导尿管胶膜表面接枝共聚改性研究  

Surface modification of nature rubber catheter film via graft copolymerization

作　　者：孙琴[1,2] 余和平[2] 卢光[2] 曾宗强[2] 

机构地区：[1]海南大学理工学院,海南海口570228 [2]中国热带农业科学院农产品加工研究所农业部热带作物产品加工重点开放实验室,广东湛江524001

出　　处：《橡胶工业》2010年第7期421-426,共6页China Rubber Industry

基　　金：海南省自然科学基金资助项目(808200)

摘　　要：利用氩等离子体预处理,结合紫外光引发,实现N-乙烯基吡咯烷酮(NVP)在天然胶乳导尿管胶膜表面的接枝共聚。通过傅立叶转换红外光谱、扫描电子显微镜、接触角以及血小板粘附试验考察了NVP接枝共聚改性对导尿管胶膜表面形态、亲水性和抗凝血性的影响。结果表明,等离子体预处理2 min、紫外光照射10 min,可以得到较好的改性效果;经过NVP接枝共聚改性的导尿管胶膜表面的接触角由102.5°大幅下降至58.6°,血小板粘附数量明显减小,显著提高了导尿管胶膜的亲水性和抗凝血性。The surface of pre-vulcanized natural rubber latex（NRL） film of catheter was modified by argon plasma pretreatment and subsequent UV-inducing graft copolymerization with N-vinylpyrro-lidone （NVP）. Fourier transform infrared （FTIR） spectroscopy, scanning electron microscope （ SEM）, water contact angle and platelet adhesion tests were carried out to investigate the effects of surface graft copolymerization of NVP on the morphology, hydrophilic and anti-coagulant properties of NRL film. The results showed that,the Ar-plasma pretreatment time of 2 rain and UV irradiation time of 10 rain were the proper condition for NVP graft copolymerization onto NRL film;the water contact angle of NRL film reduced from 102.5° to 58.6° and the numbers of adhered platelets decreased obviously after graft copolymerization of NVP, indicating the great improvement of hydrophilic and anti- coagulant characteristics of NRL film.

关 键 词：天然胶乳 导尿管 胶膜 接枝共聚改性 亲水性 抗凝血性 

分 类 号：TQ331.2[化学工程—橡胶工业] TQ336.6