CN109400794B - Synthetic method of resin for leather edge oil - Google Patents
Synthetic method of resin for leather edge oil Download PDFInfo
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- CN109400794B CN109400794B CN201811151050.4A CN201811151050A CN109400794B CN 109400794 B CN109400794 B CN 109400794B CN 201811151050 A CN201811151050 A CN 201811151050A CN 109400794 B CN109400794 B CN 109400794B
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- 239000010985 leather Substances 0.000 title claims abstract description 42
- 239000011347 resin Substances 0.000 title claims abstract description 24
- 229920005989 resin Polymers 0.000 title claims abstract description 24
- 238000010189 synthetic method Methods 0.000 title claims abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 52
- 238000003756 stirring Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000008367 deionised water Substances 0.000 claims abstract description 24
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 24
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 19
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 12
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 12
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 239000000178 monomer Substances 0.000 claims abstract description 12
- 239000003999 initiator Substances 0.000 claims abstract description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical group [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 12
- 239000012874 anionic emulsifier Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 230000002194 synthesizing effect Effects 0.000 claims description 6
- 238000007605 air drying Methods 0.000 abstract description 5
- 239000004925 Acrylic resin Substances 0.000 abstract description 3
- 229920000178 Acrylic resin Polymers 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 241000779819 Syncarpia glomulifera Species 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 210000002469 basement membrane Anatomy 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 235000013871 bee wax Nutrition 0.000 description 1
- 239000012166 beeswax Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229960005150 glycerol Drugs 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229960004592 isopropanol Drugs 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 239000001739 pinus spp. Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- -1 sodium alkyl benzene Chemical class 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- 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
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- 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
- C08F212/00—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 aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
- C08F212/08—Styrene
-
- 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
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- 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
-
- 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
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention provides a synthetic method of resin for leather edge oil, which is characterized by comprising the following steps: s1, adding 20 parts by weight of deionized water and 2.8-8 parts by weight of emulsifier into a flask, and stirring and dissolving for 15 min; then adding 30-42 parts of butyl acrylate, 2-10 parts of methyl methacrylate, 12-18 parts of styrene, 0.3-2 parts of reactive emulsifier SR-3025 and 0.5-1.8 parts of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion; s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.2-0.4 part of initiator, and preserving heat for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue and bright; s3, discharging: cooling to room temperature; filtering the product by a screen and discharging. The acrylic resin emulsion prepared by the invention has the advantages of stability, higher solid content, milky white blue light, moderate viscosity, storage stability of more than 60 days, excellent side oil effect and high fullness after air drying.
Description
Technical Field
The invention relates to a method for synthesizing leather edge oil resin, in particular to a method for synthesizing leather edge oil resin.
Background
The leather edge oil is also called leather edge coating oil or edge sealing agent, and is a colored semi-liquid coating which is widely applied to the edge cutting or edge of leather or synthetic leather products such as shoes, boots, bags, ticket holders, mobile phone covers, waistbands and the like and has the functions of decoration and beauty. According to statistics, the consumption of the leather edge oil in China is increasing at a rate of 5% per year in recent years, the total sale amount in 2010 reaches 25 billion yuan, wherein imported environment-friendly leather edge oil is mainly used for exported leather products, and yellowing, cracking, falling, viscosity and the like inevitably occur after the leather products are used for a period of time regardless of domestic products or imports, so that the use of the products is influenced, and the service life of the products is shortened.
Due to the style of leather products and the particularity of the used parts of the leather edge oil, the differences of materials, thickness, width, glossiness, fullness, surface curvature and the like of the leather edge oil on different products are large, and the proportion of the used area to the total area of the products is small, so that the quality problem of the leather edge oil is solved, and the attention of experts is attracted.
The application number 201710330851.6, entitled "an environmental protection leather edge oil", discloses a leather edge oil formula composed of absolute ethyl alcohol, a leather quick-drying agent, edge oil, a mildew-proof antibacterial agent and essence. Has the characteristics of compact basement membrane, uniform coating, orderliness and the like. However, the quick-drying edge oil is easy to have the defect of pit formation, and the fullness of the product is influenced.
The application number 201711105363.1, entitled "a high-performance environment-friendly leather edge oil", discloses a leather edge oil formula consisting of N-methylol acrylamide, acrylic resin, sodium alkyl benzene sulfonate, beeswax, rosin soap, alcohol ether phosphate monoester, turpentine, glycerol, isopropanol and xanthan gum. Has the advantages of convenient use, strong applicability, environmental protection and no composition which is harmful to human body. Generally used for rare leather products, and can not meet the cost requirement of common leather products.
At present, no relevant report on improving the fullness of the skin edge oil is found. In view of the above, a need exists for a method for synthesizing a high fullness resin for leather edge fat.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method for synthesizing high-fullness resin for leather edge oil.
The high fullness of the high fullness resin provided by the present invention for leather edge fat is relative to the leather edge fat of the prior art.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 2.8-8 parts by weight of emulsifier into a flask, and stirring and dissolving for 15 min; then adding 30-42 parts of butyl acrylate, 2-10 parts of methyl methacrylate, 12-18 parts of styrene, 0.3-2 parts of reactive emulsifier SR-3025 and 0.5-1.8 parts of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.2-0.4 part of initiator, and preserving heat for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
Preferably, the initiator is ammonium persulfate.
Preferably, the emulsifier is an EPA1963 anionic emulsifier.
Preferably, after the emulsion is blue in step S2, the pre-emulsion and ammonium persulfate are accelerated.
The invention has the beneficial effects that:
the acrylic resin emulsion prepared by the invention has the advantages of stability, higher solid content, milky white blue light, moderate viscosity, storage stability of more than 60 days, excellent side oil effect and high fullness after air drying.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example 1
A synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 5 parts by weight of EPA1963 anionic emulsifier into a flask, and stirring to dissolve for 15 min; then adding 31 parts of butyl acrylate, 3 parts of methyl methacrylate, 18 parts of styrene, 0.3 part of reactive emulsifier SR-3025 and 0.8 part of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.25 part of ammonium persulfate, and preserving the temperature for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
Example 2
A synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 5 parts by weight of EPA1963 anionic emulsifier into a flask, and stirring to dissolve for 15 min; then adding 31 parts of butyl acrylate, 3 parts of methyl methacrylate, 18 parts of styrene, 0.6 part of reactive emulsifier SR-3025 and 0.8 part of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.25 part of ammonium persulfate, and preserving the temperature for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
Example 3
A synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 5 parts by weight of EPA1963 anionic emulsifier into a flask, and stirring to dissolve for 15 min; then adding 31 parts of butyl acrylate, 3 parts of methyl methacrylate, 18 parts of styrene, 1 part of reactive emulsifier SR-3025 and 0.8 part of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.25 part of ammonium persulfate, and preserving the temperature for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
Example 4
A synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 5 parts by weight of EPA1963 anionic emulsifier into a flask, and stirring to dissolve for 15 min; then adding 31 parts of butyl acrylate, 3 parts of methyl methacrylate, 18 parts of styrene, 1.5 parts of reactive emulsifier SR-3025 and 0.8 part of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.25 part of ammonium persulfate, and preserving the temperature for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
Example 5
A synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 5 parts by weight of EPA1963 anionic emulsifier into a flask, and stirring to dissolve for 15 min; then adding 31 parts of butyl acrylate, 3 parts of methyl methacrylate, 18 parts of styrene, 2.0 parts of reactive emulsifier SR-3025 and 0.8 part of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.25 part of ammonium persulfate, and preserving the temperature for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
Example 6
A synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 5 parts by weight of EPA1963 anionic emulsifier into a flask, and stirring to dissolve for 15 min; then adding 31 parts of butyl acrylate, 3 parts of methyl methacrylate, 18 parts of styrene, 2.8 parts of reactive emulsifier SR-3025 and 0.8 part of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.25 part of ammonium persulfate, and preserving the temperature for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
Example 7
A synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 2.8 parts by weight of sodium dodecyl benzene sulfonate emulsifier into a flask, and stirring and dissolving for 15 min; then adding 30 parts of butyl acrylate, 2 parts of methyl methacrylate, 12 parts of styrene, 2 parts of reactive emulsifier SR-3025 and 0.5 part of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.25 part of ammonium persulfate, and preserving the temperature for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
Example 8
A synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 8 parts by weight of EPA1963 anionic emulsifier into a flask, and stirring to dissolve for 15 min; then adding a mixed monomer of 42 parts of butyl acrylate, 10 parts of methyl methacrylate, 18 parts of styrene, 2 parts of a reactive emulsifier SR-3025 and 1.8 parts of acrylic acid, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.25 part of potassium persulfate, and preserving the temperature for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
Comparative example 1
A synthetic method of resin for leather edge oil comprises the following steps:
s1, adding 20 parts by weight of deionized water and 5 parts by weight of EPA1963 anionic emulsifier into a flask, and stirring to dissolve for 15 min; then adding a mixed monomer of 15 parts of butyl acrylate, 11 parts of methyl methacrylate, 8 parts of styrene and 0.8 part of acrylic acid, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.25 part of ammonium persulfate, and preserving the temperature for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
The resins of examples 1-8 and comparative example 1 were formulated in the formulation of Table 1 to prepare a fringed oil.
Surface-leather edge oil process formula
And (3) performing fullness test on the fur edge oil, preparing a coating with a certain thickness on a fur edge oil sample by using a film former, recording the thickness of a wet film by h1, completely drying the coating, measuring the thickness of a dry film by h2, recording the proportion X of the dry film to the wet film as h2/h1, wherein the larger the X is, the better the fullness of the edge oil is. The test results are shown in table 2.
TABLE 2 Dry film thickness to Wet film thickness ratio of edge oil coatings
The resins of examples 1-8 and comparative example 1 were used for edge oiling according to the following procedure and for parallel comparison of the same skins to compare their fullness.
The process flow comprises the following steps: preparing edge oil → oiling for ink fountain → natural air drying → secondary oiling → natural air drying → tertiary oiling → natural air drying → finished product, grading the fullness of finished product according to table 2, and the specific test result is shown in table 1:
TABLE 1 resin fullness test results
| Sample (I) | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Example 8 | Comparative example |
| Fullness degree | 3 | 4 | 4 | 5 | 5 | 5 | 4 | 4 | 2 |
TABLE 2 leather edge oil product fullness rating Specification
| Rank of | Description of ratings |
| 1 | The film thickness is too low, even the substrate is exposed |
| 2 | Poor film-forming fullness and severe sag in the middle |
| 3 | The film has a general film-forming fullness and obvious dents in the middle |
| 4 | The film formed is basically full and has slight dent in the middle |
| 5 | The film is full and smooth without dents |
The results show that the sample added with the reactive emulsifier SR-3025 significantly improves the fullness of the skin oil, the EPA1963 anionic emulsifier is added to contribute to the fullness of the skin oil more than the sodium dodecylbenzenesulfonate emulsifier, and the ammonium persulfate is selected as the initiator to contribute to some extent to the fullness of the skin oil.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (3)
1. A synthetic method of resin for leather edge oil is characterized by comprising the following steps:
s1, adding 20 parts by weight of deionized water and 2.8-8 parts by weight of emulsifier into a flask, and stirring and dissolving for 15 min; then adding 30-42 parts of butyl acrylate, 2-10 parts of methyl methacrylate, 12-18 parts of styrene, 0.6-2 parts of reactive emulsifier SR-3025 and 0.5-1.8 parts of acrylic acid mixed monomer, and stirring for 20min to obtain a pre-emulsion;
s2, placing a four-neck flask into which 35 parts by weight of deionized water is added in a constant-temperature water bath, stirring at a constant speed, and heating to 80 ℃; synchronously dropwise adding the pre-emulsion obtained in the step S1 and 0.2-0.4 part of initiator, and preserving heat for 40min at 78-80 ℃ after dropwise adding the emulsion when the emulsion is blue;
s3, discharging: cooling to room temperature; filtering the product by a screen and discharging.
2. The method for synthesizing resin for leather edge fat as claimed in claim 1, wherein the initiator is ammonium persulfate.
3. The method for synthesizing resin for leather edge oil as claimed in claim 1, wherein the emulsifier is EPA1963 anionic emulsifier.
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| CN110330587B (en) * | 2019-08-02 | 2021-03-30 | 山西省应用化学研究所(有限公司) | Acrylic emulsion with wide particle size distribution and preparation method thereof |
| CN111040071A (en) * | 2019-12-26 | 2020-04-21 | 南京瑞固聚合物有限公司 | Acrylic polymer with large particle size and wide particle size distribution and preparation method thereof |
| CN113461876B (en) * | 2021-08-19 | 2023-06-30 | 广州海豚新材料有限公司 | Preparation method of organosilicon modified acrylic emulsion for leather edge oil and leather edge oil |
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