Method for preparing transparent toughening polylactic acid material

The invention discloses a method for preparing a transparent toughening polylactic acid material. The method is characterized by comprising the following steps: S1, performing co-hydrolytic condensation on dimethyldichlorosilance and alkyl phenyl dichlorosilane so as to obtain terminal hydroxyl poly...

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Hauptverfasser: ZHOU CHENGFENG, CAI ZENGKUN, YANG KE
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a method for preparing a transparent toughening polylactic acid material. The method is characterized by comprising the following steps: S1, performing co-hydrolytic condensation on dimethyldichlorosilance and alkyl phenyl dichlorosilane so as to obtain terminal hydroxyl polydimethyl alkyl phenyl silane with a polymerization degree of 8-14; S2, uniformly mixing a silane cross-linking agent with more than 3 alkoxy groups with the terminal hydroxyl polydimethyl alkyl phenyl silane, keeping the temperature of the mixture to minus 5 DEG C to 3 DEG C, and adding a catalyst and an emulsifier under the temperature condition so as to obtain an emulsion; S3, leaving the emulsion to stand for 22-30 hours at 20-30 DEG C to implement vulcanization, and performing demulsification, filtration, water washing and drying in sequence so as to obtain silicon rubber microspheres; and S4, uniformly stirring and mixing the silicon rubber microspheres with dried polylactic acid granules, performing uniform s