欧美国产精品综合_欧美日韩高清一道_亚洲欧美中文国产日韩在线_国产无套粉嫩白浆在线精品小说_欧美色视频综合在线观看_亚洲一区变态另类_亚洲午夜无码av毛片久久同性_中文无码人妻免费视频_野花日本大全免费观看中文7_国产国语对白精品视频

The pressure resistance of ultra-high molecular weight polyethylene sheets is related to impact resistance. The impact strength and its related molecules, the molecular weight is less than 2000000. With the increase of molecular weight, the impact strength increases by about 2000000, reaching a peak, then peak, The molecular weight and increased impact strength are reduced. This is due to the fact that the molecular chain is a very disturbing crystal lamp, a large molecule that absorbs large impact energy in the amorphous region. According to the literature, the measured values of the astm-d256 method of plastics such as impact strength ultra-high molecular weight polyethylene sheets are compared by comparison: the impact properties can be divided into ultra-high molecular weight polyethylene sheets comparable to impact polycarbonate at room temperature. Used in engineering plastics. Ultra-high molecular weight polyethylene sheets are ridiculous even at low temperatures, and even at liquid and gas temperatures - 269 oc, they can also have better impact resistance, and this good temperature characteristic makes ultra The application of high molecular weight polyethylene sheets to low temperature engineering.