THERMOPLASTIC STARCH COMPOSITION, METHOD FOR PREPARING SAME, AND USES THEREOF
An example of the present invention provides a thermoplastic starch composition comprising starch, a plasticizer, a compatibilizer, a biodegradable polymer, and a reaction initiator. The thermoplastic starch composition according to the present invention exists in a state in which starch and a biode...
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Zusammenfassung: | An example of the present invention provides a thermoplastic starch composition comprising starch, a plasticizer, a compatibilizer, a biodegradable polymer, and a reaction initiator. The thermoplastic starch composition according to 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. A biodegradable film can be produced when the biodegradable composition in which the thermoplastic starch composition and the biodegradable polymer are uniformly mixed is extruded, and the produced biodegradable film has excellent mechanical strength and low hygroscopicity. Accordingly, the biodegradable film produced by using the thermoplastic starch composition according to the present invention as a basic raw material may be used in various fields such as disposable bags, disposable packaging materials, mulching films, etc.
Un exemple de la présente invention concerne une composition d'amidon thermoplastique comprenant de l'amidon, un plastifiant, un agent de compatibilisation, un polymère biodégradable et un amorceur de réaction. La composition d'amidon thermoplastique selon la présente invention existe dans un état dans lequel l'amidon et un polymère biodégradable sont chimiquement liés par une réaction de greffage médiée par un agent de compatibilisation. Un film biodégradable peut être produit lorsqu'on soumet à une extrusion la composition biodégradable dans laquelle la composition d'amidon thermoplastique et le polymère biodégradable sont uniformément mélangés, et le film biodégradable produit présente une excellente résistance mécanique et une faible hygroscopicité. En conséquence, le film biodégradable produit à l'aide de la composition d'amidon thermoplastique selon la présente invention servant de matière première de base peut être produit dans différents domaines tels que les sachets jetables, les matériaux d'emballage jetables, les films de paillage, etc.
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. |
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