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Polyamide

Polyamid - Nylon PA termoplaster Plastbearbetnin

Polyamide fabric may not shrink but it can stretch somewhat. Polyamide fabric is the stronger of the two and should last you longer. That fabric is seen as softer, more comfortable, and is oil resistant while polyester doesn't resist oil and while close to polyamides for the other two, it does not beat polyamide out in those categories TECAMID/TECAST Ensinger Plast. PA-material, polyamid eller vanligen kallat nylon, tillverkas av Ensinger i form av standardmässiga halvfabrikat för vidare bearbetning och extruderas till plattor, stavar och rör. Nylonplaster förknippas ofta med nummer, såsom 6, 66, 12 och 46. Dessa nummer hänför sig till molekylstrukturen hos. Polyamide Advantages. Assembly Time: Polyamide items are regularly a lot faster to gather than their rivals. They are less cumbersome and simpler to move, and they fit with frill-like connectors without any problem. While metal items are tedious to cut, polyamides take into consideration quick cutting and gathering

Polyamide fabrics may be toxic, a little risky to wear but they are soft, comfortable, and warm to wear. If you are camping in the cold mountains, etc., it pays to have warm fabrics like these in your backpack. They may or may not be expensive to buy depending on where you shop for your material or clothing items Polyamide 11 (PA11) or Nylon 11 is a rare bio-based engineering plastic that is derived from renewable resources (castor plants) and produced by polymerization of 11-amino undecanoic acid. Rilsan® is one of the first biosourced polyamide. Melting point of Polyamide 11 is 190°C

Polyamid - Wikipedi

Another important polyamide is Nylon 6,12. It is less hydrophilic than Nylons 6,6 and 6 due to the larger number of methylene groups in the polymer backbone. For this reason, it has better moisture resistance, dimensional stability, and electrical properties, but the degree of crystallinity, the melting point and the mechanical properties are lower Polyamide-6 (PA-6) is a widely used engineering material. Oxidative degradation of PA-6 membranes was found using lignolytic white rot fungus IZU-154. Aspergillus niger- mediated degradation of polyamides based on tartaric acid and hexamethylenediamine and Corynebacterium aurantiacum- mediated degradation of ε-caprolactam, as well as its oligomers, have been reported ( Marqué et al., 2000 ) Polyamide 6,6 is produced by reacting 1,6-diaminohexane (hexamethylenediamine) with hexanedioic acid (adipic acid) by condensation polymerization. One of the monomers, hexanedioic acid is also produced from KA mixed oil (cyclohexanol and cyclohexanone) Polyimide (sometimes abbreviated PI) is a polymer of imide monomers belonging to the class of high performance plastics.With their high heat-resistance, polyimides enjoy diverse applications in roles demanding rugged organic materials, e.g. high temperature fuel cells, displays, and various military roles.A classic polyimide is Kapton, which is produced by condensation of pyromellitic.

聚醯胺(英語: Polyamide ,PA)是由含有羧基和氨基的單體通過醯胺鍵聚合成的高分子。 此聚合物可天然生成(如羊毛及蠶絲等各種天然蛋白質),或以人工方式通過逐步聚合或固相聚合(如尼龍)或芳香聚醯胺和鈉聚(如天門冬氨酸)生產。 由於其極端的耐用性和強度,人工聚醯胺聚合物常見於. Polyamide Nylon: Properties, Production and Applications. Nylon is the commercial name for a type of polyamide thermoplastic. It was first developed by DuPont engineers in the mid-1930s and has since been used in almost every industry. Polyamide nylon has a wide range of uses including rope, gears and even stockings

Polyamide (Kurzzeichen PA) sind lineare Polymere mit sich regelmäßig wiederholenden Amidbindungen entlang der Hauptkette. Die Amidgruppe kann als Kondensationsprodukt einer Carbonsäure und eines Amins aufgefasst werden. Die dabei entstehende Bindung ist eine Amidbindung, die hydrolytisch wieder spaltbar ist.. Polyamide werden wegen ihrer hervorragenden Festigkeit und Zähigkeit oft als. Polyamide-6 forms α-type and γ-type crystals. 1 The melt shaped polyamide-6 has a high α-type crystal ratio. 1 An increased α-type crystal ratio may be produced, when a nucleating agent is added to the polyamide-6 to increase the speed of crystallization, or when an ordinary polyamide-6-shaped article is annealed to increase the degree of crystallinity. 1 It has been discovered that by. POLYAMIDE 6. The 'Substance identity' section is calculated from substance identification information from all ECHA databases. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas. Some substance identifiers may have been claimed.

BASF is the only company in the world that offers Polyamide 6 and Polyamide 6.6 as well as their raw materials. Production sites in Ludwigshafen (Germany), Antwerp (Belgium) and Asia supply Polyamide and Polyamide Intermediates to customers in Europe and Asia. The NAFTA production sites supply customers within the NAFTA region. We are also there ポリアミド (polyamide) とは、アミド結合によって多数のモノマーが結合してできたポリマーである。 一般に脂肪族骨格を含むポリアミドをナイロンと総称し、これは初めて合成されたポリアミドであるナイロン-66のデュポン社の商標に由来する。 また、芳香族骨格のみで構成されるポリアミドは. New Polyamide fibers are particularly soft and supple. They are becoming more and more popular, as even with frequent washing, the fabric remains consistently beautiful and soft. Moreover, there are now recycled Polyamide fibers that are 100% sustainable. Often, comfort and wearing properties are increased by adding Polyamide fibers. Advantages Ένα πολυαμίδιο (polyamide) είναι ένα μακρομόριο με επαναλαμβανόμενες μονάδες (repeating units.

Vad betyder polyamid - Synonymer

  1. e (NH2) group and a carboxy
  2. Polyamide cable protection systems also have a range of industry applications beyond those that require cable protection. Some industrial uses include the following: Automotive: In the automotive industry, polyamide often forms air intake manifolds, engine covers, valve covers and airbag containers, as well as external components like handles, grilles, wheel covers and fuel caps and lids
  3. Polyamide (PA) Flexible Tubing | #1025P08 04. PA-rör är utprovade för industri- eller fordonstillämpningar och garanterar utmärkt hållbarhet tack vare stabila mekaniska egenskaper. En särskild typ av halvstyv polyamid tillverkad med vår metod för ekologisk design för högre prestanda. Visa seriesida
  4. Polyamide (PA) Polyamides are among the most important and proven technical thermoplastics, known for their heat resistance, stiffness and high mechanical stability. Polyamides can be classified into different types, with PA 6, PA 6.6 and PA 12 most established on the market. Alongside ABS and PP compounds they are among the most widely used.

Polyamide is used in both cast and blown film equipment, predominantly for multilayer films. Since nylon is a semicrystalline material, processes that rapidly cool the polyamide film will result in lower crystallinity and therefore provide more transparent, flexible, thermoformable film. fig 1 Like polyester, polyamide is made from a non-renewable resource (oil) in an energy-intensive process. It sheds microplastic fibers that end up in our waterways and oceans every time it is washed, and because it is not biodegradable, it will end up sitting in a landfill at the end of its product life cycle. As an organization, Textile Exchange. Polyamide (Kurzzeichen PA) sind Polymere, deren Wiederholungseinheiten als charakteristisches Merkmal die Amidgruppe besitzen. Die Amidgruppe kann als Kondensationsprodukt einer Carbonsäure und eines Amins aufgefasst werden. Die dabei entstehende Bindung nennt man Peptidbindung. Sie ist hydrolytisch wieder spaltbar.. Die Bezeichnung Polyamide wird üblicherweise als Bezeichnung für.

Answer (1 of 5): The difference between polyamide and polyester fabric: Both synthetic fibres are very tear-proof and abrasion-resistant and absorb little moisture (thus good transport of moisture away from the body) and are stretchy, crease-free, but also prone to pilling. Polyamide has the hig.. Advantages. Easier to process than Nylon 6/6 (castable), may be reaction injection moulded. Has lower mould shrinkage than Nylon 6/6 with good fatigue resistance. Useful improvement in stiffness can be obtained by inclusion of glass fibres, unlike acetals Answer (1 of 2): Nylon is a synthetic polymer called a polyamide because of the characteristic monomers of amides in the backbone chain. Polyamides are also naturally occurring - proteins such as wool and silk are also polyamides. We commonly see two basic types of nylon used in fabrics: nylon 6.. a thermoplastic polyamide; a family of high-strength resilient synthetic materials. Nylon is a generic designation for a family of synthetic polymers composed of polyamides (repeating units linked by amide links). Nylon is a silk-like thermoplastic, generally made from petroleum, that can be melt-processed into fibers, films, or shapes RUNDBRICKA STOR M10 POLYAMID 6.6 DIN 9021. Artikelnr: 389846. Lev. artikelnr: 090216000105000 | Mer info. Logga in för att se prisuppgifter. Visa ersättningsartikel. ST. Lägg till i varukorgen. Avrundat till hel förpackning. Den valda artikeln har blivit ersatt

Le polyamide a les mêmes impacts négatifs que l'ensemble des fibres synthétiques issus de la pétrochimie. Ces fibres représentent un danger pour la planète et pour les hommes. Le polyamide est une fibre polluante et sa fabrication demande une consommation importante de ressources naturelles (énergie et pétrole) Polyamide(简称PA),聚酰胺纤维俗称尼龙(Nylon)或锦纶,密度1.15 g/cm³,是分子主链上含有重复酰胺基团—[NHCO]—的热塑性树脂总称。包括脂肪族PA,脂肪—芳香族PA和芳香族PA。其中,脂肪族PA品种多,产量大,应用广泛,其命名由合成单体具体的碳原子数而定 Depends on the type and structure of the monomers used to prepare the polyamide. For nylon 6 and nylon 66 sulphuric acid, ,m-cresol, formic acid , trifluoroacetic acid are good solvents. You need. Un polyamide (PA) [1] est un polymère contenant des fonctions amide (=) pouvant résulter de la polycondensation entre les fonctions acide carboxylique et amine.. En 1927, la société américaine Du Pont de Nemours constitue un service de recherches pour l'étude de la synthèse des polymères à longues chaînes. La direction en est confiée à Wallace Hume Carothers Polyamide usage is rapidly increasing in the automotive sector. Demand for bio-based polyamide is also increasing due to it eco- friendly nature. Polyamide 6 (PA 6) is the most dominant type of Polyamide brought in use in a variety of products and fiber application is the fastest growing application for polyamide market

What is Polyamide Fabric: Properties, How its Made and

  1. Polyamide is a synthetic material, patented in the 1930s by the famous American company Du Pont.It is also known as Nylon. Produced in the form of long, thin filaments, polyamide has an elastic structure and was first used with great success to produce ladies' stockings
  2. Polyamide fabrics are ideal for carpets placed in high-traffic areas, i.e., where objects may be shifted, as their fibers are more elastic. Polyamide fabrics also have many industrial applications, where they are condensed into solids and used for machine and automotive parts because of their strength-flexibility combination
  3. Polyamide 11 Resin. Discover the Product range Rilsan® . Produced from castor oil, Rilsan ® PA11 resin is a high-performance polymer of 100% renewable origin. Rilsan ® PA11 resin has been a trusted source of performance in highly demanding applications for 70 years. Since its beginning, it has been synonymous with performance and durability
  4. Visit ChemicalBook To find more Polyamide(63428-84-2) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. You can also browse global suppliers,vendor,prices,Price,manufacturers of Polyamide(63428-84-2). At last,Polyamide(63428-84-2) safety, risk, hazard and MSDS, CAS,cas.
  5. Polyamide fabric, also known as nylon fabric, is made of plastic. Polyamide fabric, like polyester fabric, is a manmade polymer. It is manufactured through a chemical process. In short, high amounts of heat and pressure are applied to fossil fuels to yield sheets of polyamide and nylon
  6. Polyamide granules. Image credit: Maciej Bledowski/Shutterstock.com. Polyamide (PA) resins are a family of thermoplastic polymers (Nylon, Kevlar ®), which means that they may be formed with heat and re-melted without losing their intrinsic characteristics.Thermoplastics differ in this way from thermosets, which undergo permanent change after hardening

폴리아미드(Polyamide) 폴리아미드(polyamide)는 지방족 또는 방향족 아미드의 주쇄(主鎖)구조를 갖는 폴리머로서 지방족 폴리아미드는 일반적으로 나이론이란 상표명으로, 방향족 폴리아미드는 아라미드 라는 상표명으로 잘 알려져 있다. 아래 그림에 지방족 폴리아미드와 방향족 폴리아미드의 예로서. Polyamide. Polyamide PA66 has good rigidity, hardness, abrasion resistance and thermal dimensional stability. In addition, PA66 has outstanding wear resistance and low frictional properties. It also has very good temperature, chemical, and impact properties. Users should be aware of PA66 propensity to absorb moisture which could affect. PA 12 polyamide is a versatile 3D printing material used for fully functional prototypes and end-use parts. The PA 12 material used for the SLS 3D printing process at Materialise is certified as biocompatible and food-safe under certain conditions Polyamide 12 for 3D Printing. White polyamide 12 powder, also known as nylon, is the most tested material for additive manufacturing on the market. Parts made from nylon are robust, stable for long periods of time, chemically resistant and extremely versatile. EOS materials based on polyamide 12 are a high-performance alternative to plastics. Published May 2020. There are two basic types of polyamide (non-nylon) resins: dimer acid-based (DAB) polyamides and polyamideepichlorohydrin (PAE) resins. The DAB polyamides can be either reactive or nonreactive. Consumption of reactive DAB polyamides is largely dependent on use of epoxy resins use in anticorrosion coatings, flooring, and.

Define polyamide. polyamide synonyms, polyamide pronunciation, polyamide translation, English dictionary definition of polyamide. n. A polymer containing repeated amide groups, as in various kinds of nylon. American Heritage® Dictionary of the English Language, Fifth Edition Our Ultramid ® A grades represent the functionalized polyamide range of differentiated and additivated polyamide 6.6. Applications include textiles, fibers, industrial yarns and engineering plastics. Zudem eignen sich Ultramid ® A is suitable for a vast array of applications in engineering plastics, textile and industrial yarns and performance fibers Polyamide definition is - a compound characterized by more than one amide group; especially : a polymeric amide (such as nylon)

Polyamid - Hobbii.s

polyamide: A type of condensationpolymer produced by the interactionof an amino group of one moleculeand a carboxylic acid group of anothermolecule to give a protein-likestructure. The polyamide chains arelinked together by hydrogen bonding. Industrial uses: Polyamide may be in linear form, known asnylon, or in aromatic form Polyamide is produced from crude oil, which is a non-renewable raw material. This is why it is not an entirely obvious choice to use these fibers for such a short-lived product like clothing. When clothes made with polyamide are discarded after people are finished wearing them, they mainly end up polluting the environment I am including it to show that it is possible to get a polyamide from a single monomer. Nylon-6 is made from a monomer called caprolactam. Notice that this already contains an amide link. When this molecule polymerises, the ring opens, and the molecules join up in a continuous chain

Polyamide (MJF) is an exceptionally versatile, strong and slightly flexible material. It can resist a small degree of impact and some pressure while being bent. Depending on the design, it can be flexible or rigid. The surface has a sandy, granular look, and is slightly porous. By using HP Multi Jet Fusion technology, your models will have a. PAI (Polyamide-imide), also known as Duratron® or Torlon® is an imidized thermoplastic material, with a continuous use temperature range of up to 500° F (260° C). It is categorized as an extreme performance material, and offers high strength and wear resistance, and the ability to withstand harsh thermal, chemical, and stress conditions The global polyamide market size is expected to reach USD 53.32 billion by 2028 and is expected to expand at a CAGR of 6.2% from 2021 to 2028. Increasing adoption of polyamide in numerous.

Advantages Excellent surface finish even when reinforced Strength Stiffness Chemical resistance to hydrocarbons Limitations High water absorption Poor chemical resistance to strong acids and bases OverviewBecause of nylon's versatility, it is one of the most widely used engineering thermoplastics. Commercially available nylons include nylon 6, nylon 4/6, nylon 6/6, nylon 6/10, nylon 6/12. Nylon er et syntetisk polymer, der er sammensat af mange enheder af en diamin og en dicarboxylsyre ved hjælp af amidbindinger.Derfor kaldes stoffet ofte polyamid. Alt efter hvilke monomerer der polymeriseres opnås forskellige egenskaber af stoffet. Det var den første syntetiske fiber, som blev fremstillet udelukkende på basis af uorganiske råstoffer: kul, vand og luft

Find here online price details of companies selling Polyamide. Get info of suppliers, manufacturers, exporters, traders of Polyamide for buying in India 4% Polyamide. Hem / Produkt Material / 4% Polyamide. filters. Varumärke. Matinique (1) Storlek. S (1) M (1) L (1) XL (1) XXL (1) MATINIQUE - HERITAGE OVERSHIRT 1 999,00 kr; ADELSGATAN 18 621 57 Visby. order@julia.se 0498215315. Villkor & Konto. Mitt konto; Köp- och leveransvillkor; Sekretesspolicy; Om oss. Om.

The Truth About Polyamide Fabric Panapriu

Le polyamide ne peut pas être considéré comme une matière pour la mode responsable. Son processus de production est énergivore, polluant, et très gourmand en eau. Au lavage des vêtements en polyamide, des micro-particules de plastique se détachent, et finissent dans nos océans Polyamide films or fabrics are placed between the surfaces to be joined after application of, for example, a solution of phenol-formaldehyde resin. The thermosetting adhesive bonds harden at room temperature, in which case curing agents are used, or upon heating up to 120°-160°C with a slight contact pressure

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What does polyamide mean? A polymer produced by the reaction of the amino group (NH2 ) from one molecule with the carboxylic acid group (CO2 H) fr.. A polyamide epoxy is a polymer that employs a polyamide resin as a curing agent. A polyamide in an epoxy is essentially an organic compound very similar to ammonia, but has had one of its hydrogen atoms replaced with another atom. A polyamide epoxy is commonly used as a coating or an adhesive. Advertisement Lifecycle Polyamide is mainly produced from recycled fishing nets and textile waste. The sustainable sewing thread is only dyed with compostable dyes. Lifecycle Polyamide has excellent strength and colour fastness properties and is robust, abrasion-resistant and durable Chemical Resistance of Durethan Polyamide Resins.pdf Author: esjph Created Date: 5/18/2005 10:13:34 AM.

Polyamide vs Polyester: 12 Differences And What Is Bette

PA Polyamide Nylon - TECAMID Ensinge

About products and suppliers: Alibaba.com offers 11285 polyamide price products. About 22% % of these are pa, 1%% are 100% nylon yarn, and 1%% are knitted fabric. A wide variety of polyamide price options are available to you, such as nylon 6, dty and fdy.You can also choose from hot melt adhesives, polyamide price,As well as from 100% nylon. Polyamide Tube Clean Room Tube nti-Spatter Tube nti-Stalic Tube Tube Binder Tube cutter Insert Ring Tube Reel T T PT Tube for Food Industry Polyamide Tube Conform to Standards and criteria for food and food additives. (Welfare Ministry of Japan, Notice No.370) Hardly Turn Yellow Food Industr Polyamide yarns continue to be used in high value carpet applications. This is due to the superior properties of polyamide compared with other yarn types. STANTEX® spin finishes are available for different bulked continuous filament (BCF) yarn types, which are natural-solution dyed, and also for critical applications like automotive Een polyamide is een molecuul dat bestaat uit een keten van monomeren van het type amide.Een polyamide kan een alifatische (acyclische) structuur hebben, maar kan ook gevormd worden uit arylverbindingen.Wol en zijde zijn natuurlijke polyamiden. Daarnaast bestaan er talloze kunststoffen van polyamide, zoals nylon en aramide.Synthetische amiden worden doorgaans gesynthetiseerd uit een carbonzuur.

Video: Polyamide - Meaning, Structure, Properties, Advantage and

What Is Polyamide Fabric Material? (Is It Toxic-Safe-Warm?

Polyamide 6 is made from caprolactam and polyamide 6.6 from hexamethylenediamine and adipic acid. For fibre production, the resulting polyamide has to have the capacity to be spun into filaments, i.e. it must have the capacity to be melted without decomposing and to be forced through a je Applications of Polyamide - Nylon 6/6 30% Glass Fibre Reinforced include many engineering components such as under-bonnet automobile parts and most components on wind-surfers. Key Properties. The key properties of Polyamide - Nylon 6/6 30% Glass Fibre Reinforced are tabulated below Polyamide of Nylon is door zijn hoge slijtvastheid in combinatie met goede glij- en roleigenschappen dé kunststof voor dynamische toepassingen in de werktuigbouw. Het harde materiaal heeft een sterk geluiddempend vermogen, is taai en stijf en heeft goede bewerkingsmogelijkheden. Door toevoeging van vulstoffen wordt Polyamide in veel uitvoeringen geproduceerd en worden de verschillende.

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Akulon polyamide 6 & 66 resins represent the best value in all-purpose engineering materials, offering an excellent balance of design and processing with outstanding mechanical properties in diverse operating environments The Polyamide Market is estimated to grow from USD 25.1 billion in 2016 to USD 30.8 billion by 2021, at a compound annual growth rate (CAGR) of 4.1% during the forecast period. The market is driven by the increasing applications of polyamide in the automotive industry as a replacement of metal parts and for vehicle reduction

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Polyamide/Nylon (PA Plastic): Uses & Properties [Updated 2020

Polyamide 6, 30% glass fiber reinforced, heat stabilized. EPLAMID 6 GFR 30 NC ST Q1D001. PA6-GF30. Polyamide 6, 30% glass fiber reinforced, heat stabilized. EPLAMID 6 GFR 33 NC Q1D301. PA6-GF33. Polyamide 6, 33% glass fiber reinforced, heat stabilized Syntetfiber. Syntetfibrer är ett samlingsnamn för konstfiber som tillverkas av syntetiska organiska polymerer. Oftast är syntetfibrerna baserade på petroleum. Det finns två sorters konstfiber, syntetiska fibrer och regenatfibrer. De syntetiska fibrerna påminner mycket om plaster medan regenatfibrerna kommer från material från naturen. DuPont ™ Zytel ® is a portfolio of nylon resin materials proven in a wide range of applications. Zytel ® products deliver high-performance benefits ranging from stiffness to heat resistance.. Manufacturers of everything from automobiles to consumer electronics rely on DuPont ™ Zytel ® whenever they have an application demanding high-performance nylon ATR-FT-IR spectra of conservation-related materials in the MID-IR and FAR-IR regio

Properties of Polyamides - polymerdatabase

Polyamide ( PA6 ) sind der Gruppe der Thermoplaste zuzuordnen und weisen als Konstruktionskunststoff eine hohe Festigkeit auf, sodass mit ihnen eine sehr breite Palette an Anwendungsfällen abgedeckt werden kann. PA6 + Öl wird.. The key difference between nylon and polyamide is that nylon is a synthetic material, whereas polyamides can be either natural or synthetic.. Nylon and polyamides are closely related terms because both materials are polymers, and nylon is a type of polyamide.. CONTENTS. 1. Overview and Key Difference 2. What is Nylon 3. What is Polyamide Polyamide in powder form is used in SLS (Selective Laser Sintering). Printers made by 3D Systems and EOS GmbH use this method to melt polyamide plastic with laser energy. In wire form in FDM (or fused deposition modelling),the polyamide material is heated until in a liquid state, then extrudes from a nozzle that applies it layer by layer in order to create the desired object Tried-and-tested for industrial or vehicle applications, PA tubing guarantees excellent durability due to its stable long-term mechanical properties. Special grade of semi-rigid polyamide manufactured according to our Eco-Design approach

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Bonding Nylon/Polyamide with Industrial Adhesive. Polyamide (commonly called Nylon which is a DuPont tradename), is a thermoplastic material widely used in a number of applications across various industries. Special blends are often available with features such as high lubricity, flexibility, and flame retardant properties Polyamide (PA, Nylon) 6. PA 6 is a thermoplastic, further classified as a polyamide (or Nylon) plastic. The properties of PA 6 include eight common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare PA. On January 31, 2020, BASF closed the acquisition of Solvay's polyamide (PA 6.6) business. The transaction broadens BASF's polyamide capabilities with innovative and well-known products such as Technyl®. This will allow BASF to support its customers with even better engineering plastics solutions, e.g., for autonomous driving and e-mobility Polyamide crystallization structures 1. About crystallization of polyamide Ted Brink 2. Page 2 Contents • H-bonds in polyamide • Thermal properties • Crystallization • Influence of moisture • Crystal structures • Conclusions 3. Page 3 Hydrogen bonds and interaction with water water 4 A polyamide is a polymer containing monomers of amides joined by peptide bonds. They can occur both naturally and artificially, examples being proteins, such as wool and silk, and can be made artificially through step-growth polymerization or solid-phase synthesis, examples being nylons, aramids, and sodium poly (aspartate) Durethan® is the trade name for our range of engineering thermoplastics based on polyamide 6 and polyamide 66. Polyamides are partially crystalline thermoplastics which offer an ideal combination of properties, especially for technical applications. In addition to being easy to process, polyamides combine high mechanical strength and stiffness.