188宝金博页面版

T T T Titleitleitleitle: : : :Design,Design,Design,Design, SynthesisSynthesisSynthesisSynthesis andandandandApplicationApplicationApplicationApplication StudiesStudiesStudiesStudies ofof of ofPolyesterPolyesterPolyesterPolyester PlasticizerPlasticizerPlasticizerPlasticizerD D D Disciplineisciplineisciplineiscipline: : : : ChemicalChemicalChemicalChemicalTechnologyTechnologyTechnologyTechnologyA A A Authoruthoruthoruthor: : : :ZhangZhangZhangZhang ZhenZhenZhenZhen(Signature)(Signature)(Signature)(Signature) ___________ ___________ ___________ ___________S S S Supervisupervisupervisupervisor:or:or:or: LiLiLiLi KansheKansheKansheKanshe(Signature)(Signature)(Signature)(Signature) ___________ ___________ ___________ ___________ABSTRACTABSTRACTABSTRACTABSTRACTPolyvinyl chloride (PVC) industrialization was rapidly developed, scale, wide use, whichis connected with our daily life. However, the heat performance and processing stability ofPVC were lower, so it is need to add a variety of additives to improve the performance ofPVC. The production and consumption of the plasticizer for PVC processing aids is thebiggest in the world, which plays a very important role to improve the performance ofPVC.The most used polyester plasticizer is adjacent benzene two formic acid ester, where inthe adjacent benzene two formic acid two ester (DOP) are generally used. However, someevidence indicates that the DOP have toxic and carcinogenic factors. The poly (ethyleneadipate) (PEA) is permanent environmental plasticizers, which have lower volatility andmobility, high temperature resistance, and not easy to be water and solvent extraction, lowtoxicity.It has realistic significance to replace DOP.The poly (ethylene adipate) (PEA) were successfully synthesized by means ofpolyesterification reaction. The adipic acid and glycol was chosen as the starting materials.The gel permeation chromatography (GPC) was adopted to measure the molecular weight ofthe products. The boiling point and melting point were measured by the type B pipe.According to the GB testing standards for the acid value and hydroxyl value, the viscositywas investigated by the viscosity approach. The transference and mechanical properties werealso measured. Finally, the relationship between the molecular weight of PEA and PVCgrowth performance was studied and the best effect of the molecular weight of PEA weredesigned subsequently.Theoretical design ofcontrolling polymer molecular weight conditions are: Vacuum 86.3kPa, polymer average molecular weight 1000, vacuum of 99.7 kPa, polymer averagemolecular weight 3000.The research results show that microwave synthesis of PEA and the optimum reaction