Preparation and characterization of SEBS-g-MAH-filled flexible polyurethane foam composites with gradient-changing structure

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Title:	Preparation and characterization of SEBS-g-MAH-filled flexible polyurethane foam composites with gradient-changing structure
Authors:	Li, Ting-Tin;Li, Ting-Ting;Dai, Wenna;Dai, Wenna;Huang, Shih-;Huang, Shih-Yu;Wang, Hongya;Wang, Hongyang;Lin, Qi;Lin, Qi;樓靜文;Lou, Ching-Wen;林佳弘;Lin, Jia-Horng
Contributors:	生物資訊與醫學工程學系
Keywords:	Flexible foam;Two-step foaming;SEBS-g-MAH;Gradient structure;Dynamic cushion
Date:	2019-12
Issue Date:	2020-09-04 15:15:43 (UTC+8)
Publisher:	亞洲大學
Abstract:	This study constructs a flexible gradient foaming structure by changes the maleic anhydride-grafted styrene-ethylene/butylene-styrene (SEBS-g-MAH) content on the basis of a two-step foaming technique. The effects of SEBS-g-MAH content and its ratio in the first and second foaming steps on microstructure, compression, quasi-static burst, dynamic cushion, and thermal performance of flexible polyurethane foam composites are investigated. Results show that, SEBS-g-MAH content affects microstructure, compressive stress, burst strength, dynamic cushion and thermal performance. Gradient foaming improves compressive stress and quasi-static bursting strength by 3.81 and 1.56 times, respectively. The absorbed energy under dynamic impact of gradient foaming can be increased by 87% relative to that in one-step foaming. This study provides a new way approach to SEBS application, and serves as a new reference for designing of energy-absorbing foam composites by filler addition.
Relation:	MATERIALS & DESIGN
Appears in Collections:	[生物資訊與醫學工程學系 ] 期刊論文

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