CN111961301A - Safe and environment-friendly boron-free ultra-light clay and preparation method thereof - Google Patents
Safe and environment-friendly boron-free ultra-light clay and preparation method thereof Download PDFInfo
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- CN111961301A CN111961301A CN202010709039.6A CN202010709039A CN111961301A CN 111961301 A CN111961301 A CN 111961301A CN 202010709039 A CN202010709039 A CN 202010709039A CN 111961301 A CN111961301 A CN 111961301A
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- 239000004927 clay Substances 0.000 title claims abstract description 77
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 23
- 239000003086 colorant Substances 0.000 claims abstract description 21
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 19
- 235000013312 flour Nutrition 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 16
- 239000003292 glue Substances 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 15
- 239000003906 humectant Substances 0.000 claims abstract description 14
- 238000005187 foaming Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 63
- 238000002156 mixing Methods 0.000 claims description 50
- 238000003756 stirring Methods 0.000 claims description 40
- 239000000203 mixture Substances 0.000 claims description 17
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- -1 oleum Olivarum Substances 0.000 claims description 4
- 239000007850 fluorescent dye Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 claims description 2
- 239000012874 anionic emulsifier Substances 0.000 claims description 2
- 239000002537 cosmetic Substances 0.000 claims description 2
- 239000008157 edible vegetable oil Substances 0.000 claims description 2
- 239000003999 initiator Substances 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 claims description 2
- 239000012875 nonionic emulsifier Substances 0.000 claims description 2
- 239000003002 pH adjusting agent Substances 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 229910021538 borax Inorganic materials 0.000 abstract description 8
- 239000004328 sodium tetraborate Substances 0.000 abstract description 8
- 235000010339 sodium tetraborate Nutrition 0.000 abstract description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract description 7
- 239000004327 boric acid Substances 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 abstract description 7
- 239000003431 cross linking reagent Substances 0.000 abstract description 6
- 238000004898 kneading Methods 0.000 abstract description 4
- 238000004132 cross linking Methods 0.000 abstract description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 206010010741 Conjunctivitis Diseases 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 231100000570 acute poisoning Toxicity 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000009982 effect on human Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Classifications
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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
-
- 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
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- 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
- C08J9/0014—Use of organic additives
- C08J9/0042—Use of organic additives containing silicon
-
- 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
-
- 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
- C08J9/0066—Use of inorganic 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- 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
- C08J2329/00—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 at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
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- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2499/00—Characterised by the use of natural macromolecular compounds or of derivatives thereof not provided for in groups C08J2401/00 - C08J2407/00 or C08J2489/00 - C08J2497/00
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5435—Silicon-containing compounds containing oxygen containing oxygen in a ring
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Emergency Medicine (AREA)
- Cosmetics (AREA)
Abstract
The invention discloses a safe, environment-friendly and boron-free ultra-light clay which is prepared from the following raw materials: liquid glue, foaming powder, flour, zinc stearate, paper pulp, fluorescent macromolecular coloring agent, silane coupling agent, water, humectant and pH regulator. Also discloses a preparation method of the clay. The ultralight clay adopts the prepared normal-temperature self-crosslinking fluorescent high-molecular polymer as a coloring agent, is not easy to migrate and has high safety; meanwhile, the ultralight clay prepared by the invention does not select borax and boric acid as cross-linking agents, but adopts silane coupling agents to be cross-linked with hydroxyl in liquid glue polyvinyl alcohol to form a net structure, thereby having good stretchability. Therefore, the ultralight clay prepared by the invention is safe and environment-friendly, has no pungent smell, and has good kneading hand feeling.
Description
Technical Field
The invention relates to the technical field of pigment for handicraft sculptures and art paintings, in particular to safe and environment-friendly boron-free ultralight clay and a preparation method thereof.
Background
The traditional color clay generally takes paraffin, rubber, polyvinyl chloride paste resin and the like as main materials, and simultaneously contains a large amount of plasticizer, such as dibutyl phthalate or dioctyl phthalate, vaseline and the like. The color clay has poor temperature difference adaptability (hard to pinch in winter and easy to stick to hands in summer), and more importantly, the components have certain toxicity, so that the color clay can pollute the environment and cause harm to the body. Therefore, the color clay composed of flour and water is produced, and the color clay has the characteristics of no toxicity, no harm and good hand feeling in the production and use processes. However, the color clay prepared from flour has some defects, such as slow drying speed, hard hand feeling after drying, and cracks on the surface after drying, which cannot be stored for a long time.
In recent years, light clay and ultra-light clay have appeared, which have the characteristics of good moldability, light weight, long storage time and the like, and can cultivate the practical ability of children and develop intelligence. The ultralight clay is prepared by foaming high molecular material foaming powder (vacuum microsphere) and then physically mixing with polyvinyl alcohol, cross-linking agent, glycerin, pigment and other materials according to a certain proportion. However, boric acid is detected in the ultralight clay sold in the market at present, and the boric acid has certain harm to human bodies, such as causing skin irritation, conjunctivitis, bronchitis and even acute poisoning. Patent CN109265887A discloses a method for preparing boron-free ultra-light clay, which uses nano calcium carbonate and CMC to replace traditional boric acid or borax, but when preparing ultra-light clay according to the above patent, the ultra-light clay prepared by the method has poor hand feeling and stretchability. Patent CN101955622A also discloses a clay composition prepared by using PVA as a binder and adding a proper amount of gelling agent (phosphate) and humectant. However, the preparation method of the ultra-light clay is not industrialized, and the ultra-light clay on the market still contains borax or even excessive borax, so that a cross-linking agent for replacing the borax needs to be found urgently.
On the other hand, the current ultralight clay is colored by using small molecular pigments or small molecular coloring agents, while the traditional small molecular coloring agents have some defects, are easy to migrate and easily absorbed by human bodies, and some coloring agents even have potential sensitization and even carcinogenicity. Meanwhile, most of the ultralight clay has bright color in order to attract the eyes of children, but some ultralight clay on the market has dark color.
Therefore, a new ultralight clay is developed, the environmental protection and safety of the ultralight clay are improved, the coloring is good, the kneading hand feeling of the ultralight clay is improved, and the ultralight clay not only has urgent research value, but also has good economic benefit and industrial application potential.
Disclosure of Invention
The invention aims to solve the technical problem of providing the safe and environment-friendly boron-free ultralight clay and the preparation method thereof, and the prepared ultralight clay is safe and environment-friendly, has no pungent smell and has good kneading hand feeling. The ultralight clay adopts the prepared normal-temperature self-crosslinking fluorescent high-molecular polymer as a coloring agent. The fluorescent high molecular polymer has macromolecular functionality, and also has the bright color and light absorption of fluorescent dye. Meanwhile, the fluorescent high molecular polymer has large molecular weight, is difficult to migrate, has high safety, and can be directly discharged without entering cells even if being eaten by mistake. On the other hand, the ultralight clay prepared by the invention does not select borax and boric acid as cross-linking agents, but adopts silane coupling agents to be cross-linked with hydroxyl groups in liquid glue polyvinyl alcohol to form a net structure, so that the ultralight clay has good stretchability.
In order to solve the technical problems, the invention adopts a technical scheme that: the safe and environment-friendly boron-free ultra-light clay comprises the following components in percentage by mass:
in a preferred embodiment of the invention, the liquid glue is selected from commercially available medical grade polyvinyl alcohol liquid glue with molecular weight of 2000-10000, is an extremely safe high molecular organic substance, has no toxicity or side effect on human bodies, and has good compatibility.
In a preferred embodiment of the present invention, the foam powder may be selected from korean imported foam powder or german imported foam powder. The pulp serves as a filler, and the hand feeling of damage can be improved.
In a preferred embodiment of the invention, the flour is hard flour.
In a preferred embodiment of the invention, the zinc stearate is cosmetic grade zinc stearate.
In a preferred embodiment of the present invention, the fluorescent macromolecular colorant is prepared from the following raw materials in percentage by mass:
20-80 parts of acrylate mixture, 0.1-5 parts of fluorescent dye monomer, 1-10 parts of diacetone acrylamide, 1-10 parts of adipic dihydrazide, 0.1-1 part of anionic emulsifier, 0.1-0.3 part of nonionic emulsifier and 0.1-1 part of water-soluble initiator. The specific components are shown in a fluorescent macromolecular colorant prepared by the method disclosed in patent CN 109679376A.
In a preferred embodiment of the invention, the silane coupling agent is any one or a mixture of more than two of KH-540, KH-550, KH-560, KH-570, KH-792, CG-602 and CG-605.
In a preferred embodiment of the present invention, the humectant is: one or more of glycerol, oleum Olivarum, and edible oil.
In a preferred embodiment of the invention, the pH adjusting agent is selected from NaHCO3、Na2CO3Any one of KOH and NaOH。
In order to solve the technical problem, the invention adopts another technical scheme that: the preparation method of the safe and environment-friendly boron-free ultra-light clay comprises the following steps:
s1, mixing the liquid glue, the water and the macromolecular fluorescent colorant in the formula amount to obtain a first mixed material;
s2: mixing the first mixed material with foaming powder and flour in a formula amount to obtain a second mixed material;
s3: mixing the second mixed material with paper pulp and zinc stearate in a formula amount to obtain a third mixed material;
s4: and mixing the third mixed material with a humectant, a pH regulator and a silane coupling agent in the formula amount to obtain the ultralight clay.
In a preferred embodiment of the present invention, the preparation method specifically comprises the following steps:
s1: adding the liquid glue, water and macromolecular fluorescent colorant in the formula amount into a mixer, and mixing for 5-20 min at a stirring speed of 200-600 r/min to obtain a first mixed material;
s2: adding foaming powder and flour in the formula amount into the mixing machine, and mixing the mixture with the first mixed material for 10-30 min at the stirring speed of 200-600 r/min to obtain a second mixed material;
s3: continuously adding paper pulp and zinc stearate in the formula amount into the mixer, and mixing the paper pulp and the zinc stearate with the second mixed material for 10-30 min at the stirring speed of 200-600 r/min to obtain a third mixed material;
s4: continuously adding the humectant, the pH regulator and the silane coupling agent into the mixer, mixing the mixture with the third mixed material at the stirring speed of 200-600 r/min for 10-30 min, heating to 90-110 ℃, and stirring for 60-90 min; obtaining the ultralight clay.
The invention has the beneficial effects that:
(1) according to the invention, the silane coupling agent is used as a cross-linking agent to replace the traditional boric acid or borax, the prepared ultralight clay does not contain boron substances, and the prepared ultralight clay is safe and environment-friendly, has no pungent smell and is good in kneading hand feeling;
(2) the fluorescent high-molecular polymer is used as the coloring agent of the ultralight clay, and is not easy to migrate due to the large molecular weight and high in safety, so that the fluorescent high-molecular polymer can be directly discharged without entering cells even if being eaten by mistake;
(3) the normal-temperature self-crosslinking fluorescent high-molecular polymer adopted by the invention can be crosslinked to form a net structure, the addition of a crosslinking agent can be reduced, and borax or boric acid can be further completely replaced.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
Example 1:
an ultralight clay is prepared from the following raw materials:
the preparation method of the ultralight clay comprises the following steps:
s1: adding the liquid glue, water and the macromolecular fluorescent colorant in the formula amount into a mixer, and mixing for 5min at a stirring speed of 200r/min to obtain a first mixed material;
s2: adding foaming powder and flour in the formula amount into the mixing machine, and mixing the mixture with the first mixed material for 10min at the stirring speed of 200r/min to obtain a second mixed material;
s3: continuously adding paper pulp and zinc stearate in the formula amount into the mixer, and mixing the paper pulp and the zinc stearate with the second mixed material for 10min at the stirring speed of 200r/min to obtain a third mixed material;
s4: continuously adding the humectant, the pH regulator and the silane coupling agent KH-550 into the mixer, mixing with the third mixed material at a stirring speed of 200r/min for 10min, heating to 90 deg.C, and stirring for 60 min; the ultra-light clay 1# is obtained.
Example 2:
an ultralight clay is prepared from the following raw materials:
the preparation method of the ultralight clay comprises the following steps:
s1: adding the liquid glue, the water and the macromolecular fluorescent colorant in the formula amount into a mixer, and mixing for 20min at a stirring speed of 200r/min to obtain a first mixed material;
s2: adding foaming powder and flour in the formula amount into the mixing machine, and mixing the mixture with the first mixed material for 30min at the stirring speed of 200r/min to obtain a second mixed material;
s3: continuously adding paper pulp and zinc stearate in the formula amount into the mixer, and mixing the paper pulp and the zinc stearate with the second mixed material for 30min at the stirring speed of 200r/min to obtain a third mixed material;
s4: continuously adding the humectant, the pH regulator and the silane coupling agent KH-560 into the mixer, mixing with the third mixed material at a stirring speed of 200r/min for 30min, heating to 110 deg.C, and stirring for 90 min; the ultra-light clay 2# is obtained.
Example 3:
an ultralight clay is prepared from the following raw materials:
the preparation method of the ultralight clay comprises the following steps:
s1: adding the liquid glue, water and the macromolecular fluorescent colorant in the formula amount into a mixer, and mixing for 5min at a stirring speed of 600r/min to obtain a first mixed material;
s2: adding foaming powder and flour in the formula amount into the mixing machine, and mixing the mixture with the first mixed material for 10min at the stirring speed of 600r/min to obtain a second mixed material;
s3: continuously adding paper pulp and zinc stearate in the formula amount into the mixer, and mixing the paper pulp and the zinc stearate with the second mixed material for 10min at the stirring speed of 400r/min to obtain a third mixed material;
s4: continuously adding humectant, pH regulator, and silane coupling agent KH-792 into the above mixer, mixing with the third mixture at a stirring speed of 600r/min for 10min, heating to 90 deg.C, and stirring for 60 min; the ultra-light clay 3# is obtained.
Example 4:
an ultralight clay is prepared from the following raw materials:
the preparation method of the ultralight clay comprises the following steps:
s1: adding the liquid glue, water and the macromolecular fluorescent colorant in the formula amount into a mixer, and mixing for 20min at a stirring speed of 600r/min to obtain a first mixed material;
s2: adding foaming powder and flour in the formula amount into the mixing machine, and mixing the mixture with the first mixed material for 30min at the stirring speed of 600r/min to obtain a second mixed material;
s3: continuously adding paper pulp and zinc stearate in the formula amount into the mixing machine, and mixing the paper pulp and the zinc stearate with the second mixed material for 30min at the stirring speed of 600r/min to obtain a third mixed material;
s4: continuously adding the humectant, the pH regulator and the silane coupling agent CG-602 into the mixer, mixing with the third mixed material at a stirring speed of 600r/min for 30min, heating to 110 ℃, and stirring for 90 min; the ultra-light clay No. 4 is obtained.
Example 5:
an ultralight clay is prepared from the following raw materials:
the preparation method of the ultralight clay comprises the following steps:
s1: adding the liquid glue, the water and the macromolecular fluorescent colorant in the formula amount into a mixer, and mixing for 12min at a stirring speed of 400r/min to obtain a first mixed material;
s2: adding foaming powder and flour in the formula amount into the mixing machine, and mixing the mixture with the first mixed material for 20min at the stirring speed of 400r/min to obtain a second mixed material;
s3: continuously adding paper pulp and zinc stearate in the formula amount into the mixer, and mixing the paper pulp and the zinc stearate with the second mixed material for 20min at the stirring speed of 400r/min to obtain a third mixed material;
s4: continuously adding the humectant, the pH regulator and the silane coupling agent CG-605 into the mixer, mixing with the third mixed material at the stirring speed of 400r/min for 20min, heating to 100 ℃, and stirring for 75 min; the ultra-light clay 5# is obtained.
Example 6:
an ultralight clay is prepared from the following raw materials:
the preparation method of the ultralight clay comprises the following steps:
s1: adding the liquid glue, the water and the macromolecular fluorescent colorant in the formula amount into a mixer, and mixing for 12min at a stirring speed of 400r/min to obtain a first mixed material;
s2: adding foaming powder and flour in the formula amount into the mixing machine, and mixing the mixture with the first mixed material for 20min at the stirring speed of 400r/min to obtain a second mixed material;
s3: continuously adding paper pulp and zinc stearate in the formula amount into the mixer, and mixing the paper pulp and the zinc stearate with the second mixed material for 20min at the stirring speed of 400r/min to obtain a third mixed material;
s4: continuously adding humectant, pH regulator, silane coupling agent KH-560 and KH-792 into the above mixer, mixing with the third mixture at stirring speed of 400r/min for 20min, heating to 100 deg.C, and stirring for 75 min; the ultra-light clay No. 6 is obtained.
The performance evaluation method comprises the following steps:
1. drying resistance, cracking test: in all the samples in the examples, 10g of each sample was spread in a 50mm petri dish, and the sample was placed in a 25 ℃ desiccator for 48 hours, followed by comparison with the drying condition. Among them, the very dry is 1, the dry is 2, the semi-wet is 3, and the wet is 4. Wherein the severe cracking is 1, the slight cracking is 2, and the non-cracking is 3.
2. Hand feeling softness test:
at 25 ℃, 50 people are selected to comprehensively judge the hand feeling of the ultralight clay respectively. The hand feeling is excellent and 0, the hand feeling is excellent and 1, the hand feeling is generally 2, and the hand feeling is poor and 3.
3. Hand sticking experiment:
at 25 ℃, 50 people are selected to judge whether the ultralight clay sticks to hands or not. The sticky hand is 1, the slightly sticky hand is 2, and the non-sticky hand is 3.
TABLE 1 results of the above Performance test
| Examples | 1# | 2# | 3# | 4# | 5# | 6# |
| Drying Property | 3 | 3 | 3 | 3 | 3 | 4 |
| Hand feeling | 2 | 1 | 1 | 2 | 2 | 0 |
| Sticky hand | 3 | 3 | 3 | 1 | 2 | 3 |
| Condition of dry cracking | 3 | 2 | 2 | 3 | 2 | 3 |
By comparison, it can be seen that: the ultralight clay prepared in the embodiment 6 of the invention has good hand feeling, is easy to shape, is not sticky to hands and does not crack, and is very suitable for developing the intelligence of babies and helping children to identify colors. Meanwhile, the ultralight clay prepared by the method has bright color and rich color, and is high in safety and free of boron substances.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The safe, environment-friendly and boron-free ultralight clay is characterized by comprising the following components in percentage by mass:
2. the safe, environment-friendly, boron-free and ultra-light clay according to claim 1, wherein the liquid gum is selected from medical grade polyvinyl alcohol liquid gums having a molecular weight of 2000 to 10000.
3. The safe, environment-friendly, boron-free and ultra-light clay as claimed in claim 1, wherein the flour is strong flour.
4. The safe, environmentally friendly boron-free ultralight clay according to claim 1, wherein the zinc stearate is cosmetic grade zinc stearate.
5. The safe, environment-friendly and boron-free ultra-light clay according to claim 1, wherein the fluorescent macromolecular colorant is prepared from the following raw materials in percentage by mass:
20-80 parts of acrylate mixture, 0.1-5 parts of fluorescent dye monomer, 1-10 parts of diacetone acrylamide, 1-10 parts of adipic dihydrazide, 0.1-1 part of anionic emulsifier, 0.1-0.3 part of nonionic emulsifier and 0.1-1 part of water-soluble initiator.
6. The safe, environment-friendly and boron-free ultra-light clay according to claim 1, wherein the silane coupling agent is any one or a mixture of more than two of KH-540, KH-550, KH-560, KH-570, KH-792, CG-602 and CG-605.
7. The safe, environmentally friendly, boron-free ultralight clay according to claim 1, wherein the humectant is: one or more of glycerol, oleum Olivarum, and edible oil.
8. The safe, environmentally friendly boron-free ultralight clay according to claim 1, wherein the pH adjusting agent is selected from NaHCO3、Na2CO3Any one of KOH and NaOH.
9. A preparation method of safe, environment-friendly and boron-free ultralight clay is characterized by comprising the following steps:
s1, mixing the liquid glue, the water and the macromolecular fluorescent colorant in the formula amount to obtain a first mixed material;
s2: mixing the first mixed material with foaming powder and flour in a formula amount to obtain a second mixed material;
s3: mixing the second mixed material with paper pulp and zinc stearate in a formula amount to obtain a third mixed material;
s4: and mixing the third mixed material with a humectant, a pH regulator and a silane coupling agent in the formula amount to obtain the ultralight clay.
10. The preparation method of the safe, environment-friendly, boron-free and ultra-light clay according to claim 9, which is characterized by comprising the following steps:
s1: adding the liquid glue, water and macromolecular fluorescent colorant in the formula amount into a mixer, and mixing for 5-20 min at a stirring speed of 200-600 r/min to obtain a first mixed material;
s2: adding foaming powder and flour in the formula amount into the mixing machine, and mixing the mixture with the first mixed material for 10-30 min at the stirring speed of 200-600 r/min to obtain a second mixed material;
s3: continuously adding paper pulp and zinc stearate in the formula amount into the mixer, and mixing the paper pulp and the zinc stearate with the second mixed material for 10-30 min at the stirring speed of 200-600 r/min to obtain a third mixed material;
s4: continuously adding the humectant, the pH regulator and the silane coupling agent into the mixer, mixing the mixture with the third mixed material at the stirring speed of 200-600 r/min for 10-30 min, heating to 90-110 ℃, and stirring for 60-90 min; obtaining the ultralight clay.
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| CN117844146A (en) * | 2024-01-09 | 2024-04-09 | 东莞市上景电子科技有限公司 | Environment-friendly boron-free ultra-light clay and preparation method thereof |
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