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Luggage compartment gel cool storage agent and preparation method thereof

A cooling agent and interlayer technology, which is applied in the field of gel cooling agent for luggage interlayer and its preparation, can solve the problems of complex preparation process, difficulty in large-scale production, high cost, etc., achieve wide source of raw materials, simple preparation method, relatively The effect of changing temperature

Inactive Publication Date: 2015-09-09
HANGZHOU SUNHOLD INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former has the disadvantages of low latent heat of phase change, complex preparation process, and high cost.
The latter is a new application field expanded in the practical application of superabsorbent resin series products, but the current preparation methods of polymer water-absorbent resins are all synthesized in the anaerobic state (that is, nitrogen protection is required) using distilled water as a solvent. , the cost is high, and it is difficult to carry out large-scale production, which limits its application in the field of cold storage
Especially when the cooling agent is used in the compartment of luggage, some emit poisonous gas, which is not environmentally friendly and endangers people's health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In the embodiment of the present invention, a gel cooling agent for luggage interlayer, the raw materials according to the mass percentage include:

[0042] Acrylic 5%

[0043] Sodium chloride 15%

[0044] Ethyl acetate 9%

[0045] Nano silica 2%

[0046] Maltodextrin 3%,

[0047] The balance is water.

[0048] The preparation method of the gel cold storage agent for the luggage compartment, the specific steps include:

[0049] 1) Weigh each raw material separately, add acrylic acid and ethyl acetate into water at room temperature, seal and stir, the stirring speed is 1600r / min, and the stirring time is 10min;

[0050] 2) Raise the temperature to 40°C, then add maltodextrin, seal and continue to stir, the stirring speed is 1600r / min, and the stirring time is 10min;

[0051] 3) Raise the temperature to 85°C, add nano silicon dioxide, seal and continue to stir at a stirring speed of 450r / min for 5min; cool to room temperature to obtain the product.

Embodiment 2

[0053] In the embodiment of the present invention, a gel cooling agent for luggage interlayer, the raw materials according to the mass percentage include:

[0054] Acrylic 9%

[0055] Sodium chloride 21%

[0056] Ethyl acetate 12%

[0057] Nano silica 6%

[0058] Maltodextrin 8%,

[0059] The balance is water.

[0060] The preparation method of the gel cold storage agent for the luggage compartment, the specific steps include:

[0061] 1) Weigh each raw material separately, add acrylic acid and ethyl acetate into water at room temperature, seal and stir, the stirring speed is 2000r / min, and the stirring time is 30min;

[0062] 2) Raise the temperature to 50°C, then add maltodextrin, seal and continue to stir, the stirring speed is 1600-2000r / min, and the stirring time is 20min;

[0063]3) Raise the temperature to 90°C, add nano-silica, seal and continue to stir at a stirring speed of 500r / min for 8min; cool to room temperature to get ready.

Embodiment 3

[0065] In the embodiment of the present invention, a gel cooling agent for luggage interlayer, the raw materials according to the mass percentage include:

[0066] Acrylic 6%

[0067] Sodium chloride 17%

[0068] Ethyl acetate 10%

[0069] Nano silica 3%

[0070] Maltodextrin 5%,

[0071] The balance is water.

[0072] The preparation method of the gel cold storage agent for the luggage compartment, the specific steps include:

[0073] 1) Weigh each raw material separately, add acrylic acid and ethyl acetate into water at room temperature, seal and stir, the stirring speed is 1700r / min, and the stirring time is 15min;

[0074] 2) Raise the temperature to 43°C, then add maltodextrin, seal and continue to stir, the stirring speed is 1700r / min, and the stirring time is 13min;

[0075] 3) Raise the temperature to 86°C, add nano-silica, seal and continue to stir at a stirring speed of 465r / min for 6min; cool to room temperature to get ready.

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Abstract

The invention discloses a luggage compartment gel cool storage agent including the following raw materials by mass: 5-9% of acrylic acid, 15-21% of sodium chloride, 9-12% of ethyl acetate, 2-6% of nano silicon dioxide, 3-8% of maltodextrin and balance of water. At room temperature, the acrylic acid and the ethyl acetate are added into water, sealed and mixed; the temperature rises up to 40-50 DEG C, then the maltodextrin is added, sealed and mixed, the temperature rises up to 85-90 DEG C, the nano silicon dioxide is added, sealed and mixed, and the luggage compartment gel cool storage agent is obtained by cooling to room temperature. The luggage compartment gel cool storage agent is gelatinous, non-toxic, tasteless, safe, reliable, effective, environmentally friendly, simple in preparation method, wide in raw material sources, and low in cost; the experiment proves that the luggage compartment gel cool storage agent has the appropriate phase change temperature and larger phase change latent heat, the phase change temperature is-10 to 1 DEG C, the phase change latent heat is 260 KJ / Kg-285 KJ / Kg, and the luggage compartment gel cool storage agent is especially suitable for luggage compartments.

Description

technical field [0001] The invention relates to the technical field of cold storage, in particular to a gel cold storage agent for luggage compartments and a preparation method thereof. Background technique [0002] Cold storage agent is a translucent (or opaque), viscous jelly-like mixture composed of organic or (and) inorganic compounds, which can absorb and store a large amount of cold energy at low temperatures, and can release a large amount of cold energy at higher temperatures. Cooling capacity, maintain a low temperature environment in itself and in a small range around for a long time. [0003] The current cold storage technology is mainly used in air-conditioning of buildings. With the development of technology, it is expected to expand its application range. The research and development of low-temperature cold storage technology in the application of temperature-controlled packaging has theoretical and practical significance. Traditional cooling agents are mainly...

Claims

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Application Information

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IPC IPC(8): C09K5/06
CPCC09K5/06
Inventor 冯罗平
Owner HANGZHOU SUNHOLD INDAL
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