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Expandable polystyrene product and production method thereof

A technology of expandable polystyrene products, which is applied in the field of expandable polystyrene products, can solve the problems of unstable product quality and low expansion ratio, and achieve good elasticity, high expansion ratio, and comprehensive economic technology. good indicators

Active Publication Date: 2010-07-07
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

[0004] The current one-step production technology of expandable polystyrene, due to the raw material formula and process of the product, the foaming ratio of the product is generally low, generally only about 35 times, and the foaming ratio of imported materials is only about 60 times. And the product quality is unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take 110 parts of water and 100 parts of styrene monomer into the reaction kettle, add 0.05 parts of dispersant TCP, 0.5 parts of initiator A BPO, 0.15 parts of suspending agent polyethylene wax, and 0.01 parts of emulsifier GMS in sequence, and heat up to 85 ° C. Stir evenly and react for 10 hours; pressurize 7 parts of blowing agent pentane with nitrogen, raise the temperature to 110°C, stir evenly, and react for 2 hours; then add 0.1 part of initiator B CP-02, heat up to 115°C, continue Stir and react for 5 hours; cool down and discharge to obtain the expandable polystyrene product of the present invention.

Embodiment 2

[0026] Add 150 parts of water and 100 parts of styrene monomer into the reaction kettle, add 0.15 parts of dispersant TCP, 0.35 parts of initiator A BPO, 0.2 parts of suspending agent polyethylene wax, and 0.005 parts of emulsifier GMS in sequence, and heat up to 90°C , stirred evenly, and reacted for 10 hours; pressurized 8 parts of blowing agent pentane with nitrogen, raised the temperature to 108 ° C, stirred evenly, and reacted for 1.5 hours; then added 0.06 parts of initiator B CP-02, and raised the temperature to 120 ° C, Continue to stir and react for 6 hours; cool down and discharge to obtain the expandable polystyrene product of the present invention.

Embodiment 3

[0028] Take 120 parts of water and 100 parts of styrene monomer into the reaction kettle, add 0.10 parts of dispersant TCP, 0.3 parts of initiator A BPO, 0.15 parts of suspending agent polyethylene wax, and 0.001 parts of emulsifier GMS in sequence, and heat up to 88°C. Stir evenly and react for 8 hours;

[0029] Inject 9 parts of blowing agent pentane with nitrogen pressure, heat up to 108°C, stir evenly, and react for 1.8 hours;

[0030] Then add 0.08 parts of initiator B CP-02, raise the temperature to 125°C, continue to stir, and react for 5.5 hours;

[0031] The expandable polystyrene product of the present invention can be obtained after cooling down and discharging.

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PUM

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Abstract

The invention discloses an expandable polystyrene product and a production method thereof. The expandable polystyrene product is made by processing the following ingredients in parts by weight: 100 parts of styrene, 110 to 150 parts of water, 0.25 to 0.5 part of evocating agent A: BPO, 0.04 to 0.1 part of evocating agent B: CP-02, 7 to 10 parts of vesicant: pentane, 0.05 to 0.15 part of dispersant: TCP, 0.05 to 0.2 part of suspending agent: polyethylene wax and 0 to 0.01 part of emulsifier: GMS, and the ingredients react and are evocated as per certain sequence at rated temperature by stages. Compared with the prior art, the product has uniform particle size distribution, high foaming multiplying factor (no less than 90), favorable elasticity, stable quality, high yield rate and favorable comprehensive economic and technical norms, and the production method of the product has little pollution on environment.

Description

Technical field: [0001] The invention relates to an expandable polystyrene product and a production method of the product. Background technique: [0002] The current EPS, that is, expandable polystyrene, is widely used in construction due to its unique thermal insulation properties, excellent cushioning and shock resistance, light weight, low water absorption, low thermal conductivity, and good electrical insulation. , packaging, electronic and electrical products, etc., and as the development trend of green buildings, energy-saving and environmental protection products has become higher and higher in recent years, its demand is also increasing. [0003] The usual expandable polystyrene is polymerized and impregnated in two reactors respectively, that is, a two-step method. This kind of process is long, consumes a lot of energy, has a long process, and is not easy to operate. Therefore, a one-step production process is often used at present, that is, polymerization and impr...

Claims

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Application Information

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IPC IPC(8): C08J9/20C08J9/18C08L25/06
Inventor 肖庆贵霍新强冯国林李智元吴振刚杨有胜陈凤
Owner 新疆蓝山屯河新材料有限公司
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