可降解泡沫塑料生产技术及其在物流包装领域的应用  

Production and process application of degradable foamed plastics in logistical packaging

作　　者：张骞[1] 李冰[2] 智怿擎 Zhang Qian;Li Bing;Zhi Yiqing(Shijiazhuang Vocational College of Information Technology,Shijiazhuang 050035,China;Beijing Vocational College of Labor andSocial Security,Beijing 100029,China;Hebei Yingtai Lihe Energy Technology,Co.,Ltd.,Shijiazhuang 050000,China)

机构地区：[1]石家庄信息工程职业学院,河北石家庄050035 [2]北京劳动保障职业学院,北京100029 [3]河北英泰利合能源科技有限公司,河北石家庄050000

出　　处：《合成树脂及塑料》2023年第2期68-71,共4页China Synthetic Resin and Plastics

基　　金：河北省省级科技计划资助,河北省创新能力提升计划(21554701D)。

摘　　要：综述了聚乳酸(PLA)、聚丙烯、聚乙烯醇(PVA)泡沫塑料的研发进展。使用生物填料纤维素纳米纤维对PLA改性可以制备轻质高强PLA泡沫塑料;使用环氧扩链剂、酰肼类成核剂并在超临界流体发泡釜中进行发泡可以制备PLA泡沫塑料;还可以使用膨胀微球作为发泡剂熔融共混制备PLA泡沫塑料。通过添加微米二氧化硅进行共混改性,利用釜式发泡工艺制备聚丙烯泡沫塑料(EPP)珠粒,可以缩短EPP珠粒成型周期;通过在EPP原料中加入玻璃纤维、金属盐、聚偏二氯乙烯等可以制备自洁性好、耐化学药品腐蚀的EPP包装材料。通过在中黏度PVA中添加离子型聚合物,经化学交联后发泡可以制备高吸水性PVA泡沫塑料。The research and development of polylactic acid(PLA),polypropylene,polyvinyl alcohol(PVA)foamed plastics are reviewed.Biological filler cellulose nano-fiber can be used to modify PLA to prepare light PLA foam with high strength;epoxy chain extender and acylhydrazine nucleating agent can be used to foam in super-critical fluid foaming kettle to prepare PLA foam;expanded microsphere can be used as foaming agent to prepare PLA foam via melt blending;micron silica is added to prepare polypropylene foam(EPP)beads via batch foaming by blending modification and shorten the formation period of the beads;glass fiber,metal salts,and polyvinylidene chloride can be used to prepare EPP packaging material that performs excellently in self-cleanliness and chemical resistance.PVA foam with high absorbency can be made via chemical crosslinking by adding ionomer in PVA of medium viscosity.

关 键 词：泡沫塑料 降解 聚乳酸 聚丙烯 聚乙烯醇 

分 类 号：TQ325[化学工程—合成树脂塑料工业]