CN113773785A - 一种双组份聚氨酯-环氧树脂灌封胶及其制备方法 - Google Patents
一种双组份聚氨酯-环氧树脂灌封胶及其制备方法 Download PDFInfo
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Abstract
本发明涉及灌封胶技术领域,特别涉及一种双组份聚氨酯‑环氧树脂灌封胶及其制备方法,所述灌封胶包括A组分和B组分按重量比1:(2‑3)混合而成;其中,所述A组分包括以下重量份的原料制备而成:聚醚多元醇200‑300份、环氧树脂6‑12份、多异氰酸酯110‑160份和增塑剂80‑100份;所述B组分包括以下重量份的原料制备而成:精制蓖麻油8‑12份、端氨基聚醚6‑18份、消泡剂0.8‑1.2份、填充剂26‑35份、吸泡剂4‑6份和导热填充剂2‑4份;本发明提供的双组份聚氨酯‑环氧树脂灌封胶,先分别合成A组分和B组分,A组分为采用多异氰酸酯两步法加入,引入环氧树脂,接枝改性聚氨酯,合成的‑NCO封端的聚氨酯‑环氧树脂预聚物,使灌封胶兼具环氧树脂力学性能和聚氨酯粘结强度优、可调性大的优点。
Description
技术领域
本发明涉及灌封胶技术领域,特别涉及一种双组份聚氨酯-环氧树脂灌封胶及其制备方法。
背景技术
灌封胶大量用于电子电器领域,主要对电子元器件起密封和保护作用,这就要求其流动性好,固化后具备良好的力学性能、粘接性能、防水性能、阻燃性能及电绝缘性能,同时不能腐蚀电子线路板的元器件。
目前市场上广泛使用的灌封胶有环氧树脂、有机硅和聚氨酯。总体而言,有机硅灌封胶粘接性略差,但黏度可调控,耐老化,耐高温;环氧树脂灌封胶粘接力强,固化物硬度大,力学性能最好;聚氨酯灌封胶对橡胶、金属和塑料均有很好的粘接性能,固化物强度适中,弹性好,耐水。聚氨酯克服了环氧灌封胶的脆性和有机硅灌封胶粘接性差的缺点,且成本略低,但力学性能与环氧树脂相比略差一些。
发明内容
本发明的目的在于克服现有技术中的不足,提供一种双组份聚氨酯-环氧树脂灌封胶,其具有粘结性能优异,力学性能好的优点。
为了实现上述目的,本发明采用以下技术方案予以实现:
一种双组份聚氨酯-环氧树脂灌封胶,包括A组分和B组分按重量比1:(2-3)混合而成;其中,所述A组分包括以下重量份的原料制备而成:聚醚多元醇200-300份、环氧树脂6-12份、多异氰酸酯110-160份和增塑剂80-100份;
所述B组分包括以下重量份的原料制备而成:精制蓖麻油8-12份、端氨基聚醚6-18份、消泡剂0.8-1.2份、填充剂26-35份、吸泡剂4-6份和导热填充剂2-4份。
优选地,所述聚醚多元醇的分子量为2000-5000,官能度为2或3。
优选地,所述环氧树脂选自环氧树脂E44或环氧树脂E51,环氧当量为180-250g/mol。
优选地,所述多异氰酸酯选自TDI、MDI-50、IPDI、PM-200中的至少一种。
优选地,所述增塑剂选自氯化石蜡、氯代棕榈油甲酯,或其组合。
优选地,所述精制蓖麻油的平均分子量为930,官能度为2.7。
优选地,所述端氨基聚醚的分子量为1000-2000,官能度为2。
优选地,所述消泡剂为聚醚改性硅氧烷共聚物;
所述填充剂选自滑石粉、高岭土和碳酸钙中的至少一种;
所述吸泡剂选自氧化钙或氧化镁。
优选地,所述导热填充剂选自氧化铝、氧化锌或氮化铝中的至少一种。
本发明还提供了一种上述双组份聚氨酯-环氧树脂灌封胶的制备方法,包括以下步骤:
(1)A组分的制备
向三口烧瓶中加入聚醚多元醇和环氧树脂,升温至100-110℃脱水,脱水结束后降温至75-80℃,加入部分多异氰酸酯,在氮气保护下于75-80℃保温反应2h,再加入剩余多异氰酸酯,继续于75-80℃保温反应3h,最后加入增塑剂,同时降温至60℃,出料,密封保存,即得A组分;
(2)B组分的制备
向容器中加入精制蓖麻油和端氨基聚醚,高速搅拌均匀,再加入填充剂、导热填充剂、消泡剂和吸泡剂,高速搅拌均匀后,升温至110-120℃,真空脱水2-3h,脱水结束后降温至60℃,密封保存,即得B组分。
与现有技术相比,本发明具有以下技术效果:
(1)本发明提供了一种双组份聚氨酯-环氧树脂灌封胶,先分别合成A组分和B组分,A组分为采用多异氰酸酯两步法加入,引入环氧树脂,接枝改性聚氨酯,合成的-NCO封端的聚氨酯-环氧树脂预聚物,使灌封胶兼具环氧树脂力学性能和聚氨酯粘结强度优、可调性大的优点。
(2)B组分使用精制蓖麻油和端氨基聚醚,含反应性官能团-NH2、-OH,与A组份中的-NCO反应,同时-NH2还可以与环氧树脂中的环氧基团进行固化反应,双重固化和交联,交联度更高,力学性能和粘结强度更加优异。
(3)A组份使用含氯增塑剂,不仅起到阻燃的效果,还可以降低体系粘度和成本,不使用有机溶剂,成本优势大。
(4)B组份使用吸泡剂和导热填充剂,可以达到固化后灌封胶完全没有气泡,还具有导热效果,更适合使用在电子元器件领域。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体实施例,进一步阐明本发明。
实施例1
一种双组份聚氨酯-环氧树脂灌封胶,包括A组分和B组分按重量比1:2混合而成;
其中,A组分包括以下重量份的原料制备而成:聚醚220(分子量2000,官能度为2)200份、聚醚330N(分子量5000,官能度为3)80份、环氧树脂E4412份、TDI 15份、MDI-50110份、氯化石蜡52#80份;
B组分包括以下重量份的原料制备而成:精制蓖麻油10份、端氨基聚醚二胺10006份、消泡剂(聚醚改性硅氧烷共聚物)1份、吸泡剂(轻质氧化镁)5份、填充剂(600目滑石粉)30份、导热填充剂(氧化铝)3份;
本实施例中,所述的双组份聚氨酯-环氧树脂灌封胶的制备方法为:
S1:A组分的制备
向三口烧瓶中加入聚醚多元醇(聚醚220和聚醚330N的混合物)和环氧树脂E44,升温至105℃脱水,脱水结束后降温至80℃,加入15份TDI,在氮气保护下于80℃保温反应2h,再加入110份MDI-50,继续于80℃保温反应3h,最后加入增塑剂(氯化石蜡52#),同时降温至60℃,出料,密封保存,即得A组分;
S2:B组分的制备
向容器中加入精制蓖麻油和端氨基聚醚(端氨基聚醚二胺1000),高速搅拌均匀,再加入填充剂(600目滑石粉)、导热填充剂(氧化铝)、消泡剂(聚醚改性硅氧烷共聚物)和吸泡剂(轻质氧化镁),高速搅拌均匀后,升温至115℃,真空脱水2h,脱水结束后降温至60℃,密封保存,即得B组分;
S3:将上述步骤S1和步骤S2中制备得到的A组分和B组分按重量比1:2混合均匀,即可得到所述的双组份聚氨酯-环氧树脂灌封胶用于使用。
实施例2
一种双组份聚氨酯-环氧树脂灌封胶,包括A组分和B组分按重量比1:2混合而成;
其中,A组分包括以下重量份的原料制备而成:聚醚220(分子量2000,官能度为2)200份、聚醚3050(分子量3000,官能度为3)100份、环氧树脂E448份、TDI 20份、IPDI 130份、氯化石蜡52#100份;
B组分包括以下重量份的原料制备而成:精制蓖麻油12份、端氨基聚醚二胺100010份、消泡剂(聚醚改性硅氧烷共聚物)0.8份、吸泡剂(轻质氧化镁)5份、填充剂(600目重钙粉)26份、导热填充剂(氧化锌)4份;
本实施例中,所述的双组份聚氨酯-环氧树脂灌封胶的制备方法为:
S1:A组分的制备
向三口烧瓶中加入聚醚多元醇(聚醚220和聚醚3050的混合物)和环氧树脂E44,升温至105℃脱水,脱水结束后降温至80℃,加入20份TDI,在氮气保护下于80℃保温反应2h,再加入130份IPDI,继续于80℃保温反应3h,最后加入增塑剂(氯化石蜡52#),同时降温至60℃,出料,密封保存,即得A组分;
S2:B组分的制备
向容器中加入精制蓖麻油和端氨基聚醚(端氨基聚醚二胺1000),高速搅拌均匀,再加入填充剂(600目重钙粉)、导热填充剂(氧化锌)、消泡剂(聚醚改性硅氧烷共聚物)和吸泡剂(轻质氧化镁),高速搅拌均匀后,升温至115℃,真空脱水2h,脱水结束后降温至60℃,密封保存,即得B组分;
S3:将上述步骤S1和步骤S2中制备得到的A组分和B组分按重量比1:2混合均匀,即可得到所述的双组份聚氨酯-环氧树脂灌封胶用于使用。
实施例3
一种双组份聚氨酯-环氧树脂灌封胶,包括A组分和B组分按重量比1:3混合而成;
其中,A组分包括以下重量份的原料制备而成:聚醚3050(分子量3000,官能度为3)200份、环氧树脂E516份、MDI 150份、氯代棕榈油甲酯90份;
B组分包括以下重量份的原料制备而成:精制蓖麻油10份、端氨基聚醚二胺200018份、消泡剂(聚醚改性硅氧烷共聚物)1份、吸泡剂(氧化钙)6份、填充剂(800目高岭土)35份、导热填充剂(氧化锌)3份;
本实施例中,所述的双组份聚氨酯-环氧树脂灌封胶的制备方法为:
S1:A组分的制备
向三口烧瓶中加入聚醚3050和环氧树脂E51,升温至105℃脱水,脱水结束后降温至80℃,加入10份MDI,在氮气保护下于80℃保温反应2h,再加入140份MDI,继续于80℃保温反应3h,最后加入增塑剂(氯代棕榈油甲酯),同时降温至60℃,出料,密封保存,即得A组分;
S2:B组分的制备
向容器中加入精制蓖麻油和端氨基聚醚(端氨基聚醚二胺2000),高速搅拌均匀,再加入填充剂(800目高岭土)、导热填充剂(氧化锌)、消泡剂(聚醚改性硅氧烷共聚物)和吸泡剂(氧化钙),高速搅拌均匀后,升温至115℃,真空脱水2h,脱水结束后降温至60℃,密封保存,即得B组分;
S3:将上述步骤S1和步骤S2中制备得到的A组分和B组分按重量比1:3混合均匀,即可得到所述的双组份聚氨酯-环氧树脂灌封胶用于使用。
实施例4
一种双组份聚氨酯-环氧树脂灌封胶,包括A组分和B组分按重量比1:2混合而成;
其中,A组分包括以下重量份的原料制备而成:聚醚220(分子量2000,官能度为2)300份、环氧树脂E518份、TDI 20份、IPDI 130份、氯化石蜡52#80份;
B组分包括以下重量份的原料制备而成:精制蓖麻油8份、端氨基聚醚二胺100015份、消泡剂(聚醚改性硅氧烷共聚物)1.2份、吸泡剂(轻质氧化镁)4份、填充剂(600目滑石粉)27份、导热填充剂(氧化铝)2份;
本实施例中,所述的双组份聚氨酯-环氧树脂灌封胶的制备方法为:
S1:A组分的制备
向三口烧瓶中加入聚醚220和环氧树脂E51,升温至105℃脱水,脱水结束后降温至80℃,加入20份TDI,在氮气保护下于80℃保温反应2h,再加入130份IPDI,继续于80℃保温反应3h,最后加入增塑剂(氯化石蜡52#),同时降温至60℃,出料,密封保存,即得A组分;
S2:B组分的制备
向容器中加入精制蓖麻油和端氨基聚醚(端氨基聚醚二胺1000),高速搅拌均匀,再加入填充剂(600目滑石粉)、导热填充剂(氧化铝)、消泡剂(聚醚改性硅氧烷共聚物)和吸泡剂(轻质氧化镁),高速搅拌均匀后,升温至115℃,真空脱水2h,脱水结束后降温至60℃,密封保存,即得B组分;
S3:将上述步骤S1和步骤S2中制备得到的A组分和B组分按重量比1:2混合均匀,即可得到所述的双组份聚氨酯-环氧树脂灌封胶用于使用。
取用等量的上述实施例1-4提供的双组份聚氨酯-环氧树脂灌封胶用于同批次、同规格的PCB板的粘接,测定制备得到的灌封胶的使用性能,具体测试项目及结果如表1所示。
表1:
上述测试项目中,粘结强度具体是按GB 2792-1998中的规定进行测试的,剥离力越大则粘接强度越高;
拉伸强度具体是按GB/T 6329-1996中的规定进行测试的,拉伸强度越高,则表示力学性能越好。
邵氏硬度具体是按GBT2411-2008中的规定进行测试的;
导热系数具体是按GB/T 3399-1982中的规定进行测试的,导热系数越大,导热性能越好。
结合表1中的测试数据可以看出,本发明提供的双组份聚氨酯-环氧树脂灌封胶具有优异的力学性能和粘结强度;并且,基于本发明提供的技术方案,由于聚氨酯预聚物本身的粘度很大,增塑剂的粘度相对较小,而且成本较低,将增塑剂加进去之后,相当于起到了稀释的效果,使得本发明提供的灌封胶具有较低的体系粘度;而且,由于增塑剂的加入,也明显的降低了产品的成本;进一步的,在本发明提供的技术方案中,由于没有水分跟NCO反应,与NCO反应的是OH/NH2,没有气体产生,对于搅拌所产生的泡沫,通过吸泡剂吸附反应解决,因此该灌封胶产品密实无泡。
以上显示和描述了本发明的基本原理、主要特征和本发明的特点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明的范围内。本发明要求保护的范围由所附的权利要求书及其等效物界定。
Claims (10)
1.一种双组份聚氨酯-环氧树脂灌封胶,其特征在于,包括A组分和B组分按重量比1:(2-3)混合而成;其中,所述A组分包括以下重量份的原料制备而成:聚醚多元醇200-300份、环氧树脂6-12份、多异氰酸酯110-160份和增塑剂80-100份;
所述B组分包括以下重量份的原料制备而成:精制蓖麻油8-12份、端氨基聚醚6-18份、消泡剂0.8-1.2份、填充剂26-35份、吸泡剂4-6份和导热填充剂2-4份。
2.根据权利要求1所述的双组份聚氨酯-环氧树脂灌封胶,其特征在于,所述聚醚多元醇的分子量为2000-5000,官能度为2或3。
3.根据权利要求1所述的双组份聚氨酯-环氧树脂灌封胶,其特征在于,所述环氧树脂选自环氧树脂E44或环氧树脂E51,环氧当量为180-250g/mol。
4.根据权利要求1所述的双组份聚氨酯-环氧树脂灌封胶,其特征在于,所述多异氰酸酯选自TDI、MDI-50、IPDI、PM-200中的至少一种。
5.根据权利要求1所述的双组份聚氨酯-环氧树脂灌封胶,其特征在于,所述增塑剂选自氯化石蜡、氯代棕榈油甲酯,或其组合。
6.根据权利要求1所述的双组份聚氨酯-环氧树脂灌封胶,其特征在于,所述精制蓖麻油的平均分子量为930,官能度为2.7。
7.根据权利要求1所述的双组份聚氨酯-环氧树脂灌封胶,其特征在于,所述端氨基聚醚的分子量为1000-2000,官能度为2。
8.根据权利要求1所述的双组份聚氨酯-环氧树脂灌封胶,其特征在于,所述消泡剂为聚醚改性硅氧烷共聚物;
所述填充剂选自滑石粉、高岭土和碳酸钙中的至少一种;
所述吸泡剂选自氧化钙或氧化镁。
9.根据权利要求1所述的双组份聚氨酯-环氧树脂灌封胶,其特征在于,所述导热填充剂选自氧化铝、氧化锌或氮化铝中的至少一种。
10.根据权利要求1-9任意一项所述双组份聚氨酯-环氧树脂灌封胶的制备方法,其特征在于,包括以下步骤:
(1)A组分的制备
向三口烧瓶中加入聚醚多元醇和环氧树脂,升温至100-110℃脱水,脱水结束后降温至75-80℃,加入部分多异氰酸酯,在氮气保护下于75-80℃保温反应2h,再加入剩余多异氰酸酯,继续于75-80℃保温反应3h,最后加入增塑剂,同时降温至60℃,出料,密封保存,即得A组分;
(2)B组分的制备
向容器中加入精制蓖麻油和端氨基聚醚,高速搅拌均匀,再加入填充剂、导热填充剂、消泡剂和吸泡剂,高速搅拌均匀后,升温至110-120℃,真空脱水2-3h,脱水结束后降温至60℃,密封保存,即得B组分。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101597470A (zh) * | 2008-06-03 | 2009-12-09 | 北京高盟燕山科技有限公司 | 一种无溶剂型双组分聚氨酯胶粘剂及其制备方法 |
CN104212405A (zh) * | 2013-12-16 | 2014-12-17 | 安徽安大华泰新材料有限公司 | 一种抗雷击聚氨酯灌封胶及制备方法 |
CN105419714A (zh) * | 2014-09-09 | 2016-03-23 | 贵阳时代沃顿科技有限公司 | 一种环氧树脂双组份聚氨酯胶粘剂及其制备方法 |
CN105647458A (zh) * | 2014-11-14 | 2016-06-08 | 天津市耀新科技发展有限公司 | 一种弹性密封胶的制备方法 |
CN110028923A (zh) * | 2019-04-28 | 2019-07-19 | 安徽匠星联创新材料科技有限公司 | 一种无溶剂双组份聚氨酯灌封胶 |
CN111100593A (zh) * | 2019-12-31 | 2020-05-05 | 道生天合材料科技(上海)有限公司 | 一种环氧树脂改性的耐高温聚氨酯灌封胶 |
-
2021
- 2021-10-19 CN CN202111217873.4A patent/CN113773785B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101597470A (zh) * | 2008-06-03 | 2009-12-09 | 北京高盟燕山科技有限公司 | 一种无溶剂型双组分聚氨酯胶粘剂及其制备方法 |
CN104212405A (zh) * | 2013-12-16 | 2014-12-17 | 安徽安大华泰新材料有限公司 | 一种抗雷击聚氨酯灌封胶及制备方法 |
CN105419714A (zh) * | 2014-09-09 | 2016-03-23 | 贵阳时代沃顿科技有限公司 | 一种环氧树脂双组份聚氨酯胶粘剂及其制备方法 |
CN105647458A (zh) * | 2014-11-14 | 2016-06-08 | 天津市耀新科技发展有限公司 | 一种弹性密封胶的制备方法 |
CN110028923A (zh) * | 2019-04-28 | 2019-07-19 | 安徽匠星联创新材料科技有限公司 | 一种无溶剂双组份聚氨酯灌封胶 |
CN111100593A (zh) * | 2019-12-31 | 2020-05-05 | 道生天合材料科技(上海)有限公司 | 一种环氧树脂改性的耐高温聚氨酯灌封胶 |
Non-Patent Citations (2)
Title |
---|
李子东 等: "《胶黏剂助剂》", 30 June 2009, 化学工业出版社 * |
范兆荣等: "环保型聚氨酯胶粘剂的研制", 《中国胶粘剂》 * |
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