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Toughened flame-retarded poly propylene composition and its preparing method

A polypropylene composition and flame-retardant polypropylene technology are applied in the field of modified polypropylene to achieve the effects of good fluidity, good application prospects and easy injection molding

Active Publication Date: 2005-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The inventor believes that the key to preparing flame-retardant polypropylene materials by filling polypropylene resin with inorganic flame retardants is to solve the compatibility problem between the main resin of organic polymer polypropylene and polar inorganic flame retardants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0022] Polypropylene (PP2401, produced by Beijing Yanshan Petrochemical Co., Ltd.), octene-ethylene grafted with glycidyl methacrylate (POE-g-GMA, produced by Beijing Research Institute of Chemical Industry), ammonium polyphosphate (APP, produced by Clariant Chemical Group), antioxidant 1010 (Swiss Ciba), calcium stearate (Beijing Changyang Farm Chemical Factory), put into a low-speed mixer and stir evenly, so that each component is fully mixed evenly. Wherein, based on 100 parts by weight of the polypropylene resin, the antioxidant is 0.15 parts, and the calcium stearate is 0.3 parts. Then the above mixed material was extruded and granulated in a twin-screw (ZSK-25, WP Company, Germany) at 180-230°C. The extruded pellets were dried in a constant temperature oven at 80°C for 6 hours, and then injected into standard specimens at a temperature of 190-220°C for various mechanical property tests. The specific formula is shown in Table 1, wherein the content of each component is b...

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PUM

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Abstract

The invention relates to a kind of platicizing and antiflaming polypropylene combination and its manufacturing method. The polypropylene combination contains polypropylene resin with 100 part by weight, grafts with 1-20 part by weight, and ammonium polyphosphate with 15-75 part by weight. Among them, the grafts are grafts of thermoplastic elastomer and polar monomer, and its percent grafting is 0.5-8.0%. Using the grafts to modify polypropylene resin of ammonium polyphosphate antiflaming can improve fire retardancu of polypropylene resin while improving tenacity of it greatly, so it adapts to extremely extensive fields.

Description

technical field [0001] The present invention relates to a modified polypropylene, more particularly to a toughened flame-retardant polypropylene resin composition and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a large variety of plastics with a large quantity and a wide range, and it is also one of the most promising engineering plastic varieties in general plastics, and has been widely used in daily necessities, transportation, machinery, electrical and electronic industries, etc. . However, PP is extremely flammable. For safety considerations, relevant departments have imposed stricter flame retardant regulations on applications in some application fields, such as household appliances and building materials. Generally speaking, at this stage, it is mainly by adding flame retardants to the PP resin matrix to reduce its flame retardancy and delay its burning speed. [0003] So far, the vast majority of flame-retardant products related...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/32C08L23/12
Inventor 吕明福张师军张薇邵静波尹华吕芸王小兰段淑清李魁张丽英武志军张浩
Owner CHINA PETROLEUM & CHEM CORP
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