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发明授权
CN101153089B 聚乙烯醇极性泡沫塑料及其制备方法 有权

聚乙烯醇极性泡沫塑料及其制备方法
摘要：
一种聚乙烯醇极性泡沫塑料，以水为发泡剂和增塑剂，按重量份计，水15～55份，聚乙烯醇45～85份，经溶胀、熔融加工发泡。熔融加工发泡包括熔融挤出连续发泡法和模压发泡法。聚乙烯醇泡沫塑料为板材或片材或薄膜或珠粒或块体。本发明所述聚乙烯醇极性泡沫塑料，还可加入交联剂、分子复合剂、加工助剂、成核剂、功能助剂，按重量份计，交联剂0～2份、分子复合剂0～10份、加工助剂0～10份、成核剂0～5份、功能助剂0～30份。本发明所述聚乙烯醇极性泡沫塑料作为重金属粒子和有机污染物的吸附、过滤分离材料使用时，具有快速吸附、易解吸附和可反复冲洗的特点。
摘要（英）：

The present invention provides poly vinyl alcohol polar foam. Water is used as foamer and plasticizer. According to weight, water is 15 portions to 55 portions, and poly vinyl alcohol is 45 portions to 85 portions. The material are dissolved for expansion, melted and processed for foaming. The melting and processing foaming comprises a melting and extruding continuous foaming method and a moldingfoaming method. The poly vinyl alcohol polar foam is a plate material, sheet material, membrane or bead or square block. The poly vinyl alcohol polar foam of the present invention can be added with crosslinker, molecular composite agent, processing aid, nucleating agent and functional additive. According to the weight portion, the crosslinker is 0 portion to 2 portions, the molecular composite agent 0 portion to 10 portions, the processing aid 0 portion to 10 portions, the nucleating agent 0 portion to 5 portions and the functional additive 0 portion to 30 portions. When the poly vinyl alcohol polar foam of the present invention is used as heavy metal particles, adsorption, filtration and separation material of organic pollutant, the poly vinyl alcohol polar foam has the characteristics of rapid adsorption, easy desorption and capacity of being repeatedly washed.

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