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盛業(yè)塑膠原料有限公司
主營(yíng)產(chǎn)品： 工程塑料，通用塑料，熱塑性彈性體 |
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盛業(yè)塑膠原料有限公司
主營(yíng)產(chǎn)品： 工程塑料，通用塑料，熱塑性彈性體 |
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塑料機(jī)械網(wǎng)采購(gòu)部電話：0571-88918531
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更新時(shí)間：2018-05-15 17:41:41瀏覽次數(shù)：664
聯(lián)系我們時(shí)請(qǐng)說明是塑料機(jī)械網(wǎng)上看到的信息，謝謝!
我公司銷售的材料均為*材料，咨詢采購(gòu)！ 吳生 186 6517 6937
Desmopan 795U的彈性模量和定伸應(yīng)力：彈性模量是指材料在比例限度內(nèi)，張應(yīng)力與相應(yīng)的應(yīng)變之比，即楊氏模量。表中所示的就是TPU的彈性模量，*定伸應(yīng)力和300%定伸應(yīng)力。此表格選擇了兩種不同配方下制成的TPU，以及不同硬段含量下的數(shù)據(jù)。可見彈性模量和定伸模量都隨硬段含量的增加而增加。結(jié)果很顯然，硬段增加，模量也會(huì)隨之上升（材料會(huì)變“硬" ）從微觀角度解釋的話，硬段含量增加，形成硬段相的球晶體積分?jǐn)?shù)增加，分散在軟段基料上的硬段分散微區(qū)逐漸連通而接近連續(xù)相，從而提高了模量。
OEM:
Matra Nor Communications (FR)
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
