CN112608707B - 一种双组分聚氨酯结构胶及其制备方法 - Google Patents
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Abstract
本发明公开了一种双组分聚氨酯结构胶及其制备方法,制备原料包括A组分和B组分,A组分包括蓖麻油多元醇、三氯化磷改性聚醚多元醇、芳香族聚酯多元醇、第一导热填料、第一阻燃填料和第一助剂,B组分包括异氰酸酯封端聚氨酯预聚体,多亚甲基多苯基多异氰酸酯,第二导热填料,第二阻燃填料和第二助剂;两组分按一定体积比混合制备得到本发明的双组分聚氨酯结构胶。由于三氯化磷改性聚醚多元醇是特殊的烷基亚磷酸酯稳定剂,同时是含磷多元醇阻燃剂,可减少阻燃填料用量,降低组分密度,同时提高体系的交联密度,本发明的双组分聚氨酯结构胶具备低密度、良好阻燃导热性能、高温剪切强度和低温固化性能。
Description
技术领域
本发明涉及双组分聚氨酯结构胶技术领域,具体涉及一种双组分聚氨酯结构胶及其制备方法。
背景技术
聚氨酯复合材料的强度大、耐磨性好,性能具有宽的可调节范围。聚氨酯复合材料的这些优异的性能逐渐代替金属、陶瓷并应用到汽车、工业、建筑和电子电器领域。新能源汽车电池80%的故障来源于动力电池,而造成电池故障的原因主要有绝缘损坏、短路起火,这些问题甚至可能导致爆炸造成事故。为了解决动力电池的安全问题,需要从防震、阻燃、导热等方面综合考虑,电芯和电池组间采用阻燃导热结构胶可起防震阻燃和导热的作用。节能、超强的续航能力是新能源电池的重要性能指标,轻量化已成为一种趋势要求。因此,开发一种轻量化的阻燃、导热聚氨酯结构胶对动力电池结构胶尤为重要。除抗震、阻燃和导热外,动力电池结构还应满足耐高温、耐低温和高粘接强度的性能要求。
现有技术中,专利CN108219281A公开了一种动力电池聚丙烯材料的制备方法,具有一定的导热性,阻燃等级达到UL94 V0级,但粘接剪切强度低,刚性不够,且材料中添加了卤素会对环境造成污染。专利CN109294203A公开了一种新能源汽车动力电池阻燃防火材料及其制备方法,主链引入苯基硅烷金刚烷类聚苯醚预聚体,具有较高的机械性能和耐候性。但其工艺复杂,合成条件苛刻,且制备的动力电池防护材料抗冲击性能差,添加大量阻燃填料无法起到抗冲击、防振动的效果。此外,传统的动力电池结构胶含有大量的高密度的阻燃填料和导热填料会增大能耗。
因此,有必要提供一种双组分聚氨酯结构胶及其制备方法,制备出具备低密度,韧性好,硬度大,具有良好的触变,无毒性,阻燃和导热性好,具有较高的高温剪切强度和低温固化性能的动力电池结构胶,对新能量锂电的安全、动力电池行业的发展尤为重要。
发明内容
本发明的目的之一在于,提供一种双组分聚氨酯结构胶,具备低密度、优异的阻燃和导热性能、较高的高温剪切强度和低温固化性能。
本发明的目的之二在于,提供一种双组分聚氨酯结构胶的制备方法,制备得到的双组分聚氨酯结构胶具备低密度、优异的阻燃和导热性能、较高的高温剪切强度和低温固化性能。
为实现上述目的,本发明提供了一种双组分聚氨酯结构胶,包括A组分和B组分,
以重量份数计,A组分的制备原料包括以下组分:
以重量份数计,B组分的制备原料包括以下组分:
与现有技术相比,本发明的双组分聚氨酯结构胶,由于蓖麻油多元醇具有燃点高、凝固点低、热稳定性好,大大提高了材料的阻燃性能,三氯化磷改性聚醚多元醇是一种特殊的烷基亚磷酸酯稳定剂,同时是含磷多元醇阻燃剂,具有较高的热稳定性,耐侯性及耐水解稳定性,显著增强材料的阻燃性能和剪切强度,三氯化磷改性聚醚多元醇加入到A组分中可减少阻燃填料的用量,组分中的固体成分比例降低,液体成分比例提高,从而使得组分的密度降低,芳香族聚酯多元醇具有优异的耐水解性、热稳定性及伯羟基特性,显著提高胶水在高温条件下对各种金属和塑料的粘着力,从而提高材料的高温剪切强度,三氯化磷改性聚醚多元醇与结构胶中的异氰酸酯封端聚氨酯预聚体组分具有协同作用,A组分和B组分混合后,三氯化磷改性聚醚多元醇能够促进异氰酸酯封端聚氨酯预聚体在体系中的交联反应的发生,提高反应的交联密度,二者之间具有协同作用,显著提升材料的剪切强度和阻燃性能,本发明的双组分聚氨酯结构胶具备低密度、优异的阻燃和导热性能、较高的高温剪切强度和低温固化性能。
较佳地,本发明的蓖麻油多元醇的平均数均分子量为910~930,平均官能度为2.7。
较佳地,本发明的三氯化磷改性聚醚多元醇由三氯化磷与小分子二元醇反应制得,小分子二元醇包括一缩二丙二醇、一缩二乙二醇或1,4-丁二醇。三氯化磷改性聚醚多元醇是一种特殊的烷基亚磷酸酯稳定剂,同时是含磷多元醇阻燃剂,加入到A组分中可以减少阻燃填料的用量,降低组分的密度。
较佳地,本发明的芳香族聚酯多元醇的分子量为600~4000,由芳香族二元羧酸与多元醇经缩聚反应制得。芳香族聚酯多元醇具有良好的耐高温性。
较佳地,本发明的芳香族聚酯多元醇选自PS-1752、PS-2002、PN-110、PHN-56、PH-56和PD-56中的一种或多种。芳香族聚酯多元醇具有优异的耐水解性、热稳定性及伯羟基特性,提高了对各种金属和塑料的粘着力。
较佳地,本发明的异氰酸酯封端聚氨酯预聚体中的NCO和OH的反应摩尔比为1.5~4:1。
较佳地,本发明的异氰酸酯封端聚氨酯预聚体由分子量为600~2000的聚醚多元醇与二异氰酸酯反应制得,二异氰酸酯为二苯甲基二异氰酸酯、甲苯二异氰酸酯和六亚甲基二异氰酸酯中的任一种。
较佳地,本发明的异氰酸酯封端聚氨酯预聚体通过以下方法制得:将分子量600~2000分子量的聚醚多元醇真空120℃脱水1h,再与二苯甲基二异氰酸酯、甲苯二异氰酸酯或六亚甲基二异氰酸酯在80~100℃反应4~8h制得。
较佳地,本发明的第一导热填料和第二导热填料各自独立为氧化镁或氮化硼。
较佳地,导热填料氧化镁为宽度2~10μm、长度10~20μm的片状结构;导热填料氮化硼为宽度4~10μm、长度10~50μm的片状结构。
较佳地,本发明的第一阻燃填料和第二阻燃填料各自独立为氢氧化铝、次磷酸铝和三聚氰胺尿酸盐中的一种或多种。
较佳地,本发明的第一助剂和第二助剂各自独立的选自触变剂、除水剂、增白剂和催化剂中的至少一种。
较佳地,本发明的触变剂为有机膨润土或气相白炭黑,除水剂为无水氧化钙或3A分子筛活化粉,增白剂为钛白粉,催化剂为辛酸亚锡、三甲基亚胺和二月桂酸二丁基锡中的一种或多种。
较佳地,本发明的A组分的密度为1.2~1.60kg/m3,粘度为2wcp~20wcp。
较佳地,本发明的B组分的密度为1.2~1.65kg/m3,粘度为2wcp~20wcp。
本发明还提供了一种双组分聚氨酯结构胶的制备方法,包括以下步骤:
(1)制备A组分:
将蓖麻油多元醇、三氯化磷改性聚醚多元醇、芳香族聚酯多元醇、第一导热填料、第一阻燃填料和第一助剂混合均匀后制得A组分;
(2)制备B组分:
将异氰酸酯封端聚氨酯预聚体、多亚甲基多苯基多异氰酸酯、第二导热填料、第二阻燃填料和第二助剂混合均匀后制得B组分;
(3)复配:
将A组分和B组分按体积比1:(0.8~1.2)混合均匀制得双组分聚氨酯结构胶。
具体实施方式
为了详细说明本发明的技术内容,以下结合实施方式作进一步说明。
实施例一
双组分聚氨酯结构胶的制备方法,包括以下步骤:
(1)制备A组分:
以重量份数计,A组分的制备原料包括以下组分:
其中,第一助剂包括以下组分:
其中,选用的蓖麻油多元醇分子量为930,三氯化磷改性聚醚多元醇选用三(一缩二丙二醇)亚磷酸酯,芳香族聚酯多元醇为分子量为600的PS-1752,第一导热填料为长度5μm、宽度2μm的片状氧化镁,第一阻燃填料为5份过200目筛的氢氧化铝颗粒和5份三聚氰胺尿酸酯,第一助剂中触变剂为气相白炭黑,除水剂为3A分子筛活化粉,增白剂为钛白粉,催化剂为辛酸亚锡;
将上述组分充分混合均匀制备得到A组分,抽真空排气泡后测得粘度为6.5wcp;
(2)制备B组分:
以重量份数计,B组分的制备原料包括以下组分:
其中,异氰酸酯封端聚氨酯预聚体中的-NCO和-OH的反应摩尔比(即R值)为2.6:1,第二导热填料为长度5μm、宽度2μm的片状氧化镁,第二阻燃填料为过200目筛的氢氧化铝颗粒,第二助剂为触变剂,触变剂具体选用气相白炭黑;
异氰酸酯封端聚氨酯预聚体通过以下方法制得:将分子量600~2000分子量的聚醚多元醇真空120℃脱水1h,再与二苯甲基二异氰酸酯、甲苯二异氰酸酯或六亚甲基二异氰酸酯在80~100℃反应4~8h制得;
将上述组分充分混合均匀制备得到B组分,抽真空排气泡后测得粘度为13.5wcp;
(3)复配:
将A组分和B组分按体积比1:1混合均匀制得双组分聚氨酯结构胶。
实施例二至十一和对比例一至三的双组分聚氨酯结构胶各成分及含量如表一所示,实施例二至十一和对比例一至三的双组分聚氨酯结构胶的制备方法参照实施例一的配制方法进行。将制备得到的实施例二至十一和对比例一至三的的双组分聚氨酯结构胶分别进行各项性能测试,测试结果如表二所示。
其中,硬度根据GB/T 2411-2008《塑料和硬橡胶使用硬度计测定压痕硬度(邵氏硬度)》标准进行测量,弯曲变形根据GB/T 2567-2008《树脂浇铸体性能试验方法》标准进行弯曲变形测试,剪切强度根据GB/T 13936-2014《硫化橡胶与金属粘接拉伸剪切强度测定方法》进行测量,阻燃等级根据阻燃UL94-V0的测试标准进行测定,导热系数根据GB 3399-1982《塑料导热系数试验方法护热平板法》进行测定。
表一:实施例和对比例的双组分聚氨酯结构胶各成分及含量
表二:双组分聚氨酯结构胶性能测试结果
结合表一和二的数据所示,实施例一至十一和对比例一至三相比较,实施例一至十一的硬度、弯曲变形、剪切强度和导热能力均好于对比例一至三,实施例一至十一和对比例一至三相比较,实施例一至十一在0℃下的表干时间均快于对比例一至三,说明本发明的双组分聚氨酯结构胶具有良好的低温固化性能。实施例一和对比例二相比较,对比例二缺少组分三氯化磷改性聚醚多元醇,对比例二需要添加较大量的阻燃填料,阻燃等级才能达到UL94 V0级,说明三氯化磷改性聚醚多元醇加入到A组分中可减少阻燃填料的用量,降低组分的密度;实施例一和对比例三相比较,对比例三缺少组分芳香族聚酯多元醇,对比例三的高温剪切强度远不如实施例一,实施例一和对比例一相比较,对比例一的A组分中的聚酯多元醇为聚己内酯多二醇,其不含有苯环结构,耐高温性能较弱,虽然其阻燃性能可达到UL94 V0级,但是其高温剪切强度也远不如实施例一,说明芳香族聚酯多元醇显著提高胶水在高温条件下对各种金属和塑料的粘着力,从而提高材料的高温剪切强度。
综上所述,本发明的双组分聚氨酯结构胶,由于蓖麻油多元醇具有燃点高、凝固点低、热稳定性好,大大提高了材料的阻燃性能,三氯化磷改性聚醚多元醇是一种特殊的烷基亚磷酸酯稳定剂,同时是含磷多元醇阻燃剂,具有较高的热稳定性,耐侯性及耐水解稳定性,显著增强材料的阻燃性能和剪切强度,三氯化磷改性聚醚多元醇加入到A组分中可减少阻燃填料的用量,组分中的固体成分比例降低,液体成分比例提高,从而使得组分的密度降低,芳香族聚酯多元醇具有优异的耐水解性、热稳定性及伯羟基特性,显著提高胶水在高温条件下对各种金属和塑料的粘着力,从而提高材料的高温剪切强度,导热填料选用氮化硼,显著提高了材料的导热系数,增强阻燃性能,三氯化磷改性聚醚多元醇与结构胶中的异氰酸酯封端聚氨酯预聚体组分具有协同作用,A组分和B组分混合后,三氯化磷改性聚醚多元醇能够促进异氰酸酯封端聚氨酯预聚体在体系中的交联反应的发生,提高反应的交联密度,显著提升材料的剪切强度和阻燃性能,本发明的双组分聚氨酯结构胶具备低密度、优异的阻燃和导热性能、较高的高温剪切强度和低温固化性能。
以上所揭露的仅为本发明的较佳实例而已,不能以此来限定本发明之权利范围,因此依本发明权利要求所作的等同变化,均属于本发明所涵盖的范围。
Claims (6)
1.一种双组分聚氨酯结构胶,其特征在于,包括A组分和B组分,所述A组分和所述B组分的体积比1:(0.8~1.2),
以重量份数计,所述A组分的制备原料包括以下组分:
蓖麻油多元醇 10份~30份;
三(一缩二丙二醇)亚磷酸酯 10份~40份;
芳香族聚酯多元醇 2份~10份;
第一导热填料 15份~40份;
三聚氰胺尿酸盐 10份~30份;
第一助剂 0份~30份,
以重量份数计,所述B组分的制备原料包括以下组分:
异氰酸酯封端聚氨酯预聚体 5份~30份;
多亚甲基多苯基多异氰酸酯 30份~60份;
第二导热填料 15份~40份;
氢氧化铝 10份~30份;
第二助剂 0份~6份;
所述芳香族聚酯多元醇的分子量为600~4000,由芳香族二元羧酸与多元醇经缩聚反应制得,所述异氰酸酯封端聚氨酯预聚体由分子量为600~2000的聚醚多元醇与二异氰酸酯反应制得,所述二异氰酸酯为二苯甲基二异氰酸酯、甲苯二异氰酸酯和六亚甲基二异氰酸酯中的任一种。
2.如权利要求1所述的双组分聚氨酯结构胶,其特征在于,所述蓖麻油多元醇的平均数均分子量为910~930,平均官能度为2.7。
3.如权利要求1所述的双组分聚氨酯结构胶,其特征在于,所述异氰酸酯封端聚氨酯预聚体中的-NCO和-OH的反应摩尔比为1.5~4:1。
4.如权利要求1所述的双组分聚氨酯结构胶,其特征在于,所述第一导热填料和所述第二导热填料各自独立为氧化镁或氮化硼。
5.如权利要求1所述的双组分聚氨酯结构胶,其特征在于,所述第一助剂和所述第二助剂各自独立的选自触变剂、除水剂、增白剂和催化剂中的至少一种。
6.一种如权利要求1所述的双组分聚氨酯结构胶的制备方法,其特征在于,包括以下步骤:
(1)制备A组分:
将蓖麻油多元醇、三(一缩二丙二醇)亚磷酸酯、芳香族聚酯多元醇、第一导热填料、三聚氰胺尿酸盐和第一助剂混合均匀后制得所述A组分;
(2)制备B组分:
将异氰酸酯封端聚氨酯预聚体、多亚甲基多苯基多异氰酸酯、第二导热填料、氢氧化铝和第二助剂混合均匀后制得所述B组分;
(3)复配:
将所述A组分和所述B组分按体积比1:(0.8~1.2)混合均匀制得双组分聚氨酯结构胶。
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105885767A (zh) * | 2016-06-24 | 2016-08-24 | 绵阳惠利电子材料有限公司 | Mdi基聚氨酯电子灌封胶与其制备方法和应用方法 |
CN108623771A (zh) * | 2017-03-15 | 2018-10-09 | 科思创德国股份有限公司 | 羟基封端的聚氨酯预聚体及其制备方法 |
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CN111793459B (zh) * | 2020-06-22 | 2023-03-28 | 安徽南大星新材料科技有限公司 | 新型阻燃低收缩聚氨酯泡沫填缝剂 |
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