Heat preservation food packaging box and preparation method thereof

A technology for food packaging boxes and outer boxes, applied in the directions of lining/internal coating, covering/external coating, etc., can solve the problems of increasing system cost, limitation of application scope, etc., and achieve the effect of good thermal insulation performance

Inactive Publication Date: 2019-10-25
娄运军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the solid-liquid phase change material will appear in a liquid state during the phase change process, it must be packaged in a container, which not only increases the cost of the system, but also limits its application range.

Method used

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  • Heat preservation food packaging box and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Insulated food packaging box, including outer box and inner liner. The inner wall of the outer box contains the coating of phase-change material, the shape of the outer box is consistent with that of the inner bag, and the size of the inner bag is slightly smaller than that of the outer box, so that the inner bag can be embedded in the outer box.

[0076] The phase change material is composed of neopentyl glycol and pentaerythritol; the mass ratio of neopentyl glycol and pentaerythritol is 3:2.

[0077] The material of the outer box is heat-insulating polypropylene, wherein the raw material ratio of the heat-insulating polypropylene is: expanded perlite 8wt%, dispersant 1.5wt%, polypropylene 90.5%, and the dispersant is composed of calcium stearate , polyethylene wax mixed composition; the mass ratio of calcium stearate, polyethylene wax is 1:1.

[0078] The material of the liner is biaxially stretched polystyrene, wherein the raw material ratio of the biaxially stretc...

Embodiment 2

[0089] Basically the same as Example 1, the only difference is:

[0090] The material of the outer box is heat-insulating polypropylene, wherein the raw material ratio of the heat-insulating polypropylene is: expanded perlite 7wt%, dispersant 1.5wt%, polypropylene 91.5%, and the dispersant is composed of calcium stearate and polyethylene wax; the mass ratio of the calcium stearate and the polyethylene wax is 1:1.

[0091] In Example 2, the thermal insulation performance of the outer box was tested with reference to GB / T 10294-2008, and the temperature of the cold plate of the thermal conductivity instrument was set to 25°C and the temperature of the hot plate was 80°C. After testing, the thermal conductivity of Example 2 was 0.035W / (m·k).

[0092] The tensile properties of the outer box in Example 2 were tested with reference to the invention of Patent Application No. 201410254036.2. Test conditions: temperature 20°C, relative humidity 50%, speed 20mm / min. After testing, th...

Embodiment 3

[0094] Basically the same as Example 1, the only difference is:

[0095] The material of the outer box is heat-insulating polypropylene, wherein the raw material ratio of the heat-insulating polypropylene is: expanded perlite 9wt%, dispersant 1.5wt%, polypropylene 89.5%, and the dispersant is composed of calcium stearate and polyethylene wax; the mass ratio of the calcium stearate and the polyethylene wax is 1:1.

[0096] In Example 3, the thermal insulation performance of the outer box was tested with reference to GB / T 10294-2008, and the temperature of the cold plate of the thermal conductivity instrument was set to 25°C and the temperature of the hot plate was 80°C. After testing, the thermal conductivity of Example 3 is 0.016W / (m·k).

[0097] The tensile properties of the outer box in Example 3 were tested with reference to the invention of Patent Application No. 201410254036.2. Test conditions: temperature 20°C, relative humidity 50%, speed 20mm / min. After testing, the...

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PUM

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Abstract

The invention discloses a heat preservation food packaging box and a preparation method thereof. The heat preservation food packaging box comprises an outer box, an inner container and a box cover, wherein a phase change material is arranged between the outer box and the inner container. The heat preservation food packaging box has good heat preservation performance, the outer box has thermal insulation performance, the phase change material between the outer box and the inner container can continuously heat food, specially, the stability of the temperature of the food can be continuously maintained in severe cold winter, the packaging box can be repeatedly recycled and reused, and the packaging box and the method have important significance for environmental protection.

Description

technical field [0001] The invention belongs to the technical field of food packaging, and in particular relates to an insulated food packaging box and a preparation method thereof. Background technique [0002] With the accelerated pace of urban life, ordering food delivery has become a common consumption habit in people's lives. At present, the delivery of food is basically carried out by riders. Generally, the delivery staff puts the food in the relevant incubator for heat preservation. However, the food is stored for too long during the delivery process, and some The thermal insulation effect of the thermal insulation box is not ideal, and the thermal insulation box cannot be reused many times, which not only increases the cost, but also causes environmental pollution. [0003] Phase change material energy storage is to use the thermal effect of the material phase change process to store and release energy. It has the advantages of high energy storage density, approxim...

Claims

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Application Information

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IPC IPC(8): B65D25/14B65D25/34C08L23/12C08L25/06
CPCB65D25/14B65D25/34C08L23/12C08L25/06C08L2205/03C08L23/06C08K7/26C08L1/02C08L91/06C08K9/06C08K9/08C08K3/34
Inventor 娄运军
Owner 娄运军
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