广东工业大学学报 ›› 2005, Vol. 22 ›› Issue (3): 7-10.

• 综合研究 • 上一篇    下一篇

含有机硅共聚物水凝胶合成及其透氧性能研究

  

  1. 西北工业大学材料学院; 仲恺农业技术学院; 广东工业大学轻工化工学院; 西北工业大学材料学院 陕西西安710072; 陕西西安710072; 广东广州510225; 广东广州510090; 陕西西安710072;
  • 出版日期:2005-07-02 发布日期:2005-07-02
  • 基金资助:

    国家自然科学基金(29976007);广东省自然科学基金(990129)

Study on Synthesis and Oxygen Permeability of Copolymer Hydrogel Containing Silicone for Contact Lens

  1. (1.School of Materials Science and Engineering,Northwestern Polytechnical University,Xi’an 710072,China;2.Zhongkai Agrotechnical College,Guangzhou 510225,China;3.Faculty of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510090,China)
  • Online:2005-07-02 Published:2005-07-02

摘要: 采用本体聚合法,以HEMA和NVP为单体,以Bis作为交联剂,用AIBN作为引发剂,加入有机硅(KH570)合成高透氧性的PVP共聚水凝胶接触透镜材料,研究了单体配比和温度等各因素与PVP共聚水凝胶接触透镜材料的透氧性能的关系.实验表明,共聚物水凝胶角膜接触镜材料的Dk/L值,随NVP的含量增加而增大;随KH570的增加而减小,当KH570用量为8%时,透氧率达到最大值45cm3/(cm2.s.mmHg);随渗透温度升高而增大;随膜厚度增大而减小. 

关键词: 水凝胶; 甲基丙烯酸羟乙酯; N-乙烯基吡咯烷酮; KH570; 透氧性能;

Abstract: In this paper,by noumenon polymerization method,PVP copolymer hydrogel is made using(HEMA) and NVP as monomers,N,N′-methylene bisacrylamide(Bis) as crosslinker and azobis iso butyro nitrile(AIBN)as initiator.The oxygen transmissibility of PVP copolymer hydrogel is analysized.It is found that oxygen transmissibility increases with the increase of NVP in the copolymer hydrogel,and decreases with the increase of KH570 in the copolymer hydrogel.Dk/L amounts to the maximum 45cm~3/(cm~2·s·mmHg)when the content of KH570 is 8%;it increases with the increase of temperature,and decreases with the increase of the membrane’s thickness.

Key words: hydrogel; hydroxythylmethacrylate(HEMA); N-vinylpyrrolidone(NVP); KH570; oxygen transmissibility;

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[2] 覃百花,邹翰.  软性角膜接触美容镜片的临床应用[J]. 眼科研究. 1997(04)

[1] 黎新明.  共聚物水凝胶接触镜材料的制备与性能研究[D]. 西北工业大学 2003
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