PRODUCT

Polyamide(PA)

Overview

PRODUCT DESCRIPTION
Nylon, also known as polyamide (PA) or nylon, is a type of synthetic polymer material with repeated amide groups (- NHCO -) in its main molecular chain. It is a thermoplastic resin that can be used as synthetic fibers or engineering plastics, characterized by high strength, wear resistance, and chemical corrosion resistance.

 

Typical technical parameters of common nylon 6 (PA6) and nylon 66 (PA66)
indicator PA6 PA66 Explanation
Molecular formula C6H13NO C36H66N6O6  
density 0.9±0.1 g/cm³ 1.09 g/cm³ Belonging to lightweight engineering plastics
boiling point 255.0±0.0 °C at 760 mmHg 452.1ºC at 760 mmHg for reference only
melting point 220ºC 250-260ºC The melting point increases with the increase of crystallinity
flash point 102.2±18.4 °C 227.2ºC for reference only
solubility Soluble in formic acid, phenol, meta cresol, concentrated sulfuric acid, dimethylformamide, etc., insoluble in ethanol, ether, acetone, ethyl acetate, hydrocarbons. Soluble acetic acid and phenolic compounds  
tensile strength 60–75 MPa 70–85 MPa PA66 is relatively high
bending strength 80–100 MPa 100–120 MPa Used for load-bearing structural components
Impact strength (without gaps) 80–100 kJ/m² 90–120 kJ/m² Show excellent resilience
Water absorption rate (saturated) 7–9 % 3–4 % PA6 has stronger moisture absorption and affects dimensional stability
Thermal decomposition temperature >300 ℃ >350 ℃ Above the operating temperature, with good stability

 

 

PRODUCT USAGE
Nylon is widely used in the fields of fibers, engineering plastics, and emerging materials due to its high strength, wear resistance, good toughness, self-lubricating properties, oil resistance, and chemical corrosion resistance. The main uses are as follows:
1. Textile and Daily Necessities
① As a textile fiber, nylon has the characteristics of smoothness, wear resistance, high strength, and good elasticity, and is commonly used in the production of socks, sportswear, underwear, swimwear, umbrella fabrics, tents, fishing nets, etc.
② Nylon is widely used in daily necessities such as zippers, toothbrush bristles, ropes, fishing lines, etc.
2. Mechanical field
① Engineering plastic grade nylon is commonly used in the manufacture of components such as gears, bearings, pulleys, seals, bushings, etc. Due to its low friction coefficient and strong wear resistance, it can replace some metals.
② In the automotive industry, nylon is used for parts such as fuel pipes, radiator water chambers, intake manifolds, fan blades, etc., which have the advantages of weight reduction and oil and heat resistance.
3. Electrical and Electronic Field
① Nylon has good electrical insulation properties and stable performance under dry conditions, so it is used for cable sheaths, plug sockets, switch housings, power tool housings, etc.
② Nylon modified (such as flame-retardant nylon) is widely used in electronic component brackets, terminal sockets, connectors, and other components.
4. Packaging and film field
① Nylon film has high transparency, puncture resistance, and good barrier properties, and is commonly used in food vacuum packaging bags, pharmaceutical packaging, and composite films.
② In the engineering field, nylon film can also be used as ink substrate, capacitor film, etc.

 

Physical and mechanical properties of nylon film
project requirement
Tensile strength (longitudinal/transverse) ≥180 MPa
Tensile nominal strain (longitudinal/transverse) ≤180%
thermal shrinkage rate longitudinal ≤3.0%
horizontal ≤2.0%
haze ≤7.0%
coefficient of kinetic friction Not inside/not on the treatment surface ≤0.6
Wetting tension Inside here ≥50 mN/m
oxygen transmission rate
 
do≤0.015 mm ≤10.0×10-4 cm3/(m2·d·Pa)
do>0.015 mm ≤5.0×10-4 cm3/(m2·d·Pa)

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Company Introduction

Nasheng Import and Export (Shandong) Co., Ltd. is a comprehensive, diversified, and comprehensive company with BDO, PEG, PPG, PTMEG, MDI, TDI, PVA, NMP, and polyether polyols, polyester polyols, and polymer polyols as its main industrial chains. We have a professional sales team that has won recognition and praise from the industry with exquisite technology, sound administrative management, and good teamwork. The product is sold to multiple domestic and foreign enterprises.

We always adhere to the principle of "quality first, customer first, and reputation first", and are committed to providing customers with the best products. We will also continue to build a professional chemical product supply chain with the highest quality service, best products, and maximum efforts.

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