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Reinforced toughening flame-proof polyolefin resin composition and its preparation method

A polyolefin resin, strengthening and toughening technology, applied in the field of flame retardant polyolefin resin composition, can solve the problems of large amount of flame retardant additives, large product shrinkage, large surface resistivity, etc. Good flame retardant effect, good comprehensive performance effect

Inactive Publication Date: 2007-05-16
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) It is a non-polar polymer and has poor compatibility with inorganic materials;
[0004] 2) Insufficient rigidity and notched impact strength;
[0005] 3) The problem of being extremely flammable;
[0006] 4) The problem of high low temperature brittleness;
[0007] 5) The disadvantage of large product shrinkage;
[0008] 6) The problem of large surface resistivity
Although they all have a certain flame retardant performance, but the amount of flame retardant additive is large, the phenomenon of material droplet is serious, the amount of smoke is large, the flame retardant effect is not very ideal, and the cost is high
Moreover, there are some problems in the use of these existing flame retardants. For example, octabromoether is easy to precipitate, and the long-term flame-retardant effect and appearance of the material are poor; It is easy to decompose under the environment; decabromodiphenyl ether is easy to generate polybrominated dibenzodioxane and polybrominated dibenzofuran when it is burned, causing pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Take 100 parts by weight of polypropylene, 10 parts of octabromoether, 6 parts of heat-stable hexabromocyclododecane, 7 parts of organic montmorillonite, 6 parts of antimony trioxide, and a compatibilizer maleic anhydride grafted polymer 6 parts of propylene, 14 parts of polyolefin elastomer (POE-g-MAH), 3 parts of antistatic agent (ASA-51), primary antioxidant (antioxidant 1010) and auxiliary antioxidant (antioxidant 168) 2 parts (the weight ratio of antioxidant 1010 to antioxidant 168 is 1:1); the above materials are added to a high-speed mixer for preliminary mixing, and brominated flame retardants, antimony trioxide and anti-melt droplet 4%wt titanate coupling agent (NDZ-101) based on the total weight of the agent was added into a high-speed mixer, and mixed at a high speed of 1200 rpm and 70°C for 10 minutes. Add the mixed pellets into the main feeding port of the twin-screw extruder, and add 18 parts of surface-modified chopped glass fibers (fiber length is 6 mm) ...

Embodiment 2

[0081] The octabromoether in Example 1 was changed to 10 parts of decabromodiphenylethane, and the rest of the 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

[0083] Change the chopped glass fiber in Example 1 into 18 parts of 12mm long, octabromoether into 10 parts of decabromodiphenylethane, all the other conditions are the same as in Example 1, and the preparation method of Example 1 is used to obtain granules After the materials were prepared, the standard specimens were injection molded in the injection molding machine, and various mechanical properties were tested. The results are shown in Table 1.

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PUM

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Abstract

The invention discloses a flame-proof polyolefin resin component and preparing method in the resin flame resistant modifying domain, which comprises the following parts: a. 9-20% bromine fire retardant with decabran diphenyl ethane or octabromobium ether and heat-stability hexabromide cyclododecane with weight rate at 2: 1-1: 2, b. 3-8% synergic fire retardant with antimony trioxide, c. 3-12% melt resistant melt drip agent with one or more of organic montmorillonite, kaolin and clay.

Description

technical field [0001] The invention relates to a flame-retardant polyolefin resin composition, in particular to a high-strength and high-toughness flame-retardant polyolefin resin composition modified by a brominated composite flame retardant and a preparation method thereof. Background technique [0002] Polyolefin resin is an important variety of thermoplastic resins, and it is also a very fast-growing resin among general-purpose plastics in the world today. It is light in weight, non-toxic, has excellent electrical insulation performance and chemical corrosion resistance, 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. However, modified polyolefin has the following problems as a packaging material with better strength and toughness: [0003] 1) It is a non-polar polymer and has poor compatibility wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/00C08K5/03C08K3/22C08K3/34C08K7/14C08K5/521C08L51/06
Inventor 臧充光焦清介吴中伟刘帅杨化浩
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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