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High flame retardant grade expandable polystyrene product and production method

A technology of expandable polystyrene and styrene, which is applied in the field of high flame-retardant expandable polystyrene products, can solve the problems that cannot meet the requirements of development, achieve high expansion ratio, good foam particle elasticity, Good flame retardant effect

Active Publication Date: 2013-04-03
新疆蓝山屯河新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main ordinary and flame-retardant EPS products in the market are flammable and combustible materials, which can no longer meet the development requirements in the field of building insulation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0013] Example 1: Take 100 parts by weight of styrene, 110 parts of process water, 0.05 parts of activated calcium phosphate, 0.9 parts of anhydrous sodium sulfate, 0.002 parts of sodium dodecylbenzenesulfonate, and 0.2 parts of polyethylene wax into the reactor Stir evenly, then add 0.4 parts of BPO, 0.05 parts of CP-02, 7 parts of pentane, 0.8 parts of hexabromocyclododecane, 0.5 parts of dicumyl peroxide, and heat to 90°C to start constant temperature polymerization reaction. The heating rate is controlled at 0.8°C / min, the constant temperature reaction time is 5 hours, 8 parts of pentane is added, the temperature is raised to 130°C, the heating rate is controlled at 0.2°C / min, the constant temperature reaction is 2 hours, the pressure is controlled at 0.7Mpa, and the temperature is lowered to 50°C The material can be discharged.

example 2

[0014] Example 2: Take 100 parts by weight of styrene, 130 parts of process water, 0.1 parts of activated calcium phosphate, 0.7 parts of anhydrous sodium sulfate, 0.0015 parts of sodium dodecylbenzenesulfonate, and 0.15 parts of polyethylene wax into the reactor and stir Evenly, then add 0.3 parts of BPO, 0.08 parts of CP-02, 8 parts of pentane, 0.9 parts of hexabromocyclododecane, 0.3 parts of dicumyl peroxide, and heat to 92°C to start constant temperature polymerization reaction , the heating rate is controlled at 1°C / min, the constant temperature reaction time is 5 hours, 9 parts of pentane is added, the temperature is raised to 125°C, the heating rate is controlled at 0.3°C / min, the constant temperature reaction is 3 hours, the pressure is controlled at 0.8Mpa, and the temperature is lowered to 48 ℃ can be discharged.

example 3

[0015] Example 3: Take 100 parts by weight of styrene, 120 parts of process water, 0.1 part of activated calcium phosphate, 0.7 part of anhydrous sodium sulfate, 0.001 part of sodium dodecylbenzenesulfonate, and 0.1 part of polyethylene wax into the reactor and stir Evenly, then add 0.4 parts of BPO, 0.05 parts of CP-02, 8 parts of pentane, 0.7 parts of hexabromocyclododecane, and 0.4 parts of dicumyl peroxide in sequence, and heat to 88°C to start the constant temperature polymerization reaction. The speed is controlled at 0.8°C / min, the constant temperature reaction time is 6 hours, 8 parts of pentane is added, the temperature is raised to 122°C, the heating rate is controlled at 0.4°C / min, the constant temperature reaction is 4 hours, the pressure is controlled at 0.9Mpa, and the temperature is lowered to 45°C. Can be discharged.

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Abstract

The invention discloses a high flame retardant grade expandable polystyrene product and a production method. The product is produced by components in part by weight as follows: 100 parts of styrene, 110-130 parts of process water, 0.3-0.5 part of BPO (Benzoyl Peroxide), 0.04-0.08 part of CP-02, 0.05-0.1 part of active calcium phosphate, 7-9 parts of pentane, 0.001-0.002 part of sodium dodecyl benzene sulfonate, 0.7-0.9 part of anhydrous sodium sulfate, 0.6-0.9 part of hexabromocyclododecane, 0.3-0.5 part of dicumyl peroxide, and 0.1-0.2 part of polyethylene wax. The product is produced by steps of feeding, low temperature reaction, high temperature reaction and cooling and discharging. Compared with the prior art, the high flame retardant grade expandable polystyrene product is high in foaming ratio and good in particle elasticity, the foam expansion reaches more than 120 times, and in particular, the flame retardant effect is good, and the oxygen index reaches above 32.

Description

technical field [0001] The invention relates to a highly flame-retardant expandable polystyrene product and a production method. Background technique [0002] The application of EPS boards to external wall insulation has been widely promoted, but at the same time, the fire prevention of EPS board external insulation materials is also in front of us. [0003] At present, the main ordinary and flame-retardant EPS products in the market are flammable and combustible materials, which can no longer meet the development requirements in the field of building insulation. Especially in recent years, fires of building external insulation materials have occurred one after another in China, causing serious casualties and property losses. Building flammable and combustible external insulation materials have become a new type of fire hazard. Therefore, the upgrading of the fireproof performance of insulation materials has become a problems that urgently need to be resolved. [0004] The...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08F112/08C08K5/02C08K5/14C08J9/20
Inventor 陈风春吴晓娜
Owner 新疆蓝山屯河新材料有限公司
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