Evidence map›Paper›PMID 38165505›Full record

ArticleJournal of molecular modeling2024

Molecular dynamics simulation and performance analysis of polyimide/aramid blends.

Chang Ma, Zhongyu Li, Xiongying Duan, Bairu Cheng, Hangwei Cao, Minfu Liao

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Article in Journal of molecular modeling, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
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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

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3 citing papers in PubMed.

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4 · The record

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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

6 authors.

Chang MaSchool of Electrical Engineering, Dalian University of Technology, Dalian, China.
Zhongyu LiSchool of Electrical Engineering, Dalian University of Technology, Dalian, China.
Xiongying DuanSchool of Electrical Engineering, Dalian University of Technology, Dalian, China. xyduan@dlut.edu.cn.
Bairu ChengSchool of Electrical Engineering, Dalian University of Technology, Dalian, China.
Hangwei CaoSchool of Electrical Engineering, Dalian University of Technology, Dalian, China.
Minfu LiaoSchool of Electrical Engineering, Dalian University of Technology, Dalian, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextPolyimide (PI) and aramid, as functional polymer materials, have significant application prospects in special fields such as fire prevention and arc resistance. Blends of materials can not only improve the physical and chemical properties of a single material, but also save costs, so in order to improve the performance of polyimide, it is of great practical importance to study the properties of PI and aramid blends. Molecular dynamics simulation results showed that the two materials are compatible. The solubility parameters of PI tend to stabilize when the polymerization degree exceeded 10; aramid-1313 and aramid-1414 tend to stabilize at polymerization degrees of 10 and 15 or more, respectively. On this basis, the binding energy, diffusion coefficient, and mechanical properties of PI/aramid-1313 and PI/aramid-1414 blends with different mass ratios were analyzed. It was found that with the continuous increase of aramid content, the binding energy of the blends continue to improve, limiting the gas molecules diffusion ability. The mechanical properties of the materials also continue to improve. The simulation results provided in this paper can provide theoretical guidance for experiments on PI blends and shorten the research time and cost.

methodsTo investigate the properties of PI and aramid blends, the PI/aramid composite system models were constructed using the Amorphous Cell module in Materials Studio software. Subsequently, molecular dynamics simulations of the PI/aramid composite system were performed using the Forcite module, while the interactions between atoms and molecules were described using the COMPASS II force field.

Indexed as

Binding energyblendDiffusion coefficientMechanical propertiesMolecular dynamicsPolyimide

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