PC940-701沙伯基本---PC产品的残余地应力和地应力裂开状况是个突显的难题。将PC的弯曲强度试件拉伸应变并置放一定時间，当拉伸应变地应力超出其规定值时，便会产生外部经济撕破状况。当PC含量＞2.4万时，可承担的地应力为35MPa，含量为2.2万时，则为20MPa上下。因而，当残余地应力或产品所承担的地应力在这里标值下列时，一般不容易产生地应力裂开，乃至若产品仅保持在外部经济撕破环节而不会再进一步发展趋势得话，将不容易危害其性能指标.
PC属中等水平金属复合材料（但比金属材料或是好些许多）。比涤纶、聚酯切片、钛酸异丙酯甲基丙烯酸酯及PTFE差，但比ABS、聚砜、有机玻璃板等好。在PC中添加一些填充料可改进耐磨性能，比如添加PTFE、玻璃纤维等可减少摩擦阻力和磨损率，提升PV值。PC的耐温性和抗寒性都很好，长期性应用溫度的范畴较宽，可在-100~130℃范畴应用，其负载形变溫度高（130~140℃），且受负载危害小；老化性能在-100℃下列，乃至在-180℃的超低温下，也不会象夹层玻璃那般粉碎。
The residual in-situ stress and in-situ stress cracking of PCproducts are prominent problems. When the tensile strain of PCbending strength specimen is juxtaposed for a certain time, whenthe tensile strain in-situ stress exceeds the specified value, theexternal economic tearing will occur. When the PC content is morethan 24000, the in-situ stress can be 35 MPa, and when the PCcontent is more than 22000, it is about 20 MPa. Therefore, when theresidual in-situ stress or the in-situ stress of the product isbelow the standard value here, it is not easy to cause in-situstress cracking, and even if the product is only kept in theexternal economic tearing link without further development trend,it is not easy to harm its performance index
PC is a medium level metal composite material (but much betterthan metal material or PC). It is worse than polyester, polyesterchip, isopropyl titanate methacrylate and PTFE, but better thanABS, polysulfone and plexiglass. Adding some fillers to PC canimprove the wear resistance, such as adding PTFE and glass fibercan reduce the friction resistance and wear rate, and improve thePV value. The temperature range of long-term application is wide,which can be applied in the range of - 100 ~ 130 ℃. The loaddeformation temperature of PC is high (130 ~ 140 ℃), and the damagecaused by load is small; Under - 100 ℃ or even at - 180 ℃ ultra-lowtemperature, the aging property will not crush like laminatedglass.
