Bitumen flame-proof modifier

A technology of flame retardant modifier and asphalt, which is applied in the field of asphalt flame retardant modifiers, can solve the problems of great difference in the density of flame retardants, limitations of asphalt flame retardant ability, and unstable existence of flame retardants. Road performance, less equipment corrosion, and no pollution to the working environment

Inactive Publication Date: 2008-04-02
SHENZHEN OCEANPOWER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of production process is complex and has disadvantages such as pollution to the environment.
And because the density difference between the flame retardant and asphalt is very large, the flame retardant cannot exist stably in the asphalt, and the asphalt has serious segregation phenomenon. In order to slow down the segregation of the asphalt, the amount of the flame retardant added will be greatly limited , the flame retardant ability of asphalt will also have great limitations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh by weight: decabromodiphenyl ether 450g; hydrated magnesium silicate 150g; magnesium hydroxide 150g; coupling agent C 16 ~C 18 fatty acid 100g; polyethylene 150g. Under the condition of 20 min / rev, mix various raw materials evenly; heat the mixture to 80°C within 10s, then heat up to 150°C within 15s, and finally heat up to 200°C within 5s; cool the mixture and extrude , granulation, barreling, to get the finished product.

Embodiment 2

[0021] Weigh by weight: decabromodiphenyl ether 300g; hydrated magnesium silicate 240g; aluminum hydroxide 50g; coupling agent C 16 ~C 18 fatty acid 10g; polypropylene 250g. The preparation method is the same as in Example 1.

Embodiment 3

[0023] Weigh by weight: decabromodiphenylethane 340g; hydrated magnesium silicate 300g; zinc borate 100g; coupling agent C 16 ~C 18 60g of fatty acids; 20 parts of EVA. The preparation method is the same as in Example 1.

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PUM

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Abstract

The present invention discloses an asphalt flame retardant modifier which is granular. According to the weight portion, the composition is: 20 portion to 45 portion of decabromodiphenyl ether or decabromophenylethane, 15 portion to 30 portion of hydrated magnesium silicate, 5 portion to 15 portion of smoke-suppressant, 1 portion to 10 portion of fatty acid of C16-C18 as coupling agent, and 15 portion to 25 portion of polyolefin. The present invention also discloses a preparation method of the asphalt flame retardant modifier. The asphalt flame retardant modifier of the present invention has good road performances and has the characteristics of good dispersion, easy addition, security, environmental protection and so on. The present invention improves the production efficiency, has no environmental pollution in working, and less equipment corrosion. The flame retardant composition is proper; the synergic effects of a plurality of flame retardants are made full use of; the materials are directly blended and added; the present invention simplifies the production process and reduces the production cost.

Description

【Technical field】 [0001] The invention relates to an asphalt flame retardant modifier, more specifically, the invention relates to a special functional modification additive for asphalt. 【Background technique】 [0002] Asphalt is the final product of petroleum refining, and it is a cheap and abundant building material widely used in construction for waterproof, moisture-proof, anti-corrosion, rust-proof, anti-leakage, etc. Some of its properties are unmatched by synthetic rubber and synthetic resin. However, asphalt is easy to burn, produces a large amount of black smoke when burned, melts and flows when heated, and has a great fire hazard, and its application is also subject to certain restrictions. For this reason, the research on the flame retardancy of asphalt has great practical significance. [0003] With the development of my country's expressways, the number of highway tunnels is also increasing. Because cement concrete is water-resistant and non-combustible, cemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L23/06C08L23/12C08L25/06C08L23/08C08K3/22
CPCC08L95/00C09K21/14
Inventor 张萍何唯平
Owner SHENZHEN OCEANPOWER NEW MATERIALS TECH
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