高强高模聚乙烯纤维纸基复合材料的制备及性能  

Preparation and properties of high strength and high modulus polyethylene fiber paper-based composite materials

作　　者：马锐 吕文志 金圣楠 孙昌 郭帅 龙柱 MA Rui;LYU Wenzhi;JIN Shengnan;SUN Chang;GUO Shuai;LONG Zhu(College of Textile Science and Engineering,Jiangnan University,Wuxi 214122,Jiangsu,China;College of Chemistry and Chemical Engineering,Qiannan Normal University for Nationalities,Duyun 558000,Guizhou,China;Lianyungang Fiber New Materials Research Institute Co.,Ltd.,Lianyungang 222002,Jiangsu,China)

机构地区：[1]江南大学纺织科学与工程学院,江苏无锡214122 [2]黔南民族师范学院化学化工学院,贵州都匀558000 [3]连云港纤维新材料研究院有限公司,江苏连云港222002

出　　处：《精细化工》2023年第2期415-423,共9页Fine Chemicals

基　　金：贵州省科技计划项目(黔科合支撑[2019]2860号)。

摘　　要：以高强高模聚乙烯(UHMWPE)短纤维和针叶木浆为原料,通过湿法成型技术结合树脂浸渍热压方法制备了UHMWPE纤维纸基复合材料,研究了原纸制备工艺和浸渍热压工艺对UHMWPE纤维纸基复合材料性能的影响。结果表明,当UHMWPE纤维与针叶木浆质量比为7∶3、针叶木浆打浆度为58°SR、酚醛树脂水溶液质量分数为10%、上胶量为44%、热压工艺为15 min、10 MPa、130℃时,制得的UHMWPE纤维纸基复合材料性能较好。当原纸经过浸渍热压后,所制备的UHMWPE纤维纸基复合材料抗张指数为59.11 N·m/g,与原纸相比抗张指数提高了6.9倍,表面变得更光滑,同时具有较低的介电常数(约1.97)、介质损耗因数(0.45×10^(–2))和较好的热稳定性。High strength and high modulus polyethylene(UHMWPE)staple fiber paper-based composite materials were prepared from UHMWPE staple fiber and softwood pulp via wet forming technology combined with resin impregnation and hot pressing.The effects of base paper preparation technology and hot pressing technology on UHMWPE fiber paper-based composite materials were then investigated.The results showed that,under the conditions of the mass ratio of UHMWPE fiber to softwood pulp 7∶3,the beating degree of softwood pulp 58°SR,the mass fraction of phenolic resin solution 10%,the sizing amount 44%,and the hot pressing process conducted at 10 MPa and 130℃for 15 min,the UHMWPE fiber paper-based composite material exhibited good properties.The UHMWPE fiber paper-based composite material prepared from impregnated and hot pressed base paper showed a tensile resistance index of 59.11 N·m/g,which was increased by 6.9 times,a smoother surface,a low dielectric constant of~1.97,a dielectric loss factor of 0.45×10^(–2)and good thermal stability.

关 键 词：UHMWPE纤维 针叶木浆 纸基复合材料 酚醛树脂 力学性能 介电性能 造纸化学品 

分 类 号：TS722[轻工技术与工程—制浆造纸工程]