CN109897241A - Gas pressure regulator, governor epithelium sizing material and epithelium preparation process - Google Patents
Gas pressure regulator, governor epithelium sizing material and epithelium preparation process Download PDFInfo
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- CN109897241A CN109897241A CN201910182869.5A CN201910182869A CN109897241A CN 109897241 A CN109897241 A CN 109897241A CN 201910182869 A CN201910182869 A CN 201910182869A CN 109897241 A CN109897241 A CN 109897241A
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- 210000000981 epithelium Anatomy 0.000 title claims abstract description 71
- 239000000463 material Substances 0.000 title claims abstract description 66
- 238000004513 sizing Methods 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 73
- 239000011347 resin Substances 0.000 claims abstract description 73
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 19
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004014 plasticizer Substances 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 11
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 10
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 10
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000008117 stearic acid Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 9
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 239000011787 zinc oxide Substances 0.000 claims abstract description 7
- 238000005987 sulfurization reaction Methods 0.000 claims abstract description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 48
- 239000007789 gas Substances 0.000 claims description 30
- 239000003292 glue Substances 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 27
- -1 alkyl phenolic resin Chemical group 0.000 claims description 22
- 229920001568 phenolic resin Polymers 0.000 claims description 22
- 239000005011 phenolic resin Substances 0.000 claims description 20
- 238000004073 vulcanization Methods 0.000 claims description 12
- MHKLKWCYGIBEQF-UHFFFAOYSA-N 4-(1,3-benzothiazol-2-ylsulfanyl)morpholine Chemical compound C1COCCN1SC1=NC2=CC=CC=C2S1 MHKLKWCYGIBEQF-UHFFFAOYSA-N 0.000 claims description 11
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 9
- 238000005470 impregnation Methods 0.000 claims description 9
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 9
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003784 tall oil Substances 0.000 claims description 7
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 6
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 239000011297 pine tar Chemical group 0.000 claims description 5
- 229940068124 pine tar Drugs 0.000 claims description 5
- 241001441571 Hiodontidae Species 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 230000003712 anti-aging effect Effects 0.000 claims description 4
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 4
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 150000003863 ammonium salts Chemical class 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 150000003557 thiazoles Chemical class 0.000 claims description 3
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical group CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-UHFFFAOYSA-N 0.000 claims 1
- 244000226021 Anacardium occidentale Species 0.000 claims 1
- 235000020226 cashew nut Nutrition 0.000 claims 1
- 229910052622 kaolinite Inorganic materials 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 7
- 239000010985 leather Substances 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 229920001971 elastomer Polymers 0.000 description 9
- 238000009826 distribution Methods 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- LEVWYRKDKASIDU-IMJSIDKUSA-N L-cystine Chemical compound [O-]C(=O)[C@@H]([NH3+])CSSC[C@H]([NH3+])C([O-])=O LEVWYRKDKASIDU-IMJSIDKUSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
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- 229960003067 cystine Drugs 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 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 1
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- 238000005461 lubrication Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008825 perceptual sensitivity Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
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- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
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Abstract
The present invention is thinner for epithelium, intensity and elastic lower, sensitivity decrease, and the problem of reduced service life, provides a kind of gas pressure regulator, governor epithelium sizing material and epithelium preparation process, belongs to rubbery membrana dermalis technical field.The group of the sizing material is as nitrile rubber: 100 parts；Plasticizer: 10-30 parts；Tackifying resin: 10-30 parts；Reinforced resin: 5-20 parts；Reinforced filling: 10-30 parts；Stearic acid: 0.5-2 parts；Zinc oxide: 4-6 parts；Antioxidant 4010NA: 1.5-3 parts；Vulcanizing agent: 1.5-5 parts；Promotor: 1.0-3.0 parts；0.1-2 parts of the curing agent of reinforced resin.Preparation method: step 1: sizing material preparation；Step 2: enhancement layer double sided stick adhesive；Step 3: diaphragm sulfuration process.The present invention is allowed to have both low mooney viscosity, high ductibility and high intensity simultaneously by the design of unique sizing compound formula；Biaxial stress stretches control to enhancement layer in length and breadth, it is ensured that enhancement layer fibre gap is uniform；The gas pressure regulator, governor leather film thickness of preparation is 0.3-0.5mm, has both highly sensitive, high resiliency and long life.
Description
Technical field
The invention belongs to rubbery membrana dermalis technical fields, and in particular to a kind of gas pressure regulator, governor epithelium sizing material and epithelium prepare work
Skill.
Background technique
Natural gas before being transported to resident's stove by oil gas field high pressure line is needed through gas pressure regulator, governor (being commonly called as pressure reducing valve)
Decompression rear can be used step by step.Epithelium is the critical component of pressure regulator, concerning gas safe, it be located in valve upper bottom flange it
Between, the space that upper and lower valve deck surrounds is divided into two gas chambers up and down, automatic sensing gaseous-pressure fluctuates when work, by convex
Recessed reciprocating motion drives valve port pad ON/OFF to automatically adjust outlet pressure, maintains its pressure balance.Due to continuing when work
It moves back and forth, epithelium is pressure regulator vulnerable part, and gaseous-pressure is out of control if damage, gently then causes gas leakage and gas appliance
Damage, it is heavy then cause casualties, even fire and property loss.
Pressure regulator epithelium performance superiority and inferiority determines pressure regulator sensitivity and service life, and pressure perceptual sensitivity depends on epithelium thickness
Degree and elasticity, epithelium is thinner and elastic more good then sensitivity is higher.But epithelium is thinner, intensity especially flexual strength and elasticity
It is lower, thus reduced service life, and sensitivity decrease.Country's pressure regulator epithelium locks into thickness and intensity at present and elasticity cares for
This predicament losing that, cannot taking into account, product thickness big (typically larger than 1.5mm), service life be short, pressure regulation sensitivity and precision are low.Such as
What solves the contradictory relation between leather film thickness and intensity (tensile strength, flexual strength) and elasticity, and exploitation is highly sensitive, long-lived
The ultra-thin diaphragm of life, is current urgent problem to be solved.
Summary of the invention
It is thinner for epithelium, intensity and elastic lower, sensitivity decrease, and the above problem of reduced service life, this
Invention provides a kind of gas pressure regulator, governor epithelium sizing material and gas pressure regulator, governor epithelium preparation process, and the thickness of the epithelium of preparation is in 0.3-
When within the scope of 0.5mm, and has the advantages that highly sensitive, the high-intensitive, high life, performance is better than national standard.
To achieve the above object, the invention adopts the following technical scheme:
One aspect of the present invention provides a kind of gas pressure regulator, governor epithelium sizing material, by weight, composed of the following components:
Preparing epithelium sizing material includes the component using following parts by weight: nitrile rubber: 100 parts；Plasticizer: 10-30 parts；Increase
Viscosity resin: 10-30 parts；Reinforced resin: 5-20 parts；Reinforced filling: 10-30 parts；Stearic acid: 0.5-2 parts；Zinc oxide: 4-6 parts；
Antioxidant 4010NA: 1.5-3 parts；Vulcanizing agent: 1.5-5 parts；Promotor: 1.0-3.0 parts；0.1-2 parts of the curing agent of reinforced resin；
The nitrile rubber is made of the glue of three kinds of mooney viscosities, is respectively as follows: 30,60 and 80, weight percent is followed successively by 10-
30%, 40-65% and 10-40%；Preferred weight percent is followed successively by 10-20%, 45-60% and 20-40%；Preferred weight hundred
Ratio is divided to be followed successively by 10-15%, 50-60% and 25-35%；
The plasticizer is dioctyl phthalate；
The tackifying resin is that alkyl phenolic resin and pine tar form, and the weight percent of alkyl phenolic resin is 25-
80%；It is preferred that 50-70%；It is preferred that 60-70%；
The reinforced resin is epoxy-modified alkylphenol formaldehyde resin, tall oil modified tert butyl phenolic resin, waist
It is one or more of in the modified tert butyl phenolic resin of shell oil；It is preferred that reinforced resin is epoxy-modified alkyl phenol formaldehyde tree
Rouge；More preferable reinforced resin is that epoxy-modified alkylphenol formaldehyde resin is used in combination with tall oil modified tert butyl phenolic resin,
The weight percent of epoxy-modified alkylphenol formaldehyde resin is 50-80%；It is preferred that 55-75%；
These phenol-formaldehyde resin modifieds are as the excellent properties of reinforced resin: its changeable chain structure and the degree of polymerization assign
Its superpower variable physical crosslinking ability, meanwhile, by means of the effect of curing agent (hexamethylenetetramine), and can be in sizing material
Chemical crosslinking network is formed, reinforcing effect is preferably played.Meanwhile this kind of resin belongs to oligomer when uncrosslinked, both facilitates
Improve rubber mobility can be improved its plasticity again.
The reinforced filling is one or more of nano kaoline, nano montmorillonite, nano talc；It is preferred that reinforcement
Filler is nano kaoline；More preferable reinforced filling is that nano kaoline is used in combination with nano montmorillonite, the weight of nano kaoline
Percentage is 60-80%；It is preferred that 65-75%；
The vulcanizing agent for stating nitrile rubber is insoluble sulfur；
The curing agent of the reinforced resin is hexamethylenetetramine；
The promotor is one or more of sulfenamide, thiazoles, thiurams；Further select time sulphonyl
NOBS in amine selects the M in thiazoles, selects the TMTD in thiurams；It is preferred that NOBS is used alone；More preferable NOBS
It is used in combination with TMTD, the weight percent of NOBS is 70-90%；It is preferred that 85-90%.
The assembly parts such as the valve rod and bolt that contact therewith under working condition in view of epithelium are required to oil lubrication,
Main glue selects nitrile rubber.The mooney viscosity of nitrile rubber is constituted and weight percent is based on molecular weight and its distribution to processing performance
With the affecting laws of mechanical property, system research resin molecular weight and molecular weight distribution and sizing material melt viscosity and melt strength,
After the relationship the wellability and epithelium mechanical property of enhancing cloth, molecular weight and its distribution are designed, sizing material is made
Not only had good mobility and plasticity to meet rubberizing processing performance, but also assigned high intensity and high resiliency after epithelium vulcanization.
The present invention carries out the rheological property and melt ductility (melt strength) of sizing material with rheology regulation theory simultaneously
Coordinated regulation.It is used in combination using the raw rubber of different mooney viscosities, different acrylonitrile contents, sizing material molecular weight and its distribution is set
Meter forms unique Gaussian lineshape distribution.Higher mooney viscosity resin is main glue in, supplemented by low mooney viscosity glue.Low door
Buddhist nun's viscosity glue provides good fluidity, and high Mooney viscosity glue undertakes tie molecule effect and provides high ductibility and high fondant-strength,
Thus guarantee sizing material plasticity and high intensity.Meanwhile by solvation good between plasticizer and rubber macromolecule with
Sizing material plasticity is improved, melt strength and ductility are improved by the physical action between reinforced resin and rubber macromolecule, and be aided with
Tackifying resin further increases plasticity and melt strength, so that it is strong so that sizing material is reached low mooney viscosity, high ductibility and high melt
The purpose of degree.
Meanwhile the coordinated regulation by assisting main glue vulcanization crosslinking network and reinforced resin cross-linked network, with sulfur-crosslinked
To determine cured properties based on network, supplemented by the reinforced resin network that is formed with hexamethylenetetramine, it is partially filled in, portion
Divide and be covered among vulcanized network, to further improve the intensity of thin article.
Further, the reinforced filling is surface-treated by organic ammonium salt.
Further, the partial size of the reinforced filling is 10-100nm.
Nano kaoline, montmorillonite and the talcum powder being surface-treated using organic ammonium salt, partial size is 10-100nm, with base
Body and other component compatibilities are good, contribute to sizing material rheological property and product properties, are different from micron pottery in the prior art
Native reinforced filling and white carbon black.For micron clay filler because partial size is coarse, improving to product properties less even has bad effect.It is white
Though carbon black partial size is tiny, with matrix poor compatibility, difficulties in dispersion influences reinforcing effect.Moreover, kaolin, montmorillonite and cunning
Mountain flour is laminal filter, is especially suitable for the raising of epithelium based article barrier property.It is preferred that the helpfulness of nano-sheet filler exists
Filler is inclined to, which in sheet products, in, the moulding process and filler shape feature of sheet products is parallel to level distribution, this
Raising intensity is not only improved to be conducive to improve its barrier property again.
Further, a kind of epithelium sizing material is provided, can control using leather film thickness prepared by the sizing material in 0.3-
Within the scope of 0.37mm, performance meets requirement.The epithelium sizing material comprises the following components in parts by weight: 100 parts of nitrile rubber；Plasticising
Agent: 12-25 parts；Tackifying resin: 15-25 parts；Reinforced resin: 10-15 parts；Reinforced filling: 15-25 parts；Stearic acid: 1.0-2.0
Part；Zinc oxide: 4-6 parts；Antioxidant 4010NA: 2-2.5 parts；Vulcanizing agent: 2.0-3.0 parts；Promotor: 1.0-2.5 parts；Reinforcement tree
0.2-1.0 parts of the curing agent of rouge；
The nitrile rubber is made of the glue that mooney viscosity is respectively as follows: 30,60 and 80, weight percent be followed successively by 10-15%,
50-60% and 25-35%；
The tackifying resin is that alkyl phenolic resin and pine tar form, and the weight percent of alkyl phenolic resin is 60-
70%；
The reinforced resin be epoxy-modified alkylphenol formaldehyde resin and tall oil modified tert butyl phenolic resin simultaneously
With the weight percent of epoxy-modified alkylphenol formaldehyde resin is 55-75%；
The reinforced filling is that nano kaoline is used in combination with nano montmorillonite, and the weight percent of nano kaoline is 65-
75%；
The promotor is that NOBS and TMTD is used in combination, and the weight percent of NOBS is 85-90%.
Further, a kind of epithelium sizing material is provided, the leather film thickness 0.3-0.33mm range prepared using the formulated rubber material
Interior, performance meets requirement.The epithelium sizing material comprises the following components in parts by weight: 100 parts of nitrile rubber；Plasticizer: 18-25
Part；Tackifying resin: 20-25 parts；Reinforced resin: 12-15 parts；Reinforced filling: 15-25 parts；Stearic acid: 1.0-2.0 parts；Oxidation
Zinc: 4-6 parts；Antioxidant 4010NA: 2-2.5 parts；Vulcanizing agent: 2.0-3.0 parts；Promotor: 1.0-2.5 parts；Reinforced resin is consolidated
0.2-1.0 parts of agent；
Weight percent is followed successively by 10-15%, 50-60% and 30-40%；
The tackifying resin is that alkyl phenolic resin and pine tar form, and the weight percent of alkyl phenolic resin is 60-
70%；
The reinforced resin be epoxy-modified alkylphenol formaldehyde resin and tall oil modified tert butyl phenolic resin simultaneously
With the weight percent of epoxy-modified alkylphenol formaldehyde resin is 60-70%；
The reinforced filling nano kaoline is used in combination with nano montmorillonite, and the weight percent of nano kaoline is 65-
75%；
The promotor is that NOBS and TMTD is used in combination, and the weight percent of NOBS is 85-90%.
Further, a kind of epithelium sizing material is provided, using the formulated rubber material prepare leather film thickness 0.3mm when, satisfaction makes
With requiring.The epithelium sizing material comprises the following components in parts by weight: 100 parts of nitrile rubber；Plasticizer: 20-25 parts；Tackifying resin: 20-
25 parts；Reinforced resin: 12-15 parts；Reinforced filling: 15-25 parts；Stearic acid: 1.0-2.0 parts；Zinc oxide: 4-6 parts；Anti-aging agent
4010NA:2-2.5 part；Vulcanizing agent: 2.0-3.0 parts；Promotor: 1.0-2.5 parts；0.2-1.0 parts of the curing agent of reinforced resin；
Weight percent is followed successively by 10-15%, 50-60% and 33-37%；
The tackifying resin is that alkyl phenolic resin and pine tar form, and the weight percent of alkyl phenolic resin is 60-
70%；
The reinforced resin be epoxy-modified alkylphenol formaldehyde resin and tall oil modified tert butyl phenolic resin simultaneously
With the weight percent of epoxy-modified alkylphenol formaldehyde resin is 60-70%；
The reinforced filling nano kaoline is used in combination with nano montmorillonite, and the weight percent of nano kaoline is 65-
75%；
The promotor is that NOBS and TMTD is used in combination, and the weight percent of NOBS is 85-90%.
Another aspect of the present invention provides a kind of preparation process of gas pressure regulator, governor epithelium, including sizing material preparation, enhancement layer pair
Face paste glue and diaphragm sulfuration process step, the specific steps are as follows:
Step 1: sizing material preparation
(1) first segment is kneaded: mixer set temperature is 80-100 DEG C, revolving speed 75-85rpm, according to above-mentioned combustion gas tune
Depressor epithelium sizing compound formula is added nitrile rubber, reinforced filling and plasticizer is added together after softening, oxygen is sequentially added after material feeding
Change zinc, stearic acid and anti-aging agent, tackifying resin, reinforced resin and its curing agent are added after material feeding, continues to go out after being kneaded 5-7min
Material, control dump temperature are 155 ± 3 DEG C, obtain masterbatch；
(2) second segment is kneaded: mixer is used, set temperature is 70-85 DEG C, revolving speed 30-35rpm, and masterbatch is added,
Vulcanizing agent and promotor are added after softening, continues to be kneaded 5-15min, dumping, bottom sheet, dump temperature is no more than 100 DEG C；
Step 2: enhancement layer double sided stick adhesive
Enhancement layer is the polyester plain weave fabric of 0.11 ± 0.01mm of thickness；It is stretched when enhancement layer work feed using biaxial stress in length and breadth
Control；
It is surface-treated before enhancement layer rubberizing using " heat treatment process after first RFL impregnation ", RFL impregnates formula of liquid are as follows:
The molar ratio of resorcinol and formaldehyde is 1:2；Nitrile rubber content of latex is 15%-20%, pH value 8-10；Control covers glue amount and is
5%-6%；
Using four-roll calender double sided stick adhesive technique, calender roller temperature set temperature is 75-90 DEG C, and practical roller temperature control exists
Lower than 110 DEG C), the temperature of the second roller and third roller is 2-5 DEG C higher than the first roller and four-roller；Sizing material is respectively placed in the first roller and
In four-roller, at 100 ± 5 DEG C, sizing material passes through the first roller and the second roller gap and the 4th and the third roller gap time-division for temperature control
Glue film sticking adhesive layer, upper and lower sticking adhesive layer and enhancement layer rubberizing Xing Cheng not completed when passing through second, third roller gap and forms tune up and down
The roller gap of depressor epithelium base, the second roller and third roller is controlled in 0.25-0.47mm；Roller speed ratio between roller are as follows: first
Roller/the second roller=1/1.1~1/1.2；Second roller/third roller=1.03/1~1.05/1；Third roller/four-roller=1.15/1~
1.2/1；
Step 3: diaphragm sulfuration process
Vulcameter vulcanization is put into after epithelium base is cut, curing temperature is 155 DEG C, vulcanization time 5-15min, is made and adjusts
Depressor epithelium.
The key technology of Ultrathin skin film preparation is properties of rubber design.Since ultra-thin epithelium fiber cloth is thin and compact (thick
Degree is 0.11mm), and rubberizing film thickness < 0.19mm (if calculating according to thickness 0.5mm) up and down, this is to the plasticity of sizing material and molten
Body intensity, sizing material are proposed and are strictly wanted to the infiltration of enhancement layer and caking property and roller temperature and gap control precision controlling
It asks.The present invention carries out collaboration tune with the theoretical rheological property and melt ductility (melt strength) to sizing material of rheology regulation simultaneously
Control.It is used in combination, sizing material molecular weight and its distribution is designed, shape using the raw rubber of different mooney viscosities, different acrylonitrile contents
It is distributed at unique Gaussian lineshape.Higher mooney viscosity resin is main glue in, supplemented by low mooney viscosity glue, low mooney viscosity
Glue provides good fluidity, and high Mooney viscosity glue undertakes tie molecule effect and provides high ductibility and high fondant-strength, thus comes
Guarantee sizing material plasticity and high intensity.Meanwhile being existed using plasticizer, tackifying resin, reinforced resin and reinforced filling to sizing material
Mooney viscosity, ductility and melt strength further progress coordinated regulation under different temperatures and shearing make sizing material both and have and is low
Mooney viscosity and good ductility and high melt strength, when calendering forms uniform and thin and high-intensitive glue film rubberizing
Layer, and glue film has good wellability and caking property to enhancing fabric, can impregnate fabric in finite time and complete fitting process, together
When, the nitrile rubber macromolecular of high molecular weight block assigns the high melt strength of glue-line and viscoplasticity and epithelium vulcanization again after
High-intensitive and high resiliency.Reinforced resin also forms the three-dimensional net structure being complementary to one another with sizing material network in sizing material, and dispersion is answered
Power, the product strength after improving glue film intensity and vulcanization.
The feature of enhancement layer: (1) it is thin and high-strength, meet equipment when product properties is required and produced and answers force request；(2) increase
Strong layer makes sizing material to it with high wellability and caking property after RFL is surface-treated, it is ensured that the uniform strong interfaces of impregnation are viscous
Knot, ensure that product strength；(3) plain cloth, if in the present invention according to ultra-thin twill if be not suitable for rubberizing technique, the result is that
It is difficult to be impregnated with when being bonded impregnation.
Biaxial tension control when enhancement layer rubberizing has ensured penetrating impregnation and interface bond strength.Because with a thickness of
Fine and close, fibre gap very little between its longitude and latitude fiber of the thin and compact enhancement layer of 0.11mm, it is desirable that sizing material must have fabric
High wellability and caking property, otherwise easily impregnation is irregular or interfacial adhesion loosely.Enhancement layer process of surface treatment has adhesive plaster
Have good dynamic fatigue resistance energy and with good adhesive property after glue film rubberizing.It is adopted when thin and compact enhancement layer work feed
It is stretched and is controlled with biaxial stress in length and breadth, keep its longitude and latitude fibre gap uniform, it is ensured that be impregnated with glue and form good interface bonding, avoid
Impregnation caused by fiber axial clearance caused by the simple tension generallyd use when work feed reduces is impermeable.
In sulfuration process use cross-linked network regulate and control, regulate and control vulcanizate in vulcanization key type and ratio, make polysulfide bond,
Monosulfidic bond and cystine linkage ratio are appropriate, and epithelium intensity is laid equal stress on elasticity, and with preferable dynamic property and moderate resistance to
Thermal-oxidative aging property.
The present invention is allowed to for leather film thickness and this opposition contradiction of intensity/elasticity by the design of unique sizing compound formula
High intensity after having both low mooney viscosity, high ductibility (high fondant-strength) and product vulcanization simultaneously, had both met ultra-thin epithelium pair
The technique of sizing material requires to meet product properties again.Enhancement layer is answered when being bonded impregnation with glue film, to enhancement layer using two-way in length and breadth
Power stretches control, it is ensured that enhancement layer fibre gap is uniform.Gas pressure regulator, governor leather film thickness prepared by the present invention is 0.3-0.5mm,
The contradiction between thickness and intensity and elasticity is balanced, highly sensitive, high resiliency and long life are had both.
Specific embodiment
The present invention is described in further details combined with specific embodiments below.
The preparation of Examples 1 to 4 gas pressure regulator, governor epithelium is according to epithelium sizing compound formula described in table 1.
It is prepared by the epithelium of 1 film thickness 0.50mm of embodiment
Step 1: sizing material preparation
(1) first segment is kneaded: mixer set temperature is 95 DEG C, revolving speed 80rpm, according to above-mentioned gas pressure regulator, governor epithelium
Sizing compound formula is added nitrile rubber, reinforced filling and plasticizer is added together after softening, and zinc oxide, hard is sequentially added after material feeding
Tackifying resin, reinforced resin and its curing agent is added in resin acid and anti-aging agent after material feeding, continue to discharge after being kneaded 5min, control row
152-158 DEG C of glue temperature, obtains masterbatch；
(2) second segment is kneaded: using mixer, set temperature is 80 DEG C, revolving speed 35rpm, masterbatch is added, after softening
Vulcanizing agent and promotor is added, continues to be kneaded 5min, dumping, bottom sheet, 95-100 DEG C of dump temperature；
Step 2: enhancement layer double sided stick adhesive
Enhancement layer is the polyester plain weave fabric of thickness 0.1mm；Control is stretched using biaxial stress in length and breadth when enhancement layer work feed；
It is surface-treated before enhancement layer rubberizing using " heat treatment process after first RFL impregnation ", RFL impregnates formula of liquid are as follows:
The molar ratio of resorcinol and formaldehyde is 1:2；Nitrile rubber content of latex is 18%, pH value 9；It is 5% that glue amount is covered in control；
Using four-roll calender double sided stick adhesive technique, calender roller temperature set temperature is 90 DEG C, and (actual temperature should be lower than 110
DEG C), the temperature of the second roller and third roller is 3 DEG C higher than the first roller and four-roller；Sizing material is respectively placed in the first roller and four-roller, temperature
At 100 ± 5 DEG C, sizing material is respectively formed by the first roller and the second roller gap and the 4th and when third roller gap for degree control
Lower glue film sticking adhesive layer, upper and lower sticking adhesive layer and enhancement layer complete rubberizing when passing through second, third roller gap and form pressure regulator epithelium
The roller gap of base, the second roller and third roller is controlled in 0.45-0.47mm；Roller speed ratio between roller are as follows: the first roller/the second roller
=1/1.1~1/1.2；Second roller/third roller=1.03/1~1.05/1；Third roller/four-roller=1.15/1~1.2/1；
Step 3: diaphragm sulfuration process
Vulcameter vulcanization is put into after epithelium base is cut, curing temperature is 155 DEG C, vulcanization time 5-8min, is made and adjusts
Depressor epithelium.
It is prepared by the epithelium of 2 film thickness 0.37mm of embodiment
Preparation process difference from Example 1 is that the roller gap of the second roller and third roller is controlled in 0.33-
0.35mm。
It is prepared by the epithelium of 3 film thickness 0.33mm of embodiment
Preparation process difference from Example 1 is that the roller gap of the second roller and third roller is controlled in 0.25-
0.31mm。
It is prepared by the epithelium of 4 film thickness 0.3mm of embodiment
Preparation process difference from Example 1 is that the roller gap of the second roller and third roller is controlled in 0.26-
0.28mm。
In order to prove the superiority of sizing material of the invention, using conventional formulation shown in table 2 and technique, epithelium system is carried out
It is standby.
1 gas pressure regulator, governor epithelium sizing compound formula of table
2 comparative experiments gas pressure regulator, governor epithelium sizing compound formula of table
Performance detection:
The national standard of gas pressure regulator, governor epithelium performance indicator is as shown in table 3.In table 1 each embodiment with it is each in table 2
The performance of a comparative example is as shown in table 4.
3 GB27790-2011 rubber material physical mechanical property of table
The performance of 4 gas pressure regulator, governor epithelium of table
The present invention prepares epithelium in the range of thickness 0.3-0.5mm, and performance reaches and better than national standard.And compare
National standard is not achieved in example product.If similar product performance will reach national standard in the market, thickness is typically larger than 1.5mm,
If thickness reaches thickness of the present invention, performance is difficult to reach national standard.
Embodiment described above is only that preferred embodiments of the present invention will be described, not to the scope of the present invention
It is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical solution of the present invention
The various changes and improvements made should all be fallen into the protection scope that claims of the present invention determines.
Claims (10)
1. a kind of gas pressure regulator, governor epithelium sizing material, which is characterized in that by weight, composed of the following components:
Nitrile rubber: 100 parts；Plasticizer: 10-30 parts；Tackifying resin: 10-30 parts；Reinforced resin: 5-20 parts；Reinforced filling: 10-
30 parts；Stearic acid: 0.5-2 parts；Zinc oxide: 4-6 parts；Antioxidant 4010NA: 1.5-3 parts；Vulcanizing agent: 1.5-5 parts；Promotor:
1.0-3.0 part；0.1-2 parts of the curing agent of reinforced resin；
The nitrile rubber is made of the glue of three kinds of mooney viscosities, is respectively as follows: 30,60 and 80, weight percent is followed successively by 10-
30%, 40-65% and 10-40%；
The plasticizer is dioctyl phthalate；
The tackifying resin is that alkyl phenolic resin and pine tar form, and the weight percent of alkyl phenolic resin is 25-80%；
The reinforced resin is epoxy-modified alkylphenol formaldehyde resin, tall oil modified tert butyl phenolic resin, cashew nut shell
It is one or more of in the modified tert butyl phenolic resin of oil；
The reinforced filling is one or more of nano kaoline, nano montmorillonite, nano talc；
The vulcanizing agent of stating is insoluble sulfur；
The curing agent of the reinforced resin is hexamethylenetetramine；
The promotor is one or more of sulfenamide, thiazoles, thiurams.
2. gas pressure regulator, governor epithelium sizing material according to claim 1, which is characterized in that 100 parts of nitrile rubber；Plasticizer: 12-
25 parts；Tackifying resin: 15-25 parts；Reinforced resin: 10-15 parts；Reinforced filling: 15-25 parts；Stearic acid: 1.0-2.0 parts；Oxidation
Zinc: 4-6 parts；Antioxidant 4010NA: 2-2.5 parts；Vulcanizing agent: 2.0-3.0 parts；Promotor: 1.0-2.5 parts；Reinforced resin is consolidated
0.2-1.0 parts of agent.
3. gas pressure regulator, governor epithelium sizing material according to claim 1, which is characterized in that 100 parts of nitrile rubber；Plasticizer: 18-
25 parts；Tackifying resin: 20-25 parts；Reinforced resin: 12-15 parts；Reinforced filling: 15-25 parts；Stearic acid: 1.0-2.0 parts；Oxidation
Zinc: 4-6 parts；Antioxidant 4010NA: 2-2.5 parts；Vulcanizing agent: 2.0-3.0 parts；Promotor: 1.0-2.5 parts；Reinforced resin is consolidated
0.2-1.0 parts of agent.
4. described in any item gas pressure regulator, governor epithelium sizing materials according to claim 1~3, which is characterized in that the Mooney viscosity
The weight percent of the nitrile rubber of respectively 30,60 and 80 is followed successively by 10-20%, 45-60% and 20-40%；
The weight percent of alkyl phenolic resin is 25-80% in the tackifying resin；
The reinforced resin is that epoxy-modified alkylphenol formaldehyde resin is used in combination with tall oil modified tert butyl phenolic resin, ring
The weight percent of the modified alkylphenol formaldehyde resin of oxygen is 50-80%；
The reinforced filling is that nano kaoline is used in combination with nano montmorillonite, and wherein the weight percent of nano kaoline is 60-
80%；
The promotor is that NOBS and TMTD is used in combination, and wherein the weight percent of NOBS is 70-90%.
5. gas pressure regulator, governor epithelium sizing material according to claim 4, which is characterized in that the Mooney viscosity is respectively 30,
The weight percent of 60 and 80 nitrile rubber is followed successively by 10-15%, 50-60% and 25-35%.
6. gas pressure regulator, governor epithelium sizing material according to claim 4, which is characterized in that alkyl phenolic in the tackifying resin
The weight percent of resin is 60-70%.
7. gas pressure regulator, governor epithelium sizing material according to claim 4, which is characterized in that epoxy-modified in the reinforced resin
Alkylphenol formaldehyde resin weight percent be 55-75%.
8. gas pressure regulator, governor epithelium sizing material according to claim 4, which is characterized in that nanometer kaolinite in the reinforced filling
The weight percent of soil is 65-75%.
9. gas pressure regulator, governor epithelium sizing material according to claim 1, which is characterized in that the reinforced filling is by organic
Ammonium salt surface treatment；Average grain diameter is 10-100nm.
10. a kind of preparation process of gas pressure regulator, governor epithelium, which comprises the steps of:
Step 1: sizing material preparation
(1) first segment is kneaded: mixer set temperature is 80-100 DEG C, revolving speed 75-85rpm, described in accordance with the claim 1
Gas pressure regulator, governor epithelium sizing compound formula is added nitrile rubber, reinforced filling and plasticizer is added together after softening, after material feeding successively
Zinc oxide, stearic acid and anti-aging agent is added, tackifying resin, reinforced resin and its curing agent are added after material feeding, continues to be kneaded 5-
It discharges after 7min, control dump temperature is 155 ± 3 DEG C, obtains masterbatch；
(2) second segment is kneaded: using mixer, set temperature is 70-85 DEG C, revolving speed 30-35rpm, and masterbatch, softening is added
Vulcanizing agent and promotor are added afterwards, continues to be kneaded 4-8min, dumping, bottom sheet, dump temperature is no more than 100 DEG C；
Step 2: enhancement layer double sided stick adhesive
Enhancement layer is the polyester plain weave fabric of 0.11 ± 0.01mm of thickness；Control is stretched using biaxial stress in length and breadth when enhancement layer work feed
System；
It is surface-treated before enhancement layer rubberizing using " heat treatment process after first RFL impregnation ", RFL impregnates formula of liquid are as follows: isophthalic
The molar ratio of diphenol and formaldehyde is 1:2；Nitrile rubber content of latex is 15%-20%, pH value 8-10；It is 5%- that glue amount is covered in control
6%；
Using four-roll calender double sided stick adhesive technique, calender roller temperature set temperature is 75-90 DEG C, the temperature of the second roller and third roller
It spends 2-5 DEG C higher than the first roller and four-roller；Sizing material is respectively placed in the first roller and four-roller, and temperature control is at 100 ± 5 DEG C, glue
It is respectively formed glue film sticking adhesive layer up and down when expecting through the first roller and the second roller gap and the 4th with third roller gap, is pasted up and down
Glue-line and enhancement layer complete rubberizing when passing through second, third roller gap and form pressure regulator epithelium base, the second roller and third roller
Roller gap is controlled in 0.25-0.47mm；；Roller speed ratio between roller are as follows: the first roller/the second roller=1/1.1~1/1.2；The
Two rollers/third roller=1.03/1~1.05/1；Third roller/four-roller=1.15/1~1.2/1；
Step 3: diaphragm sulfuration process
Vulcameter vulcanization is put into after epithelium base is cut, curing temperature is 155 DEG C, vulcanization time 5-15min, and pressure regulator is made
Epithelium.
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| CN111516172A (en) * | 2020-04-22 | 2020-08-11 | 上海昊米新材料科技股份有限公司 | Rubber mixing and rubber mixing process |
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Effective date of registration: 20210916 Address after: 321000 No. 6, Dayan Road, Lanjiang street, Lanxi City, Jinhua City, Zhejiang Province Patentee after: ZHEJIANG JINLIDA NEW MATERIALS TECHNOLOGY Co.,Ltd. Address before: No. 53, Zhengzhou Road, North District, Qingdao, Shandong Patentee before: QINGDAO University OF SCIENCE AND TECHNOLOGY |