Polypropylene composite material with low volatile organic compound (VOC), high strength and flame retardance and preparation method thereof

A flame retardant polypropylene and composite material technology, applied in the field of flame retardant composite materials, can solve problems such as harming human health, affecting the mechanical properties of composite materials, human body and environmental hazards, etc., achieving low VOC, simple and easy preparation process, and improving The effect of scratch resistance

Active Publication Date: 2017-09-08
ZHONGSHAN DIANSHI PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) The addition of halogen-containing flame retardants is harmful to the human body and the environment;
[0004] 2) To achieve V-0 flame retardant effect, more than 20% flame retardant needs to be added, which seriously affects the mechanical properties of composite materials;
[0005] 3) Organic volatiles continue to volatilize during the use of composite materials, endangering human health

Method used

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  • Polypropylene composite material with low volatile organic compound (VOC), high strength and flame retardance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Low-VOC, high-strength, flame-retardant polypropylene composite material, its raw materials are composed of the following components in parts by weight: 66 parts of copolymerized polypropylene, 16 parts of homopolypropylene, 4 parts of tantalum carbide (the average particle size is preferably 20 ~200 nanometers, specific surface area 12~38m 2 / g), 6 parts of tantalum hydroxide (average particle size is 55-260 microns, aspect ratio is 120:1-220:1, specific surface area is 2-8m 2 / g), 4 parts of glass fiber, 3 parts of POE elastomer, 0.3 part of silane coupling agent KH560, 0.5 part of anti-dripping agent polytetrafluoroethylene, 0.2 part of antioxidant tetrakis[β-(3,5-ditertiary Butyl-4-hydroxyphenyl) propionate] pentaerythritol ester.

[0029] The preparation method is as follows:

[0030] 1) The coupling agent is formulated into a coupling agent ethanol solution of 1 to 3 wt%, and the dosage of the coupling agent is 0.15% of the weight of the tantalum carbide; the ta...

Embodiment 2

[0039] Low-VOC, high-strength, flame-retardant polypropylene composite material, its raw materials are composed of the following components in parts by weight: 56 parts of copolymerized polypropylene, 21 parts of homopolypropylene, 8 parts of tantalum carbide (the average particle size is preferably 20 ~200 nanometers, specific surface area 12~38m 2 / g), 10 parts of tantalum hydroxide (average particle size is 55-260 microns, aspect ratio is 120:1-220:1, specific surface area is 2-8m 2 / g), 1 part of glass fiber, 3 parts of SBS elastomer, 0.3 part of silane coupling agent KH560, 0.5 part of anti-dripping agent polytetrafluoroethylene, 0.2 part of antioxidant tetrakis[β-(3,5-ditertiary Butyl-4-hydroxyphenyl) propionate] pentaerythritol ester.

[0040] The preparation method is as follows:

[0041] 1) The coupling agent is formulated into a coupling agent ethanol solution of 1 to 3 wt%, and the dosage of the coupling agent is 0.15% of the weight of the tantalum carbide; the ta...

Embodiment 3

[0050]Low-VOC, high-strength, flame-retardant polypropylene composite material, its raw materials are composed of the following components in parts by weight: 72 parts of copolymerized polypropylene, 13 parts of homopolypropylene, 2 parts of tantalum carbide (the average particle size is preferably 20 ~200 nanometers, specific surface area 12~38m 2 / g), 3 parts of tantalum hydroxide (average particle size is 55-260 microns, aspect ratio is 120:1-220:1, specific surface area is 2-8m 2 / g), 6 parts of glass fiber, 3 parts of SEBS elastomer, 0.3 part of silane coupling agent KH560, 0.5 part of anti-dripping agent polytetrafluoroethylene, 0.2 part of antioxidant tetrakis[β-(3,5-ditertiary Butyl-4-hydroxyphenyl) propionate] pentaerythritol ester.

[0051] The preparation method is as follows:

[0052] 1) The coupling agent is formulated into a coupling agent ethanol solution of 1 to 3 wt%, and the dosage of the coupling agent is 0.15% of the weight of the tantalum carbide; the ta...

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Abstract

The invention relates to a polypropylene composite material with a low volatile organic compound (VOC), high strength and flame retardance and a preparation method thereof, and belongs to the technical field of flame-retardant composite materials. The polypropylene composite material with low VOC, high strength and flame retardance is characterized by being prepared from the following raw materials in parts by weight: 55 to 75 parts of polypropylene copolymers, 10 to 25 parts of polypropylene homopolymers, 2 to 8 parts of tantalum carbide, 3 to 10 parts of tantalum hydroxide, 1 to 8 parts of glass fibers, 1 to 5 parts of elastomers, 0.1 to 0.5 part of coupling agent, 0.1 to 1.5 parts of anti-dropping agent, and 0.1 to 0.3 part of antioxidant. According to the polypropylene composite material disclosed by the invention, by screening of particle size distribution, length to diameter ratio distribution and specific surface area distribution of tantalum-based filler, the uniformity of flame retardance and absorption effect of the volatile organic compound, surface etching and treatment of the filler, and preparation of rigid masterbatch and enhanced masterbatch are achieved, so that the polypropylene composite material has low VOC, UL-94V-0 level flame-retardant effect, extremely good scratch resistance and excellent mechanical property such as high rigidity.

Description

technical field [0001] The invention relates to a low-VOC, high-strength, flame-retardant polypropylene composite material and a preparation method thereof, belonging to the technical field of flame-retardant composite materials. Background technique [0002] Polypropylene is widely used as one of the five general-purpose plastics. However, polypropylene has a fatal disadvantage. Its oxygen index is very low (17.4), it is easy to burn, and the combustion calorific value is large, resulting in a large number of molten droplets. The flame spreads quickly and is not easy to extinguish. Flame-retardant polypropylene currently on the market has three major drawbacks. [0003] 1) The addition of halogen-containing flame retardants is harmful to the human body and the environment; [0004] 2) In order to achieve V-0 flame retardant effect, more than 20% of flame retardant should be added, which seriously affects the mechanical properties of composite materials; [0005] 3) Organ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L27/18C08L23/08C08L53/02C08K13/06C08K9/06C08K9/02C08K7/14C08K3/14C08K3/22C08K5/134
CPCC08K2201/003C08K2201/006C08K2201/011C08K2201/016C08L23/14C08L2201/02C08L2205/02C08L2205/035C08L23/12C08L27/18C08L23/0815C08L53/02C08L53/025C08K13/06C08K9/06C08K9/02C08K7/14C08K3/14C08K3/22C08K5/1345
Inventor 王可侯筱华
Owner ZHONGSHAN DIANSHI PLASTIC
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