Processability and thermal properties of blends of high density polyethylene, poly (ethylene terephthalate), and ethyl vinyl acetate compatibilizer | Zendy

Chen C. | Zendy; Lai F. S. | Zendy

Premium

Processability and thermal properties of blends of high density polyethylene, poly (ethylene terephthalate), and ethyl vinyl acetate compatibilizer

Author(s) -

Chen C.,

Lai F. S.

Publication year - 1994

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.760340603

Subject(s) - materials science , high density polyethylene , ethylene vinyl acetate , thermogravimetric analysis , polyethylene , endotherm , composite material , ethylene , polyethylene terephthalate , vinyl acetate , thermal stability , linear low density polyethylene , copolymer , glass transition , polymer chemistry , differential scanning calorimetry , chemical engineering , polymer , organic chemistry , catalysis , physics , chemistry , engineering , thermodynamics

Because of differences in chemical structure and rheological characteristics, high density polyethylene (HDPE) and poly(ethylene terephthalate) (PET) are incompatible when blended during recycling of PET soft drink bottles. To improve the properties of the blends, ethylene vinyl acetate copolymer (EVA) was used as a compatibilizer. Based on torque rheometer tests, the higher the concentration of PET in the blends, the higher the initial loading torque. Blends of 50% HDPE and 50% PET had the lowest equilibrium torque. Equilibrium torque was highest at 5% EVA. The presence of EVA made only a slight difference in the glass transition temperatures of HDPE/PET blends. Higher EVA content in the blend resulted in a lower melting endotherm. Thermogravimetric analysis showed that thermal stability was independent of EVA content; but the more PET in the blend, the lower the final weight loss.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research