Thermoplastic starch composition manufacturing method thereof and use thereof
According to an embodiment of the present invention, a thermoplastic starch composition including starch, a plasticizer, a first compatibilizer, a second compatibilizer, a biodegradable polymer, and a reaction initiator is provided. At least a portion of the starch and biodegradable polymer, which a...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | According to an embodiment of the present invention, a thermoplastic starch composition including starch, a plasticizer, a first compatibilizer, a second compatibilizer, a biodegradable polymer, and a reaction initiator is provided. At least a portion of the starch and biodegradable polymer, which are components of the thermoplastic starch composition according to the present invention, exist in a chemically bonded state through a graft reaction mediated by the first compatibilizer. In addition, at least a portion of the starch, which is a component of the thermoplastic starch composition according to the present invention, exists in a form chemically bonded to the second compatibilizer and having a hydrophobic functional group introduced. Accordingly, a biodegradable film can be produced by extruding a biodegradable composition in which the thermoplastic starch composition and a biodegradable polymer are uniformly mixed, and the produced biodegradable film has excellent mechanical properties.
본 발명의 일 예는 전분, 가소제, 제1상용화제, 제2상용화제, 생분해성 고분자 및 반응 개시제를 포함하는 열가소성 전분 조성물을 제공한다. 본 발명에 따른 열가소성 전분 조성물의 구성성분인 전분 및 생분해성 고분자는 적어도 일부가 제1상용화제를 매개로 한 그래프트 반응에 의해 화학적으로 결합된 상태로 존재한다. 본 발명에 따른 열가소성 전분 조성물의 구성성분인 전분은 적어도 일부가 제2상용화제와 화학적으로 결합하여 소수성 관능기가 도입된 형태로 존재한다. 상기 열가소성 전분 조성물과 생분해성 고분자가 균일하게 혼합된 생분해성 조성물을 압출하면 생분해성 필름의 제조가 가능하고, 제조된 생분해성 필름은 우수한 기계적 물성을 가진다. |
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