Improved thermal properties of epoxy resin modified with polymethyl methacrylate-microencapsulated phosphorus-nitrogen-containing flame retardant.

Lijie Qu, Chunling Zhang, Peihong Li, Xueyan Dai, Tianlu Xu, Yanlong Sui, Jinjia Gu, Yanli Dou

Abstract read

In one paragraph

Article in RSC advances, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it

0cells of the map it votes in

4citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

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3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Lijie QuKey Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130025 P. R. China clzhang@jlu.edu.cn douyl@jlu.edu.cn.ORCID https://orcid.org/0000-0001-7337-8520

Chunling ZhangKey Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130025 P. R. China clzhang@jlu.edu.cn douyl@jlu.edu.cn.ORCID https://orcid.org/0000-0002-8981-3184

Peihong LiKey Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130025 P. R. China clzhang@jlu.edu.cn douyl@jlu.edu.cn.ORCID https://orcid.org/0000-0002-4752-0981

Xueyan DaiKey Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130025 P. R. China clzhang@jlu.edu.cn douyl@jlu.edu.cn.ORCID https://orcid.org/0000-0001-7363-8126

Tianlu XuKey Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130025 P. R. China clzhang@jlu.edu.cn douyl@jlu.edu.cn.ORCID https://orcid.org/0000-0002-8972-3867

Yanlong SuiKey Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130025 P. R. China clzhang@jlu.edu.cn douyl@jlu.edu.cn.

Jinjia GuJiangsu Oseaguard Building Materials & Technology Development Co., Ltd Nanjing 210000 P. R. China.

Yanli DouKey Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130025 P. R. China clzhang@jlu.edu.cn douyl@jlu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epoxy resin (EP) composites with improved thermal resistance were fabricated. To solve the problem of low thermal resistance derived from phosphazene flame-retardant additives, we designed a system based on flame-retardant microcapsules P(H), with hexaphenoxycyclotriphosphazene as the core and polymethyl methacrylate as the shell. The core-shell structure was characterized and confirmed. The thermal resistance of the cured EP composites containing 1 wt% P(H) microcapsules was improved because of the increased glass transition temperatures. The P(2.75H)/EP composites can reach a limited oxygen index of 30.5% and V-1 rating in UL-94 tests. Heat and gas release rates were reduced during combustion tests. Residual images implied that the P(H) microcapsules may promote the formation of a flame-retardant char layer. Pyrolysis analysis demonstrated that the P(H) microcapsules can decompose in two procedures to produce flame-retardant gas components. Therefore, the flame-retardant mechanism involved the flame inhibition effect in the gas phase, and the charring effect in the condensed phase.

Identifiers

PMID35547319

DOI10.1039/c8ra05911j

PMCPMC9085426

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LicenceCC BY-NC

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.