CN105482123A - 复合硅橡胶老化修复液的制备方法 - Google Patents

复合硅橡胶老化修复液的制备方法 Download PDF

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CN105482123A
CN105482123A CN201610050918.6A CN201610050918A CN105482123A CN 105482123 A CN105482123 A CN 105482123A CN 201610050918 A CN201610050918 A CN 201610050918A CN 105482123 A CN105482123 A CN 105482123A
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silicone rubber
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宋志强
游传榜
冯同军
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HEBEI SILICON VALLEY CHEMICAL CO Ltd
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    • C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
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    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
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Abstract

本发明涉及一种复合硅橡胶老化修复液的制备方法。将10-20g四甲基四乙氧基环硅氧烷和3-8g氟代丙基甲基环三硅氧烷置于反应器中，在20-50℃下加入0.05-0.1g氢氧化胺，反应3-6h，加入50-75g端羟基硅氧烷齐聚物，温度提升到50-100℃继续反应1-3h；反应液转运到行星搅拌容器搅拌，加入10-20g二甲基苯、8-15g纳米二氧化硅和8-15g纳米氧化铝，溶解分散2-5h；分散液泵送至配料罐，加入2-5g乙烯基三甲氧基硅烷、1-2g钛酸甲乙酯和0.5-1g氨丙基硅氧烷，在40-80℃下反应1-2h完成制备。它渗透性强，能深入到老化硅橡胶细小裂纹的深处，恢复硅橡胶的机械和电气性能。

Description

复合硅橡胶老化修复液的制备方法
技术领域
本发明属于电力器材老化修复领域，特别涉及一种复合硅橡胶老化修复液的制备方法。
背景技术
电力系统为解决高压设备外绝缘的问题大量使用复合硅橡胶产品，在电场、温度、湿度、污秽、紫外线、臭氧、酸雨等多重因素作用下，复合硅橡胶材料极易发生老化，常表现为变色、憎水性下降、粉化、表面蚀损、硬化、脆化、龟裂、起皮、深度裂纹和其它形式的损伤。高压设备的复合硅橡胶老化后，无法满足运行的需要，一旦彻底失效必将产生灾难性后果。为此，老化失效的复合硅橡胶类电气设备只有废弃，浪费严重。
发明内容
为了克服现有技术的缺点，本发明提供一种复合硅橡胶老化修复液的制备方法，它渗透性强，能深入到老化硅橡胶细小裂纹的深处，恢复硅橡胶的机械和电气性能。
本发明解决其技术问题所采取的技术方案是：将10-20g四甲基四乙氧基环硅氧烷和3-8g氟代丙基甲基环三硅氧烷置于反应器中，在20-50℃下加入0.05-0.1g氢氧化胺，反应3-6h，加入50-75g端羟基硅氧烷齐聚物，温度提升到50-100℃继续反应1-3h；反应液转运到行星搅拌容器搅拌，加入10-20g二甲基苯、8-15g纳米二氧化硅和8-15g纳米氧化铝，溶解分散2-5h；分散液泵送至配料罐，加入2-5g乙烯基三甲氧基硅烷、1-2g钛酸甲乙酯和0.5-1g氨丙基硅氧烷，在40-80℃下反应1-2h完成制备。
本发明具有下列优点：1)、低粘度，浸润性好，渗透性强，能深入到老化硅橡胶细小裂纹的深处；2)、与老化硅橡胶的相容性好，适应性强，可用于老化的高温硫化硅橡胶(HTV)、中温硫化液体硅橡胶(LSR)和室温硫化硅橡胶(RTV)的修复；3)、反应活性高，可与老化硅橡胶断裂的分子末端发生化学结合，形成牢固的修复强度，恢复硅橡胶由于电场、环境和外力作用下衰退的机械和电气性能。
具体实施方式
第一实施例包括下列步骤：将10-20g四甲基四乙氧基环硅氧烷和3-8g氟代丙基甲基环三硅氧烷置于反应器中，在20-50℃下加入0.05-0.1g氢氧化胺，反应3-6h，加入50-75g端羟基硅氧烷齐聚物，温度提升到50-100℃继续反应1-3h；反应液转运到行星搅拌容器搅拌，加入10-20g二甲基苯、8-15g纳米二氧化硅和8-15g纳米氧化铝，溶解分散2-5h；分散液泵送至配料罐，加入2-5g乙烯基三甲氧基硅烷、1-2g钛酸甲乙酯和0.5-1g氨丙基硅氧烷，在40-80℃下反应1-2h完成制备。
第二实施例包括下列步骤：将3-8g氟代丙基甲基环三硅氧烷和8-15g八甲基环硅氧烷加入反应器中，在40-70℃下，加入0.05-0.1g四甲基氯化胺为催化剂反应3-6h，加入50-75g端羟基硅氧烷齐聚物，在70℃-120℃下调聚2-5h；反应液进入混合器，再加入5-10g甲基环己烷、8-15g纳米二氧化硅、5-10g纳米氧化铝、5-10g纳米氧化锌混合，送入砂磨机碾磨至均匀；后倒入配料槽中，再加入2-5g甲基乙酰氧基硅烷、1-2g二月桂酸二丁基锡和0.5-1g环氧基硅氧烷，在50-100℃下反应1-2h完成制备。
该修复液属于有机硅系列，是一种低粘度活性聚氟硅氧烷。该修复液的主要物性参数如下：流动性良好液体，相对密度0.935-1.038/20℃，粘度25-61mPa.s/20℃，以SiO2计含量28.8％-39.5％，PH值6.8-7.5，粘接剥离强度≥18.0N/mm。

Claims (2)

1.一种复合硅橡胶老化修复液的制备方法，其特征在于包括下列步骤：将10-20g四甲基四乙氧基环硅氧烷和3-8g氟代丙基甲基环三硅氧烷置于反应器中，在20-50℃下加入0.05-0.1g氢氧化胺，反应3-6h，加入50-75g端羟基硅氧烷齐聚物，温度提升到50-100℃继续反应1-3h；反应液转运到行星搅拌容器搅拌，加入10-20g二甲基苯、8-15g纳米二氧化硅和8-15g纳米氧化铝，溶解分散2-5h；分散液泵送至配料罐，加入2-5g乙烯基三甲氧基硅烷、1-2g钛酸甲乙酯和0.5-1g氨丙基硅氧烷，在40-80℃下反应1-2h完成制备。
2.一种复合硅橡胶老化修复液的制备方法，其特征在于包括下列步骤：将3-8g氟代丙基甲基环三硅氧烷和8-15g八甲基环硅氧烷加入反应器中，在40-70℃下，加入0.05-0.1g四甲基氯化胺为催化剂反应3-6h，加入50-75g端羟基硅氧烷齐聚物，在70℃-120℃下调聚2-5h；反应液进入混合器，再加入5-10g甲基环己烷、8-15g纳米二氧化硅、5-10g纳米氧化铝、5-10g纳米氧化锌混合，送入砂磨机碾磨至均匀；后倒入配料槽中，再加入2-5g甲基乙酰氧基硅烷、1-2g二月桂酸二丁基锡和0.5-1g环氧基硅氧烷，在50-100℃下反应1-2h完成制备。
CN201610050918.6A 2016-01-26 2016-01-26 复合硅橡胶老化修复液的制备方法 Pending CN105482123A (zh)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545068A (zh) * 2013-09-26 2014-01-29 国家电网公司 一种老化的合成绝缘子进行表面修复翻新的方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545068A (zh) * 2013-09-26 2014-01-29 国家电网公司 一种老化的合成绝缘子进行表面修复翻新的方法

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Title
欧庆然: "硅橡胶复合套管伞裙修复技术", 《电力安全技术》 *
王红卫等: "高压互感器液体硅橡胶绝缘护套修复工艺及性能研究", 《环境技术》 *
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Application publication date: 20160413