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调控膨胀型阻燃线性低密度聚乙烯/尼龙6共混物的微观结构以同时提高阻燃性、力学性能和耐水性

Regulating the Microstructure of Intumescent Flame-Retardant Linear Low-Density Polyethylene/Nylon Six Blends for Simultaneously Improving the Flame Retardancy, Mechanical Properties, and Water Resistance.

作者信息

Zhao Pan, Lu Chang, Gao Xi-Ping, Yao Da-Hu, Cao Cheng-Lin, Luo Yu-Jing

机构信息

Chemical Engineering & Pharmaceutics School, Henan University of Science and Technology, 263, Kaiyuan Avenue, Luoyang 471023, China.

出版信息

ACS Omega. 2018 Jun 27;3(6):6962-6970. doi: 10.1021/acsomega.8b00488. eCollection 2018 Jun 30.

DOI:10.1021/acsomega.8b00488
PMID:31458862
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6644446/
Abstract

A compatibilizer was melt-blended with intumescent flame-retardant linear low-density polyethylene/nylon six blends (LLDPE/PA6/IFR) by different methods, and the effect of microstructure on the flame retardancy, mechanical properties, and water resistance was investigated. Melt-blending compatibilizers with LLDPE/PA6/IFR above the polyamide-6 (PA6) melt temperature formed the microstructure with IFR dispersion in the LLDPE matrix and good interphase adhesion between the PA6 phase and the matrix. Compared with the blends with the lack of compatibilizers, although good interphase adhesion improved the mechanical properties and water resistance, IFR dispersion in the LLDPE matrix reduced the flame retardancy sharply. To obtain the microstructure with IFR dispersion in the PA6 phase and strong interface adhesion of the PA6 phase with a matrix, a novel method in which a compatibilizer was melt-blended with LLDPE/PA6/IFR between the melt temperatures of LLDPE and PA6 was employed. The results showed that the flame retardancy, mechanical properties, and water resistance were improved simultaneously.

摘要

采用不同方法将增容剂与膨胀型阻燃线性低密度聚乙烯/尼龙6共混物（LLDPE/PA6/IFR）进行熔融共混，并研究了微观结构对阻燃性、力学性能和耐水性的影响。在聚酰胺6（PA6）熔体温度以上将增容剂与LLDPE/PA6/IFR进行熔融共混，形成了IFR分散在LLDPE基体中且PA6相和基体之间具有良好相间附着力的微观结构。与缺乏增容剂的共混物相比，尽管良好的相间附着力改善了力学性能和耐水性，但IFR在LLDPE基体中的分散使阻燃性急剧降低。为了获得IFR分散在PA6相中且PA6相与基体具有强界面附着力的微观结构，采用了一种在LLDPE和PA6的熔体温度之间将增容剂与LLDPE/PA6/IFR进行熔融共混的新方法。结果表明，阻燃性、力学性能和耐水性同时得到了提高。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/7d48cc04504f/ao-2018-00488t_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/efa8f8df33bc/ao-2018-00488t_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/9d2df3a4e781/ao-2018-00488t_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/76d70597bd89/ao-2018-00488t_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/984f2dd9c839/ao-2018-00488t_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/352c38176d52/ao-2018-00488t_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/7d48cc04504f/ao-2018-00488t_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/efa8f8df33bc/ao-2018-00488t_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/9d2df3a4e781/ao-2018-00488t_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/76d70597bd89/ao-2018-00488t_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/984f2dd9c839/ao-2018-00488t_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/352c38176d52/ao-2018-00488t_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/987a/6644446/7d48cc04504f/ao-2018-00488t_0006.jpg

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本文引用的文献

1
Effect of cellulose acetate butyrate microencapsulated ammonium polyphosphate on the flame retardancy, mechanical, electrical, and thermal properties of intumescent flame-retardant ethylene-vinyl acetate copolymer/microencapsulated ammonium polyphosphate/polyamide-6 blends.醋酸丁酸纤维素微胶囊化聚磷酸铵对膨胀型阻燃乙烯-醋酸乙烯酯共聚物/微胶囊化聚磷酸铵/聚酰胺-6 共混物的阻燃性能、力学性能、电学性能和热性能的影响。
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Effects of reactive compatibilization on the morphological, thermal, mechanical, and rheological properties of intumescent flame-retardant polypropylene.反应性增容对膨胀型阻燃聚丙烯的形态、热性能、力学性能和流变性能的影响。
ACS Appl Mater Interfaces. 2009 Feb;1(2):452-9. doi: 10.1021/am8001204.