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·­Ò룺The elastic materials mainly used in Isolated Individual Protective Equipments (IIPE) such as mask, overgarment, gloves and footwear were butyl rubber. Its high resistance derives from the dense side methyl groups on the backbones which can prevent the thermal motion of other small molecules effectively. However, great internal friction originated from the dense side methyl groups will result to poor resilience, and finally affect the properties of IIPE. Resilience of butyl rubber can be improved by blending with other rubbers such as NR, Q, EPDM and BR which have low internal friction, unfortunately, these rubbers would decrease the resistance of the blend unavoidably due to they offered rather low resistances to the penetration of chemical warfare. Since the resistance was strongly depended on the diffusion behavior of chemical warfare inside the rubber, Fick¡¯s second law would be applied in the diffusion of chemical warfare in the butyl rubber blend, and established one dimension unsteady diffusion model in this work. The influence of morphology on its diffusion behavior was also investigated. The purpose of this project is to providing necessary parameters and theoretical basis for future material design of IIPE.

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ztj009521

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xpz-wdy: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2015-02-04 07:53:08
xpz-wdy: ½ð±Ò+5, ¡ïÓаïÖú 2015-02-04 15:03:12
×îºóÒ»¾ä¸Ä³ÉThe purpose of this project is to provide necessary parameters and theoretical basis for future material design of IIPE.
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2Â¥2015-02-03 22:16:50
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Shinein89

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xpz-wdy: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2015-02-04 10:33:55
xpz-wdy: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2015-02-04 15:03:42
¡°which can prevent the thermal motion of other small molecules effectively¡±¡ª¡ª¡°which effectively prevent other small molecules from thermal motion  ¡±
"However, great internal friction originated from the dense side methyl groups will result to poor resilience"¡ª¡ª¡°However, quite amount of internal friction originated from the dense side methyl groups results in poor resilience¡±
"Resilience of butyl rubber can be improved by blending with other rubbers such as NR, Q, EPDM and BR which have low internal friction, "¡ª¡ªBlending with other rubbers with low internal friction, such as NR, Q, EPDM and BR, is an alternative way to improve Resilience of butyl rubber.
"Since the resistance was strongly depended on the diffusion behavior of chemical warfare inside the rubber, Fick¡¯s second law would be applied in the diffusion of chemical warfare in the butyl rubber blend, and established one dimension unsteady diffusion model in this work"¡ª¡ªSince the resistance is  closely related to the diffusion behavior of chemical warfare inside the rubber, Fick¡¯s second law would be applied in the diffusion of chemical warfare in the butyl rubber blend, and one dimension unsteady diffusion model was established in this work.
3Â¥2015-02-04 09:55:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xpz-wdy

Òø³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
3Â¥: Originally posted by Shinein89 at 2015-02-04 09:55:03
¡°which can prevent the thermal motion of other small molecules effectively¡±¡ª¡ª¡°which effectively prevent other small molecules from thermal motion  ¡±
"However, great internal friction orig ...

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