一种新型纳米增透防雾膜对光学镜片的表面改性

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中院究沙中市南肝心大胆4,学肠1湖0湘外0南0雅科省8 长医研 李年市年医士从病研,坚生人治究中学事副,☆,疗。南院肝湖汉教,、大毕胆生南男族授学业外物省,,,12湘,科材湘主9060料乡雅博疾要95
lijian869@
通德中院究沙,中市讯南肝博心作大胆4士,者学肠1湖,0:湘外0南教0张雅科省8授长阳医研,
BACKGROUND: We use the addition polymerization of vinyl double bond to surface modify transparent substrate, and make a new film that has more ideal performances, such as fastened binding force, high hydrophilicity and enhanced transmittance. OBJECTIVE: To prepare a stable optical anti-fogging coating and high-quality anti-reflective characteristics by surface modification. METHODS: Anti-reflective and high-hardness Si-O-Si network structure precursor was made by tetraethyl orthoslicate, vinyl triethoxy silane, ethanol, HCl and H2O with the sol-gel method. The nano-film was prepared using addition polymerization theory, by using Si-O-Si as solvent, mixing ammonium acrylate, ammonium methacrylare and ammonium persulfate together, and using 2-hydroxyethyl methacrylate, methyl methacrylate as auxiliary functional groups. The structure was determined by fourier transform infrared spectroscopy and X-ray diffraction, the transmittance was assayed with UV spectrophotometer before and after coating, surface structure was measured by scanning electron microscopy, the particle size, film hardness and water contact angle were measured. RESULTS AND CONCLUSION: The hydrophilic anti-flogging nano-film not only had Si-O-Si network structure, but also had polymeric hydrophilic groups. The maximum transmittance was 94.6%, which mean a good transmittance of the film. The particle size of nano-film was (265.0±43.8) nm in diameter; the water contact angle was 14.5°, which showed good hydrophilicity. The coating hardness was 6 H, and the binding degree was about 95.1%. The nano-film had -CH = CH2 bond in the Si-O-Si network structure, therefore, it could connect with hydrophilic groups. As soon as the water droplet contacted the surface covered with the nano-film, it would spread over the surface, suggesting that a high transmittance surface would be achieved. Besides high transmittance and hardness, this film had other properties such as antireflection and antifogging. The preparation technology is feasible, and the quality controlling method is simple and reliable.
Associate professor, Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China lijian869@
李 坚,刘佳一,张阳德
Effect of a new anti-reflection, anti-fogging nano-film on surface modification of optical glasses
Li Jian, Liu Jia-yi, Zhang Yang-de
Abstract
Supported by: the National High-Tech Research and Development Program of China (863 Project), No. 2007AA021907*
Received: 2010-08-12 Acceptedቤተ መጻሕፍቲ ባይዱ 2010-09-15
doi:10.3969/j.issn.1673-8225.2011.03.016
李坚,刘佳一,张阳德.一种新型纳米增透防雾膜对光学镜片的表面改性 中 [J]. 国组织工程研究与临床康复, , 2011
15(3):445-449.
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zyd@
中文文图献章分标编类识号号码:16::RB733-188225
(2011)03-00445-05
收稿日期:2010-08-12 修回日期:2010-09-15
(20100809001/GW •Y)
ISSN 1673-8225 CN 21-1539/R CODEN: ZLKHAH
Correspondence to: Zhang Yang-de, Doctor, Professor, Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China zyd@
0 引言 材料表面结雾是一种自然现象,形成原理
是气温降低造成水的饱和蒸气压减低于空气中 的水蒸气分压,使水蒸气凝结成小水滴[1-2]。因 此,当材料表面和外界环境之间存在显著温差
时,表面就会出现水雾甚至是水滴[3-4]。例如, 冬季时人戴着眼镜从屋外进入室内,眼镜表面 会凝结水雾影响人的视线。当前,作为材料行 业中的一大类,透明光学材料的表面改性技术 正朝着增透、防雾、高硬度的方向发展[5],同时 该技术也是国内外相关领域研究的热门课题。 目前最为经济合理的防雾方法就是在玻璃上涂
Li J, Liu JY, Zhang YD. Effect of a new anti-reflection, anti-fogging nano-film on surface modification of optical glasses. Zhongguo
Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu. 2011;15(3):445-449.
1 材料和方法
设计:应用测量研究。 时间及地点:于2009-06/2010-03在卫生部纳米生
物技术重点实验室完成。
材料:
试剂:
试剂中文名称 规格 生产厂家
正硅酸乙酯
分析纯 上海凌峰化学试剂有限公司
无水乙醇
分析纯 国药集团化学试剂有限公司
Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
☆ Li Jian , Doctor,
445

沫一层亲水物质,经烘干后得到牢固、稳定的防雾膜[6-8]。 经研究表明,以Si-O-Si网状结构作为前体物的水溶胶中 加入具有乙烯基双键的丙烯酸类亲水材料,既能保证膜层 具有良好的亲水性和透光率[9-10],又能保证膜层与基片连 接牢固。
本实验从丙烯酸类材料与光学基片连接不牢固的缺 点出发,引入Si-O-Si网状结构前体物概念,并利用加聚 反应使亲水材料和前体物成为一体,从而克服原亲水材料 连接性差的缺点,实现对光学透明基材的表面改性。
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摘要
背亲景水:性利和用高透乙光烯率基的双防键雾的材加料聚。反应原理对透明基材进行表面改性,可研制既能与光学玻璃等透明基材牢固连接,又具有高 目方前助外接的法体官分触::物能光角通以。团光。过正以,度表硅前采计面酸体用测改乙物加定性酯为成镀的、基聚膜方乙质合前法烯,法后研基加制材制三入备料透乙丙纳的光氧烯米透性基酸级光高硅铵增率、烷、透,防为甲、以雾基基高扫效质丙硬描果,烯度电好加酸亲子的入铵水显稳和乙防微定过醇雾镜光硫、膜测学酸盐。量防铵酸以材雾,、红料膜并双外表。加蒸光面入水谱结甲,分构基采析,丙用仪并烯溶、测酸胶X量-材β射凝-料线胶羟的衍法乙粒射制酯径仪备、大测增甲小定透基、膜、丙膜层高烯层结硬酸硬构度甲酯度,防等和以雾辅水紫膜 结层膜开果具层后与有硬可结良度以论好为连:的接6H亲透亲,水光水结防性性合雾。官度膜液能为中态团9不防。5.仅雾当1%存材水。在料滴采粒接S用i径-触O正为防-S硅(i雾2网酸6膜5状乙.表0结酯±面4构、3时.,乙8会)还烯铺n存基m展在。三开有水乙来机接氧并聚触基形合角硅成亲为烷均水等1匀基4材.的5团料°水,。制膜显镀成,示膜的提为透S高高光i-O透亲率-S光水最i 率网性高。状材值在结料为保构。94证在“.6膜乙铅%层烯笔,增法基提透双示”、键该测高打膜得 硬关度键的词同:时表,面还改保性证;了光光学学防镜雾片膜的;防溶雾胶功-凝能胶。法该;制S备i-O工-S艺i 网可状行结性构好;,透质光量率控;制亲方水法性简便、可靠。