CN115679707A - Preparation method of novel protective clothing fabric - Google Patents
Preparation method of novel protective clothing fabric Download PDFInfo
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- CN115679707A CN115679707A CN202110853204.XA CN202110853204A CN115679707A CN 115679707 A CN115679707 A CN 115679707A CN 202110853204 A CN202110853204 A CN 202110853204A CN 115679707 A CN115679707 A CN 115679707A
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- parts
- rubber
- fabric
- chlorosulfonated polyethylene
- protective clothing
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- 239000004744 fabric Substances 0.000 title claims abstract description 73
- 230000001681 protective effect Effects 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims abstract description 109
- 239000005060 rubber Substances 0.000 claims abstract description 107
- 150000001875 compounds Chemical class 0.000 claims abstract description 49
- 238000000576 coating method Methods 0.000 claims abstract description 41
- 229920002681 hypalon Polymers 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 34
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 29
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 24
- 238000004073 vulcanization Methods 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000004568 cement Substances 0.000 claims abstract description 13
- 229920006284 nylon film Polymers 0.000 claims abstract description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 32
- 239000000853 adhesive Substances 0.000 claims description 28
- 235000021355 Stearic acid Nutrition 0.000 claims description 24
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 24
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 24
- 239000008117 stearic acid Substances 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 229920000715 Mucilage Polymers 0.000 claims description 22
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 21
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 claims description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000006229 carbon black Substances 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 16
- 239000000395 magnesium oxide Substances 0.000 claims description 16
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 16
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 16
- 239000011787 zinc oxide Substances 0.000 claims description 16
- 239000010445 mica Substances 0.000 claims description 15
- 229910052618 mica group Inorganic materials 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 15
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 14
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 12
- 229910052717 sulfur Inorganic materials 0.000 claims description 12
- 239000011593 sulfur Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 229960002447 thiram Drugs 0.000 claims description 8
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 7
- PDQAZBWRQCGBEV-UHFFFAOYSA-N Ethylenethiourea Chemical compound S=C1NCCN1 PDQAZBWRQCGBEV-UHFFFAOYSA-N 0.000 claims description 7
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000013329 compounding Methods 0.000 claims description 6
- STSDHUBQQWBRBH-UHFFFAOYSA-N n-cyclohexyl-1,3-benzothiazole-2-sulfonamide Chemical compound N=1C2=CC=CC=C2SC=1S(=O)(=O)NC1CCCCC1 STSDHUBQQWBRBH-UHFFFAOYSA-N 0.000 claims description 6
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 5
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 claims description 4
- CPGFMWPQXUXQRX-UHFFFAOYSA-N 3-amino-3-(4-fluorophenyl)propanoic acid Chemical compound OC(=O)CC(N)C1=CC=C(F)C=C1 CPGFMWPQXUXQRX-UHFFFAOYSA-N 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 238000004898 kneading Methods 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- -1 argil Chemical compound 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 41
- 239000000126 substance Substances 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 11
- 229920001973 fluoroelastomer Polymers 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 5
- 239000012752 auxiliary agent Substances 0.000 description 5
- 229920005549 butyl rubber Polymers 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 4
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 3
- 231100000481 chemical toxicant Toxicity 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003440 toxic substance Substances 0.000 description 3
- 239000004636 vulcanized rubber Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- HLDKTASHQOGTII-UHFFFAOYSA-N acetonitrile;methanedithione Chemical compound CC#N.S=C=S HLDKTASHQOGTII-UHFFFAOYSA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 238000013098 chemical test method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003317 industrial substance Substances 0.000 description 2
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000004135 Bone phosphate Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- ZFVMWEVVKGLCIJ-UHFFFAOYSA-N bisphenol AF Chemical compound C1=CC(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C=C1 ZFVMWEVVKGLCIJ-UHFFFAOYSA-N 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a preparation method of novel protective clothing fabric, which sequentially comprises the working procedures of plastication, mixing, rubber compound crushing, rubber cement preparation, coating, vulcanization and fitting, wherein chloroprene rubber, nitrile rubber and chlorosulfonated polyethylene rubber are mixed according to respective corresponding formulas in the mixing process, repeated coating operation is carried out for many times after the rubber cement is prepared, semi-finished rubber fabric is obtained after vulcanization, and finally the semi-finished rubber fabric is fitted with a nylon film with the thickness of 0.05mm to complete the preparation of finished fabric. The novel protective clothing fabric prepared by the invention has a broad-spectrum protective effect and has a wider market application prospect.
Description
Technical Field
The invention relates to the field of chemical protection, in particular to a preparation method of a protective clothing fabric with reliable protective capability in a multi-chemical polluted environment.
Background
With the increasing development of economic activities in China, the chemical industry is used as an important economic support in China, the production, transportation, storage and use of hazardous chemicals are more and more frequent, and the demand of the fields of social production and labor protection on chemical protective clothing is huge. In addition to the demand for chemical protective clothing in the production link, the demand for chemical protective clothing for military, fire fighting, public security and other national forces for maintaining the social order safety and stability has also increased explosively in recent years.
The patent-202010390276.0 applied by the company in 2020 discloses a preparation method of a novel protective clothing fabric, which can effectively protect 6 common toxic chemical substances such as dimethyl sulfate, ammonia GAs, chlorine GAs, phosgene, hydrogen chloride, hydrocyanic acid and the like, and meets the protection requirements of GA770-2008 chemical protective clothing for firefighters.
However, it has a low protection level and does not have a broad-spectrum protection effect, and particularly has poor protection performance on acetone, carbon disulfide, dichloromethane, diethylamine, ethyl acetate and other substances, such as: the average permeation time of acetone was only 22min, and the average permeation time of dichloromethane was even only 10 min.
In addition, the "coating" process of the prior application (application No. 202010390276.0) is complicated, generally, in order to obtain a desired protective effect, it is necessary to repeatedly coat 8 or more layers of the mixed slurry layer on the base fabric, and since each layer is coated, it is necessary to separately heat and dry the base fabric in an oven, which greatly affects the production efficiency.
Disclosure of Invention
The invention provides a preparation method of a novel protective clothing fabric, and aims to solve the problem that the application field is narrow in the prior art.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a preparation method of novel protective clothing fabric comprises the following steps:
a. plasticating chloroprene rubber, nitrile rubber and chlorosulfonated polyethylene rubber respectively;
b. and (2) kneading, namely kneading the plasticated rubbers respectively, wherein:
adding zinc oxide, magnesium oxide, mica powder, white carbon black, stearic acid, zinc borate, antimony trioxide, rosin, coumarone resin and ethylene thiourea into the plasticated chloroprene rubber, and mixing to prepare chloroprene rubber compound. The weight portions are respectively as follows: 100 parts of chloroprene rubber, 4-6 parts of zinc oxide, 4-6 parts of magnesium oxide, 20-30 parts of mica powder, 10-20 parts of white carbon black, 0.5-1.5 parts of stearic acid, 30-50 parts of zinc borate, 30-50 parts of antimony trioxide, 1-3 parts of rosin, 4-8 parts of coumarone resin and 0.3-1 part of ethylene thiourea;
adding zinc oxide, stearic acid, argil, tetramethyl thiuram disulfide, N-cyclohexyl-2-benzothiazole sulfonamide and sulfur into the plasticated nitrile rubber, mixing and preparing nitrile rubber compound, wherein the weight parts of the nitrile rubber compound are respectively as follows: 100 parts of nitrile rubber, 4-6 parts of zinc oxide, 0.5-2 parts of stearic acid, 48-55 parts of pottery clay, 0.3-1 part of tetramethyl thiuram disulfide, 0.8-2 parts of N-cyclohexyl-2-benzothiazole sulfonamide and 1-2 parts of sulfur;
adding magnesium oxide, stearic acid, mica powder, white carbon black, dipentamethylenethiuram tetrasulfide, sulfur and zinc borate into the plasticated chlorosulfonated polyethylene rubber for mixing to prepare chlorosulfonated polyethylene rubber compound, wherein the weight parts of the chlorosulfonated polyethylene rubber compound are respectively as follows: 100 parts of chlorosulfonated polyethylene rubber, 4-6 parts of magnesium oxide, 0.8-2 parts of stearic acid, 18-22 parts of mica powder, 8-20 parts of white carbon black, 1-2 parts of dipentaerythritol tetrasulfide, 3-5 parts of pentaerythritol and 28-35 parts of zinc borate;
c. crushing the rubber compound, and respectively cutting the mixed chloroprene rubber compound, butyronitrile rubber compound and chlorosulfonated polyethylene rubber compound into particles with the particle size of less than or equal to 5 cm;
d. and (3) preparing mucilage, namely respectively dissolving the crushed particles in an organic solvent, wherein:
dissolving the neoprene rubber compound in toluene according to the weight ratio of 1.5;
dissolving the butyronitrile rubber compound in acetone according to the weight part ratio of 1.5;
dissolving chlorosulfonated polyethylene rubber compound in toluene according to the weight part ratio of 1;
e. coating, namely coating at least one layer of each mucilage on the front surface of the base cloth, and respectively heating and drying each layer of the mucilage to obtain a composite layer blank;
f. vulcanizing, namely putting the composite layer blank in an environment with the temperature of 150-180 ℃ and the vulcanization pressure of 40-60kg/cm < 2 > for vulcanization reaction for 3-5min to obtain a semi-finished fabric;
g. and (4) attaching, namely attaching the nylon film to the back of the base cloth, and finally obtaining the finished fabric.
In a preferred embodiment, in step b:
the chloroprene rubber and the compounding agent respectively comprise the following components in parts by weight: 100 parts of chloroprene rubber, 4 parts of zinc oxide, 5 parts of magnesium oxide, 20 parts of mica powder, 10 parts of white carbon black, 0.5 part of stearic acid, 40 parts of zinc borate, 40 parts of antimony trioxide, 1 part of rosin, 5 parts of coumarone resin and 0.5 part of ethylene thiourea;
the nitrile rubber and the compounding agent respectively comprise the following components in parts by weight: 100 parts of nitrile rubber, 5 parts of zinc oxide, 1 part of stearic acid, 50 parts of pottery clay, 0.5 part of tetramethyl thiuram disulfide, 1 part of N-cyclohexyl-2-benzothiazole sulfonamide and 1.5 parts of sulfur;
the chlorosulfonated polyethylene rubber and the compounding agent respectively comprise the following components in parts by weight: 100 parts of chlorosulfonated polyethylene rubber, 5 parts of magnesium oxide, 1 part of stearic acid, 20 parts of mica powder, 10 parts of white carbon black, 1.5 parts of dipentaerythritol tetrasulfide, 3 parts of pentaerythritol and 30 parts of zinc borate.
In a preferred embodiment, in step e, the front surface of the base fabric is coated with a layer of neoprene paste, two layers of nitrile paste, and a layer of chlorosulfonated polyethylene paste in this order from inside to outside.
In a preferred embodiment, the coating thickness of each layer of the adhesive cement is 0.02mm.
In a preferred embodiment, the neoprene paste is coated with a bridging agent in an amount of 5 parts by weight.
In a preferred embodiment, before step f, the front and back sides of the composite layer blank prepared in step e are sprayed with a rubber release agent.
In a preferred embodiment, in step f, the vulcanization temperature is 170 ℃ and the vulcanization pressure is 50kg/cm2 for 3 to 5min.
In a preferred embodiment, the base fabric is a polyester fiber.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
1. the protective clothing is prepared by taking chloroprene rubber, nitrile rubber and chlorosulfonated polyethylene rubber as main raw materials, mixing according to a corresponding formula, preparing corresponding mucilage, coating the mucilage on the front surface of base cloth layer by layer, adhering a nylon film on the back surface of the base cloth, and finally preparing a finished fabric. The novel environment-friendly chemical pollution prevention agent has a broad-spectrum protection effect, can really adapt to various complex chemical pollution environments, and has a wider market application prospect.
2. In the coating process, only about 4 layers of mixed rubber slurry layers are needed to be coated, so that the process is simpler, and the production efficiency is greatly improved.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
PREFERRED EMBODIMENTS
A preparation method of novel protective clothing fabric comprises the following steps:
1. plasticating, namely plasticating the chloroprene rubber, the nitrile rubber and the chlorosulfonated polyethylene rubber respectively to change the raw rubber from an elastomer into a plastic substance, and simultaneously prepare for subsequent mixing due to uniform plasticity of the raw rubber. The plastication temperature is generally 40-70 ℃ and the time is 10-20min.
2. Mixing, namely mixing chloroprene rubber, nitrile rubber and chlorosulfonated polyethylene rubber according to the formula requirements. The purpose is to supplement various additives into the raw rubber, so that the physical and chemical properties of the rubber compound meet the design requirements, the rubber compound meets the production process conditions of the rubber compound, and the rubber compound is convenient to produce. For example, the strengthening agent improves the strength, the plasticizer improves the flowing and accords with the hardness, the special auxiliary agent improves the resistivity and the flame retardant rate, and other auxiliary agents provide a good production process and the like. The specific formula is as follows:
chloroprene rubber formula (parts by mass)
| Neoprene | 100 | Zinc borate | 40 |
| Zinc oxide | 4 | Antimony trioxide | 40 |
| Magnesium oxide | 5 | Rosin | 1 |
| Mica powder | 20 | Coumarone resin | 5 |
| White carbon black | 10 | Ethylene thiourea | 0.5 |
| Stearic acid | 0.5 |
Nitrile rubber formula (parts by mass)
| Nitrile rubber | 100 | TMTD | 0.5 |
| Zinc oxide | 5 | CZ | 1 |
| Stearic acid | 1 | Sulfur | 1.5 |
| Argil | 50 |
Chlorosulfonated polyethylene rubber formula (parts by mass)
| Chlorosulfonated polyethylene rubber | 100 | White carbon black | 10 |
| Magnesium oxide | 5 | DPTT | 1.5 |
| Stearic acid | 1 | Pentaerythritol | 3 |
| Mica powder | 20 | Zinc borate | 30 |
Remarking: TMTD Tetramethylthiuram disulfide
CZ N-cyclohexyl-2-benzothiazolesulfenamide
DPTT dipentamethylenethiuram tetrasulfide
3. And crushing the rubber compound, and respectively cutting the chloroprene rubber compound, the butyronitrile rubber compound and the chlorosulfonated polyethylene rubber compound after mixing into particles with the diameter less than 5 centimeters. The main purpose is to facilitate the dissolution and the stirring and accelerate the dissolution speed.
4. Preparing mucilage, namely respectively dissolving the crushed particles in respective organic solvents, wherein:
dissolving the neoprene rubber compound in toluene according to the weight ratio of 1.5;
dissolving the butyronitrile rubber compound in acetone according to the weight part ratio of 1.5;
dissolving chlorosulfonated polyethylene rubber compound in toluene according to the weight part ratio of 1;
5. and (4) filtering, namely filtering undissolved particles and impurities in the various mucilages obtained in the step (4) respectively, wherein the main purpose of filtering is to ensure that the obtained mucilages are uniform and ensure that the mucilage meets the requirements of coating (coating).
6. And (3) adding a bridging agent into the chloroprene mixed rubber paste according to the weight part ratio of 5. Matching with the coumarone added in the mixing process. The combination of the two makes the peeling strength of the base cloth and the rubber interface as high as 1.8KN/m, the index of GA770-2008 chemical protective clothing for firemen is 0.78KN/m, and the test result is more than 2 times of the index value. If the bridging agent is completely sprayed, the higher peeling strength can be obtained, but the cost is very high because the bridging agent is expensive.
7. Coating, namely coating a layer of neoprene mixed rubber paste, two layers of butyronitrile mixed rubber paste and a layer of chlorosulfonated polyethylene mixed rubber paste on the front surface of a base fabric (the embodiment adopts polyester fibers with the thickness of 0.22 mm) from inside to outside in sequence.
Specifically, the method comprises the following steps:
(1) the neoprene mixed mucilage is coated on the front surface of the base cloth once, and the baking oven adopts continuous step type temperature rise and heating drying. The solvent in the mucilage is ensured to be volatilized as much as possible.
(2) And (3) coating the butyronitrile mixed rubber cement twice, and heating and drying. The adhesive tape is cooled by the cooling roller after coming out of the drying channel, so that the phenomenon of roller sticking of the adhesive tape is avoided.
(3) The surface layer is coated once by chlorosulfonated polyethylene rubber.
In the embodiment, the thickness of each single coating of the adhesive cement layers is 0.02mm, the coating process is carried out in a coating device, and each coating is carried out in a continuous oven for heating and drying, wherein the heating temperature is 100 ℃, and the duration is 12min. Thus, a composite layer blank is produced. It should be noted that, in the coating process, the thickness of each coating is generally 0.02mm, and the thickness of each coating is not more than 0.03mm, otherwise, the flow and thickness unevenness of the adhesive cement are easily caused.
8. And spraying a rubber release agent on the prepared composite layer blank. Prevent the adhesion between the rubber and the rubber.
9. And vulcanizing, namely vulcanizing the composite layer blank by adopting a drum vulcanizer, wherein the rubber surface is directly contacted with the stainless steel belt and the vulcanizing roller, and the vulcanized rubber fabric has soft and sanitary hand feeling on the surface, thereby thoroughly getting rid of the dirty, messy and poor images of the rubber fabric products produced by the pot vulcanization of the talcum powder. The specific process is as follows:
(1) cleaning the vulcanizing roller and the steel belt of the vulcanizing machine.
(2) Setting vulcanization parameters, wherein the vulcanization time is 3-5min, the vulcanization temperature is 170 ℃, and the vulcanization pressure is 50kg/cm < 2 >. Waiting for the equipment to reach the vulcanization condition of the product.
(3) And (4) flatly feeding the composite layer blank into a vulcanizing machine. The composite layer blank is contacted with the vulcanizing roller and the steel belt, and a fluorine release agent is adopted, so that the phenomena of rubber sticking to the roller and the steel belt are avoided.
(4) After vulcanization, a semi-finished fabric with neat appearance, uniform texture and good tightness is obtained.
10. And (3) attaching, namely attaching a 0.05mm nylon film to the back surface (the back surface of the base cloth) of the semi-finished fabric, and finally obtaining the finished fabric (the fabric of the protective clothing).
Combining the above steps, the protective clothing fabric of the embodiment can be produced, the protective clothing fabric, except the base cloth, has 4 rubber layers and a nylon film on the front and back sides, the thickness of the protective clothing fabric is only about 0.2mm, and the weight of the protective clothing fabric in unit area is 400g/m 2 Left and right. The product was chemically tested as follows:
table 1 shows the comparison of the measured results and the standard values of the chemical permeability of the finished fabrics in the preferred embodiments
As can be seen from the table 1, the protective clothing fabric can effectively protect 6 common toxic chemicals such as dimethyl sulfate, ammonia gas, chlorine gas, phosgene, hydrogen chloride and hydrocyanic acid, and has a good protection effect on 12 industrial chemicals such as acetone, acetonitrile carbon disulfide, and the like, so that the novel protective clothing fabric prepared by the preparation method disclosed by the invention has a broad-spectrum protection effect and a wider market application prospect.
Comparative example 1
Compared with the process of the preferred embodiment, the process of the first comparative example is mainly characterized in that the nylon film on the back surface of the base fabric is replaced by the rubber layer which is the same as the front surface of the base fabric, specifically, in the coating process, after the front surface of the base fabric is coated, the back surface of the base fabric is sequentially coated with a plurality of mixed rubber layers which are the same as the front surface of the base fabric from the inner layer to the outer layer by the same coating process, and finally the finished fabric is prepared.
The following table was obtained from chemical testing of the comparative example, a protective garment:
table 2 shows the comparison of the test results and the standard values of various chemical permeability performances of the finished fabrics of the comparative examples
As can be seen from table 2, the finished fabric prepared in the comparative example i can effectively protect various common toxic chemicals such as ammonia gas, chlorine gas, phosgene, hydrogen chloride and the like, but has an unsatisfactory protection effect on industrial chemicals such as acetone, acetonitrile carbon disulfide and the like.
Comparative example No. two
The process of the second comparative example is basically the same as that of the preferred embodiment, and the main difference is that in the second comparative example, the rubber in the preparation method of the protective clothing fabric, namely 202010390276.0 filed in 2020, is adopted. The method comprises the following specific steps:
1. plasticating, namely plasticating the fluororubber, the nitrile rubber, the butyl rubber and the chlorosulfonated polyethylene rubber respectively, so that the raw rubber is changed into a plastic substance from an elastomer, and meanwhile, the uniform plasticity of the raw rubber can be prepared for subsequent mixing. The plastication temperature is generally 40-70 ℃ and the time is 10-20min.
2. Mixing, namely mixing the fluororubber, the nitrile rubber and the chlorosulfonated polyethylene rubber according to the formula requirement. The purpose is to supplement various auxiliary agents into the raw rubber, so that the physical and chemical properties of the rubber compound meet the design requirements, the rubber compound meets the production process conditions of the rubber compound, and the rubber compound is convenient to produce. For example, the strengthening agent improves the strength, the plasticizer improves the flow and conforms to the hardness, the special auxiliary agent improves the resistivity and the flame retardant rate, and other auxiliary agents provide a good production process and the like. The specific formula is as follows:
fluororubber formula (parts by mass)
| Fluororubber | 100 | Magnesium oxide | 3 |
| White carbon black | 45 | Benzyl tri-basic phosphorus chloride | 0.8 |
| Parts of bisphenol AF | 12 | Coumarone | 5 |
Nitrile rubber formula (parts by mass)
| Nitrile rubber | 100 | TMTD | 0.5 |
| Zinc oxide | 5 | CZ | 1 |
| Stearic acid | 1 | Sulfur | 1.5 |
| Argil | 50 |
Butyl rubber formula (parts by mass)
| Butyl rubber | 100 | TMTD | 1 |
| Zinc oxide | 5 | DM | 1.5 |
| Stearic acid | 1 | Sulfur | 1.5 |
| Argil | 20 | Chlorinated paraffin | 30 |
Chlorosulfonated polyethylene (Heiparone) rubber formula (parts by mass)
| Chlorosulfonated polyethylene rubber | 100 | White carbon black | 1 |
| Magnesium oxide | 5 | DPTT | 1.5 |
| Stearic acid | 1 | Sulfur | 1.5 |
| Mica powder | 20 | Zinc borate | 30 |
Remarking: TMTD tetramethyl thiuram disulfide
CZ N-cyclohexyl-2-benzothiazolesulfenamide
DM 2, 2' -dithiodibenzothiazyl
DPTT dipentamethylenethiuram tetrasulfide
3. And crushing the rubber compound, and respectively cutting the compounded fluororubber rubber compound, butyronitrile rubber compound, butyl rubber compound and chlorosulfonated polyethylene rubber compound into particles with the particle diameter less than 5 centimeters. The main purpose is to facilitate the dissolution and the stirring and accelerate the dissolution speed.
4. And (3) preparing mucilage, namely respectively dissolving the crushed particles in respective organic solvents, wherein:
dissolving the fluororubber mixed rubber into acetone according to the weight part ratio of 1.2;
dissolving the butyronitrile rubber compound into acetone according to the weight part ratio of 1.5;
dissolving the butyl rubber compound into solvent gasoline according to the weight part ratio of 0.9;
dissolving chlorosulfonated polyethylene rubber compound in toluene according to the weight part ratio of 1;
5. and (4) filtering, namely filtering undissolved particles and impurities in the various mucilages obtained in the step (4) respectively, wherein the main purpose of filtering is to ensure that the obtained mucilages are uniform and ensure that the mucilage meets the requirements of coating (coating).
6. Adding a bridging agent into the fluororubber mixing rubber paste according to the weight ratio of 5. Matching with the coumarone added in the mixing process. The combination of the two makes the peeling strength of the base cloth and the rubber interface as high as 2.3KN/m, the index of GA770-2008 chemical protective clothing for firemen is 0.78KN/m, and the test result is three times that of the index. If the bridging agent is completely sprayed, the higher peeling strength can be obtained, but the cost is very high because the bridging agent is expensive.
7. Coating, namely coating a layer of fluororubber mixed rubber paste, two layers of butyronitrile mixed rubber paste, two layers of butyl mixed rubber paste and two layers of chlorosulfonated polyethylene mixed rubber paste on the front surface of base cloth (polyester fibers with the thickness of 0.2mm are adopted in the embodiment) from inside to outside in sequence;
specifically;
(1) the fluororubber mixing mucilage is coated on the front surface of the base cloth once, and the oven is heated and dried in a continuous step mode. The solvent in the mucilage is ensured to be volatilized as much as possible.
(2) And (3) coating the mixture twice by adopting butyronitrile mixed rubber cement. The oven adopts continuous step-type heating and heating drying. The solvent in the mucilage is ensured to be volatilized as much as possible.
(3) And (3) coating the mixture twice by using butyl mixing mucilage, and heating and drying the mixture. The adhesive tape is cooled by the cooling roller after coming out of the drying channel, so that the phenomenon of roller sticking of the adhesive tape is avoided.
(4) The surface layer is coated twice by chlorosulfonated polyethylene rubber.
In the embodiment, the thickness of each single coating of the adhesive cement layers is 0.02mm, the coating process is carried out in a coating device, and each coating is carried out in a continuous oven for heating and drying, wherein the heating temperature is 100 ℃, and the duration is 12min. Thus, a composite layer blank is produced. It should be noted that, in the coating process of the coating device, the thickness of each coating is generally between 0.01-0.02 mm, and the thickness of each coating is not more than 0.02mm, otherwise, the flowing and thickness unevenness of the adhesive slurry are easily caused.
8. And spraying a rubber release agent on the prepared composite layer blank. Preventing the adhesion between rubber and rubber.
9. And vulcanizing, namely vulcanizing the composite layer blank by adopting a drum vulcanizer, wherein the rubber surface is directly contacted with the stainless steel belt and the vulcanizing roller, and the vulcanized rubber fabric has soft and sanitary hand feeling on the surface, thereby thoroughly getting rid of the dirty, messy and poor images of the rubber fabric products produced by the pot vulcanization of the talcum powder. The specific process is as follows:
(1) cleaning the vulcanizing roller and the steel belt of the vulcanizing machine.
(2) Setting vulcanization parameters, wherein the vulcanization time is 3-5min, the vulcanization temperature is 170 ℃, and the vulcanization pressure is 50kg/cm < 2 >. Waiting for the equipment to reach the vulcanization condition of the product.
(3) And (3) flatly feeding the composite layer blank into a vulcanizing machine. The composite layer blank is contacted with the vulcanizing roller and the steel belt, and a fluorine release agent is adopted, so that the phenomena that rubber is adhered to the roller and the steel belt are avoided.
(4) After vulcanization, a chemical-resistant adhesive tape with neat appearance, uniform texture and good compactness is obtained.
10. And (3) attaching, namely attaching the vulcanized rubber fabric to a nylon film, wherein the front surface is provided with a rubber layer, and the back surface is provided with the nylon film.
Chemical testing of the protective garment fabric made in this comparative example two resulted in table 3:
the protective clothing fabric prepared in the comparative example II is basically equivalent to the protective clothing fabric prepared in the preferred embodiment in protective performance, and also has a broad-spectrum protective effect.
However, the rubber of the comparative example II has more types, more rubber coating times, relatively complex process and relatively low efficiency.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. A preparation method of novel protective clothing fabric is characterized by comprising the following steps:
a. plasticating chloroprene rubber, nitrile rubber and chlorosulfonated polyethylene rubber respectively;
b. and (2) kneading, namely kneading the plasticated rubbers respectively, wherein:
adding zinc oxide, magnesium oxide, mica powder, white carbon black, stearic acid, zinc borate, antimony trioxide, rosin, coumarone resin and ethylene thiourea into the plasticated chloroprene rubber for mixing to prepare chloroprene rubber compound, wherein the parts by weight of the chloroprene rubber compound are as follows: 100 parts of chloroprene rubber, 4-6 parts of zinc oxide, 4-6 parts of magnesium oxide, 20-30 parts of mica powder, 10-20 parts of white carbon black, 0.5-1.5 parts of stearic acid, 30-50 parts of zinc borate, 30-50 parts of antimony trioxide, 1-3 parts of rosin, 4-8 parts of coumarone resin and 0.3-1 part of ethylene thiourea;
adding zinc oxide, stearic acid, argil, tetramethyl thiuram disulfide, N-cyclohexyl-2-benzothiazole sulfonamide and sulfur into the plasticated nitrile rubber, mixing and preparing nitrile rubber compound, wherein the weight parts of the nitrile rubber compound are respectively as follows: 100 parts of nitrile rubber, 4-6 parts of zinc oxide, 0.5-2 parts of stearic acid, 48-55 parts of pottery clay, 0.3-1 part of tetramethyl thiuram disulfide, 0.8-2 parts of N-cyclohexyl-2-benzothiazole sulfonamide and 1-2 parts of sulfur;
adding magnesium oxide, stearic acid, mica powder, white carbon black, dipentamethylenethiuram tetrasulfide, sulfur and zinc borate into the plasticated chlorosulfonated polyethylene rubber for mixing to prepare chlorosulfonated polyethylene rubber compound, wherein the weight parts of the chlorosulfonated polyethylene rubber compound are respectively as follows: 100 parts of chlorosulfonated polyethylene rubber, 4-6 parts of magnesium oxide, 0.8-2 parts of stearic acid, 18-22 parts of mica powder, 8-20 parts of white carbon black, 1-2 parts of dipentaerythritol tetrasulfide, 3-5 parts of pentaerythritol and 28-35 parts of zinc borate;
c. crushing the rubber compound, and respectively cutting the mixed chloroprene rubber compound, butyronitrile rubber compound and chlorosulfonated polyethylene rubber compound into particles with the particle size of less than or equal to 5 cm;
d. and (3) preparing mucilage, namely respectively dissolving the crushed particles in an organic solvent, wherein:
dissolving the chloroprene rubber compound into toluene according to the weight part ratio of 1.5;
dissolving the butyronitrile rubber compound into acetone according to the weight part ratio of 1.5;
dissolving chlorosulfonated polyethylene rubber compound in toluene according to the weight part ratio of 1;
e. coating, namely coating at least one layer of each mucilage on the front surface of the base cloth, and respectively heating and drying each layer of the mucilage to obtain a composite layer blank;
f. vulcanizing, namely putting the composite layer blank in an environment with the temperature of 150-180 ℃ and the vulcanization pressure of 40-60kg/cm < 2 > for vulcanization reaction for 3-5min to obtain a semi-finished fabric;
g. and (4) attaching, namely attaching the nylon film to the back of the base cloth, and finally obtaining the finished fabric.
2. The method for preparing the protective clothing fabric according to claim 1, characterized in that: in the step (b), the step (c),
the chloroprene rubber and the compounding agent respectively comprise the following components in parts by weight: 100 parts of neoprene, 4 parts of zinc oxide, 5 parts of magnesium oxide, 20 parts of mica powder, 10 parts of white carbon black, 0.5 part of stearic acid, 40 parts of zinc borate, 40 parts of antimony trioxide, 1 part of rosin, 5 parts of coumarone resin and 0.5 part of ethylene thiourea;
the nitrile rubber and the compounding agent respectively comprise the following components in parts by weight: 100 parts of nitrile rubber, 5 parts of zinc oxide, 1 part of stearic acid, 50 parts of pottery clay, 0.5 part of tetramethyl thiuram disulfide, 1 part of N-cyclohexyl-2-benzothiazole sulfonamide and 1.5 parts of sulfur;
the chlorosulfonated polyethylene rubber and the compounding agent are respectively in parts by weight: 100 parts of chlorosulfonated polyethylene rubber, 5 parts of magnesium oxide, 1 part of stearic acid, 20 parts of mica powder, 10 parts of white carbon black, 1.5 parts of dipentaerythritol tetrasulfide, 3 parts of pentaerythritol and 30 parts of zinc borate.
3. The method for preparing the protective clothing fabric according to claim 1, characterized in that: and e, sequentially coating a layer of chloroprene mixed rubber cement, two layers of butyronitrile mixed rubber cement and a layer of chlorosulfonated polyethylene mixed rubber cement on the front surface of the base fabric from inside to outside.
4. The method for preparing the fabric for the protective clothing according to claim 3, characterized in that: the coating thickness of each layer of adhesive cement is 0.02mm.
5. The method for preparing the fabric for the protective clothing according to claim 3, characterized in that: before coating, the chloroprene mixing rubber cement is added with a bridging agent according to the weight ratio of 5.
6. The method for preparing a fabric for protective clothing according to any one of claims 1 to 5, characterized in that: before step f, spraying a rubber release agent on the front surface of the composite layer blank prepared in the step e.
7. The method for preparing the fabric for the protective clothing according to claim 1, which is characterized in that: in the step f, the vulcanization temperature is 170 ℃, the vulcanization pressure is 50kg/cm < 2 >, and the time lasts for 3-5min.
8. The method for preparing the protective clothing fabric according to claim 1, characterized in that: the base cloth is polyester fiber.
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| TWM583376U (en) * | 2016-01-08 | 2019-09-11 | 厚生股份有限公司 | Weather-resistant and fire-retardant composite structure |
| CN212270512U (en) * | 2020-05-08 | 2021-01-01 | 浙江赛飞普诺科技发展有限公司 | Protective clothing fabric |
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| US4943475A (en) * | 1986-07-23 | 1990-07-24 | Membrane Technology & Research, Inc. | Multilayer composite protective fabric material and use in protective clothing |
| CN102605628A (en) * | 2012-02-28 | 2012-07-25 | 陕西理工学院 | Fabric for individual protective clothing and preparation method of fabric |
| CN104877244A (en) * | 2015-06-10 | 2015-09-02 | 深圳市佳宝金有限公司 | Compound rubber protective belt for bridge, preparation method and application thereof |
| TWM583376U (en) * | 2016-01-08 | 2019-09-11 | 厚生股份有限公司 | Weather-resistant and fire-retardant composite structure |
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| CN212270512U (en) * | 2020-05-08 | 2021-01-01 | 浙江赛飞普诺科技发展有限公司 | Protective clothing fabric |
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