CN114015087A - High-elasticity rubber and plastic gloves containing magnetic microcapsules and preparation method thereof - Google Patents
High-elasticity rubber and plastic gloves containing magnetic microcapsules and preparation method thereof Download PDFInfo
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- CN114015087A CN114015087A CN202111355540.8A CN202111355540A CN114015087A CN 114015087 A CN114015087 A CN 114015087A CN 202111355540 A CN202111355540 A CN 202111355540A CN 114015087 A CN114015087 A CN 114015087A
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- 239000003094 microcapsule Substances 0.000 title claims abstract description 47
- 229920003023 plastic Polymers 0.000 title claims abstract description 23
- 239000004033 plastic Substances 0.000 title claims abstract description 23
- 229920001971 elastomer Polymers 0.000 title claims abstract description 8
- 239000005060 rubber Substances 0.000 title claims abstract description 8
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000006249 magnetic particle Substances 0.000 claims abstract description 50
- 238000004073 vulcanization Methods 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000004816 latex Substances 0.000 claims abstract description 17
- 229920000126 latex Polymers 0.000 claims abstract description 17
- 239000011159 matrix material Substances 0.000 claims abstract description 17
- 239000004094 surface-active agent Substances 0.000 claims abstract description 17
- 239000000839 emulsion Substances 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000007864 aqueous solution Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 20
- 239000008367 deionised water Substances 0.000 claims description 17
- 229910021641 deionized water Inorganic materials 0.000 claims description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 12
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 12
- 239000001506 calcium phosphate Substances 0.000 claims description 12
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 12
- 235000011010 calcium phosphates Nutrition 0.000 claims description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 12
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 12
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 10
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 10
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 10
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 10
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 8
- 235000011152 sodium sulphate Nutrition 0.000 claims description 8
- 229920000459 Nitrile rubber Polymers 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 125000005907 alkyl ester group Chemical group 0.000 claims description 5
- 239000012990 dithiocarbamate Substances 0.000 claims description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 3
- 244000043261 Hevea brasiliensis Species 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 claims description 2
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 claims description 2
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 claims description 2
- 229920005549 butyl rubber Polymers 0.000 claims description 2
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 claims description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- NQNBVCBUOCNRFZ-UHFFFAOYSA-N nickel ferrite Chemical compound [Ni]=O.O=[Fe]O[Fe]=O NQNBVCBUOCNRFZ-UHFFFAOYSA-N 0.000 claims description 2
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 2
- 229960002447 thiram Drugs 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- 238000005406 washing Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 6
- 239000012153 distilled water Substances 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 229910002548 FeFe Inorganic materials 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 150000004659 dithiocarbamates Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910001938 gadolinium oxide Inorganic materials 0.000 description 1
- 229940075613 gadolinium oxide Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- C08J5/02—Direct processing of dispersions, e.g. latex, to articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/14—Polymerisation; cross-linking
-
- 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
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/02—Copolymers with acrylonitrile
- C08J2309/04—Latex
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
-
- 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
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- 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
- C08K9/10—Encapsulated ingredients
Abstract
The invention relates to a high-elasticity rubber and plastic glove containing magnetic microcapsules and a preparation method thereof, belonging to the technical field of gloves, wherein the glove comprises the following raw materials in parts by weight: 100-120 parts of latex matrix, 0.05-0.07 part of vulcanizing agent, 0.2-0.4 part of surfactant, 1-2.5 parts of vulcanization accelerator and 50-60 parts of magnetic microcapsule; the preparation method comprises the following steps: mixing a latex matrix, a vulcanizing agent, a surfactant and a vulcanization accelerator, then adding a magnetic microcapsule, and adjusting the pH value in the mixing process to obtain an emulsion; and (3) immersing the glove model into the emulsion, and drying and vulcanizing to obtain a finished product. The magnetic microcapsule is prepared by coating the magnetic particles, so that the sensitivity of the magnetic particles is improved, the raw materials are easy to mix, and the modified finished product has better mechanical property than the unmodified finished product.
Description
Technical Field
The invention belongs to the technical field of gloves, and particularly relates to a high-elasticity rubber-plastic glove containing magnetic microcapsules and a preparation method thereof.
Background
Gloves made of rubber or resin are widely used in various industries such as food industry, electronic parts manufacturing industry or pharmaceutical industry, and in medical use and the like. In use, problems can arise if the glove is damaged such that small pieces of the glove are formed, which pieces are then mixed into the product or into the packaging.
Most gloves are made by incorporating a proportion of the magnetic material present throughout the product. The size and concentration of the magnetic material is intended to provide a uniform amount of material throughout the glove, thereby attempting to ensure that all parts of the glove are potentially detectable by the detector.
However, a problem with the above gloves includes the fact that detection is not always the size of the glove pieces that may need to be relatively large to enable them to be detected. This may be due to relatively poor magnetic properties (e.g. low saturation magnetization and/or high coercivity) in the gloves involved, or problems with dispersion uniformity.
Disclosure of Invention
In order to solve the technical problems mentioned in the background technology, the invention provides a high-elasticity rubber-plastic glove containing magnetic microcapsules and a preparation method thereof.
The purpose of the invention can be realized by the following technical scheme:
a high-elastic rubber and plastic glove containing magnetic microcapsules comprises the following raw materials in parts by weight: 100-120 parts of latex matrix, 0.05-0.07 part of vulcanizing agent, 0.2-0.4 part of surfactant, 1-2.5 parts of vulcanization accelerator and 50-60 parts of magnetic microcapsule;
further, the magnetic microcapsule is prepared by the following steps:
mixing deionized water, calcium phosphate, sodium sulfate, sodium dodecyl sulfate aqueous solution and polyvinyl alcohol aqueous solution, stirring for 10min, then adding benzoyl peroxide, modified magnetic particles and styrene, stirring for 10min at 20 ℃, then heating to 80-82 ℃, stirring for reaction for 60-70min, then filtering, washing by distilled water and ethanol in sequence, and drying to constant weight at 45 ℃ after washing is finished to obtain the magnetic microcapsule. Styrene and the modified magnetic particles react under the initiation effect of benzoyl peroxide, and are polymerized on the surfaces of the modified magnetic particles to coat the magnetic particles, so that the oxidation of the surfaces of the magnetic particles is prevented, and the sensitivity of the magnetic particles is improved.
Further, the dosage ratio of the deionized water, the calcium phosphate, the sodium sulfate, the sodium dodecyl sulfate aqueous solution and the polyvinyl alcohol aqueous solution is 80 mL: 0.14 g: 0.3 g: 10mL of: 10 mL; the mass fraction of the sodium dodecyl sulfate aqueous solution is 5%, the mass fraction of the polyvinyl alcohol aqueous solution is 4%, and the mass ratio of the calcium phosphate, the benzoyl peroxide, the modified magnetic particles and the styrene is 0.14: 0.24: 15: 20.
further, the modified magnetic particles are prepared by the following steps:
mixing magnetic particles and deionized water, heating to 80 ℃ while stirring, adjusting the pH value to 3-4 by using a sulfuric acid solution, then adding vinyltriethoxysilane, stirring for reaction for 90-100min, washing by using distilled water and ethanol in sequence after the reaction is finished, and drying to constant weight at 100 ℃ after the washing is finished to obtain the modified magnetic particles. Hydroxyl contained on the surface of the magnetic particles reacts with the vinyltriethoxysilane to be modified, so that the hydrophobic property is improved, on one hand, the hydrophobic property is improved, the mixing effect is improved, and on the other hand, the subsequent reaction is facilitated to participate.
Further, the concentration of the sulfuric acid solution is 0.1mol/L, and the dosage ratio of the magnetic particles to the deionized water is 1 g: 2 mL; the amount of vinyltriethoxysilane used is 4-5% of the mass of the magnetic particles.
Further, the magnetic particles are nickel ferrite, manganese ferrite, maghemite, magnetite (FeFe)3+ 2O4) Manganese-zinc ferrite (Mn. ZnFe)2O4) Nickel zinc ferrite (Ni. ZnFe)2O4) One kind of (1).
Further, the latex matrix is one of nitrile rubber, natural rubber and butyl rubber; the vulcanizing agent is one of tert-butyl hydroperoxide and di-tert-butyl peroxide; the surfactant is polyethylene glycol alkyl ester; the vulcanization accelerator is one of dithiocarbamate and thiuram.
A preparation method of high-elastic rubber and plastic gloves containing magnetic microcapsules comprises the following steps:
mixing a latex matrix, a vulcanizing agent, a surfactant and a vulcanization accelerator according to the component proportion, then adding a magnetic microcapsule, and adjusting the pH value to 9-11 in the mixing process to obtain an emulsion;
a glove form in the shape of a hand made of wood, metal or ceramic is dipped into an emulsion so that the emulsion adheres to the surface of the glove form, and then dried and vulcanized to obtain a high elastic rubber-plastic glove containing magnetic microcapsules.
Further, the drying temperature is 80-140 ℃; the vulcanizing temperature is 120-130 ℃, and the vulcanizing time is 20-30 min.
Further, the process of adjusting the pH is performed by adding deionized water, ammonia water, and a potassium hydroxide solution.
The invention has the beneficial effects that:
the oxidation of the surface of the magnetic particle, passivation and sensitivity influence, and the hydroxyl contained on the surface of the magnetic particle is utilized to react with the vinyltriethoxysilane in the invention, so that on one hand, the hydrophobic property and the mixing effect are improved, and on the other hand, the subsequent reaction is facilitated to participate. Styrene and the modified magnetic particles react under the initiation action of benzoyl peroxide, and are polymerized on the surfaces of the modified magnetic particles to coat the magnetic particles, so that the oxidation of the surfaces of the magnetic particles is prevented, the sensitivity of the magnetic particles is improved, meanwhile, the magnetic microcapsules obtained after coating are easy to mix with raw materials and are uniformly dispersed, and the modified finished product has better mechanical properties than unmodified finished products.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Preparing modified magnetic particles:
mixing magnetic particles and deionized water, heating to 80 ℃ while stirring, adjusting the pH value to 3 by using a sulfuric acid solution, then adding vinyltriethoxysilane, stirring for reacting for 90min, washing by using distilled water and ethanol in sequence after the reaction is finished, and drying to constant weight at 100 ℃ after the washing is finished to obtain the modified magnetic particles.
Wherein the concentration of the sulfuric acid solution is 0.1mol/L, and the dosage ratio of the magnetic particles to the deionized water is 1 g: 2 mL; the amount of vinyltriethoxysilane used is 4% of the mass of the magnetic particles. The magnetic particles being magnetite (FeFe)3+ 2O4)。
Example 2
Preparing modified magnetic particles:
mixing magnetic particles and deionized water, heating to 80 ℃ while stirring, adjusting the pH value to 4 by using a sulfuric acid solution, then adding vinyltriethoxysilane, stirring for reaction for 100min, washing by using distilled water and ethanol in sequence after the reaction is finished, and drying to constant weight at 100 ℃ after the washing is finished to obtain the modified magnetic particles.
Wherein the concentration of the sulfuric acid solution is 0.1mol/L, and the dosage ratio of the magnetic particles to the deionized water is 1 g: 2 mL; the amount of vinyltriethoxysilane used is 5% of the mass of the magnetic particles. The magnetic particles being magnetite (FeFe)3+ 2O4)。
Example 3
Preparing magnetic microcapsules:
mixing deionized water, calcium phosphate, sodium sulfate, sodium dodecyl sulfate aqueous solution and polyvinyl alcohol aqueous solution, stirring for 10min, then adding benzoyl peroxide, modified magnetic particles and styrene, stirring for 10min at 20 ℃, then heating to 80 ℃, stirring for reaction for 70min, then filtering, washing by distilled water and ethanol in sequence, and drying to constant weight at 45 ℃ after washing is finished to obtain the magnetic microcapsule.
Wherein the dosage ratio of the deionized water, the calcium phosphate, the sodium sulfate, the sodium dodecyl sulfate aqueous solution and the polyvinyl alcohol aqueous solution is 80 mL: 0.14 g: 0.3 g: 10mL of: 10 mL; the mass fraction of the sodium dodecyl sulfate aqueous solution is 5%, the mass fraction of the polyvinyl alcohol aqueous solution is 4%, and the mass ratio of the calcium phosphate, the benzoyl peroxide, the modified magnetic particles and the styrene is 0.14: 0.24: 15: 20; the modified magnetic particles were prepared as in example 2.
Example 4
Preparing magnetic microcapsules:
mixing deionized water, calcium phosphate, sodium sulfate, sodium dodecyl sulfate aqueous solution and polyvinyl alcohol aqueous solution, stirring for 10min, then adding benzoyl peroxide, modified magnetic particles and styrene, stirring for 10min at 20 ℃, then heating to 82 ℃, stirring for reaction for 60min, then filtering, washing by distilled water and ethanol in sequence, and drying to constant weight at 45 ℃ after washing is finished to obtain the magnetic microcapsule.
Wherein the dosage ratio of the deionized water, the calcium phosphate, the sodium sulfate, the sodium dodecyl sulfate aqueous solution and the polyvinyl alcohol aqueous solution is 80 mL: 0.14 g: 0.3 g: 10mL of: 10 mL; the mass fraction of the sodium dodecyl sulfate aqueous solution is 5%, the mass fraction of the polyvinyl alcohol aqueous solution is 4%, and the mass ratio of the calcium phosphate, the benzoyl peroxide, the modified magnetic particles and the styrene is 0.14: 0.24: 15: 20; the modified magnetic particles were prepared as in example 2.
Example 5
Preparing a high-elastic rubber-plastic glove containing magnetic microcapsules:
mixing a latex matrix, a vulcanizing agent, a surfactant and a vulcanization accelerator according to a component ratio, then adding a magnetic microcapsule, and adjusting the pH value to 9 by using ammonia water in the mixing process to obtain an emulsion;
a glove mold made of ceramic and having a hand shape is dipped into the emulsion so that the emulsion adheres to the surface of the glove mold, and then dried and vulcanized to obtain a highly elastic rubber-plastic glove containing magnetic microcapsules.
Wherein the drying temperature is 80 ℃; the vulcanization temperature is 120 ℃, and the vulcanization time is 20 min. The weight portions of the raw materials are as follows: 100 parts of latex matrix, 0.05 part of vulcanizing agent, 0.2 part of surfactant, 1 part of vulcanization accelerator and 50 parts of magnetic microcapsule; the latex matrix is nitrile butadiene rubber; the vulcanizing agent is tert-butyl hydroperoxide; the surfactant is polyethylene glycol alkyl ester; the vulcanization accelerator is dithiocarbamate.
Example 6
Preparing a high-elastic rubber-plastic glove containing magnetic microcapsules:
mixing a latex matrix, a vulcanizing agent, a surfactant and a vulcanization accelerator according to a component ratio, then adding a magnetic microcapsule, and adjusting the pH value to 10 by using ammonia water in the mixing process to obtain an emulsion;
a glove mold made of ceramic and having a hand shape is dipped into the emulsion so that the emulsion adheres to the surface of the glove mold, and then dried and vulcanized to obtain a highly elastic rubber-plastic glove containing magnetic microcapsules.
Wherein the drying temperature is 100 ℃; the vulcanization temperature is 125 ℃, and the vulcanization time is 25 min. The weight portions of the raw materials are as follows: 110 parts of latex matrix, 0.06 part of vulcanizing agent, 0.3 part of surfactant, 2 parts of vulcanization accelerator and 55 parts of magnetic microcapsule; the latex matrix is nitrile butadiene rubber; the vulcanizing agent is tert-butyl hydroperoxide; the surfactant is polyethylene glycol alkyl ester; the vulcanization accelerator is dithiocarbamate.
Example 7
Preparing a high-elastic rubber-plastic glove containing magnetic microcapsules:
mixing a latex matrix, a vulcanizing agent, a surfactant and a vulcanization accelerator according to a component ratio, then adding a magnetic microcapsule, and adjusting the pH value to 11 by using ammonia water in the mixing process to obtain an emulsion;
a glove mold made of ceramic and having a hand shape is dipped into the emulsion so that the emulsion adheres to the surface of the glove mold, and then dried and vulcanized to obtain a highly elastic rubber-plastic glove containing magnetic microcapsules.
Wherein the drying temperature is 140 ℃; the vulcanization temperature is 130 ℃ and the vulcanization time is 30 min. The weight portions of the raw materials are as follows: 120 parts of latex matrix, 0.07 part of vulcanizing agent, 0.4 part of surfactant, 2.5 parts of vulcanization accelerator and 60 parts of magnetic microcapsule; the latex matrix is nitrile butadiene rubber; the vulcanizing agent is tert-butyl hydroperoxide; the surfactant is polyethylene glycol alkyl ester; the vulcanization accelerator is dithiocarbamate.
Comparative example 1
In comparison with example 6, the magnetic microcapsules are exchanged for magnetite (FeFe)3+ 2O4) The other raw materials and the preparation process are kept unchanged.
Comparative example 2
Compared with the example 6, the magnetic microcapsule is changed into the modified magnetic particle prepared in the example 2, and the rest raw materials and the preparation process are kept unchanged.
The samples prepared in examples 5 to 7 and comparative examples 1 to 2 were tested, the samples prepared in examples 5 to 7 and comparative examples 1 to 2 had a thickness of 0.09 mm. + -. 0.002mm, and the tensile strength, and the saturation magnetic flux density of the glove could be measured using a Vibrating Sample Magnetometer (VSM) using Ni (nickel) or Gd2O3 (gadolinium oxide) magnetization calibration at a measurement field of 10 kOe.
The test results are shown in table 1 below:
TABLE 1
| Tensile strength/MPa | Elongation/percent | Minimum detectable volume/mm3 | |
| Example 5 | 13.8 | 482 | 0.7 |
| Example 6 | 13.9 | 485 | 0.7 |
| Example 7 | 13.7 | 481 | 0.7 |
| Comparative example 1 | 11.5 | 360 | 25 |
| Comparative example 2 | 12.4 | 392 | 13 |
As can be seen from Table 1, the gloves made by the present invention have good mechanical properties and are easily detected.
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 foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (8)
1. The high-elasticity rubber and plastic gloves containing the magnetic microcapsules are characterized by comprising the following raw materials in parts by weight: 100-120 parts of latex matrix, 0.05-0.07 part of vulcanizing agent, 0.2-0.4 part of surfactant, 1-2.5 parts of vulcanization accelerator and 50-60 parts of magnetic microcapsule;
the magnetic microcapsule is prepared by the following steps:
mixing deionized water, calcium phosphate, sodium sulfate, sodium dodecyl sulfate aqueous solution and polyvinyl alcohol aqueous solution, stirring for 10min, then adding benzoyl peroxide, modified magnetic particles and styrene, stirring for 10min at the temperature of 20 ℃, then heating to 80-82 ℃, and stirring and reacting for 60-70min to obtain the magnetic microcapsule.
2. The high-elasticity rubber-plastic glove containing magnetic microcapsules of claim 1, wherein the dosage ratio of the deionized water, the calcium phosphate, the sodium sulfate, the sodium dodecyl sulfate aqueous solution and the polyvinyl alcohol aqueous solution is 80 mL: 0.14 g: 0.3 g: 10mL of: 10 mL; the mass fraction of the sodium dodecyl sulfate aqueous solution is 5%, the mass fraction of the polyvinyl alcohol aqueous solution is 4%, and the mass ratio of the calcium phosphate, the benzoyl peroxide, the modified magnetic particles and the styrene is 0.14: 0.24: 15: 20.
3. the high-elasticity rubber-plastic glove containing magnetic microcapsules of claim 1, wherein the modified magnetic particles are prepared by the following steps:
mixing the magnetic particles with deionized water, heating to 80 ℃ while stirring, adjusting the pH value to 3-4 by using a sulfuric acid solution, then adding vinyl triethoxysilane, and stirring for reacting for 90-100min to obtain the modified magnetic particles.
4. The high-elasticity rubber-plastic gloves containing magnetic microcapsules of claim 3, wherein the concentration of the sulfuric acid solution is 0.1mol/L, and the dosage ratio of the magnetic particles to the deionized water is 1 g: 2 mL; the amount of vinyltriethoxysilane used is 4-5% of the mass of the magnetic particles.
5. The high elastic rubber and plastic glove containing magnetic microcapsules of claim 3, wherein the magnetic particles are one of nickel ferrite, manganese ferrite, maghemite, magnetite, manganese zinc ferrite, and nickel zinc ferrite.
6. The high-elasticity rubber-plastic glove containing the magnetic microcapsules as claimed in claim 1, wherein the latex matrix is one of nitrile rubber, natural rubber and butyl rubber; the vulcanizing agent is one of tert-butyl hydroperoxide and di-tert-butyl peroxide; the surfactant is polyethylene glycol alkyl ester; the vulcanization accelerator is one of dithiocarbamate and thiuram.
7. The method for preparing the high-elasticity rubber-plastic gloves containing the magnetic microcapsules according to claim 1, which is characterized by comprising the following steps of:
mixing a latex matrix, a vulcanizing agent, a surfactant and a vulcanization accelerator, then adding a magnetic microcapsule, and adjusting the pH value to 9-11 in the mixing process to obtain an emulsion;
and (3) immersing the glove model into the emulsion, and then drying and vulcanizing to obtain the high-elasticity rubber-plastic glove containing the magnetic microcapsules.
8. The method for preparing the high-elasticity rubber-plastic gloves containing the magnetic microcapsules according to claim 7, wherein the drying temperature is 80-140 ℃; the vulcanizing temperature is 120-130 ℃, and the vulcanizing time is 20-30 min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114891284A (en) * | 2022-06-06 | 2022-08-12 | 安徽英科医疗用品有限公司 | Fragrant butyronitrile gloves and preparation method thereof |
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| CN104403030A (en) * | 2014-11-06 | 2015-03-11 | 东华大学 | Suspension polymerization preparation method of polystyrene-coated ferriferrous oxide composite particle |
| WO2018095221A1 (en) * | 2016-11-25 | 2018-05-31 | 华南理工大学 | Magnetic rubber reinforced by means of unsaturated carboxylate and preparation method therefor |
| CN112111112A (en) * | 2020-09-15 | 2020-12-22 | 中红普林医疗用品股份有限公司 | High-elasticity rubber and plastic gloves containing magnetic microcapsules and preparation method thereof |
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| CN101862629A (en) * | 2010-06-17 | 2010-10-20 | 西北工业大学 | Method for preparing organic/inorganic composite magnetic microcapsules |
| CN104403030A (en) * | 2014-11-06 | 2015-03-11 | 东华大学 | Suspension polymerization preparation method of polystyrene-coated ferriferrous oxide composite particle |
| WO2018095221A1 (en) * | 2016-11-25 | 2018-05-31 | 华南理工大学 | Magnetic rubber reinforced by means of unsaturated carboxylate and preparation method therefor |
| CN112111112A (en) * | 2020-09-15 | 2020-12-22 | 中红普林医疗用品股份有限公司 | High-elasticity rubber and plastic gloves containing magnetic microcapsules and preparation method thereof |
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| CN114891284A (en) * | 2022-06-06 | 2022-08-12 | 安徽英科医疗用品有限公司 | Fragrant butyronitrile gloves and preparation method thereof |
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