Thermoplastic starch composition manufacturing method thereof and use thereof

According to an embodiment of the present invention, provided is a thermoplastic starch composition which comprises starch, a plasticizer, a compatibilizer, a biodegradable polymer, and a reaction initiator. The thermoplastic starch composition of the present invention exists in a state in which sta...

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Bibliographic Details
Main Authors HAM CHOONG HYUN, KIM HAK JUN, HUR SUNG HWA
Format Patent
LanguageEnglish
Korean
Published 23.08.2022
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Summary:According to an embodiment of the present invention, provided is a thermoplastic starch composition which comprises starch, a plasticizer, a compatibilizer, a biodegradable polymer, and a reaction initiator. The thermoplastic starch composition of the present invention exists in a state in which starch and a biodegradable polymer are chemically bonded by a graft reaction mediated by a compatibilizer. In addition, by extruding a biodegradable composition in which the thermoplastic starch composition and the biodegradable polymer are uniformly mixed, a biodegradable film can be prepared. The prepared biodegradable film has excellent mechanical strength and low hygroscopic properties. Accordingly, the biodegradable film prepared using the thermoplastic starch composition according to the present invention as a basic raw material can be used in various fields such as a disposable bag, a disposable packaging material, and a mulching film. 본 발명의 일 예는 전분, 가소제, 상용화제, 생분해성 고분자 및 반응 개시제를 포함하는 열가소성 전분 조성물을 제공한다. 본 발명에 따른 열가소성 전분 조성물은 전분 및 생분해성 고분자가 상용화제를 매개로 한 그래프트 반응에 의해 화학적으로 결합된 상태로 존재한다. 상기 열가소성 전분 조성물과 생분해성 고분자가 균일하게 혼합된 생분해성 조성물을 압출하면 생분해성 필름의 제조가 가능하고, 제조된 생분해성 필름은 우수한 기계적 강도 및 낮은 흡습성을 가진다. 따라서, 본 발명에 따른 열가소성 전분 조성물을 기초 원료로 하여 제조된 생분해성 필름은 일회용 백, 일회용 포장재, 멀칭 필름 등 다양한 분야에 이용될 수 있다.
Bibliography:Application Number: KR20210019813