高透成型纸的表面渗透性及对中线胶粘合性能的影响

Surface Permeability of High Porosity Plug Wrap Paper and Its Effect on Adhesive Property of Central Line Adhesive

关键词:  高透成型纸  渗透性  中线胶  粘合性能  接触角

Key Words:high porosity plug wrap paper  permeability  central line adhesive  adhesive property  contact angle

摘要:为研究高透成型纸和滤棒丝束粘合不良问题的成因，本研究分析了高透成型纸的结构和特性，采用动态接触角法研究了高透成型纸的表面渗透性，并探讨了渗透性对中线胶粘合性能的影响。结果表明，高透成型纸紧度较低，纤维分丝帚化不明显，纤维之间存在大量的孔隙，水在其表面具有极强的渗透性。中线胶在高透成型纸表面的渗透性与水有很大不同，黏度是影响中线胶渗透的主要因素，黏度越低，渗透越快。中线胶在高透成型纸表面的渗透性与粘合效果密切相关，中线胶的黏度越高，对高透成型纸的粘合效果越好。但不同的中线胶有不同的最佳开放时间窗口，超出该时间窗口会出现粘合不良的问题。

Abstract:In order to study the causes of adverse problems with poor adhesion performance between high porosity plug wrap paper and filter rod， the structure and characteristics of high porosity plug wrap paper were analyzed， the permeability on the surface of high porosity plug wrap paper was studied by dynamic contact angle method， and the effect of permeability on adhesive property of central line adhesive was also discussed. The results showed that the high porosity plug wrap paper had a low density， no obvious fiber splitting， a large number of pores between the fibers， and strong permeability of water on its surface. The permeability of central line adhesive on the surface of high porosity plug wrap paper was very different from that of water. The viscosity was the main factor affecting the permeability of central line adhesive. The viscosity was lower， the penetration was faster. The permeability of the central line adhesive on the surface of the high porosity plug wrap paper was closely related to the bonding effect. The viscosity of the central line adhesive was higher， the high porosity plug wrap paper had the better the bonding effect. However， different central line adhesives had different optimal opening time， beyond which the problem of poor bonding would occur.