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Degradable meal box

A lunch box and box body technology, which is applied in applications, clothing, accessories, etc., can solve the problem of high production cost of degradable lunch boxes, achieve the effect of simple preparation method, simple preparation process, and improved high temperature resistance

Inactive Publication Date: 2020-03-27
西安和光明宸科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a degradable lunch box, which solves the problem of high preparation cost of the degradable lunch box in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The preparation method of box body and box cover is as follows:

[0021] In the first step, under high temperature conditions, add D-lactide, initiator, and catalyst to the solvent in sequence to react to obtain D-polylactic acid. The mass ratio of initiator to D-lactide is 6-9:1000, The dosage of the catalyst is 0.4-0.6% of the mass of D-lactide, the initiator is isopropanol, the catalyst is aluminum isopropoxide, the solvent is dichloromethane, and the reaction temperature is 120°C-140°C;

[0022] In the second step, weigh 97-99 parts of right-helical polylactic acid, 1-3 parts of left-helical polylactic acid, 5-50 parts of vinyl acetate, 2-5 parts of chain extender, and 1-5 parts of toughening agent, 100-200 parts of ethyl butyl perfluoroether, 200-600 parts of organic alcohol, 80-200 parts of organochlorosilane, 30-100 parts of trihydrocarbyl monochlorosilane, and mix uniformly to obtain a mixture;

[0023] In the third step, the mixture obtained in the second step...

Embodiment 1

[0028] In the first step, under high temperature conditions, add D-lactide, initiator, and catalyst to the solvent in sequence, and react to obtain D-polylactic acid. The mass ratio of initiator to D-lactide is 6:1000, and the amount of catalyst is 0.4% of the mass of D-lactide, the initiator is isopropanol, the catalyst is aluminum isopropoxide, the solvent is dichloromethane, and the reaction temperature is 120°C;

[0029] In the second step, 97 parts of right-helical polylactic acid, 1 part of left-helical polylactic acid, 5 parts of vinyl acetate, 2 parts of chain extender, 1 part of toughening agent, ethyl 100 parts of butyl perfluoroether, 200 parts of organic alcohol, 80 parts of organochlorosilane, and 30 parts of trihydrocarbyl monochlorosilane, mixed uniformly to obtain a mixture;

[0030] In the third step, the mixture obtained in the second step is put into a twin-screw extruder, extruded and granulated to obtain a masterbatch;

[0031] In the fourth step, take 15...

Embodiment 2

[0035] In the first step, under high temperature conditions, add D-lactide, initiator, and catalyst to the solvent in sequence to react to obtain D-polylactic acid. The mass ratio of initiator to D-lactide is 9:1000, and the amount of catalyst 0.6% of the mass of D-lactide, the initiator is isopropanol, the catalyst is aluminum isopropoxide, the solvent is dichloromethane, and the reaction temperature is 140°C;

[0036] In the second step, 99 parts of right-helical polylactic acid, 3 parts of left-helical polylactic acid, 50 parts of vinyl acetate, 5 parts of chain extender, 5 parts of toughening agent, ethyl 200 parts of butyl perfluoroether, 600 parts of organic alcohol, 200 parts of organochlorosilane, and 100 parts of trihydrocarbyl monochlorosilane, mixed uniformly to obtain a mixture;

[0037] In the third step, the mixture obtained in the second step is put into a twin-screw extruder, extruded and granulated to obtain a masterbatch;

[0038] The fourth step is to take ...

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Abstract

The invention belongs to the technical field of catering supplies, and provides a degradable meal box which comprises a box body and a box cover. The box body and the box cover are both made of polylactic acid composite materials. The box body and the box cover are made of the following materials: 97-99 parts of right-spiral polylactic acid, 1-3 parts of left-spiral polylactic acid, 5-50 parts ofvinyl acetate, 2-5 parts of chain extender and 1-5 parts of flexibilizer, and 100-200 parts of ethyl butyl perfluoroether, 200-600 parts of organic alcohol, 80-200 parts of organochlorosilane and 30-100 parts of trialkyl monochlorosilane. Compared with the existing degradable meal box, the preparation process is simpler and more environment-friendly, the high-temperature resistance of the meal boxis improved and the ingredients of the degradable meal box contain vinyl acetate and thus the flexibility of the meal box is improved.

Description

technical field [0001] The invention belongs to the technical field of catering supplies preparation and relates to a degradable lunch box. Background technique [0002] As takeaways have entered people's lives, ordering takeaways has become a way of life for many people. According to survey data, my country uses an average of 14.6 billion lunch boxes a year, and most of these lunch boxes are non-degradable. The consequence of use is to cause irreversible pollution and damage to the environment. Now there are some degradable lunch boxes on the market, but the price of such degradable lunch boxes is relatively high, and businesses are not far away from using them, and the price of this kind of lunch boxes is high. The reason is that the preparation cost of degradable materials is relatively high, so it is necessary to provide a low-cost degradable lunch box. Contents of the invention [0003] The purpose of the present invention is to provide a degradable lunch box, which so...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08K3/34C08K5/101A45C11/20
CPCA45C11/20C08L67/04C08L2201/06C08L2201/08C08L2205/025C08K3/34C08K5/101
Inventor 韩梅
Owner 西安和光明宸科技有限公司
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