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Flame-retardant EPS composite foam containing expandable graphite and preparation method of flame-retardant EPS composite foam
The invention discloses flame-retardant EPS composite foam containing expandable graphite and a preparation method of the flame-retardant EPS composite foam. The preparation method comprises the following steps: 1) taking fine flake graphite, an oxidizing agent and an intercalation agent as raw materials, and preparing expandable graphite by adopting a chemical intercalation method; 2) carrying out surface modification on the expandable graphite by adopting a modifier; 3) adding the surface-modified expandable graphite into styrene, dispersing, adding an initiator, continuously stirring, and pre-polymerizing to obtain an expandable graphite/styrene pre-polymerized solution; 4) adding a dispersing agent and water into a reaction container, stirring, adding the expandable graphite/styrene prepolymer solution, and adding a foaming agent for reaction to obtain expandable graphite/polystyrene particles; and 5) pre-foaming the expandable graphite/polystyrene particles in water vapor, curing, and carrying out high-pressure foaming molding to obtain the flame-retardant EPS composite foam containing expandable graphite. The preparation process is simple, and the prepared composite foam has good thermal insulation performance and flame retardant performance.
本发明公开了一种含可膨胀石墨的阻燃型EPS复合泡沫及其制备方法。该制备方法包括如下步骤：1)以细鳞片石墨、氧化剂和插层剂为原料，采用化学插层法制备可膨胀石墨；2)采用改性剂对可膨胀石墨进行表面改性；3)将表面改性可膨胀石墨加入苯乙烯中，分散后加入引发剂持续搅拌进行预聚，得到可膨胀石墨/苯乙烯预聚溶液；4)将分散剂和水加入反应容器，搅拌后加入可膨胀石墨/苯乙烯预聚溶液，加入发泡剂反应，得到可膨胀石墨/聚苯乙烯颗粒；5)将可膨胀石墨/聚苯乙烯颗粒在水蒸气下预先发泡，熟化后进行高压发泡成型，得到含可膨胀石墨的阻燃型EPS复合泡沫。本发明的制备工艺简单，制得的复合泡沫具有良好的保温性能和阻燃性能。
Flame-retardant EPS composite foam containing expandable graphite and preparation method of flame-retardant EPS composite foam
The invention discloses flame-retardant EPS composite foam containing expandable graphite and a preparation method of the flame-retardant EPS composite foam. The preparation method comprises the following steps: 1) taking fine flake graphite, an oxidizing agent and an intercalation agent as raw materials, and preparing expandable graphite by adopting a chemical intercalation method; 2) carrying out surface modification on the expandable graphite by adopting a modifier; 3) adding the surface-modified expandable graphite into styrene, dispersing, adding an initiator, continuously stirring, and pre-polymerizing to obtain an expandable graphite/styrene pre-polymerized solution; 4) adding a dispersing agent and water into a reaction container, stirring, adding the expandable graphite/styrene prepolymer solution, and adding a foaming agent for reaction to obtain expandable graphite/polystyrene particles; and 5) pre-foaming the expandable graphite/polystyrene particles in water vapor, curing, and carrying out high-pressure foaming molding to obtain the flame-retardant EPS composite foam containing expandable graphite. The preparation process is simple, and the prepared composite foam has good thermal insulation performance and flame retardant performance.
本发明公开了一种含可膨胀石墨的阻燃型EPS复合泡沫及其制备方法。该制备方法包括如下步骤：1)以细鳞片石墨、氧化剂和插层剂为原料，采用化学插层法制备可膨胀石墨；2)采用改性剂对可膨胀石墨进行表面改性；3)将表面改性可膨胀石墨加入苯乙烯中，分散后加入引发剂持续搅拌进行预聚，得到可膨胀石墨/苯乙烯预聚溶液；4)将分散剂和水加入反应容器，搅拌后加入可膨胀石墨/苯乙烯预聚溶液，加入发泡剂反应，得到可膨胀石墨/聚苯乙烯颗粒；5)将可膨胀石墨/聚苯乙烯颗粒在水蒸气下预先发泡，熟化后进行高压发泡成型，得到含可膨胀石墨的阻燃型EPS复合泡沫。本发明的制备工艺简单，制得的复合泡沫具有良好的保温性能和阻燃性能。
Flame-retardant EPS composite foam containing expandable graphite and preparation method of flame-retardant EPS composite foam
一种含可膨胀石墨的阻燃型EPS复合泡沫及其制备方法
CHENG FEIFEI (author) / PAN WEI (author) / YU YANGHUI (author) / ZHANG MING (author) / ZHANG TAO (author)
2021-06-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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