发泡法制备建筑墙体高密度聚乙烯保温层及其性能研究  

Preparation and Properties of High Density Polyethylene Insulation Layer for Building Wall by Foaming Method

作　　者：马秀颖 MA Xiu-ying(JiuZhou Polytechnic,Xuzhou 221116,China)

机构地区：[1]九州职业技术学院,江苏徐州221116

出　　处：《塑料科技》2021年第10期21-24,共4页Plastics Science and Technology

摘　　要：对空心玻璃微珠(HGB)进行表面偶联修饰,制备改性玻璃微珠(mHGB),将mHGB与高密度聚乙烯(HDPE)混合,经模压发泡制备建筑墙体HDPE保温层板材。探究HGB与mHGB的含量对HDPE保温层材料性能的影响。结果表明:B3样品具有最佳的力学性能,其抗压强度和拉伸强度高于添加未改性HGB的HDPE保温材料,分别为38.4 MPa和20.3 MPa。同时,B3具有最佳的隔音性能,对不同频率的声波吸收较好。B3的导热系数较低为0.051 W/(m·K)。B3的疏水性能也较好,其接触角相比纯HDPE未发生较大的变化,实际应用中具有较好的耐久性。The surface coupling modification was carried out on hollow glass beads(HGB) to prepare modified glass beads(mHGB). The m HGB was mixed with high-density polyethylene(HDPE), and the HDPE insulation layer plate building wall was prepared by compression foaming. The effects of HGB and mHGB content on the properties of HDPE insulation layer were studied. The results show that the B3 sample has the best mechanical properties, and its compressive strength and tensile strength are 38.4 MPa and 20.3 MPa respectively, which are higher than those of unmodified HGB HDPE insulation material. At the same time, B3 has the best sound insulation performance and exhibits good absorption at different frequencies. B3 sample has the lowest thermal conductivity of 0.051 W/(m·K). The hydrophobic property of B3 is also good, and its contact angle is not changed greatly compared with pure HDPE, which has good durability in practical application.

关 键 词：高密度聚乙烯保温材料 空心玻璃微珠 隔音性能 隔热性能 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]