CN109609060A - A kind of automobile lampshade pressure sensitive sealant glue and preparation method thereof - Google Patents
A kind of automobile lampshade pressure sensitive sealant glue and preparation method thereof Download PDFInfo
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- CN109609060A CN109609060A CN201811483087.7A CN201811483087A CN109609060A CN 109609060 A CN109609060 A CN 109609060A CN 201811483087 A CN201811483087 A CN 201811483087A CN 109609060 A CN109609060 A CN 109609060A
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- automobile lampshade
- sensitive sealant
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- 239000000565 sealant Substances 0.000 title claims abstract description 28
- 239000003292 glue Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 229920002367 Polyisobutene Polymers 0.000 claims abstract description 18
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 13
- 239000004034 viscosity adjusting agent Substances 0.000 claims abstract description 13
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 claims abstract description 12
- ROGIWVXWXZRRMZ-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical class CC(=C)C=C.C=CC1=CC=CC=C1 ROGIWVXWXZRRMZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000001993 wax Substances 0.000 claims description 28
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- -1 polyethylene Polymers 0.000 claims description 14
- 239000006229 carbon black Substances 0.000 claims description 9
- 239000003208 petroleum Substances 0.000 claims description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 4
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 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 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000005984 hydrogenation reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000004200 microcrystalline wax Substances 0.000 claims description 4
- 239000012188 paraffin wax Substances 0.000 claims description 4
- 150000003505 terpenes Chemical class 0.000 claims description 4
- 235000007586 terpenes Nutrition 0.000 claims description 4
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 229910052570 clay Inorganic materials 0.000 claims description 3
- 238000004898 kneading Methods 0.000 claims description 3
- 239000004579 marble Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 229920001400 block copolymer Polymers 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 229910052788 barium Inorganic materials 0.000 claims 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 1
- 125000005504 styryl group Chemical group 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 10
- 238000007789 sealing Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 238000007664 blowing Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000008601 oleoresin Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000012803 melt mixture Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920002633 Kraton (polymer) Polymers 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004589 rubber sealant Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C09J123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C09J123/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefines
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The present invention provides a kind of automobile lampshade pressure sensitive sealant glue, including following components: the hydrogenated styrene-butadiene block copolymer or hydrogenated styrene isoprene block copolymer of 10~40 parts by weight, the viscosity modifier of 5~20 parts by weight, the polyisobutene of 20~80 parts by weight, the wax of 1~10 parts by weight, the filler of 5~20 parts by weight and 0.5~2 parts by weight antioxidant;Preparation method is also provided.The pressure-sensitive good operability of sealant of the invention has excellent air-tightness, weatherability and heating detachability, and is easy to repair and recycle after removing.
Description
Technical field
The present invention relates to sealant technical fields, and in particular to a kind of automobile lampshade pressure sensitive sealant glue and preparation method thereof.
Background technique
It needs to keep good air-tightness between automobile lampshade and car body, can enter outside air and steam not, to guarantee
Good illuminating effect, and extend the service life of car light;Additionally there is good application property, prosthetic and detachable
Property.
It is previous mainly to be realized using molded gasket or butyl rubber adhesive in the sealing of automobile lamp assembly outer cover.But
It is that molded gasket is easily deformed under pressure state, leakproofness can gradually be deteriorated, it is difficult to be used for a long time;And butyl rubber uses temperature
Degree is lower than 100 DEG C, and room temperature resilience is poor, and high temperature air-tightness is insufficient, and is not easily repaired and recycles when peeling.
Summary of the invention
For the above-mentioned deficiency of the prior art, there is good air-tightness the object of the present invention is to provide one kind and can repair
Multiple, dismountable automobile lampshade pressure sensitive sealant glue.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of automobile lampshade pressure sensitive sealant glue, including following components: the hydrogenated styrene-butadiene of 10~40 parts by weight is embedding
Section copolymer or hydrogenated styrene isoprene block copolymer, the viscosity modifier of 5~20 parts by weight, 20~80 parts by weight
Polyisobutene, the wax of 1~10 parts by weight, the filler of 5~20 parts by weight and 0.5~2 parts by weight antioxidant.
Preferably, the hydrogenated styrene-butadiene block copolymer or hydrogenated styrene isoprene block copolymer
Number-average molecular weight be 6~100,000, styrol structural unit content be 28~38wt%, hydrogenation degree >=98%.
Preferably, the viscosity average molecular weigh of the polyisobutene is 90000~100000.
Preferably, the viscosity modifier be selected from Petropols, terpene resin, rosin resin or at least one of.More
Hydrogenated petroleum resin is preferably included, most preferably includes modified hydrogenated Petropols.
Preferably, the wax is selected from paraffin, microwax, Fisher-Tropsh synthetic wax, low-molecular polyethylene wax, low point
At least one of sub- polypropylene wax, Atactic Polypropylene wax or modified waxes.
Preferably, the filler is selected from calcium carbonate, barium sulfate, clay, titanium dioxide, carbon black, micro- glass marble and talcum powder
At least one of.
Preferably, the antioxidant is sterically hindered phenol or bulky amine.
The present invention also provides the preparation methods of the automobile lampshade pressure sensitive sealant glue, comprising steps of
Each group is placed in vacuum kneader, in 200 DEG C or more vacuum kneadings, until being uniformly mixed.
Beneficial effects of the present invention:
In above-mentioned each component, hydrogenated styrene-butadiene block copolymer or hydrogenated styrene isoprene block are total
Polymers can increase adhesion strength and ageing-resistant performance, and polyisobutene is for improving flexibility and extensibility, with viscosity modifier
It arranges in pairs or groups with wax, moreover it is possible to system viscosity be effectively reduced, guarantee good construction operability.Sealant of the invention is heated to 150
Degree can be directly used for the sealing of automobile lampshade, have good rebound leakproofness, pressure-sensitive operational and outstanding air-tightness,
Weatherability and heating detachability.
Specific embodiment
The present invention will be described in detail With reference to embodiment.It should be understood that described herein
Specific embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Automobile lampshade pressure sensitive sealant glue of the invention includes component: the hydrogenated styrene-butadiene of 10~40 parts by weight is embedding
Section copolymer or hydrogenated styrene isoprene block copolymer, the viscosity modifier of 5~20 parts by weight, 20~80 parts by weight
Polyisobutene, the wax of 1~10 parts by weight, the filler of 5~20 parts by weight and 0.5~2 parts by weight antioxidant.
Wherein, the hydrogenated styrene-butadiene block copolymer or hydrogenated styrene isoprene block copolymer
For increasing adhesion strength, improve ageing-resistant performance.Inventors have found that hydrogenated styrene-butadiene block copolymer or hydrogen
The additive amount for changing styrene-isoprene block copolymer, which has above-mentioned performance, to be significantly affected, additive amount preferably between 10~
Between 40wt%.If being lower than 10wt%, weatherability and removable property are insufficient;If being higher than 40wt%, cohesive force is insufficient, and
Will cause viscosity it is excessively high and influence construction.Preferably, the hydrogenated styrene-butadiene block copolymer or hydrogenated styrene-
The number-average molecular weight of isoprene block copolymer is 6~100,000, and styrol structural unit content is 28~38wt%, hydrogenation degree
>=98%.
The polyisobutene is arranged in pairs or groups for improving flexibility and extensibility with viscosity modifier and wax, moreover it is possible to effectively drop
Low system viscosity guarantees good construction operability.Polyisobutene dosage is preferably controlled in 20~80wt%, if being lower than
20wt%, then its cohesive force and tensile ductility are insufficient, while may cause system viscosity increase, make operability change of constructing
Difference;If being higher than 80wt%, the dismountable property of lampshade and sealant removable property are insufficient, can also reduce hot melting temperature, influence lampshade
Leakproofness.Preferably, the viscosity average molecular weigh of the polyisobutene is 90000~100000.
The viscosity modifier can use the substance well known in the art for reducing system viscosity, such as can be petroleum
The collocation of one or more of resin, terpene resin or rosin resin.Hydrogenated petroleum resin is preferably included, more excellent includes changing
Property hydrogenated petroleum resin, can be modified C5 hydrogenated petroleum resin, modified C9 hydrogenated petroleum resin, for reducing viscosity and increase
The hardness of sealant, method of modifying can be phenylethene modified etc..The viscosity modifier dosage is 5-20wt%, close to realize
The balance of sealing property and removable property energy.Inventors have found that leakproofness can be made to become when viscosity modifier dosage is lower than 5wt%
Difference, and be higher than 20wt% when, the dismounting of lampshade and the removing of sealant start to become difficult.
The wax is for improving viscosity and removable property, it is preferred to use paraffin, microwax, Fisher-Tropsh synthetic wax,
One or more of low-molecular polyethylene wax, low-molecular polypropylene wax, Atactic Polypropylene wax or modified waxes compounding.
The filler in calcium carbonate, barium sulfate, clay, titanium dioxide, carbon black, micro- glass marble and talcum powder at least
It is a kind of.The antioxidant is sterically hindered phenol or bulky amine.
The preparation method of the automobile lampshade pressure sensitive sealant glue, comprising steps of each group is placed in vacuum kneader,
200 DEG C or more vacuum kneadings are uniformly mixed.
Below by way of specific embodiment, the present invention will be described.
In following embodiment and comparative example, hydrogenated styrene-butadiene block copolymer is that SEBS G1652M rises in section;Hydrogen
Changing styrene-isoprene block copolymer is that KRATON SIS D1183B rises in section;Viscosity modifier is phenylethene modified C5 stone
Oleoresin;Polyisobutene is the PB950 of South Korea great Lin.
Embodiment 1
The phenylethene modified C5 of the hydrogenated styrene-butadiene block copolymer of 10 parts by weight, 15 parts by weight is hydrogenated into stone
Oleoresin, the polyisobutene of 64 parts by weight, the carbon black of 5 parts by weight, the low-molecular polyethylene wax of 5 parts by weight, 1 parts by weight steric hindrance
Phenol is placed in vacuum kneader, and heating melts mixture, after vacuumize stirring, mixed 2 hours at 200 DEG C, rear blowing stores.
Embodiment 2
The phenylethene modified C5 of the hydrogenated styrene isoprene block copolymer of 15 parts by weight, 10 parts by weight is hydrogenated
Petropols, the polyisobutene of 59 parts by weight, the carbon black of 10 parts by weight, the low-molecular polypropylene wax of 5 parts by weight, 1 parts by weight
Sterically hindered phenol be placed in vacuum kneader in, heating melt mixture, after vacuumize stirring, mixed 2 hours at 200 DEG C, rear blowing
Storage.
Embodiment 3
The phenylethene modified C5 of the hydrogenated styrene-butadiene block copolymer of 10 parts by weight, 20 parts by weight is hydrogenated into stone
Oleoresin, the polyisobutene of 59 parts by weight, the carbon black of 5 parts by weight, the low-molecular polyethylene wax of 5 parts by weight, 1 parts by weight steric hindrance
Phenol is placed in vacuum kneader, and heating melts mixture, after vacuumize stirring, mixed 2 hours at 200 DEG C, rear blowing stores.
Embodiment 4
The phenylethene modified C5 of the hydrogenated styrene-butadiene block copolymer of 10 parts by weight, 10 parts by weight is hydrogenated into stone
Oleoresin, the polyisobutene of 72 parts by weight, the carbon black of 5 parts by weight, the low-molecular polyethylene wax of 2 parts by weight, 1 parts by weight steric hindrance
Phenol is placed in vacuum kneader, and heating melts mixture, after vacuumize stirring, mixed 2 hours at 200 DEG C, rear blowing stores.
Embodiment 5
By the hydrogenated styrene-butadiene block copolymer of 10 parts by weight, the phenylethene modified C5 non-hydrogenated petroleum of 3 parts by weight
Resin, the terpene resin of 2 parts by weight, the polyisobutene of 25 parts by weight, the carbon black of 2 parts by weight, the talcum powder of 3 parts by weight, 2 weight
Part paraffin, 0.5 parts by weight sterically hindered phenol merging vacuum kneader in, heating melts mixture, after vacuumize stirring, 200
It is mixed 2 hours at DEG C, rear blowing storage.
Embodiment 6
By the hydrogenated styrene isoprene block copolymer of 40 parts by weight, the Petropols of 15 parts by weight, 5 parts by weight
Rosin resin, the polyisobutene of 80 parts by weight, the carbon black of 10 parts by weight, the glass microsphere of 5 parts by weight, 5 parts by weight clay,
The low-molecular polyethylene wax of 5 parts by weight, the microwax of 5 parts by weight, 2 parts by weight bulky amine merging vacuum kneader in, heating
Melt mixture, after vacuumize stirring, mixed 2 hours at 200 DEG C, the storage of rear blowing.
In use, sizing material is heated to 150, it is allowed to be completely melt, is then squeezed by the uniform velocity flow gear pump
It in one metal spray gun, is injected in the gap between mounted automobile lampshade and car body under pressure, plays sealing and make
With.
Comparative example 1
Compared with Example 1, the dosage of hydrogenated styrene-butadiene block copolymer is 5 parts by weight.
Comparative example 2
Compared with Example 3, the dosage of phenylethene modified C5 hydrogenated petroleum resin is 3 parts by weight.
Comparative example 3
Compared with Example 1, the dosage of polyisobutene is 85 parts by weight.
Comparative example 4
Commercially available butyl rubber sealant.
Test case
The performances such as air-tightness, resistance to ag(e)ing and detachability for testing sealant.
(1) under artificial strong hydraulic pressure air-tightness test:
Under the hydraulic pressure up to 12 hours 20mm per hour, car light is opened, has seen whether that steam enters lampshade.
(2) high pressure water rinses test:
The pressure of giant is 3.0kgf/cm2, hydraulic giant nozzle is 30 centimetres at a distance from automobile lampshade sealing station,
The flow velocity of water is 27.5L/min, rinses after ten minutes, opens car light, seen whether that steam enters lampshade.
(3) ageing-resistant test:
Environment temperature is tested after from room temperature to -40 degree, maintains 80 hours, is then warming up to 90 degree, is maintained 80 hours, after by
It gradually cools at room temperature, and repeats above step 10 times, then tested, observed with the method that above-mentioned high pressure water rinses test
Whether there is steam to enter lampshade.
(4) removable property is tested:
Automobile lampshade after sealing is heated to certain temperature, then removes it from lampshade, record removes the time, and
Judge removing after sealant whether can be reused for sealing, judgment criteria are as follows: re-started after sealing above-mentioned test (1),
(2), (3) are judged as " can be reused for sealing " if consistent before test result and removing.
The test result of embodiment 1-6 and comparative example 1-4 are as shown in table 1.
Table 1
It can be seen from the above result that sealant of the invention has excellent air-tightness, weatherability and detachability, Er Qierong
It is easily peelable, it is easy to repair and recycle after dismounting.In addition, cooling velocity is slow after sealant melting of the invention, it is ensured that enough
Sealing uses the time, is easy to use.
Claims (9)
1. a kind of automobile lampshade pressure sensitive sealant glue, which is characterized in that including following components:
The hydrogenated styrene-butadiene block copolymer or hydrogenated styrene isoprene block copolymer of 10~40 parts by weight,
The viscosity modifier of 5~20 parts by weight, the polyisobutene of 20~80 parts by weight, the wax of 1~10 parts by weight, 5~20 parts by weight
The antioxidant of filler and 0.5~2 parts by weight.
2. automobile lampshade pressure sensitive sealant glue according to claim 1, which is characterized in that hydrogenated styrene-fourth two therein
The number-average molecular weight of alkene block copolymer or hydrogenated styrene isoprene block copolymer is 6~100,000, styryl structures list
First content is 28~38wt%, hydrogenation degree >=98%.
3. automobile lampshade pressure sensitive sealant glue according to claim 1, which is characterized in that the viscous equal molecule of the polyisobutene
Amount is 90000~100000.
4. automobile lampshade pressure sensitive sealant glue according to claim 1, which is characterized in that the viscosity modifier is selected from petroleum
At least one of resin, terpene resin or rosin resin.
5. automobile lampshade pressure sensitive sealant glue according to claim 4, which is characterized in that the viscosity modifier includes hydrogenation
Petropols.
6. automobile lampshade pressure sensitive sealant glue according to claim 1, which is characterized in that the wax be selected from paraffin, microwax,
In Fisher-Tropsh synthetic wax, low-molecular polyethylene wax, low-molecular polypropylene wax, Atactic Polypropylene wax or modified waxes
It is at least one.
7. automobile lampshade pressure sensitive sealant glue according to claim 1, which is characterized in that the filler is selected from calcium carbonate, sulphur
At least one of sour barium, clay, titanium dioxide, carbon black, micro- glass marble and talcum powder.
8. automobile lampshade pressure sensitive sealant glue according to claim 1, which is characterized in that the antioxidant is sterically hindered phenol or position
Hinder amine.
9. a kind of method for preparing the described in any item automobile lampshade pressure sensitive sealant glue of claim 1-8, which is characterized in that including
Step: each group is placed in vacuum kneader, in 200 DEG C or more vacuum kneadings, until being uniformly mixed.
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CN201811483087.7A CN109609060A (en) | 2018-12-05 | 2018-12-05 | A kind of automobile lampshade pressure sensitive sealant glue and preparation method thereof |
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CN201811483087.7A CN109609060A (en) | 2018-12-05 | 2018-12-05 | A kind of automobile lampshade pressure sensitive sealant glue and preparation method thereof |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113201299A (en) * | 2021-06-12 | 2021-08-03 | 德州鑫祥土工材料有限公司 | Hot melt adhesive and preparation method thereof |
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