CAJ | 학술논문

采用汉麻粉体与 PVDF 共混的方法对 PVDF 膜进行改性，测试共混膜的微观结构和热学性能、力学性能以及与碳纤维布之间的层间剥离强度等性能，并研究汉麻粉体含量对于共混膜性能的影响.实验结果表明：随着汉麻粉体质量分数的增加，共混膜表面光洁度降低，断面结构越发不规整，密度及厚度增大，共混膜变得易碎，而力学性能大幅下降；随着汉麻粉体质量分数的增加，共混膜与碳纤维布/木质复合材料之间的层间剥离强度先增大后减小，当汉麻粉体质量分数为6%时，层间剥离强度达到最大值0.36 N/mm.
채용한마분체여 PVDF 공혼적방법대 PVDF 막진행개성，측시공혼막적미관결구화열학성능、역학성능이급여탄섬유포지간적층간박리강도등성능，병연구한마분체함량대우공혼막성능적영향.실험결과표명：수착한마분체질량분수적증가，공혼막표면광길도강저，단면결구월발불규정，밀도급후도증대，공혼막변득역쇄，이역학성능대폭하강；수착한마분체질량분수적증가，공혼막여탄섬유포/목질복합재료지간적층간박리강도선증대후감소，당한마분체질량분수위6%시，층간박리강도체도최대치0.36 N/mm.
Hemp powder and PVDF blended approach were used to modify PVDF membrane, then the blend interlayer film microstructure and thermal properties, mechanical properties as well as peel strength between CFRP and other properties were tested, and the influence of hemp flour content on the blend membrane performance was studied. Experimental results show that with the increase of the mass fraction of hemp powder, blend membrane surface finish lower, more irregular cross -section structure, density and thickness increase, the blend film becomes brittle, while mechanical properties dropped significantly; with the increase of the mass fraction of hemp powder, the inter-layer blend membranes with CFRP / wood composites, interlaminar strength firstly increases and then decreases, when the mass fraction of hemp powder is 6%, the maximum interlaminar strength value is 0.36 N/mm.