Wet-skid resistance and its mechanism of new ligation bands based on natural rubber

doi:10.11949/j.issn.0438-1157.20150774

CIESC Journal ›› 2016, Vol. 67 ›› Issue (4): 1392-1398.DOI: 10.11949/j.issn.0438-1157.20150774

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Wet-skid resistance and its mechanism of new ligation bands based on natural rubber

LIU Sa^1,2, JIN Dedao^1,2, WU Shaoyin¹, WANG Lin^1,2, REN Li^1,2

1. School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China;
2. National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, Guangdong, China

Received:2015-06-01 Revised:2015-09-02 Online:2016-04-05 Published:2016-04-05
Supported by:
supported by the National Natural Science Foundation of China(51232002, 51273072) and the Guangdong Provincial Science and Technology Department Project (2012A080203010, 2012A080800015).

天然橡胶套扎器胶圈的抗湿滑性能及机理

刘卅^1,2, 靳德道^1,2, 吴绍吟¹, 王琳^1,2, 任力^1,2

1. 华南理工大学材料科学与工程学院, 广东广州 510640;
2. 国家人体组织功能重建工程技术研究中心, 广东广州 510006

通讯作者: 任力
基金资助:
国家自然科学基金项目(51232002, 51273072); 广东省科技计划项目(2012A080203010;2012A080800015)。

Abstract

Abstract:

Considering the poor wet-skid resistance (WSR) and facile abscission of natural rubber (NR) when applied in ligation band, a new ligation rubber ring based on NR was prepared when used fumed silica as reinforcing agent and glycerol-gelatin as processing agent, which met with the application of ligation bands in mechanical property. Meanwhile, the property of WSR of the ligation rubber ring was characterized by stress, stress relaxation, surface roughness, micro-hardness and dynamic viscoelasticity. The results showed that the stretching stress of NR on 500% was 6.12 MPa, surface micro-roughness (Ra) was 9.754, and excellent micro-hardness and tand. Besides, the coefficient of maximum static friction on wet surface was 2.6. All above results indicated that a good wet-skid resistance was obtained in the new ligation rubber ring.

Key words: natural rubber, wet-skid resistance, elasticity, surface, silica

摘要：

针对天然橡胶作为套扎器胶圈材料使用时出现的抗湿滑性较差,套扎不牢固、易脱落的问题,选用天然橡胶作为基础材料,气相法白炭黑为补强剂,添加明胶甘油等加工助剂制备套扎器胶圈,在满足胶圈的力学强度的同时,借鉴胎面胶抗湿滑理论,对胶圈抗湿滑性能进行研究。分别用电子拉伸测试仪、AFM、DMA、摩擦系数仪等仪器对材料的力学性能、表面粗糙度、微观硬度、tand和最大静摩擦力进行表征。结果表明采用所提供的配方,使天然橡胶500%定伸应力达6.12 MPa,微观表面粗糙度(Ra)为9.754,同时具有较高的微观硬度和tand,在湿润表面的最大静摩擦系数达到2.6,获得了良好的抗湿滑性能。

关键词: 天然橡胶, 抗湿滑性能, 弹性, 表面, 二氧化硅

CLC Number:

R318.08

LIU Sa, JIN Dedao, WU Shaoyin, WANG Lin, REN Li. Wet-skid resistance and its mechanism of new ligation bands based on natural rubber[J]. CIESC Journal, 2016, 67(4): 1392-1398.

刘卅, 靳德道, 吴绍吟, 王琳, 任力. 天然橡胶套扎器胶圈的抗湿滑性能及机理[J]. 化工学报, 2016, 67(4): 1392-1398.

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Wet-skid resistance and its mechanism of new ligation bands based on natural rubber

天然橡胶套扎器胶圈的抗湿滑性能及机理

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