Rubber-plastic crosslinked foaming heat preservation packaging box and injection molding process

Abstract

The invention belongs to the technical field of rubber and plastic products, and provides a rubber-plastic crosslinked foaming heat preservation packaging box and an injection molding process. The packaging box is prepared from the following components in parts by weight: 20-60 parts of polyethylene, 20-60 parts of polystyrene, 10-40 parts of an ethylene-vinyl acetate copolymer; 5-30 parts of thermoplastic elastomer, 5-20 parts of talcum powder, 5-20 parts of calcium powder, 0.5-2 parts of zinc oxide, 0.3-1 part of zinc stearate, 0.5-1.5 parts of dispersing agent, 0.5 to 1.5 parts of a cross-linking agent, 0.3-1 part of stearic acid, 20-50 parts of a flame retardant, 0.1-1 part of a quick-curing agent, 2-6 parts of a foaming agent, and 0-15 parts of a pigment, the injection molding processcomprises the following steps: mixing the components in the raw materials to obtain a mixture, milling the mixture into sheets, granulating, cooling, plasticizing, injecting into a mold, crosslinkingin the mold, opening the mold, foaming, shaping, and cooling to obtain the rubber-plastic crosslinked foaming heat preservation packaging box. By means of the technical scheme, the problems that in the prior art, a foaming heat preservation box cannot be folded, is poor in heat preservation effect, high in transportation cost and not environmentally friendly are solved.

Description

technical field

[0001] The invention belongs to the technical field of rubber and plastic products, and relates to a rubber and plastic cross-linked foaming thermal insulation packaging box and an injection molding process. Background technique

[0002] In the field of cold chain transportation, many items such as medicines and food need to be kept at a certain temperature or within a certain temperature range for a certain period of time during storage, turnover, and transportation, so the items to be kept insulated need to be placed in thermal insulation packaging In the box, the insulated packaging box is transferred together with the logistics transportation of the goods.

[0003] Traditional thermal insulation packaging boxes include polypropylene, dingba foam, polyurethane foam, Oxford cloth or nylon cloth, and non-woven aluminum foil composite materials. Insulation packaging boxes made of polypropylene, dingba foam, polyurethane foam and other materials are not folda...

Examples

Embodiment 1

[0026] A rubber and plastic cross-linked foam insulation packaging box, comprising the following components in parts by weight:

[0027] 20 parts of polyethylene, 20 parts of polystyrene, 10 parts of ethylene-vinyl acetate copolymer, 5 parts of thermoplastic elastomer, 5 parts of talcum powder, 5 parts of calcium powder, 0.5 parts of zinc oxide, 0.3 parts of zinc stearate, dispersant 0.5 part, 0.5 part of crosslinking agent, 0.3 part of stearic acid, 20 parts of flame retardant, 0.1 part of quick curing agent, 2 parts of foaming agent, wherein, the dispersant is monoglyceride stearate, and the crosslinking agent is di tert-butyl peroxide cumene, the flame retardant is xylyl phosphate, the quick-cooking agent is TAIC, and the foaming agent is azodicarbonamide;

[0028] The injection molding process of the thermal insulation packaging box includes the following steps:

[0029] S1. According to the formula of a kind of rubber-plastic cross-linked foam insulation packing box ment...

Embodiment 2

[0036] A rubber and plastic cross-linked foam insulation packaging box, comprising the following components in parts by weight:

[0037] 60 parts of polyethylene, 60 parts of polystyrene, 40 parts of ethylene-vinyl acetate copolymer, 30 parts of thermoplastic elastomer, 20 parts of talcum powder, 20 parts of calcium powder, 2 parts of zinc oxide, 1 part of zinc stearate, dispersant 1.5 parts, 1.5 parts of crosslinking agent, 1 part of stearic acid, 50 parts of flame retardant, 1 part of quick-cooking agent, 6 parts of foaming agent, 15 parts of pigment, wherein the dispersant is glyceryl tristearate, and The coupling agent is di-tert-butyl peroxide cumene, the flame retardant is triphenyl phosphate, the quick-cooking agent is TAIC, and the foaming agent is azodicarbonamide;

[0038] The injection molding process of the thermal insulation packaging box includes the following steps:

[0039] S1. According to the formula of a kind of rubber-plastic cross-linked foam insulation p...

Embodiment 3

[0046] A rubber and plastic cross-linked foam insulation packaging box, comprising the following components in parts by weight:

[0047] 40 parts of polyethylene, 40 parts of polystyrene, 23 parts of ethylene-vinyl acetate copolymer, 18 parts of thermoplastic elastomer, 12 parts of talcum powder, 12 parts of calcium powder, 1.3 parts of zinc oxide, 0.6 parts of zinc stearate, dispersant 1 part, 1 part of crosslinking agent, 0.6 part of stearic acid, 35 parts of flame retardant, 0.5 part of quick curing agent, 4 parts of foaming agent, 8 parts of pigment, wherein the dispersant is vinyl bis stearamide, cross-linking agent The coupling agent is di-tert-butyl cumene peroxide, the flame retardant is tris(2,2-dibromomethyl-3-bromopropyl phosphate), the quick-cooking agent is TAIC, and the foaming agent is azo Diformamide;

[0048] The injection molding process of the thermal insulation packaging box includes the following steps:

[0049] S1. According to the formula of a kind of ...

technical field

[0001] The invention belongs to the technical field of rubber and plastic products, and relates to a rubber and plastic cross-linked foaming thermal insulation packaging box and an injection molding process. Background technique

[0002] In the field of cold chain transportation, many items such as medicines and food need to be kept at a certain temperature or within a certain temperature range for a certain period of time during storage, turnover, and transportation, so the items to be kept insulated need to be placed in thermal insulation packaging In the box, the insulated packaging box is transferred together with the logistics transportation of the goods.

[0003] Traditional thermal insulation packaging boxes include polypropylene, dingba foam, polyurethane foam, Oxford cloth or nylon cloth, and non-woven aluminum foil composite materials. Insulation packaging boxes made of polypropylene, dingba foam, polyurethane foam and other materials are not folda...

Examples

Embodiment 1

[0026] A rubber and plastic cross-linked foam insulation packaging box, comprising the following components in parts by weight:

[0027] 20 parts of polyethylene, 20 parts of polystyrene, 10 parts of ethylene-vinyl acetate copolymer, 5 parts of thermoplastic elastomer, 5 parts of talcum powder, 5 parts of calcium powder, 0.5 parts of zinc oxide, 0.3 parts of zinc stearate, dispersant 0.5 part, 0.5 part of crosslinking agent, 0.3 part of stearic acid, 20 parts of flame retardant, 0.1 part of quick curing agent, 2 parts of foaming agent, wherein, the dispersant is monoglyceride stearate, and the crosslinking agent is di tert-butyl peroxide cumene, the flame retardant is xylyl phosphate, the quick-cooking agent is TAIC, and the foaming agent is azodicarbonamide;

[0028] The injection molding process of the thermal insulation packaging box includes the following steps:

[0029] S1. According to the formula of a kind of rubber-plastic cross-linked foam insulation packing box ment...

Embodiment 2

[0036] A rubber and plastic cross-linked foam insulation packaging box, comprising the following components in parts by weight:

[0037] 60 parts of polyethylene, 60 parts of polystyrene, 40 parts of ethylene-vinyl acetate copolymer, 30 parts of thermoplastic elastomer, 20 parts of talcum powder, 20 parts of calcium powder, 2 parts of zinc oxide, 1 part of zinc stearate, dispersant 1.5 parts, 1.5 parts of crosslinking agent, 1 part of stearic acid, 50 parts of flame retardant, 1 part of quick-cooking agent, 6 parts of foaming agent, 15 parts of pigment, wherein the dispersant is glyceryl tristearate, and The coupling agent is di-tert-butyl peroxide cumene, the flame retardant is triphenyl phosphate, the quick-cooking agent is TAIC, and the foaming agent is azodicarbonamide;

[0038] The injection molding process of the thermal insulation packaging box includes the following steps:

[0039] S1. According to the formula of a kind of rubber-plastic cross-linked foam insulation p...

Embodiment 3

[0046] A rubber and plastic cross-linked foam insulation packaging box, comprising the following components in parts by weight:

[0047] 40 parts of polyethylene, 40 parts of polystyrene, 23 parts of ethylene-vinyl acetate copolymer, 18 parts of thermoplastic elastomer, 12 parts of talcum powder, 12 parts of calcium powder, 1.3 parts of zinc oxide, 0.6 parts of zinc stearate, dispersant 1 part, 1 part of crosslinking agent, 0.6 part of stearic acid, 35 parts of flame retardant, 0.5 part of quick curing agent, 4 parts of foaming agent, 8 parts of pigment, wherein the dispersant is vinyl bis stearamide, cross-linking agent The coupling agent is di-tert-butyl cumene peroxide, the flame retardant is tris(2,2-dibromomethyl-3-bromopropyl phosphate), the quick-cooking agent is TAIC, and the foaming agent is azo Diformamide;

[0048] The injection molding process of the thermal insulation packaging box includes the following steps:

[0049] S1. According to the formula of a kind of ...

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