Weather-resistant and hydrolysis-resistant continuous glass fiber reinforced polyamide composite material and preparation method thereof

A technology of continuous glass fiber and composite material, which is applied in the field of weather-resistant and hydrolysis-resistant continuous glass fiber reinforced polyamide composite material and its preparation, can solve the problems of low impact strength, small fiber length, limited improvement of nylon material performance, etc., and achieves improved rigidity. and strength, reducing viscosity and improving surface quality

Active Publication Date: 2016-12-28
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention uses the Brüggemann copper salt antioxidant to improve the hydrolysis resistance of the material to a certain extent, but the twin-screw extruder is used for direct blending and modification, and the fiber length is very small due to the shearing effect of the screw. The performance improvement of nylon material is limited, especially the impact strength is relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033](1) A weather-resistant and hydrolysis-resistant continuous glass fiber-reinforced polyamide composite material. The cutting length of the material is 11-13 mm, and the particle size is 3.5 mm. It includes the following components by weight: PA6: 140 parts, PA66: 560 parts parts, continuous glass fiber: 300 parts, antioxidant: 8 parts, compound anti-hydrolysis agent: 4 parts, compound light stabilizer: 4 parts, lubricant: 6 parts, carbon black masterbatch: 10 parts; among them, PA66 resin, melt index is 24g / 10min, test condition is 275°C, 0.325Kg; PA6 resin, melt index is 20g / 10min, test condition is 230°C, 2.16Kg; continuous glass fiber is alkali-free continuous glass fiber, fiber diameter 17μm, linear density 2400g / km; antioxidants include N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine (anti-1098) and three [2.4-di-tert-butylphenyl] phosphite (anti-168), the weight ratio of the two is 1:2; the compound anti-hydrolysis agent is selected fr...

Embodiment 2

[0048] (1) A weather-resistant and hydrolysis-resistant continuous glass fiber-reinforced polyamide composite material, the material has a cutting length of 11-13 mm and a particle size of 3.0 mm, including the following components by weight: PA6: 120 parts, PA66: 480 parts , Continuous glass fiber: 400 parts, antioxidant: 8 parts, compound anti-hydrolysis agent: 4 parts, compound light stabilizer: 5 parts, lubricant: 8 parts, carbon black masterbatch: 5 parts; among them, PA66 Resin, melt index is 24g / 10min, test condition is 275°C, 0.325Kg; PA6 resin, melt index is 20g / 10min, test condition is 230°C, 2.16Kg; continuous glass fiber is alkali-free continuous glass fiber, fiber diameter is 17μm, linear density 1200g / km; antioxidants include N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylenediamine (anti-1098) and Three [2.4-di-tert-butylphenyl] phosphite (anti-168), the weight ratio of the two is 1:2; the compound anti-hydrolysis agent is selected from pol...

Embodiment 3

[0063] (1) A weather-resistant and hydrolysis-resistant continuous glass fiber-reinforced polyamide composite material, the material has a cutting length of 11-13 mm and a particle size of 3.5 mm, including the following components by weight: PA6: 100 parts, PA66: 400 parts , Continuous glass fiber: 500 parts, antioxidant: 8 parts, compound anti-hydrolysis agent: 4 parts, compound light stabilizer: 2 parts, lubricant: 4 parts, carbon black masterbatch: 15 parts; among them, PA66 Resin, melt index is 24g / 10min, test condition is 275°C, 0.325Kg; PA6 resin, melt index is 20g / 10min, test condition is 230°C, 2.16Kg; continuous glass fiber is alkali-free continuous glass fiber, fiber diameter is 17μm, linear density 4800g / km; antioxidants include N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylenediamine (anti-1098) and Three [2.4-di-tert-butylphenyl] phosphite (anti-168), the weight ratio of the two is 1:2; the compound anti-hydrolysis agent is selected from po...

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Abstract

The invention discloses a weather-proof and hydrolysis-resistant continuous glass fiber reinforced polyamide composite material, which is prepared from the following components by weight: 400-560 parts of PA66, 100-140 parts of PA6, 300-500 parts of continuous glass fiber, 6-10 parts of an antioxidant, 1-6 parts of a composite anti-hydrolysis agent, 2-5 parts of a composite light stabilizer, 4-8 parts of a lubricant, and 5-15 parts of a carbon black masterbatch. The weather-proof and hydrolysis-resistant continuous glass fiber reinforced polyamide composite material provided in the invention has excellent weatherability and good hydrolysis resistance, and at the same time has excellent rigidity and impact toughness. An injection molding piece made of the composite material has a good surface appearance. Besides, the material can be directly shaped through injection molding, the production efficiency is high, and the used piece can be recycled after smashing.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a weather-resistant and hydrolysis-resistant continuous glass fiber reinforced polyamide composite material and a preparation method thereof. Background technique [0002] The main molecular chain of nylon 66 (PA66) contains strongly polar amide groups, and the hydrogen bonds between the amide groups make the intermolecular bonding stronger, and the structure is easy to crystallize, so the material has good mechanical properties, such as strength High rigidity, impact resistance, etc. In addition, the material also has the advantages of oil and chemical resistance, wear resistance, self-lubrication and good processing fluidity, especially heat resistance and creep resistance. In addition, the raw material of PA66 is easy to obtain and the cost is low, so it is widely used in industries, clothing, decoration, engineering plastics and other fields. However, PA66 has poor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L77/02C08K13/04C08K7/14C08K3/04C08J3/22
Inventor 杨桂生蒋超杰
Owner HEFEI GENIUS NEW MATERIALS
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