Effect of octene content on peroxide crosslinking of ethylene-octene copolymers

Petr Svoboda; Sameepa Poongavalappil; Rajesh Theravalappil; Dagmar Svobodova; Pavel Mokrejs

doi:10.1002/pi.4277

Effect of octene content on peroxide crosslinking of ethylene-octene copolymers

Petr Svoboda^*, Sameepa Poongavalappil, Rajesh Theravalappil, Dagmar Svobodova, Pavel Mokrejs

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Various ethylene-octene copolymers were crosslinked by dicumyl peroxide. Octene content was 16, 20, 30, 35 and 38 wt% and melt flow index was 1 or 3 g/10 min. The concentration of dicumyl peroxide was 0.3, 0.5 and 0.7 wt%. Crosslinking was analyzed by a rubber process analyzer in the temperature range 150-200 °C. Cross-linkability was evaluated from the real part modulus s'_max versus peroxide level plots as the slope of the line. With decreasing octene content and increasing melt flow index the crosslinkability increased. This was confirmed also by tan δ analysis. The network density was measured by the gel content. A higher gel content was found for melt flow index 3 and low octene content. The melting points T_m and the crystallinities were evaluated by DSC.

Original language	English
Pages (from-to)	184-189
Number of pages	6
Journal	Polymer International
Volume	62
Issue number	2
DOIs	https://doi.org/10.1002/pi.4277
State	Published - Feb 2013
Externally published	Yes

Keywords

Crosslinking
DSC
Ethylene-octene copolymer
Rubber process analyzer

ASJC Scopus subject areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

Access to Document

10.1002/pi.4277

Cite this

@article{3fa7c65132fb4bf68c41688b6c2b6e16,

title = "Effect of octene content on peroxide crosslinking of ethylene-octene copolymers",

abstract = "Various ethylene-octene copolymers were crosslinked by dicumyl peroxide. Octene content was 16, 20, 30, 35 and 38 wt\% and melt flow index was 1 or 3 g/10 min. The concentration of dicumyl peroxide was 0.3, 0.5 and 0.7 wt\%. Crosslinking was analyzed by a rubber process analyzer in the temperature range 150-200 °C. Cross-linkability was evaluated from the real part modulus s'max versus peroxide level plots as the slope of the line. With decreasing octene content and increasing melt flow index the crosslinkability increased. This was confirmed also by tan δ analysis. The network density was measured by the gel content. A higher gel content was found for melt flow index 3 and low octene content. The melting points Tm and the crystallinities were evaluated by DSC.",

keywords = "Crosslinking, DSC, Ethylene-octene copolymer, Rubber process analyzer",

author = "Petr Svoboda and Sameepa Poongavalappil and Rajesh Theravalappil and Dagmar Svobodova and Pavel Mokrejs",

year = "2013",

month = feb,

doi = "10.1002/pi.4277",

language = "English",

volume = "62",

pages = "184--189",

journal = "Polymer International",

issn = "0959-8103",

publisher = "John Wiley and Sons Ltd",

number = "2",

}

TY - JOUR

T1 - Effect of octene content on peroxide crosslinking of ethylene-octene copolymers

AU - Svoboda, Petr

AU - Poongavalappil, Sameepa

AU - Theravalappil, Rajesh

AU - Svobodova, Dagmar

AU - Mokrejs, Pavel

PY - 2013/2

Y1 - 2013/2

N2 - Various ethylene-octene copolymers were crosslinked by dicumyl peroxide. Octene content was 16, 20, 30, 35 and 38 wt% and melt flow index was 1 or 3 g/10 min. The concentration of dicumyl peroxide was 0.3, 0.5 and 0.7 wt%. Crosslinking was analyzed by a rubber process analyzer in the temperature range 150-200 °C. Cross-linkability was evaluated from the real part modulus s'max versus peroxide level plots as the slope of the line. With decreasing octene content and increasing melt flow index the crosslinkability increased. This was confirmed also by tan δ analysis. The network density was measured by the gel content. A higher gel content was found for melt flow index 3 and low octene content. The melting points Tm and the crystallinities were evaluated by DSC.

AB - Various ethylene-octene copolymers were crosslinked by dicumyl peroxide. Octene content was 16, 20, 30, 35 and 38 wt% and melt flow index was 1 or 3 g/10 min. The concentration of dicumyl peroxide was 0.3, 0.5 and 0.7 wt%. Crosslinking was analyzed by a rubber process analyzer in the temperature range 150-200 °C. Cross-linkability was evaluated from the real part modulus s'max versus peroxide level plots as the slope of the line. With decreasing octene content and increasing melt flow index the crosslinkability increased. This was confirmed also by tan δ analysis. The network density was measured by the gel content. A higher gel content was found for melt flow index 3 and low octene content. The melting points Tm and the crystallinities were evaluated by DSC.

KW - Crosslinking

KW - DSC

KW - Ethylene-octene copolymer

KW - Rubber process analyzer

UR - https://www.scopus.com/pages/publications/84872677154

U2 - 10.1002/pi.4277

DO - 10.1002/pi.4277

M3 - Article

AN - SCOPUS:84872677154

SN - 0959-8103

VL - 62

SP - 184

EP - 189

JO - Polymer International

JF - Polymer International

IS - 2

ER -

Effect of octene content on peroxide crosslinking of ethylene-octene copolymers

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this