Work

Foam Injection Molding of Poly(Lactic Acid) with Azodicarbonamide-Based Chemical Blowing Agent

Year: 2024

Type: conference-paper

Abstract: In this study, poly(lactic acid) (PLA)-based biopolymer foams were prepared through injection molding using the high-pressure foam injection molding method, also referred to as “breathing mold” technique, with the addition of various amounts (0, 1, 2, and 4 wt.%) of azodicarbonamide-based chemical blowing agent (CBA). The prepared samples were analyzed for their macrostructure using computed tomography (CT) while the mechanical properties were determined by flexural and Charpy impact tests. CT analysis revealed a finer foam cell structure and decreasing shell thickness with increasing CBA content. Regarding the mechanical properties, the specific flexural strength and flexural modulus of PLA were improved as a result of foaming; however, this improvement came at the cost of a slight deterioration in impact strength.

DOI: 10.3390/engproc2024079044

Authors: László Lendvai, Gábor Dogossy, Sándor Kálmán Jakab, Imre Fekete

Institution: Széchenyi István University

Language: English

Topic: Polymer Foaming and Composites

Subfield: Polymers and Plastics

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Funder: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal

OpenAlex ID: W4404147124

FWCI: 2.799

Cites: 11

Cited by: 2

Related to: 10