多级辊牵伸热黏合对聚乙烯非织造布微观结构及其性能影响研究OA
Microstructure and properties of polyethylene nonwoven fabrics prepared by multi-stage roller drawing-calendering thermal bonding process
针对聚乙烯(PE)非织造布力学性能差的问题,提出多级牵伸与多重热辊压黏合耦合工艺,研究了热黏合温度和牵伸比对非织造布微观结构、力学性能及防水性能的影响.结果表明,热黏合温度提升至122～125℃时,纤维间形成连续黏结网络,纵向抗张强度从0.34 kN/m增至1.37 kN/m,提升超3倍;牵伸比增加至1∶1.375时,非织造布取向提高,抗张强度进一步提升至1.53 kN/m;此外,热黏合处理使非织造布水接触角降低,热黏合温度为125℃时水接触角由未处理的133.6 °降低为108.3 °,疏水性减弱.
To address the poor mechanical properties of polyethylene(PE)nonwoven fabrics,this study proposes a cou-pled process combining multi-stage drawing and multi-roller calendering thermal bonding.The effects of thermal bonding temperature and draw ratio on the microstructure,mechanical properties,and water resistance of the nonwovens were systematically investigated.When the thermal bonding temperature was increased to 122～125℃,a continuous inter-fi-ber bonding network was formed,which increased the machine-direction tensile strength from 0.34 kN/m to 1.37 kN/m(an enhancement of more than 3 times).At a draw ratio of 1∶1.375,the orientation degree of the nonwoven fabric was improved,further increasing the tensile strength to 1.53 kN/m.Additionally,the thermal bonding treatment reduced the water contact angle to 108.3 °,indicating a decrease in the hydrophobicity of the PE nonwovens.
廖文泉;李长金;薛睿;赵磊;杨卫民;李好义
北京化工大学材机电工程学院,有机无机复合材料国家重点实验室,北京 100029中石化(北京)化工研究院有限公司,中国石化医用卫生材料研究与应用重点实验室,北京 100013北京化工大学材机电工程学院,有机无机复合材料国家重点实验室,北京 100029北京化工大学材机电工程学院,有机无机复合材料国家重点实验室,北京 100029北京化工大学材机电工程学院,有机无机复合材料国家重点实验室,北京 100029北京化工大学材机电工程学院,有机无机复合材料国家重点实验室,北京 100029
化学化工
聚乙烯非织造布热黏合热牵伸微观结构力学性能
polyethylenenonwoven fabricmulti-stage drawingthermal calendaringmicrostructuremechanical property
《中国塑料》 2026 (6)
65-69,5
国家自然科学基金(U22B6012)中国石化科技部项目(225079)
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