Ionomer supramolecular network thermo-reversible crosslinked elastomer having high mechanical properties and low compression set and Producing method of dynamic crosslinked thermoplastic elastomer using the same

• Main Authors: KIM, JUNG SOO, BAE, JONG WOO, BAE SEONG GUK
• Format: Patent
• Language: English; Korean
• Published: 06.08.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention relates to an ionomer-based supramolecular thermoreversible crosslinked elastomer composition having an excellent permanent compression deformation rate and a method for preparing a dynamic crosslinked thermoplastic elastomer by using the same and, more specifically, to an ionomer-based supramolecular thermoreversible crosslinked elastomer composition having an excellent permanent compression deformation rate and a method for preparing a dynamic crosslinked thermoplastic elastomer by using the same, in which it is possible to realize a reuse and a low permanent compression deformation rate even repeated reuse by using metal salts such as chloride, nitrate, and hydroxide that can be ionized in an ethylene-propylene rubber compound grafted with carboxylic acid in combination to form an intermolecular ionic interaction, and it is also possible to obtain eco-friendly properties in terms of resource recycling in such a way that, when heat is applied to previously used rubber or synthetic resin, the rubber or synthetic resin is melted again and can be revulcanized, so as to enable continuous process and production through reuse with general thermoplastic plastic or rubber processing equipment such as extruders, injection machines, calenders, etc. 본 발명은 영구압축변형률이 우수한 아이오노머계 초분자 열가역성 가교형 탄성체 조성물 및 이를 이용한 동적가교형 열가소성 탄성체의 제조 방법에 관한 것으로, 보다 구체적으로는 카르복실산이 그라프트된 에틸렌-프로필렌 고무 화합물에 이온화가 가능한 클로라이드, 나이트레이트 및 하이드록사이드 등의 금속염들을 복합으로 사용하여 분자간 이온 결합(Ionic interaction)을 형성시킴으로써, 재사용이 가능할 뿐만 아니라 반복 재사용시에도 낮은 영구압축변형률을 구현할 수 있도록 하며, 또한, 기 사용하였던 고무 또는 합성수지에 열을 가할 경우 다시 용융되면서 재가황이 가능하여 압출기, 사출기, 카렌더 등과 같은 일반적인 열가소성 플라스틱 또는 고무 가공설비를 이용한 재사용으로 연속적인 가공 및 생산이 가능함에 따라 자원의 재활용이라는 차원에서 친환경적 특성을 갖도록 하는, 영구압축변형률이 우수한 아이오노머계 초분자 열가역성 가교형 탄성체 조성물 및 이를 이용한 동적가교형 열가소성 탄성체의 제조 방법에 관한 것이다.