Contribution of polyalkyl(meth)acrylates to the design of PVC melt viscosity | Zendy

Vankan R. | Zendy; Fayt R. | Zendy; Jérôme R. | Zendy; Teyssié Ph. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Contribution of polyalkyl(meth)acrylates to the design of PVC melt viscosity

Author(s) -

Vankan R.,

Fayt R.,

Jérôme R.,

Teyssié Ph.

Publication year - 1996

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.10564

Subject(s) - materials science , viscosity , meth , reduced viscosity , composite material , relative viscosity , logarithm , alkyl , shear (geology) , polymer chemistry , thermodynamics , organic chemistry , chemistry , polymer , acrylate , mathematics , copolymer , mathematical analysis , physics

The shear viscosity of poly(vinylchloride) (PVC) at 200°C can be decreased by at least one order of magnitude by the addition of as little as 5 wt% poly n ‐alkyl‐(meth)acrylates (PMA) of a much lower dynamic viscosity than PVC. For this effect to be observed, the polymeric additive must be immiscible with PVC at 200°C. The average size of the dispersed phases is observed in the range of 0.5 to 5 μm; size fluctuation in this domain has no significant effect. When these conditions are met, there is a linear increase in the shear viscosity ratio η blend /η PVC from 0.2 to 1.0 with increasing logarithmic values of the dynamic viscosity ratio of the additive over PVC [(log(η P(M)A * /η pvc * )) from −4 to −1].

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research