CN113150747A - Preparation method of temperature-control cell coat composite material containing polyethylene glycol - Google Patents
Preparation method of temperature-control cell coat composite material containing polyethylene glycol Download PDFInfo
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- CN113150747A CN113150747A CN202110498759.7A CN202110498759A CN113150747A CN 113150747 A CN113150747 A CN 113150747A CN 202110498759 A CN202110498759 A CN 202110498759A CN 113150747 A CN113150747 A CN 113150747A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/02—Inorganic materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K21/00—Fireproofing materials
- C09K21/14—Macromolecular materials
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Abstract
The application discloses a preparation method of a temperature control exocytosis composite material containing polyethylene glycol, wherein a phase change material polyethylene glycol is used as a temperature matrix, paraffin, stearic acid, aluminum hydroxide, 3.5 water zinc borate and chopped glass fiber powder are used as additive materials for compounding, the flame retardant property of the polyethylene glycol is combined with the water insoluble property of the paraffin and the stearic acid to obtain a composite material with two properties, then the aluminum hydroxide, the 3.5 water zinc borate and the chopped glass fiber are used as reinforcement bodies, and the temperature control exocytosis composite material containing the polyethylene glycol with the phase change temperature ranging from 58 ℃ to 75 ℃ is prepared by a water bath melting and stirring method, and is insoluble in water, and has good flame retardant property and mechanical property; the material is used as a coating shell, the phase state of the packaging material is controlled by temperature, and the solid phase is converted into the liquid phase, so that the release of the packaged substance is controlled. The fire-retardant fireproof coating is used for coal spontaneous combustion inhibition and forest and grassland fire prevention.
Description
Technical Field
The invention belongs to the field of temperature-control fireproof materials, and particularly relates to a preparation method of a temperature-control cell coat composite material containing polyethylene glycol.
Background
The solid-liquid phase change material realizes the storage and release of heat energy through solid-liquid phase change, comprises a high-temperature phase change material (the phase change temperature is more than 150 ℃) and a medium-low temperature phase change material (the phase change temperature is between 0 ℃ and 150 ℃), and is widely applied to the fields of building energy conservation, industrial waste heat recovery, electronic product heat protection, temperature regulation clothing and the like.
Polyethylene glycol is an ethylene oxide polymer, the molecular formula of the polyethylene glycol is represented by HOCH2(CH2OCH2) nCH2OH, the polyethylene glycol is a high-molecular polymer which is not easy to burn, nontoxic and pollution-free, has high phase-change enthalpy value, does not have an over-cooling phenomenon and does not have the phase separation problem, and the polyethylene glycol is an ideal phase-change energy storage material compared with inorganic hydrated salt, paraffin and the like. The polyethylene glycol with the relative molecular mass of 3000-20000 is white block or flake or white powder at normal temperature. It is soluble in water and has slight odor. Melting point 54-68 ℃. High crystallization rate, large phase change baking, no corrosion, no toxicity, stable performance, difficult supercooling and phase separation, and low price.
Disclosure of Invention
The technical problem to be solved is as follows:
aiming at the defects of the prior art, the application provides a preparation method of a temperature control cell coating composite material containing polyethylene glycol, which solves the problems of high raw material cost, complex preparation method, poor mechanical property, poor flame retardant effect and the like in the prior art, the temperature control cell coating composite material prepared by using polyethylene glycol, paraffin and stearic acid as phase change materials, aluminum hydroxide, 3.5 hydrozinc borate as inorganic flame retardant materials and chopped glass fiber powder as reinforcing materials is used as a specific packaging material and technology, and the phase state of the packaging material is controlled by temperature so as to further control the release of packaged objects.
Technical scheme
In order to achieve the purpose, the application is realized by the following technical scheme:
a preparation method of a temperature control cell coating composite material containing polyethylene glycol comprises the steps of taking phase change material polyethylene glycol as a base material in the temperature control cell coating composite material, taking paraffin, stearic acid, aluminum hydroxide, 3.5 zinc borate hydrate and chopped glass fiber powder as additive materials, and compounding the additive materials with the polyethylene glycol to obtain the temperature control cell coating composite material containing the polyethylene glycol.
Further, the mass percent of the raw material polyethylene glycol is 30-36%, the mass percent of the raw material paraffin is 20-24%, the mass percent of the raw material stearic acid is 10-12%, the mass percent of the raw material aluminum hydroxide is 12-17%, the mass percent of the raw material 3.5 zinc borate hydrate is 12-17%, the mass percent of the raw material chopped glass fiber powder is 4-6%, and the total content of the raw materials is 100%.
Further, the preparation method comprises the following specific operation steps:
step a: respectively weighing polyethylene glycol, paraffin, stearic acid, aluminum hydroxide, 3.5 parts of zinc borate hydrate and chopped glass fiber powder according to the mass ratio;
step b: firstly, putting the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder weighed in the step a into a beaker, uniformly mixing, putting the beaker into a constant-temperature water bath kettle, heating in a water bath, and obtaining a molten solution of the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder when the mixture is in a molten state;
step c: b, placing the beaker containing the molten liquid obtained in the step b on a carrying platform of a constant-temperature magnetic stirrer, setting the temperature at 75 ℃ and the rotating speed at 2500r/min, and stirring at constant temperature to uniformly mix the molten liquid;
step d: and c, injecting the uniformly mixed molten liquid obtained in the step c into a casting mold, and performing casting molding to obtain the temperature control cell coat composite material containing polyethylene glycol.
Further, the number average molecular weight of the polyethylene glycol is 3000-20000.
Furthermore, the temperature control cell coat composite material changes the raw material ratio of the temperature control cell coat composite material, and various materials generate synergistic effect to ensure that the melting temperature of the temperature control cell coat composite material is changed within the range of 65-75 ℃.
Furthermore, the polyethylene glycol, the paraffin and the stearic acid are used as solid-liquid phase change materials to realize the phase state of the temperature control composite material through solid-liquid phase change, and when the temperature rises to enable the composite material to be changed from a solid state to a liquid state, the composite material is melted to control the release of the encapsulated material to achieve the temperature control effect.
Further, the chopped glass fiber powder is used as a reinforcing material to enhance the mechanical property of the cell coating composite material.
Furthermore, the constant-temperature magnetic stirrer fully and uniformly stirs the materials, and combines the flame retardance of the polyethylene glycol, the hydrophobicity of the paraffin and the stearic acid, and the flame retardant property and the mechanical property of the reinforced material.
Further, the aluminum hydroxide and the 3.5-hydrated zinc borate are used as inorganic flame-retardant materials to enhance the flame-retardant performance of the coating composite material; and the temperature-control cell coat composite material is cooperated with a solid-liquid phase change material to change the melting temperature of the temperature-control cell coat composite material.
Further, the temperature of the constant-temperature water bath kettle in the step b is set to be 80 ℃; and c, stirring for 20-30 min in the step c.
Advantageous effects
The application provides a preparation method of a temperature control cell coat composite material containing polyethylene glycol, which has the following beneficial effects:
1. polyethylene glycol, paraffin and stearic acid are used as phase change materials to achieve the temperature control effect, the polyethylene glycol is a nonflammable, nontoxic and pollution-free high molecular polymer, and the melting point is 54-68 ℃; the paraffin is white and tasteless waxy solid, melts at 47-64 ℃, and is insoluble in water; the stearic acid is a white or off-white flaky solid, has a melting point of 67-72 ℃, is insoluble in water, is mixed with the paraffin in a specific proportion to generate a synergistic effect, and can enhance the mechanical property of the paraffin under the condition of not influencing the melting point of the paraffin; the chopped glass fiber powder is used as a reinforcing material to reinforce the mechanical property of the cell coat composite material, so that the material is prevented from being damaged in the transportation or use throwing process, and the ineffective release of inhibiting substances is prevented; the aluminum hydroxide and the 3.5-hydrated zinc borate are used as an inorganic flame retardant material to enhance the flame retardant property of the coating composite material.
2. The preparation method is simple, the materials are fully and uniformly stirred only by a constant-temperature magnetic stirrer, the flame retardance of the polyethylene glycol, the hydrophobicity of the paraffin and the stearic acid, the flame retardant property and the mechanical property of the reinforcement are combined, the synergistic effect is generated among all the formulas, the product is insoluble in water, the physical and chemical properties of the product are stable at normal temperature, the product is easy to store and is suitable for popularization and use.
3. The raw materials are easy to obtain and low in price, the preparation process is convenient, and the chopped glass fiber powder is used as a reinforcing material and added into the phase-change material, so that the phase-change material has better strength.
4. The application can develop a using method of a novel phase-change material by taking polyethylene glycol, paraffin and stearic acid as phase-change materials, aluminum hydroxide, 3.5-water zinc borate as inorganic flame-retardant materials and chopped glass fiber powder as a reinforcing material; adding aluminum hydroxide and 3.5 parts of zinc borate hydrate serving as an inorganic flame retardant material into the phase-change material, so that the phase-change material has better flame retardant capability; the phase-change composite material has the advantages of unchanged appearance at normal temperature, certain strength and flame retardant property.
5. The invention is different from the conventional application of phase-change materials on the market, creatively takes the solid-liquid phase-change material as a specific packaging material and technology, controls the phase state of the packaging material by temperature, and further controls the release of packaged objects.
Drawings
FIG. 1 is a flow chart of a process for producing a temperature controlled cell coating composite material containing polyethylene glycol according to the present application.
Detailed Description
The invention will now be further illustrated by reference to specific examples, which are intended to be illustrative of the invention and are not intended to be a further limitation of the invention.
Example 1:
the preparation method of the temperature control cell coat composite material containing the polyethylene glycol comprises the following steps of taking 30% by mass of the polyethylene glycol as a raw material, taking PEG 8000% by mass of the polyethylene glycol, taking 20% by mass of paraffin as a raw material, taking 12% by mass of stearic acid as a raw material, taking 16% by mass of aluminum hydroxide as a raw material, taking 16% by mass of zinc borate hydrate as a raw material 3.5, taking 6% by mass of chopped glass fiber powder as a raw material, and taking the total content of the raw materials as 100%.
The specific operation steps are as follows:
step a: respectively weighing polyethylene glycol, paraffin, stearic acid, aluminum hydroxide, 3.5 parts of zinc borate hydrate and chopped glass fiber powder according to the mass ratio;
step b: firstly, putting the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder which are weighed in the step a into a beaker, uniformly mixing, then putting the beaker into a constant-temperature water bath kettle for water bath heating, setting the temperature of the constant-temperature water bath kettle to be 80 ℃, and obtaining a molten liquid of the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder when the mixture is in a molten state;
step c: b, placing the beaker containing the molten liquid obtained in the step b on a carrying platform of a constant-temperature magnetic stirrer, setting the temperature at 75 ℃ and the rotating speed at 2500r/min, and stirring at constant temperature for 30min to uniformly mix the molten liquid;
step d: and c, injecting the uniformly mixed molten liquid obtained in the step c into a casting mold, and performing casting molding to obtain the temperature-controlled cell-coating composite material containing the polyethylene glycol, wherein the melting temperature of the obtained temperature-controlled cell-coating composite material containing the polyethylene glycol is 72-75 ℃.
Example 2:
the preparation method of the temperature control cell coat composite material containing the polyethylene glycol comprises the following steps of taking 32% of polyethylene glycol by mass, taking PEG6000 as the polyethylene glycol, taking 21% of paraffin as a raw material by mass, taking 12% of stearic acid as a raw material by mass, taking 15% of aluminum hydroxide as a raw material by mass, taking 15% of zinc borate hydrate as a raw material 3.5 by mass, taking 5% of chopped glass fiber powder as a raw material by mass, and taking the total content of the raw materials as 100%.
The specific operation steps are as follows:
step a: respectively weighing polyethylene glycol, paraffin, stearic acid, aluminum hydroxide, 3.5 parts of zinc borate hydrate and chopped glass fiber powder according to the mass ratio;
step b: firstly, putting the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder which are weighed in the step a into a beaker, uniformly mixing, then putting the beaker into a constant-temperature water bath kettle for water bath heating, setting the temperature of the constant-temperature water bath kettle to be 80 ℃, and obtaining a molten liquid of the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder when the mixture is in a molten state;
step c: b, placing the beaker containing the molten liquid obtained in the step b on a carrying platform of a constant-temperature magnetic stirrer, setting the temperature at 75 ℃ and the rotating speed at 2500r/min, and stirring at constant temperature for 30min to uniformly mix the molten liquid;
step d: and c, injecting the uniformly mixed molten liquid obtained in the step c into a casting mold, and performing casting molding to obtain the temperature-controlled cell-coating composite material containing the polyethylene glycol, wherein the melting temperature of the obtained temperature-controlled cell-coating composite material containing the polyethylene glycol is 70-72 ℃.
Example 3:
the preparation method of the temperature control cell coat composite material containing the polyethylene glycol comprises the following steps of taking 36% by mass of the polyethylene glycol as a raw material, taking PEG6000 as the polyethylene glycol, taking 24% by mass of paraffin as the raw material, taking 10% by mass of stearic acid as the raw material, taking 13% by mass of aluminum hydroxide as the raw material, taking 13% by mass of zinc borate hydrate as the raw material 3.5, taking 4% by mass of chopped glass fiber powder as the raw material, and taking the total content of the raw materials as 100%.
The specific operation steps are as follows:
step a: respectively weighing polyethylene glycol, paraffin, stearic acid, aluminum hydroxide, 3.5 parts of zinc borate hydrate and chopped glass fiber powder according to the mass ratio;
step b: firstly, putting the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder which are weighed in the step a into a beaker, uniformly mixing, then putting the beaker into a constant-temperature water bath kettle for water bath heating, setting the temperature of the constant-temperature water bath kettle to be 80 ℃, and obtaining a molten liquid of the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder when the mixture is in a molten state;
step c: b, placing the beaker containing the molten liquid obtained in the step b on a carrying platform of a constant-temperature magnetic stirrer, setting the temperature at 75 ℃ and the rotating speed at 2500r/min, and stirring at constant temperature for 30min to uniformly mix the molten liquid;
step d: and c, injecting the uniformly mixed molten liquid obtained in the step c into a casting mold, and performing casting molding to obtain the temperature-controlled cell-coating composite material containing polyethylene glycol, wherein the melting temperature of the obtained temperature-controlled cell-coating composite material containing polyethylene glycol is 65-70 ℃.
Finally, it should be understood that the above-described preferred embodiments are merely illustrative of the technical solutions of the present application and are not intended to limit the present application, and although the present application has been described in detail through the above-described preferred embodiments, it should be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present application, and any changes, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A preparation method of a temperature control cell coat composite material containing polyethylene glycol is characterized by comprising the following steps: the phase-change material polyethylene glycol is used as a matrix material in the temperature-control exocytosis composite material, and the temperature-control exocytosis composite material containing the polyethylene glycol is prepared by compounding the polyethylene glycol and paraffin, stearic acid, aluminum hydroxide, 3.5 zinc borate hydrate and chopped glass fiber powder which are used as additive materials.
2. The method for preparing a temperature-controlled cell coating composite material containing polyethylene glycol according to claim 1, wherein the temperature-controlled cell coating composite material comprises the following components: the mass percent of the raw material polyethylene glycol is 30-36%, the mass percent of the raw material paraffin is 20-24%, the mass percent of the raw material stearic acid is 10-12%, the mass percent of the raw material aluminum hydroxide is 12-17%, the mass percent of the raw material 3.5 zinc borate hydrate is 12-17%, the mass percent of the raw material chopped glass fiber powder is 4-6%, and the total content of the raw materials is 100%.
3. The preparation method of the temperature-controlled cell coating composite material containing polyethylene glycol according to claim 2, wherein the preparation method comprises the following specific operation steps:
step a: respectively weighing polyethylene glycol, paraffin, stearic acid, aluminum hydroxide, 3.5 parts of zinc borate hydrate and chopped glass fiber powder according to the mass ratio;
step b: firstly, putting the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder weighed in the step a into a beaker, uniformly mixing, putting the beaker into a constant-temperature water bath kettle, heating in a water bath, and obtaining a molten solution of the polyethylene glycol, the paraffin, the stearic acid, the aluminum hydroxide, the 3.5-water zinc borate and the chopped glass fiber powder when the mixture is in a molten state;
step c: b, placing the beaker containing the molten liquid obtained in the step b on a carrying platform of a constant-temperature magnetic stirrer, setting the temperature at 75 ℃ and the rotating speed at 2500r/min, and stirring at constant temperature to uniformly mix the molten liquid;
step d: and c, injecting the uniformly mixed molten liquid obtained in the step c into a casting mold, and performing casting molding to obtain the temperature control cell coat composite material containing polyethylene glycol.
4. The method for preparing a temperature-controlled cell coating composite material containing polyethylene glycol according to claim 3, wherein the temperature-controlled cell coating composite material comprises the following components: the number average molecular weight of the polyethylene glycol is 3000-20000.
5. The method for preparing a temperature-controlled cell coating composite material containing polyethylene glycol according to claim 3, wherein the temperature-controlled cell coating composite material comprises the following components: the temperature control cell-coat composite material has the advantages that the melting temperature of the temperature control cell-coat composite material is changed within the range of 65-75 ℃ due to the synergistic effect of various materials by changing the raw material ratio of the temperature control cell-coat composite material.
6. The method for preparing a temperature-controlled cell coating composite material containing polyethylene glycol according to claim 3, wherein the temperature-controlled cell coating composite material comprises the following components: the polyethylene glycol, the paraffin and the stearic acid are used as solid-liquid phase change materials, the phase state of the temperature control composite material is realized through solid-liquid phase change, and when the temperature is increased to enable the composite material to be changed from a solid state to a liquid state, the composite material is melted to control the release of the encapsulated material to achieve the temperature control effect.
7. The method for preparing a temperature-controlled cell coating composite material containing polyethylene glycol according to claim 3, wherein the temperature-controlled cell coating composite material comprises the following components: the chopped glass fiber powder is used as a reinforcing material to enhance the mechanical property of the cell coating composite material.
8. The method for preparing a temperature-controlled cell coating composite material containing polyethylene glycol according to claim 7, wherein the temperature-controlled cell coating composite material comprises the following components: the constant-temperature magnetic stirrer fully and uniformly stirs the materials, and combines the flame retardance of the polyethylene glycol, the hydrophobicity of the paraffin and the stearic acid, and the flame retardant property and the mechanical property of the reinforced material.
9. The method for preparing a temperature-controlled cell coating composite material containing polyethylene glycol according to claim 3, wherein the temperature-controlled cell coating composite material comprises the following components: the aluminum hydroxide and the 3.5-hydrated zinc borate are used as inorganic flame-retardant materials to enhance the flame-retardant property of the coating composite material; and the temperature-control cell coat composite material is cooperated with a solid-liquid phase change material to change the melting temperature of the temperature-control cell coat composite material.
10. The method for preparing a temperature-controlled cell coating composite material containing polyethylene glycol according to claim 3, wherein the temperature-controlled cell coating composite material comprises the following components: the temperature of the constant-temperature water bath kettle in the step b is set to be 80 ℃; and c, stirring for 20-30 min in the step c.
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| CN113769319A (en) * | 2021-09-27 | 2021-12-10 | 中国矿业大学 | Connecting type temperature control cell-coating inhibition ball for forest and grassland fire prevention and use method |
| CN115093858A (en) * | 2022-07-01 | 2022-09-23 | 中国矿业大学 | Temperature-sensitive silica body inhibitor for preventing coal spontaneous combustion and preparation method and application thereof |
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Application publication date: 20210723 |