CN111909438A - Multifunctional scented tablet based on medical stone/EVA composite material and preparation method thereof - Google Patents
Multifunctional scented tablet based on medical stone/EVA composite material and preparation method thereof Download PDFInfo
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- CN111909438A CN111909438A CN201910384535.6A CN201910384535A CN111909438A CN 111909438 A CN111909438 A CN 111909438A CN 201910384535 A CN201910384535 A CN 201910384535A CN 111909438 A CN111909438 A CN 111909438A
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- medical stone
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
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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
- C08K9/02—Ingredients treated with inorganic substances
Abstract
The invention discloses a multifunctional fragrant tablet based on medical stone/EVA composite material and a preparation method thereof, relating to a daily fragrant tablet and a preparation technology thereof, and specifically comprising the following steps: the fragrant piece comprises EVA, modified medical stone, surfactant and essence, and the preparation method comprises the following steps: adding surfactant into essence, stirring, adding modified Maifanitum and EVA, oscillating for reaction, drying, and hot pressing to obtain multifunctional fragrant tablet based on Maifanitum/EVA composite material. The obtained scented tablet has the advantages of adjustable shape, multiple functions, good fragrance releasing effect, pollutant adsorption, flame retardance, simple process, low cost, etc.
Description
Technical Field
The invention relates to a daily-use scented tablet and a preparation technology thereof, in particular to a medical stone/EVA composite material multifunctional scented tablet with pollutant adsorption performance and flame retardant effect and a preparation method thereof.
Background
With the continuous improvement of living standard and cultural cultivation of people, higher and higher requirements are put forward to living environment, namely that people want to be spacious, bright and elegant, and want to be full of light fragrance indoors. Thus, the market demand for various perfumed articles is increasing. Especially, a toilet is an important activity space in human life, and many activities such as bathing, washing clothes and the like are basically carried out in the toilet. However, it is undeniable that some bad smell is present to a greater or lesser extent in the bathroom. There is an increasing demand for products that can be used in toilets that both remove odors, freshen air, and produce a pleasant fragrance. Meanwhile, with the continuous expansion of automobile ownership and the continuous increase of service life, people pay more attention to the influence of the environment in the automobile on physical health and mental state. At present, decorative materials of many automobiles can release intolerable pungent odor, are uncomfortable in sense, and can cause harm to human bodies, for example, benzene, toluene, xylene, formaldehyde and the like can cause skin allergy, dizziness, vomiting, leukemia and the like, so that the multifunctional automobile decorative material has wide market prospect for development and production of multifunctional products which can be used in automobiles, can adsorb harmful substances, can generate pleasant fragrance and have certain flame retardant effect.
Although some fragrant products exist in the market at present, most of the fragrant products cover the original odor, and the problems of quick volatilization, short fragrance preservation period, insufficient safety, single performance and the like generally exist.
Disclosure of Invention
In order to solve the problems, the invention provides a medical stone/EVA composite material which has multiple functions of fragrance slow release, pollutant adsorption, flame retardance and the like. The air conditioner can be placed in a vehicle, can also be placed in a central air conditioning device of a hotel, is also suitable for being placed in a living room and a bedroom of a house, has strong water resistance, can be placed in a urinal or a hand basin of a toilet, can absorb peculiar smell, eliminate environmental pollution and release fragrance, and creates a fresh and pleasant elegant environment.
Firstly, the multifunctional fragrant sheet based on the medical stone/EVA composite material provided by the invention comprises EVA, modified medical stone, a surfactant and essence.
The multifunctional scented chip based on the medical stone/EVA composite material comprises the following components in parts by mass: 50-80 parts of EVA, 5-20 parts of modified medical stone, 1-10 parts of surfactant and 10-50 parts of essence.
The EVA comprises one or more of EVA150, EVA180, EVA260, EVA360, EVA460, EVA550 and EVA 2808.
The preparation method of the modified medical stone comprises the following steps: ball milling natural Maifanitum to obtain superfine powder, soaking in nitric acid water solution, stirring, and separating solid product to obtain modified Maifanitum.
The particle size of the superfine powder is 50-150 microns.
The concentration of nitric acid in the nitric acid aqueous solution is 2.0-5.0 mol/L. The stirring treatment time after the dipping is 2-3 h.
The separated solid product is specifically as follows: the obtained product is filtered, washed by deionized water, filtered and dried at 70 ℃. The modified medical stone has enlarged pore canals and increased specific surface area, and is more favorable for adsorption.
The surfactant comprises one or more of sorbitan fatty acid ester (Span series), polysorbate (Tween series), fatty alcohol-polyoxyethylene ether (peregal), Sodium Dodecyl Sulfate (SDS) and polyvinylpyrrolidone (PVP).
The essence comprises fruit essence or flower essence or the mixture of the fruit essence and the flower essence.
The fruit-flavor essence comprises one or more of lemon essence, grape essence, kumquat essence and cinnamon essence; the flower essence comprises one or more than two of rose essence, jasmine essence, osmanthus essence and violet essence; the essence is natural essence or synthetic essence.
Secondly, the invention provides a preparation method of the multifunctional fragrant tablet based on the medical stone/EVA composite material, which comprises the following steps: adding surfactant into essence, stirring, adding modified Maifanitum and EVA, oscillating for reaction, drying, and hot pressing to obtain multifunctional fragrant tablet based on Maifanitum/EVA composite material.
The oscillating reaction is carried out at the temperature of 20-30 ℃ for 30-60 minutes.
The hot pressing treatment is carried out at the temperature of 90-110 ℃ and the pressure of 5-30MP for 10-30 min.
The components are in parts by mass: 50-80 parts of EVA, 5-20 parts of modified medical stone, 1-10 parts of surfactant and 10-50 parts of essence.
The EVA comprises one or more of EVA150, EVA180, EVA260, EVA360, EVA460, EVA550 and EVA 2808.
The preparation method of the modified medical stone comprises the following steps: ball milling natural Maifanitum to obtain superfine powder, soaking in nitric acid water solution, stirring, and separating solid product to obtain modified Maifanitum.
The particle size of the superfine powder is 50-150 microns.
The concentration of nitric acid in the nitric acid aqueous solution is 2.0-5.0 mol/L. The stirring treatment time after the dipping is 2-3 h.
The separated solid product is specifically as follows: the obtained product is filtered, washed by deionized water, filtered and dried at 70 ℃. The modified medical stone has enlarged pore canals and increased specific surface area, and is more favorable for adsorption.
The surfactant comprises one or more of sorbitan fatty acid ester (Span series), polysorbate (Tween series), fatty alcohol-polyoxyethylene ether (peregal), Sodium Dodecyl Sulfate (SDS) and polyvinylpyrrolidone (PVP).
The essence comprises fruit essence or flower essence or the mixture of the fruit essence and the flower essence.
The fruit-flavor essence comprises one or more of lemon essence, grape essence, kumquat essence and cinnamon essence; the flower essence comprises one or more than two of rose essence, jasmine essence, osmanthus essence and violet essence; the essence is natural essence or synthetic essence.
Advantageous effects
(1) The shape can be regulated and controlled: the shape and the size of the incense chip can be designed at will to meet the requirements of different application occasions.
(2) Multi-functionalization: the modified medical stone has small particle size, rich pore structure, large specific surface area and strong surface activity, and not only can endow the material with excellent mechanical property, but also can improve the strength and toughness of the material; and air pollutants, polluted ions in water and harmful microorganisms can be effectively adsorbed and removed, and the freshness of air and the safety and the sanitation of water are ensured. The injection of the modified medical stone endows the medical stone/EVA composite fragrant tablet with excellent comprehensive performance and ultrahigh cost performance.
(3) The fragrance releasing effect is good: the use of the surfactant can obviously improve the interface compatibility between the medical stone and the EVA, not only increase the adsorption quantity of the medical stone/EVA to the essence, but also ensure that the released fragrance is rich and pure; and the release speed of the fragrance is effectively adjusted, so that the fragrance lasts for a long time and is kept for more than 3 months.
(4) Has the flame retardant property: SiO in Chinese medical stone2、Al2O3、MgO、CaO、TiO2The components improve the flame retardant property and the thermal stability of the EVA material, meet the requirements of halogen-free, low-smoke and low-toxicity flame retardants, and are more suitable for being used in automobiles.
(5) The process is simple. The modification method provided by the invention is simple to operate, does not need special equipment and is easier to popularize.
(6) The cost is low. The medical stone and other raw materials used by the invention have wide sources and low price, and the production cost is greatly reduced, so the invention has good market prospect.
Detailed Description
Preparation example 1 preparation of modified medical stone:
ball milling natural Maifanitum to obtain superfine powder (particle diameter of 75 μm), soaking in 5.0mol/L nitric acid aqueous solution, and stirring for 3 hr. The product is filtered, washed by deionized water, filtered and dried at 70 ℃ to obtain the modified medical stone
Example 1 preparation of a multifunctional scented tablet based on a medical stone/EVA composite:
preparing the multifunctional incense tablet of the medical stone/EVA composite material according to the following mass percent:
EVA360：73.3wt％
modified medical stone: 7.3 wt.%
Surfactant Span 60: 1.1 wt.%
And (3) rose essence: 18.3 wt%.
The following components are added according to the proportion.
Weighing a certain mass of rose essence, adding a surfactant Span60 according to a proportion, uniformly stirring, adding modified medical stone and EVA360, carrying out oscillation reaction for 60 minutes at 25 ℃, drying, and forming under the conditions of hot pressing pressure of 10MPa, hot pressing temperature of 110 ℃ and hot pressing time of 30min to obtain the fragrant tablet product. Compared with pure EVA, the medical stone/EVA composite material has the advantages that the adsorption capacity of essence is obviously improved, the adsorption capacity is improved to 1.4 times of that of the pure EVA, meanwhile, the fragrance releasing effect is better than that of a pure EVA product, the fragrance of the prepared medical stone/EVA composite material fragrance sheet is still strong after the medical stone/EVA composite material fragrance sheet is placed at room temperature for 90 days, the releasing rate is 0.55mg/g per day on average, and the fragrant and elegant indoor environment atmosphere is provided.
Example 2 preparation of a multifunctional scented tablet based on a medical stone/EVA composite:
preparing the multifunctional incense tablet of the medical stone/EVA composite material according to the following mass percent:
EVA360：59.4wt％
modified medical stone: 10.6 wt.%
Surfactant laurinol polyoxyethylene ether: 1.0 wt.%
Cinnamon essence: 33.0 wt%.
The following components are added according to the proportion.
Weighing a certain mass of cinnamon essence, adding surfactant lauryl alcohol polyoxyethylene ether according to a proportion, uniformly stirring, adding medical stone and EVA360, carrying out oscillation reaction for 50 minutes at 30 ℃, drying, and forming under the conditions of hot pressing pressure of 20MP, hot pressing temperature of 90 ℃ and hot pressing time of 20min to obtain the fragrant tablet product. The adsorption capacity and the fragrance releasing effect of the medical stone/EVA composite material fragrance piece on the essence are also obviously improved, the medical stone/EVA composite material fragrance piece is placed in a toilet hand washing sink, the releasing rate is 1.50mg/g per day on average, and the effect is not reduced after 90 days. Meanwhile, the medical stone/EVA composite material has obvious adsorption removal effect on phenol, aniline, Pb2+ and Cd2+, and the adsorption capacity can respectively reach 1.6mg/g, 7.9mg/g, 37.6mg/g and 36.8 mg/g. The safety, sanitation and refreshing pleasure of the toilet are kept for a long time.
Example 3 preparation of a multifunctional scented tablet based on a medical stone/EVA composite:
EVA260：50.0wt％，
modified medical stone: 12.5 wt%,
Surfactant (b): polyvinylpyrrolidone 2.5 wt% + sodium dodecyl sulfate 3.8%
Lemon essence: 31.2 wt%.
The following components are added according to the proportion.
Weighing a certain mass of lemon essence, adding surfactant polyvinylpyrrolidone and sodium dodecyl sulfate in proportion, stirring uniformly, adding medical stone and EVA260, carrying out oscillation reaction at 30 ℃ for 60 minutes, drying, and molding under the conditions of hot pressing pressure of 30MP, hot pressing temperature of 110 ℃ and hot pressing time of 10min to obtain the fragrant tablet product. Compared with pure EVA, the medical stone/EVA composite material not only obviously improves the adsorption capacity and the fragrance releasing effect of the essence, but also obviously improves the flame retardant property. The comparative burning test of the medical stone/EVA composite material fragrant piece and the pure EVA fragrant piece with the same mass (5 g) shows that: the pure EVA fragrant sheet can burn for 20-30 seconds after being ignited; the incense piece made of the medical stone/EVA composite material can be extinguished within 3-5 seconds after being ignited, and the heat release rate and the smoke generation rate are both obviously reduced compared with those of a pure EVA product. The medical stone/EVA composite material fragrant sheet shows good flame retardant property, so that the medical stone/EVA composite material fragrant sheet is also suitable for being placed in an automobile, can remove unpleasant pungent smell generated by harmful organic substances, can generate pleasant fragrance, can still release elegant and fresh smell after being placed in the automobile for 90 days, and maintains the physical and mental health of a human body.
Claims (10)
1. A multifunctional fragrant tablet based on medical stone/EVA composite material is characterized in that: comprises EVA, modified medical stone, surfactant and essence.
2. The multifunctional scented tablet based on medical stone/EVA composite material of claim 1, wherein: the multifunctional scented chip based on the medical stone/EVA composite material comprises the following components in parts by mass: 50-80 parts of EVA, 5-20 parts of modified medical stone, 1-10 parts of surfactant and 10-50 parts of essence.
3. The multifunctional scented tablet based on medical stone/EVA composite material of claim 1, wherein: the EVA comprises one or more of EVA150, EVA180, EVA260, EVA360, EVA460, EVA550 and EVA 2808.
4. The multifunctional scented tablet based on medical stone/EVA composite material of claim 1, wherein: the preparation method of the modified medical stone comprises the following steps: ball milling natural Maifanitum to obtain superfine powder, soaking in nitric acid water solution, stirring, and separating solid product to obtain modified Maifanitum.
5. The multifunctional scented tablet based on medical stone/EVA composite material of claim 1, wherein: the particle size of the superfine powder is 50-150 microns.
6. The multifunctional scented tablet based on medical stone/EVA composite material of claim 1, wherein: the concentration of nitric acid in the nitric acid aqueous solution is 2.0-5.0 mol/L. The stirring treatment time after the dipping is 2-3 h.
7. The multifunctional scented tablet based on medical stone/EVA composite material of claim 1, wherein: the surfactant comprises one or more of sorbitan fatty acid ester, polysorbate, fatty alcohol-polyoxyethylene ether, sodium dodecyl sulfate and polyvinylpyrrolidone.
8. A method for preparing the multifunctional fragrant tablet based on the medical stone/EVA composite material of any one of claims 1-7, which is characterized in that: adding surfactant into essence, stirring, adding modified Maifanitum and EVA, oscillating for reaction, drying, and hot pressing to obtain multifunctional fragrant tablet based on Maifanitum/EVA composite material.
9. The method for preparing the multifunctional fragrant tablet based on medical stone/EVA composite material of claim 8, wherein the method comprises the following steps: the oscillating reaction is carried out at the temperature of 20-30 ℃ for 30-60 minutes.
10. The method for preparing the multifunctional fragrant tablet based on medical stone/EVA composite material of claim 8, wherein the method comprises the following steps: the hot pressing treatment is carried out at the temperature of 90-110 ℃ and the pressure of 5-30MP for 10-30 min.
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| CN112889838A (en) * | 2021-01-30 | 2021-06-04 | 哈尔滨工业大学 | Rare earth/ClO2Composite material and preparation method thereof |
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