A double-decker silsesquioxane of norbornene and performance of crosslinking reactive modified EPDM ablation resistance composites

Xutao Ma; Tiezheng Ji; Junan Zhang; Shuai Shen; Shumeng Wang; Jian Wang; Xiao Hou; Shishan Yang; Xiaoyan Ma

doi:10.1016/j.compositesa.2022.107370

A double-decker silsesquioxane of norbornene and performance of crosslinking reactive modified EPDM ablation resistance composites

Xutao Ma, Tiezheng Ji, Junan Zhang, Shuai Shen, Shumeng Wang, Jian Wang, Xiao Hou, Shishan Yang, Xiaoyan Ma

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

30 Scopus citations

Abstract

To improve the ablation resistance of ethylene propylene ethylidene norbornene monomer (EPDM) insulation layer, a lightweight novel structure of Double-Decker Silsesquioxane bonded norbornene unit structures (DN-DDSQ) was designed and synthesized for chemically cross-linked with EPDM or cross-linking agent to obtain high performance EPDM ablation resistance composites (DN-DDSQ modified EPDM and DN-DDSQ modified aramid fibers (AF)-reinforced EPDM). The resultant formation of denser cross-linked network and better dispersion of high-temperature resistant cage structure of DDSQ in the EPDM ablation resistance composites can improve its mechanical and ablation performance. Reduction in linear ablation rate of 5 phr DN-DDSQ modified EPDM and AF-reinforced EPDM by 17.15% and 62.40% respectively. Furthermore, the ablation mechanism of DN-DDSQ modified AF-reinforced EPDM was established by the thermochemical transformation and the analysis of the ablated carbon layer. This work will provide new ideas and methods for future reveal the ablation pattern in the ablation process.

Original language	English
Article number	107370
Journal	Composites Part A: Applied Science and Manufacturing
Volume	165
DOIs	https://doi.org/10.1016/j.compositesa.2022.107370
State	Published - Feb 2023

Keywords

A. Nanocomposites
A. Nanoparticles
B. High-temperature properties
B. Mechanical properties
D. Thermal analysis

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10.1016/j.compositesa.2022.107370

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title = "A double-decker silsesquioxane of norbornene and performance of crosslinking reactive modified EPDM ablation resistance composites",

abstract = "To improve the ablation resistance of ethylene propylene ethylidene norbornene monomer (EPDM) insulation layer, a lightweight novel structure of Double-Decker Silsesquioxane bonded norbornene unit structures (DN-DDSQ) was designed and synthesized for chemically cross-linked with EPDM or cross-linking agent to obtain high performance EPDM ablation resistance composites (DN-DDSQ modified EPDM and DN-DDSQ modified aramid fibers (AF)-reinforced EPDM). The resultant formation of denser cross-linked network and better dispersion of high-temperature resistant cage structure of DDSQ in the EPDM ablation resistance composites can improve its mechanical and ablation performance. Reduction in linear ablation rate of 5 phr DN-DDSQ modified EPDM and AF-reinforced EPDM by 17.15% and 62.40% respectively. Furthermore, the ablation mechanism of DN-DDSQ modified AF-reinforced EPDM was established by the thermochemical transformation and the analysis of the ablated carbon layer. This work will provide new ideas and methods for future reveal the ablation pattern in the ablation process.",

keywords = "A. Nanocomposites, A. Nanoparticles, B. High-temperature properties, B. Mechanical properties, D. Thermal analysis",

author = "Xutao Ma and Tiezheng Ji and Junan Zhang and Shuai Shen and Shumeng Wang and Jian Wang and Xiao Hou and Shishan Yang and Xiaoyan Ma",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2023",

month = feb,

doi = "10.1016/j.compositesa.2022.107370",

language = "英语",

volume = "165",

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T1 - A double-decker silsesquioxane of norbornene and performance of crosslinking reactive modified EPDM ablation resistance composites

AU - Ma, Xutao

AU - Ji, Tiezheng

AU - Zhang, Junan

AU - Shen, Shuai

AU - Wang, Shumeng

AU - Wang, Jian

AU - Hou, Xiao

AU - Yang, Shishan

AU - Ma, Xiaoyan

PY - 2023/2

Y1 - 2023/2

N2 - To improve the ablation resistance of ethylene propylene ethylidene norbornene monomer (EPDM) insulation layer, a lightweight novel structure of Double-Decker Silsesquioxane bonded norbornene unit structures (DN-DDSQ) was designed and synthesized for chemically cross-linked with EPDM or cross-linking agent to obtain high performance EPDM ablation resistance composites (DN-DDSQ modified EPDM and DN-DDSQ modified aramid fibers (AF)-reinforced EPDM). The resultant formation of denser cross-linked network and better dispersion of high-temperature resistant cage structure of DDSQ in the EPDM ablation resistance composites can improve its mechanical and ablation performance. Reduction in linear ablation rate of 5 phr DN-DDSQ modified EPDM and AF-reinforced EPDM by 17.15% and 62.40% respectively. Furthermore, the ablation mechanism of DN-DDSQ modified AF-reinforced EPDM was established by the thermochemical transformation and the analysis of the ablated carbon layer. This work will provide new ideas and methods for future reveal the ablation pattern in the ablation process.

AB - To improve the ablation resistance of ethylene propylene ethylidene norbornene monomer (EPDM) insulation layer, a lightweight novel structure of Double-Decker Silsesquioxane bonded norbornene unit structures (DN-DDSQ) was designed and synthesized for chemically cross-linked with EPDM or cross-linking agent to obtain high performance EPDM ablation resistance composites (DN-DDSQ modified EPDM and DN-DDSQ modified aramid fibers (AF)-reinforced EPDM). The resultant formation of denser cross-linked network and better dispersion of high-temperature resistant cage structure of DDSQ in the EPDM ablation resistance composites can improve its mechanical and ablation performance. Reduction in linear ablation rate of 5 phr DN-DDSQ modified EPDM and AF-reinforced EPDM by 17.15% and 62.40% respectively. Furthermore, the ablation mechanism of DN-DDSQ modified AF-reinforced EPDM was established by the thermochemical transformation and the analysis of the ablated carbon layer. This work will provide new ideas and methods for future reveal the ablation pattern in the ablation process.

KW - A. Nanocomposites

KW - A. Nanoparticles

KW - B. High-temperature properties

KW - B. Mechanical properties

KW - D. Thermal analysis

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DO - 10.1016/j.compositesa.2022.107370

M3 - 文章

AN - SCOPUS:85145265341

SN - 1359-835X

VL - 165

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

M1 - 107370

ER -

A double-decker silsesquioxane of norbornene and performance of crosslinking reactive modified EPDM ablation resistance composites

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