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Halogen-free flame-retardant nylon composite material

A nylon composite material and flame retardant technology, applied in the field of halogen-free flame retardant nylon composite materials, can solve the problems of secondary harm, endangering the human body, and a large amount of acid smoke, and achieve the effect of excellent impact resistance

Inactive Publication Date: 2016-09-07
TONGCHENG ZHONGHUI PLASTIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]In order to improve the flame retardancy of nylon materials, halogen flame retardants are usually added to the formula. Although this halogen flame retardant can play a good flame retardant However, when the material is burned, a large amount of acid fumes will be produced, which will cause secondary hazards and endanger the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A halogen-free flame-retardant nylon composite material, weighed according to the raw materials in parts by weight: 10 parts of caprolactam, 90 parts of PA66 resin, 15 parts of PA6 resin, 5 parts of silicon carbide; 6 parts of melamine polyphosphate, acrylonitrile-butylene 10 parts of diene-styrene copolymer, 5 parts of dioctyl maleate, 5 parts of di-n-hexyl azelate, 1 part of modified nano-rare earth oxide, 2 parts of microencapsulated halogen-free flame retardant, accelerator 0.6 parts, 0.5 parts of activator, 0.5 parts of stabilizer, 3 parts of lead fumarate.

[0015] Prepare according to the following steps: (1) Weigh the above-mentioned raw materials according to the weight ratio, add them to a high-speed mixer and blend them for 5 minutes to obtain a mixture;

[0016] (2) the mixture obtained by step (1) is extruded through an extruder, cooled, pelletized and screened to obtain a nylon composite material; in the step (2), the process parameters of the twin-screw e...

Embodiment 2

[0018] A halogen-free flame-retardant nylon composite material, weighed according to the raw materials in parts by weight: 8 parts of caprolactam, 85 parts of PA66 resin, 10 parts of PA6 resin, 6 parts of silicon carbide; 7 parts of melamine polyphosphate, acrylonitrile-butylene 12 parts of diene-styrene copolymer, 8 parts of dioctyl maleate, 6 parts of di-n-hexyl azelate, 1 part of modified nano-rare earth oxide, 1 part of microencapsulated halogen-free flame retardant, accelerator 0.1 parts, 0.3 parts of activator, 0.3 parts of stabilizer, 2-3 parts of lead fumarate.

[0019] Prepare according to the following steps: (1) Weigh the above-mentioned raw materials according to the weight ratio, add them to a high-speed mixer and blend them for 5 minutes to obtain a mixture;

[0020] (2) the mixture obtained by step (1) is extruded through an extruder, cooled, pelletized and screened to obtain a nylon composite material; in the step (2), the process parameters of the twin-screw e...

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PUM

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Abstract

The invention relates to a halogen-free flame-retardant nylon composite material, and belongs to the technical field of high polymer materials. The halogen-free flame-retardant nylon composite material is prepared from, by weight, 5-10 parts of caprolactam, 70-90 parts of PA66 resin, 5-15 parts of PA6 resin, 5-8 parts of silicon carbide, 6-11 parts of melamine pyrophosphate, 10-15 parts of acrylonitrile-butadiene-styrene copolymers, 5-10 parts of dioctyl maleate, 5-10 parts of di-n-hexyl azelate, 0.2-3 parts of modified nanometer rare earth oxides, 1-5 parts of microencapsulated halogen-free flame retardant, 0.1-0.6 part of accelerator, 0.1-0.5 part of activator, 0.1-0.5 part of stabilizer and 2-3 parts of lead fumarate. The halogen-free flame-retardant nylon composite material has the following performance indexes that the tensile strength is larger than 140 MPa, the bending strength is larger than 220 MPa, the impact strength of a cantilever beam notch is larger than 24 kj / m<2>, the melt flow index is larger than 16 g / 10 min, and the flame retardance reaches V-0(UL-94-1.6 mm). The high-temperature-resistant halogen-free flame-retardant nylon composite material not only has the barrier property, the dimensional stability, chemical resistance and high temperature resistance of high-temperature-resistant nylon, but also has the excellent impact resistance, flowability and flame retardant property.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a halogen-free flame-retardant nylon composite material. Background technique [0002] In order to improve the flame retardancy of nylon materials, halogen-based flame retardants are usually added to the formula. Although this halogen-based flame retardant can play a good flame-retardant effect, it will produce a large amount of acid smoke when the material is burned, causing Secondary hazards and endanger the human body. Therefore, halogen-containing nylon is gradually being ignored by people because it is not environmentally friendly. In view of this, it undoubtedly has positive practical significance for the development of halogen-free flame-retardant nylon materials, and the technical solutions to be introduced below are produced on this premise. Contents of the invention [0003] The object of the present invention is to provide a halogen-free flame...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L77/02C08L55/02C08K13/06C08K9/10C08K3/34C08K5/3492C08K9/00C08K3/22C08K3/02C08K3/32
CPCC08L77/06C08K2201/003C08K2201/011C08L2201/02C08L2201/08C08L2201/22C08L2205/02C08L2205/03C08L77/02C08L55/02C08K13/06C08K9/10C08K3/34C08K5/34922C08K9/00C08K2003/221C08K2003/026C08K2003/323
Inventor 潘卫兵
Owner TONGCHENG ZHONGHUI PLASTIC IND CO LTD
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