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Thermoplastic resin composition and application thereof

A thermoplastic resin and composition technology, applied in the direction of synthetic resin layered products, flame-retardant fibers, layered products, etc., can solve the problems of poor flame-retardant effect, impact on basic performance of thermoplastic resin, and decline in mechanical properties, and achieve improved High temperature stability and flame retardant performance, the effect of reducing the effect of high temperature oxidation

Active Publication Date: 2021-03-12
SHENZHEN ACAD OF AEROSPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame retardant effect of the unit dose of halogen-free flame retardants is poor. In order to meet the corresponding flame retardant performance, it must be added in large quantities, which will affect the basic properties of thermoplastic resins.
For example, for carbon fiber reinforced thermoplastic resin composites, when the addition amount of halogen-free flame retardant is large, the mechanical properties will decrease significantly

Method used

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  • Thermoplastic resin composition and application thereof
  • Thermoplastic resin composition and application thereof
  • Thermoplastic resin composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a kind of thermoplastic resin composite material, the preparation method of this composite material comprises the following steps:

[0047] (1) Preparation of modified carbon fiber

[0048] The carbon fiber is impregnated in the surface modifier solution (the number-average molecular weight of the thermoplastic phosphorus-containing epoxy resin is about 10000, and the phosphorus content is 15wt%) in the concentration of 1wt%, and the wire speed is 2cm / s, and then enters the oven to dry Dry at a temperature of 150°C for 5 minutes, and finally wind up to obtain modified carbon fibers.

[0049] (2) Preparation of thermoplastic resin film

[0050] The nylon resin of 100g, the phosphorus-nitrogen compound of 30g (melamine phosphate and melamine cyanurate each 15g), the hydrotalcite of 10g, the zinc borate of 10g, the anti-oxidant of 0.5g are added in the extruder and mix uniformly, and Feed into the mold to obtain a uniform thermoplastic resin film...

Embodiment 2

[0054] This embodiment provides a kind of thermoplastic resin composite material, the preparation method of this composite material comprises the following steps:

[0055] (1) Preparation of modified carbon fiber

[0056] The carbon fiber is impregnated in the surface modifier solution (the number-average molecular weight of the thermoplastic phosphorus-containing epoxy resin is about 10000, and the phosphorus content is 15wt%) in the concentration of 1wt%, and the wire speed is 2cm / s, and then enters the oven to dry Dry at a temperature of 150°C for 5 minutes, and finally wind up to obtain modified carbon fibers.

[0057] (2) Preparation of thermoplastic resin film

[0058] 100g of nylon resin, 30g of melamine cyanurate, 10g of hydrotalcite, 10g of zinc borate, and 0.5g of antioxidant were added to the extruder and mixed evenly, and fed into a mold to obtain a uniform thermoplastic resin film.

[0059] (3) Preparation of composite materials

[0060] The modified carbon fib...

Embodiment 3

[0062] This embodiment provides a kind of thermoplastic resin composite material, the preparation method of this composite material comprises the following steps:

[0063] (1) Preparation of modified carbon fiber

[0064] The carbon fiber is impregnated in the surface modifier solution (the number-average molecular weight of the thermoplastic phosphorus-containing epoxy resin is about 10000, and the phosphorus content is 15wt%) in the concentration of 1wt%, and the wire speed is 2cm / s, and then enters the oven to dry Dry at a temperature of 150°C for 5 minutes, and finally wind up to obtain modified carbon fibers.

[0065] (2) Preparation of thermoplastic resin film

[0066] The nylon resin of 100g, the phosphorus-nitrogen compound of 20g (melamine phosphate and melamine cyanurate each 10g), the hydrotalcite of 10g, the zinc borate of 5g, the anti-oxidant of 0.5g are added in the extruder and mix uniformly, and Feed into the mold to obtain a uniform thermoplastic resin film....

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Abstract

The invention discloses a thermoplastic resin composition and application thereof. The thermoplastic resin composition comprises thermoplastic resin, a halogen-free flame retardant and modified carbonfibers, wherein the modified carbon fibers comprise carbon fibers modified by thermoplastic epoxy resin. According to the embodiment of the invention, the thermoplastic resin composition at least hasthe following beneficial effects: after the thermoplastic epoxy resin is used as a modifier to modify the carbon fiber, the compatibility of the modified carbon fiber and the thermoplastic resin is greatly improved; the thermoplastic resin can be more fully infiltrated into the surface of the modified carbon fiber in the processing process, so that the interface property of a resin matrix and thecarbon fiber is prevented from being greatly weakened when the addition amount of the halogen-free flame retardant is relatively large, and the mechanical property is further prevented from being reduced, thereby enabling the material to have good flame retardance and mechanical property at the same time.

Description

technical field [0001] The invention relates to the technical field of resin materials, in particular to thermoplastic resin compositions and applications thereof. Background technique [0002] With the development of new energy vehicles and electronic appliances, auto parts and electronic devices have put forward higher requirements for the mechanical properties, electrical properties, and heat resistance of materials. Thermoplastic resins are easy to form and have shown greater advantages over thermosetting resins in terms of multiple molding and recycling. Reinforced thermoplastic materials have improved heat resistance and are more excellent in abrasion and impact resistance. The performance, high molding efficiency, and high cost performance can meet the related needs of auto parts and electronic devices, but there is still a lot of room for improvement in its flame retardancy. [0003] Halogen flame retardants will produce a large amount of harmful gases during the co...

Claims

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Application Information

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IPC IPC(8): B32B9/00B32B9/04B32B27/34B32B27/40C08L77/00C08L75/04C08K5/3492C08K3/26C08K3/38C08K13/02C08J5/18D06M15/555D06M101/40
CPCB32B5/02B32B27/34B32B27/40B32B27/12C08J5/18D06M15/555B32B2262/106B32B2250/42B32B2307/50B32B2307/3065C08J2377/00C08J2375/04C08K5/34928C08K5/34924C08K3/26C08K2003/387C08K13/02D06M2101/40D06M2200/30
Inventor 晏义伍朱敏杰李常胜
Owner SHENZHEN ACAD OF AEROSPACE TECH
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