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Halogen-free phosphor-free environmental protection inflaming retarding polyamide resin and preparation method thereof

A polyamide resin and polyamide technology, applied in the field of polyamide resin materials, can solve the problems of large addition of inorganic hydroxide flame retardants, great influence and damage on physical and mechanical properties, and strong corrosion that limits wide application, etc., to achieve Low cost, low production cost, low impact effect

Inactive Publication Date: 2007-12-12
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the ROHS directive (The Restriction of the use of certain Hazardous substances in Electrical and Electronic Equipment) and the WEEE directive (Waste from Electrical and Electronic Equipment Waste from Electrical and Electronic Equipment) issued by the European Union, the bromine series Flame retardants are gradually withdrawing from the market; phosphorus flame retardants are highly corrosive to molds, which greatly limits their wide application; inorganic hydroxide flame retardants are added in a large amount, have poor compatibility with polyamides, and are harmful to materials. The physical and mechanical properties have great influence and damage, which makes the material lose a lot of use value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The weight ratio is PA66---79.7%, PA6---10%, 493D---4.5%, MCA---5%, CAV102---0.3%, 1010---0.2%, H3373--- 0.3% was pre-mixed in a medium-speed mixer for 3 minutes at room temperature, then added a flame retardant and mixed for 5 minutes, and then melted, extruded, and granulated to form a composite material. Twin-screw first zone temperature is 220°C, second zone temperature is 240°C, third zone temperature is 260°C, fourth zone temperature is 270°C; residence time in barrel is 1.5 minutes, melt pressure is 16MPa.

Embodiment 2

[0029] The weight ratio is PA66---74.7%, PA6---10%, 493D---4.5%, MCA---10%, CAV102---0.3%, 1010---0.2%, H3373--- 0.3% was pre-mixed in a medium-speed mixer for 3 minutes at room temperature, then added a flame retardant and mixed for 5 minutes, and then melted, extruded, and granulated to form a composite material. Twin-screw first zone temperature is 220°C, second zone temperature is 240°C, third zone temperature is 260°C, fourth zone temperature is 270°C; residence time in barrel is 1.5 minutes, melt pressure is 16MPa.

Embodiment 3

[0031] The weight ratio is PA66---69.7%, PA6---10%, 493D---4.5%, MCA---15%, CAV102---0.3%, 1010---0.2%, H337 3-- -0.3% Pre-mixed at room temperature in a medium-speed mixer for 3 minutes, then added flame retardant and mixed for 5 minutes, then melt-extruded and granulated to make a composite material. Twin-screw first zone temperature is 220°C, second zone temperature is 240°C, third zone temperature is 260°C, fourth zone temperature is 270°C; residence time in barrel is 1.5 minutes, melt pressure is 16MPa.

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Abstract

The invention discloses a non- halegeno and non- phosphorus phpolyamide resin and the preparation method. The comprised raw material of phpolyamide resin and their proportion are as follows: polyamide 68- 92%, melamine cyanurate 5- 15%, flexibilizer 2- 15%, anti-oxidant0.1- 1%, heat stabilizer 0.1- 2%, crystallizing promoter 0.1- 2%. The product is characterized by good physical property, outstanding flame proof performance, low raw material price, simple preparation process and low production cost.

Description

[technical field] [0001] The invention relates to a polyamide resin material, in particular to a halogen-free, phosphorus-free, environment-friendly and flame-retardant polyamide resin and a preparation method thereof. [Background technique] [0002] Polyamide resin (polyamide referred to as PA), as the first of the five major engineering plastics, its performance characteristics are: high mechanical strength, high softening point, good heat resistance, wear resistance, self-lubrication, shock absorption and noise reduction, oil resistance, Weak acid resistance, alkali resistance, and good electrical insulation, so polyamide is the preferred material for electronic and electrical components, and this type of product has high requirements for the flame retardancy of the material. The oxygen index of polyamide is about 25%, only It can reach the UL94-V2 level, which obviously cannot meet the requirements. Therefore, it is necessary to perform flame retardant treatment on poly...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08K5/3492B29C47/40B29C47/92B29C48/40B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C2948/92514B29C2948/92561B29C2948/92895
Inventor 徐东贺永迟宏宇
Owner SHENZHEN KEJU NEW MATERIAL
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