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Preparation method of meal box added with antibacterial master batch

An antibacterial masterbatch and lunch box technology, which is applied in the field of preparing lunch boxes with antibacterial masterbatches, can solve the problems of reduced strength of substrates, affected durability, lack of bacterial antibacterial treatment ability, etc., so as to improve durability, safety, and sufficient Blending effects, guaranteed smooth and glossy effects

Pending Publication Date: 2022-05-13
苏州市和好塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that the bio-starch masterbatch of the lunch box is likely to cause a decrease in the strength of the base material, affect the overall durability, and lack the antibacterial treatment ability for bacteria, a kind of meal with antibacterial masterbatch is proposed. Cassette preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The invention provides a technical solution: a method for preparing a lunch box with antibacterial masterbatch, which specifically includes the following steps:

[0034] S101. Drying and blending the base materials, sorting the raw materials of the composition and performing drying treatment, and spreading out the moisture after drying;

[0035] The raw materials of the S101 composition are composed of the following components by weight: polypropylene 98%, antioxidant 1%, discoloration inhibitor 1%, the antioxidant is a phosphite antioxidant, and the discoloration inhibitor It is a benzotriazole light stabilizer, and the drying temperature of the base material in the S101 is 50°C, and the flattening time is 20 minutes;

[0036] S102, Modified preparation of antibacterial masterbatch, mix nano-graphene into deionized water, ultrasonically disperse for 25 minutes, add sodium hydroxide dropwise, then slowly pour in the mixed solution of zinc oxide and chitosan after stirri...

Embodiment 2

[0042] The difference from Example 1 is: a method for preparing a lunch box with antibacterial masterbatch, which specifically includes the following steps:

[0043] S101. Drying and blending the base materials, sorting the raw materials of the composition and performing drying treatment, and spreading out the moisture after drying;

[0044] The raw material of the S101 composition is composed of the following components by weight: polypropylene 96%, antioxidant 2%, discoloration inhibitor 2%, the antioxidant is a phosphite antioxidant, and the discoloration inhibitor It is a benzotriazole light stabilizer, the drying temperature of the base material in the S101 is 60°C, and the average length of the flattening is 25min;

[0045] S102, Modified preparation of antibacterial masterbatch, mix nano-graphene into deionized water, ultrasonically disperse for 30 minutes, add sodium hydroxide dropwise, then slowly pour in the mixed solution of zinc oxide and chitosan after stirring, f...

Embodiment 3

[0051] All different from Examples 1-2: a method for preparing a lunch box with antibacterial masterbatches, specifically comprising the following steps:

[0052] S101. Drying and blending the base materials, sorting the raw materials of the composition and performing drying treatment, and spreading out the moisture after drying;

[0053] The raw material of the S101 composition is composed of the following components by weight: polypropylene 94%, antioxidant 3%, discoloration inhibitor 3%, the antioxidant is a phosphite antioxidant, and the discoloration inhibitor It is a benzotriazole light stabilizer, the drying temperature of the base material in the S101 is 55°C, and the average length of the flattening is 20-30min;

[0054] S102. Modified preparation of antibacterial masterbatch, mix nano-graphene into deionized water, ultrasonically disperse for 25-35min, add sodium hydroxide dropwise, stir and slowly pour in zinc oxide and chitosan mixed solution, after fully mixing, ...

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Abstract

The invention discloses a preparation method of a meal box added with antibacterial master batches, and belongs to the technical field of meal box production. S101, drying and blending of base materials; s102, modification preparation of the antibacterial master batch; s103, mixing and extruding; and S104, injection molding is carried out. According to the invention, after the graphene master batch is loaded with zinc oxide and chitosan, the fiber strength of the master batch is enhanced, the loading of zinc oxide in gaps in graphene is met, the full mixing effect is improved through the loaded zinc oxide, and meanwhile, the antibacterial master batch and zinc ions are added, so that relatively strong bactericidal ability can be realized; meanwhile, the purpose of long-acting sterilization after the meal box is heated can be achieved in the slow release process through graphene-loaded zinc ions, the loading anti-pressure ability can be improved through titanium dioxide particles by adding corresponding titanium dioxide nano aerosol during material mixing, the smoothness and glossiness of the outer surface can be guaranteed after preparation, and the service life of the meal box is prolonged. The durability and the safety are improved.

Description

technical field [0001] The invention belongs to the technical field of lunch box production, and in particular relates to a preparation method of a lunch box added with antibacterial masterbatch. Background technique [0002] The lunch box is a standard disposable tableware that has emerged with the development of the takeaway industry. When the dishes are put into the lunch box and delivered to the dining table, bacteria tend to adhere to the surface of the lunch box and tableware in a multi-step process, which in turn leads to the spread of viruses. Infection, the research and manufacture of antibacterial tableware, can effectively cut off the contact between people and bacteria, can effectively cut off the "pollution source" and transmission source of bacteria, reduce the transmission of diseases, and have great significance for improving people's quality of life. Therefore, the addition of antibacterial agents as polymer materials has become a research hotspot. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L5/08C08K3/22C08K3/04C08K9/12
CPCC08L23/12C08K2201/011C08K2003/2296C08K2003/2241C08L5/08C08K3/22C08K3/042C08K9/12
Inventor 李晓燕郭志军
Owner 苏州市和好塑业有限公司
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