Abstract

Silicones are outstanding elastomers with e.g. great thermal properties and purity that make them important commercial materials. Current Research and Development aim at generating filler-free, non-cross-linked materials so that to bring to them transparency, reusability, and self-healing propensity. This mini review gives, first a short summary of conventional thermoplastic silicone elastomers genesis, and then some examples of current research in synthesis and processing of silicone-based physically cross-linked elastomers.

Abbreviations: DSC: differential scanning calorimetry; FLD: filament deposing technique; HMDI: 4,4′-methylene bis(cyclohexylisocyanate); HS: hard segment; IPDI: isophorone diisocyanate; NMR: nuclear magnetic resonance; PDMS: polydimethylsiloxane; PEO: polyethylene oxide; PEU: polyethyleneoxide-based copolymers; PPO: polypropylene oxide; PSU: PDMS-based urea copolymers; SEC: size exclusion chromatorgraphy; SS: soft segment; Tg: glass transition; TGA: thermal gravimetric analysis; THF: tetrahydrofuran; TPS: thermoplastic silicone elastomer; TMXDI: tetramethylxylene diisocyanate; TPU: thermoplastic urethane

摘要

有机硅是出色的弹性体，具有出色的热性能和纯度，使其成为重要的商业材料。当前的研究和开发旨在生产无填料、非交联材料，以便为它们带来透明度、可重复使用性和自愈倾向。这篇简短的评论首先简要概述了传统的热塑性有机硅弹性体的起源，然后是当前有机硅物理交联弹性体合成和加工方面的一些研究实例。

缩写： DSC：差示扫描量热法；FLD：细丝沉积技术；HMDI：4,4'-亚甲基双（异氰酸环己酯）；HS：硬段；IPDI：异佛尔酮二异氰酸酯；NMR：核磁共振；PDMS：聚二甲基硅氧烷；PEO：聚环氧乙烷；PEU：聚环氧乙烷基共聚物；PPO：聚环氧丙烷；PSU：基于PDMS的尿素共聚物；SEC：体积排阻色谱法；SS：软段；Tg：玻璃化转变；TGA：热重分析；THF：四氢呋喃；TPS：热塑性有机硅弹性体；TMXDI：四甲基二甲苯二异氰酸酯；TPU：热塑性聚氨酯