Cigarette filter rod used in the development of new plasticizer

Typically, cigarette filter rod filter media are generally used Acetate, in their process, the adhesive must be added to the amount of plasticizer, the bulky, soft fiber surface by adhesive bonding effect dissolution of the plasticizer, formed to have an appropriate hardness round filter rod. This ensures that the cigarette filter rod connection processing and pumping process is not distorted, wrinkled, deformation, so that the filter rod right ingredients harmful flue gas adsorption better retention effect. Today, for cigarette filter rod forming filter media --- Acetate adhesive plasticizer, typically triacetin. However, due to glycerol in other industries' consumption is large, resulting in the cigarette industry's need for glycerol are often in short supply, even be able to buy, the price is higher. PVC plasticizer
In addition, the secondary hydroxyl group of glycerol esterified difficult, and it is a single ester, diethyl ester is very hygroscopic, which reduces the adhesion of its plasticizing effect. To avoid this situation would have extended reaction period, which also reduces the production efficiency of the adhesive plasticizer, limiting its production [1]. Therefore, it is urgently needed in the cigarette industry has developed an alternative to a new type of adhesive triacetin plasticizer. Reported in the literature, diethylene glycol acetate can be used as a substitute, when using concentrated H2SO4 as catalyst to synthesize it, the yield up to 85% -90% [1]. However, considering the use of sulfuric acid as a catalyst will cause serious waste pollution and serious corrosion of equipment, post-processing to be repeated, washed, the production cycle is longer, need more than 6h per esterification reactor, higher production costs.
Therefore, we try to use the catalyst synthesis of zirconium sulfate, diethylene glycol acetate. Experimental results show that with 3% (of diethylene glycol and glacial acetic acid by weight of the total mass percentage) (hereinafter the same) of zirconium sulfate as a catalyst, with 30% of benzene as solvent, and the reaction time was 4h, inputs of diethylene glycol and glacial acetic acid molar ratio of 1:3, by azeotropic water separation process can be synthesized and reported in the literature have considerable yield and product quality diethylene glycol acetate, and zirconium sulfate as the catalyst can be reused. Impact modifier for PVC