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Fully degradable polyglycolic acid composite packaging material and preparation method thereof

A composite packaging material, polyglycolic acid technology, which is applied in packaging, wrapping paper, transportation and packaging, etc., can solve the problems of high cost and limited materials, and achieve good mechanical properties, simple preparation process and good microbial degradation.

Active Publication Date: 2019-07-16
睿泊(中国)环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the mechanical properties and thermal properties of the polylactic acid composite material have been improved, and it can be completely degraded in the natural environment after being used and discarded, it needs to be extracted from crops, the materials are limited, and the cost is relatively high.

Method used

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  • Fully degradable polyglycolic acid composite packaging material and preparation method thereof
  • Fully degradable polyglycolic acid composite packaging material and preparation method thereof
  • Fully degradable polyglycolic acid composite packaging material and preparation method thereof

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with specific embodiments.

[0033] A fully degradable polyglycolic acid composite packaging material, preferably, is made of the following components by weight:

[0034]

[0035] The method for preparing the above-mentioned fully degradable polyglycolic acid composite packaging material includes the following steps:

[0036] (1) Pulverize polyglycolic acid, polycaprolactone and / or poly(L-lactide-ε-caprolactone) in a low-temperature ultrafine pulverizer to obtain particles with an average particle size of 60-80μm, and mix them Uniform, forming a mixed main ingredient;

[0037] (2) Add opening agent, slip agent, toughening agent, water blocking agent, pentaerythritol diphosphite, chitosan, starch and reinforcing fiber to grind and crush to obtain particles with an average particle size of 60-80μm, and mix them evenly to form Mixed accessories

[0038] (3) Mix the mixed main materials and mixed auxiliary mater...

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Abstract

The invention discloses a fully degradable polyglycolic acid composite packaging material, which is prepared from the following components in parts by weight: polyglycolic acid, polycaprolactone, poly(L-lactide-Epsilon-caprolactone), anti-block agent, slippery agent, toughening agent, water barrier, chitosan, reinforcing fiber and the like. The invention also provides a preparation method of the fully degradable polyglycolic acid composite packaging material. The invention has the following advantages: microbial degradability and hydrolysis are good, the final form of the completely biodegradable material after decomposition is water and carbon dioxide, and there is no pollution to the environment; the material is safe and non-toxic, there is no potential health threat to animals and humans; the material has good mechanical properties, fully meets the needs of various applications of packaging materials; in the case of no influence on the chemical properties, the low-cost and no environmental pollution fillers are added, and the cost is effectively reduced; the preparation process is simple.

Description

Technical field [0001] The invention relates to the field of medical treatment and packaging materials, in particular to a fully degradable polyglycolic acid composite packaging material with low cost, good toughness and simple preparation and a preparation method thereof. Background technique [0002] According to statistics, the total annual global plastic consumption is 400 million tons, and China consumes more than 60 million tons, accounting for 15% of the total global consumption. The amount of discarded plastic after use is about 60%-70% of the total consumption. These discarded plastics have caused great damage to the surrounding environment, forming "white pollution". "White pollution" not only causes visual pollution to life, but also endangers agricultural production and ecological cycles. [0003] As the output of plastics continues to grow and their uses continue to expand, their waste is also increasing. Since plastics are difficult to degrade and rot in the natural...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L5/08C08L3/02C08L1/02C08L97/02C08K3/36C08K3/04C08J5/18B65D65/46
CPCB65D65/466C08J5/18C08J2367/04C08J2467/04C08L67/04C08L2201/06C08L2205/025C08L2205/035C08L2205/16C08L5/08C08L3/02C08L1/02C08L97/02C08K3/36C08K3/04C08J3/203C08J2403/02C08J2405/08C08K5/103C08K5/20C08K7/02C08K3/02B29C41/24B29C41/50B29K2067/043B29K2105/0008C08G63/06C08J5/045C08J2491/00C08J2491/06C08J2497/02C08K13/02C08L2207/324
Inventor 安家成
Owner 睿泊(中国)环保科技有限公司
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