| 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 |
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| DOI： |
| 中文关键词: 天然胶乳 导尿管 胶膜 接枝共聚改性 亲水性 抗凝血性 |
| 英文关键词: natural rubber latex catheter film graft copolymerization modification hydrophilicity anti-coagulation |
| 基金项目:海南省自然科学基金资助项目（808200） |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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-vinylpyrrolidone(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 min and UV irradiation time of 10 min 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. |
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