CN108102233A - A kind of fire-retardant ageing-resistant sealing joint strip - Google Patents
A kind of fire-retardant ageing-resistant sealing joint strip Download PDFInfo
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- CN108102233A CN108102233A CN201810007657.9A CN201810007657A CN108102233A CN 108102233 A CN108102233 A CN 108102233A CN 201810007657 A CN201810007657 A CN 201810007657A CN 108102233 A CN108102233 A CN 108102233A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
- C09K2003/1034—Materials or components characterised by specific properties
- C09K2003/1078—Fire-resistant, heat-resistant materials
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of fire-retardant ageing-resistant sealing joint strips, it includes the component of following mass fraction：50~60 parts of butyl rubber, 40~50 parts of ethylene-propylene diene copolymer, 20~40 parts of white carbon, 1.5~4 parts of silane coupling agent, 10~20 parts of naphthenic oil, 0.5~1 part of sulphur, 0.5~0.8 part of accelerating agent, 3~8 parts of activating agent, 5~10 parts of lubricant, 0.5~4 part of cumyl peroxide (DCP), 1~2 part of anti-aging agent, 10~20 parts of fire retardant, 1~10 part of pigment.It is used in the present invention with good mechanical properties, high-low temperature resistant, the ethylene-propylene diene copolymer of chemical-resistant resistance and butyl rubber as raw rubber, and it is with the addition of fire retardant, anti-aging agent and pigment, thus the sealing joint strip prepared has good sealing performance, ageing-resistant performance, and guarantee is provided to the life of the comfortable safety of people.
Description
Technical field
The present invention relates to sealing material field, especially a kind of fire-retardant ageing-resistant sealing joint strip.
Background technology
In terms of sealing joint strip often applies door and window in architectural engineering, automobile door frame and some cabinet equipments.Fluid sealant
Item is door and window plays waterproof and dustproof, sound insulation, heat-insulated, buffering vibration in the effects that.According to statistics, China's building energy consumption accounts for
The 35%~40% of social total energy consumption, and for whole building, the energy lost by door and window accounts for the 50% of building energy consumption,
About the 20% of i.e. social total energy consumption both is from door and window, and the door and window heat loss of poor sealing is 5~6 times of wall heat loss, so
The key of building energy conservation is exactly that door and window is energy saving, and one of energy saving key factor of door and window is exactly sealing joint strip.By material fluid sealant
Item can be divided into rubber weather strip, plastic sealing strip and compound sealing strip.Mainly based on rubber material, there are neoprene in foreign countries respectively
Rubber, nitrile rubber, butyl rubber, silicon rubber and ethylene propylene diene rubber；Domestic then mainly ethylene propylene diene rubber and plasticising gathers
Vinyl chloride material.Ethylene propylene diene rubber has excellent low-temperature characteristics, and most of vulcanized articles are also more soft under the conditions of -50 DEG C
It is soft, and its density is small, almost than lightest one kind in all synthetic rubber.Butyl rubber is by isobutene and a small amount of
A kind of isoprene rubber made from low temperature cationic polymerization under catalyst action, its feature are that gas permeability is small, resistance to
Hot, tear-resistant and flexible resistance is excellent.The sealing joint strips such as door and window can be by the butyl rubber and ethylene-propylene diene copolymer of better performances
It prepares, although with excellent resistant of high or low temperature and mechanical performance, light, heat, the purple easily in by environment in use
The environmental factors such as outside line and influence service life.In addition, high molecular material belongs to greatly organic material, easily burning forms fire
Calamity, so, in order to prevent with the generation of reduction fire, each state is all promoting and applying fire proofing, to improve the life matter of the people
Amount and safety.
The content of the invention
The object of the present invention is to provide a kind of fire-retardant ageing-resistant sealing joint strips.
The present invention is to solve technical solution used by its technical problem：Butyl rubber and ethylene-propylene diene copolymer are used as raw rubber
And fire retardant, anti-aging agent and pigment are with the addition of, it includes the component of following mass fraction：50~60 parts of butyl rubber, ternary second
Third 40~50 parts of glue, 20~40 parts of white carbon, 1.5~4 parts of silane coupling agent, 10~20 parts of naphthenic oil, 0.5~1 part of sulphur, rush
Into 0.5~0.8 part of agent, 3~8 parts of activating agent, 5~10 parts of lubricant, 0.5~4 part of cumyl peroxide (DCP), anti-aging agent 1
~2 parts, 10~20 parts of fire retardant, 1~10 part of pigment.
The above-mentioned fire-retardant ageing-resistant sealing joint strip of one kind, the butyl rubber are conventional butyl rubbers.
The above-mentioned fire-retardant ageing-resistant sealing joint strip of one kind, the silane coupling agent are in Si-69, KH550, KH792
It is a kind of.
The above-mentioned fire-retardant ageing-resistant sealing joint strip of one kind, the white carbon is that the silane coupling agent in claim 3 leads to
Cross the white carbon that Chemical coating method was anticipated.
The above-mentioned fire-retardant ageing-resistant sealing joint strip of one kind, the accelerating agent is captax, Vulcanization accelerator TMTD, accelerating agent
D, two or more in accelerant CZ are used in combination.
The above-mentioned fire-retardant ageing-resistant sealing joint strip of one kind, the activating agent are nano zine oxide.
The above-mentioned fire-retardant ageing-resistant sealing joint strip of one kind, the lubricant are one in paraffin, zinc stearate, stearic acid
Kind or a variety of be used in combination.
The above-mentioned fire-retardant ageing-resistant sealing joint strip of one kind, the anti-aging agent are one in 4020,4010NA, antioxidant MB
Kind or a variety of be used in combination.
The above-mentioned fire-retardant ageing-resistant sealing joint strip of one kind, the fire retardant is aluminium hydroxide, saleratus, phosphate,
One or more in zinc borate, chlorinated paraffin are used in combination.
The above-mentioned fire-retardant ageing-resistant sealing joint strip of one kind, the pigment is iron oxide red, iron oxide yellow, iron oxide brown,
One or more in iron oxide black are used in combination.
A kind of preparation process of fire-retardant ageing-resistant sealing joint strip is as follows：
(1) using Chemical coating method, white carbon surface is coated into one layer of silane coupling agent.
(2) butyl rubber and ethylene-propylene diene copolymer and various small powders are weighed according to the requirement of formula, it is spare.
(3) will be put into after load weighted butyl rubber and ethylene-propylene diene copolymer chopping in mixer, mixing at 150~170 DEG C
5min。
(4) the processed white carbon of silane coupling agent, fire retardant and naphthenic oil are added in into mixer successively and are kneaded 4min,
Pigment, anti-aging agent mixing 2min are subsequently added into, activating agent, lubricant mixing 5min is eventually adding, treats that temperature drops to 30 DEG C of discharges
Sizing material.
(5) sizing material of discharge is put into open mill, sequentially adds sulphur, accelerating agent and DCP and be kneaded, it is left during mixing
Right rubber tapping is each three times, and then adjusting roller spacing carries out thin logical, clot, beats triangle bag, and adjusting roller spacing bottom sheet is kneaded
Glue.
After being parked for 24 hours under rubber compound room temperature, vulcanized in a mold, finally obtain sealing joint strip.
Compared with prior art, the invention has the advantages that：It employs butyl rubber and ethylene-propylene diene copolymer is made a living
Glue, and be with the addition of fire retardant and anti-aging agent, the sealing joint strip of preparation not only can with waterproof and dustproof, sound insulation, heat-insulated, buffering vibration,
And it with excellent resistance to ag(e)ing, overcomes conventional hermetic adhesive tape and easily softens the drawbacks of tacky.By adding pigment, make made
Standby sealing strip can set each other off with the doorframe harmony of surrounding, improve the dull color always based on black color.In addition, sealing
Adhesive tape also has fire-retardant effect, meets modern architecture fireproof requirement, is conducive to provide healthy and safe environment for people.
Specific embodiment
The present invention is described in detail with reference to embodiment, but embodiment should not limit the scope of the invention.
【Embodiment 1】
A kind of fire-retardant ageing-resistant sealing joint strip, employs butyl rubber and ethylene-propylene diene copolymer as raw rubber and is with the addition of fire-retardant
Agent, anti-aging agent and pigment are prepared, which has excellent performance, attractive appearance；It includes the component of following mass fraction：
50 parts of butyl rubber, 50 parts of ethylene-propylene diene copolymer, 20 parts of white carbon, 1.5 parts of silane coupling agent (Si-69), 16 parts of naphthenic oil, sulphur
0.5 part, 0.4 part of captax, 0.3 part of Vulcanization accelerator TMTD, 3.5 parts of nano zine oxide, 5 parts of zinc stearate, peroxidating diisopropyl
0.6 part of benzene (DCP), 4,020 0.6 parts, 4010NA1.4 parts, 5 parts of aluminium hydroxide, 6 parts of phosphate, 4 parts of chlorinated paraffin, iron oxide
Red 2 parts.
A kind of preparation process of fire-retardant ageing-resistant sealing joint strip is as follows：
(1) using Chemical coating method, white carbon surface is coated into one layer of silane coupling agent Si-69.
(2) butyl rubber and ethylene-propylene diene copolymer and various small powders are weighed according to the requirement of formula, it is spare.
(3) will be put into after load weighted butyl rubber and ethylene-propylene diene copolymer chopping in mixer, mixing 5min at 155 DEG C.
(4) the processed white carbons of silane coupling agent Si-69, aluminium hydroxide, phosphate, chlorine are added in into mixer successively
Fossil waxes and naphthenic oil are kneaded 4min, are subsequently added into iron oxide red, 4020,4010NA mixing 2min, are eventually adding nano oxidized
Zinc and zinc stearate are kneaded 5min, treat that temperature drops to 30 DEG C of discharge sizing materials.
(5) sizing material of discharge is put into open mill, sequentially adds sulphur, captax, Vulcanization accelerator TMTD and DCP and carry out
It is kneaded, rubber tapping is each three times during mixing or so, and then adjusting roller spacing carries out thin logical, clot, beats triangle bag, adjusting roller spacing
Bottom sheet obtains rubber compound.
After being parked for 24 hours under rubber compound room temperature, vulcanized in a mold, finally obtain sealing joint strip.
【Embodiment 2】
A kind of fire-retardant ageing-resistant sealing joint strip, employs butyl rubber and ethylene-propylene diene copolymer as raw rubber and is with the addition of fire-retardant
Agent, anti-aging agent and pigment are prepared, which has excellent performance, attractive appearance；It includes the component of following mass fraction：
55 parts of butyl rubber, 45 parts of ethylene-propylene diene copolymer, 40 parts of white carbon, 2.0 parts of silane coupling agent (KH550), 14 parts of naphthenic oil, sulphur
0.8 part, 0.2 part of diphenylguanidine, 0.6 part of accelerant CZ, 5 parts of nano zine oxide, 6 parts of paraffin, cumyl peroxide (DCP)
0.5 part, 4010NA1 parts, 1 part of antioxidant MB, 4.5 parts of saleratus, 7 parts of zinc borate, 5 parts of chlorinated paraffin, 2 parts of iron oxide yellow.
A kind of preparation process of fire-retardant ageing-resistant sealing joint strip is as follows：
(1) using Chemical coating method, white carbon surface is coated into one layer of Silane coupling agent KH550.
(2) butyl rubber and ethylene-propylene diene copolymer and various small powders are weighed according to the requirement of formula, it is spare.
(3) will be put into after load weighted butyl rubber and ethylene-propylene diene copolymer chopping in mixer, mixing 5min at 160 DEG C.
(4) the processed white carbon of Silane coupling agent KH550, saleratus, zinc borate, chlorine are added in into mixer successively
Fossil waxes and naphthenic oil are kneaded 4min, are subsequently added into iron oxide yellow, antioxidant MB, 4010NA and are kneaded 2min, are eventually adding nanometer
Zinc oxide and paraffin are kneaded 5min, treat that temperature drops to 30 DEG C of discharge sizing materials.
(5) sizing material of discharge is put into open mill, sequentially adds sulphur, diphenylguanidine, accelerant CZ and DCP and mixed
Refining, rubber tapping is each three times during mixing or so, and then adjusting roller spacing carries out thin logical, clot, beats triangle bag, under adjusting roller spacing
Piece obtains rubber compound.
After being parked for 24 hours under rubber compound room temperature, vulcanized in a mold, finally obtain sealing joint strip.
Above example is only exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make the present invention respectively in the essence and protection domain of the present invention
Kind modification or equivalent substitution, this modification or equivalent substitution also should be regarded as in protection scope of the present invention.
Claims (10)
1. a kind of fire-retardant ageing-resistant sealing joint strip, it is characterised in that：Butyl rubber and ethylene-propylene diene copolymer are used as raw rubber and is added
Fire retardant, anti-aging agent and pigment, the sealing joint strip of preparation are had excellent performance, attractive appearance；It includes the group of following mass fraction
Point：50~60 parts of butyl rubber, 40~50 parts of ethylene-propylene diene copolymer, 20~40 parts of white carbon, 1.5~4 parts of silane coupling agent, cycloalkanes
10~20 parts of oil, 0.5~1 part of sulphur, 0.5~0.8 part of accelerating agent, 3~8 parts of activating agent, 5~10 parts of lubricant, peroxidating two
0.5~4 part of isopropylbenzene (DCP), 1~2 part of anti-aging agent, 10~20 parts of fire retardant, 1~10 part of pigment.
2. the fire-retardant ageing-resistant sealing joint strip of one kind according to claim 1, it is characterised in that：The butyl rubber is general
Logical butyl rubber.
3. the fire-retardant ageing-resistant sealing joint strip of one kind according to claim 1, it is characterised in that：The silane coupling agent is
One kind in Si-69, KH550, KH792.
4. the fire-retardant ageing-resistant sealing joint strip of one kind according to claim 1, it is characterised in that：The white carbon is right
It is required that the white carbon that the silane coupling agent in 3 was anticipated by Chemical coating method.
5. the fire-retardant ageing-resistant sealing joint strip of one kind according to claim 1, it is characterised in that：The accelerating agent is promotion
Two or more in agent M, Vulcanization accelerator TMTD, diphenylguanidine, accelerant CZ are used in combination.
6. the fire-retardant ageing-resistant sealing joint strip of one kind according to claim 1, it is characterised in that：The activating agent is nanometer
Zinc oxide.
7. the fire-retardant ageing-resistant sealing joint strip of one kind according to claim 1, it is characterised in that：The lubricant is stone
One or more in wax, zinc stearate, stearic acid are used in combination.
8. the fire-retardant ageing-resistant sealing joint strip of one kind according to claim 1, it is characterised in that：The anti-aging agent is
4020th, the one or more in 4010NA, antioxidant MB are used in combination.
9. the fire-retardant ageing-resistant sealing joint strip of one kind according to claim 1, it is characterised in that：The fire retardant is hydrogen-oxygen
The one or more changed in aluminium, saleratus, phosphate, zinc borate, chlorinated paraffin are used in combination.
10. the fire-retardant ageing-resistant sealing joint strip of one kind according to claim 1, it is characterised in that：The pigment is oxidation
One or more in iron oxide red, iron oxide yellow, iron oxide brown, iron oxide black are used in combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810007657.9A CN108102233A (en) | 2018-01-04 | 2018-01-04 | A kind of fire-retardant ageing-resistant sealing joint strip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810007657.9A CN108102233A (en) | 2018-01-04 | 2018-01-04 | A kind of fire-retardant ageing-resistant sealing joint strip |
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| CN108102233A true CN108102233A (en) | 2018-06-01 |
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ID=62218889
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| CN201810007657.9A Pending CN108102233A (en) | 2018-01-04 | 2018-01-04 | A kind of fire-retardant ageing-resistant sealing joint strip |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401078A (en) * | 2018-10-30 | 2019-03-01 | 苏州国泰科技发展有限公司 | Rubber blinker and preparation method thereof |
| CN109438862A (en) * | 2018-12-04 | 2019-03-08 | 温州包鹿新材料有限公司 | The preparation method of high leakproofness water-proof sealing rubber strip |
| CN109467826A (en) * | 2018-12-06 | 2019-03-15 | 铜陵新创流体科技有限公司 | A kind of stretch-proof sealing gasket for valve |
| CN111440388A (en) * | 2020-04-09 | 2020-07-24 | 西安向阳航天材料股份有限公司 | Rubber sealing material for electrical equipment and preparation method thereof |
| CN118496595A (en) * | 2024-07-17 | 2024-08-16 | 江苏润泰银科技股份有限公司 | Scratch-resistant high-resilience automobile windshield sealing strip and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401078A (en) * | 2018-10-30 | 2019-03-01 | 苏州国泰科技发展有限公司 | Rubber blinker and preparation method thereof |
| CN109438862A (en) * | 2018-12-04 | 2019-03-08 | 温州包鹿新材料有限公司 | The preparation method of high leakproofness water-proof sealing rubber strip |
| CN109438862B (en) * | 2018-12-04 | 2024-02-02 | 浙江博士龙密封科技有限公司 | Preparation method of waterproof sealing adhesive tape with high sealing performance |
| CN109467826A (en) * | 2018-12-06 | 2019-03-15 | 铜陵新创流体科技有限公司 | A kind of stretch-proof sealing gasket for valve |
| CN111440388A (en) * | 2020-04-09 | 2020-07-24 | 西安向阳航天材料股份有限公司 | Rubber sealing material for electrical equipment and preparation method thereof |
| CN118496595A (en) * | 2024-07-17 | 2024-08-16 | 江苏润泰银科技股份有限公司 | Scratch-resistant high-resilience automobile windshield sealing strip and preparation method thereof |
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