CN112457471B - 一种高透光高耐热环氧树脂及其制备方法 - Google Patents

一种高透光高耐热环氧树脂及其制备方法 Download PDF

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CN112457471B
CN112457471B CN202011362958.7A CN202011362958A CN112457471B CN 112457471 B CN112457471 B CN 112457471B CN 202011362958 A CN202011362958 A CN 202011362958A CN 112457471 B CN112457471 B CN 112457471B
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解小玉
贾泉
韩建伟
曹祥明
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Abstract

本发明公开了一种环氧树脂及其制备方法,向反应器中加入三羟甲基丙烷、4‑乙烯基‑1,2‑环氧环己烷、环氧烷烃以及溶剂,再加入路易斯酸,聚合反应后加入过氧乙酸以及氢氧化钠,保温反应,得到环氧树脂,具有高透光高耐热性且成本低。本发明采用新的原料,得到新结构环氧树脂,将本发明树脂和TTA‑21环氧树脂混合配合固化剂固化后测试其应用性能与现有TTA3150&EHPE‑3150相当。

Description

一种高透光高耐热环氧树脂及其制备方法
技术领域
本发明属于有机合成技术,具体涉及一种高透光高耐热固态环氧树脂及其制备方法,且成本低。
背景技术
电子尖端领域的飞速发展,推动了环氧树脂的发展。电子材料是发展微电子工业的基础,作为生产集成电路的主要结构材料—环氧塑封料随着芯片技术的发展也正在飞速发展,并且塑封料技术的发展将大大促进微电子工业的发展。集成电路越发展越显示出电子封装的重要作用,目前使用较多的环氧塑封料的PH值多小于7,铝的腐蚀多为卤素离子所致,于此相适应的环氧塑封料研究开发趋势是高耐热、低总卤等性能特征。现代电子工业从器件的可靠性,成形性出发,对环氧塑封料性能提出了越来越高的要求。聚[(2-环氧乙烷基)-1,2-环己二醇]-2-乙基-2-(羟甲基)-1,3-丙二醇醚(3:1)(TTA3150&EHPE-3150)是由低聚物经环氧化而制备的多官能团环氧树脂,由于末端含环氧基团,与聚醚多元醇缩水甘油醚型环氧树脂有近似的反应性,与酸酐、胺类和阳离子型固化剂等各种固化剂都可以有效固化,其固化物具有良好的绝缘性、耐热性、耐候性,主要应用于LED封装胶、电子元器件灌封、纤维增强复合材料、涂料、大型电力模具、光学胶黏剂及光固化产品、稳定剂、覆铜板等。但是现有TTA3150&EHPE-3150制备成本高。
发明内容:
本发明旨在合成一种应用性能和TTA-3150(EHPE-3150)性能类似的新树脂。本发明采用如下技术方案:
环氧树脂,具有如下化学结构式:
Figure BDA0002804527750000021
其中,R1为环氧烷烃开环氧环后的结构。
本发明的环氧树脂为固态,固态环氧树脂的软化点为50℃~70℃;环氧当量为400~500。
本发明中,环氧烷烃为环氧环己烷、环氧环戊烷等。
本发明所述环氧树脂的制备方法,包括以下步骤:向反应器中加入三羟甲基丙烷、4-乙烯基-1,2-环氧环己烷、环氧烷烃以及溶剂,再加入路易斯酸,聚合反应后加入溶剂、氧化剂、氢氧化钠,保温反应,得到环氧树脂。
本发明中,溶剂为酯类溶剂、氯代烷类溶剂、芳香烃类溶剂,比如乙酸乙酯、乙酸丁酯、甲酸乙酯、碳酸酯、二氯甲烷、二氯乙烷、苯、甲苯、二甲苯;路易斯酸为三氟化硼乙醚或者四氯化锡;氧化剂为20wt%过氧乙酸。
本发明中,保温反应结束后,有机相经碱洗、水洗和脱溶,得到无色透明环氧树脂。
本发明中,三羟甲基丙烷、4-乙烯基-1,2-环氧环己烷、环氧烷烃的重量比例为1∶(4.5~4.8)∶(7.3~7.5),优选为1∶4.65∶7.36;路易斯酸的用量为三羟甲基丙烷重量的11%~45%;氧化剂用量为三羟甲基丙烷重量的16.8倍,氢氧化钠用量为三羟甲基丙烷0.75倍。本发明中,加入路易斯酸时,保持反应温度为-10℃~10℃;加入氧化剂时,保持反应温度不超过30℃。
上述反应可表示如下:
Figure BDA0002804527750000031
本发明采用新的原料,得到新结构环氧树脂,性能与现有TTA3150&EHPE-3150相当,但是成本较现有TTA3150&EHPE-3150环氧树脂下降显著。
附图说明
图1为实施例一产物环氧树脂的凝胶色谱图;
图2为基于图1计算的分子量分布图。
具体实施方式
本发明涉及的原料都是现有产品,具体操作方法以及测试方法都是常规技术。本发明的创造性在于给出新的原料组成制备新结构固体环氧树脂,且本发明产品总卤含量≤5000ppm。
测试标准:
色度:GB/T 605-2006
软化点:GB/T 4507-2014
环氧当量:GB/T 4612-2008
实施例一
Figure BDA0002804527750000041
(1)向100L反应釜中加入39kg二氯乙烷,1kg三羟甲基丙烷,4.65kg 4-乙烯基-1,2-环氧环己烷和7.36kg环氧环己烷;
(2)将0.13kg四氯化锡滴加入反应釜,控制滴加过程温度为-5℃~0℃,滴加3小时,滴加完成后保温反应2小时;
(3)保温完成后,将1.68kg 32wt%液碱滴加入反应釜,控制滴加过程温度为0℃~10℃;滴加完成后常规分相分出有机相A;
(4)将有机相A抽回100L反应釜,于15℃下加入氢氧化钠0.75kg;然后滴加16.8kg20wt%过氧乙酸水溶液,控制滴加过程温度为15℃~25℃,滴加6小时,滴加完成后保温16小时;
(5)保温结束后常规分相分出有机相B,向其中加入4.5kg 30wt%液碱调节Ph=12,再常规搅拌两小时,分出有机相,该有机相再用12kg水洗两次,分出下层有机相,经常规脱溶得到目标产物。
以上步骤依次进行,反应釜中设有常规搅拌;产物为一种无色透明固体,命名为TTA-3150F,Hazen色度10,软化点65℃,环氧当量420,其GPC表征如图1和图2。
实施例二
将实施例一中的环氧环己烷替换为等量的7.36kg环氧环戊烷,其余不变,得到的产物为一种无色透明固体,Hazen色度10,软化点61℃,环氧当量450,命名为TTA-3150E。
测试性能通过将现有TTA-3150、本发明实施例一和实施例二产物分别与TTA-21按重量比1∶1混合制成TTA-3150CE、TTA-3150FCE和TTA3150ECE后进行固化检测。
将环氧树脂与固化剂、固化促进剂混合后热固化,得到环氧固化物;其中环氧树脂为TTA-3150F、TTA-3150E、TTA-3150中的一种与TTA-21的混合物,固化剂为酸酐固化剂,固化促进剂为AO-4,热固化条件为80℃加热1小时,再120℃加热4小时。具体为:
将TTA-3150F、TTA-3150E和TTA-3150各取粉末50g,分别与50g TTA-21(泰特尔新材料)混合,80℃融化,再加入90g MHHPA、2.85g环氧促进剂AO-4,混合后注入模具中,放入烘箱80℃加热1小时,120℃加热4小时,得到无色透明固体,测试其性能如下表。
Figure BDA0002804527750000051
说明:现有TTA-3150(同EHPE-3150)制造成本为600元/kg,本发明TTA-3150F制造成本为450元/kg、TTA-3150E制造成本为420元/kg。
对比例一
在实施例一的基础上,改为在20~30℃滴加四氯化锡,其余不变,得到环氧树脂,进行同样的固化、测试,拉伸强度为33MPa、弯曲强度为81MPa,与TTA3150相差大,无法替换。
对比例二
在实施例一的基础上,将环氧环己烷替换为589kg环氧丙烷,其余不变,得到环氧树脂,进行同样的固化、测试,拉伸强度为31MPa、弯曲强度为85MPa,与TTA3150相差大,无法替换。

Claims (3)

1.一种环氧树脂的制备方法,其特征在于,包括以下步骤:向反应器中加入三羟甲基丙烷、4-乙烯基-1,2-环氧环己烷、环氧烷烃以及溶剂,再在-10℃~10℃下加入路易斯酸,聚合反应后加入氧化剂、氢氧化钠,保温反应,得到环氧树脂;所述环氧树脂的环氧当量为400~500;所述环氧烷烃为环氧环己烷或者环氧环戊烷;所述溶剂为酯类溶剂、氯代烷类溶剂或者芳香烃类溶剂;路易斯酸为三氟化硼乙醚或者四氯化锡;氧化剂为20wt%过氧乙酸;所述三羟甲基丙烷、4-乙烯基-1,2-环氧环己烷、环氧烷烃的重量比例为1∶(4.5~4.8)∶(7.3~7.5);路易斯酸的用量为三羟甲基丙烷重量的11%~45%;氧化剂的用量为三羟甲基丙烷重量的16~18倍,氢氧化钠的用量为三羟甲基丙烷重量的0.75倍;加入氧化剂时,保持反应温度不超过30℃。
2.根据权利要求1所述环氧树脂的制备方法,其特征在于,保温反应结束后,有机相经碱洗、水洗和脱溶,得到环氧树脂。
3.根据权利要求1所述环氧树脂的制备方法制备的环氧树脂。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014156591A (ja) * 2013-01-15 2014-08-28 Daicel Corp 熱硬化性樹脂組成物及びその硬化物、光半導体素子搭載用基板、並びに光半導体装置
WO2017096187A1 (en) * 2015-12-04 2017-06-08 Kansas State University Research Foundation Biobased epoxy monomers, compositions, and uses thereof
CN108003328A (zh) * 2017-11-11 2018-05-08 江苏泰特尔新材料科技有限公司 一种耐热型脂环族环氧树脂固化物及其制备方法
CN109096227A (zh) * 2018-08-02 2018-12-28 江苏泰特尔新材料科技有限公司 一种己内酯改性3,4-环氧环己基甲基-3’,4’-环氧环己基甲酸酯及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014156591A (ja) * 2013-01-15 2014-08-28 Daicel Corp 熱硬化性樹脂組成物及びその硬化物、光半導体素子搭載用基板、並びに光半導体装置
WO2017096187A1 (en) * 2015-12-04 2017-06-08 Kansas State University Research Foundation Biobased epoxy monomers, compositions, and uses thereof
CN108003328A (zh) * 2017-11-11 2018-05-08 江苏泰特尔新材料科技有限公司 一种耐热型脂环族环氧树脂固化物及其制备方法
CN109096227A (zh) * 2018-08-02 2018-12-28 江苏泰特尔新材料科技有限公司 一种己内酯改性3,4-环氧环己基甲基-3’,4’-环氧环己基甲酸酯及其制备方法

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