增塑剂对脲醛树脂模塑料性能的影响  

Effects of different plasticizers on performance of urea-formaldehyde molding plastics

作　　者：韩春国[1] 李守海[1] 王春鹏[1,2] 金铁铃[1] 储富祥[1,2] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏省生物质能源与材料重点实验室,江苏南京210042 [2]中国林业科学研究院林业新技术研究所,北京100091

出　　处：《现代化工》2011年第2期61-63,65,共4页Modern Chemical Industry

基　　金：国家“863”计划资助项目(2007AA100704);浙江省省院合作项目(2009SY01);林业行业专项项目(201104004)

摘　　要：以尿素、甲醛及木质纤维素等为原料，通过添加聚乙二醇6000、聚乙烯蜡、磷酸三苯酯和对甲苯磺酰胺4种增塑剂，研究其对脲醛树脂模塑料（UF）流动性能、力学性能的影响，并采用动态热机械分析仪（DMA）分析了脲醛树脂模塑料的动态力学性能。研究表明，4种增塑剂均能明显提高脲醛树脂模塑料的流动性能；聚乙二醇6000对脲醛树脂模塑料的流动性能和力学性能增强最为明显，并增强了脲醛树脂模塑料的耐热性能，添加的质量分数为1．0％～3．O％时脲醛树脂模塑料的综合性能最优，弯曲强度为80～86MPa，冲击强度为1．63～1．75kJ／m2，流动性能为76～83mm。The urea-formaldehyde molding compound （UF） is prepared by using urea, formaldehyde and lingo cellulose as main raw materials. Polyethylene glycol 6000, polyethylene-wax, triphenyl phosphate, para-toluenesulfonamide are used as plasticizer for molding plastics. The effects of different plasticizers on fluidity and mechanical property of UF are studied. The dynamic mechanical properties of UF are also tested by dynamic mechanical analyzer （DMA）. The results show that all of four plasticizers improve the flow properties of UF. The polyethylene glycol 6000 increases the flow and mechanical properties of UF remarkably, and improves the heat-resistant of UF. The comprehensive property of UF is excellent when the content of polyethylene glycol 6000 is 1.0% - 3.0% ,the flexural strength is 80 - 86 MPa,the impact strength is 1.63 - 1.75 kJ/m2, the fluidity is 76 - 83 mm.

关 键 词：增塑剂 脲醛树脂模塑料 动态热机械分析 

分 类 号：TQ414[化学工程] TQ322.41