聚乙烯醇缩丁醛发泡材料的制备及性能影响因素

Preparation and performance influencing factors of polyvinyl butyral foaming materials

以硬脂酸锌（ZnSt）改性的偶氮二甲酰胺/NaHCO3（AC-SA）复合型发泡剂、聚乙烯醇缩丁醛（PVB）膜片边角料为主要原料,采用熔融共混及模压发泡法制备PVB发泡材料,采取6因素、5水平的正交试验方案L25（5^6）,重点考察AC-SA、过氧化二异丙苯（DCP）、邻苯二甲酸二辛酯（DOP）、纳米SiO2、丁腈橡胶（NBR）及滑石粉的用量对PVB发泡材料性能的影响。

Using zinc stearate （ZnSt） modified azodicarbonamide/NaHCO3 （AC-SA） composite blowing agent, polyvinyl butyral （PVB） film scrap as main raw materials, the PVB foaming materials were prepared by melting blending method and molding foaming method. Using the 6 factors, 5 levels orthogonal experimental program L25（5^6）, the influence ofAC-SA, dicumene peroxide （DCP）, dioctyl phthalate （DOP）, nanoSiO2, nitrile rubber （NBR） and talc powder amounts on performance of PVB foaming materials was emphatically investigated.