CN106010392B - 一种长效高湿防霉硅酮密封胶 - Google Patents
一种长效高湿防霉硅酮密封胶 Download PDFInfo
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Abstract
本发明涉及一种密封材料，具体涉及一种长效高湿防霉硅酮密封胶。它由以下原料：α‑氢‑ω‑羟基‑聚二甲基硅氧烷、6‑(beta‑D‑吡喃葡糖氧基)‑7‑羟基‑2H‑1‑苯并呋喃‑2‑酮、右旋‑反式‑2,2‑二甲基‑3‑(2‑甲基‑1‑丙烯基)环丙烷羧酸‑3,4,5,6‑四氢肽酰亚胺基、三甲基(1‑甲基乙烯氧基)硅烷、对甲氧基肉桂酸2‑乙基己酯等制备而成。该长效高湿防霉硅酮密封胶，防霉性能好，储存时间较长，制备方法简单，表干时间相对较短，缩短了工作时间，提高了工作效率，并且没有黄变发生，适于在防霉型硅酮密封胶领域中推广应用。
Description
技术领域
本发明涉及一种密封材料，具体涉及一种长效高湿防霉硅酮密封胶。
背景技术
单组分室温硫化硅橡胶，俗称硅酮密封胶，是以聚二甲基硅氧烷为主要原料，辅以交联剂、填料、增塑剂、偶联剂、催化剂在真空状态下混合而成的膏状物，在室温下通过与空气中的水分发生缩合反应固化形成弹性硅橡胶。由于其拉伸强度大、粘结力强，又具有优良的电性能和化学惰性，同时还具有耐候性、耐火焰、耐湿、透气、抗振性和适应冷热变化等性能，而且适用粘结范围广，使其应用价值非常大，而被广泛应用于门窗、幕墙、玻璃、大理石、铝材等绝大部分建材。从20世纪90年代开始，硅酮密封胶开始在中国的玻璃装饰行业大量使用，为降低生产成本，国内外公司致力于寻找廉价的原材料。
随着我国城镇化的迅猛发展，有机硅密封材料因其性能的优越，在建筑行业的应用越来越广泛。单组份室温硫化硅橡胶，又称硅酮密封胶，由于其具有优良的耐候性、耐老化性、防水和防潮性能，在各种建筑工程和室内装修应用十分广泛。但硅酮密封胶也存在一定的缺点，即胶料完全固化后长期处于高湿热中，表面容易滋生霉菌。导致表面产生黑色斑点，影响外观和脚料本身的密封性能。因此普通的硅酮密封胶在厨房、卫生间的使用也就受到了相应的限制，防霉型硅酮密封胶的开发也成了市场需求的必然。
现在市面上的防霉硅酮密封胶，品种繁多，质量参差不齐，固化后容易黄变，防霉效果差，不能满足人们对防霉型硅酮密封胶的需求。
发明内容
本发明的目的在于解决上述已有技术存在的防霉效果差的不足，提供一种防霉效果好的长效高湿防霉硅酮密封胶。
一种长效高湿防霉硅酮密封胶，特殊之处在于包括以下重量份配比的原料：α-氢-ω-羟基-聚二甲基硅氧烷42-48份，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮3-9份，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基17-25份，三甲基(1-甲基乙烯氧基)硅烷10-16份，对甲氧基肉桂酸2-乙基己酯21-27份，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇32-36份，二乙氧基二甲基硅烷28-34份，11a-羟基-16,17a-环氧孕酮2-6份，乙氧基化三羟甲基丙烷三丙烯酸酯11-15份。
优选地，包括以下重量份配比的原料制备的长效高湿防霉硅酮密封胶具有更好的效果：α-氢-ω-羟基-聚二甲基硅氧烷45份，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮3份，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基25份，三甲基(1-甲基乙烯氧基)硅烷13份，对甲氧基肉桂酸2-乙基己酯21份，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇36份，二乙氧基二甲基硅烷31份，11a-羟基-16,17a-环氧孕酮2份，乙氧基化三羟甲基丙烷三丙烯酸酯15份。
进一步，为了获得效果更好的长效高湿防霉硅酮密封胶，所述长效高湿防霉硅酮密封胶还包括以下重量份配比的原料：二苯基二甲氧基硅烷5-9份，2-氯乙氧基乙醇13-17份，(2S)-2-[[(4S)-4-氨基-5-羟基-5-氧代戊酰]氨基]-4-甲基戊酸9-13份。
优选地，长效高湿防霉硅酮密封胶，其原料重量份配比为：二苯基二甲氧基硅烷7份，2-氯乙氧基乙醇13份，(2S)-2-[[(4S)-4-氨基-5-羟基-5-氧代戊酰]氨基]-4-甲基戊酸13份。
本发明的制备方法：将α-氢-ω-羟基-聚二甲基硅氧烷、6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮、右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基、三甲基(1-甲基乙烯氧基)硅烷加入行星搅拌机内，抽真空，真空度0.09MPa，转速35r/min，搅拌60分钟后，加入对甲氧基肉桂酸2-乙基己酯、2-[2-(2-乙氧基乙氧基)乙氧基]乙醇、二乙氧基二甲基硅烷，加热到100℃抽真空，真空度0.09MPa，搅拌60分钟，再加入11a-羟基-16,17a-环氧孕酮、乙氧基化三羟甲基丙烷三丙烯酸酯，在真空度0.09MPa、转速35r/min下进行化学反应90分钟后，制得所需的长效高湿防霉硅酮密封胶。
该长效高湿防霉硅酮密封胶，防霉性能好，储存时间较长，制备方法简单，表干时间相对较短，缩短了工作时间，提高了工作效率，并且没有黄变发生，适于在防霉型硅酮密封胶领域中推广应用。
具体实施方式
以下给出本发明的具体实施方式，用来对本发明进行进一步说明。本发明中，如无特别说明，各原料均以有效物含量为100%计。
以下实施例中，原料介绍：
α-氢-ω-羟基-聚二甲基硅氧烷，CAS登录号为：31692-79-2；
6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮，CAS登录号为：531-75-9；
右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基，CAS登录号为：1166-46-7；
三甲基(1-甲基乙烯氧基)硅烷，CAS登录号为：1833-53-0；
对甲氧基肉桂酸2-乙基己酯，CAS登录号为：5466-77-3；
2-[2-(2-乙氧基乙氧基)乙氧基]乙醇，CAS登录号为：112-50-5；
二乙氧基二甲基硅烷，CAS登录号为：78-62-6；
11a-羟基-16,17a-环氧孕酮，CAS登录号为：19427-36-2；
乙氧基化三羟甲基丙烷三丙烯酸酯，CAS登录号为：28961-43-5；
二苯基二甲氧基硅烷，CAS登录号为：6843-66-9；
2-氯乙氧基乙醇，CAS登录号为：628-89-7；
(2S)-2-[[(4S)-4-氨基-5-羟基-5-氧代戊酰]氨基]-4-甲基戊酸，CAS登录号为：2566-39-4。
实施例1
称量以下重量份配比的原料：α-氢-ω-羟基-聚二甲基硅氧烷42kg，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮9kg，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基21kg，三甲基(1-甲基乙烯氧基)硅烷10kg，对甲氧基肉桂酸2-乙基己酯27kg，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇34kg，二乙氧基二甲基硅烷28kg，11a-羟基-16,17a-环氧孕酮6kg，乙氧基化三羟甲基丙烷三丙烯酸酯13kg。
本实施例长效高湿防霉硅酮密封胶的制备方法：将α-氢-ω-羟基-聚二甲基硅氧烷、6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮、右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基、三甲基(1-甲基乙烯氧基)硅烷加入行星搅拌机内，抽真空，真空度0.09MPa，转速35r/min，搅拌60分钟后，加入对甲氧基肉桂酸2-乙基己酯、2-[2-(2-乙氧基乙氧基)乙氧基]乙醇、二乙氧基二甲基硅烷，加热到100℃抽真空，真空度0.09MPa，搅拌60分钟，再加入11a-羟基-16,17a-环氧孕酮、乙氧基化三羟甲基丙烷三丙烯酸酯，在真空度0.09MPa、转速35r/min下进行化学反应90分钟后，制得所需的长效高湿防霉硅酮密封胶。
实施例2
称量以下重量份配比的原料：α-氢-ω-羟基-聚二甲基硅氧烷45kg，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮3kg，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基25kg，三甲基(1-甲基乙烯氧基)硅烷13kg，对甲氧基肉桂酸2-乙基己酯21kg，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇36kg，二乙氧基二甲基硅烷31kg，11a-羟基-16,17a-环氧孕酮2kg，乙氧基化三羟甲基丙烷三丙烯酸酯15kg。
本实施例长效高湿防霉硅酮密封胶的制备方法同实施例1。
实施例3
称量以下重量份配比的原料：α-氢-ω-羟基-聚二甲基硅氧烷48kg，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮6kg，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基17kg，三甲基(1-甲基乙烯氧基)硅烷16kg，对甲氧基肉桂酸2-乙基己酯24kg，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇32kg，二乙氧基二甲基硅烷34kg，11a-羟基-16,17a-环氧孕酮4kg，乙氧基化三羟甲基丙烷三丙烯酸酯11kg。
本实施例长效高湿防霉硅酮密封胶的制备方法同实施例1。
实施例4
称量以下重量份配比的原料：α-氢-ω-羟基-聚二甲基硅氧烷45kg，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮3kg，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基25kg，三甲基(1-甲基乙烯氧基)硅烷13kg，对甲氧基肉桂酸2-乙基己酯21kg，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇36kg，二乙氧基二甲基硅烷31kg，11a-羟基-16,17a-环氧孕酮2kg，乙氧基化三羟甲基丙烷三丙烯酸酯15kg，二苯基二甲氧基硅烷5kg，2-氯乙氧基乙醇17kg，(2S)-2-[[(4S)-4-氨基-5-羟基-5-氧代戊酰]氨基]-4-甲基戊酸11kg。
本实施例长效高湿防霉硅酮密封胶的制备方法：将α-氢-ω-羟基-聚二甲基硅氧烷、6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮、右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基、三甲基(1-甲基乙烯氧基)硅烷加入行星搅拌机内，抽真空，真空度0.09MPa，转速35r/min，搅拌60分钟后，加入对甲氧基肉桂酸2-乙基己酯、2-[2-(2-乙氧基乙氧基)乙氧基]乙醇、二乙氧基二甲基硅烷，加热到100℃抽真空，真空度0.09MPa，搅拌60分钟，再加入11a-羟基-16,17a-环氧孕酮、乙氧基化三羟甲基丙烷三丙烯酸酯、二苯基二甲氧基硅烷、2-氯乙氧基乙醇、(2S)-2-[[(4S)-4-氨基-5-羟基-5-氧代戊酰]氨基]-4-甲基戊酸，在真空度0.09MPa、转速35r/min下进行化学反应90分钟后，制得所需的长效高湿防霉硅酮密封胶。
实施例5
称量以下重量份配比的原料：α-氢-ω-羟基-聚二甲基硅氧烷45kg，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮3kg，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基25kg，三甲基(1-甲基乙烯氧基)硅烷13kg，对甲氧基肉桂酸2-乙基己酯21kg，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇36kg，二乙氧基二甲基硅烷31kg，11a-羟基-16,17a-环氧孕酮2kg，乙氧基化三羟甲基丙烷三丙烯酸酯15kg，二苯基二甲氧基硅烷7kg，2-氯乙氧基乙醇13kg，(2S)-2-[[(4S)-4-氨基-5-羟基-5-氧代戊酰]氨基]-4-甲基戊酸13kg。
本实施例长效高湿防霉硅酮密封胶的制备方法同实施例4。
实施例6
称量以下重量份配比的原料：α-氢-ω-羟基-聚二甲基硅氧烷45kg，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮3kg，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基25kg，三甲基(1-甲基乙烯氧基)硅烷13kg，对甲氧基肉桂酸2-乙基己酯21kg，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇36kg，二乙氧基二甲基硅烷31kg，11a-羟基-16,17a-环氧孕酮2kg，乙氧基化三羟甲基丙烷三丙烯酸酯15kg，二苯基二甲氧基硅烷9kg，2-氯乙氧基乙醇15kg，(2S)-2-[[(4S)-4-氨基-5-羟基-5-氧代戊酰]氨基]-4-甲基戊酸9kg。
本实施例长效高湿防霉硅酮密封胶的制备方法同实施例4。
产品性能测试结果
下面就该长效高湿防霉硅酮密封胶做产品性能测试，详细情况见表1。
表1：产品性能测试结果
| 测试项目 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 | 实施例6 |
| 防霉等级 | 0 | 0 | 0 | 0 | 0 | 0 |
| 表干时间（min） | 17 | 13 | 15 | 11 | 8 | 10 |
| 24h固化深度（mm） | 8.2 | 8.7 | 8.5 | 8.9 | 9.4 | 9.2 |
| 黄变情况 | 无黄变 | 无黄变 | 无黄变 | 无黄变 | 无黄变 | 无黄变 |
| 拉伸强度（MPa） | 1.36 | 1.54 | 1.42 | 1.64 | 1.82 | 1.76 |
| 断裂伸长率(%) | 540 | 560 | 550 | 570 | 590 | 580 |
从上表中可以看出，该长效高湿防霉硅酮密封胶的防霉等级都达到最高标准0级，表干时间相对较短，固化深度较深，无黄变情况，拉伸强度较强，有较高的断裂伸长率。其中，实施例5的长效高湿防霉硅酮密封胶性能最优异，防霉等级达到了0级，表干时间是8min，24h固化深度是9.4mm，无黄变情况，拉伸强度是1.82MPa，断裂伸长率是590。
Claims (3)
1.一种长效高湿防霉硅酮密封胶，其特征在于包括以下重量份配比的原料：α-氢-ω-羟基-聚二甲基硅氧烷42-48份，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮3-9份，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基17-25份，三甲基(1-甲基乙烯氧基)硅烷10-16份，对甲氧基肉桂酸2-乙基己酯21-27份，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇32-36份，二乙氧基二甲基硅烷28-34份，11a-羟基-16,17a-环氧孕酮2-6份，乙氧基化三羟甲基丙烷三丙烯酸酯11-15份；
还包括以下重量份配比的原料：二苯基二甲氧基硅烷5-9份，2-氯乙氧基乙醇13-17份，(2S)-2-[[(4S)-4-氨基-5-羟基-5-氧代戊酰]氨基]-4-甲基戊酸9-13份。
2.如权利要求1所述长效高湿防霉硅酮密封胶，其特征在于包括下列重量份配比的原料：α-氢-ω-羟基-聚二甲基硅氧烷45份，6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮3份，右旋-反式-2,2-二甲基-3-(2-甲基-1-丙烯基)环丙烷羧酸-3,4,5,6-四氢肽酰亚胺基25份，三甲基(1-甲基乙烯氧基)硅烷13份，对甲氧基肉桂酸2-乙基己酯21份，2-[2-(2-乙氧基乙氧基)乙氧基]乙醇36份，二乙氧基二甲基硅烷31份，11a-羟基-16,17a-环氧孕酮2份，乙氧基化三羟甲基丙烷三丙烯酸酯15份。
3.如权利要求2所述长效高湿防霉硅酮密封胶，其特征在于包括下列重量份配比的原料：二苯基二甲氧基硅烷7份，2-氯乙氧基乙醇13份，(2S)-2-[[(4S)-4-氨基-5-羟基-5-氧代戊酰]氨基]-4-甲基戊酸13份。
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