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
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[0023] Example 1:
[0024] Take 110 parts of water and 100 parts of styrene monomer into the reactor, add 0.05 parts of dispersant TCP, 0.5 parts of initiator A BPO, 0.15 parts of suspending agent polyethylene wax, 0.01 parts of emulsifier GMS, and heat up to 85℃. Stir uniformly and react for 10 hours; pressurize 7 parts of blowing agent pentane with nitrogen, heat up 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; cooling and discharging to obtain the expandable polystyrene product of the present invention.
Example Embodiment
[0025] Example 2:
[0026] Add 150 parts of water and 100 parts of styrene monomer to the reactor, 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, and heat up to 90℃. , Stir uniformly, react for 10 hours; pressurize 8 parts of blowing agent pentane with nitrogen, heat up to 108°C, stir evenly, and react for 1.5 hours; then add 0.06 part of initiator B CP-02 and heat up to 120°C, Continue to stir and react for 6 hours; cooling and discharging to obtain the expandable polystyrene product of the present invention.
Example Embodiment
[0027] Example 3:
[0028] Take 120 parts of water and 100 parts of styrene monomer into the reactor, add 0.10 part of dispersant TCP, 0.3 part of initiator A BPO, 0.15 part of suspending agent polyethylene wax, and 0.001 part of emulsifier GMS, and heat up to 88℃. Stir evenly and react for 8 hours;
[0029] Use nitrogen to press 9 parts of pentane as a blowing agent, heat up to 108°C, stir evenly, and react for 1.8 hours;
[0030] Then add 0.08 part of initiator B CP-02, heat up to 125°C, continue to stir, and react for 5.5 hours;
[0031] The expandable polystyrene product of the present invention can be obtained by cooling and discharging the material.
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