Phosphate starch biodegradable film and preparation method thereof
The invention discloses a phosphate starch biodegradable film and a preparation method of the phosphate starch biodegradable film, and is characterized in that the phosphate starch biodegradable film contains starch, polyvinyl alcohol, glyoxal, urea, phosphoric acid and glycerol; and phosphate starc...
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Main Authors | , , , , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
31.07.2013
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a phosphate starch biodegradable film and a preparation method of the phosphate starch biodegradable film, and is characterized in that the phosphate starch biodegradable film contains starch, polyvinyl alcohol, glyoxal, urea, phosphoric acid and glycerol; and phosphate starch is a mixture of starch, glyoxal, phosphoric acid, urea and polyvinyl alcohol. The invention has the advantages as follows: starch is treated with an appropriate amount of modification cross-linking agent, so as to greatly improve the water resistance of plastics; pure starch has high brittleness,and an appropriate amount of plasticizer is adopted to enhance ductility of the film, which is more suitable for industrial mass production; the material is endowed with different mechanical properties by adjusting the contents of phosphoric acid and urea and the consumption of plasticizer, with high technological content and novelty; the preparation process adopts conventional plastic process equipment and method, has a |
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Bibliography: | Application Number: CN201110316355 |