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 PDF

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Publication number
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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CN
China
Prior art keywords
weight
parts
pressure sensitive
automobile lampshade
sensitive sealant
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811483087.7A
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Chinese (zh)
Inventor
樊丰文
王卫国
缪培凯
吕国强
杨波
符饶生
凌云剑
伍松
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Hunan Matsui New Materials Ltd By Share Ltd
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Hunan Matsui New Materials Ltd By Share Ltd
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Priority to CN201811483087.7A priority Critical patent/CN109609060A/en
Publication of CN109609060A publication Critical patent/CN109609060A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02Adhesives 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
    • C09J123/18Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C09J123/20Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C09J123/22Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefines
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08Macromolecular additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/14Gas barrier composition
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • 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

A kind of automobile lampshade pressure sensitive sealant glue and preparation method thereof
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.
CN201811483087.7A 2018-12-05 2018-12-05 A kind of automobile lampshade pressure sensitive sealant glue and preparation method thereof Pending CN109609060A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1089291A (en) * 1993-01-04 1994-07-13 化工部北京化工研究院 Reaction type hot-fusible pressure-sensitive adhesive
JP2016138210A (en) * 2015-01-29 2016-08-04 旭化成株式会社 Adhesive composition
CN108300372A (en) * 2017-12-19 2018-07-20 万事达胶带(湖北)股份有限公司 Butyl rubber melt pressure sensitive adhesive plaster based insulation adhesive tape and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1089291A (en) * 1993-01-04 1994-07-13 化工部北京化工研究院 Reaction type hot-fusible pressure-sensitive adhesive
JP2016138210A (en) * 2015-01-29 2016-08-04 旭化成株式会社 Adhesive composition
CN108300372A (en) * 2017-12-19 2018-07-20 万事达胶带(湖北)股份有限公司 Butyl rubber melt pressure sensitive adhesive plaster based insulation adhesive tape and preparation method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
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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