CN113442342A - Novel butyronitrile glove chlorination preparation process - Google Patents
Novel butyronitrile glove chlorination preparation process Download PDFInfo
- Publication number
- CN113442342A CN113442342A CN202110741128.3A CN202110741128A CN113442342A CN 113442342 A CN113442342 A CN 113442342A CN 202110741128 A CN202110741128 A CN 202110741128A CN 113442342 A CN113442342 A CN 113442342A
- Authority
- CN
- China
- Prior art keywords
- nitrile
- preparation process
- glove
- novel
- butyronitrile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 49
- 229920000126 latex Polymers 0.000 claims abstract description 38
- 239000004816 latex Substances 0.000 claims abstract description 36
- 238000002156 mixing Methods 0.000 claims abstract description 26
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000460 chlorine Substances 0.000 claims abstract description 16
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 16
- 150000002825 nitriles Chemical class 0.000 claims abstract description 14
- 238000007598 dipping method Methods 0.000 claims abstract description 12
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 7
- 230000002411 adverse Effects 0.000 claims abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 238000004073 vulcanization Methods 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 239000000839 emulsion Substances 0.000 claims description 16
- 239000013543 active substance Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000701 coagulant Substances 0.000 claims description 8
- -1 alkyl glucoside Chemical class 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000004636 vulcanized rubber Substances 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 241001122767 Theaceae Species 0.000 claims description 3
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 claims description 3
- 229930003935 flavonoid Natural products 0.000 claims description 3
- 150000002215 flavonoids Chemical class 0.000 claims description 3
- 235000017173 flavonoids Nutrition 0.000 claims description 3
- 229930182478 glucoside Natural products 0.000 claims description 3
- 125000005456 glyceride group Chemical group 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 229920001228 polyisocyanate Polymers 0.000 claims description 3
- 239000005056 polyisocyanate Substances 0.000 claims description 3
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims description 3
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 3
- 235000013824 polyphenols Nutrition 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 235000010384 tocopherol Nutrition 0.000 claims description 3
- 229960001295 tocopherol Drugs 0.000 claims description 3
- 229930003799 tocopherol Natural products 0.000 claims description 3
- 239000011732 tocopherol Substances 0.000 claims description 3
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 abstract description 11
- 239000005060 rubber Substances 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000007731 hot pressing Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 38
- 238000000034 method Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/015—Protective gloves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/86—Component parts, details or accessories; Auxiliary operations for working at sub- or superatmospheric pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/049—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using steam or damp
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
- C08L9/04—Latex
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Textile Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Gloves (AREA)
Abstract
The invention discloses a novel butyronitrile glove chlorination preparation process, which relates to the technical field of chlorination preparation methods and comprises the following steps: preparing a latex solution, adding chlorine to prepare a turbid liquid, dipping a mold in a chlorinated nitrile rubber turbid liquid, molding nitrile gloves, and vulcanizing nitrile gloves. According to the invention, the acrylonitrile content of the nitrile rubber latex is selected, the oil resistance of the nitrile rubber is ensured, and the non-ionic surfactant is matched for assistance, so that the hot-pressing resistance of the rubber material is increased, the molecular activity among the materials is improved, and the heat stabilizer and the antioxidant are matched for increasing the capability of preventing the adverse effect of oxygen for the rubber material, thereby avoiding the problem that the raw materials of the nitrile glove latex solution are different in bond layer stability and freedom degree, so that the situation of insufficient mixing is easy to occur, improving the mixing degree of the nitrile glove latex solution, and ensuring the production efficiency of the nitrile gloves.
Description
Technical Field
The invention relates to the technical field of chlorination preparation methods, in particular to a novel butyronitrile glove chlorination preparation process.
Background
Chlorinated rubber is an industrially important rubber derivative, and is widely used in various fields in daily life due to its unique water penetration resistance and flame retardancy, while nitrile rubber has excellent oil resistance, high chemical resistance and good processability, but its flexibility and toughness are relatively poor, and it is difficult to provide additional comfort to users, so there is a limitation in use in various fields.
The following problems exist in the prior art:
1. when the existing butyronitrile gloves are produced, because the stability and the degree of freedom of bond layers existing among the raw materials of the components are different, the situation of insufficient mixing is easy to occur, so that the problems that the mixing efficiency of the latex solution of the butyronitrile gloves is low, and the production efficiency and the forming rate of the butyronitrile gloves are reduced are caused;
2. when the existing nitrile butadiene rubber suspension is subjected to a chlorination process, the situations of low speed and low mixing completion degree are easy to occur, so that the output efficiency of the nitrile butadiene rubber suspension is reduced, and the cost of the preparation process is increased.
Disclosure of Invention
The invention provides a novel butyronitrile glove chlorination preparation process, which aims to improve the mixing degree of a butyronitrile glove latex solution and solve the problem that the butyronitrile glove latex solution is easy to be insufficiently mixed due to different stability and freedom of bond layers among raw materials; the other purpose is to solve the problems that the nitrile rubber suspension is low in speed and low in mixing completion degree when the nitrile rubber suspension is subjected to a chlorination process, so that the effects of improving the output efficiency of the nitrile rubber suspension and reducing the preparation cost of the solution are achieved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a novel butyronitrile glove chlorination preparation process comprises the following steps:
preparing a latex solution;
step two, adding chlorine to prepare suspension;
step three, dipping the chlorinated nitrile rubber suspension in the mould;
step four, forming the butyronitrile gloves;
and step five, vulcanizing the butyronitrile gloves.
The technical scheme of the invention is further improved as follows: the emulsion solution is composed of nitrile rubber latex, an active agent, a heat stabilizer, an anti-mildew agent, a bridging agent, a pure water medium and an accelerator, and comprises the following distributed raw materials in parts by weight: 70-90 parts of nitrile rubber latex, 3-5 parts of an active agent, 2-3 parts of a heat stabilizer, 0.5-1 part of an anti-mildew agent, 1 part of a bridging agent, 10-13 parts of a pure water medium and 1-2 parts of an accelerator.
The technical scheme of the invention is further improved as follows: the acrylonitrile-butadiene rubber latex has the acrylonitrile content of 42-46%, the active agent is a nonionic surfactant, and the active agent is any one of alkyl glucoside, fatty glyceride, polyoxyethylene type or polyoxyethylene-polyoxypropylene copolymer.
By adopting the technical scheme, the acrylonitrile content of the nitrile rubber latex in the scheme is selected, the oil resistance of the nitrile gloves can be ensured, the degree of freedom among nitrile rubber molecules is increased by matching with the nonionic surfactant, and the mixing degree of the raw materials of the nitrile rubber is improved.
The technical scheme of the invention is further improved as follows: the heat stabilizer is a mixed metal stabilizer, an antioxidant and a lubricant can be added to the mixed metal stabilizer according to actual requirements so as to improve the adverse effect and the smoothness of the butyronitrile gloves on preventing oxygen, and the antioxidant is any one of tea polyphenol, tocopherol, flavonoids or butyl hydroxy anisole.
The technical scheme of the invention is further improved as follows: the main component of the bridging agent is closed polyisocyanate which forms curing crosslinking when used for heat treatment, and the water resistance and wear resistance of the material are improved.
The technical scheme of the invention is further improved as follows: the second step further comprises the following steps:
a1, adding chlorine and sodium chlorate solution into the latex solution, pressurizing at 15Mpa for 15-20 min to prepare 65% emulsion;
a2, adding a sodium hydroxide solution (25-30%) into 65% of emulsion, and oscillating and mixing to obtain a chlorinated nitrile rubber suspension;
a3, filtering the chlorinated nitrile-butadiene rubber suspension for 2-3 times, and screening out impurities to obtain the chlorinated nitrile-butadiene rubber suspension with the chlorine content of 60-63%.
By adopting the technical scheme, the pressurization in the scheme is used for improving the mixing degree of the chlorine, the sodium chlorate solution and the latex solution, and the emulsion and the sodium hydroxide solution are fully mixed by matching with the oscillation operation.
The technical scheme of the invention is further improved as follows: the third step further comprises: and (3) coating a coagulant on the outer surface of the mould, dipping the mould in the chlorinated nitrile butadiene rubber suspension for 1.5-2 minutes, ensuring that the ambient temperature is stabilized at 130 ℃ during dipping, and taking out and drying after dipping.
By adopting the technical scheme, the mold and the coagulant in the scheme are matched together, so that the chlorinated nitrile rubber turbid liquid is more quickly and conveniently coagulated on the mold.
The technical scheme of the invention is further improved as follows: the fifth step further comprises: the vulcanization processing of the butyronitrile gloves is carried out in a mixed gas vulcanization mode, the butyronitrile gloves are firstly placed in room temperature vulcanized rubber cement for 5-8 minutes, then the butyronitrile gloves are placed in steam for direct vulcanization, the steam temperature is 100-110 ℃, the vulcanization is carried out for 5-10 minutes, adjustment can be carried out according to actual conditions, the vulcanization degree is prevented from being too high, the butyronitrile gloves are taken out after the vulcanization is finished, cleaned and dried, and the tensile strength is 14-16Mpa after the butyronitrile gloves are manufactured.
By adopting the technical scheme, the vulcanization of the butyronitrile gloves is carried out in the gas-mixing vulcanization mode in the scheme, the appearance influence of direct steam vulcanization on the butyronitrile gloves can be weakened, and the vulcanization time can also be shortened.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides a novel butyronitrile glove chlorination preparation process, which adopts the matching of a butyronitrile rubber latex, an active agent, a heat stabilizer and an antioxidant, selects the acrylonitrile content of the butyronitrile rubber latex to ensure the oil resistance of the butyronitrile rubber, and then is matched with the assistance of a nonionic surfactant to improve the molecular activity among materials while increasing the hot-pressing resistance of a rubber material, and then is matched with the antioxidant by the heat stabilizer to improve the capability of preventing the adverse effect of oxygen for the rubber material, thereby avoiding the problem that the insufficient mixing is easy to occur due to different bond layer stability and freedom degrees among the raw materials of the butyronitrile glove latex solution, improving the mixing degree of the butyronitrile glove latex solution and ensuring the production efficiency of the butyronitrile gloves.
2. The invention provides a novel butyronitrile glove chlorination preparation process, which adopts the matching of latex solution, chlorine, sodium chlorate solution and sodium hydroxide solution, ensures that the mixing efficiency of all components is higher under a high-pressure environment by pressurizing the latex solution, the chlorine and the sodium chlorate solution, then matches the oscillation mixing of emulsion and the sodium hydroxide solution to accelerate the mixing speed of the latex solution and the sodium chlorate solution, also ensures that the mixing completion degree of the latex solution and the sodium chlorate solution is higher, and then utilizes multiple times of filtration to screen out impurities in suspension, ensures the purity degree of the suspension, avoids the problems of low speed and low mixing completion degree of the butyronitrile rubber suspension during the chlorination process, improves the production efficiency of the butyronitrile rubber suspension, and simultaneously reduces the cost consumption during preparation.
3. The invention provides a novel butyronitrile glove chlorination preparation process, which adopts the matching of a mold, a coagulant and mixed gas vulcanization, and ensures that the demolding of the molded butyronitrile gloves is more convenient through the matching of the mold and the coagulant, and the butyronitrile gloves are vulcanized in a mixed gas vulcanization mode, so that the influence of direct steam vulcanization on the appearance of the butyronitrile gloves can be weakened, the heat transfer speed can be accelerated by utilizing steam, the vulcanization time is shortened, and the output efficiency of the butyronitrile gloves is further improved.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in figure 1, the invention provides a novel butyronitrile glove chlorination preparation process, which comprises the following steps:
preparing a latex solution;
step two, adding chlorine to prepare suspension;
step three, dipping the chlorinated nitrile rubber suspension in the mould;
step four, forming the butyronitrile gloves;
and step five, vulcanizing the butyronitrile gloves.
The emulsion solution consists of nitrile rubber latex, an active agent, a heat stabilizer, an anti-mildew agent, a bridging agent, a pure water medium and an accelerator, and comprises the following distributed raw materials in parts by weight: the nitrile rubber latex comprises, by weight, 70-90 parts of nitrile rubber latex, 3-5 parts of an active agent, 2-3 parts of a heat stabilizer, 0.5-1 part of an anti-mildew agent, 1 part of a bridging agent, 10-13 parts of a pure water medium and 1-2 parts of an accelerator, wherein the acrylonitrile content of the nitrile rubber latex is 42-46%, the nitrile rubber latex with the acrylonitrile content of 42-46% is adopted, the oil resistance of the nitrile rubber can be guaranteed by the material characteristics of the nitrile rubber, the active agent is a nonionic surfactant, the active agent is any one of alkyl glucoside, fatty glyceride, polyoxyethylene type or polyoxyethylene-polyoxypropylene copolymer, the nonionic surfactant is utilized, the connection freedom degree among materials in the latex can be improved, the bond layer stability of the materials can also be improved, the mixed metal stabilizer is adopted, the antioxidant and the lubricant can be added according to actual requirements, the antioxidant is any one of tea polyphenol, tocopherol, flavonoid or butyl hydroxy anisole, the main component of the bridging agent is blocked polyisocyanate, and the bridging agent is used for forming curing crosslinking during heat treatment, improving the water resistance and wear resistance of the material
Example 2
As shown in fig. 1, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the second step further comprises the following steps:
a1, adding chlorine and sodium chlorate solution into the latex solution, pressurizing at 15Mpa for 15-20 minutes to prepare 65% emulsion, and pressurizing the mixed solution to improve the mixing degree of each component in the mixed solution by utilizing a high-pressure environment;
a2, adding a sodium hydroxide solution (25-30%) into a 65% emulsion, oscillating and mixing to obtain a chlorinated nitrile-butadiene rubber suspension, mixing the sodium hydroxide solution with the content of 25-30% and the 65% emulsion to ensure that the sodium hydroxide solution and the 65% emulsion can be close to the peak value of the mixing rate to the maximum extent, and matching with the oscillating operation, further improving the mixing efficiency between the sodium hydroxide solution and the emulsion and increasing the mixing completion degree of the chlorinated nitrile-butadiene rubber suspension;
a3, filtering the chlorinated nitrile-butadiene rubber suspension for 2-3 times to screen out impurities, obtaining the chlorinated nitrile-butadiene rubber suspension with the chlorine content of 60-63%, and screening out the impurities in the chlorinated nitrile-butadiene rubber suspension to the maximum extent through filtering for multiple times, so that the purity of the chlorinated nitrile-butadiene rubber suspension is ensured, and the forming rate and the smoothness of subsequent nitrile gloves are higher.
Example 3
As shown in fig. 1, on the basis of embodiments 1 and 2, the present invention provides a technical solution: preferably, step three further comprises: the surface of mould is smeared with the coagulant, utilizes the cooperation of coagulant and mould for when the butadiene acrylonitrile rubber turbid liquid is attached to the mould, can form as early as possible, shorten the shaping time, the mould is impregnated 1.5-2 minutes in the chlorinated butadiene acrylonitrile rubber turbid liquid, and guarantees that ambient temperature is stable at 130 ℃ when impregnating, takes out after the flooding is accomplished and dries, step five still includes: the vulcanization processing of the butyronitrile gloves is carried out in a mixed gas vulcanization mode, the butyronitrile gloves are firstly placed in room temperature vulcanized rubber cement for 5-8 minutes, then the butyronitrile gloves are placed in steam for direct vulcanization, the steam temperature is 100-.
As shown in figure 1, during production, firstly, nitrile rubber latex, an active agent, a heat stabilizer, an anti-mildew agent, a bridging agent, a pure water medium and an accelerator are distributed according to quantity, sequentially added and uniformly mixed, a latex solution is prepared, then chlorine and a sodium chlorate solution are added into the latex solution, the environmental pressure of 15Mpa is set, pressurization is carried out for 15-20 minutes, emulsion with the chlorine component content of 65% is prepared, then 25-30% sodium hydroxide solution is added into the emulsion, oscillation mixing is carried out, chlorinated nitrile rubber suspension is prepared, then the chlorinated nitrile rubber suspension is filtered for 2-3 times, impurities are screened out, chlorinated nitrile rubber suspension with the chlorine content of 60-63% can be obtained, a glove mold coated with a coagulant on the outer surface is immersed in the chlorinated nitrile rubber suspension for 1.5-2 minutes, and meanwhile, the environmental temperature is ensured to be stable at 130 ℃ during dipping, the dipped gloves are taken out and dried after the dipping is finished, so that a butyronitrile glove primary mold can be obtained, then the butyronitrile gloves are placed in room-temperature vulcanized rubber cement for 5-8 minutes, then the butyronitrile gloves are placed in steam for direct vulcanization, the steam temperature is 100 plus one year, the vulcanization is carried out for 5-10 minutes, the adjustment time can be adjusted according to the actual situation, the situation of insufficient vulcanization or over vulcanization is prevented, and the butyronitrile gloves are taken out, cleaned and dried after the vulcanization is finished.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (8)
1. A novel butyronitrile glove chlorination preparation process is characterized in that: the novel butyronitrile glove chlorination preparation process comprises the following steps:
preparing a latex solution;
step two, adding chlorine to prepare suspension;
step three, dipping the chlorinated nitrile rubber suspension in the mould;
step four, forming the butyronitrile gloves;
and step five, vulcanizing the butyronitrile gloves.
2. The novel nitrile glove chlorination preparation process according to claim 1, wherein: the emulsion solution is composed of nitrile rubber latex, an active agent, a heat stabilizer, an anti-mildew agent, a bridging agent, a pure water medium and an accelerator, and comprises the following distributed raw materials in parts by weight: 70-90 parts of nitrile rubber latex, 3-5 parts of an active agent, 2-3 parts of a heat stabilizer, 0.5-1 part of an anti-mildew agent, 1 part of a bridging agent, 10-13 parts of a pure water medium and 1-2 parts of an accelerator.
3. The novel nitrile glove chlorination preparation process according to claim 2, wherein: the acrylonitrile-butadiene rubber latex has the acrylonitrile content of 42-46%, the active agent is a nonionic surfactant, and the active agent is any one of alkyl glucoside, fatty glyceride, polyoxyethylene type or polyoxyethylene-polyoxypropylene copolymer.
4. The novel nitrile glove chlorination preparation process according to claim 2, wherein: the heat stabilizer is a mixed metal stabilizer, an antioxidant and a lubricant can be added to the mixed metal stabilizer according to actual requirements so as to improve the adverse effect and the smoothness of the butyronitrile gloves on preventing oxygen, and the antioxidant is any one of tea polyphenol, tocopherol, flavonoids or butyl hydroxy anisole.
5. The novel nitrile glove chlorination preparation process according to claim 2, wherein: the main component of the bridging agent is closed polyisocyanate which forms curing crosslinking when used for heat treatment, and the water resistance and wear resistance of the material are improved.
6. The novel nitrile glove chlorination preparation process according to claim 1, wherein: the second step further comprises the following steps:
a1, adding chlorine and sodium chlorate solution into the latex solution, pressurizing at 15Mpa for 15-20 min to prepare 65% emulsion;
a2, adding a sodium hydroxide solution (25-30%) into 65% of emulsion, and oscillating and mixing to obtain a chlorinated nitrile rubber suspension;
a3, filtering the chlorinated nitrile-butadiene rubber suspension for 2-3 times, and screening out impurities to obtain the chlorinated nitrile-butadiene rubber suspension with the chlorine content of 60-63%.
7. The novel nitrile glove chlorination preparation process according to claim 1, wherein: the third step further comprises: and (3) coating a coagulant on the outer surface of the mould, dipping the mould in the chlorinated nitrile butadiene rubber suspension for 1.5-2 minutes, ensuring that the ambient temperature is stabilized at 130 ℃ during dipping, and taking out and drying after dipping.
8. The novel nitrile glove chlorination preparation process according to claim 1, wherein: the fifth step further comprises: the vulcanization processing of the butyronitrile gloves is carried out in a mixed gas vulcanization mode, the butyronitrile gloves are firstly placed in room temperature vulcanized rubber cement for 5-8 minutes, then the butyronitrile gloves are placed in steam for direct vulcanization, the steam temperature is 100-110 ℃, the vulcanization is carried out for 5-10 minutes, adjustment can be carried out according to actual conditions, the vulcanization degree is prevented from being too high, and the butyronitrile gloves are taken out, cleaned and dried after the vulcanization is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110741128.3A CN113442342A (en) | 2021-07-01 | 2021-07-01 | Novel butyronitrile glove chlorination preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110741128.3A CN113442342A (en) | 2021-07-01 | 2021-07-01 | Novel butyronitrile glove chlorination preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113442342A true CN113442342A (en) | 2021-09-28 |
Family
ID=77814529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110741128.3A Pending CN113442342A (en) | 2021-07-01 | 2021-07-01 | Novel butyronitrile glove chlorination preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113442342A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667000A (en) * | 2005-02-24 | 2005-09-14 | 宜兴市昌吉利化工有限公司 | Modified process for preparing chlorinated rubber by water phase |
| CN103804533A (en) * | 2012-11-14 | 2014-05-21 | 沂水鼎润化工科技有限公司 | Chlorinated rubber production method through water-phase suspension process |
| CN104761762A (en) * | 2015-03-29 | 2015-07-08 | 安徽同丰橡塑工业有限公司 | Preparation process of chlorinated butadiene-nitrile rubber |
| CN108395595A (en) * | 2018-02-28 | 2018-08-14 | 山东星宇手套有限公司 | A kind of preparation method of low temperature resistant butyronitrile protective gloves and butadiene-acrylonitrile cement used |
| CN109354731A (en) * | 2018-09-23 | 2019-02-19 | 南通嘉得利安全用品有限公司 | A kind of antistatic protective gloves and preparation method thereof |
| CN111333928A (en) * | 2020-03-12 | 2020-06-26 | 南通金斯顿防护用品有限公司 | Novel antistatic butyronitrile gloves and preparation method thereof |
-
2021
- 2021-07-01 CN CN202110741128.3A patent/CN113442342A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667000A (en) * | 2005-02-24 | 2005-09-14 | 宜兴市昌吉利化工有限公司 | Modified process for preparing chlorinated rubber by water phase |
| CN103804533A (en) * | 2012-11-14 | 2014-05-21 | 沂水鼎润化工科技有限公司 | Chlorinated rubber production method through water-phase suspension process |
| CN104761762A (en) * | 2015-03-29 | 2015-07-08 | 安徽同丰橡塑工业有限公司 | Preparation process of chlorinated butadiene-nitrile rubber |
| CN108395595A (en) * | 2018-02-28 | 2018-08-14 | 山东星宇手套有限公司 | A kind of preparation method of low temperature resistant butyronitrile protective gloves and butadiene-acrylonitrile cement used |
| CN109354731A (en) * | 2018-09-23 | 2019-02-19 | 南通嘉得利安全用品有限公司 | A kind of antistatic protective gloves and preparation method thereof |
| CN111333928A (en) * | 2020-03-12 | 2020-06-26 | 南通金斯顿防护用品有限公司 | Novel antistatic butyronitrile gloves and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈士朝等: "《橡胶技术与制造概论》", 中国石化出版社, pages: 198 - 199 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101424856B1 (en) | Carboxylic acid modified-nitrile based copolymer latex for dip-forming, latex composition for dip-forming comprising the same, and the product thereof | |
| CN100513118C (en) | Method for fabricating one-off composite glove of nitrile butadiene rubber polyurethane and the use thereof | |
| CN106617401B (en) | A kind of polyvinyl chloride/butyronitrile compounded rubber gloves and preparation method thereof | |
| KR20150025637A (en) | Carboxylic acid modified-nitrile based copolymer latex composition and dip-forming comprising the same | |
| CN113480810A (en) | Modified PVC composite glove and preparation method thereof | |
| CN108440775B (en) | Preparation method of natural rubber gloves free of blooming | |
| CN106666878B (en) | A kind of compounded rubber gloves and preparation method thereof | |
| CN107418002A (en) | A kind of high-quality rubber seal | |
| EP2243802A2 (en) | Foamed polymer and its use in the manufacture of gloves | |
| CN105384977A (en) | Powder-free gloves and preparation method thereof | |
| KR102112590B1 (en) | Composition For Dip-forming comprising carboxylic acid modified latex and method of manufacturing dip-formed article | |
| CN113442342A (en) | Novel butyronitrile glove chlorination preparation process | |
| CN103724711A (en) | Preparation method of household butadiene-acrylonitrile rubber gloves | |
| EP1435374A2 (en) | Accelerator free nitrile gloves | |
| CN113121934A (en) | PVC frosted glove and preparation process thereof | |
| CN108623858B (en) | Acid coagulation preparation method of medical gloves | |
| CN111004422A (en) | NBR (nitrile-butadiene rubber) sizing material for continuous extrusion foaming | |
| KR102135399B1 (en) | Composition For Dip-forming comprising carboxylic acid modified latex and method of manufacturing dip-formed article | |
| KR20030023038A (en) | Water borne urethane dispersions gloves and methods of making the same | |
| CN107964248A (en) | A kind of low modulus high-tear strength silicon rubber and preparation method thereof | |
| KR102135404B1 (en) | Composition For Dip-forming comprising carboxylic acid modified latex and method of manufacturing dip-formed article | |
| CN114228219A (en) | Production process of medical latex gloves | |
| CN100563982C (en) | The manufacture method of butadiene acrylonitrile rubber medical gloves | |
| CN114409982A (en) | Wear-resistant rubber gloves and preparation method thereof | |
| CN103724714A (en) | Household butadiene-acrylonitrile rubber gloves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210928 |