CN113072755B - Natural latex pillow and preparation process thereof - Google Patents
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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
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
- A47G9/10—Pillows
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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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- 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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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
- A47G9/10—Pillows
- A47G2009/1018—Foam pillows
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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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
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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
- 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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- 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
- C08J2483/07—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
Abstract
The invention provides a natural latex pillow and a preparation process thereof, which comprises the steps of S1 preparing modified liquid silica gel, S2 mixing the natural latex, vegetable oleic acid, an emulsifier and the modified liquid silica gel to obtain a mixed solution A, and S3 foaming, curing and shaping the mixed solution A, wherein the obtained natural latex pillow has excellent performance, can enhance the mechanical strength and the tear strength of the latex pillow, improve the mechanical property of the latex pillow, and can reduce the PSQI value, namely shorten the time of falling asleep, prolong the sleep time, reduce the sleep disorder and improve the sleep quality.
Description
Technical Field
The invention relates to the technical field of latex products, in particular to a natural latex pillow and a preparation process thereof.
Background
The natural latex is a viscous milky white liquid, which is a milky water dispersion of rubber particles in a near-neutral medium, the acidity of the latex is increased due to the action of oxygen and microorganisms in the air, the latex can be naturally solidified within 2-12 h, and a certain amount of ammonia solution is added as a protective agent to prevent the natural solidification. The natural latex belongs to rubber thermoplastic synthetic resin, and is characterized by high elasticity, good film-forming property during bonding and rich flexibility of a rubber film, so that the rubber film has excellent flexing resistance, shock resistance and creep resistance, is suitable for bonding of parts under dynamic conditions and bonding of materials with different thermal expansion coefficients, and can cause the problem of poor performance of the latex product because biological organisms secrete certain substances such as protein, fatty acid, saccharide and the like to be mixed into the latex in the production process of the latex.
The invention discloses a latex and a method for preparing a latex product by adopting the latex, wherein a publication No. CN106750618B Chinese invention patent adds fluororubber, an anti-aging agent, an accelerant, a stabilizer, casein, a dispersant, a surfactant and the like into natural rubber, and the invention effectively improves the stability, heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance by improving a formula process, inhibits or delays the aging of the latex product, improves the quality of the latex, but because a plurality of chemical substances are added, the chemical properties of the natural latex such as air permeability and moisture absorption are influenced, the surface tension of the natural latex is reduced, and the size of a rubber pore is uneven, so that the mechanical property of the latex product is influenced;
chinese patent No. CN106750611A, a modified natural latex material, which contains the following components by weight percentage: 0.2-5% of silk fibroin, 0.05-2% of silicon dioxide, 0.1-2% of polymethyl methacrylate, 0.05-1% of resorcinol bis (diphenyl) phosphate and the balance of natural latex. The latex film prepared by the latex material has improved mechanical property and solvent resistance, but the improvement effect is not obvious.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a natural latex pillow and a preparation process thereof, which solve the problems of poor air permeability and hygroscopicity of the latex pillow and further improve the mechanical problem of the latex pillow.
The technical scheme of the invention is realized as follows: a preparation process of a natural latex pillow comprises the following steps: the method comprises the following steps:
s1, preparing modified liquid silica gel: firstly, mixing 5-15 parts of precipitated white carbon black, 3-5 parts of fucoidin and 1-5 parts of glycerol, pouring the mixture into an internal mixer to be kneaded and banburied for 1-3 hours at 120-150 ℃, then adding 10-30 parts of silica gel resin and 10-26 parts of polyvinyl silicone oil into the internal mixer, kneading and banburying the mixture together, and continuously banburying the mixture for 50-80 minutes at 200-250 ℃ to obtain modified liquid silica gel; the white carbon black is firstly mixed with fucoidin and glycerol to ensure that surface hydroxyl is easy to react with hydroxyl-containing compounds, so that the surface of precipitated silica in the white carbon black is modified during banburying, hydrophilic silica is modified into hydrophobic silica through surface treatment, and then the white carbon black is banburied with silica gel resin and polyvinyl silicone oil to change the physicochemical property of the surface of the white carbon black and improve the compatibility between white carbon black particles and silica gel resin molecules, thereby improving the lipophilicity, dispersibility and compatibility of liquid silica gel;
s2, sequentially adding the natural latex, the vegetable oleic acid, the emulsifier and the modified liquid silica gel into a stirrer, stirring for 12-25 min at 40-80 ℃, and uniformly mixing to obtain a mixed solution A; the natural latex and the modified liquid silica gel are mixed, so that the mixed solution A can be stably dispersed for a long time, and good interface combination can be ensured after film forming;
s3, adding the mixed solution A into a foaming agent, placing the mixed solution A into a foaming tray, injecting gas, foaming the material for 36-80 hours, injecting the obtained foam into a mold, heating, curing and shaping after the mold is filled with the foam to obtain the natural latex pillow, wherein the natural latex has certain viscosity, and colloid particles can intensively collide with each other in the stirring process and are easily adhered together to form an agglomerate.
Further, the vegetable oil acid is one of ursolic acid, pinenut oil acid, tall oil acid or cottonseed oil acid.
Further, the emulsifier is PEG-20 triisostearin, PEG-7 olive oil ester and dicyclodidienyl iron in a volume ratio of 1-3.
Further, the stirring speed in the S2 is 200-500 rpm.
Further, the injection gas in S3 is one of oxygen, nitrogen, and helium.
Further, the speed of injecting the gas in the S3 is 1 to 3m 3 /min。
Further, the foaming temperature in the S3 is 40-60 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the natural latex pillow has excellent performance, and can reduce the PSQI value, namely shorten the time of falling asleep, prolong the sleep time, reduce sleep disorder and effectively improve the sleep quality.
The preparation method comprises the steps of modifying liquid silica gel, adding fucoidin and glycerin, kneading and banburying in a banbury mixer to enable surface hydroxyl groups to easily react with hydroxyl-containing compounds, modifying the surface of precipitated silica in white carbon black during banburying, modifying hydrophilic silica into hydrophobic silica through surface treatment, and then changing the physicochemical property of the surface of white carbon black when the white carbon black is banburied with silica resin and polyvinyl silicone oil, so that the compatibility between white carbon black particles and silica resin molecules is improved, thereby improving the lipophilicity, dispersibility and compatibility of the liquid silica gel.
Detailed Description
In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.
The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.
The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.
Example 1
A preparation process of a natural latex pillow comprises the following steps: the method comprises the following steps:
s1, preparing modified liquid silica gel: firstly, mixing 5 parts of precipitated white carbon black, 3 parts of fucoidin and 1 part of glycerol, pouring the mixture into an internal mixer to be kneaded and banburied for 1 hour at 120 ℃, then adding 10 parts of silica gel resin and 10 parts of polyvinyl silicone oil into the internal mixer, kneading and banburying the mixture together, and continuously banburying the mixture for 50 minutes at 200 ℃ to obtain modified liquid silica gel;
s2, sequentially adding the natural latex, the dark-acetabulum oleic acid, the emulsifier and the modified liquid silica gel into a stirrer, stirring at 40 ℃ and 200rpm for 12min, and uniformly mixing to obtain a mixed solution A; the emulsifier is PEG-20 triisostearin, PEG-7 olive oil ester and dicyclodidienyl iron with the volume ratio of 1;
s3, adding the mixed solution A into a foaming agent, placing the foaming agent into a foaming disc, and injecting oxygen at the speed of 1m 3 And/min, foaming the material at 40 ℃ for 36h, injecting the obtained foam into a mold, heating, curing and shaping after the mold is filled with the foam, and thus obtaining the natural latex pillow.
Example 2
A preparation process of a natural latex pillow comprises the following steps: the method comprises the following steps:
s1, preparing modified liquid silica gel: taking 15 parts of precipitated white carbon black, 5 parts of fucoidin and 5 parts of glycerol, blending, pouring the mixture into an internal mixer, kneading and banburying for 3 hours at 150 ℃, adding 30 parts of silica gel resin and 26 parts of polyvinyl silicone oil into the internal mixer, kneading and banburying together, and continuously banburying for 80 minutes at 250 ℃ to obtain modified liquid silica gel;
s2, sequentially adding the natural latex, the pine nut oleic acid, the emulsifier and the modified liquid silica gel into a stirrer, stirring for 25min at 80 ℃ and 500rpm, and uniformly mixing to obtain a mixed solution A; the emulsifier is PEG-20 triisostearin, PEG-7 olive oil ester and dicyclodidienyl iron with the volume ratio of 3;
s3, adding the mixed solution A into a foaming agent, placing the mixture in a foaming disc, and injecting oxygen at the rate of 3m 3 And/min, foaming the material at 60 ℃ for 80h, injecting the obtained foam into a mold, heating, curing and shaping after the mold is filled with the foam, and obtaining the natural latex pillow.
Example 3
A preparation process of a natural latex pillow comprises the following steps: the method comprises the following steps:
s1, preparing modified liquid silica gel: firstly, 10 parts of precipitated white carbon black, 4 parts of fucoidin and 3 parts of glycerin are mixed, poured into an internal mixer for kneading and banburying at 130 ℃ for 2 hours, then 20 parts of silica gel resin and 18 parts of polyvinyl silicone oil are added into the internal mixer for kneading and banburying, and banburying is continued at 230 ℃ for 60min to obtain modified liquid silica gel;
s2, sequentially adding the natural latex, the tall oil acid, the emulsifier and the modified liquid silica gel into a stirrer, stirring at 60 ℃ and 350rpm for 18min, and uniformly mixing to obtain a mixed solution A; the emulsifier is PEG-20 triisostearin, PEG-7 olive oil ester and dicyclodidienyl iron with the volume ratio of 2;
s3, adding the mixed solution A into a foaming agent, placing the foaming agent into a foaming disc, and injecting oxygen at the speed of 2m 3 And/min, foaming the material at 50 ℃ for 50h, injecting the obtained foam into a mold, heating, curing and shaping after the mold is filled with the foam, and obtaining the natural latex pillow.
Example 4
A preparation process of a natural latex pillow comprises the following steps: the method comprises the following steps:
s1, preparing modified liquid silica gel: firstly, mixing 5 parts of precipitated white carbon black, 3 parts of fucoidin and 1 part of glycerol, pouring the mixture into an internal mixer to be kneaded and banburied for 1 hour at 120 ℃, then adding 10 parts of silica gel resin and 10 parts of polyvinyl silicone oil into the internal mixer, kneading and banburying the mixture together, and continuously banburying the mixture for 50 minutes at 200 ℃ to obtain modified liquid silica gel;
s2, sequentially adding the natural latex, the tall oil acid, the emulsifier and the modified liquid silica gel into a stirrer, stirring at 60 ℃ and 350rpm for 18min, and uniformly mixing to obtain a mixed solution A; the emulsifier is PEG-20 triisostearin, PEG-7 olive oil ester and dicyclodidienyl iron with the volume ratio of 2;
s3, adding the mixed solution A into a foaming agent, placing the mixture in a foaming disc, and injecting oxygen at the rate of 2m 3 And/min, foaming the material at 50 ℃ for 50h, injecting the obtained foam into a mold, heating, curing and shaping after the mold is filled with the foam, and obtaining the natural latex pillow.
Example 5
A preparation process of a natural latex pillow comprises the following steps: the method comprises the following steps:
s1, preparing modified liquid silica gel: firstly, mixing 15 parts of precipitated white carbon black, 5 parts of fucoidin and 5 parts of glycerol, pouring the mixture into an internal mixer to be kneaded and banburied for 3 hours at the temperature of 150 ℃, then adding 30 parts of silica gel resin and 26 parts of polyvinyl silicone oil into the internal mixer to be kneaded and banburied together, and continuously banburying for 80 minutes at the temperature of 250 ℃ to obtain modified liquid silica gel;
s2, sequentially adding the natural latex, the tall oil acid, the emulsifier and the modified liquid silica gel into a stirrer, stirring at 60 ℃ and 350rpm for 18min, and uniformly mixing to obtain a mixed solution A; the emulsifier is PEG-20 triisostearin, PEG-7 olive oil ester and dicyclodidienyl iron with the volume ratio of 2;
s3, adding the mixed solution A into a foaming agent, placing the foaming agent into a foaming disc, and injecting oxygen at the speed of 2m 3 And/min, foaming the material at 50 ℃ for 50h, injecting the obtained foam into a mold, heating, curing and shaping after the mold is filled with the foam, and thus obtaining the natural latex pillow.
Example 6
A preparation process of a natural latex pillow comprises the following steps: the emulsifier is PEG-20 triisostearin, PEG-7 olive oil ester and dicyclodidienyl iron with the volume ratio of 1.
Example 7
A preparation process of a natural latex pillow comprises the following steps: the stirring rate in S2 was 600rpm, and the other formulation and operation were the same as in example 3.
Example 8
A preparation process of a natural latex pillow comprises the following steps: the velocity of the injected gas in S3 is 5m 3 Min, other formulation and operation were the same as in example 3.
Example 9
A preparation process of a natural latex pillow comprises the following steps: the foaming temperature in S3 is 30 ℃, and other formulas and operations are the same as those in example 3.
Comparative example 1
This comparative example differs from example 3 in that: preparation of modified liquid silica gel: firstly, 3 parts of precipitated white carbon black, 7 parts of fucoidin and 6 parts of glycerin are mixed, the mixture is poured into an internal mixer to be kneaded and banburied for 2 hours at the temperature of 130 ℃, then 40 parts of silica gel resin and 30 parts of polyvinyl silicone oil are added into the internal mixer to be kneaded and banburied together, and the banburying is continued for 60 minutes at the temperature of 260 ℃ to obtain the modified liquid silica gel.
Comparative example 2
This comparative example differs from example 3 in that: the fucoidin in the raw material of the modified liquid silica gel is replaced by the same amount of algal polysaccharide.
Comparative example 3
This comparative example differs from example 3 in that: the kneading and banburying temperature of the modified liquid silica gel raw materials is 170 ℃.
1. Performance testing
The natural latex pillows prepared in examples 1 to 9 and comparative examples 1 to 3 were subjected to mechanical property measurement according to the standard GBT 1689-2014, and the measurement results are shown in the following table 1:
table 1:
as can be seen from table 1 above, the modified liquid silicone rubber has a certain influence on the mechanical properties of the natural latex pillow, and compared with comparative example 1, examples 1 to 9 have different raw material formulas and different modification effects on the liquid silicone rubber, and have a certain difference in mechanical properties, which mainly improves the lipophilicity, dispersibility and compatibility of the liquid silicone rubber; comparing with comparative example 2, the result shows that surface hydroxyl is easy to react with hydroxyl-containing compounds when the fucoidin is mixed, so that precipitated silica in the white carbon black is subjected to surface modification in banburying, and comparing with comparative example 3, the banburying temperature has certain influence on the modification of the liquid silica gel, and at a proper temperature, the thermal motion of silica gel particles promotes the change of the physicochemical property of the surface of the white carbon black, so that the compatibility between the white carbon black particles and silica gel resin molecules is improved; compared with the embodiment 6, the emulsifier in the embodiments 1-5 can reduce the friction among latex particles and can be stably dispersed under stirring in a proper proportion; the greater difference between examples 1-5 and example 7 is tear strength, indicating that a stirring rate greater than 350rpm will cause the latex particles to break under the action of external forces, forming irreversible partial cross-linked structures, resulting in stronger interactions between the particles and a more rapid decrease in flowability; in the examples 1 to 5, compared with the examples 8 and 9, the rate of injecting the gas is too high, which may cause the latex particles to flow anisotropically with the gas, and the foaming temperature has a certain limit on the activity of the latex particles, which has a certain influence on the foaming, thereby affecting the mechanical properties.
2. Pittsburgh sleep quality index PSQI test
Use and statistical methods: the PSQI value was used to assess the quality of sleep for 1 month tested and consisted of 19 self-rated and 5 other rated entries; wherein the 19 th self-scoring item and the 5 other self-scoring items do not participate in scoring, only 18 self-scoring items participating in scoring are introduced, the 18 items form 7 components, each component is scored according to the grade of 0-3, the score of each component is accumulated to be the PSQI total score, the total score range is 0-2 l, and the higher the score is, the worse the sleep quality is. The subject needs 5 to 10 minutes to complete the trial.
Object: 120 test subjects were divided into 12 groups of 10 subjects, each group was randomized between men and women, aged 20-60 years
The latex pillows prepared in examples 1 to 9 and comparative examples 1 to 3 were tested on 120 test subjects, respectively, for 3 months, and the tests were averaged to obtain the values shown in table 2
Table 2:
| PSQI value | |
| Example 1 | 5.2 |
| Example 2 | 5.1 |
| Example 3 | 5.0 |
| Example 4 | 5.2 |
| Example 5 | 5.3 |
| Example 6 | 5.5 |
| Example 7 | 5.7 |
| Example 8 | 6.0 |
| Example 9 | 6.3 |
| Comparative example 1 | 7.5 |
| Comparative example 2 | 7.3 |
| Comparative example 3 | 7.2 |
As shown in the test table 2, the latex pillow can reduce the PSQI value, namely shorten the time of falling asleep, prolong the sleep time, reduce sleep disorder and effectively improve the sleep quality.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A preparation process of a natural latex pillow is characterized by comprising the following steps: the method comprises the following steps:
s1, preparing modified liquid silica gel: firstly, mixing precipitated white carbon black, fucoidin and glycerol, pouring the mixture into an internal mixer to be kneaded and internally mixed for 1 to 3 hours at the temperature of between 120 and 150 ℃, then adding silica gel resin and polyvinyl silicone oil into the internal mixer, and continuously internally mixing for 50 to 80 minutes at the temperature of between 200 and 250 ℃ to obtain modified liquid silica gel, wherein the modified liquid silica gel comprises the following raw materials in parts by weight: 5-15 parts of precipitated white carbon black, 3-5 parts of fucoidin, 1-5 parts of glycerin, 10-30 parts of silica gel resin and 10-26 parts of polyvinyl silicone oil;
s2, sequentially adding the natural latex, the vegetable oleic acid, the emulsifier and the modified liquid silica gel into a stirrer, stirring for 12-25 min at 40-80 ℃, and uniformly mixing to obtain a mixed solution A;
and S3, adding the mixed solution A into a foaming agent, placing the mixture in a foaming tray, injecting gas, foaming the material for 36-80 hours, injecting the obtained foam into a mold, and heating, curing and shaping after the mold is filled with the foam to obtain the natural latex pillow.
2. The process for preparing a natural latex pillow according to claim 1, wherein: the vegetable oil acid is at least one of black-boned oleic acid, pine nut oil acid, tall oil acid or cotton seed oil acid.
3. The process for preparing a natural latex pillow according to claim 1, wherein: the emulsifier is prepared from 1-3 volume ratio of PEG-20 triisostearin, PEG-7 olive oil ester and dicyclodidienyl iron.
4. The process for preparing a natural latex pillow according to claim 1, wherein: and the stirring speed in the S2 is 200-500 rpm.
5. The process for preparing a natural latex pillow according to claim 1, wherein: and the injected gas in the S3 is one of oxygen, nitrogen and helium.
6. The process for preparing a natural latex pillow according to claim 1, wherein: the velocity of the injected gas in the S3 is 1 to 3m 3 /min。
7. The process for preparing a natural latex pillow according to claim 1, wherein: and the foaming temperature in the S3 is 40-60 ℃.
8. A natural latex pillow, characterized in that it is produced by the process for producing a natural latex pillow according to any one of claims 1 to 7.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1171408A (en) * | 1997-06-18 | 1999-03-16 | Sumitomo Rubber Ind Ltd | Production of deproteinized natural rubber latex |
| CN109181045A (en) * | 2018-09-12 | 2019-01-11 | 陈贝妮 | A kind of damping latex mattress and preparation method thereof |
| CN110003541A (en) * | 2019-04-19 | 2019-07-12 | 中国热带农业科学院橡胶研究所 | A kind of low ammonia or the application without ammoniacal latex in foamed latex product |
| CN111117006A (en) * | 2020-01-08 | 2020-05-08 | 三亚南岛乳胶制品有限公司 | Production method of super-thick latex sofa cushion |
| AU2020102627A4 (en) * | 2020-10-07 | 2020-11-26 | Agricultural Products Processing Research Institute，China Academy of Tropical Agricultural Sciences | Latex foaming sponge capable of promoting sleep and preparation method and application thereof |
| CN112280118A (en) * | 2020-10-20 | 2021-01-29 | 山东贝隆新材料科技有限公司 | Foaming material prepared by using eucommia ulmoides latex and natural latex together, method and application |
| CN112442216A (en) * | 2019-09-05 | 2021-03-05 | 北京化工大学 | Oriented high-thermal-conductivity rubber composite material and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10694874B2 (en) * | 2013-03-08 | 2020-06-30 | Sealy Technology, Llc | Latex foam pillow |
-
2021
- 2021-04-25 CN CN202110447370.XA patent/CN113072755B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1171408A (en) * | 1997-06-18 | 1999-03-16 | Sumitomo Rubber Ind Ltd | Production of deproteinized natural rubber latex |
| CN109181045A (en) * | 2018-09-12 | 2019-01-11 | 陈贝妮 | A kind of damping latex mattress and preparation method thereof |
| CN110003541A (en) * | 2019-04-19 | 2019-07-12 | 中国热带农业科学院橡胶研究所 | A kind of low ammonia or the application without ammoniacal latex in foamed latex product |
| CN112442216A (en) * | 2019-09-05 | 2021-03-05 | 北京化工大学 | Oriented high-thermal-conductivity rubber composite material and preparation method thereof |
| CN111117006A (en) * | 2020-01-08 | 2020-05-08 | 三亚南岛乳胶制品有限公司 | Production method of super-thick latex sofa cushion |
| AU2020102627A4 (en) * | 2020-10-07 | 2020-11-26 | Agricultural Products Processing Research Institute，China Academy of Tropical Agricultural Sciences | Latex foaming sponge capable of promoting sleep and preparation method and application thereof |
| CN112280118A (en) * | 2020-10-20 | 2021-01-29 | 山东贝隆新材料科技有限公司 | Foaming material prepared by using eucommia ulmoides latex and natural latex together, method and application |
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