Polylactic acid modified material, and preparation method and application thereof

• Main Author: ZOU JUN
• Format: Patent
• Language: Chinese; English
• Published: 16.11.2011
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; AGRICULTURE; ANIMAL HUSBANDRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FISHING; FORESTRY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HANDLING THIN OR FILAMENTARY MATERIAL; HORTICULTURE; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TRAPPING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WATERING

The invention provides a polylactic acid modified material, and a preparation method and application thereof. The polylactic acid modified material contains the components in parts by weight: 40 to 70 parts of polylactic acid (one of or a mixture or a copolymer of poly-L-lactic acid, poly-D-lactic acid and poly-DL-lactic acid), 10 to 20 parts of polyester thermoplastic polyurethane, 10 to 20 parts of plasticizer and 10 to 20 parts of organic or inorganic filler, wherein the plasticizer is one or a mixture of two of tributyl acetocitrate, epoxidized soybean oil, polypropylene glycol adipate and dioctyl maleate, and the organic or inorganic filler is one or more than one of starch, talcum powder, calcium carbonate, mica, montmorillonite, clay and titanium dioxide. According to the polylactic acid modified material provided by the invention, the flexibility of a polylactic acid material can be improved and the cost of a biodegradable material is reduced; and the prepared polylactic acid modified material has the