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A low floating fiber, high impact strength polyamide composite material

A composite material, high-impact technology, applied in the field of engineering plastics, can solve the problems of heat resistance decline, mechanical properties decline, precipitation, etc., achieve high impact strength performance, and improve the effect of floating fiber problems

Active Publication Date: 2022-06-07
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Addition of other ingredients often causes disadvantages such as decreased mechanical properties, decreased heat resistance, or precipitation, but has not been applied on a large scale

Method used

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  • A low floating fiber, high impact strength polyamide composite material
  • A low floating fiber, high impact strength polyamide composite material
  • A low floating fiber, high impact strength polyamide composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A low-floating fiber, high-impact-strength polyamide composite material, the composite material is made from the following raw materials by weight: 19 parts of GFZ1700, 37 parts of GFZ3500 powder, 40 parts of ECS10-03-568H, S-EED FF 1 parts, PVPK-90 2 parts, M717 0.4 parts, IRGANOX 1098 0.2 parts, TR044W 0.4 parts.

[0033] A preparation method of low-floating fiber, high-impact-strength polyamide composite material, comprising the following steps: mixing polyamide resin A, hindered amine stabilizer, polyvinylpyrrolidone, colorant and auxiliary agent for 10 minutes, and then mixing the obtained mixture Add to the feeding hopper of the twin-screw extruder, add glass fiber from the feeding port of the sixth section of the screw barrel, crush the polyamide resin B into powder, and then add it from the feeding port of the fifth section of the screw barrel. After plasticizing, extruding after melting, drawing, cooling, and pelletizing, the low-floating fiber, high-impact-str...

Embodiment 2

[0036] A low-floating fiber, high-impact-strength polyamide composite material, the composite material is made from the following raw materials by weight: 28 parts of GFZ1700, 28 parts of GFZ3500 powder, 40 parts of ECS10-03-568H, S-EED FF 1 parts, PVPK-90 2 parts, M717 0.4 parts, IRGANOX 1098 0.2 parts, TR044W 0.4 parts.

[0037] The preparation method of a low-floating fiber, high-impact-strength polyamide composite material is the same as that in Example 1.

Embodiment 3

[0039] A low-floating fiber, high-impact-strength polyamide composite material, the composite material is made from the following raw materials by weight: 33 parts of GFZ1700, 23 parts of GFZ3500 powder, 40 parts of ECS10-03-568H, S-EED FF 1 parts, PVPK-90 2 parts, M717 0.4 parts, IRGANOX 1098 0.2 parts, TR044W 0.4 parts.

[0040] The preparation method of a low-floating fiber, high-impact-strength polyamide composite material is the same as that in Example 1.

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Abstract

The invention provides a polyamide composite material with low floating fiber and high impact strength. The composite material is made of the following raw materials in parts by weight: 20-93.6 parts of polyamide resin, 5-65 parts of glass fiber, hindered amine stabilizer 0.2-2 parts, 1-5 parts of polyvinylpyrrolidone, 0.1-3 parts of colorant, 0.1-5 parts of auxiliary agent. The polyamide composite material with low floating fiber and high impact strength described in the present invention uses polyamide resins with the same structural formula and different relative viscosities for compounding, and simultaneously adds hindered amine stabilizers and polyvinylpyrrolidone, which are combined with nylon molecules Hydrogen bonds can be formed between them, which can improve the floating fiber problem on the surface. The hindered amine stabilizer and polyvinylpyrrolidone also interacted before, so that the polyamide composite can maintain a high impact strength performance.

Description

technical field [0001] The invention belongs to the field of engineering plastics, in particular to a polyamide composite material with low floating fiber and high impact strength. Background technique [0002] Glass fiber reinforced polyamide has excellent mechanical strength, wear resistance, heat resistance, chemical corrosion resistance, etc. and is widely used in automobiles, rail transit, electronic appliances and other fields. However, due to the existence of glass fibers, it is easy to form floating fibers on the surface of the product, which affects the appearance of the product. A common method is to use low-viscosity polyamide resin to improve the appearance, but when its relative viscosity is too low, the impact strength of the material is relatively poor, and when the viscosity is low, the material cools quickly, resulting in poor mold replication, which is also prone to occur. Floating fiber. Another method is to improve the floating fiber by adding other com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08L39/06C08K7/14C08K13/04
CPCC08L77/00C08L2205/025C08L2205/03C08L39/06C08K7/14C08K13/04
Inventor 周华龙黄牧柴永柱易新张永
Owner TIANJIN KINGFA NEW MATERIAL
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