Biodegradable resin composition having improved mechanical properties, moldability, and weather resistance, and preparation method therefor

A resin composition and biodegradability technology, applied in the field of mechanical properties obtained from moldability and weather resistance, can solve the problem of long reaction time, unfavorable production costs, and difficulty in obtaining high molecular weight aliphatic/aromatic copolyester resins and other problems, to achieve the effect of improving formability and durability, excellent productivity and economy, and shortening the reaction rate of polycondensation.
CN113993926APending Publication Date: 2022-01-28TLC KOREA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TLC KOREA CO LTD
Publication Date
2022-01-28

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Abstract

The present invention relates to a biodegradable resin composition having improved mechanical properties and moldability and a preparation method therefor and, more specifically, to a biodegradable resin composition and a preparation method therefor, wherein the biodegradable resin composition is obtained by mixing an acid component, containing an aliphatic dicarboxylic acid or a mixture component of an aliphatic dicarboxylic acid and an aromatic dicarboxylic acid, with an aliphatic diol in the presence of a multi-functional compound and sequentially carrying out an esterification reaction, a transesterification reaction, a polycondensation reaction, a chain extension reaction, and a solid-state polymerization reaction, and the biodegradable resin composition has excellent productivity and economic efficiency through an improved reaction rate, retains superb tensile strength, elongation rate, and processability, and is environmentally friendly through the biodegradation thereof in nature when buried.
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Description

technical field

[0001] The present invention relates to the sequential esterification reaction and transesterification reaction of an aliphatic dicarboxylic acid or an acid component comprising a mixture of aliphatic dicarboxylic acid and aromatic dicarboxylic acid and aliphatic diol in the presence of a polyfunctional compound A biodegradable resin composition with improved mechanical properties, moldability and weather resistance obtained from polycondensation reaction, chain extension reaction and solid phase polymerization reaction and a preparation method thereof. Background technique

[0002] Social issues related to environmental pollution are becoming prominent around the world. For various plastics used in existing industrial fields, in most cases, they are used as non-degradable raw materials that are difficult to degrade naturally, and then disposed of by landfill and incineration. In this case, there are problems of insufficient landfill and environmental polluti...

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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