CN115894986A - Six-prevention gloves and preparation method thereof - Google Patents
Six-prevention gloves and preparation method thereof Download PDFInfo
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- CN115894986A CN115894986A CN202211536463.0A CN202211536463A CN115894986A CN 115894986 A CN115894986 A CN 115894986A CN 202211536463 A CN202211536463 A CN 202211536463A CN 115894986 A CN115894986 A CN 115894986A
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Abstract
The invention provides a method for preparing a six-prevention glove, which comprises the following steps: s1, immersing a mould into composite latex, taking out the mould and drying the mould to form a first composite latex layer on the mould; s2, immersing the mould attached with the composite emulsion layer I into radiation-proof latex, taking out and drying to form a radiation-proof middle layer on the mould; and S3, immersing the mold attached with the radiation-proof middle layer into the composite latex, and taking out the mold to be dried so as to form a second composite latex layer on the mold. The invention also provides the gloves prepared by the method. The three-layer glove is manufactured by adopting a three-time dipping forming process, the inner layer and the outer layer are made of composite latex, the three-layer glove has the performances of oil resistance, acid resistance, alkali resistance, seepage prevention and tearing prevention, and the middle layer is made of radiation-proof latex and has the radiation-proof performance.
Description
Technical Field
The invention relates to the technical field of gloves, in particular to a method for preparing radiation-proof, oil-proof, acid-proof, alkali-proof, anti-seepage and anti-tearing gloves.
Background
In an operating environment with nuclear radiation, workers need to wear radiation-resistant gloves to effectively isolate their hands from the nuclear radiation material. In some application scenarios, for example, in the field of overhaul, reprocessing of nuclear fuel and rescue of nuclear radiation accidents of radioactive equipment of a nuclear power station, the radiation-proof gloves are tested in complex environments such as nuclear radiation high-energy rays, corrosion of strong acid (3-7 mol/L nitric acid), corrosion of organic solvents (kerosene and tributyl phosphate), stress aging and the like, and the radiation-proof gloves are required to have good radiation-proof performance and good oil-proof, acid-proof, alkali-proof, anti-permeation and anti-tearing performances. The existing radiation-proof gloves only have radiation-proof performance, and when the gloves are used, the gloves with other performance need to be overlapped for wearing, so that the problem of unchanged wearing exists, and a part of gloves have radiation-proof, acid-proof and alkali-proof performance, but the tearing-proof and anti-seepage performance is poor, and the gloves are inevitably required to be overlapped for wearing when in use. Therefore, a six-prevention glove integrating the six performances of radiation protection, oil resistance, acid resistance, alkali resistance, seepage prevention and tearing prevention is needed.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a method for preparing a six-prevention glove, which comprises the following steps:
s1, immersing a mould into the composite latex, taking out the mould and drying the mould to form a first composite latex layer on the mould;
s2, immersing the mould attached with the composite emulsion layer I into radiation-proof latex, taking out and drying to form a radiation-proof middle layer on the mould;
s3, immersing the mold attached with the radiation-proof middle layer into the composite latex, taking out the mold and drying the mold to form a second composite latex layer on the mold;
wherein, the composite latex comprises 30 to 35 parts of vulcanized nitrile rubber, 30 to 35 parts of vulcanized chloroprene rubber, 30 to 40 parts of vulcanized natural latex, 3 to 4.5 parts of stabilizer and 5 to 10 parts of inorganic mineral powder by weight.
Further, the preparation method of the vulcanized nitrile rubber comprises the following steps: pressing 90-100 kg of butyronitrile into a stirring tank, sequentially adding 0.5-1 kg of stabilizer, 0.8-2 kg of sulfur, 0.5-1 kg of antioxidant and 1-1.5 kg of activator under the stirring state, stirring the mixture in the stirring tank for 16 hours, and fully vulcanizing the butyronitrile in the stirring process to obtain the vulcanized butyronitrile rubber.
Further, the preparation method of the vulcanized neoprene adhesive comprises the following steps: pressing 90-100 kg of chloroprene rubber to a stirring tank, adding 0.5-1.2 kg of stabilizer under the stirring state, stirring the mixture in the stirring tank for 5 minutes, sequentially adding 0.8-1.2 kg of sulfur, 0.6-1 kg of antioxidant, 3.5-5 kg of active agent and 1-1.5 kg of accelerator into the stirring tank, heating the mixture in the stirring tank to 48 ℃ to ensure that the chloroprene rubber starts to be vulcanized for 24 hours, and continuously stirring in the vulcanization process to obtain the vulcanized chloroprene rubber.
Further, the stabilizer is at least one of potassium hydroxide, sodium hydroxide, casein and ammonia water.
Further, the inorganic mineral powder is at least one of white carbon black and calcium carbonate.
Further, the preparation method of the radiation-proof latex comprises the following steps: (1) Putting 60-70 kg of nano radiation-proof material, 5-10 kg of thickener aqueous solution, 5-10 kg of dispersing agent NF aqueous solution, 2-5 kg of cellulose and 40-50 kg of soft water into a stirrer, and uniformly stirring for 30-60 minutes to obtain radiation-proof slurry for later use; (2) Putting 50-65 kg of aqueous polyurethane latex, 0.5-1 kg of thickener aqueous solution, 1-2 kg of dispersant NF aqueous solution, 3-6 kg of cellulose and 3-10 kg of inorganic mineral powder into a stirrer, uniformly stirring for 30 minutes to obtain uniform emulsion, then adding 45kg of the radiation-proof slurry into the uniform emulsion, and continuously stirring for 30 minutes to obtain the radiation-proof latex.
In addition, the invention also provides a six-prevention glove which is prepared by adopting any one of the methods.
The beneficial effects obtained by the invention are as follows:
1. the three-layer glove with the sandwich structure is manufactured by adopting a three-time dipping molding process, the inner layer and the outer layer are made of composite latex, the three-layer glove has the performances of oil resistance, acid resistance, alkali resistance, seepage prevention and tearing prevention, and the middle layer is made of radiation-proof latex and has the radiation-proof performance; the invention adopts the three-time dipping forming process to effectively overcome the phenomenon of pinholes and thin spots in the existing one-time dipping forming process, and greatly improves the product percent of pass.
2. The invention creatively compounds the vulcanized nitrile rubber, the chloroprene rubber and the natural latex according to a specific proportion, and the prepared composite latex can make up for the deficiencies of the nitrile rubber, has the characteristics of oil resistance and acid and alkali resistance of the chloroprene rubber, has excellent wear resistance and tear resistance of the chloroprene rubber, and has excellent elasticity and film forming property of the vulcanized natural latex, so that the composite latex layer has the performances of oil resistance, acid resistance, alkali resistance, permeation prevention and tear resistance.
3. According to the invention, the radiation-proof slurry is prepared from the nano radiation-proof material by using the thickening agent and the dispersing agent, the thickening agent can form a stable chelate with a network structure with the nano radiation-proof material, and the dispersing agent NF is beneficial to dispersing the chelate with the network structure, so that the radiation-proof slurry does not have a sedimentation phenomenon; the cellulose can not only increase the viscosity of the radiation-proof latex, but also avoid the sedimentation phenomenon of the chelate in the latex due to gravity, and is beneficial to the film forming property of the latex.
Drawings
FIG. 1 is a schematic view of the structure of a triple glove provided by the present invention.
Detailed Description
For better understanding of the present invention, the following examples are given for further illustration of the present invention, but the present invention is not limited to the following examples.
Example 1:
a preparation method of a six-prevention glove comprises the following steps:
s1, preparing composite latex and radiation-proof latex for later use;
s2, immersing the mould into the composite latex, taking out the mould and drying the mould to form a first composite latex layer with adhesiveness on the mould;
s3, immersing the mould attached with the composite emulsion layer I into the radiation-proof emulsion, taking out and drying the mould to form a radiation-proof middle layer with adhesiveness on the mould;
and S4, immersing the mold attached with the radiation-proof middle layer into the composite latex again, taking out the mold and drying the mold to form a second composite latex layer on the mold, and then demolding to obtain the six-prevention glove.
The preparation method of the composite latex comprises the following steps:
(1) Preparing vulcanized nitrile-butadiene rubber, namely pressing 90kg of nitrile into a stirring tank at normal temperature, sequentially adding 0.5kg of potassium hydroxide, 0.8kg of sulfur, 0.5kg of antioxidant and 1kg of active agent under the stirring state, stirring the mixture in the stirring tank for 16 hours, and fully vulcanizing the nitrile in the stirring process to obtain the vulcanized nitrile-butadiene rubber for later use;
(2) Preparing vulcanized chloroprene rubber, namely pressing 90kg of chloroprene rubber to a stirring tank at normal temperature, adding 0.5kg of potassium hydroxide under the stirring state, stirring the mixture in the stirring tank for 5 minutes, sequentially adding 0.8kg of sulfur, 0.6kg of antioxidant, 3.5kg of active agent and 1kg of accelerator ZDC into the stirring tank, heating the mixture in the stirring tank to 48 ℃ to enable the chloroprene rubber to start vulcanization, wherein the vulcanization time is 24 hours, and the vulcanization process is continuously stirred to obtain the vulcanized chloroprene rubber for later use;
(3) Preparing vulcanized natural latex, namely pressing 95.12kg of natural latex into a stirring tank, sequentially adding 0.25kg of potassium hydroxide and 0.1kg of dispersing agent under the stirring state, then starting a hot water circulating pump to heat the latex, raising the temperature of the latex to 30 ℃, keeping the temperature at 30 ℃ for 3 hours, then raising the temperature of the latex to 40 ℃, sequentially adding 0.8kg of sulfur, 0.8kg of accelerator ZDC, 1kg of anti-aging agent and 0.4kg of active agent for vulcanization for 4 hours, and continuously stirring in the vulcanization process to obtain the vulcanized natural latex for later use;
(4) And putting 30kg of vulcanized nitrile-butadiene rubber, 30kg of vulcanized chloroprene rubber, 30kg of vulcanized natural latex, 3kg of potassium hydroxide and 5kg of white carbon black into a stirrer, and stirring for 30 minutes to obtain the composite latex.
The antioxidant is hindered phenol antioxidant, the activator is zinc oxide, the dispersant is peregal O, and the anti-aging agent is 2, 6-di-tert-butyl-p-cresol.
The preparation method of the radiation-proof latex comprises the following steps:
(1) Putting 60kg of nano radiation-proof material, 5kg of thickener aqueous solution, 5kg of dispersant NF aqueous solution, 2kg of cellulose and 40kg of soft water into a stirrer, and uniformly stirring for 30 minutes to obtain radiation-proof slurry for later use;
(2) Putting 50kg of waterborne polyurethane latex, 0.5kg of thickener aqueous solution, 1kg of dispersant NF aqueous solution, 3kg of cellulose and 3kg of white carbon black into a stirrer, uniformly stirring for 30 minutes to obtain uniform emulsion, then adding 45kg of the radiation-proof slurry into the uniform emulsion, and continuously stirring for 30 minutes to obtain the radiation-proof latex.
The nano radiation-proof material is nano tungsten powder; the preparation method of the thickener aqueous solution comprises the following steps: mixing 8kg of polyacrylic resin and 87kg of deionized water, and adding 5kg of potassium hydroxide with the mass fraction of 8% to adjust the pH value to prepare a thickening agent aqueous solution with the pH value of 9; the preparation method of the aqueous solution of the dispersing agent NF comprises the following steps: uniformly mixing 5kg of dispersing agent NF with the mass fraction of 5% and 95kg of deionized water to obtain a dispersing agent NF water solution; the cellulose is hydroxymethyl cellulose.
Example 2:
a preparation method of a six-prevention glove comprises the following steps:
s1, preparing composite latex and radiation-proof latex for later use;
s2, immersing the mould into the composite latex, taking out the mould and drying the mould to form a first composite latex layer with adhesiveness on the mould;
s3, immersing the mould attached with the first composite latex layer into the radiation-proof latex, taking out and drying to form a radiation-proof middle layer with adhesiveness on the mould;
and S4, immersing the mould attached with the radiation-proof middle layer into the composite latex again, taking out the mould and drying the mould to form a second composite latex layer on the mould, and then demoulding to obtain the six-prevention glove.
The preparation method of the composite latex comprises the following steps:
(1) Preparing vulcanized nitrile rubber, namely pressing 95kg of nitrile into a stirring tank at normal temperature, sequentially adding 0.75kg of sodium hydroxide, 1.2kg of sulfur, 0.75kg of antioxidant and 1.2kg of active agent under the stirring state, stirring the mixture in the stirring tank for 16 hours, and fully vulcanizing the nitrile in the stirring process to obtain the vulcanized nitrile rubber for later use;
(2) Preparing vulcanized neoprene, namely pressing 95kg of neoprene to a stirring tank at normal temperature, adding 1kg of sodium hydroxide under the stirring state, stirring the mixture in the stirring tank for 5 minutes, sequentially adding 1kg of sulfur, 0.8kg of antioxidant, 4kg of active agent and 1.2kg of accelerator ZDC into the stirring tank, heating the mixture in the stirring tank to 48 ℃ to ensure that the neoprene starts to be vulcanized, wherein the vulcanizing time is 24 hours, and continuously stirring in the vulcanizing process to obtain the vulcanized neoprene for later use;
(3) Preparing vulcanized natural latex, namely pressing 96kg of natural latex into a stirring tank, sequentially adding 0.55kg of sodium hydroxide and 0.2kg of dispersing agent under the stirring state, then starting a hot water circulating pump to heat the latex, raising the temperature of the latex to 40 ℃, keeping the temperature at 40 ℃ for 4 hours, then raising the temperature of the latex to 45 ℃, sequentially adding 0.9kg of sulfur, 0.9kg of accelerator ZDC, 1.1kg of anti-aging agent and 0.6kg of active agent for vulcanization for 4 hours, and continuously stirring in the vulcanization process to obtain the vulcanized natural latex for later use;
(4) Putting 32kg of vulcanized nitrile rubber, 32kg of vulcanized chloroprene rubber, 35kg of vulcanized natural latex, 3.5kg of sodium hydroxide and 7.5kg of calcium carbonate into a stirrer, and stirring for 45 minutes to obtain the composite latex.
The antioxidant is hindered phenol antioxidant, the activator is zinc carbonate, the dispersing agent is NF, and the anti-aging agent is styrenated phenol.
The preparation method of the radiation-proof latex comprises the following steps:
(1) Putting 65kg of nano radiation-proof material, 7.5kg of thickener aqueous solution, 7.5kg of dispersant NF aqueous solution, 3.5kg of cellulose and 40.5kg of soft water into a stirrer, and stirring uniformly for 30 minutes to obtain radiation-proof slurry for later use;
(2) Putting 60kg of waterborne polyurethane latex, 0.75kg of thickener aqueous solution, 1.5kg of dispersant NF aqueous solution, 4.5kg of cellulose and 5kg of calcium carbonate into a stirrer, uniformly stirring for 45 minutes to obtain uniform emulsion, then adding 50kg of the radiation-proof slurry into the uniform emulsion, and continuously stirring for 45 minutes to obtain the radiation-proof latex.
The nano radiation-proof material is nano lead powder; the preparation method of the thickener aqueous solution comprises the following steps: mixing 8kg of polyacrylic resin and 87kg of deionized water, and adding 5kg of potassium hydroxide with the mass fraction of 8% to adjust the pH value to prepare a thickening agent aqueous solution with the pH value of 9; the preparation method of the dispersant NF aqueous solution comprises the following steps: uniformly mixing 5kg of dispersing agent NF with the mass fraction of 5% and 95kg of deionized water to obtain a dispersing agent NF aqueous solution; the cellulose is hydroxymethyl cellulose.
Example 3:
a preparation method of a six-prevention glove comprises the following steps:
s1, preparing composite latex and radiation-proof latex for later use;
s2, immersing the mould into the composite latex, taking out and drying to form a first composite latex layer with adhesiveness on the mould;
s3, immersing the mould attached with the composite emulsion layer I into the radiation-proof emulsion, taking out and drying the mould to form a radiation-proof middle layer with adhesiveness on the mould;
and S4, immersing the mold attached with the radiation-proof middle layer into the composite latex again, taking out the mold and drying the mold to form a second composite latex layer on the mold, and then demolding to obtain the six-prevention glove.
The preparation method of the composite latex comprises the following steps:
(1) Preparing vulcanized butyronitrile rubber, namely pressing 100kg of butyronitrile into a stirring tank at normal temperature, sequentially adding 1kg of casein, 2kg of sulfur, 1kg of antioxidant and 1.5kg of active agent under the stirring state, stirring the mixture in the stirring tank for 16 hours, and fully vulcanizing the butyronitrile in the stirring process to obtain the vulcanized butyronitrile rubber for later use;
(2) Preparing vulcanized chloroprene rubber, namely pressing 100kg of chloroprene rubber to a stirring tank at normal temperature, adding 1.2kg of casein under the stirring state, stirring the mixture in the stirring tank for 5 minutes, sequentially adding 1.2kg of sulfur, 1kg of antioxidant, 5kg of active agent and 1.5kg of accelerant PX into the stirring tank, heating the mixture in the stirring tank to 48 ℃ to enable the chloroprene rubber to start vulcanization, wherein the vulcanization time is 24 hours, and continuously stirring in the vulcanization process to obtain the vulcanized chloroprene rubber for later use;
(3) Preparing vulcanized natural latex, namely pressing 96.75kg of natural latex into a stirring tank, sequentially adding 0.8kg of casein and 0.3kg of dispersing agent under the stirring state, then starting a hot water circulating pump to heat the latex, raising the temperature of the latex to 45 ℃, keeping the temperature for 4 hours at 42 ℃, then raising the temperature of the latex to 50 ℃, sequentially adding 1kg of sulfur, 1kg of accelerant PX, 1.25kg of anti-aging agent and 0.8kg of active agent for vulcanization, wherein the vulcanization time is 4 hours, and continuously stirring in the vulcanization process to obtain the vulcanized natural latex for later use;
(4) And putting 35kg of vulcanized nitrile rubber, 35kg of vulcanized chloroprene rubber, 40kg of vulcanized natural latex, 4.5kg of casein and 10kg of calcium carbonate into a stirrer, and stirring for 60 minutes to obtain the composite latex.
The antioxidant is hindered phenol antioxidant, the activator is zinc carbonate, the dispersing agent is NF, and the anti-aging agent is styrenated phenol.
The preparation method of the radiation-proof latex comprises the following steps:
(1) Putting 70kg of nano radiation-proof material, 10kg of thickener aqueous solution, 10kg of dispersant NF aqueous solution, 5kg of cellulose and 50kg of soft water into a stirrer, and uniformly stirring for 60 minutes to obtain radiation-proof slurry for later use;
(2) Putting 65kg of waterborne polyurethane latex, 1kg of thickener aqueous solution, 2kg of dispersant NF aqueous solution, 6kg of cellulose and 10kg of calcium carbonate into a stirrer, stirring uniformly for 60 minutes to obtain uniform emulsion, then adding 650kg of the radiation-proof slurry into the uniform emulsion, and continuing stirring for 60 minutes to obtain the radiation-proof latex.
The nano radiation-proof material is a mixture of lead oxide and lead tetroxide, and the mass ratio of the lead oxide to the lead tetroxide is 1; the preparation method of the thickener aqueous solution comprises the following steps: mixing 8kg of polyacrylic resin and 87kg of deionized water, and adding 5kg of potassium hydroxide with the mass fraction of 8% to adjust the pH value to prepare a thickening agent aqueous solution with the pH value of 9; the preparation method of the dispersant NF aqueous solution comprises the following steps: uniformly mixing 5kg of dispersing agent NF with the mass fraction of 5% and 95kg of deionized water to obtain a dispersing agent NF aqueous solution; the cellulose is hydroxyethyl cellulose.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A preparation method of a six-prevention glove is characterized by comprising the following steps:
s1, immersing a mould into composite latex, taking out the mould and drying the mould to form a first composite latex layer on the mould;
s2, immersing the mould attached with the composite emulsion layer I into radiation-proof latex, taking out and drying to form a radiation-proof middle layer on the mould;
s3, immersing the mold attached with the radiation-proof middle layer into the composite latex, taking out the mold and drying the mold to form a second composite latex layer on the mold;
wherein, the composite latex comprises 30 to 35 parts of vulcanized nitrile rubber, 30 to 35 parts of vulcanized chloroprene rubber, 30 to 40 parts of vulcanized natural latex, 3 to 4.5 parts of stabilizer and 5 to 10 parts of inorganic mineral powder by weight.
2. The method for preparing the six-prevention glove according to claim 1, wherein the method for preparing the vulcanized nitrile rubber comprises the following steps: pressing 90-100 kg of butyronitrile into a stirring tank, sequentially adding 0.5-1 kg of stabilizer, 0.8-2 kg of sulfur, 0.5-1 kg of antioxidant and 1-1.5 kg of activator under the stirring state, stirring the mixture in the stirring tank for 16 hours, and fully vulcanizing the butyronitrile in the stirring process to obtain the vulcanized butyronitrile rubber.
3. The method for preparing the hexa-protective glove according to claim 1, wherein the method for preparing the vulcanized neoprene comprises the following steps: pressing 90-100 kg of neoprene to a stirring tank, adding 0.5-1.2 kg of stabilizer under the stirring state, stirring the mixture in the stirring tank for 5 minutes, sequentially adding 0.8-1.2 kg of sulfur, 0.6-1 kg of antioxidant, 3.5-5 kg of active agent and 1-1.5 kg of accelerator into the stirring tank, heating the mixture in the stirring tank to 48 ℃ to enable the neoprene to start to be vulcanized, wherein the vulcanizing time is 24 hours, and continuously stirring in the vulcanizing process to obtain the vulcanized neoprene.
4. The method of making a sextant glove according to claim 1 wherein the stabilizer is at least one of potassium hydroxide, sodium hydroxide, casein, and ammonia.
5. The method for preparing six-protection gloves according to claim 1, wherein the inorganic mineral powder is at least one of white carbon black and calcium carbonate.
6. The method for preparing a six-protection glove according to claim 1, wherein the method for preparing the radiation protection latex comprises the following steps: (1) Putting 60-70 kg of nano radiation-proof material, 5-10 kg of thickener aqueous solution, 5-10 kg of dispersing agent NF aqueous solution, 2-5 kg of cellulose and 40-50 kg of soft water into a stirrer, and uniformly stirring for 30-60 minutes to obtain radiation-proof slurry for later use; (2) 50-65 kg of waterborne polyurethane latex, 0.5-1 kg of thickener aqueous solution, 1-2 kg of dispersant NF aqueous solution, 3-6 kg of cellulose and 3-10 kg of inorganic mineral powder are put into a stirrer to be uniformly stirred for 30 minutes to obtain uniform emulsion, then 45kg of the radiation-proof slurry is added into the uniform emulsion to be continuously stirred for 30 minutes to obtain the radiation-proof latex.
7. A six-proof glove, characterised in that it is made by the process of any one of claims 1 to 6.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117100020A (en) * | 2023-10-23 | 2023-11-24 | 安禧新材料(南通)有限公司 | Radiation-proof protective glove, manufacturing process and equipment thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117100020A (en) * | 2023-10-23 | 2023-11-24 | 安禧新材料(南通)有限公司 | Radiation-proof protective glove, manufacturing process and equipment thereof |
| CN117100020B (en) * | 2023-10-23 | 2023-12-29 | 安禧新材料(南通)有限公司 | Radiation-proof protective glove, manufacturing process and equipment thereof |
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