CN109265976A - 具有导热阻燃性能的聚氨酯泡棉 - Google Patents
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Abstract
本发明公开了一种具有导热阻燃性能的聚氨酯泡棉,包括如下按重量份计的各组分:季戊四醇聚醚31~39份、甘油聚醚23~26份、异氰酸酯22~34份、聚碳酸酯二醇12~17份、聚乙烯9~14份、催化剂6~11份、发泡剂10~15份和水8~13份。本发明具有更优秀的导热性、阻燃性,且产品发泡质量好,避免了发泡出气不良,气孔粗糙的问题,进一步提高了泡棉的质量。
Description
技术领域
本发明属于泡棉技术领域,具体涉及一种具有导热阻燃性能的聚氨酯泡棉。
背景技术
泡棉是塑料粒子发泡过的材料,带有许许多多小泡孔的高分子聚合物,固相是聚合物基质,小泡孔中充满气体,分为聚氨酯泡棉、防静电泡棉、导电泡棉等,具有弹性好、重量轻、快速压敏固定、使用方便、弯曲自如、体积超薄、性能可靠等一系列特点。聚氨酯泡棉又称聚氨酯弹性体,聚氨酯是一种新兴的有机高分子材料,被誉为“第五大塑料”,因其卓越的性能而被广泛应用于国民经济众多领域,属于特种合成橡胶,在分子链中含有较多氨基甲酸范围的弹性聚合物,其原材料品种繁多,配方多样,可调范围很大。
发明内容
为解决现有技术的不足,本发明的目的在于提供一种具有优秀的导热性、阻燃性,且产品质量高的具有导热阻燃性能的聚氨酯泡棉。
为了实现上述目标,本发明采用如下的技术方案:
具有导热阻燃性能的聚氨酯泡棉,包括如下按重量份计的各组分:季戊四醇聚醚31~39份、甘油聚醚23~26份、异氰酸酯22~34份、聚碳酸酯二醇12~17份、聚乙烯9~14份、催化剂6~11份、发泡剂10~15份和水8~13份。
优选地,前述异氰酸酯为甲苯二异氰酸酯、1-6已二异氰酸酯和苯二亚甲基二异氰酸酯中的一种或多种。
再优选地,前述催化剂包括质量比为(2~4):(1~3)的锡催化剂和胺催化剂,锡催化剂为二月桂酸二丁基锡、单丁基氧化锡、二月硅酸二辛基锡和三丁基氢化锡中的一种或多种,所述胺催化剂为三乙烯二胺或双(2-二甲基氨乙基)醚。
更优选地,前述发泡剂为二氯甲烷或一氟三氯甲烷。
前述的具有导热阻燃性能的聚氨酯泡棉的制备方法,包括如下步骤:
S1、将上述各材料均置于保温柜中5~6h;
S2、取出各材料,并按照配方要求准确称量好备用;
S3、将季戊四醇聚醚和甘油聚醚倒入发泡机的搅拌桶中,缓慢搅拌,边搅拌边依次加入聚碳酸酯二醇、聚乙烯、催化剂、发泡剂和水,混合均匀后停止搅拌;
S4、将异氰酸酯快速倒入搅拌桶内,迅速开启搅拌电机,高速混合搅拌6~8s后将混合物倒入模型中,开始发泡,发泡结束后,在模型中干燥静置3~5min,得到发泡混合物;
S5、将发泡混合物进行干燥固化处理,固化时间为5~6h,得到聚氨酯泡棉。
优选地,前述步骤S1中,保温柜的温度设置为15~17℃。
再优选地,前述步骤S2中,对各材料的称量工作控制在发泡加料前的1.5~3min内完成。
更优选地,前述步骤S3中,缓慢搅拌的搅拌速度为350~400转/min。
进一步优选地,前述步骤S3中,所有材料的加料过程控制在1.2~1.5min完成。
具体地,前述步骤S4中,升高后的搅拌速度为1100~1400转/min。
本发明的有益之处在于: 本发明的具有导热阻燃性能的聚氨酯泡棉的制备过程易操作,具有优秀的导热性、阻燃性,且产品质量高;在称量工作之前先将材料放置保温柜中进行保温,可以避免室温对发泡过程的影响,并且对各材料的称量工作和所有材料的加料过程均控制在短时间内完成,也可防止材料温度升高而影响发泡效果,提高了产品的发泡质量;将异氰酸酯快速倒入搅拌桶内,迅速开始高速搅拌,可使各材料混合均匀,且可避免发泡出气不良,气孔粗糙的问题,进一步提高了泡棉的质量。
具体实施方式
以下结合具体实施例对本发明作具体的介绍。
实施例1
具有导热阻燃性能的聚氨酯泡棉,包括如下按重量份计的各组分:季戊四醇聚醚31份、甘油聚醚23份、甲苯二异氰酸酯22份、聚碳酸酯二醇12份、聚乙烯9份、催化剂6份、发泡剂10份和水8份,催化剂包括质量比为2:1的锡催化剂和胺催化剂,锡催化剂为二月桂酸二丁基锡,胺催化剂为三乙烯二胺,发泡剂为二氯甲烷。
前述的具有导热阻燃性能的聚氨酯泡棉的制备方法,包括如下步骤:
S1、将上述各材料均置于保温柜中5h,温度设置为15℃;
S2、取出各材料,并按照配方要求准确称量好备用,对各材料的称量工作控制在发泡加料前的1.5min内完成;
S3、将季戊四醇聚醚和甘油聚醚倒入发泡机的搅拌桶中,缓慢搅拌,搅拌速度为350转/min,边搅拌边依次加入聚碳酸酯二醇、聚乙烯、催化剂、发泡剂和水,所有材料的加料过程控制在1.2min完成,混合均匀后停止搅拌;
S4、将异氰酸酯快速倒入搅拌桶内,迅速开启搅拌电机,搅拌速度为1100转/min,高速混合搅拌6s后将混合物倒入模型中,开始发泡,发泡结束后,在模型中干燥静置3min,得到发泡混合物;
S5、将发泡混合物进行干燥固化处理,固化时间为5h,得到聚氨酯泡棉。
实施例2
具有导热阻燃性能的聚氨酯泡棉,包括如下按重量份计的各组分:季戊四醇聚醚39份、甘油聚醚26份、1-6已二异氰酸酯34份、聚碳酸酯二醇17份、聚乙烯14份、催化剂11份、发泡剂15份和水13份。催化剂包括质量比为4:3的锡催化剂和胺催化剂,锡催化剂为单丁基氧化锡,胺催化剂为三乙烯二胺,发泡剂为二氯甲烷。
前述的具有导热阻燃性能的聚氨酯泡棉的制备方法,包括如下步骤:
S1、将上述各材料均置于保温柜中6h,温度设置为17℃;
S2、取出各材料,并按照配方要求准确称量好备用,对各材料的称量工作控制在发泡加料前的3min内完成;
S3、将季戊四醇聚醚和甘油聚醚倒入发泡机的搅拌桶中,缓慢搅拌,搅拌速度为400转/min,边搅拌边依次加入聚碳酸酯二醇、聚乙烯、催化剂、发泡剂和水,所有材料的加料过程控制在1.5min完成,混合均匀后停止搅拌;
S4、将异氰酸酯快速倒入搅拌桶内,迅速开启搅拌电机,搅拌速度为1400转/min,高速混合搅拌8s后将混合物倒入模型中,开始发泡,发泡结束后,在模型中干燥静置5min,得到发泡混合物;
S5、将发泡混合物进行干燥固化处理,固化时间为6h,得到聚氨酯泡棉。
实施例3
具有导热阻燃性能的聚氨酯泡棉,包括如下按重量份计的各组分:季戊四醇聚醚35份、甘油聚醚24份、苯二亚甲基二异氰酸酯28份、聚碳酸酯二醇15份、聚乙烯12份、催化剂9份、发泡剂12份和水11份。催化剂包括质量比为3:2的锡催化剂和胺催化剂,锡催化剂为二月硅酸二辛基锡,胺催化剂为双(2-二甲基氨乙基)醚,发泡剂为一氟三氯甲烷。
前述的具有导热阻燃性能的聚氨酯泡棉的制备方法,包括如下步骤:
S1、将上述各材料均置于保温柜中5.5h,温度设置为16℃;
S2、取出各材料,并按照配方要求准确称量好备用,对各材料的称量工作控制在发泡加料前的2min内完成;
S3、将季戊四醇聚醚和甘油聚醚倒入发泡机的搅拌桶中,缓慢搅拌,搅拌速度为380转/min,边搅拌边依次加入聚碳酸酯二醇、聚乙烯、催化剂、发泡剂和水,所有材料的加料过程控制在1.3min完成,混合均匀后停止搅拌;
S4、将异氰酸酯快速倒入搅拌桶内,迅速开启搅拌电机,搅拌速度为1200转/min,高速混合搅拌7s后将混合物倒入模型中,开始发泡,发泡结束后,在模型中干燥静置4min,得到发泡混合物;
S5、将发泡混合物进行干燥固化处理,固化时间为5.5h,得到聚氨酯泡棉。
通过和市售的普通聚氨酯泡面对比,本发明具有更优秀的导热性、阻燃性,且产品发泡质量好,避免了发泡出气不良,气孔粗糙的问题,进一步提高了泡棉的质量。
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解,上述实施例不以任何形式限制本发明,凡采用等同替换或等效变换的方式所获得的技术方案,均落在本发明的保护范围内。
Claims (10)
1.具有导热阻燃性能的聚氨酯泡棉,其特征在于,包括如下按重量份计的各组分:季戊四醇聚醚31~39份、甘油聚醚23~26份、异氰酸酯22~34份、聚碳酸酯二醇12~17份、聚乙烯9~14份、催化剂6~11份、发泡剂10~15份和水8~13份。
2.根据权利要求1所述的具有导热阻燃性能的聚氨酯泡棉,其特征在于,所述异氰酸酯为甲苯二异氰酸酯、1-6已二异氰酸酯和苯二亚甲基二异氰酸酯中的一种或多种。
3.根据权利要求1所述的具有导热阻燃性能的聚氨酯泡棉,其特征在于,所述催化剂包括质量比为(2~4):(1~3)的锡催化剂和胺催化剂,所述锡催化剂为二月桂酸二丁基锡、单丁基氧化锡、二月硅酸二辛基锡和三丁基氢化锡中的一种或多种,所述胺催化剂为三乙烯二胺或双(2-二甲基氨乙基)醚。
4.根据权利要求1所述的具有导热阻燃性能的聚氨酯泡棉,其特征在于,所述发泡剂为二氯甲烷或一氟三氯甲烷。
5.如权利要求1~4中任一项所述的具有导热阻燃性能的聚氨酯泡棉的制备方法,其特征在于,包括如下步骤:
S1、将上述各材料均置于保温柜中5~6h;
S2、取出各材料,并按照配方要求准确称量好备用;
S3、将季戊四醇聚醚和甘油聚醚倒入发泡机的搅拌桶中,缓慢搅拌,边搅拌边依次加入聚碳酸酯二醇、聚乙烯、催化剂、发泡剂和水,混合均匀后停止搅拌;
S4、将异氰酸酯快速倒入搅拌桶内,迅速开启搅拌电机,高速混合搅拌6~8s后将混合物倒入模型中,开始发泡,发泡结束后,在模型中干燥静置3~5min,得到发泡混合物;
S5、将发泡混合物进行干燥固化处理,固化时间为5~6h,得到聚氨酯泡棉。
6.根据权利要求5所述的具有导热阻燃性能的聚氨酯泡棉的制备方法,其特征在于,所述步骤S1中,保温柜的温度设置为15~17℃。
7.根据权利要求5所述的具有导热阻燃性能的聚氨酯泡棉的制备方法,其特征在于,所述步骤S2中,对各材料的称量工作控制在发泡加料前的1.5~3min内完成。
8.根据权利要求5所述的具有导热阻燃性能的聚氨酯泡棉的制备方法,其特征在于,所述步骤S3中,缓慢搅拌的搅拌速度为350~400转/min。
9.根据权利要求5所述的具有导热阻燃性能的聚氨酯泡棉的制备方法,其特征在于,所述步骤S3中,所有材料的加料过程控制在1.2~1.5min完成。
10.根据权利要求5所述的具有导热阻燃性能的聚氨酯泡棉的制备方法,其特征在于,所述步骤S4中,升高后的搅拌速度为1100~1400转/min。
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