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Citation: JIANG Guo-Min, ZHAO Qun, GU Xue-Fang, ZHANG Yu, WANG Xu-Rong, GE Cun-Wang. Complexes of Natural Rubber Latex Blended with Hydrophilic Organosiloxane[J]. Chinese Journal of Applied Chemistry, ;2010, 27(2): 151-154. doi: 10.3724/SP.J.1095.2010.90162 shu

Complexes of Natural Rubber Latex Blended with Hydrophilic Organosiloxane

a. School of Chemistry and Chemical Engineering, Nantong University, Nantong 226007;
b. Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing;
c. Ke Guang New Material Limited Company of Nantong, Nantong 226007

Received Date: 4 March 2009
Revised Date: 10 May 2009

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.
- nature rubber latex,
- organosiloxane,
- blend,
- mechanical and antiaging properties,
- hydrophilicity,
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