PLA/PBAT biodegradable composite material and preparation method thereof

A composite material and biodegradable technology, which is applied in the field of PLA/PBAT biodegradable composite materials and its preparation, can solve problems such as poor compatibility, and achieve the effects of improved toughness, excellent tensile strength, and good chemical stability
CN103254597AInactive Publication Date: 2013-08-21LINONGFENG TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LINONGFENG TECH
Publication Date
2013-08-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a PLA / PBAT biodegradable composite material, which is prepared from the following components in percentage by weight: 60-75% of a polylactic acid, 60-75% of poly(adipic acid) / butylene terephthalate, 1-5% of poly (caprolactone), 5-15% of an ethylene-vinyl acetate copolymer, 1-5% of an ethylene-vinyl acetate copolymer and polylactic acid graft copolymer, and 1-10% of vegetable oil polyols. The PLA / PBAT biodegradable composite material disclosed by the invention is excellent in tensile strength and toughness, good in chemical stability, and easy to process, and in addition, the material is biodegradable. The invention also discloses a preparation method of the PLA / PBAT biodegradable composite material, which can be implemented through the existing equipment twin-screw extruder, therefore, the method is easy to implement, strong in maneuverability, and easy to realize industrialized mass production, and has good economic benefits and broad application prospects.
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Description

technical field

[0001] The invention relates to the field of plastic materials, in particular to a PLA / PBAT biodegradable composite material and a preparation method thereof. Background technique

[0002] The plastic industry has developed rapidly, and its use has penetrated into various fields of the national economy, and its use is very extensive. China produces about 5 million tons of waste plastics every year, most of which are polypropylene (PP), polyethylene (PE) and polystyrene (PS) materials, which cannot be decomposed naturally. Therefore, if the disposable plastic packaging waste made of PP material, PE material and PS material and its corresponding agricultural film and disposable tableware are randomly discarded, they will be piled up on the land due to their non-degradability, causing serious damage. White pollution, and this potential pollution will also intensify with the increase of people's usage and the accumulation of time. At present, my country's white p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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