Contact us

  • 手机:18962699860
  • 电话:0512-50337223
  • 传真:0512-50337496
  • 地址:Kunshan City, Yushan Town, Xiao Linlu No. 996
  • 地址:Kunshan Lujia Shitailong International Plastics City G District No. 6

Engineering Plastic

Your current position:Home > Product > Engineering Plastic



PA polyamide (commonly known as nylon)

Properties: nylon is a tough angle shaped translucent or milky white crystalline resin, as the engineering plastics nylon molecular weight is generally 1.5-3 million. Nylon has high mechanical strength, high softening point, heat resistance, low friction coefficient, wear resistance, self lubrication, shock absorption and silencing, oil resistance, resistance, weak acid, alkali and solvents, electrical insulation good, self extinguishing, non-toxic, no smell, good weatherability, poor dyeability. The disadvantage is that the water absorption is big, affecting the size stability and electrical properties, fiber reinforced resin can reduce water absorption, so that it can work under high temperature, high humidity. Nylon and glass fiber affinity is very good. Commonly used in the production of comb, toothbrush, hook, fan, bag rope, fruit bags etc.. Non toxic, but not long-term contact with acid and alkali.

It is worth noting that, after the addition of glass fiber, nylon tensile strength can be increased by about 2 times, the temperature resistance is also improved accordingly.

The shrinkage rate of nylon is 1%~2%.

Nylon type: main varieties in nylon are nylon 6 and nylon 66, absolute dominant position, followed by nylon 11, nylon 12, nylon 610, nylon 612 and nylon 1010, nylon 46, nylon 7, nylon 9, nylon 13, new varieties of nylon 6I, nylon 9T and nylon MXD6 special (barrier resins), nylon modified variety quantity, such as reinforced nylon, monomer casting nylon (MC nylon), reaction injection molding (RIM) aromatic nylon, nylon, nylon, high impact (Supertough nylon), electroplating conductive nylon, nylon, flame retardant nylon, nylon and other polymer blends and alloys, meet various special requirements, widely used in metal, wood and other traditional materials as substitutes, various structure materials.

Modification of nylon

Due to the characteristics of strong polarity of PA, strong moisture absorption, poor dimensional stability, but can be improved through modification.

Glass fiber reinforced PA

The mechanical properties, dimensional stability, heat resistance and aging resistance of PA were significantly increased, and the fatigue strength of PA was 2.5 times of that of the glass fiber added with 30%. The molding process of glass fiber reinforced 10-40 is approximately the same as that of the reinforced PA, but the flow is enhanced, so the injection pressure and injection speed should be improved. Since glass fibers in the injection molding process will along the flow direction, causing the mechanical properties and shrinkage rate in the orientation direction, resulting in enhanced product warpage. Therefore, the mold design, the location and shape of the gate to reasonable, the process can improve the mold temperature, after removing the product into hot water to slow cooling. In addition, the greater the proportion of glass fiber, the greater the wear of the plastic injection molding machine components, the best is the use of double metal screw, barrel.

Flame retardant PA

As the flame retardant agent is added in the PA in, most of the flame retardant agent at high temperature is easy to decompose, releasing acidic substances, the metal with corrosive effect, therefore, plasticizing components (screw, plastic head, rubber ring, rubber gasket, flange) needs to be plated with hard chromium processing. Technology, as far as possible to control the cylinder temperature can not be too high, the injection speed can not be too fast, in order to avoid the high temperature of the rubber compound and the decomposition of products and mechanical properties decreased.

Transparent PA

Has good tensile strength, resistant impact strength, rigid, wear resistance, chemical resistance, surface hardness etc. performance, high transmittance, similar with that of optical glass, processing temperature 300--315 DEG C, when processing, strict control of barrel temperature, melt temperature is too high will products discoloration caused by the degradation, the temperature is too low will for plasticating will affect the products of transparency. Mold temperature as far as possible to take some low, high mold temperature will be due to crystallization and reduce the transparency of the product.

Weather PA

In PA joined the carbon black UV absorbing additives and the PA of self - Lubrication and metal wear greatly enhanced, when processing will under the influence of material and mechanical wear. Therefore, the feeding ability and wear resistant screw, high barrel, plastic head, rubber ring, rubber washer.


【 Return 】  丨  Top ▲

Kunshan Lujia Shitailong International Plastics City G District No. 6| technical support:SUN
Add:Kunshan City, Yushan Town, Xiao Linlu No. 996 Tel:0512-50337223 Fax:0512-50337496