CN109609014A - 一种ito镀膜表面聚氨酯高附着力耐磨涂层及其制备方法 - Google Patents

一种ito镀膜表面聚氨酯高附着力耐磨涂层及其制备方法 Download PDF

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CN109609014A
CN109609014A CN201811496368.6A CN201811496368A CN109609014A CN 109609014 A CN109609014 A CN 109609014A CN 201811496368 A CN201811496368 A CN 201811496368A CN 109609014 A CN109609014 A CN 109609014A
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high adhesion
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魏超
王志强
顾剑东
孟军锋
杨茂林
周敏
施颖波
杨康
孙哲
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North Paint and Coatings Industry Research and Design Institute
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Abstract

本发明公开了一种ITO镀膜表面聚氨酯高附着力耐磨涂层及其制备方法，该涂层由以下重量百分比含量的原料组成：自制预聚物40‑70%、固化剂5‑20%、溶剂A 20‑50%、催化剂A 0.01‑1%、助剂0.05‑2%，所述自制预聚物由以下重量百分比含量的原料组成：聚合物多元醇10‑30%、扩链剂2‑5%、多异氰酸酯10‑40%、催化剂B 0.01‑0.05%、溶剂B 40‑50%。本发明的ITO镀膜表面聚氨酯高附着力耐磨涂层由自制预聚物、固化剂、溶剂A、催化剂A和助剂组成，其中自制预聚物由聚合物多元醇、扩链剂、多异氰酸酯、催化剂B和溶剂B组成，通过各组分特定的比例配合，形成的涂层不会造成ITO膜的开裂，附着力良好，且耐磨性良好，可以同时满足涂层耐磨性以及高附着力，对飞行器等透明件表面的ITO膜起到很好的保护作用。

Description

一种ITO镀膜表面聚氨酯高附着力耐磨涂层及其制备方法
技术领域
本发明属于飞行器透明件表面保护技术领域，具体涉及一种ITO镀膜表面聚氨酯高附着力耐磨涂层及其制备方法。
背景技术
在航空、航天领域，飞行器透明件采用有机玻璃制备，在飞行过程中与空气中的颗粒摩擦容易产生静电，如果电荷积累过多会对飞行器造成一定的危害，所以通常对透明件表面溅射制备一层ITO薄膜，ITO薄膜是一种n型导电材料，具有高的导电率、高透光率、高机械硬度和良好的化学稳定性，其还兼具隐身功能。但ITO薄膜在受到外力作用下容易开裂甚至从基材脱落，因此需开发一种具有高附着力耐磨的涂层对其进行保护。
目前解决该问题的主要方法有两种，一是在ITO薄膜上涂覆一层丙烯酸涂层，该丙烯酸涂层附着力良好，但容易造成ITO膜的开裂，且丙烯酸涂层的耐磨性差；二是采用多层的方法，主要是在ITO薄膜上先涂覆一层有机硅、丙烯酸或者低拉伸模量的聚氨酯作为底涂层，再在上面涂覆一层硬质的聚氨酯来提供耐磨性，但这种方法施工工艺要求严格，程序复杂，后期涂层之间的层间附着力也会出现下降的情况。
发明内容
本发明的目的是为了解决现有技术中存在的技术问题，提供一种耐磨性好、附着力高且不会造成ITO膜开裂的ITO镀膜表面聚氨酯高附着力耐磨涂层。
本发明的另一个目的是为了提供一种ITO镀膜表面聚氨酯高附着力耐磨涂层的制备方法。
为了达到上述目的，本发明采用以下技术方案：一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物40-70%、固化剂5-20%、溶剂A20-50%、催化剂A 0.01-1%、助剂0.05-2%，所述自制预聚物由以下重量百分比含量的原料组成：聚合物多元醇10-30%、扩链剂2-5%、多异氰酸酯10-40%、催化剂B 0.01-0.05%、溶剂B40-50%。
进一步地，所述固化剂为N-75、N-3390中的一种。
进一步地，所述溶剂A和溶剂B分别为DBE、乙酸（2-丁氧基乙）酯、二甲苯、环己酮、乙酸乙酯、乙二醇乙醚醋酸酯、乙酸丁酯、丁酮、丙酮中的一种或几种。
进一步地，所述催化剂A和催化剂B分别为二月桂酸二丁基锡、二醋酸二丁基锡、辛酸亚锡中的一种。
进一步地，所述助剂为BYK-306、BYK-358N、BYK-333、BYK-378、BYK-4510中的一种或几种。
进一步地，所述聚合物多元醇为CAPA3050、CAPA3000、CAPA2085、CAPA2000、N-330、300E、PPG1000、PPG600、T-5651中的一种或几种。
进一步地，所述扩链剂为1，4-丁二醇、1，6-己二醇、丙三醇、三羟甲基丙烷、三异丙醇胺的一种或几种。
进一步地，所述多异氰酸酯为甲苯二异氰酸酯、二甲苯烷二异氰酸酯、二环己基甲烷二异氰酸酯、已二异氰酸酯的一种或几种。
一种ITO镀膜表面聚氨酯高附着力耐磨涂层的制备方法，该方法包括以下步骤：
（1）制备自制预聚物：在反应釜中加入聚合物多元醇和扩链剂，然后在反应釜中加入一部分溶剂B后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至40-50℃下保温继续搅拌1h，加入催化剂B，在60-70℃下边搅拌边用滴液漏斗滴加多异氰酸酯，2h滴加完毕，升温至70-80℃保温继续反应2h，降温至40℃以下加入剩余部分溶剂，升温至70-80℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和固化剂混合后加入溶剂A搅拌均匀，然后加入催化剂A，熟化10分钟后加入助剂搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
本发明相对现有技术具有以下有益效果：本发明的ITO镀膜表面聚氨酯高附着力耐磨涂层由自制预聚物、固化剂、溶剂A、催化剂A和助剂组成，其中自制预聚物由聚合物多元醇、扩链剂、多异氰酸酯、催化剂B和溶剂B组成，通过各组分特定的比例配合，形成的涂层不会造成ITO膜的开裂，附着力良好，且耐磨性良好，可以同时满足涂层耐磨性以及高附着力，对飞行器等透明件表面的ITO膜起到很好的保护作用。
具体实施方式
下面结合具体实施例对本发明作进一步说明。
实施例1
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物40%、N-75 20%、DBE 38.95%、二月桂酸二丁基锡1%、BYK-306 0.05%。其中自制预聚物由以下重量百分比含量的原料组成：CAPA3050（聚己内酯三醇） 4.99%、CAPA2000（聚己内酯二醇）10%、1，4-丁二醇5%、甲苯二异氰酸酯30%、二月桂酸二丁基锡 0.01%、乙酸丁酯20%、二甲苯 30%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加入CAPA3050（聚己内酯三醇）、CAPA2000（聚己内酯二醇）和1，4-丁二醇，然后在反应釜中加入乙酸丁酯后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至40℃下保温继续搅拌1h，加入二月桂酸二丁基锡，在60℃下边搅拌边用滴液漏斗滴加甲苯二异氰酸酯，2h滴加完毕，升温至70℃保温继续反应2h，降温至40℃以下加入二甲苯，升温至70℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-75混合后加入DBE搅拌均匀，然后加入二月桂酸二丁基锡，熟化10分钟后加入BYK-306搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
实施例2
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物70%、N-3390 7.99%、乙酸（2-丁氧基乙）酯5%、乙酸丁酯15%、二醋酸二丁基锡0.01%、BYK-358N 1%、BYK-378 1%。其中自制预聚物由以下重量百分比含量的原料组成：CAPA3000（聚己内酯三醇） 10%、CAPA2085 （聚己内酯二醇）20%、1，6-己二醇2%、二甲苯烷二异氰酸酯27.95%、二醋酸二丁基锡0.05%、DBE 20%、环己酮20%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加入CAPA3000（聚己内酯三醇）、CAPA2085（聚己内酯二醇）和1，6-己二醇，然后在反应釜中加入DBE后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至50℃下保温继续搅拌1h，加入二醋酸二丁基锡，在70℃下边搅拌边用滴液漏斗滴加二甲苯烷二异氰酸酯，2h滴加完毕，升温至80℃保温继续反应2h，降温至40℃以下加入环己酮，升温至80℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-3390混合后加入乙酸（2-丁氧基乙）酯、乙酸丁酯搅拌均匀，然后加入二醋酸二丁基锡，熟化10分钟后加入BYK-358N、BYK-378搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
实施例3
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物43%、N-75 5%、二甲苯50%、辛酸亚锡0.5%、BYK-333 1.5%。其中自制预聚物由以下重量百分比含量的原料组成：CAPA2000（聚己内酯二醇） 10%、丙三醇5%、二环己基甲烷二异氰酸酯16.96%、已二异氰酸酯20%、辛酸亚锡 0.04%、乙酸（2-丁氧基乙）酯20%、丁酮28%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加入CAPA2000（聚己内酯二醇）和丙三醇，然后在反应釜中加入乙酸（2-丁氧基乙）酯后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至45℃下保温继续搅拌1h，加入辛酸亚锡，在65℃下边搅拌边用滴液漏斗滴加二环己基甲烷二异氰酸酯、已二异氰酸酯，2h滴加完毕，升温至75℃保温继续反应2h，降温至40℃以下加入丁酮，升温至75℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-75混合后加入二甲苯搅拌均匀，然后加入辛酸亚锡，熟化10分钟后加入BYK-333搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
实施例4
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物54%、N-3390 10%、环己酮10%、乙二醇乙醚醋酸酯15%、丁酮10%、二月桂酸二丁基锡0.4%、BYK-378 0.6%。其中自制预聚物由以下重量百分比含量的原料组成：N-330（聚醚三元醇） 10%、三羟甲基丙烷3%、已二异氰酸酯40%、二月桂酸二丁基锡 0.02%、乙二醇乙醚醋酸酯46.98%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加N-330（聚醚三元醇）和三羟甲基丙烷，然后在反应釜中加入一半乙二醇乙醚醋酸酯后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至40℃下保温继续搅拌1h，加入二月桂酸二丁基锡，在70℃下边搅拌边用滴液漏斗滴加已二异氰酸酯，2h滴加完毕，升温至80℃保温继续反应2h，降温至40℃以下加入一半乙二醇乙醚醋酸酯，升温至70℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-3390混合后加入环己酮、乙二醇乙醚醋酸酯、丁酮搅拌均匀，然后加入二月桂酸二丁基锡，熟化10分钟后加入BYK-378搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
实施例5
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物44%、N-75 16%、乙酸乙酯39%、二醋酸二丁基锡0.1%、BYK-4510 0.9%。其中自制预聚物由以下重量百分比含量的原料组成：PPG1000（聚四氢呋喃醚二醇） 20%、三异丙醇胺2.96%、甲苯二异氰酸酯32%、二醋酸二丁基锡0.04%、乙酸丁酯20%、环己酮25%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加PPG1000（聚四氢呋喃醚二醇）和三异丙醇胺，然后在反应釜中加入乙酸丁酯后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至50℃下保温继续搅拌1h，加入二醋酸二丁基锡，在60℃下边搅拌边用滴液漏斗滴加甲苯二异氰酸酯，2h滴加完毕，升温至70℃保温继续反应2h，降温至40℃以下加入环己酮，升温至80℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-75混合后加入乙酸乙酯搅拌均匀，然后加入二醋酸二丁基锡，熟化10分钟后加入BYK-4510搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
实施例6
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物60%、N-3390 14.5%、乙二醇乙醚醋酸酯25%、辛酸亚锡0.05%、BYK-306 0.45%。其中自制预聚物由以下重量百分比含量的原料组成：PPG600（聚四氢呋喃醚二醇） 15%、1，4-丁二醇5%、二甲苯烷二异氰酸酯37.95%、辛酸亚锡 0.05%、乙二醇乙醚醋酸酯20%、乙酸丁酯22%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加PPG600（聚四氢呋喃醚二醇）和1，4-丁二醇，然后在反应釜中加入乙二醇乙醚醋酸酯后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至45℃下保温继续搅拌1h，加入辛酸亚锡，在70℃下边搅拌边用滴液漏斗滴加二甲苯烷二异氰酸酯，2h滴加完毕，升温至75℃保温继续反应2h，降温至40℃以下加入乙酸丁酯，升温至70℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-3390混合后加入乙二醇乙醚醋酸酯搅拌均匀，然后加入辛酸亚锡，熟化10分钟后加入BYK-306搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
实施例7
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物52.5%、N-75 16%、乙酸丁酯20、乙酸乙酯10%、二月桂酸二丁基锡0.3%、BYK-358N1.2%。其中自制预聚物由以下重量百分比含量的原料组成：T-5651 （聚碳酸酯二醇）25%、丙三醇3%、已二异氰酸酯27%、二月桂酸二丁基锡 0.01%、乙酸乙酯22%、二甲苯22.99%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加T-5651（聚碳酸酯二醇）和丙三醇，然后在反应釜中加入乙酸乙酯后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至40℃下保温继续搅拌1h，加入二月桂酸二丁基锡，在60℃下边搅拌边用滴液漏斗滴加已二异氰酸酯，2h滴加完毕，升温至80℃保温继续反应2h，降温至40℃以下加入二甲苯，升温至80℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-75混合后加入乙酸丁酯、乙酸乙酯搅拌均匀，然后加入二月桂酸二丁基锡，熟化10分钟后加入BYK-358N搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
实施例8
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物55%、N-3390 10.5%、丁酮33%、二醋酸二丁基锡0.6%、BYK-333 0.9%。其中自制预聚物由以下重量百分比含量的原料组成：300E（聚醚三元醇） 21%、三羟甲基丙烷4%、二环己基甲烷二异氰酸酯34.98%、二醋酸二丁基锡0.02%、乙酸（2-丁氧基乙）酯20%、丁酮20%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加300E（聚醚三元醇）和三羟甲基丙烷，然后在反应釜中加入乙酸（2-丁氧基乙）酯后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至50℃下保温继续搅拌1h，加入二醋酸二丁基锡，在70℃下边搅拌边用滴液漏斗滴加二环己基甲烷二异氰酸酯，2h滴加完毕，升温至70℃保温继续反应2h，降温至40℃以下加入丁酮，升温至70℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-3390混合后加入丁酮搅拌均匀，然后加入二醋酸二丁基锡，熟化10分钟后加入BYK-333搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
实施例9
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物41%、N-75 15.9%、丙酮43%、辛酸亚锡0.04%、BYK-378 0.06%。其中自制预聚物由以下重量百分比含量的原料组成：CAPA3000（聚己内酯三醇）8%、CAPA2085 （聚己内酯二醇）10%、三异丙醇胺3%、二甲苯烷二异氰酸酯37%、辛酸亚锡0.03%、环己酮20%、乙酸乙酯21.97%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加CAPA3000（聚己内酯三醇）、CAPA2085（聚己内酯二醇）和三异丙醇胺，然后在反应釜中加入环己酮后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至48℃下保温继续搅拌1h，加入辛酸亚锡，在65℃下边搅拌边用滴液漏斗滴加二甲苯烷二异氰酸酯，2h滴加完毕，升温至70℃保温继续反应2h，降温至40℃以下加入乙酸乙酯，升温至75℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-75混合后加入丙酮搅拌均匀，然后加入辛酸亚锡，熟化10分钟后加入BYK-378搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
实施例10
一种ITO镀膜表面聚氨酯高附着力耐磨涂层，由以下重量百分比含量的原料组成：自制预聚物48%、N-3390 12%、乙二醇乙醚醋酸酯9%、乙酸丁酯15%、丁酮15%、二月桂酸二丁基锡0.7%、BYK-4510 0.3%。其中自制预聚物由以下重量百分比含量的原料组成：PPG1000（聚四氢呋喃醚二醇） 6%、PPG600（聚四氢呋喃醚二醇） 6%、三羟甲基丙烷2%、甲苯二异氰酸酯39%、二醋酸二丁基锡0.05%、乙酸丁酯22%、丁酮24.95%。
该ITO镀膜表面聚氨酯高附着力耐磨涂层制备时包括以下步骤：
（1）制备自制预聚物：在反应釜中加PPG1000（聚四氢呋喃醚二醇）、PPG600（聚四氢呋喃醚二醇）和三羟甲基丙烷，然后在反应釜中加入乙酸丁酯后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至50℃下保温继续搅拌1h，加入二醋酸二丁基锡，在60℃下边搅拌边用滴液漏斗滴加甲苯二异氰酸酯，2h滴加完毕，升温至70℃保温继续反应2h，降温至40℃以下加入丁酮，升温至80℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和N-3390混合后加入乙二醇乙醚醋酸酯、乙酸丁酯、丁酮搅拌均匀，然后加入二月桂酸二丁基锡，熟化10分钟后加入BYK-4510搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
对以上各实施例制成的涂层进行性能测试，测试结果如表一所示。
表一：各实施例制备的涂层性能

Claims (9)

1.一种ITO镀膜表面聚氨酯高附着力耐磨涂层，其特征在于由以下重量百分比含量的原料组成：自制预聚物40-70%、固化剂5-20%、溶剂A 20-50%、催化剂A 0.01-1%、助剂0.05-2%，所述自制预聚物由以下重量百分比含量的原料组成：聚合物多元醇10-30%、扩链剂2-5%、多异氰酸酯10-40%、催化剂B 0.01-0.05%、溶剂B 40-50%。
2.根据权利要求1所述的一种ITO镀膜表面聚氨酯高附着力耐磨涂层，其特征在于：所述固化剂为N-75、N-3390中的一种。
3.根据权利要求1所述的一种ITO镀膜表面聚氨酯高附着力耐磨涂层，其特征在于：所述溶剂A和溶剂B分别为DBE、乙酸（2-丁氧基乙）酯、二甲苯、环己酮、乙酸乙酯、乙二醇乙醚醋酸酯、乙酸丁酯、丁酮、丙酮中的一种或几种。
4.根据权利要求1所述的一种ITO镀膜表面聚氨酯高附着力耐磨涂层，其特征在于：所述催化剂A和催化剂B分别为二月桂酸二丁基锡、二醋酸二丁基锡、辛酸亚锡中的一种。
5.根据权利要求1所述的一种ITO镀膜表面聚氨酯高附着力耐磨涂层，其特征在于：所述助剂为BYK-306、BYK-358N、BYK-333、BYK-378、BYK-4510中的一种或几种。
6.根据权利要求1所述的一种ITO镀膜表面聚氨酯高附着力耐磨涂层，其特征在于：所述聚合物多元醇为CAPA3050、CAPA3000、CAPA2085、CAPA2000、N-330、300E、PPG1000、PPG600、T-5651中的一种或几种。
7.根据权利要求1所述的一种ITO镀膜表面聚氨酯高附着力耐磨涂层，其特征在于：所述扩链剂为1，4-丁二醇、1，6-己二醇、丙三醇、三羟甲基丙烷、三异丙醇胺的一种或几种。
8.根据权利要求1所述的一种ITO镀膜表面聚氨酯高附着力耐磨涂层，其特征在于：所述多异氰酸酯为甲苯二异氰酸酯、二甲苯烷二异氰酸酯、二环己基甲烷二异氰酸酯、已二异氰酸酯的一种或几种。
9.一种ITO镀膜表面聚氨酯高附着力耐磨涂层的制备方法，其特征在于该方法包括以下步骤：
（1）制备自制预聚物：在反应釜中加入聚合物多元醇和扩链剂，然后在反应釜中加入一部分溶剂B后混合均匀，加热减压回流脱水2h，放出蒸出的水和溶剂的混合物，降温至40-50℃下保温继续搅拌1h，加入催化剂B，在60-70℃下边搅拌边用滴液漏斗滴加多异氰酸酯，2h滴加完毕，升温至70-80℃保温继续反应2h，降温至40℃以下加入剩余部分溶剂，升温至70-80℃保温搅拌反应3h即可得到自制预聚物；
（2）将自制预聚物和固化剂混合后加入溶剂A搅拌均匀，然后加入催化剂A，熟化10分钟后加入助剂搅拌均匀，待气泡完全消失后，进行涂覆，室温固化7d后即可形成涂层。
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CN112430448A (zh) * 2020-11-23 2021-03-02 南通高盟新材料有限公司 一种h级绝缘纸复合材料用粘合剂及其制备方法
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Application publication date: 20190412