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Preparation method of high-gloss high-rigidity no-precipitate environment-friendly flame-retardant polypropylene

A flame-retardant polypropylene, high-rigidity technology, applied in the field of high gloss, can solve the problems of large amount of addition, easy decomposition of flame retardants, difficult processing, etc., and achieve good flame retardancy, good processing performance, and good heat resistance. Effect

Inactive Publication Date: 2011-07-06
FOSHAN SHUNDE WHEELING PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large amount added, it greatly affects the physical properties of the material
[0005] 2. The chlorine-based flame retardant polypropylene has insufficient thermal stability of the flame retardant itself, the flame retardant is easy to decompose, and the processing is quite difficult

Method used

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  • Preparation method of high-gloss high-rigidity no-precipitate environment-friendly flame-retardant polypropylene
  • Preparation method of high-gloss high-rigidity no-precipitate environment-friendly flame-retardant polypropylene
  • Preparation method of high-gloss high-rigidity no-precipitate environment-friendly flame-retardant polypropylene

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Embodiment example 1

[0020] 45kgPPV30G, 45kgPP370Y, 4kg octabromoether flame retardant, 2kg antimony trioxide, grafted PP3kg, 8kgEVA, 0.3KG calcium stearate, 0.2kg PE wax, 0.2kg of 1010 / 168 in a 1:2 mixture, 0.3kg of white oil is mixed evenly in a high-speed mixer, and then extruded, cooled, pelletized, and made of flame-retardant polypropylene with a twin-screw extruder at a speed of 350-400 rpm and 180-200°C, and then molded. The spline properties are as follows:

[0021]

[0022]

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Abstract

The invention aims to provide a high-flame-retardancy high-gloss high-rigidity low-precipitate low-cost flame-retardant polypropylene which is easy to process and a preparation method thereof. The technical scheme adopted by the invention is as follows: the flame-retardant polypropylene is prepared from the following components in percentage by weight: 45% of polypropylene homopolymer, 45% of polypropylene copolymer, 4% of flame retardant, 2% of synergistic flame retardant, 8% of compatilizer, 0.5% of lubricant, 0.2% of antioxidant and other processing assistants. Compared with the prior art, the invention has the following effects: 1. the flame-retardant polypropylene has favorable flame retardancy, and can not produce precipitate; 2. the heat resistance of the flame retardant is good, the processability of the product is fine, and the influences on the mechanical properties of the flame-retardant polypropylene, such as toughness, strength and the like, are small due to the low addition amount of the flame retardant; 3. the flame-retardant polypropylene can not generate polybrominated dibenzodioxin (PBDD), polybrominated dibenzofuran (PBDF) and other carcinogenic substances, thereby being relatively environment-friendly; and 4. due to the adoption of the compatilizer, the flame-retardant polypropylene has high precipitation resistance and high surface gloss.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant polypropylene with high gloss, high rigidity and no precipitation and a preparation method thereof. Background technique [0002] Polypropylene (PP) has become one of the most important general-purpose plastics because of its excellent comprehensive properties, wide sources, light weight and low price, and easy molding and processing. However, polypropylene is extremely flammable, and its oxygen index is only 17.0%-18%. , it cannot self-extinguish after being caught on fire, so it must be flame-retardant modified to broaden its application field. [0003] The flame retardant polypropylene currently on the market has the following defects: [0004] 1. Halogen-free flame-retardant polypropylene mainly improves the flame-retardant performance of polypropylene by adding P-N expansion type, metal hydroxide, expanded graphite, coated red phosphorus, and org...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L51/06C08L23/08C08L33/08C08L31/04C08L75/04C08K13/02C08K5/06C08K5/372C08K5/02C08K3/22C08K3/38B29B9/06
Inventor 余徐南
Owner FOSHAN SHUNDE WHEELING PLASTIC
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