CN104098753A - 复合聚酯 - Google Patents
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Abstract
本发明适用于耐火材料领域,尤其涉及一种复合聚酯,该复合聚酯包括聚酯混合物、阻燃剂及异氰酸酯。本发明复合聚酯,使用聚酯多元醇、聚碳酸酯二醇作为树脂基体,在配合使用异氰酸酯、扩链剂、催化剂等,实现该复合聚酯具有良好的粘结性能,同时赋予复合聚酯优异的耐水性能。
Description
技术领域
本发明属于耐火材料领域,尤其涉及一种复合聚酯。
背景技术
聚酯海绵具有优异的机械强度和独特的耐油、抗溶剂的特性。在耐磨性、耐磨蚀、耐高温、拉伸性强、弹性好、无不良气味,广泛应用于高级车辆内饰,摩托车、建筑、汽车及空调器过滤网、火车油枕、飞机油箱填充物、摩托车服、安全服、专业配套音响、文具印台、刷具、化妆、电脑打印机墨盒、墨轮上的特殊泡绵,防毒面具、包装缓冲材料,医用绷带和医用海绵、清洁擦洗用品等领域。近年来,随着中国经济的迅速发展,国内对聚酯海绵的表观消费量迅速增长。我国的聚酯海绵产能迅速发展。
本文提到的火焰复合的聚酯泡沫组合料,主要运用于高级车辆内饰,优点有:与面料(一般为纺织类)的粘结强度高;泡沫本身的耐候性、耐水解性、耐磨性优良;复合时较少的挥发物产生,制品的VOC含量低,更加环保。而市面上的大部分产品,粘结强度不够,耐水解性比较差。
发明内容
有鉴于此,本发提供一种复合聚酯,解决现有技术中聚酯材料粘结强度不够,耐水解性差的技术问题。
本发明是这样实现的,
一种复合聚酯,包括如下重量份数的组分:
聚酯混合物 100份
阻燃剂 1-3份
异氰酸酯 35-70份
所述聚酯混合物包括聚酯多元醇、聚碳酸酯二醇、多元醇扩链剂、水、催化剂、表面活性剂及开孔剂。
本发明复合聚酯,通过使用聚酯多元醇、聚碳酸酯二醇作为树脂基体,再配合使用异氰酸酯、扩链剂、催化剂等,实现该复合聚酯具有良好的粘结性能,同时赋予复合聚酯优异的耐水性能。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
一种复合聚酯,包括如下重量份数的组分:
聚酯混合物 100份
阻燃剂 1-3份
异氰酸酯 35-70份
所述聚酯混合物包括聚酯多元醇、聚碳酸酯二醇、多元醇扩链剂、水、催化剂、表面活性剂及开孔剂。
进一步,所述聚酯混合物的成分以及各组分之间的重量份配比如下:
1、由二元羧酸与二元醇等通过缩聚反应制的己二酸酯系聚酯多元醇30~90份,该聚酯多元醇可以选自旭川化学的XCP-SP60NL;
2、聚己内酯Polycaprolactone(简称PCL),是由ε-己内酯在金属有机化合物(如四苯基锡)做催化剂,二羟基或三羟基做引发剂条件下开环聚合而成,属于聚合型聚酯10—30份,聚己内酯例如olvay公司的CAPA7203。
该聚碳酸酯二醇在复合聚酯中起到提高泡沫的耐候性、耐水解性的作用;
3、扩链剂0~5份,特别的,该扩链剂具有至少2个能与异氰酸酯起反应的氢原子且分子量为60~500,例如,乙二醇、二甘醇、丙二醇、丙三醇或季戊四醇中的一种或两种及两种以上的组合;
4、水1~5份;
5、催化剂0.1~2份,所述催化剂为胺类催化剂或者锡类催化剂,所述胺类催化剂为N,N,-二甲基环己胺、双(2-甲基氧基乙基)醚、二甲基乙醇胺、二甲基苄胺、三乙醇胺、三亚乙基二胺、五甲基二乙烯三胺、季胺盐中的一种;所述锡类催化剂为辛酸亚锡或者二月桂酸二丁基锡。
6、表面活性剂0.1~1.5份,所述表面活性剂为氧化烯烃共聚物,具体没有限制;
7、开孔剂0.5~5份;所述开孔剂为聚氧化丙烯一氧化乙烯共聚醚物型开孔剂与聚氧化烯烃一聚硅氧烷共聚物型开孔剂的混合物。
该阻燃剂为无机阻燃剂,选自氢氧化铝、硼酸盐、氢化锌等阻燃剂中的任意一种;
该异氰酸酯为2,4-甲苯二异氰酸酯(2,4-TDI)及2,6-甲苯二异氰酸酯(2,6-TDI)的混合物,其比例为80:20。
进一步,该复合聚酯还包括重量份数为1-3份的阻燃剂,例如2份的阻燃剂,该改阻燃剂选自氢氧化铝、硼酸盐、氢化锌等阻燃剂中的一种。
本发明复合聚酯,通过使用聚酯多元醇、聚碳酸酯二醇作为树脂基体,在配合使用异氰酸酯、扩链剂、催化剂等,实现该复合聚酯具有良好的粘结性能,同时赋予复合聚酯优异的耐水性能。通过上述重量份数组分符合使得本发明复合聚酯的氧指数<24,属于可燃材料。在火焰复合时,不会因为很差的耐高温性而燃烧过量,或者因为泡沫过于难燃而导致复合后粘结性太差。适当的燃烧融溶效果,使得其具有优异的粘结性能;耐水性能是因为所得到的材料属于闭孔材料,抗渗透性比较好
以下结合具体实施例对上述复合树脂及其制备方法进行详细阐述。
实施例一
本发明实施例复合聚酯包括如下重量份数的组分:
100份组合聚醚、1份阻燃剂、55份异氰酸酯。
其中,组合聚醚的配方(A组分)如下:由二元羧酸与二元醇等通过缩聚反应制的己二酸酯系聚酯多元醇25份以小分子二醇为起始剂,与碳酸二甲酯或二苯基碳酸酯进行酯交换反应制得的聚碳酸酯二醇75份,具有至少2个能与异氰酸酯起反应的氢原子且分子量为60~500的多元醇扩链剂3份,水3份,催化剂0.5份,表面活性剂0.8份,开孔剂3份。
本发明实施例的复合聚酯制备方法如下:
1、按照配方上的量在量杯中准确的加入A组分原料
2、搅拌均匀
3、按照要求的量在一次性杯子中倒入B组分(阻燃剂和异氰酸酯的混合物)
4、料的控温,把A、B料的温度控制在25℃。将B组分物料倒入发泡杯中,搅拌12s倒入发泡桶中。
5、取出泡沫,观察表面是否有脱皮现象,看其熟化是否足够。
6、测量泡沫的物性。
实施例二
本发明实施例复合聚酯包括如下重量份数的组分:
100份组合聚醚、2份阻燃剂、50份异氰酸酯。
其中,组合聚醚的配方如下:由二元羧酸与二元醇等通过缩聚反应制的己二酸酯系聚酯多元醇35份,以小分子二醇为起始剂,与碳酸二甲酯或二苯基碳酸酯进行酯交换反应制得的聚碳酸酯二醇65份,具有至少2个能与异氰酸酯起反应的氢原子且分子量为60~500的多元醇扩链剂2份,水3份,催化剂0.5份,表面活性剂0.8份,开孔剂3份。
本发明实施例复合聚酯制备方法参照实施例一。
实施例三
本发明实施例复合聚酯包括如下重量份数的组分:
100份组合聚醚、3份阻燃剂、45份异氰酸酯。
其中,组合聚醚的配方如下:由二元羧酸与二元醇等通过缩聚反应制的己二酸酯系聚酯多元醇45份以小分子二醇为起始剂,与碳酸二甲酯或二苯基碳酸酯进行酯交换反应制得的聚碳酸酯二醇55,具有至少2个能与异氰酸酯起反应的氢原子且分子量为60~500的多元醇扩链剂3份,水3份,催化剂0.5份,表面活性剂0.8份,开孔剂3份。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。
本发明实施例复合聚酯制备方法参照实施例一。
本发明实施例所制备的复合聚酯的性能参数如下:
Claims (10)
1.一种复合聚酯,包括如下重量份数的组分:
聚酯混合物 100份
阻燃剂 1-3份
异氰酸酯 35-70份
所述聚酯混合物包括聚酯多元醇、聚碳酸酯二醇、多元醇扩链剂、水、催化剂、表面活性剂及开孔剂。
2.如权利要求1所述的复合聚酯,其特征在于,所述聚酯混合物包括如下重量分数的组分:
3.如权利要求1所述的复合聚酯,其特征在于,还包括重量分数为1-3份的阻燃剂。
4.如权利要求3所述的复合聚酯,其特征在于,所述阻燃剂的重量分数为2份。
5.如权利要求1所述的复合聚酯,其特征在于,所述异氰酸酯为二苯基甲烷二异氰酸酯和多苯基多次甲基多异氰酸酯的混合物。
6.如权利要求1所述的复合聚酯,其特征在于,所述扩链剂选自乙二醇、二甘醇、丙二醇、丙三醇或季戊四醇中的一种或多种。
7.如权利要求1所述的复合聚酯,其特征在于,所述催化剂选自N,N,-二甲基环己胺、双(2-甲基氧基乙基)醚、二甲基乙醇胺、二甲基苄胺、三乙醇胺、三亚乙基二胺、五甲基二乙烯三胺、季胺盐、辛酸亚锡或二月桂酸二丁基锡中的一种。
8.如权利要求1所述的复合聚酯,其特征在于,所述开孔剂选自聚氧化丙烯—氧化乙烯共聚醚物与聚氧化烯烃—聚硅氧烷共聚物的混合物。
9.如权利要求1所述的复合聚酯,其特征在于,所述表面活性剂为氧化烯烃共聚物。
10.如权利要求1所述的复合聚酯,其特征在于,所述阻燃剂是氢氧化铝、硼酸盐、氢化锌中的一种。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107384277A (zh) * | 2017-07-26 | 2017-11-24 | 上海维凯光电新材料有限公司 | 用于太阳能背板多层膜粘结的双组分胶黏剂 |
CN107903370A (zh) * | 2017-11-15 | 2018-04-13 | 苏州博云塑业有限公司 | 一种具备耐水解性能的复合聚酯 |
CN109438667A (zh) * | 2018-11-06 | 2019-03-08 | 苏州环明电子科技有限公司 | 涂布生产用聚氨酯发泡组合料 |
Citations (5)
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CN109438667A (zh) * | 2018-11-06 | 2019-03-08 | 苏州环明电子科技有限公司 | 涂布生产用聚氨酯发泡组合料 |
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