【摘 要】
：
Disposable materials receive an annually steady growth in the field of medical applications as surgical gowns,isolation gowns,and medical drapes to avoid the cross contamination from the repeated use
【机 构】
：
The University of Tennessee,Knoxville,USA;South China University of Technology,China
【出 处】
：
2015 International Conference on Advanced Fibers and Polymer
论文部分内容阅读
Disposable materials receive an annually steady growth in the field of medical applications as surgical gowns,isolation gowns,and medical drapes to avoid the cross contamination from the repeated use of a durable protective apparel in a hospital.There are four levels of liquid barrier performance according to ANSI/AAMI PB70:20121 in terms of liquid impact penetration,hydrostatic pressure,and blood penetration.SMS(spunbond,meltblown,spunbond)materials and porous membranes are widely used as medical protective clothing.SMS materials are usually made to achieve up to Level 3,which requires a hydrostatic pressure of greater than 50 cm.Above that,Level 4 requires the liquid barrier property that resists to the penetration by blood,in which a porous membrane is employed to laminate with a substrate.The objective of this paper is to use the pore size to estimate the hydrostatic pressure,and further to correlate the hydrostatic pressure with the resistance to blood penetration.Theories were successfully applied to calculate the pore size and the hydrostatic pressure of a fibrous material and to correlate the hydrostatic pressure with the blood penetration.The requirement of the fiber fineness capable of resisting to the penetration of blood was also calculated.
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