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Citation: AO Ning-Jian. Natural Rubber Latex Modified by Nano SiO₂ to Prepare Medical Gloves[J]. Chinese Journal of Applied Chemistry, ;2005, 22(6): 673-675. shu

Natural Rubber Latex Modified by Nano SiO₂ to Prepare Medical Gloves

AO Ning-Jian ^,

1.
Institute of Biomedical Engineering, Jinan University, Guangzhou 510632

Corresponding author: AO Ning-Jian,
Received Date: 20 August 2004
Available Online: 19 December 2004
Fund Project: 国家自然科学基金资助项目(50063002) (50063002)

Nano SiO₂ modified natural rubber latex treated by ultrasonic and special dispersing agent was used to prepare medical gloves,and the mechanical and aging properties of the product were investigated.The results show that the tensile strength of the glove with 0.5% (mass fraction) nano SiO₂ was 20.2 MPa when the contrast was 15.9 MPa.After 2% (mass fraction) nano SiO₂ was filled in the latex,the tensile strength of the product increased to 25.5 MPa.With the increase of the nano SiO₂ content,strength at 300% and 500% elongation of the products increased gradually.Addition of nano SiO₂ particles didn't change the elongation at break and elasticity of the glove.After 33 hours aging in hot air at 100℃,the tensile strength of the glove with 2% (mass fraction) nano SiO₂ was as high as 12.7 MPa.
- nano silica,
- natural rubber latex,
- medical glove,
- property
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Natural Rubber Latex Modified by Nano SiO₂ to Prepare Medical Gloves