CAJ | 학술논문

以亲水性聚硅氧烷KGF-903共混改性天然乳胶,通过拉力试验、老化试验、接触角测量和扫描电子显微镜等研究了聚硅氧烷的添加量对天然乳胶力学性能、抗老化性能、亲水性能和表面形貌的影响.结果表明,KGF-903含量在1.5%时拉伸强度有最佳的改性效果;KGF-903添加量约为3%时断裂伸长率达到最大,老化前后的断裂伸长率比改性前分别提高57%和50%.随着KGF-903含量的增加,改性天然乳胶片的水接触角逐渐减小;扫描电子显微镜观察的结果表明,添加聚硅氧烷能改变乳胶的分散状态.利用小试的最佳配方(即KGF-903的添加量为1.5%)生产了2批次医用导尿管,其表面光洁度、导尿管球囊的成品率、管身硬度、连接器与导尿管排泄锥形接口所承受的拉力和充气漏斗与引流漏斗连接处所承受的拉力等均有显著的提高,有效改善了产品的质量.
이친수성취규양완KGF-903공혼개성천연유효,통과랍력시험、노화시험、접촉각측량화소묘전자현미경등연구료취규양완적첨가량대천연유효역학성능、항노화성능、친수성능화표면형모적영향.결과표명,KGF-903함량재1.5%시랍신강도유최가적개성효과;KGF-903첨가량약위3%시단렬신장솔체도최대,노화전후적단렬신장솔비개성전분별제고57%화50%.수착KGF-903함량적증가,개성천연유효편적수접촉각축점감소;소묘전자현미경관찰적결과표명,첨가취규양완능개변유효적분산상태.이용소시적최가배방(즉KGF-903적첨가량위1.5%)생산료2비차의용도뇨관,기표면광길도、도뇨관구낭적성품솔、관신경도、련접기여도뇨관배설추형접구소승수적랍력화충기루두여인류루두련접처소승수적랍력등균유현저적제고,유효개선료산품적질량.
The natural rubber latexes were blended with hydrophilic organosiloxane KGF-903 for the improvement of its performance. The effect of the content of organosiloxane on blended natural rubber latex was investigated through mechanical, antiaging, hydrophilic and morphological measurement. It indicated that the mechanical and antiaging properties were improved with the addition of organosiloxane at an optimal content of 1.5%, at which the tensile strengths of improved natural rubber before and after the aging were increased by 37% and 44%, respectively. The elongations at break were monotonously increased with the addition of organosilicone at a saturated content of 3%, at which the elongations at break were improved by 57% and 50%. The more the content of organosilicone, the smaller the contact angle of the nature rubber latex. SEM analysis indicated that the dispersive state of nature rubber latex was improved with the addition of organosilicone. The two batch formulas were adopted in the manufacture of urethral catheter with an optimal addition of 1.5% of KGF-903. The catheters were obtained with smooth surface, finer evenness, moderate hardness and favorable yield of latex sacculus. The separation forces between connector and the interface of conical drainage as well as the tensile force between gas loading filler and drainage tube were improved, which guaranteed the safety of Foley latex in clinic use.