工艺参数对EVA发泡制品性能的影响.pdfVIP

25 4 ( ) Vol 25 No. 4 2010 8 JOURNAL OF ZH ENGZHOU UNIVERSITY OF L IGHT INDUSTRY( Natural S ien e) Aug. 2010 : 1004- 1478( 20 10) 04- 0012- 04 工艺参数对 EVA 发泡制品性能的影响 刘斌, 许建文 (华侨大学 模具技术研究中心, 福建泉州 362021) : 对 EVA 注射成型中成型工艺参数对制品性能的影响进行研究, 结果表明: 对于密度, 模具温 度较为显著, 模压时间次之, 注射压力与模压压力可忽略不计; 对于拉伸强度, 注射压力较大, 模压 压力与模压时间次之, 注射压力较小, 但各因素影响程度相差不大; 对于断裂伸长率, 模具温度显 著, 模压时间与注射压力次之, 模压压力较小; 对于硬度, 模具温度显著, 模压时间与注射压力次 之, 模压压力较小, 可忽略不计 : 乙烯- 醋酸乙烯共聚物; 工艺参数; 拉伸强度; 断裂伸长率 : TQ 3289 : A Research on process param eters effects on performances of EVA foam product LIU Bin, XU Jianw en ( M ould and D ie TechR esearch C enter, H uaq iao Un iv , Q uanzhou 36202 1, Ch ina) Abstract: The affe tions of pro essing param eters on ethylenevinyl a etate opolymer( EVA ) inje tion form ing w ere studiedItw as on luded that the effe t ofmold ing temperture on densityw as themost obvi ous, w hile molding tmi e the se ond, and inje tion pressure and mold ing pressure ould be om ittedAnd the affe tions of fa tors on the tensile strength w ere as follow ed: the d ifferen e betw een all parametersw as not so d istin t wh ile the inje tion pressure took themost obvious affe tion, mold ing pressure and molding tmi e the se ond, and inje tion pressure took little affe tion. And as to breaking elongation ratio, molding temperature took an obvious affe tion, molding tmi e and inje tion pressure the se ond, mold ing pressure the leastAnd as to hardness, molding temperature took a obvious affe tion, molding tmi e and inje tion pressure the se ond, molding pressure took the least and ou ld be om itted K ey words: EVA; pro ess parameters; ten