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Composite flame retardant in bromine series, preparation method and application

A technology of composite flame retardant and brominated flame retardant, which is applied in the direction of fireproof coatings, etc., can solve the problems of large amount of smoke and molten droplets, and achieve good tensile and impact properties, and good flame retardant effects

Inactive Publication Date: 2007-05-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-efficiency bromine-based composite flame retardant that can be applied to polyolefin resins in order to overcome the shortcomings of existing polyolefin resins such as polyethylene and polypropylene plastics, which are extremely flammable and have a large amount of smoke and serious droplet phenomena. agent, so that the resin material meets the requirements of flame retardancy, smoke suppression, and anti-droplet, so as to ensure the normal use of the items inside the outer packing box and prevent the spread of fire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Take polypropylene as 100 parts by weight of 23 parts of brominated composite flame retardants, including 8 parts of octabromoether, 4 parts of heat-stable hexabromocyclododecane, 6 parts of organic montmorillonite, 5 parts of trioxide Diantimony, baked in a blast drying oven for 5 hours, the temperature is controlled at 80°C. Add the above-mentioned dried material into a high-speed mixer, and simultaneously take 4%wt titanate coupling agent (NDZ-101) of the total weight of the brominated flame retardant, antimony trioxide and anti-dripping agent, Add it into a high-speed mixer while stirring, and mix at a high speed for 10 minutes at 1000 rpm and 70°C to obtain the brominated composite flame retardant. 100 parts by weight of polypropylene are added into a high-speed mixer for high-speed mixing with the brominated composite flame retardant. The mixed pellets are fed into the main feeding port of the twin-screw extruder, and the temperature of the first to seventh zones...

Embodiment 2

[0041] Octabromoether was changed into decabromodiphenylethane in Example 1, and all the other conditions were the same as in Example 1. After the pellets were prepared according to the preparation method of Example 1, a standard sample was obtained by injection molding in an injection molding machine, and various mechanical property tests were carried out. The results are shown in Table 1.

Embodiment 3

[0043] Change the brominated composite flame retardant in Example 1 to 28 parts, wherein 9 parts of decabromodiphenylethane, 7 parts of heat-stable hexabromocyclododecane, 6 parts of organic montmorillonite, 6 parts of antimony trioxide Part, all the other conditions are identical with embodiment 1. After the pellets were prepared according to the preparation method of Example 1, a standard sample was obtained by injection molding in an injection molding machine, and various mechanical property tests were carried out. The results are shown in Table 1.

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Abstract

This invention provides a method for preparing brominated composite flame retardant and its application. The brominated composite flame retardant comprises: brominated flame retardant 100 parts, synergistic flame retardant 30-45 parts, and anti-melting drop 30-60 parts. The brominated flame retardant is a mixture of decabromodiphenyl ethane or octabromo ether and heat-stable hexabromocyclododecane at a weight ratio of (2:1)-(1:2). The synergistic flame retardant is antimony trioxide. The anti-melting drop is one or more of organic montmorillonite, kaolin and clay. The method comprises: adequately mixing the above components according to the formula. The brominated composite flame retardant has a flame retardant grade up to V-0 without melting drop when used in flame retardant modification of polyolefin plastics. Besides, the brominated composite flame retardant has good mechanical properties, and can be used as packaging material for military products and electronic products.

Description

Technical field: [0001] The present invention relates to a novel halogen-containing flame retardant composition applicable to polyolefin plastics, and furthermore, relates to a brominated composite flame retardant and its preparation method and its flame-retardant modification in polyolefin plastics Applications. Background technique: [0002] In the actual use of resin materials, in terms of their flame retardant performance, in many cases, the material is required to be flame retardant and flame retardant. As we all know, polyolefin plastics are the most widely used general-purpose plastics in the world at present. They are light in weight, non-toxic, have excellent electrical insulation performance, chemical corrosion resistance and mechanical strength, convenient molding and processing, and relatively low price. Therefore, it is widely used in electrical appliances, chemicals, machinery, textiles, construction, furniture, food packaging, military and other industries. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K21/08C08K5/03C08L23/00
Inventor 臧充光焦清介吴中伟刘帅杨化浩
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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