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A light flame retardant reinforced polyamide composition and its preparation method

A polyamide composition and polyamide technology are applied in the field of lightweight flame-retardant reinforced polyamide compositions and their preparation, and can solve the problems of poor performance and many defects.

Active Publication Date: 2021-05-11
CATHAY R&D CENT CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to overcome the problems that light polymer materials in the prior art are difficult to meet the existing requirements for light weight, poor performance and many defects, the present invention provides a new type of light flame retardant reinforced polyamide composition and its composite material preparation method

Method used

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  • A light flame retardant reinforced polyamide composition and its preparation method
  • A light flame retardant reinforced polyamide composition and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Polyamide 56 (PA56, relative viscosity of 96% sulfuric acid is 2.72): 2472.5g

[0088] Hollow glass microspheres (particle size 56μm, true density 0.32g / cm 3 , Compression 13.78MPa): 250g

[0089] Flame retardant decabromodiphenylethane: 700g

[0090] Flame retardant synergist antimony trioxide: 300g

[0091] E-glass fiber: 1000g

[0092] Compatibilizer MBS: 150g

[0093] Coupling agent KH-550: 2.5g

[0094] Other additives combination (including EBS, calcium stearate, silicone powder, calcium montanate, talc, antioxidant 1098): 125g

[0095] The preparation method of lightweight flame-retardant reinforced polyamide 56 resin:

[0096] (1) Disperse 50g of coupling agent KH-550 in 150g of ethanol-water (mass ratio 1:1), and then evenly spray the mixed solution on the surface of hollow glass microspheres under high-speed stirring, so that the coupling agent can be evenly coated Cover hollow glass microspheres; the speed of the high-speed mixer is 600-800rpm, the mix...

Embodiment 2

[0107] Polyamide 56 (PA56, relative viscosity of 96% sulfuric acid is 2.72): 1970g

[0108] Hollow glass microspheres (particle size 56μm, true density 0.32g / cm 3 , Compression 13.78MPa): 500g

[0109] Flame retardant decabromodiphenylethane: 700g

[0110] Flame retardant synergist antimony trioxide: 150g

[0111] Flame retardant synergist zinc borate: 150g

[0112] E-glass fiber: 1250g

[0113] Compatibilizer methyl methacrylate-butadiene-styrene copolymer MBS: 150g

[0114] Coupling agent KH-550: 5g

[0115] Other additives combination (including EBS, calcium stearate, silicone powder, calcium montanate, talc, antioxidant 1098): 125g

[0116] See Example 1 for sample preparation and testing procedures. See Table 1 for relevant test results.

Embodiment 3

[0118] Polyamide 56 (PA56, relative viscosity of 96% sulfuric acid is 2.72): 1467.5g

[0119] Hollow glass microspheres (particle size 56μm, true density 0.32g / cm 3 , Compression 13.78MPa): 750g

[0120] Flame retardant decabromodiphenylethane: 700g

[0121] Flame retardant synergist antimony trioxide: 150g

[0122] Flame retardant synergist zinc oxide: 150g

[0123] E-glass fiber: 1500g

[0124] Compatibilizer MBS: 150g

[0125] Coupling agent KH-550: 7.5g

[0126] Other additives combination (including EBS, calcium stearate, silicone powder, calcium montanate, talc, antioxidant 1098): 125g

[0127] See Example 1 for sample preparation and testing procedures. See Table 1 for relevant test results.

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Abstract

The invention discloses a preparation method of a lightweight flame-retardant reinforced polyamide composition and a composite material thereof. The polyamide composition comprises the following components by weight: polyamide resin: 25-65 parts by weight, flame retardant: 8-18 parts by weight, flame retardant synergist: 3-8 parts by weight, alkali-free glass fiber: 20-40 parts by weight, modified hollow inorganic powder: 3-27 parts by weight, and, compatibilizer: 1- 10 parts by weight; Wherein, polyamide resin comprises polyamide 5X resin. The polyamide composition of the present invention, under the premise of reducing the density of the polyamide composite material, improves the mechanical properties, heat resistance, flame retardancy, etc. of the composite material. The improvement of density and the improvement of mechanical properties of reinforced polyamide are inseparable. The lightweight flame-retardant reinforced polyamide composition of the present invention endows polyamide composite materials with new properties and can be used for automotive instrument panels, architectural decoration, electronic Electrical and other fields.

Description

technical field [0001] The invention relates to a lightweight flame-retardant reinforced polyamide composition and a preparation method thereof. Background technique [0002] Polyamide refers to a polymer with amide-based repeating units in the polymer chain, which has good comprehensive properties, such as: high strength and toughness, high heat resistance, wear resistance, chemical resistance, and self-lubrication , self-extinguishing, easy processing and other characteristics, it is one of the main polymer materials to realize the concept of "replacing steel with plastic". Since the 1950s, a series of polyamide engineering plastics with more excellent properties have been developed through polymer modification methods, and the application fields have been continuously expanded. [0003] Polyamide modification is a hot research topic nowadays. Obtaining a new material with special properties through modification is a relatively low-cost, simple and direct method compared...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L51/04C08L33/02C08K13/06C08K9/10C08K9/06C08K7/28C08K5/03C08K3/22C08K3/38C08K7/14B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704C08K2201/003C08L77/02C08L2201/02C08L2205/03C08L51/04C08K13/06C08K9/10C08K9/06C08K7/28C08K5/03C08K7/14
Inventor 张洪生胡定军张志海刘修才
Owner CATHAY R&D CENT CO LTD