Simple test method for determination of contribution level of crosslink density by crystalline structure of poly(ethylene-co-vinyl acetate) compound

2019 ◽  
Vol 77 ◽  
pp. 105928 ◽  
Author(s):  
Sung-Seen Choi ◽  
Yu Yeon Chung
Keyword(s):  
Vinyl Acetate ◽  
Crystalline Structure ◽  
Crosslink Density ◽  
Test Method ◽  
Simple Test ◽  
Poly Ethylene ◽  
Contribution Level

Contribution to the determination of relative increment of internal energy at low deformation of cross-linked rubber

1980 ◽  
Vol 45 (8) ◽  
pp. 2315-2318 ◽  
Author(s):  
Vladimír Pollák ◽  
Andrej Romanov
Keyword(s):  
Internal Energy ◽  
Vinyl Acetate ◽  
Temperature Changes ◽  
Relative Increment ◽  
Poly Ethylene ◽  
Small Deformations

The relative charge of the internal energy, fU/f, during deformation of cross-linked elastomers, poly(ethylene-co-propylene) and poly(ethylene-co-vinyl acetate), was determined at various temperatures. Anomalies in the dependence of fU/f on relative dilatation in the region of small deformations ( 35%) are to a large extent besides other factors due to the sensibility of the formula used to calculate fU/f to temperature changes.

Online determination of chemical and physical properties of poly(ethylene vinyl acetate) pellets using a novel method of near-infrared spectroscopy combined with angle transformation

2019 ◽  
Vol 11 (18) ◽  
pp. 2435-2442 ◽  
Author(s):  
Jinchun Xie ◽  
Hongfu Yuan ◽  
Chunfeng Song ◽  
Xiangjun Yan ◽  
Hao Yan ◽  
...  
Keyword(s):  
Quality Control ◽  
Infrared Spectroscopy ◽  
Vinyl Acetate ◽  
Near Infrared ◽  
Ethylene Vinyl Acetate ◽  
Melt Flow Rate ◽  
Production Processes ◽  
Novel Method ◽  
Poly Ethylene

Melt flow rate (MFR) and vinyl acetate content (VAC) are the target parameters for quality control of poly(ethylene vinyl acetate) (EVA) pellets in production processes.

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