1) HDPE method
HDPE 法
2) high-density polyethylene
HDPE
1.
Based on constitutive relationship of thermal viscoelastic integral-mode and the properties of material, which depend on temperature fluctuation and the effect of phase-transition latent heat, heat-force coupling function and load step character of ANSYS were employed to simulate the hot-plate welding procedure of high-density polyethylene (HDPE) plastic pressure pipe.
基于热粘弹性积分型本构关系,考虑材料性能依赖于温度变化及相变潜热的影响,利用AN SYS热-力耦合及载荷步功能模拟结晶型高密度聚乙烯(HDPE)塑料压力管道热板焊接过程,并对焊接接头的应力分布进行有限元分析,得到了环向、轴向以及径向瞬态应力分布的基本规律。
2.
The chemical structure and adhesiveness of high-density polyethylene (HDPE), functionalized through ultraviolet irradiation at environmental temperature of 35～70 ℃ in air, and the compatibilization of the ultraviolet irradiated HDPE in HDPE/polyvinyl alcohol (PVA) fiber blends were investigated by elementary analysis, XPS, GPC, gel measurement and mechanical properties test.
采用元素、XPS、GPC分析 ,凝胶和力学性能测定 ,研究了空气中不同环境温度下紫外辐照官能化HDPE的结构、粘着性以及紫外辐照官能化HDPE对HDPE/聚乙烯醇 (PVA)体系的增容作用 。
3) HDPE membrane
HDPE膜
1.
Fly habits and fly eradication measures of waste landfill site were introduced,using HDPE membrane as cover material,fly eradication test was carried out,economic and environmental benefits analysis was made out,related suggestion was put forward.
介绍了垃圾填埋场苍蝇习性和灭绳措施,并用HDPE膜作为覆盖材料进行了灭蝇试验,并进行了经济和环境效益分析,提出了建议。
2.
It also describes welding of HDPE membrane and formation of clay layer.
介绍了常见的用于垃圾填埋场的防渗材料,以工程实例探讨了垃圾填埋场防渗层的结构设计及其优化方案,并对HDPE膜的焊接和粘土层的施工作了介绍。
3.
The tank with HDPE membrane flexible floor is a new kind of anti-seepage hydraulic structure,in which the conventional reinforced concrete floor is replaced by HDPE membrane.
HDPE膜柔性底板水池是一种新型抗渗水工构筑物,它采用HDPE膜取代普通水工构筑物的钢筋混凝土底板。
4) HDPE pipe
HDPE管
1.
Old pipeline rehabilitation construction by using the HDPE pipe insertion lining in Handan
邯郸市采用HDPE管穿插内衬修复旧管道的施工
2.
In order to solve maintenance problems of water supply pipelines,a rehabilitation technique of HDPE pipes that have the features of high strength,anticorrosion,long service life,smooth wall surface and antiscaling was developed.
为了解决城市供水管维修问题,开发了HDPE管穿插修复技术。
3.
The essay introduced the characteristics of HDPE pipe s application in drainage systems.
介绍了目前新型的排水管材HDPE管的性能,通过在大口径排水工程中的应用实例,经过管材比选和施工中具体的问题,突出的介绍了该管材的应用特点。
5) HDPE
HDPE膜
1.
Application Study on Using HDPE as the Middle Cover Material in Landfill Site;
HDPE膜作为填埋场中间覆盖材料的应用
2.
Wet-applied self-adhered waterproofing membrane with HDPE reinforcement;
湿铺型HDPE膜自粘防水卷材
3.
Research on factors influencing HDPE-sand interface frictional properties by tilting table tests;
影响HDPE膜与砂土接触面摩擦特性因素的斜板试验研究
补充资料：HDPE
结构式：[-CH2-CH2-]n
性状 无嗅、无味、无毒的白色颗粒或粉末。熔点13l℃。密度0．942-0．950g／cm3。软化点120-125℃。脆化温度-70℃。最高使用温度100℃。具有优良的耐热、耐寒、耐磨性及介电性、化学稳定性。在室温下几乎不溶于任何有机溶剂。能耐多种酸碱及各种盐类溶液的腐蚀。吸水性和水蒸气渗透性均低。但耐老化性能较差。
生产方法 主要采用泥浆法。在催化剂四氯化钛和一氯二乙基铝存在下，控制压力为〔1-5)×105Pa，温度65-75℃，将99％以上的乙烯，在溶剂汽油中聚合得到浆状物，再经醇解、中和、水洗、干燥、造粒而得。
拉仲屈服强度(MPa) ＞23．0
伸长率 (％) ＞200
冲击强度(kJ／m2) ＞9
维卡软化点(℃) >120
脆化温度(低温 冲击，℃)<70
体积电阻率(Ωcm) 1×1017
介电强度(kV／mm) ＞35
介电常数 2.35
介电损耗角正切 ＜5×10-4
应用领域 医药和化学工业用于制造中空制品，如桶、瓶及贮槽等。食品工业用于制造包装容器。机械工业用于：制造盖壳、手柄、手轮等通用机械零件，造纸工业用于制造合成纸。农业上用于制造覆盖薄膜。电气工业用于制造电缆绝缘及电气零部件。渔业上用于制造渔网。石油工业用于制造输水管及酸、减、盐等溶液输送管。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条