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Nanocrystalline total degradation material and preparation method thereof

A fully degradable and nanocrystalline technology, applied in the field of fully degradable nanocrystalline materials and their preparation, can solve problems such as difficult molding, difficult production, and difficult processing

Inactive Publication Date: 2019-05-21
WEIFANG HUAWEI MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing of traditional polylactic acid materials is very difficult, it is not easy to form a film, the requirements for equipment are very high, molding is difficult, and it is difficult to produce products with high specifications.
[0004] The degradable materials in the prior art have the following defects: strength, ductility, and degradation ability cannot be combined at the same time; at the same time, the production conditions are harsh, processing is difficult, and it is not easy to promote

Method used

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  • Nanocrystalline total degradation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 A nanocrystalline fully degradable material

[0023] Described a kind of nanocrystalline fully degradable material, by weight, includes raw material components:

[0024] 80 parts of nano-calcium, 20 parts of methyl acrylate, 25 parts of ethyl acrylate, 2 parts of PCL, 2 parts of PEG, 7 parts of glycerin, 1 part of coupling agent, 2 parts of PBAT, 2 parts of PLA, cross-linking agent K-001 2 share.

[0025] The preparation method of the nanocrystalline fully degradable material:

[0026] 1. Add nano-calcium powder and glycerin to the stirring tank, and start stirring;

[0027] 2. Add methyl acrylate and ethyl acrylate dropwise during high-speed stirring, stir for 300 rpm, and carry out polymerization and grafting reaction, and control the reaction temperature to 60 degrees.

[0028] 3. After the reaction is completed, cool to 40°C; add coupling agent, stir for 15-20 minutes, then add cross-linking agent K-100, and continue stirring for 10-15 minutes.

[0029...

Embodiment 2

[0032] Example 2 A nanocrystalline fully degradable material

[0033] Described a kind of nanocrystalline fully degradable material, by weight, includes raw material components:

[0034] 82 parts of nano calcium, 20 parts of methyl acrylate, 20 parts of ethyl acrylate, 2 parts of PCL, 2.2 parts of PEG, 6 parts of glycerin, 1.2 parts of coupling agent, 2 parts of PBAT, 1.8 parts of PLA, crosslinking agent K-001 2 share.

[0035] Described nano-calcium: the particle size is 70-90 nanometers, the water content is lower than 0.2%, and the purity is 99.9%;

[0036] The PCL: polycaprolactone, in the present invention, in order to obtain a better use effect, preferably, the PCL grade is CAPA6500;

[0037] The PEG: polyethylene glycol 200. In the present invention, in order to obtain a better use effect, preferably, the model of the PEG is American Dow PEG200, with a density of 1.27g / ml (25°C);

[0038] The coupling agent: carbodiimide;

[0039] The PBAT: a copolymer of butylene a...

Embodiment 3

[0048] Example 3 A nanocrystalline fully degradable material

[0049] Described a kind of nanocrystalline fully degradable material, by weight, includes raw material components:

[0050] 81.5 parts of nano calcium, 21 parts of methyl acrylate, 24 parts of ethyl acrylate, 2.2 parts of PCL, 2.5 parts of PEG, 6 parts of glycerin, 4 parts of linseed oil, 1 part of coupling agent, 2.1 parts of PBAT, 2 parts of PLA, Joint agent K-001 1.7 parts.

[0051] Described nano-calcium: the particle size is 70-90 nanometers, the water content is lower than 0.2%, and the purity is 99.9%;

[0052] The PCL: polycaprolactone, in the present invention, in order to obtain a better use effect, preferably, the PCL grade is CAPA6500;

[0053] The PEG: polyethylene glycol 200. In the present invention, in order to obtain a better use effect, preferably, the model of the PEG is American Dow PEG200, with a density of 1.27g / ml (25°C);

[0054] The coupling agent: carbodiimide;

[0055] The PBAT: a copol...

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Abstract

The invention provides a nanocrystalline total degradation material and a preparation method thereof, the nanocrystalline total degradation material comprises the following raw material components: nano calcium, methyl acrylate, ethyl acrylate, PCL, PEG, glycerin, a coupling Agent, PBAT, PLA and a crosslinker. The time for complete degradation of the nanocrystalline fully degradable material in the soil is 9-12 months; and the time of complete degradation in the soil above 4 DEG C is 6-7 months.

Description

technical field [0001] The invention relates to a nanocrystalline fully degradable material and a preparation method thereof, belonging to the field of degradable materials. Background technique [0002] Degradable materials are materials that can be degraded in a thermodynamic and kinetic sense over a period of time. According to the external factors of degradation, it can be divided into: photodegradable materials, biodegradable materials, etc. The main influencing factors are temperature, molecular weight, material structure, etc. [0003] Degradable materials in the prior art include polylactic acid materials and starch plastics. The vast majority of starch plastics currently produced in my country are filled starch plastics, that is, a certain proportion of starch is added to non-biodegradable polymer materials, and the physical properties of the entire material collapse through the biodegradation of starch, prompting a large number of end groups to be exposed. Oxidati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C08L33/12C08L67/04C08L71/02C08L67/02C08K13/02C08K5/053C08K3/26C08K5/29C08J5/18C08F220/18C08F220/14
Inventor 王晓凯王洪锋王松之
Owner WEIFANG HUAWEI MATERIALS TECH CO LTD