CN109251304A - 一种阻燃聚氨酯泡沫塑料及其制备方法 - Google Patents
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Abstract
本发明提供一种阻燃聚氨酯泡沫塑料,按质量份数计,其由以下组份制备而得:聚醚多元醇100份、甲苯二异氰酸酯60‑100份、锡催化剂0.2‑0.3份、发泡剂10‑25份、阻燃剂10‑80份,本发明还提供了该材料的制备方法:S1:将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合得第一混合物;S2:将所述锡催化剂、所述发泡剂、所述阻燃剂加入所述第一混合物中,进行混合得第二混合物;S3:将所述第二混合物与异氰酸酯进行混合,混合后注入膜腔,发泡熟化后得所述聚氨酯硬质泡沫塑料,该材料阻燃效果好、机械性能佳、安全无毒、且制备工艺简单。
Description
技术领域
本发明涉及一种阻燃聚氨酯泡沫塑料及其制备方法,属于高分子材料技术领域。
背景技术
在制备聚氨酯材料时,体系中除了多元醇与异氰酸酯外,还往往需要加入助剂,以改进反应进程或者最后制品的性能,聚氨酯材料生产过程中,往往需要加入胺类催化剂以加快反应进程,降低反应温度等,但胺类催化剂往往都是小分子化合物,分子量小,蒸汽压低,挥发性大,导致制备的聚氨酯制品往往含有较大的胺味,对生产工人和最终使用者都造成伤害,同时现行聚氨酯泡沫塑料主要通过添加卤系物进行阻燃,卤系物在燃烧时生成腐蚀性有毒气体,对人员生命造成危害。
发明内容
本发明目的是提供一种阻燃聚氨酯泡沫塑料及其制备方法,该材料阻燃效果好、机械性能佳、安全无毒、且制备工艺简单。
本发明的技术方案是:一种阻燃聚氨酯泡沫塑料,按质量份数计,其由以下组份制备而得:聚醚多元醇100份、甲苯二异氰酸酯60-100份、锡催化剂0.2-0.3份、发泡剂10-25份、阻燃剂10-80份。
进一步地,按质量份数计,所述聚醚多元醇包括:聚醚多元醇一80-100份、聚醚多元醇二50-80份,所述聚醚多元醇一是以双酚A与多元醇作为起始剂与氧化烯烃通过加成反应制备得到,其中,所述多元醇为乙二醇、丙二醇、一缩二乙二醇、二缩三乙二醇中的一种或多种,所述聚醚多元醇二的粘度为200-350mpa.s,羟值为160-300mgKOH/g,平均官能度为2-3,所述聚醚多元醇二是以甘油、三羟乙基丙烷中的至少一种作为起始剂与氧化烯烃通过加成反应制备得到,所述聚醚多元醇二的粘度为400-800mp.s,羟值为250-500mgKOH/g,平均官能度为2-3。
进一步地,所述甲苯二异氰酸酯选用异氰酸指数100-105的甲苯二异氰酸酯,所述锡催化剂选用辛酸亚锡,所述发泡剂选自一氟二氯乙烷、五氟丙烷、正戊烷、环戊烷,CO2和水中一种或几种。
进一步地,所述阻燃剂为包覆红磷和聚磷酸铵的混合物。
本发明还提供一种上述任一种阻燃聚氨酯泡沫塑料的制备方法,包括:
S1:将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合得第一混合物;
S2:将所述锡催化剂、所述发泡剂、所述阻燃剂加入所述第一混合物中,进行混合得第二混合物;
S3:将所述第二混合物与异氰酸酯进行混合,混合后注入膜腔,发泡熟化后得所述聚氨酯硬质泡沫塑料。
进一步地,所述步骤S1中,将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合后,在20℃-25℃条件下搅拌2-3小时;所述步骤S2中,所述发泡剂与所述第一混合物在20℃-25℃,压力为1-2bar条件下搅拌2-3小时;所述步骤S3中,所述第二混合物与所述异氰酸酯在20℃-25℃,压力为120-130bar条件下混合。
本发明的有益效果是:
通过对配方的调整并采用独特的聚醚多元醇混合物,得到了机械性能良好地阻燃聚氨酯泡沫塑料,该材料阻燃效果好、安全无毒、且制备工艺简单。
具体实施方式
实施例1
一种阻燃聚氨酯泡沫塑料,按质量份数计,其由以下组份制备而得:聚醚多元醇100份、甲苯二异氰酸酯60份、锡催化剂0.2份、发泡剂10份、阻燃剂10份。
进一步地,按质量份数计,所述聚醚多元醇包括:聚醚多元醇一80份、聚醚多元醇二50份,所述聚醚多元醇一是以双酚A与多元醇作为起始剂与氧化烯烃通过加成反应制备得到,其中,所述多元醇为乙二醇、丙二醇、一缩二乙二醇、二缩三乙二醇中的一种或多种,所述聚醚多元醇二的粘度为200mpa.s,羟值为160mgKOH/g,平均官能度为2-3,所述聚醚多元醇二是以甘油、三羟乙基丙烷中的至少一种作为起始剂与氧化烯烃通过加成反应制备得到,所述聚醚多元醇二的粘度为400mp.s,羟值为250mgKOH/g,平均官能度为2。
进一步地,所述甲苯二异氰酸酯选用异氰酸指数100的甲苯二异氰酸酯,所述锡催化剂选用辛酸亚锡,所述发泡剂选自一氟二氯乙烷、五氟丙烷、正戊烷、环戊烷,CO2和水中一种或几种。
进一步地,所述阻燃剂为包覆红磷和聚磷酸铵的混合物。
本发明还提供一种上述任一种阻燃聚氨酯泡沫塑料的制备方法,包括:
S1:将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合得第一混合物;
S2:将所述锡催化剂、所述发泡剂、所述阻燃剂加入所述第一混合物中,进行混合得第二混合物;
S3:将所述第二混合物与异氰酸酯进行混合,混合后注入膜腔,发泡熟化后得所述聚氨酯硬质泡沫塑料。
进一步地,所述步骤S1中,将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合后,在20℃条件下搅拌2小时;所述步骤S2中,所述发泡剂与所述第一混合物在20℃,压力为1bar条件下搅拌2小时;所述步骤S3中,所述第二混合物与所述异氰酸酯在20℃,压力为120bar条件下混合。
实施例2
一种阻燃聚氨酯泡沫塑料,按质量份数计,其由以下组份制备而得:聚醚多元醇100份、甲苯二异氰酸酯100份、锡催化剂0.3份、发泡剂25份、阻燃剂80份。
进一步地,按质量份数计,所述聚醚多元醇包括:聚醚多元醇一100份、聚醚多元醇二80份,所述聚醚多元醇一是以双酚A与多元醇作为起始剂与氧化烯烃通过加成反应制备得到,其中,所述多元醇为乙二醇、丙二醇、一缩二乙二醇、二缩三乙二醇中的一种或多种,所述聚醚多元醇二的粘度为350mpa.s,羟值为300mgKOH/g,平均官能度为3,所述聚醚多元醇二是以甘油、三羟乙基丙烷中的至少一种作为起始剂与氧化烯烃通过加成反应制备得到,所述聚醚多元醇二的粘度为800mp.s,羟值为500mgKOH/g,平均官能度为3。
进一步地,所述甲苯二异氰酸酯选用异氰酸指数105的甲苯二异氰酸酯,所述锡催化剂选用辛酸亚锡,所述发泡剂选自一氟二氯乙烷、五氟丙烷、正戊烷、环戊烷,CO2和水中一种或几种。
进一步地,所述阻燃剂为包覆红磷和聚磷酸铵的混合物。
本发明还提供一种上述任一种阻燃聚氨酯泡沫塑料的制备方法,包括:
S1:将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合得第一混合物;
S2:将所述锡催化剂、所述发泡剂、所述阻燃剂加入所述第一混合物中,进行混合得第二混合物;
S3:将所述第二混合物与异氰酸酯进行混合,混合后注入膜腔,发泡熟化后得所述聚氨酯硬质泡沫塑料。
进一步地,所述步骤S1中,将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合后,在25℃条件下搅拌3小时;所述步骤S2中,所述发泡剂与所述第一混合物在25℃,压力为2bar条件下搅拌3小时;所述步骤S3中,所述第二混合物与所述异氰酸酯在25℃,压力为130bar条件下混合。
实施例3
一种阻燃聚氨酯泡沫塑料,按质量份数计,其由以下组份制备而得:聚醚多元醇100份、甲苯二异氰酸酯80份、锡催化剂0.25份、发泡剂18份、阻燃剂45份。
进一步地,按质量份数计,所述聚醚多元醇包括:聚醚多元醇一90份、聚醚多元醇二65份,所述聚醚多元醇一是以双酚A与多元醇作为起始剂与氧化烯烃通过加成反应制备得到,其中,所述多元醇为乙二醇、丙二醇、一缩二乙二醇、二缩三乙二醇中的一种或多种,所述聚醚多元醇二的粘度为280mpa.s,羟值为230mgKOH/g,平均官能度为2,所述聚醚多元醇二是以甘油、三羟乙基丙烷中的至少一种作为起始剂与氧化烯烃通过加成反应制备得到,所述聚醚多元醇二的粘度为600mp.s,羟值为375mgKOH/g,平均官能度为2。
进一步地,所述甲苯二异氰酸酯选用异氰酸指数100的甲苯二异氰酸酯,所述锡催化剂选用辛酸亚锡,所述发泡剂选自一氟二氯乙烷、五氟丙烷、正戊烷、环戊烷,CO2和水中一种或几种。
进一步地,所述阻燃剂为包覆红磷和聚磷酸铵的混合物。
本发明还提供一种上述任一种阻燃聚氨酯泡沫塑料的制备方法,包括:
S1:将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合得第一混合物;
S2:将所述锡催化剂、所述发泡剂、所述阻燃剂加入所述第一混合物中,进行混合得第二混合物;
S3:将所述第二混合物与异氰酸酯进行混合,混合后注入膜腔,发泡熟化后得所述聚氨酯硬质泡沫塑料。
进一步地,所述步骤S1中,将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合后,在20℃条件下搅拌2.5小时;所述步骤S2中,所述发泡剂与所述第一混合物在20℃,压力为1.5bar条件下搅拌2.5小时;所述步骤S3中,所述第二混合物与所述异氰酸酯在20℃,压力为125bar条件下混合。
实施例4
一种阻燃聚氨酯泡沫塑料,按质量份数计,其由以下组份制备而得:聚醚多元醇100份、甲苯二异氰酸酯80份、锡催化剂0.25份、发泡剂18份、阻燃剂45份。
进一步地,按质量份数计,所述聚醚多元醇包括:聚醚多元醇一90份、聚醚多元醇二65份,所述聚醚多元醇一是以双酚A与多元醇作为起始剂与氧化烯烃通过加成反应制备得到,其中,所述多元醇为乙二醇、丙二醇、一缩二乙二醇、二缩三乙二醇中的一种或多种,所述聚醚多元醇二的粘度为275mpa.s,羟值为230mgKOH/g,平均官能度为3,所述聚醚多元醇二是以甘油、三羟乙基丙烷中的至少一种作为起始剂与氧化烯烃通过加成反应制备得到,所述聚醚多元醇二的粘度为600mp.s,羟值为375mgKOH/g,平均官能度为3。
进一步地,所述甲苯二异氰酸酯选用异氰酸指数105的甲苯二异氰酸酯,所述锡催化剂选用辛酸亚锡,所述发泡剂选自一氟二氯乙烷、五氟丙烷、正戊烷、环戊烷,CO2和水中一种或几种。
进一步地,所述阻燃剂为包覆红磷和聚磷酸铵的混合物。
本发明还提供一种上述任一种阻燃聚氨酯泡沫塑料的制备方法,包括:
S1:将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合得第一混合物;
S2:将所述锡催化剂、所述发泡剂、所述阻燃剂加入所述第一混合物中,进行混合得第二混合物;
S3:将所述第二混合物与异氰酸酯进行混合,混合后注入膜腔,发泡熟化后得所述聚氨酯硬质泡沫塑料。
进一步地,所述步骤S1中,将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合后,在25℃条件下搅拌2.5小时;所述步骤S2中,所述发泡剂与所述第一混合物在25℃,压力为1.5bar条件下搅拌2.5小时;所述步骤S3中,所述第二混合物与所述异氰酸酯在25℃,压力为125bar条件下混合。
对实施例1-4制得的阻燃聚氨酯泡沫塑料进行性能测试,具体指标如表1所示。
表1实施例1-4制得的阻燃聚氨酯泡沫塑料的性能指标
Claims (6)
1.一种阻燃聚氨酯泡沫塑料,其特征在于,按质量份数计,其由以下组份制备而得:聚醚多元醇100份、甲苯二异氰酸酯60-100份、锡催化剂0.2-0.3份、发泡剂10-25份、阻燃剂10-80份。
2.根据权利要求1所述的一种阻燃聚氨酯泡沫塑料,其特征在于,按质量份数计,所述聚醚多元醇包括:聚醚多元醇一80-100份、聚醚多元醇二50-80份,所述聚醚多元醇一是以双酚A与多元醇作为起始剂与氧化烯烃通过加成反应制备得到,其中,所述多元醇为乙二醇、丙二醇、一缩二乙二醇、二缩三乙二醇中的一种或多种,所述聚醚多元醇二的粘度为200-350mpa.s,羟值为160-300mgKOH/g,平均官能度为2-3,所述聚醚多元醇二是以甘油、三羟乙基丙烷中的至少一种作为起始剂与氧化烯烃通过加成反应制备得到,所述聚醚多元醇二的粘度为400-800mp.s,羟值为250-500mgKOH/g,平均官能度为2-3。
3.根据权利要求2所述的一种阻燃聚氨酯泡沫塑料,其特征在于,所述甲苯二异氰酸酯选用异氰酸指数100-105的甲苯二异氰酸酯,所述锡催化剂选用辛酸亚锡,所述发泡剂选自一氟二氯乙烷、五氟丙烷、正戊烷、环戊烷,CO2 和水中一种或几种。
4.根据权利要求3所述的一种阻燃聚氨酯泡沫塑料,所述阻燃剂为包覆红磷和聚磷酸铵的混合物。
5.根据权利要求1-4中任一项所述的阻燃聚氨酯泡沫塑料的制备方法,包括:
S1:将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合得第一混合物;
S2:将所述锡催化剂、所述发泡剂、所述阻燃剂加入所述第一混合物中,进行混合得第二混合物;
S3:将所述第二混合物与异氰酸酯进行混合,混合后注入膜腔,发泡熟化后得所述聚氨酯硬质泡沫塑料。
6.根据权利要求4所述的制备方法,其特征在于,所述步骤S1中,将所述聚醚多元醇一、所述聚醚多元醇二按预定比例进行混合后,在20℃-25℃条件下搅拌2-3小时;所述步骤S2中,所述发泡剂与所述第一混合物在20℃-25℃,压力为1-2bar条件下搅拌2-3小时;所述步骤S3中,所述第二混合物与所述异氰酸酯在20℃-25℃,压力为120-130bar条件下混合。
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