Hyperbranched polyester can significantly improve the many performance of PET processing.

Hyperbranched polyester can significantly improve the many performance of PET processing.
(1) hyperbranched polymer has greater impact on rheological performance of PET, when HBPE-OH addition level is 0.5%, the torsion decreases by 60%, in 10% of the added amount can decrease by 77%; (2) HBPE/PET mixing system has good thermal stability to meet the general using conditions and under the high temperature processing, PET will not degrade though with hydroxyl terminal groups; (3) Through SEM, it proves that HBPE-OH can bring brittle-ductile transition to PET material. From "Research on PET blending modification by hyperbranched polyester " Ji Lianqin, Beijing Institute of Technology 2010 Master Thesis. Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers.

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