Low-temperature high-cooling-capacity ice crystal material based on multi-element compound salt solution and preparation method of low-temperature high-cooling-capacity ice crystal material

Abstract

The invention discloses a low-temperature high-cold-capacity ice crystal material based on a multi-element compound salt solution and a preparation method thereof, and belongs to the technical field of ice crystal preparation, the low-temperature high-cold-capacity ice crystal material comprises water and additives, the additives comprise salts, a stabilizer, a thickener, a corrosion inhibitor and a preservative, and the salts such as sodium chloride (salt) and calcium chloride can form an ionic solution when dissolved in water. The ions can interfere with the hydrogen-bond interaction between water molecules and reduce the freezing temperature of water; the preservative is added, so that the risk that the ice crystals deteriorate due to microbial contamination in the storage and use processes can be remarkably reduced, and the long-term stability and reliability are improved; the stabilizer can help maintain the stability of the ice crystal in the storage and use processes, and prevent the ice crystal from being decomposed or phase-changed due to environmental change; and the thickening agent can increase the viscosity of the ice crystal solution, so that the ice crystal solution is easier to control and manage in the storage and use processes.

Description

Technical Field

[0001] The present invention relates to the technical field of ice crystal preparation, and in particular to a low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution and a preparation method thereof. Background Art

[0002] Low-temperature and high-cooling capacity ice crystal material is a special cold storage medium, which is mainly used in refrigeration equipment to enhance the cooling effect.

[0003] The refrigeration effect of the low-temperature and high-cooling capacity ice crystal material in the existing technology is still slower than that of traditional refrigerants, which may lead to the inability of the ice crystal material to meet the demand in some occasions where rapid cooling is required. Summary of the invention

[0004] Based on the above problems, the embodiments of the present invention provide a low-temperature and high-refrigeration ice crystal material based on a multi-component composite salt solution and a preparation method thereof. The low-temperature and high-refrigeration ice crystal material based on a multi-component composite salt solution absorbs water and expands when the temperature decreases to form a solid-like structure; when the temperature increases, it slowly releases water to extend the refrigeration time. The contents of the present invention are as follows:

[0005] The first object of the present invention is to provide a low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution, including water and additives. The technical point is that the added amount of the additive is 1-1.5wt% of the ice crystal material that inhibits crystallization. Calculated in parts by weight, the additive includes 10-20 parts by weight of salts, 2-6 parts by weight of stabilizers, 0.1-0.3 parts by weight of thickeners, 0.1-0.3 parts by weight of corrosion inhibitors and 0.05-0.06 parts by weight of preservatives.

[0006] To better implement the above scheme, the salts in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of the present invention include 20-40wt% sodium chloride, 10-30wt% potassium chloride, 30-40wt% sodium gluconate and 10-20wt% calcium chloride.

[0007] In order to better implement the above scheme, the stabilizer in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of the present invention is at least one of high-viscosity carboxymethyl starch, edible gelatin and agar.

[0008] In order to better realize the above scheme, the thickener in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of the present invention is at least one of xanthan gum, ammonium acryloyldimethyltaurate and sodium carboxymethylcellulose.

[0009] In order to better implement the above scheme, the corrosion inhibitor in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of the present invention is at least one of chromate and phosphate.

[0010] In order to better implement the above scheme, the preservative in the low-temperature and high-refrigeration ice crystal material based on the multi-component composite salt solution of the present invention is at least one of kason, sodium benzoate and isothiazolin.

[0011] The second object of the present invention is to provide a method for preparing a low-temperature and high-cooling ice crystal material based on a multi-component composite salt solution, the technical point of which is that it comprises the following steps:

[0012] Step 1, adding graphite powder to an appropriate amount of water, stirring until the resin is evenly mixed to form a uniform first mixed liquid;

[0013] Step 2, mixing water, stabilizer, thickener, corrosion inhibitor and preservative evenly to obtain a second mixed liquid;

[0014] Step 3, mixing the first mixed liquid obtained in step 1 and the second mixed liquid in step 2 to obtain a crystallization-inhibiting ice crystal material;

[0015] Step 3: Place the ice crystal inhibiting material in a suitable closed container to prevent leakage, and seal it tightly.

[0016] Compared with the prior art, the low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution and the preparation method thereof of the present invention have the following beneficial effects:

[0017] 1. The low-temperature and high-cooling ice crystal material based on the multi-component composite salt solution of the present invention includes water and additives, wherein the additives include salts, stabilizers, thickeners, corrosion inhibitors and preservatives, wherein salts, such as sodium chloride (table salt) and calcium chloride, form ionic solutions when dissolved in water. These ions interfere with the hydrogen bonding between water molecules and reduce the freezing temperature of water; adding preservatives can significantly reduce the risk of ice crystals deteriorating due to microbial contamination during storage and use, and improve their long-term stability and reliability; stabilizers can help maintain the stability of ice crystals during storage and use, and prevent them from decomposing or changing phases due to environmental changes; thickeners can increase the viscosity of ice crystal solutions, making them easier to control and manage during storage and use.

[0018] 2. The salt substances of the present invention include 20-40wt% sodium chloride, 10-30wt% potassium chloride, 30-40wt% sodium gluconate and 10-20wt% calcium chloride. By selecting appropriate salts and accurately controlling their proportions, the freezing point of the solution can be accurately adjusted to be lower than the freezing point of pure water. This allows the cold to be stored and released at a lower temperature, improving energy efficiency and storage capacity. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Example 1

[0021] A low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution comprises water and additives, wherein the additive is added in an amount of 1.25wt% of the ice crystal material inhibiting crystallization, and the additive comprises 15kg of salts, 4kg of stabilizer, 0.2kg of thickener, 0.2kg of corrosion inhibitor and 0.055kg of preservative.

[0022] Furthermore, the salts in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment include 30wt% sodium chloride, 20wt% potassium chloride, 35wt% sodium gluconate and 15wt% calcium chloride.

[0023] Furthermore, the stabilizer in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment is high-viscosity carboxymethyl starch.

[0024] Furthermore, the thickener in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment is xanthan gum.

[0025] Furthermore, the corrosion inhibitor in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment is chromate.

[0026] Furthermore, the preservative in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment is kason.

[0027] A method for preparing a low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution in this embodiment comprises the following steps:

[0028] Step 1, adding graphite powder to an appropriate amount of water, stirring until the resin is evenly mixed to form a uniform first mixed liquid;

[0029] Step 2, mixing water, stabilizer, thickener, corrosion inhibitor and preservative evenly to obtain a second mixed liquid;

[0030] Step 3, mixing the first mixed liquid obtained in step 1 and the second mixed liquid in step 2 to obtain a crystallization-inhibiting ice crystal material;

[0031] Step 3: Place the ice crystal inhibiting material in a suitable closed container to prevent leakage, and seal it tightly.

[0032] Example 2

[0033] A low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution comprises water and additives, wherein the additive is added in an amount of 1wt% of the ice crystal material inhibiting crystallization, and the additive comprises 10kg of salts, 2kg of stabilizer, 0.1kg of thickener, 0.1kg of corrosion inhibitor and 0.05kg of preservative.

[0034] Furthermore, the salts in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment include 40wt% sodium chloride, 10wt% potassium chloride, 40wt% sodium gluconate and 10wt% calcium chloride.

[0035] Furthermore, the stabilizer in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment is edible gelatin.

[0036] Furthermore, the thickener in the low-temperature and high-refrigeration capacity ice crystal material based on the multi-component composite salt solution of this embodiment is ammonium acryloyldimethyltaurate.

[0037] Furthermore, the corrosion inhibitor in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment is phosphate.

[0038] Furthermore, the preservative in the low-temperature and high-refrigeration capacity ice crystal material based on the multi-component composite salt solution of this embodiment is sodium benzoate.

[0039] A method for preparing a low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution in this embodiment comprises the following steps:

[0040] Step 1, adding graphite powder to an appropriate amount of water, stirring until the resin is evenly mixed to form a uniform first mixed liquid;

[0041] Step 2, mixing water, stabilizer, thickener, corrosion inhibitor and preservative evenly to obtain a second mixed liquid;

[0042] Step 3, mixing the first mixed liquid obtained in step 1 and the second mixed liquid in step 2 to obtain a crystallization-inhibiting ice crystal material;

[0043] Step 3: Place the ice crystal inhibiting material in a suitable closed container to prevent leakage, and seal it tightly.

[0044] Example 3

[0045] A low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution comprises water and additives, wherein the additive is added in an amount of 1.5wt% of the ice crystal material inhibiting crystallization, and the additive comprises 20kg of salts, 6kg of stabilizer, 0.3kg of thickener, 0.3kg of corrosion inhibitor and 0.06kg of preservative.

[0046] Furthermore, the salts in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment include 20wt% sodium chloride, 30wt% potassium chloride, 30wt% sodium gluconate and 20wt% calcium chloride.

[0047] Furthermore, the stabilizer in the low-temperature and high-cooling capacity ice crystal material based on the multi-component compound salt solution of this embodiment is agar.

[0048] Furthermore, the thickener in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment is sodium carboxymethyl cellulose.

[0049] Furthermore, the corrosion inhibitor in the low-temperature and high-cooling capacity ice crystal material based on the multi-component composite salt solution of this embodiment is chromate.

[0050] Furthermore, the preservative in the low-temperature and high-refrigeration capacity ice crystal material based on the multi-component composite salt solution of this embodiment is isothiazolin.

[0051] A method for preparing a low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution in this embodiment comprises the following steps:

[0052] Step 1, adding graphite powder to an appropriate amount of water, stirring until the resin is evenly mixed to form a uniform first mixed liquid;

[0053] Step 2, mixing water, stabilizer, thickener, corrosion inhibitor and preservative evenly to obtain a second mixed liquid;

[0054] Step 3, mixing the first mixed liquid obtained in step 1 and the second mixed liquid in step 2 to obtain a crystallization-inhibiting ice crystal material;

[0055] Step 3: Place the ice crystal inhibiting material in a suitable closed container to prevent leakage, and seal it tightly.

[0056] Comparative Example 1

[0057] The "salts include 30wt% sodium chloride, 20wt% potassium chloride, 35wt% sodium gluconate and 15wt% calcium chloride" in Example 1 is changed to "salts include 50wt% sodium chloride, 50wt% sodium gluconate", and the remaining operations are the same as in Example 1.

[0058] Test example

[0059] Test example

[0060] The low-temperature and high-cooling capacity ice crystal materials of Examples 1-3 and Comparative Example 1 that have been stored in cold are placed on the experimental table, and a thermometer is placed in the container containing the low-temperature and high-cooling capacity ice crystal materials, and the initial temperature (T0) of the two is recorded. The temperature (T n ), and then calculate the average temperature change. The specific experimental results are as follows:

[0061] Table 1

[0062] Example 1 Example 2 Example 3 Comparative Example 1 Cooling rate (℃ / min) 0.6 0.5 0.6 0.3

[0063] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A low-temperature and high-cooling ice crystal material based on a multi-component compound salt solution, comprising water and an additive, characterized in that: The additive is added in an amount of 1-1.5 wt % of the ice crystal inhibiting material. In terms of parts by weight, the additive includes 10-20 parts by weight of salts, 2-6 parts by weight of stabilizers, 0.1-0.3 parts by weight of thickeners, 0.1-0.3 parts by weight of corrosion inhibitors and 0.05-0.06 parts by weight of preservatives.

2. The low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution according to claim 1, characterized in that: The salts include 20-40 wt% of sodium chloride, 10-30 wt% of potassium chloride, 30-40 wt% of sodium gluconate and 10-20 wt% of calcium chloride.

3. The low-temperature and high-cooling capacity ice crystal material based on a multi-component composite salt solution according to claim 1, characterized in that: The stabilizer is at least one of high-viscosity carboxymethyl starch, edible gelatin and agar.

4. The low-temperature and high-cooling capacity ice crystal material based on a multi-component compound salt solution according to claim 1, characterized in that: The thickener is at least one of xanthan gum, ammonium acryloyldimethyltaurate and sodium carboxymethylcellulose.

5. The low-temperature and high-cooling capacity ice crystal material based on a multi-component compound salt solution according to claim 1, characterized in that: The corrosion inhibitor is at least one of chromate and phosphate.

6. The low-temperature and high-cooling capacity ice crystal material based on a multi-component compound salt solution according to claim 1, characterized in that: The preservative is at least one of kasone, sodium benzoate and isothiazolin.

7. A method for preparing a low-temperature and high-cooling ice crystal material based on a multi-component compound salt solution, characterized in that: The following steps are involved: Step 1, adding graphite powder to an appropriate amount of water, stirring until the resin is evenly mixed to form a uniform first mixed liquid; Step 2, mixing water, stabilizer, thickener, corrosion inhibitor and preservative evenly to obtain a second mixed liquid; Step 3, mixing the first mixed liquid obtained in step 1 and the second mixed liquid in step 2 to obtain a crystallization-inhibiting ice crystal material; Step 3: Place the ice crystal inhibiting material in a suitable closed container to prevent leakage, and seal it tightly.