study on the compatibility and physical properties of chlorinated polyethylene rubber/nitrile rubber blends

The miscibility and some physicomechanical characteristics of chlorinated polyethylene rubber (CPE) and nitrile rubber (NBR) blends have been investigated. Calculation of the heat of mixing, differential scanning calorimetry, and scanning electron microscopy analysis showed that CPE was miscible wit...

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Bibliographic Details
Published in:Journal of applied polymer science 2011-04, Vol.120 (2), p.1180-1185
Main Authors: Zhang, Zhen Xiu, Chen, Chun Hua, Gao, Xin Wen, Kim, Jin Kuk, Xin, Zhen Xiang
Format: Article
Language:English
Subjects:
Abrasion resistance
Ageing
Applied sciences
blends
Breaking
chlorinated polyethylene
Chlorination
compatibility
Elongation
Exact sciences and technology
Materials science
Nitrile rubber
nitrile rubber (NBR)
oil resistance
Physical properties
Polyethylenes
Polymer blends
Polymer industry, paints, wood
Polymers
Properties and testing
Technology of polymers
Tensile strength
thermal aging
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Summary:The miscibility and some physicomechanical characteristics of chlorinated polyethylene rubber (CPE) and nitrile rubber (NBR) blends have been investigated. Calculation of the heat of mixing, differential scanning calorimetry, and scanning electron microscopy analysis showed that CPE was miscible with NBR in all proportions. The cure and scorch times decreased with the increase in NBR content, whereas the maximum torque increased. The tensile strength, 100% modulus, elongation at break, tear strength, and compression set decreased with increasing of NBR content. After aging, hardness and tensile strength increased, and there was no drastic change in elongation at break on aging. The thermal aging resistance and the abrasion resistance of NBR are improved after blending with CPE, but the oil resistance decreased.
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.33018