热轧粘合工艺参数对非织造材料力学性能的影响

采用正交试验法综合分析热轧粘合方式与工艺参数对非织造材料力学性能的影响,以热熔胶含量、纤网密度、热轧压力、热轧时间为影响因素,讨论采用同种热轧粘合方式时,纤网密度与热轧工艺参数对非织造材料力学性能的影响,并进一步比较不同热轧粘合方式下非织造材料力学性能的差异性。结果表明:表面粘合非织造材料的断裂强力与顶破强力随着纤网密度的增加而增大,随着热轧压力与热轧时间的增加先增后减,断裂强力随着热熔胶含量的增加而增加,但顶破强力先增后减;面粘合非织造材料的断裂强力与顶破强力随着纤网密度的增加而逐渐增大,随着热轧压力的增加而逐渐减小,断裂强力随着热熔胶含量的增加而增大,随着热轧时间的延长而逐渐减小,顶破强力随着热熔胶含量的增加先增后减,随着热轧时间的延长而逐渐增大;并在相同的工艺参数下,表面粘合非织造材料的力学性能要优于面粘合。

Effect of Hot Rolling Bonding Process Parameters on Mechanical Properties of Nonwovens

In order to comprehensively analyze the influence of hot rolling bonding method and process parameters on the mechanical properties of non-woven materials,the influence of the density of fiber mesh and the parameters of hot rolling process on the mechanical properties of nonwovens was discussed in the same hot rolling method,taking the hot melt adhesive content,web density,hot rolling pressure and hot rolling time as the influencing factors by orthogonal test.The differences in mechanical properties of nonwovens under different hot rolling bonding methods were further compared.The results show that the breaking strength and bursting strength of the surface bonded nonwovens increase with the increase of the density of the web,and it increases first andthen decreases with the increase of hot rolling pressure and hot rolling time.The breaking strength follows the hot melt adhesive.The content increases with the increase of the content,but the bursting strength increases first and then decreases;the breaking strength and bursting strength of the surface-bonded nonwoven material gradually increase with the increase of the density of the web,and gradually decrease with the increase of the hot rolling pressure.The breaking strength increases with the increase of hot melt adhesive content,and gradually decreases with theincrease of hot rolling time.The bursting strength increases first and then decreases with the increase of hot melt adhesive content,and with the elongation of hot rolling time,it is gradually increased;and under the same process parameters,the mechanical properties of the surface-bonded nonwoven material are better than the surface adhesion.