CN110760105A - Preparation method of tourmaline powder-based latex mattress - Google Patents
Preparation method of tourmaline powder-based latex mattress Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2307/00—Characterised by the use of natural rubber
- C08J2307/02—Latex
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2433/12—Homopolymers or copolymers of methyl methacrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
The invention discloses a preparation method of an tourmaline powder-based latex mattress, which relates to the technical field of mattresses and comprises the following steps: (1) coating tourmaline powder with chitosan; (2) preparing a polymerization modifier; (3) mixing the raw materials; the tourmaline powder-based latex mattress prepared by the method has excellent mechanical property and can release negative ions.
Description
Technical Field
The invention belongs to the technical field of mattresses, and particularly relates to a preparation method of an tourmaline powder-based latex mattress.
Background
The mattress is a daily product of people's home life, plays a very important role to people's daily life, mattress on the market at present mainly has cotton pad, sponge mattress, latex mattress, spring mattress, palm mattress, etc., because cotton pad's resilience is not good, and easy hardening, spring mattress's gas permeability is better, but the spring mattress core must use soft filling material such as sponge, latex to disperse human gravity as the bedding course, the fibre of palm silk pad is easy to age and become fragile rupture, anti buckling performance is not good, and palm silk etc. makes the case of mattress filling material, but this kind of mattress filling material generally needs to utilize the gluing agent to bond dispersed plant fiber, therefore, the product developed contains poisonous substances such as formaldehyde, is unfavorable for human health. Cotton pads, spring mattresses and palm mattresses have gradually been replaced by foam-rubber pads and latex mattresses. Wherein the raw materials of natural latex mattress are limited, and the raw materials of synthetic latex mattress and sponge mattress all belong to petrochemical products, are non-renewable resources, and current technology is too simple, and the structure is too single, and the gas permeability and the wet nature of dispersing of the latex mattress that makes are relatively poor, and the very easy breed bacterium of live time and other microorganism distribute the peculiar smell, are unfavorable for the health, are difficult to satisfy modernization, hommization and individualized demand. In order to overcome the influence of the mattress on the sleeping environment and the human health, the development of the sterilizing and deodorizing latex mattress with good performance is the trend of mattress development in the future.
Disclosure of Invention
The invention aims to provide a preparation method of an tourmaline powder-based latex mattress, aiming at the existing problems.
The invention is realized by the following technical scheme:
a preparation method of an tourmaline powder-based latex mattress comprises the following steps:
(1) coating chitosan on tourmaline powder: uniformly dispersing tourmaline powder into a coupling agent aqueous solution, heating in a water bath at 80 ℃, stirring for 1 hour, then filtering, drying to constant weight, adding chitosan into an acetic acid solution to prepare a chitosan solution with the mass fraction of 10-11%, then adding the treated tourmaline powder into the chitosan solution, heating in the water bath at 80 ℃, performing ultrasonic treatment for 4-5min, then stirring for 1 hour at the rotation speed of 1800r/min, then performing suction filtration, and drying to constant weight to obtain the product;
(2) preparation of polymerization modifier: uniformly mixing sodium dodecyl benzene sulfonate, span 80, polyvinylpyrrolidone and deionized water according to the mass ratio of 2:2:0.1:65, adding the mixture into a reaction kettle, stirring the mixture for 40min at the rotating speed of 120r/min under the protection of inert gas, adding methyl methacrylate, stirring the mixture for 20-25min at the rotating speed of 200r/min under the heat preservation of 80 ℃ water bath, then dropwise adding an initiator aqueous solution and acrylamide, continuously stirring the mixture for 2 hours under the heat preservation, then carrying out rotary evaporation drying, washing and drying the mixture to constant weight to obtain the high-performance polyethylene glycol-styrene copolymer;
(3) mixing raw materials: mixing liquid natural latex, polyurethane elastomer, chitosan-coated tourmaline powder, liquid silica gel, a polymerization modifier and a vulcanizing agent, adding into a foaming machine, foaming, transferring into a mold after foaming is finished, and cooking and shaping to obtain a natural latex mattress finished product.
As a further technical scheme, the coupling agent aqueous solution is an organosilane coupling agent solution with the mass fraction of 5-6%.
As a further technical scheme, the mixing ratio of the organosilane coupling agent solution to the tourmaline powder is 400 ml: 150 and 180 g.
As a further technical scheme, the pH value of the acetic acid solution is 3.5.
As a further technical scheme, the ultrasonic power is 300W, and the frequency is 55 kHz.
As a further technical scheme, the inert gas is helium.
According to a further technical scheme, the mass ratio of the methyl methacrylate to the acrylamide is 6:1, and the mass of the acrylamide is 2.5% of that of the deionized water.
According to a further technical scheme, the mass of the initiator in the dropwise added initiator aqueous solution is 5% of that of acrylamide, and the initiator is ammonium persulfate.
As a further technical scheme, the liquid natural latex, the polyurethane elastomer, the chitosan-coated tourmaline powder, the liquid silica gel, the polymerization modifier and the vulcanizing agent are mixed according to the mass ratio of 70-80: 30-40: 12-15:5-8:3-5:0.2-0.6.
Has the advantages that:
the tourmaline powder-based latex mattress prepared by the method not only has excellent mechanical property, but also can release negative ions, and negative oxygen ion groups are formed by combining the released negative ions with oxygen molecules of air, so that the absorption rate of oxygen and the discharge rate of carbon dioxide in the lung of a human body can be greatly improved as the human body enters the human body after being inhaled, the mental state of the human body is improved, the oxygen content in blood of the human body is improved, the blood circulation is promoted, the physique is improved, and bacterial infection can be inhibited. By adding the polymerization modifier, the dispersibility of the chitosan-coated tourmaline powder can be effectively improved, and meanwhile, the graphene oxide can be used as a crosslinking point and is introduced into a polyurethane crosslinking structure, so that the dispersibility of the chitosan-coated tourmaline powder in a latex system is enhanced, the interface bonding force is improved, the crosslinking degree of molecules is enhanced, the mechanical property and the oxidation resistance of the latex mattress are remarkably improved, and meanwhile, the mechanical property of the latex mattress can be remarkably improved in the preparation process of the latex mattress, particularly in the foaming process, the intermolecular acting force can be effectively enhanced, and the condition that the mechanical property is reduced due to the reduction of the intermolecular acting force in the conventional latex foaming process is avoided.
Detailed Description
Example 1
A preparation method of an tourmaline powder-based latex mattress comprises the following steps:
(1) coating chitosan on tourmaline powder: uniformly dispersing tourmaline powder into a coupling agent aqueous solution, heating the coupling agent aqueous solution in a water bath at 80 ℃, stirring the mixture for 1 hour, filtering the mixture, drying the mixture to constant weight, adding chitosan into an acetic acid solution to prepare a chitosan solution with the mass fraction of 10%, then adding the treated tourmaline powder into the chitosan solution, heating the mixture in the water bath at 80 ℃, performing ultrasonic treatment for 4min, stirring the mixture for 1 hour at the rotating speed of 1800r/min, performing suction filtration, and drying the mixture to constant weight to obtain the product;
(2) preparation of polymerization modifier: uniformly mixing sodium dodecyl benzene sulfonate, span 80, polyvinylpyrrolidone and deionized water according to the mass ratio of 2:2:0.1:65, adding the mixture into a reaction kettle, stirring the mixture for 40min at the rotating speed of 120r/min under the protection of inert gas, adding methyl methacrylate, stirring the mixture for 20min at the rotating speed of 200r/min under the heat preservation of 80 ℃ water bath, dropwise adding an initiator aqueous solution and acrylamide, continuously stirring the mixture for 2 hours under the heat preservation, then carrying out rotary evaporation drying, washing and drying the mixture to constant weight to obtain the high-performance polyethylene glycol-styrene copolymer;
(3) mixing raw materials: mixing liquid natural latex, polyurethane elastomer, chitosan-coated tourmaline powder, liquid silica gel, a polymerization modifier and a vulcanizing agent, adding into a foaming machine, foaming, transferring into a mold after foaming is finished, and cooking and shaping to obtain a natural latex mattress finished product.
As a further technical scheme, the coupling agent aqueous solution is an organosilane coupling agent solution with the mass fraction of 5-6%.
As a further technical scheme, the mixing ratio of the organosilane coupling agent solution to the tourmaline powder is 400 ml: 150 g.
As a further technical scheme, the pH value of the acetic acid solution is 3.5.
As a further technical scheme, the ultrasonic power is 300W, and the frequency is 55 kHz.
As a further technical scheme, the inert gas is helium.
According to a further technical scheme, the mass ratio of the methyl methacrylate to the acrylamide is 6:1, and the mass of the acrylamide is 2.5% of that of the deionized water.
According to a further technical scheme, the mass of the initiator in the dropwise added initiator aqueous solution is 5% of that of acrylamide, and the initiator is ammonium persulfate.
As a further technical scheme, the liquid natural latex, the polyurethane elastomer, the chitosan-coated tourmaline powder, the liquid silica gel, the polymerization modifier and the vulcanizing agent are mixed in a mass ratio of 70: 30: 12:5:3:0.2.
Example 2
A preparation method of an tourmaline powder-based latex mattress comprises the following steps:
(1) coating chitosan on tourmaline powder: uniformly dispersing tourmaline powder into a coupling agent aqueous solution, heating the coupling agent aqueous solution in a water bath at 80 ℃, stirring the mixture for 1 hour, filtering the mixture, drying the mixture to constant weight, adding chitosan into an acetic acid solution to prepare a chitosan solution with the mass fraction of 11%, then adding the treated tourmaline powder into the chitosan solution, heating the mixture in the water bath at 80 ℃, performing ultrasonic treatment for 5 minutes, stirring the mixture for 1 hour at the rotating speed of 1800r/min, performing suction filtration, and drying the mixture to constant weight to obtain the product;
(2) preparation of polymerization modifier: uniformly mixing sodium dodecyl benzene sulfonate, span 80, polyvinylpyrrolidone and deionized water according to the mass ratio of 2:2:0.1:65, adding the mixture into a reaction kettle, stirring the mixture for 40min at the rotating speed of 120r/min under the protection of inert gas, adding methyl methacrylate, stirring the mixture for 25min at the rotating speed of 200r/min under the heat preservation of 80 ℃ water bath, dropwise adding an initiator aqueous solution and acrylamide, continuously stirring the mixture for 2 hours under the heat preservation, then carrying out rotary evaporation drying, washing and drying the mixture to constant weight to obtain the high-performance polyethylene glycol-styrene copolymer;
(3) mixing raw materials: mixing liquid natural latex, polyurethane elastomer, chitosan-coated tourmaline powder, liquid silica gel, a polymerization modifier and a vulcanizing agent, adding into a foaming machine, foaming, transferring into a mold after foaming is finished, and cooking and shaping to obtain a natural latex mattress finished product.
As a further technical scheme, the coupling agent aqueous solution is an organosilane coupling agent solution with the mass fraction of 5-6%.
As a further technical scheme, the mixing ratio of the organosilane coupling agent solution to the tourmaline powder is 400 ml: 180 g.
As a further technical scheme, the pH value of the acetic acid solution is 3.5.
As a further technical scheme, the ultrasonic power is 300W, and the frequency is 55 kHz.
As a further technical scheme, the inert gas is helium.
According to a further technical scheme, the mass ratio of the methyl methacrylate to the acrylamide is 6:1, and the mass of the acrylamide is 2.5% of that of the deionized water.
According to a further technical scheme, the mass of the initiator in the dropwise added initiator aqueous solution is 5% of that of acrylamide, and the initiator is ammonium persulfate.
As a further technical scheme, the liquid natural latex, the polyurethane elastomer, the chitosan-coated tourmaline powder, the liquid silica gel, the polymerization modifier and the vulcanizing agent are mixed in a mass ratio of 80: 40: 15: 8: 5: 0.6.
Example 3
A preparation method of an tourmaline powder-based latex mattress comprises the following steps:
(1) coating chitosan on tourmaline powder: uniformly dispersing tourmaline powder into a coupling agent aqueous solution, heating the coupling agent aqueous solution in a water bath at 80 ℃, stirring the mixture for 1 hour, then filtering the mixture, drying the mixture to constant weight, adding chitosan into an acetic acid solution to prepare a chitosan solution with the mass fraction of 10.5%, then adding the treated tourmaline powder into the chitosan solution, heating the mixture in the water bath at 80 ℃, performing ultrasonic treatment for 4.5min, stirring the mixture for 1 hour at the rotating speed of 1800r/min, then performing suction filtration, and drying the mixture to constant weight to obtain the product;
(2) preparation of polymerization modifier: uniformly mixing sodium dodecyl benzene sulfonate, span 80, polyvinylpyrrolidone and deionized water according to the mass ratio of 2:2:0.1:65, adding the mixture into a reaction kettle, stirring the mixture for 40min at the rotating speed of 120r/min under the protection of inert gas, adding methyl methacrylate, stirring the mixture for 22min at the rotating speed of 200r/min under the heat preservation of 80 ℃ water bath, dropwise adding an initiator aqueous solution and acrylamide, continuously stirring the mixture for 2 hours under the heat preservation, then carrying out rotary evaporation drying, washing and drying the mixture to constant weight to obtain the high-performance polyethylene glycol-styrene copolymer;
(3) mixing raw materials: mixing liquid natural latex, polyurethane elastomer, chitosan-coated tourmaline powder, liquid silica gel, a polymerization modifier and a vulcanizing agent, adding into a foaming machine, foaming, transferring into a mold after foaming is finished, and cooking and shaping to obtain a natural latex mattress finished product.
As a further technical scheme, the coupling agent aqueous solution is an organosilane coupling agent solution with the mass fraction of 5.5%.
As a further technical scheme, the mixing ratio of the organosilane coupling agent solution to the tourmaline powder is 400 ml: 160 g.
As a further technical scheme, the pH value of the acetic acid solution is 3.5.
As a further technical scheme, the ultrasonic power is 300W, and the frequency is 55 kHz.
As a further technical scheme, the inert gas is helium.
According to a further technical scheme, the mass ratio of the methyl methacrylate to the acrylamide is 6:1, and the mass of the acrylamide is 2.5% of that of the deionized water.
According to a further technical scheme, the mass of the initiator in the dropwise added initiator aqueous solution is 5% of that of acrylamide, and the initiator is ammonium persulfate.
As a further technical scheme, the liquid natural latex, the polyurethane elastomer, the chitosan-coated tourmaline powder, the liquid silica gel, the polymerization modifier and the vulcanizing agent are mixed in a mass ratio of 75: 35: 13:6:4:0.3.
Comparative example 1: the difference from example 1 is that the chitosan-coated tourmaline powder was replaced with an equal amount of tourmaline powder.
Comparative example 2: only differs from example 1 in that no polymerization modifier is added.
And (3) testing:
performance testing
Measuring the tensile strength and the elongation at break of the latex mattresses with the same specification by adopting a tensile testing machine, and testing according to GB/T6344-2008, wherein the testing speed is 500 mm/min;
TABLE 1
| Tensile strength MPa | |
| Example 1 | 25.21 |
| Example 2 | 23.29 |
| Example 3 | 23.96 |
| Comparative example 1 | 24.79 |
| Comparative example 2 | 13.53 |
As can be seen from Table 1, the latex mattress prepared by the method has excellent tensile properties.
An ore negative ion detector, the model of which is COM-3010pro, manufactured by COM-SYSTEM INC K.K., measuring the distance between the measurement range and the precision of less than or equal to 5% and measuring the average negative ion concentration of 15/cm in a detection environment, wherein the measurement range is from 0 to 10000/cm in dry labor, the working environment is from-10 to 50 ℃, the relative humidity is 90%, the negative ion concentration in the detection environment is from 15/cm in average, the negative ion concentration in the environment air in the cavity is from 40 × 20 × 20cm in dry labor by placing a sample into a closed cavity, detecting for one hour, measuring for multiple times, placing the chitosan-coated tourmaline powder prepared in 20g of embodiments and unprocessed tourmaline powder at the same cavity center position respectively, and taking the average value, wherein the distance between the detection point and the cavity center position is 10 cm;
TABLE 2
| Negative ion double/cm high yield | |
| Example 1 | 382 |
| Example 2 | 373 |
| Example 3 | 376 |
| Control group | 325 |
As can be seen from table 2, the chitosan-coated tourmaline powder prepared in the present invention can generate more negative ions than untreated tourmaline powder, and thus it can be seen that the treatment of the chitosan-coated tourmaline powder can improve the efficiency of the tourmaline powder in generating negative ions.
Claims (9)
1. The preparation method of the tourmaline powder-based latex mattress is characterized by comprising the following steps:
(1) coating chitosan on tourmaline powder: uniformly dispersing tourmaline powder into a coupling agent aqueous solution, heating in a water bath at 80 ℃, stirring for 1 hour, then filtering, drying to constant weight, adding chitosan into an acetic acid solution to prepare a chitosan solution with the mass fraction of 10-11%, then adding the treated tourmaline powder into the chitosan solution, heating in the water bath at 80 ℃, performing ultrasonic treatment for 4-5min, then stirring for 1 hour at the rotation speed of 1800r/min, then performing suction filtration, and drying to constant weight to obtain the product;
(2) preparation of polymerization modifier: uniformly mixing sodium dodecyl benzene sulfonate, span 80, polyvinylpyrrolidone and deionized water according to the mass ratio of 2:2:0.1:65, adding the mixture into a reaction kettle, stirring the mixture for 40min at the rotating speed of 120r/min under the protection of inert gas, adding methyl methacrylate, stirring the mixture for 20-25min at the rotating speed of 200r/min under the heat preservation of 80 ℃ water bath, then dropwise adding an initiator aqueous solution and acrylamide, continuously stirring the mixture for 2 hours under the heat preservation, then carrying out rotary evaporation drying, washing and drying the mixture to constant weight to obtain the high-performance polyethylene glycol-styrene copolymer;
(3) mixing raw materials: mixing liquid natural latex, polyurethane elastomer, chitosan-coated tourmaline powder, liquid silica gel, a polymerization modifier and a vulcanizing agent, adding into a foaming machine, foaming, transferring into a mold after foaming is finished, and cooking and shaping to obtain a natural latex mattress finished product.
2. The method for preparing the tourmaline powder-based latex mattress according to claim 1, wherein the coupling agent aqueous solution is an organosilane coupling agent solution with the mass fraction of 5-6%.
3. The method for preparing a tourmaline powder-based latex mattress according to claim 2, wherein the organosilane coupling agent solution and tourmaline powder are mixed in a ratio of 400 ml: 150 and 180 g.
4. The method of making an tourmaline powder based latex mattress according to claim 1, wherein said acetic acid solution has a pH of 3.5.
5. The method of preparing an tourmaline powder-based latex mattress according to claim 1, wherein the ultrasonic power is 300W and the frequency is 55 kHz.
6. The method of making an tourmaline powder based latex mattress according to claim 1, wherein said inert gas is helium.
7. The method for preparing the tourmaline powder-based latex mattress according to claim 1, wherein the mass ratio of the methyl methacrylate to the acrylamide is 6:1, and the mass of the acrylamide is 2.5% of the mass of the deionized water.
8. The method for preparing the tourmaline powder-based latex mattress according to claim 1, wherein the mass of the initiator in the dropwise added initiator aqueous solution is 5% of that of acrylamide, and the initiator is ammonium persulfate.
9. The preparation method of the tourmaline powder-based latex mattress according to claim 1, wherein the liquid natural latex, the polyurethane elastomer, the chitosan-coated tourmaline powder, the liquid silica gel, the polymerization modifier and the vulcanizing agent are mixed in a mass ratio of (70-80): 30-40: 12-15:5-8:3-5:0.2-0.6.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111303678A (en) * | 2020-03-02 | 2020-06-19 | 关圣睿 | Anion powder for decoration material and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111303678A (en) * | 2020-03-02 | 2020-06-19 | 关圣睿 | Anion powder for decoration material and preparation method and application thereof |
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Application publication date: 20200207 |