Polyethylene containing antioxidant moieties exhibiting high thermal-oxidative stability for high temperature applications

Wei Zhu, Gang Zhang, Boping Liu, Tze-chiang Chung

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A new class of polyethylene-bonded antioxidants (PE-HP), containing several hindered phenol (HP) groups located along the polymer chain, has been prepared and investigated in this paper. The homogeneously distributed HP groups not only provide polymer stability but also form a completely polymer network under elevated temperatures. In a TGA comparative test, the PE-HP copolymer with 1.1 mol% HP concentration demonstrates no weight loss after heating at 190 °C in air for 1000 min, while the commercial HDPE exhibits weight loss within 100 min. A standard ASTM oxygen induction time (OIT) test also shows heat flow to commercial HDPE after 15 min at 190 °C in air, while the PE-HP copolymer with 1.1 mol% HP groups shows a complete flat OIT line up to 230 min, without any detectable onset heat flow into the sample. This new PE-HP copolymer shall expand HDPE application to high temperatures (>150 °C).

Original languageEnglish (US)
Pages (from-to)101-108
Number of pages8
JournalPolymer
Volume146
DOIs
StatePublished - Jun 20 2018

Fingerprint

High temperature applications
Polyethylene
Phenol
Antioxidants
Phenols
Polyethylenes
High density polyethylenes
Polymers
Copolymers
Oxygen
Heat transfer
Hot Temperature
Air
Heating
Temperature

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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title = "Polyethylene containing antioxidant moieties exhibiting high thermal-oxidative stability for high temperature applications",
abstract = "A new class of polyethylene-bonded antioxidants (PE-HP), containing several hindered phenol (HP) groups located along the polymer chain, has been prepared and investigated in this paper. The homogeneously distributed HP groups not only provide polymer stability but also form a completely polymer network under elevated temperatures. In a TGA comparative test, the PE-HP copolymer with 1.1 mol{\%} HP concentration demonstrates no weight loss after heating at 190 °C in air for 1000 min, while the commercial HDPE exhibits weight loss within 100 min. A standard ASTM oxygen induction time (OIT) test also shows heat flow to commercial HDPE after 15 min at 190 °C in air, while the PE-HP copolymer with 1.1 mol{\%} HP groups shows a complete flat OIT line up to 230 min, without any detectable onset heat flow into the sample. This new PE-HP copolymer shall expand HDPE application to high temperatures (>150 °C).",
author = "Wei Zhu and Gang Zhang and Boping Liu and Tze-chiang Chung",
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Polyethylene containing antioxidant moieties exhibiting high thermal-oxidative stability for high temperature applications. / Zhu, Wei; Zhang, Gang; Liu, Boping; Chung, Tze-chiang.

In: Polymer, Vol. 146, 20.06.2018, p. 101-108.

Research output: Contribution to journalArticle

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