CN107652683A - A kind of non-asbestos seal gasket - Google Patents
A kind of non-asbestos seal gasket Download PDFInfo
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- CN107652683A CN107652683A CN201710916233.XA CN201710916233A CN107652683A CN 107652683 A CN107652683 A CN 107652683A CN 201710916233 A CN201710916233 A CN 201710916233A CN 107652683 A CN107652683 A CN 107652683A
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone rubber
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- B32—LAYERED PRODUCTS
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
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- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/108—Special methods for making a non-metallic packing
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Abstract
The invention provides a kind of non-asbestos seal gasket, first use the mould of special shape, corrugated sandwich layer is made with rubber latex, non-asbestos fiber, filler etc., again based on expanded vermiculite and flyash, superficial layer is made, is compounded in the upper and lower surface of sandwich layer, overall corrugated gasket seal can be obtained, it is favourable to sealing, it can further improve sealing property.
Description
Technical field
The present invention relates to gasket seal technical field, more particularly to a kind of non-asbestos seal gasket.
Background technology
Gasket seal is generally used for machinery, equipment or pipeline, belongs to every place for being related to fluid can all use one
Kind sealing spare part.Gasket seal can be divided into metallic packing and nonmetallic gasket seal according to material, and the former includes copper packing
Piece, stainless steel gasket, iron gasket and aluminium backing etc., the latter include asbestos washer, non-asbestos pad, paper gasket and rubber sheet gasket
Deng.
Wherein, asbestos washer is to be aided with rubber chemicals and inserts again as primary raw material using asbestos fibre and rubber, warp
The processes such as mixing, hot-rolling shaping and vulcanization are crossed to be made.Asbestos washer has superior sealing property and corrosion resistance etc., and
And it is inexpensive, but have been recognized that asbestos are a kind of carcinogens in the world, non-asbestos is the research tendency of current environmental protection development.
But non-asbestos pad tends not to the sealing property for reaching asbestos seal gasket, be still greatly improved space.
The content of the invention
Present invention aim to provide a kind of non-asbestos seal gasket, it has the corrugated part favourable to sealing
Point, and further improve sealing property.
To achieve the above object, the present invention is achieved by the following scheme：
A kind of preparation method of non-asbestos seal gasket, is comprised the following steps that：
(1) rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and lubricant are taken,
It is placed in mixer after stirring and discharges, be transferred in vulcanizer and vulcanize, compression molding, obtains corrugated sandwich layer；Wherein, mould
Mould is annular used by molded, and its vertical section is the corrugated along annulus radial expansion；
(2) expanded vermiculite, flyash and deionized water are well mixed, obtain suspension, ultrasonication 1~2 hour,
Dispersant is added, high speed shear is scattered 1~2 hour, and superficial layer is made using the tape casting；
(3) superficial layer obtained by step (2) is combined to the upper surface of sandwich layer obtained by step (1) respectively by the way of co-extrusion
And lower surface, produce undulatory gasket seal, the sealed object of the highs and lows of ripple respectively with upper and lower both sides connects
Touch.
Preferably, the thickness ratio of superficial layer and sandwich layer is 1: 1.2~1.3.
Preferably, it is rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, anti-old in step (1)
The mass ratio of agent and lubricant is 1: 0.08~0.1: 0.08~0.1: 0.02~0.03: 1.3~2: 2~3: 0.08~0.1:
0.08~0.1.
Preferably, the rubber latex in step (1) is fluorubber emulsion, silicon rubber emulsion, neoprene latex and water-based
Mixed emulsion made of polyaminoester emulsion, their mass ratio are 1: 2~3: 1~2: 0.5~0.8.
Preferably, the crosslinking agent in step (1) is blocked isocyanate.
Preferably, the non-asbestos fiber in step (1) be nylon fiber, ceramic fibre, polysulphonamide fiber, glass fibre and
Composite fibre made of fibrous sepiolite, their mass ratio are 1: 0.2~0.3: 0.8~1: 0.2~0.3: 0.2~0.3.
Preferably, the vulcanizing agent in step (1) is cumyl peroxide.
Preferably, the auxiliary curing agent in step (1) is triallylcyanurate.
Preferably, the filler in step (1) includes four acicular type zinc oxide crystal whisker, silicon carbide whisker and expanded graphite, three
Weight ratio be 2~3: 0.5~0.8: 10.
Preferably, the age resistor in step (1) is N- phenyl-2-naphthylamines.
Preferably, the lubricant in step (1) is Tissuemat E.
Preferably, the vulcanization parameters in step (1) are：Curing temperature be 130~140 DEG C, sulfide stress be 5~
6MPa, cure time are 10~20 minutes.
Preferably, in step (1), be additionally added accelerator before vulcanization, the dosage of accelerator for rubber latex weight 7~
8%.
It is further preferred that the accelerator is two thio hexichol thiazoles.
Preferably, the mass volume ratio of expanded vermiculite in step (2), flyash, deionized water and dispersant is 2~3g: 5
~8g: 100mL: 10~13g.
Preferably, the expanded vermiculite in step (2) is through 800~900 DEG C of high-temperature roastings 5~6 by the vermiculite of 20~40 mesh
Hour and obtain.
Preferably, the dispersant in step (2) is selected from sodium tripolyphosphate, calgon, Sodium Polyacrylate, anion table
Any of face activating agent 5050 or non-ionic dispersing agent 3275.
A kind of non-asbestos seal gasket, obtained by above-mentioned preparation method.
The beneficial effects of the invention are as follows：
1st, the present invention first uses the mould of special shape, and corrugated core is made with rubber latex, non-asbestos fiber, filler etc.
Layer, then based on expanded vermiculite and flyash, superficial layer is made, the upper and lower surface of sandwich layer is compounded in, entirety can be obtained
Corrugated gasket seal, it is favourable to sealing, it can further improve sealing property.
2nd, the present invention is formed using fluorubber emulsion, silicon rubber emulsion, neoprene latex and aqueous polyurethane emulsion
Rubber latex combines, the non-asbestos that nylon fiber, ceramic fibre, polysulphonamide fiber, glass fibre and fibrous sepiolite are formed
Fiber combinations, each composition coordinated so that gasket seal has preferable mechanical property.
3rd, for superficial layer of the invention using the combination of expanded vermiculite and flyash, it has certain bullet with sealed object contact point
Property, effectively improve sealing.
Brief description of the drawings
Fig. 1 is any vertical section structure schematic diagram of gasket seal of the present invention；
Wherein, 1 is sandwich layer, and 2 be superficial layer, and 3 be sealed object.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below in conjunction with accompanying drawing, it is clear that retouched
The embodiment stated is only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.
Fluorubber emulsion of the present invention, purchased from Yuyao City Hui Hong plastic molding and processing plants；Silicon rubber emulsion, purchased from the micro- spectrumization in Guangzhou
Work point analyses Technology Co., Ltd.；Neoprene latex, purchased from Shanghai Sheng Yi plastic cement Science and Technology Ltd.；Aqueous polyurethane emulsion,
Purchased from Anhui Anda-Huatai New Material Co., Ltd..
Embodiment 1
As shown in figure 1, a kind of preparation method of non-asbestos seal gasket, is comprised the following steps that：
(1) rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and lubricant are taken,
It is placed in mixer after stirring and discharges, be transferred in vulcanizer and vulcanize, compression molding, obtains corrugated sandwich layer 1；Wherein,
Mould is annular used by compression molding, and its vertical section is the corrugated along annulus radial expansion；
(2) expanded vermiculite, flyash and deionized water are well mixed, obtain suspension, ultrasonication 1 hour, add
Enter dispersant, high speed shear is scattered 1 hour, and superficial layer 2 is made using the tape casting；
(3) superficial layer 2 obtained by step (2) is combined to the upper table of sandwich layer obtained by step (1) respectively by the way of co-extrusion
Face and lower surface, produce undulatory gasket seal, the highs and lows of the ripple sealed object 3 with upper and lower both sides respectively
Contact.
Wherein, the thickness ratio of superficial layer 2 and sandwich layer 1 is 1: 1.2.
In step (1), rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and profit
The mass ratio of lubrication prescription is 1: 0.08: 0.08: 0.02: 1.3: 2: 0.08: 0.08.
Rubber latex in step (1) is fluorubber emulsion, silicon rubber emulsion, neoprene latex and aqueous polyurethane are newborn
Mixed emulsion made of liquid, their mass ratio are 1: 2: 1: 0.5.
Crosslinking agent in step (1) is blocked isocyanate.
Non-asbestos fiber in step (1) is nylon fiber, ceramic fibre, polysulphonamide fiber, glass fibre and threadiness
Composite fibre made of sepiolite, their mass ratio are 1: 0.2: 0.8: 0.2: 0.2.
Vulcanizing agent in step (1) is cumyl peroxide, and auxiliary curing agent is triallylcyanurate.
Filler in step (1) includes four acicular type zinc oxide crystal whisker, silicon carbide whisker and expanded graphite, the weight ratio of three
For 2: 0.5: 10.
Age resistor in step (1) is N- phenyl-2-naphthylamines.
Lubricant in step (1) is Tissuemat E.
Vulcanization parameters in step (1) are：Curing temperature is 130 DEG C, sulfide stress 5MPa, cure time 10
Minute.
In step (1), accelerator is additionally added before vulcanization, the dosage of accelerator is the 7% of rubber latex weight.Accelerator is
Two thio hexichol thiazoles.
Expanded vermiculite in step (2), flyash, the mass volume ratio of deionized water and dispersant are 2g: 5g: 100mL:
10g。
Expanded vermiculite in step (2) is to obtain the vermiculite of 20 mesh through 800 DEG C of high-temperature roastings 5 hours.
Dispersant in step (2) is selected from sodium tripolyphosphate, calgon, Sodium Polyacrylate, anion surface active
Any of agent 5050 or non-ionic dispersing agent 3275.
A kind of non-asbestos seal gasket, obtained by above-mentioned preparation method.
Embodiment 2
As shown in figure 1, a kind of preparation method of non-asbestos seal gasket, is comprised the following steps that：
(1) rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and lubricant are taken,
It is placed in mixer after stirring and discharges, be transferred in vulcanizer and vulcanize, compression molding, obtains corrugated sandwich layer 1；Wherein,
Mould is annular used by compression molding, and its vertical section is the corrugated along annulus radial expansion；
(2) expanded vermiculite, flyash and deionized water are well mixed, obtain suspension, ultrasonication 2 hours, add
Enter dispersant, high speed shear is scattered 2 hours, and superficial layer 2 is made using the tape casting；
(3) superficial layer 2 obtained by step (2) is combined to the upper table of sandwich layer obtained by step (1) respectively by the way of co-extrusion
Face and lower surface, produce undulatory gasket seal, the highs and lows of the ripple sealed object 3 with upper and lower both sides respectively
Contact.
Wherein, the thickness ratio of superficial layer 2 and sandwich layer 1 is 1: 1.3.
In step (1), rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and profit
The mass ratio of lubrication prescription is 1: 0.1: 0.1: 0.03: 2: 3: 0.1: 0.1.
Rubber latex in step (1) is fluorubber emulsion, silicon rubber emulsion, neoprene latex and aqueous polyurethane are newborn
Mixed emulsion made of liquid, their mass ratio are 1: 3: 2: 0.8.
Crosslinking agent in step (1) is blocked isocyanate.
Non-asbestos fiber in step (1) is nylon fiber, ceramic fibre, polysulphonamide fiber, glass fibre and threadiness
Composite fibre made of sepiolite, their mass ratio are 1: 0.3: 1: 0.3: 0.3.
Vulcanizing agent in step (1) is cumyl peroxide, and auxiliary curing agent is triallylcyanurate.
Filler in step (1) includes four acicular type zinc oxide crystal whisker, silicon carbide whisker and expanded graphite, the weight ratio of three
For 3: 0.8: 10.
Age resistor in step (1) is N- phenyl-2-naphthylamines.
Lubricant in step (1) is Tissuemat E.
Vulcanization parameters in step (1) are：Curing temperature is 140 DEG C, sulfide stress 6MPa, cure time 20
Minute.
In step (1), accelerator is additionally added before vulcanization, the dosage of accelerator is the 8% of rubber latex weight.Accelerator is
Two thio hexichol thiazoles.
Expanded vermiculite in step (2), flyash, the mass volume ratio of deionized water and dispersant are 3g: 8g: 100mL:
13g。
Expanded vermiculite in step (2) is to obtain the vermiculite of 40 mesh through 900 DEG C of high-temperature roastings 6 hours.
Dispersant in step (2) is selected from sodium tripolyphosphate, calgon, Sodium Polyacrylate, anion surface active
Any of agent 5050 or non-ionic dispersing agent 3275.
A kind of non-asbestos seal gasket, obtained by above-mentioned preparation method.
Embodiment 3
As shown in figure 1, a kind of preparation method of non-asbestos seal gasket, is comprised the following steps that：
(1) rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and lubricant are taken,
It is placed in mixer after stirring and discharges, be transferred in vulcanizer and vulcanize, compression molding, obtains corrugated sandwich layer 1；Wherein,
Mould is annular used by compression molding, and its vertical section is the corrugated along annulus radial expansion；
(2) expanded vermiculite, flyash and deionized water are well mixed, obtain suspension, ultrasonication 1.5 hours,
Dispersant is added, high speed shear is scattered 1.5 hours, and superficial layer 2 is made using the tape casting；
(3) superficial layer 2 obtained by step (2) is combined to the upper table of sandwich layer obtained by step (1) respectively by the way of co-extrusion
Face and lower surface, produce undulatory gasket seal, the highs and lows of the ripple sealed object 3 with upper and lower both sides respectively
Contact.
Wherein, the thickness ratio of superficial layer 2 and sandwich layer 1 is 1: 1.2.
In step (1), rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and profit
The mass ratio of lubrication prescription is 1: 0.09: 0.09: 0.03: 1.6: 2.5: 0.09: 0.09.
Rubber latex in step (1) is fluorubber emulsion, silicon rubber emulsion, neoprene latex and aqueous polyurethane are newborn
Mixed emulsion made of liquid, their mass ratio are 1: 2.5: 1.5: 0.6.
Crosslinking agent in step (1) is blocked isocyanate.
Non-asbestos fiber in step (1) is nylon fiber, ceramic fibre, polysulphonamide fiber, glass fibre and threadiness
Composite fibre made of sepiolite, their mass ratio are 1: 0.2: 0.9: 0.3: 0.2.
Vulcanizing agent in step (1) is cumyl peroxide, and auxiliary curing agent is triallylcyanurate.
Filler in step (1) includes four acicular type zinc oxide crystal whisker, silicon carbide whisker and expanded graphite, the weight ratio of three
For 2.5: 0.6: 10.
Age resistor in step (1) is N- phenyl-2-naphthylamines.
Lubricant in step (1) is Tissuemat E.
Vulcanization parameters in step (1) are：Curing temperature is 135 DEG C, sulfide stress 6MPa, cure time 15
Minute.
In step (1), accelerator is additionally added before vulcanization, the dosage of accelerator is the 7.5% of rubber latex weight.Accelerator
For two thio hexichol thiazoles.
Expanded vermiculite in step (2), flyash, the mass volume ratio of deionized water and dispersant are 2.5g: 7g: 100mL:
12g。
Expanded vermiculite in step (2) is to obtain the vermiculite of 30 mesh through 850 DEG C of high-temperature roastings 5.5 hours.
Dispersant in step (2) is selected from sodium tripolyphosphate, calgon, Sodium Polyacrylate, anion surface active
Any of agent 5050 or non-ionic dispersing agent 3275.
A kind of non-asbestos seal gasket, obtained by above-mentioned preparation method.
Comparative example 1
As shown in figure 1, a kind of preparation method of non-asbestos seal gasket, is comprised the following steps that：
(1) rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and lubricant are taken,
It is placed in mixer after stirring and discharges, be transferred in vulcanizer and vulcanize, compression molding, obtains corrugated sandwich layer 1；Wherein,
Mould is annular used by compression molding, and its vertical section is the corrugated along annulus radial expansion；
(2) expanded vermiculite and deionized water are well mixed, obtain suspension, ultrasonication 1.5 hours, add scattered
Agent, high speed shear is scattered 1.5 hours, and superficial layer 2 is made using the tape casting；
(3) superficial layer 2 obtained by step (2) is combined to the upper table of sandwich layer obtained by step (1) respectively by the way of co-extrusion
Face and lower surface, produce undulatory gasket seal, the highs and lows of the ripple sealed object 3 with upper and lower both sides respectively
Contact.
Wherein, the thickness ratio of superficial layer 2 and sandwich layer 1 is 1: 1.2.
In step (1), rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and profit
The mass ratio of lubrication prescription is 1: 0.09: 0.09: 0.03: 1.6: 2.5: 0.09: 0.09.
Rubber latex in step (1) is fluorubber emulsion, silicon rubber emulsion, neoprene latex and aqueous polyurethane are newborn
Mixed emulsion made of liquid, their mass ratio are 1: 2.5: 1.5: 0.6.
Crosslinking agent in step (1) is blocked isocyanate.
Non-asbestos fiber in step (1) is nylon fiber, ceramic fibre, polysulphonamide fiber, glass fibre and threadiness
Composite fibre made of sepiolite, their mass ratio are 1: 0.2: 0.9: 0.3: 0.2.
Vulcanizing agent in step (1) is cumyl peroxide, and auxiliary curing agent is triallylcyanurate.
Filler in step (1) includes four acicular type zinc oxide crystal whisker, silicon carbide whisker and expanded graphite, the weight ratio of three
For 2.5: 0.6: 10.
Age resistor in step (1) is N- phenyl-2-naphthylamines.
Lubricant in step (1) is Tissuemat E.
Vulcanization parameters in step (1) are：Curing temperature is 135 DEG C, sulfide stress 6MPa, cure time 15
Minute.
In step (1), accelerator is additionally added before vulcanization, the dosage of accelerator is the 7.5% of rubber latex weight.Accelerator
For two thio hexichol thiazoles.
The mass volume ratio of expanded vermiculite, deionized water and dispersant is 2.5g: 100mL: 12g in step (2).
Expanded vermiculite in step (2) is to obtain the vermiculite of 30 mesh through 850 DEG C of high-temperature roastings 5.5 hours.
Dispersant in step (2) is selected from sodium tripolyphosphate, calgon, Sodium Polyacrylate, anion surface active
Any of agent 5050 or non-ionic dispersing agent 3275.
A kind of non-asbestos seal gasket, obtained by above-mentioned preparation method.
Comparative example 2
A kind of preparation method of non-asbestos seal gasket, is comprised the following steps that：Take rubber latex, crosslinking agent, vulcanizing agent, help
Vulcanizing agent, non-asbestos fiber, filler, age resistor and lubricant, it is placed in mixer after stirring and discharges, be transferred to vulcanizer
Middle vulcanization, compression molding, obtain corrugated gasket seal；Wherein, mould is annular used by compression molding, and its vertical profile
Face is the corrugated along annulus radial expansion, and the sealed object of the highs and lows of ripple respectively with upper and lower both sides contacts.
Wherein, the thickness ratio of superficial layer and sandwich layer is 1: 1.2.
Rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, the quality of age resistor and lubricant
Than for 1: 0.09: 0.09: 0.03: 1.6: 2.5: 0.09: 0.09.
Rubber latex is to be mixed made of fluorubber emulsion, silicon rubber emulsion, neoprene latex and aqueous polyurethane emulsion
Emulsion is closed, their mass ratio is 1: 2.5: 1.5: 0.6.
Crosslinking agent is blocked isocyanate.
Non-asbestos fiber is made of nylon fiber, ceramic fibre, polysulphonamide fiber, glass fibre and fibrous sepiolite
Composite fibre, their mass ratio are 1: 0.2: 0.9: 0.3: 0.2.
Vulcanizing agent is cumyl peroxide, and auxiliary curing agent is triallylcyanurate.
Filler includes four acicular type zinc oxide crystal whisker, silicon carbide whisker and expanded graphite, and the weight ratio of three is 2.5: 0.6:
10。
Age resistor is N- phenyl-2-naphthylamines.
Lubricant is Tissuemat E.
Vulcanization parameters are：Curing temperature is 135 DEG C, sulfide stress 6MPa, and cure time is 15 minutes.
Accelerator is additionally added before vulcanization, the dosage of accelerator is the 7.5% of rubber latex weight.Accelerator is two thio two
Benzene thiazole.
A kind of non-asbestos seal gasket, obtained by above-mentioned preparation method.
Test example
The gasket seal of embodiment 1~3 and comparative example 1~2, mechanical property are relatively shown in Table 1.
The mechanical property of table 1. compares
As shown in Table 1, the gasket seal of embodiment 1~3 have higher cross direction tensile strength and rebound degree (explanation have compared with
Good sealing), compression ratio is moderate, and (too small, the initial installation pretightening force needed during use is larger；It is excessive, normal mounting pretension
Gasket construction destruction is easily caused under power), creep relaxation rate is low, mechanical property more preferably, far superior to comparative example 1 and comparative example 2.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (10)
1. a kind of preparation method of non-asbestos seal gasket, it is characterised in that comprise the following steps that：
(1) rubber latex, crosslinking agent, vulcanizing agent, auxiliary curing agent, non-asbestos fiber, filler, age resistor and lubricant are taken, is placed in
Discharged after being stirred in mixer, be transferred in vulcanizer and vulcanize, compression molding, obtain corrugated sandwich layer；Wherein, it is molded into
Mould is annular used by type, and its vertical section is the corrugated along annulus radial expansion；
(2) expanded vermiculite, flyash and deionized water are well mixed, obtain suspension, ultrasonication 1~2 hour, add
Dispersant, high speed shear is scattered 1~2 hour, and superficial layer is made using the tape casting；
(3) superficial layer obtained by step (2) is combined to the upper surface of sandwich layer obtained by step (1) with respectively by the way of co-extrusion
Surface, produces undulatory gasket seal, and the sealed object of the highs and lows of ripple respectively with upper and lower both sides contacts.
2. preparation method according to claim 1, it is characterised in that the thickness ratio of superficial layer and sandwich layer be 1: 1.2~
1.3。
3. preparation method according to claim 1, it is characterised in that in step (1), rubber latex, crosslinking agent, vulcanization
Agent, auxiliary curing agent, non-asbestos fiber, filler, the mass ratio of age resistor and lubricant are 1: 0.08~0.1: 0.08~0.1:
0.02~0.03: 1.3~2: 2~3: 0.08~0.1: 0.08~0.1.
4. preparation method according to claim 1, it is characterised in that rubber latex in step (1) is fluorubber emulsion,
Silicon rubber emulsion, neoprene latex and mixed emulsion made of aqueous polyurethane emulsion, their mass ratio are 1: 2~3: 1
~2: 0.5~0.8.
5. preparation method according to claim 1, it is characterised in that non-asbestos fiber in step (1) is nylon fiber,
Ceramic fibre, polysulphonamide fiber, glass fibre and composite fibre made of fibrous sepiolite, their mass ratio are 1: 0.2
~0.3: 0.8~1: 0.2~0.3: 0.2~0.3.
6. preparation method according to claim 1, it is characterised in that the filler in step (1) includes four-needle-like zinc oxide
Whisker, silicon carbide whisker and expanded graphite, the weight ratio of three is 2~3: 0.5~0.8: 10.
7. preparation method according to claim 1, it is characterised in that the vulcanization parameters in step (1) are：Vulcanization temperature
Spend for 130~140 DEG C, sulfide stress is 5~6MPa, and cure time is 10~20 minutes.
8. preparation method according to claim 1, it is characterised in that in step (1), accelerator is additionally added before vulcanization, is promoted
The dosage for entering agent is the 7~8% of rubber latex weight.
9. preparation method according to claim 1, it is characterised in that expanded vermiculite, flyash, deionization in step (2)
The mass volume ratio of water and dispersant is 2~3g: 5~8g: 100mL: 10~13g.
10. a kind of non-asbestos seal gasket, obtained by preparation method according to any one of claims 1 to 9.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948543A (en) * | 2018-07-30 | 2018-12-07 | 合肥利裕泰玻璃制品有限公司 | A kind of anti-aging sealing joint strip of glass door and window anticracking |
| CN109575403A (en) * | 2018-12-06 | 2019-04-05 | 铜陵新创流体科技有限公司 | A kind of industrial oil impact resistance valve door sealing coil preparation method |
| CN110723923A (en) * | 2019-10-18 | 2020-01-24 | 武汉理工大学 | Preparation method of vermiculite-based flexible sealing material |
| CN115650632A (en) * | 2022-10-26 | 2023-01-31 | 河北慈宏新材料科技有限公司 | High-temperature-resistant vermiculite-based composite sealing gasket and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030032707A1 (en) * | 2000-11-14 | 2003-02-13 | Boral Material Technologies Inc. | Filler comprising fly ash for use in polymer composites |
| CN1423074A (en) * | 2002-12-30 | 2003-06-11 | 成都市天府垫片有限责任公司 | Asbestos-free oil-proof sealing board |
| US20070051278A1 (en) * | 2005-09-02 | 2007-03-08 | The University Of Chicago | Light weight phosphate cements |
| CN101122338A (en) * | 2006-08-11 | 2008-02-13 | 日本皮拉工业株式会社 | Non-asbestos seal gasket |
| US20100016183A1 (en) * | 2007-05-10 | 2010-01-21 | Halliburton Energy Services, Inc. | Sealant Compositions and Methods Utilizing Nano-Particles |
| CN202381680U (en) * | 2011-12-05 | 2012-08-15 | 浙江国泰密封材料股份有限公司 | Low-creep metal-enhanced rubber gasket |
| CN105051959A (en) * | 2013-01-21 | 2015-11-11 | 福莱西投资公司 | Gasket for fuel cells |
| CN206458825U (en) * | 2017-02-20 | 2017-09-01 | 大庆开发区庆慈密封件有限公司 | Tetrafluoro carbonization compound seal packing |
-
2017
- 2017-09-22 CN CN201710916233.XA patent/CN107652683B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030032707A1 (en) * | 2000-11-14 | 2003-02-13 | Boral Material Technologies Inc. | Filler comprising fly ash for use in polymer composites |
| CN1423074A (en) * | 2002-12-30 | 2003-06-11 | 成都市天府垫片有限责任公司 | Asbestos-free oil-proof sealing board |
| US20070051278A1 (en) * | 2005-09-02 | 2007-03-08 | The University Of Chicago | Light weight phosphate cements |
| CN101122338A (en) * | 2006-08-11 | 2008-02-13 | 日本皮拉工业株式会社 | Non-asbestos seal gasket |
| US20100016183A1 (en) * | 2007-05-10 | 2010-01-21 | Halliburton Energy Services, Inc. | Sealant Compositions and Methods Utilizing Nano-Particles |
| CN202381680U (en) * | 2011-12-05 | 2012-08-15 | 浙江国泰密封材料股份有限公司 | Low-creep metal-enhanced rubber gasket |
| CN105051959A (en) * | 2013-01-21 | 2015-11-11 | 福莱西投资公司 | Gasket for fuel cells |
| CN206458825U (en) * | 2017-02-20 | 2017-09-01 | 大庆开发区庆慈密封件有限公司 | Tetrafluoro carbonization compound seal packing |
Non-Patent Citations (1)
| Title |
|---|
| 胡宏玖，等: ""封闭型异氰酸酯交联非石棉纤维增强乳胶密封垫片材料的制备"", 《润滑与密封》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948543A (en) * | 2018-07-30 | 2018-12-07 | 合肥利裕泰玻璃制品有限公司 | A kind of anti-aging sealing joint strip of glass door and window anticracking |
| CN109575403A (en) * | 2018-12-06 | 2019-04-05 | 铜陵新创流体科技有限公司 | A kind of industrial oil impact resistance valve door sealing coil preparation method |
| CN110723923A (en) * | 2019-10-18 | 2020-01-24 | 武汉理工大学 | Preparation method of vermiculite-based flexible sealing material |
| CN110723923B (en) * | 2019-10-18 | 2022-04-26 | 武汉理工大学 | Preparation method of vermiculite-based flexible sealing material |
| CN115650632A (en) * | 2022-10-26 | 2023-01-31 | 河北慈宏新材料科技有限公司 | High-temperature-resistant vermiculite-based composite sealing gasket and preparation method thereof |
| CN115650632B (en) * | 2022-10-26 | 2023-10-31 | 河北慈宏新材料科技有限公司 | High-resistance Wen Zhidan-based composite sealing gasket and preparation method thereof |
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| CN107652683B (en) | 2020-09-25 |
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