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Polyamide composition for high impact thick wall product

A polyamide composition and composition technology, applied in the field of polymer composition, can solve the problem of low impact of thick-walled products

Inactive Publication Date: 2011-08-03
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current PA / ABS alloy is still very sensitive to the wall thickness of the product, and the impact of thick-walled products is much lower than that of thin-walled products.

Method used

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  • Polyamide composition for high impact thick wall product
  • Polyamide composition for high impact thick wall product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Component a)

[0094] Nylon 6 with a relative viscosity of 2.3: The viscosity is measured at 25°C with a solution of 1 g / dl in 98% concentrated sulfuric acid.

[0095] Component b)

[0096] Polyolefin copolymer of ethylene, butadiene and a small amount of maleic anhydride: containing 70wt% ethylene, 29.5wt% butadiene and 0.5wt% maleic anhydride.

[0097] Component c)

[0098] Graft copolymer: 58wt% copolymer of styrene and acrylonitrile with a weight ratio of 71:29 is cross-linked and grafted in 42wt% polybutadiene latex particles to obtain a copolymer, which is produced by emulsion polymerization.

[0099] Ethylene-based copolymer: a styrene-acrylonitrile copolymer with a component ratio of styrene and acrylonitrile of 67:33 and an intrinsic viscosity of 0.34dl / g (measured in 0.4g / 100ml butanone solution at 30°C).

[0100] Component d)

[0101] 70 parts of styrene, 25 parts of acrylonitrile, 5 parts of maleic anhydride, 0.5 parts of dicumyl peroxide and 200...

Embodiment 2

[0106] The composition of each component in the composition is the same as in Example 1, and the parts by weight of each component are: a) 30, b) 5, c) 56.5, d) 6, e) 2, and additive 0.5.

Embodiment 3

[0108] The composition of each component of the composition is the same as in Example 1, and the parts by weight of each component are: a) 30, b) 10, c) 51.5, d) 6, e) 2, and additive 0.5.

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Abstract

The invention discloses a polyamide composition of high impact thick-walled product, which comprises the following parts: a) 1-99wt% polyamide resin, b) 0. 5-40wt% thermoplastic elastomer of olefin copolymer, c) 1-95wt% phenylethene resin, d) 0. 05-60wt% modified ethylene copolymer with alpha, beta-unsaturated fatty acid anhydrides or its deritative, or e) 0. 05-60wt% modified ethylene copolymer with alpha, beta-unsaturated fatty acid. The invention can keep original superior strength, fluidity and low-temperature shock resistance of thin-walled product, which confers superior shock resistance for thick-walled product.

Description

technical field [0001] The present invention relates to a polymer composition, in particular to a polyamide composition for thick-walled products with high impact resistance. Background technique [0002] Polyamide resin (PA) is a kind of crystalline polymer that can form hydrogen bonds between strong polar molecules and has certain reactivity. It has excellent properties such as high strength, wear resistance, self-lubricating property, solvent resistance, and oil resistance. However, polyamide resin also has some shortcomings, such as poor water resistance, dimensional stability and electrical properties, as well as poor heat resistance, low temperature and impact resistance under extremely dry conditions, which greatly limit its use. Styrene resin has excellent mechanical properties balanced by toughness, hardness and rigidity. It also has the advantages of good chemical resistance, dimensional stability, low water absorption and easy processing, but its chemical resistan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08L25/04C08L25/08C08L47/00C08L23/16
Inventor 徐博何勇李天波石岩
Owner TORAY IND INC