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Summary & Details

Analysis of the Relationship Between Solvent Diffusion Behavior and Polymer Chain Relaxation in the Chemical Resistance of Automotive Interior Decorative Films

車載内装加飾フィルムの耐薬品性における溶媒拡散挙動と分子鎖緩和の関係解析

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Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20266157

Paper/Info type: Proceedings (Autumn)

No.124-26

Pages: 1-2(Total 2 p)

Date of publication: Oct 2026

Publisher: JSAE

Language: Japanese

Event: 2026 JSAE Annual Congress (Autumn)

Detailed Information

Author(J)	1) 渋谷滝人
Author(E)	1) Takito Shibuya
Affiliation(J)	1) 本田技術研究所
Affiliation(E)	1) Honda R&D
Abstract(J)	車載内装加飾フィルムにおける白化不具合の一因として，柑橘系芳香剤成分リモネンの侵入によるボイド形成がある．本研究では吸収解析と動的粘弾性測定により，アクリル種の違いが分子鎖緩和を介して拡散挙動を変化させ，ボイド形成を伴う白化挙動に影響することを明らかにし，耐薬品性に優れたアクリル層設計指針を示した． Translation
Abstract(E)	In this study, white discoloration in automotive interior decorative films was found to be partly caused by void formation induced by the ingress of limonene, a principal component of citrus-based fragrances. Uptake analysis and dynamic mechanical measurements revealed that variations in acrylic composition alter diffusion behavior through differences in chain relaxation characteristics. These differences were shown to influence whitening associated with void formation. Based on these findings, design guidelines for acrylic layers with enhanced chemical resistance are proposed.

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