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Environment-friendly flame-resistant PP material and preparation method thereof

An environmentally friendly, flame retardant technology, applied in the field of PP materials, can solve the problems of unsuitable electricity environment, low CTI value and GWIT value, etc., achieve high tracking index, improve processing fluidity, and short residence time Effect

Inactive Publication Date: 2017-12-08
RONGCHENG PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some traditional methods are (GF+decabromodiphenylethane+antimony trioxide) compound system, (GF+brominated polystyrene+antimony trioxide) compound system, but the CTI value and GWIT of these compound systems The value is not high, not suitable for high-demand electricity environment

Method used

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  • Environment-friendly flame-resistant PP material and preparation method thereof
  • Environment-friendly flame-resistant PP material and preparation method thereof
  • Environment-friendly flame-resistant PP material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 3

[0029] A preparation method of high efficiency, high GWIT, high CTI, low density, no precipitation, environment-friendly flame retardant PP material, characterized in that the method is as follows: Weigh the raw materials by weight: PP 93.3%, compound type resistance 3% of fuel, 3% of commercially available POE, 0.1% of antioxidant (1330), 0.6% of iron oxide; put into a high-mixer and mixed for 2 minutes, discharge the material, and then extrude and granulate with a twin-screw extruder, The processing temperature was at 220°C, and the number of screw revolutions was at 300 rpm.

[0030] The compounded flame retardant is compounded by our company and is made up of three components. Its mass percentage is calcium melamine: 50%; high potassium chloride chelate compound: 25%; magnesium sulfate crystal Must: 25%.

Embodiment 4

[0032] A preparation method of high efficiency, high GWIT, high CTI, low density, no precipitation, and environment-friendly flame retardant PP material, characterized in that the method is as follows: Weigh the raw materials by weight: PP 92%, compound type resistance 4% of fuel, 2% of commercially available POE, 1% of antioxidant (1330), 1% of iron oxide; put into a high-mixer and mixed for 5 minutes, discharge, and then extrude and granulate with a twin-screw extruder, The processing temperature was at 220°C, and the number of screw revolutions was at 400 rpm.

[0033] The compounded flame retardant is compounded by our company, and is made up of three components. Whiskers: 25%.

Embodiment 5

[0035] A preparation method of high efficiency, high GWIT, high CTI, low density, no precipitation, and environment-friendly flame retardant PP material, characterized in that the method is as follows: Weigh the raw materials by weight: PP 92%, compound type resistance 5% of fuel, 2% of commercially available POE, 0.5% of antioxidant (1330), 0.5% of iron oxide; put it into a high-mixer and mixed for 3 minutes, discharged, and then extruded and pelletized with a twin-screw extruder, The processing temperature was at 220°C and the number of screw revolutions was at 350 rpm.

[0036] The compounded flame retardant is compounded by our company and is made up of three components. Its mass percentage is calcium melamine: 50%; high chloride zinc chelate: 25%; magnesium sulfate crystal Must: 25%.

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Abstract

The invention relates to an environment-friendly flame-resistant PP material and a preparation method thereof. The material is prepared from the following components in parts by weight: 90 to 96 parts of PP, 1 to 5 parts of a compounded flame retardant, 2 to 10 parts of a flexibilizer, 0.1 to 1 part of an antioxidant, and 0.1 to 1 part of an oxide. The preparation method comprises the following steps: mixing the raw materials into a high temperature mixer for 2 to 5 minutes, discharging, then using a double screw extruder for extrusion pelletization, and ensuring that the processing temperature is 200 to 220 DEG C and the revolution of a screw is 300 to 400 rpm, so as to obtain the environment-friendly flame-resistant PP material. Compared with the prior art, the environment-friendly flame-resistant PP material has the advantages that the glowing filament temperature (GWIT) is high, the comparative tracking index (CPI) is high, and the material is environmentally friendly and balanced in comprehensive performance, and can be widely applied to fields of wall switches, sockets, pipes, molded case circuit breakers, motor components, plates and the like.

Description

technical field [0001] The invention relates to a PP material, in particular to an efficient, high GWIT, high CTI, low density, no precipitation, environment-friendly flame retardant PP material and a preparation method thereof. Background technique [0002] Polypropylene molecular formula: (C3H6)n, is a thermoplastic resin obtained by the polymerization of propylene. According to the arrangement of methyl groups, it is divided into three types: isotaetic polyprolene, atactic polypropylene and syndiotatic polypropylene. Non-toxic, tasteless, low density, strength, stiffness, hardness and heat resistance are better than low pressure polyethylene, can be used at about 100 ℃. Has good electrical properties and high frequency insulation is not affected by humidity. Suitable for making general mechanical parts, corrosion-resistant parts and insulating parts. Common organic solvents such as acids and alkalis have little effect on it, and can be used in tableware. In the 21st c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08K13/04C08K7/08C08K5/3492C08K3/16C08K3/22
CPCC08L23/12C08L2201/02C08L2203/18C08L2203/20C08L2205/02C08L23/0815C08K13/04C08K7/08C08K5/3492C08K3/16C08K2003/2272
Inventor 朱加荣虞敏
Owner RONGCHENG PIPE IND
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