CN1332658A - 封端的硅氧烷膜及其制造方法 - Google Patents
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Abstract
通过化学键合将硅氧烷膜附着到表面上。硅酮膜由硅氧烷基团链组成,每个链都以端分子封端,端分子可以是酯类、醚类或卤素。使端分子与水反应,生成OH基团。然后使表面与封端剂接触,封端剂与OH基团反应,生成新的端基团,新的端基团能改善膜的性质。
Description
发明领域
本发明涉及制造硅氧烷膜的领域。
更具体而言,本发明涉及一种制造覆盖表面的硅氧烷膜的方法,该表面包含OH或氮氢键。
在另一个更具体的方面,本发明涉及一种制造覆盖玻璃和其它表面的防水硅氧烷膜的改进方法。
对现有技术的说明
目前有各种方法制造容易清洁的、防水的玻璃制品,其中包括浴室门、风挡、饭店的入口玻璃门和玻璃隔板。在Hirayama等人的美国专利5,415,927和Valimont等人的美国专利4,263,350中,公开了二种所述的方法。
在目前采用的另一种方法中,采用由硅氧烷分子链组成的膜覆盖玻璃,每个链的一端都与玻璃表面化学键合。每个链都包含几十至几百个二甲基硅氧烷(DMS)单元,其自由端由附着到硅上的羟基(OH)或氯封端,其迅速与空气中的水蒸气反应,生成OH基团。这种现有的膜,正在许多玻璃制品以及其它含二氧化硅的制品如花岗岩、瓷器、陶器和石制品上使用,对其中的大部分而言,这种现有的膜是令人满意的。然而,由于存在容易吸水的OH端基,膜的防水性能只能达到一定程度。
因此,本发明的一个目的,是提高玻璃上硅氧烷膜的防水性能,对化学活性物质提供保护膜。
本发明的另一个目的,是制造一族用于处理各种制品例如前面提到的包含二氧化硅的制品以及包含纸、棉花、尼龙、皮革和木材在内的有机物质的硅氧烷膜,以便提高这些制品的表面性能。
发明概述
简而言之,为了达到本发明所要求的目的,按照本发明优选的实施方案,通过化学键合,将硅氧烷膜附着到表面上。该硅氧烷膜由硅氧烷基团链组成,每个链都以端分子封端,端分子可以是酯类、醚类或卤素。端分子能与周围空气中的水反应,生成OH基团。然后使表面与封端剂接触,封端剂与OH基团反应,生成能改善膜性能的新端基。
对于防水应用,R由非极性基团组成,R1由惰性基团组成。对于非防水应用,R由极性基团组成。在其它应用中,R1可由化学活性基团组成,并能使表面用作固态的离子交换剂,或用作化学结合的酶、螯合剂、染料、化学指示剂或其它物质的附着点。
附图简述
本领域的技术人员,根据下面结合附图对本发明优选实施方案的详细说明很容易看出本发明上述的、其它的和更具体的目的和优点,在附图中:
图1是采用现有技术的防水膜覆盖的表面的示意图。
图2是采用使用本发明的方法制造的防水膜覆盖的表面的示意图。
发明详述
参看附图,首先见图1,图1示出采用现有的技术方法,用防水膜处理的表面G。在方法最广泛的应用中,表面G是玻璃,然而这种方法实际上可以用于处理任何包含OH或氮氢键的表面,例如包括花岗岩、瓷器、陶器和石制品在内的包含二氧化硅的表面,以及包括棉花、纸、尼龙、皮革等在内的有机物质。该膜包含二甲基硅氧烷(DMS)基团的链。每个链的一端都化学键合到氧(O)分子上,氧分子又化学键合到表面G上。每个链的相反端都包括附着到硅氧烷上的羟基(OH)或氯,其迅速地与周围空气中的水蒸气反应生成(OH)基团。
制造图1的膜的方法如下。首先将G的表面润湿。可用下面所示的简化形式表示潮湿的表面:然而,在表面上的H-O-H分子数实际上比表面上的O-H基团数大得多(比例约100∶1)。
其次,采用便携式蒸汽机或采用擦拭方法、或浸渍、或喷雾方法,用二甲基二氯硅烷处理表面,便携式蒸汽机适合固定地点操作体积大的房间。在需要时,采用环己胺作为底层,以确保发生化学反应的足够水分。在施加二甲基二氯硅烷之后,二甲基二氯硅烷的分子接近表面上的O-H基团,如下所示:
(b)然后,Si-Cl键与吸收在如下表面G上的水反应:
在本发明改进的方法中,随后采用三甲基氯硅烷处理用上述膜覆盖的表面,三甲基氯硅烷与DMS链端的OH基团反应,生成三甲基氯硅氧烷(TMS)。最终产物是具有以下通式的膜:
式中R为包括烃和卤代烃在内的极性或非极性基团,X选自酯类、醚类和卤素。然后在与上述步骤(b)相似的过程中,硅烷基团与OH或氮氢键和表面G上的水反应,将膜与表面G化学键合。进行一系列与上述步骤(b)-(f)中所示的相似的反应,结果生成具有以下通式的聚合物:式中n为约≥100。然后链端上的X原子与周围空气中的水蒸气反应,结果生成具有以下通式的分子:然后使表面与具有以下通式的封端剂接触:式中R1可以包括惰性和反应性基团的任何组合。封端剂与链端的OH基团反应,最终生成具有以下通式的链:
采用这种方法制造的膜的性质,取决于R和R1的选择,在较小的程度上取决于X。X选择氯基使材料的成本最低,反应时间最短,虽然酯和醚反应性较小,但生成的副产物麻烦较少,并要求不同的加工条件。
对于防水应用,R一般由非极性基团组成,而R1则由化学上的惰性基团组成。如果R由约50%的甲基和50%的苯基组成,则能改善膜的耐磨性能。将DMS链与甲基三氯硅烷连接(这能产生支链和附加的链端),也能改善膜的耐磨性能。甲基三氯硅烷能使链以三维结构连接起来,这会使耐磨性能优于二维结构。
对于非防水应用,R由极性基团组成,如果R1选自化学反应性基团,端分子可能提供酶、螯合剂、离子交换元素、化学指示剂和其它物质的附着点。
对于为了说明本发明而选择的实施方案,本领域的技术人员,能进行各种改进和变动。未超出本发明内容范围的这类变动和改进,都包括在本发明的范围内,本发明的范围,只能根据对下列权利要求的明确说明来确定。
Claims (40)
2.根据权利要求1的方法,其中基片G包括二氧化硅分子。
3.根据权利要求2的方法,其中基片G是由选自玻璃、瓷器、和包含二氧化硅的材料的材料制成的。
4.根据权利要求1的方法,其中基质G包括有机分子。
5.根据权利要求1的方法,其中R是甲基。
6.根据权利要求1的方法,其中R选自苯基、乙基、甲基、丁基、戊基、和较大的烷基。
7.根据权利要求1的方法,其中R由50%的甲基和50%的苯基组成,结果提高了膜的耐磨性能。
8.根据权利要求1的方法,其中R由极性基团组成。
9.根据权利要求1的方法,其中R由非极性基团组成。
10.根据权利要求1的方法,其中R1由化学上的惰性基团组成。
11.根据权利要求1的方法,其中R1由化学上的反应性基团组成。
12.根据权利要求1的方法,其中使表面与硅烷基团接触的步骤包括采用蒸汽机在表面上化学沉积硅氧烷基团。
13.根据权利要求1的方法,其中使表面与硅烷基团接触的步骤包括擦拭方法。
14.根据权利要求1的方法,其中使表面与硅烷基团接触的步骤包括浸渍或喷雾方法。
15.根据权利要求1的方法,其中润湿表面的步骤包括采用环己胺给表面上底层的步骤。
17.根据权利要求16的方法,其中稍微防水的膜包括二甲基硅氧烷链。
18.根据权利要求16的方法,其中封端剂是三甲基氯硅烷。
19.根据权利要求16的方法,其中R选自苯基、乙基、甲基、丁基、戊基和较大的烷基。
20.根据权利要求16的方法,其中R包含约50%的甲基和50%的苯基,结果提高了高度防水膜的耐磨性能。
21.一种处理基片G表面的方法,该表面包含OH或氮氢键,并被空气所包围,这种方法包括下列步骤:
a)用水将表面润湿;
R由极性基团组成,和
X选自酯类、醚类和卤素;
式中
n为约≥100,和
该膜与表面化学键合;
d)使链端上的X原子与周围空气中的水反应,生成在链端上具有以下结构的分子:
式中R1由化学上的活性基团组成;和
式中新的端分子用作固态离子交换剂,或用作化学结合的酶、螯合剂、染料、化学指示剂等的附着点。
22.根据权利要求21的方法,其中基片G包括二氧化硅分子。
23.根据权利要求22的方法,其中基片G是由选自玻璃、瓷器、和包含二氧化硅的材料的材料制成的。
24.根据权利要求21的方法,其中基片G包括有机分子。
25.根据权利要求21的方法,其中R是甲基。
26.根据权利要求21的方法,其中膜由二甲基硅氧烷链组成。
28.根据权利要求27的膜,其中R1与R相同。
29.根据权利要求27的膜,其中R是甲基。
30.根据权利要求27的膜,其中R选自苯基、乙基、甲基、丁基、戊基和较大的烷基。
31.根据权利要求27的膜,其中R由极性基团组成。
32.根据权利要求27的膜,其中R由非极性基团组成。
33.根据权利要求27的膜,其中R1由化学上的惰性基团组成。
34.根据权利要求27的膜,其中R1由化学上的反应性基团组成。
36.根据权利要求35的改进,其中硅氧烷基团由二甲基硅氧烷基团组成。
37.根据权利要求36的改进,其中最终端基团由三甲基硅氧烷基团组成。
38.根据权利要求35的改进,其中R1与R相同。
39.根据权利要求35的改进,其中R选自苯基、乙基、甲基、丁基、戊基、和较大的烷基。
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US09/185,202 | 1998-11-03 | ||
US09/185,202 US6245387B1 (en) | 1998-11-03 | 1998-11-03 | Capped silicone film and method of manufacture thereof |
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1998
- 1998-11-03 US US09/185,202 patent/US6245387B1/en not_active Expired - Lifetime
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1999
- 1999-01-29 DE DE69930503T patent/DE69930503T2/de not_active Expired - Lifetime
- 1999-01-29 CN CNB998153583A patent/CN1201871C/zh not_active Expired - Fee Related
- 1999-01-29 JP JP2000579367A patent/JP4230114B2/ja not_active Expired - Fee Related
- 1999-01-29 WO PCT/US1999/001939 patent/WO2000025938A1/en active IP Right Grant
- 1999-01-29 AT AT99903486T patent/ATE320861T1/de active
- 1999-01-29 BR BR9915824-8A patent/BR9915824A/pt not_active IP Right Cessation
- 1999-01-29 KR KR10-2001-7005600A patent/KR100436522B1/ko not_active IP Right Cessation
- 1999-01-29 IL IL14294099A patent/IL142940A/en not_active IP Right Cessation
- 1999-01-29 NZ NZ528143A patent/NZ528143A/en not_active IP Right Cessation
- 1999-01-29 AU AU23494/99A patent/AU764724B2/en not_active Ceased
- 1999-01-29 DE DE1137496T patent/DE1137496T1/de active Pending
- 1999-01-29 EP EP99903486A patent/EP1137496B1/en not_active Expired - Lifetime
- 1999-01-29 CA CA002349480A patent/CA2349480C/en not_active Expired - Fee Related
- 1999-01-29 ES ES99903486T patent/ES2171370T3/es not_active Expired - Lifetime
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2001
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103145346A (zh) * | 2011-12-06 | 2013-06-12 | 中国科学院过程工程研究所 | 一种改变光滑玻璃表面润湿性能的方法及其对玻璃微通道表面改性的应用 |
Also Published As
Publication number | Publication date |
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DE69930503D1 (de) | 2006-05-11 |
EP1137496B1 (en) | 2006-03-22 |
ECSP034889A (es) | 2004-06-28 |
ATE320861T1 (de) | 2006-04-15 |
DE1137496T1 (de) | 2002-08-22 |
BR9915824A (pt) | 2001-10-16 |
ES2171370T1 (es) | 2002-09-16 |
AU764724B2 (en) | 2003-08-28 |
WO2000025938A1 (en) | 2000-05-11 |
EP1137496A4 (en) | 2004-08-04 |
EP1137496A1 (en) | 2001-10-04 |
AU2349499A (en) | 2000-05-22 |
JP2002528270A (ja) | 2002-09-03 |
CA2349480C (en) | 2005-06-07 |
IL142940A (en) | 2004-12-15 |
IL142940A0 (en) | 2002-04-21 |
KR20010080935A (ko) | 2001-08-25 |
ES2171370T3 (es) | 2006-07-16 |
KR100436522B1 (ko) | 2004-06-16 |
US20010018130A1 (en) | 2001-08-30 |
CN1201871C (zh) | 2005-05-18 |
CA2349480A1 (en) | 2000-05-11 |
JP4230114B2 (ja) | 2009-02-25 |
US6245387B1 (en) | 2001-06-12 |
NZ528143A (en) | 2005-02-25 |
DE69930503T2 (de) | 2006-11-02 |
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