Reusing Surlyn® Ionomer Scraps in LDPE Blends: Mechanical and Thermal Properties

被引：0

作者：

Barbosa, Matheus F. ^{[1
]}

deSouza, Adriana M. Catelli ^{[1
]}

机构：

[1] Ctr Univ FEI, Dept Engn Mat, Ave Humberto Alencar Castelo Branco 3972, BR-0985090 Sao Bernardo Do Campo, SP, Brazil

来源：

MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS | 2023年 / 26卷

关键词：

scraps reuse; ionomer; low densitypolyethylene; blends; mechanical properties; BARRIER PROPERTIES; COMPATIBILIZATION; POLYETHYLENE; BEHAVIOR; CLAY;

D O I：

10.1590/1980-5373-MR-2023-0019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study aimed to evaluate the possibility of reusing industrial scraps of Surlyn (R) ionomer by obtaining blends with Low-Density Polyethylene (LDPE). Blends of LDPE and Surlyn (R) scraps were obtained by extrusion with compositions ranging from 25 to 75 wt% of the ionomer. Their melt flow index (MFI), morphology (SEM), mechanical (tensile, flexural, impact tests) and thermal properties (DSC, TGA, HDT tests) were analyzed. The morphology of the blends presented two phases, indicating the immiscibility of phases. Surlyn (R) incorporation promoted a decrease in the degree of crystallinity of LDPE and a slight increase in the thermal decomposition temperature. In addition, Surlyn (R) decreased the decomposition rate of LDPE. However, the decrease in the degree of crystallinity did not affect the mechanical properties of the blends. Incorporating ionomer in LDPE promoted an increase in tensile and flexural strength, tensile and flexural modulus and strain at break. Impact strength decreased with increasing ionomer concentration.

引用

页数：7

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