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High-flame-retardant polypropylene material and preparation method thereof

A polypropylene material and high flame-retardant technology, which is applied in the field of high flame-retardant polypropylene material and its preparation, can solve the problems of great influence on the mechanical properties of materials, poor resistance to precipitation of flame retardants, and reduced heat resistance, etc., to achieve Improve fluidity and flame retardant performance, good flame retardant effect, good heat resistance effect

Inactive Publication Date: 2016-03-09
GUANGDONG JUSHI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional halogen-antimony system flame retardant polypropylene material, the flame retardant system has a great influence on the mechanical properties of the material, such as greatly reduced toughness, reduced heat resistance (heat distortion temperature, ball pressure temperature reduced), in addition, due to the added flame retardant The amount of the flame retardant is relatively large, resulting in relatively poor precipitation resistance of the flame retardant

Method used

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  • High-flame-retardant polypropylene material and preparation method thereof
  • High-flame-retardant polypropylene material and preparation method thereof

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preparation example Construction

[0066] The preparation method of the high flame-retardant polypropylene material corresponding to above-mentioned formula or preferred formula, comprises the following steps:

[0067] 1) Prepare homopolypropylene powder, brominated flame retardant, antimony flame retardant, flame retardant synergist, cooling masterbatch, toughening agent, lubricant, ultraviolet absorber and antioxidant according to the ratio Then add to the horizontal mixing tank, pre-mix at 50-60°C for 20-50 minutes, fully pre-mix evenly, and then divide and pack according to actual production needs;

[0068] 2) Put the homopolymer polypropylene pellets and the pre-mixed uniform material in step 1) into the high-speed mixing tank, and stir for 1-2 minutes;

[0069] 3) Put the material into a twin-screw extruder, carry out high-temperature mixing and shearing, and then draw strands and pelletize after water cooling to obtain a high flame-retardant polypropylene material.

[0070] Preferably, the screw diamete...

Embodiment 1

[0083] A high flame-retardant polypropylene material, which is composed of the following raw materials measured in parts by weight: homopolypropylene pellets: 63 parts; homopolypropylene powder: 15 parts; brominated flame retardant tetrabromobisphenol A : 13 parts; antimony-based flame retardant antimony trioxide: 3 parts; flame retardant synergist magnesium hydroxide: 1 part; cooling masterbatch LV-20: 3 parts; toughening agent styrene-butadiene thermoplastic elastomer Body: 1 part; lubricant stearic acid: 0.5 part; ultraviolet absorber UV-234: 0.2 part; antioxidant 2,6-tertiary butyl-4-methylphenol: 0.3 part. The performance test results of the high flame-retardant polypropylene material are shown in Table 2.

Embodiment 2

[0085] A high flame-retardant polypropylene material, which is composed of the following raw materials measured in parts by weight: homopolypropylene pellets: 64 parts; homopolypropylene powder: 9 parts; brominated flame retardant decabromodiphenylethylene Alkane: 15 parts; antimony-based flame retardant antimony pentoxide: 6 parts; flame retardant synergist magnesium aluminum hydrotalcite: 2 parts; cooling masterbatch LV-20: 1 part; toughening agent methyl methacrylate- Butadiene-styrene terpolymer: 1 part; lubricant ethylene bisstearamide: 1 part; ultraviolet absorber UV-328: 0.5 part; antioxidant bis(3,5-tertiary butyl- 4-hydroxyphenyl)sulfide: 0.5 parts. The performance test results of the high flame-retardant polypropylene material are shown in Table 2.

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Abstract

The invention discloses a high-flame-retardant polypropylene material and a preparation method thereof. The material is composed of the following raw materials in parts by mass: 60-75 parts of homo-polypropylene aggregates, 5-15 parts of homo-polypropylene powder, 10-20 parts of a brominated flame retardant, 3-8 parts of an antimony flame retardant, 1-3 parts of a flame retardant synergist, 0-10 parts of a cooling master batch, 0-3 parts of a flexibilizer, 0-1 part of a lubricant, 0-1 part of an ultraviolet light absorber, and 0-1 part of an antioxidant. The preparation method of the material comprises the following steps: 1) uniformly mixing all materials in certain proportion; and 2) adding the obtained mixture into a twin-screw extruder, carrying out high-temperature mixing and shearing, and after the obtained object is subjected to water cooling, sequentially carrying out bracing and grain-sized dicing, so that the high-flame-retardant polypropylene material is obtained. The high-flame-retardant polypropylene material disclosed by the invention is excellent in flame resistance, good in self-extinguishment, excellent in aging resistance, good in insulating property and heat resistance, not easy to deform by heating, excellent in processing fluidity, and easy to shape.

Description

technical field [0001] The invention relates to a high flame-retardant polypropylene material and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] Polypropylene is one of the five general-purpose resins. It has excellent properties such as light weight, easy processing, and chemical resistance. It is widely used in chemical, electrical, packaging and other industrial fields. However, with the increasing demand for polypropylene in industries such as construction, automobiles, ships, and electrical and electronic insulation materials, people's requirements for its flame retardancy are also increasing. Polypropylene itself is a flammable material, its oxygen index is only 17% to 18%, and its carbon formation rate is low, and it is easy to produce molten droplets when burning, which will cause the surrounding combustibles to ignite, so it is required in many applications It is flame retardant modified. [0003] At presen...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L25/10C08L51/04C08K13/02C08K5/13C08K3/22C08K5/09C08K5/14C08J3/22B29C47/92B29C48/92
CPCC08L23/12B29C48/92B29C2948/92209C08J3/226C08J2323/12C08J2423/12C08K2201/011C08K2201/014C08L2201/02C08L2201/08C08L2205/025C08L2205/03C08L2205/035C08L25/10C08K13/02C08K5/13C08K2003/2224C08K3/2279C08K5/09C08K5/14C08L51/04C08K5/03C08K3/26C08K5/20C08L55/02C08L23/286C08K5/34924C08K3/24C08K5/372C08K5/521C08L83/04C08K5/06C08K2003/2227C08K5/526
Inventor 沈旭渠陈锐彬蔡智勇杨杰张翼翔姚杏梅李玲珏
Owner GUANGDONG JUSHI CHEM CO LTD
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