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原厂*Bayer Desmopan DP85784A德国拜耳报价相关介绍如下:
Desmopan 795U的弹性模量和定伸应力:弹性模量是指材料在比例限度内,张应力与相应的应变之比,即杨氏模量。表中所示的就是TPU的弹性模量,*定伸应力和300%定伸应力。此表格选择了两种不同配方下制成的TPU,以及不同硬段含量下的数据。可见弹性模量和定伸模量都随硬段含量的增加而增加。结果很显然,硬段增加,模量也会随之上升(材料会变“硬” )从微观角度解释的话,硬段含量增加,形成硬段相的球晶体积分数增加,分散在软段基料上的硬段分散微区逐渐连通而接近连续相,从而提高了模量。
Desmopan? / Bayblend? Radio-set Housing for the French police
OEM:
Matra Nor Communications (FR)
Part design:
The Matra company developed the new, stable housing for the professional radio-sets used by the French police in a two-stage process employing elastic Desmopan? 385 and rigid PC-ABS (Bayblend?).
In the first step, the prefabricated housing components are injection molded in Bayblend? T85. In the second step the highly-stressed corners of the housing are overmolded with Desmopan? 385, offering a high resistance to wear and tear.
A perfect bond is essential in order to cope with the high mechanical stresses that act on this heavy unit when in service.
The relatively high volume and weight of the radio set are caused by the requirement for 18-24 hours' standby operation and ease of use. Additional requirements are a readily-legible display and a high transmitting and receiving power even under extreme conditions. The rechargeable battery alone accounts for some 40% of the overall weight of 400 g.
The housing was required to be "dust- and splash-proof" as specified in IP 54.
Detailed Information:
Product: Desmopan 385 S