Aramid pulp treated with imidazolium ionic liquids as a filler in rigid polyurethane bio-foams

被引：19

作者：

Kerche, Eduardo Fischer ^{[1
]}

da Silva, Vinicius Demetrio ^{[1
,2
]}

Jankee, Gabriela da Silveira ^{[1
]}

Schrekker, Henri Stephan ^{[2
]}

Delucis, Rafael de Avila ^{[3
]}

Irulappasamy, Siva ^{[4
]}

Amico, Sandro Campos ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Engn Sch, Post Grad Program Min Met & Mat PPGE3M, Porto Alegre, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Inst Chem, Porto Alegre, RS, Brazil

[3] Univ Fed Pelotas, PPGCEM, Pelotas, RS, Brazil

[4] Kalasalingam Acad Res & Educ, Ctr Composite Mat, Anand Nagar, India

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2021年 / 138卷 / 21期

关键词：

composites; foams; ionic liquids; polyurethane; thermosets; THERMAL-DEGRADATION; TRIS(1-CHLORO-2-PROPYL)PHOSPHATE;

D O I：

10.1002/app.50492

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This article reports an aramid pulp (AP) treated with two ionic liquids (IL), namely 1-n-butyl-3-methylimidazolium chloride (C-4.Cl) and 1-carboxymethyl-3-methylimidazolium chloride (HO2C), and its use as a filler in reinforced rigid polyurethane foams (RPUF). The RPUF were incorporated with the treated AP at three weight fractions (c.a. 0.1, 0.5, and 1.0 wt%) and were produced by the free rising method. The results showed that the studied IL promoted a better interaction between the AP and the RPUF system, which increased the overall reactivity, imparting a higher cell anisotropy. This also yielded a positive effect in mechanical properties and thermal stability of the RPUF. Compared to the neat RPUF, outstanding increases of approximately 50 and 20% were achieved in compressive modulus and strength, respectively. In all, the use of IL promoted increased compatibility between matrix and reinforcement, especially that HO2C IL.

引用

页数：9

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