CN104327783A - Anticorrosive sealant for hems in automobile manufacturing - Google Patents
Anticorrosive sealant for hems in automobile manufacturing Download PDFInfo
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- CN104327783A CN104327783A CN201410684699.8A CN201410684699A CN104327783A CN 104327783 A CN104327783 A CN 104327783A CN 201410684699 A CN201410684699 A CN 201410684699A CN 104327783 A CN104327783 A CN 104327783A
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- sealing glue
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- flanging place
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Abstract
The invention relates to an anticorrosive sealant for hems in automobile manufacturing, particularly an anticorrosive sealants for hems of car doors, boot lids, hood shields and the like in the automobile manufacturing process, which has the functions of sealing, corrosion resistance and rust prevention. The anticorrosive sealant is a composition composed of an epoxy resin, a thermoplastic resin, synthetic rubber, a plasticizer, a latent curing agent, a vulcanizing agent, an accelerator, a preservative, a thixotropic agent and a filler. The sealant has the advantages of simple preparation technique, identical curing temperature and automobile production pipeline temperature, high storage stability, high toughness of the curing product, low cost and environmental protection. When being used for sealing, rust prevention and corrosion resistance of hems of car doors, boot lids, hood shields and the like, the sealant can greatly enhance the overall reliability and durability of the automobile. When in use, the sealant can be directly coated on the edge in need of sealing by an automatic coater or pressure spray gun, has the advantages of higher peel strength and lower internal stress, and is convenient to use.
Description
Technical field
The present invention relates to adhesive material, belong to materials science field.In particular to flanging place preserving and sealing glue in a kind of automobile making, be the preserving and sealing glue for flanging places such as car door, luggage-boot lid, engine bonnets in automobile manufacturing process, play sealing, anticorrosion, rust inhibition.
Background technology
In automobile making, flanging place preserving and sealing glue is because having the advantages such as easy construction, condensate performance be excellent and being widely used in car industry.In flanging place sealing in automobile main frame maker or car door accessory factory processing car door process, seal gum not only seals, and also plays the effects such as antirust, anticorrosion.Along with the development of automotive industry, require the seal gum at flanging position to have higher preservative property and good construction technology and to swim the adaptability of liquid with automobile electrical.Common seal gum viscosity is low, the easy molten mistake when being subject to the effect of automobile manufacturing process pre-treatment; In addition, due to the secondary deformation that the factor such as change due to temperature after common seal gum in the curing process autogenous shrinkage distortion and curable adhesive layer causes, make seal gum produce stress concentration phenomenon, and then cause place's steel plate deformeds such as arrangements for automotive doors.Therefore, research and develop that a kind of elongation at break is higher, stripping strength is higher, internal stress is lower, it is antirust to have, the list group seal gum of preservative activity, make it well absorb foreign impacts energy when being subject to extraneous stress, these stress concentration phenomenons are reduced to minimum, there is again good sealing, antirust, preservative activity to prevent steel plate deformed simultaneously.
Summary of the invention
The object of the invention is for solving common seal gum viscosity low, the easy molten mistake when being subject to the effect of automobile manufacturing process pre-treatment, stress concentration and cause the problem of steel plate deformed, provide flanging place preserving and sealing glue in a kind of automobile making of a kind of environmental protection, good airproof performance, antirust, low-stress.
Technical scheme of the present invention is: flanging place preserving and sealing glue in a kind of automobile making, is characterized in that: its composition forms by following weight percent:
Epoxy resin 10 ~ 20%
Thermoplastic resin 7 ~ 12%
Synthetic rubber 7 ~ 10%
Softening agent 1 ~ 10%
Latent curing agent 0.5 ~ 6%
Vulcanizing agent 0.5 ~ 3%
Promotor 0.5 ~ 3%
Sanitas 0.5 ~ 2%
Thixotropic agent 2 ~ 5%
Filler 35% ~ 71%.
The invention has the beneficial effects as follows: sealing glue preparation technology is simple, and solidification value is consistent with automobile production streamline temperature, and stability in storage is good, cured article good toughness, and cost is low, environmental protection.Be used for the sealing, antirust, anticorrosion at the flanging places such as arrangements for automotive doors, luggage-boot lid, engine bonnet with this seal gum of the present invention, greatly can improve reliability and the weather resistance of Integral automobile.During use can with automatic coating machine or Spray Gun Of The Pressure directly by sealant-coating at the edge needing sealing, stripping strength is higher, internal stress is lower, easy to use.
Embodiment
Flanging place preserving and sealing glue in a kind of automobile making, is characterized in that: its composition forms by following weight percent:
Epoxy resin 10 ~ 20%
Thermoplastic resin 7 ~ 12%
Synthetic rubber 7 ~ 10%
Softening agent 1 ~ 10%
Latent curing agent 0.5 ~ 6%
Vulcanizing agent 0.5 ~ 3%
Promotor 0.5 ~ 3%
Sanitas 0.5 ~ 2%
Thixotropic agent 2 ~ 5%
Filler 35% ~ 71%.
Epoxy resin selects one or more in bisphenol A-type low-molecular-weight epoxy resin E51 or bisphenol A-type middle-molecular-weihydroxyethyl epoxy resin E-44 or novolac epoxy F-51 or polyether modified epoxy epoxy resins EP-4000S or polyurethane modified epoxy resin EPU-73S.
Thermoplastic resin select pvc resin paste grade or vinyl acetate content be 8% vinyl chloride-vinyl acetate interpolymer paste resin or polychloroethylene blending resin or vinyl acetate content be one in the vinyl chloride-vinyl acetate copolymer resin of 8% or two kinds.
Synthetic rubber selects one in paracril or styrene-butadiene rubber(SBR) or cis-1,4-polybutadiene rubber or liquid polybutadiene or chloroprene rubber or two kinds.
Softening agent select in o-phthalic acid dibutyl ester or butyl benzyl phthalate or diisononyl phthalate or Di Iso Decyl Phthalate or polyester or dioctyl sebacate or hexanodioic acid dibutyl ester two or more.
Latent curing agent choice of powder Dyhard RU 100 or sebacic dihydrazide.
Vulcanizing agent selects sulphur or superoxide DCP or superoxide 40B.
Promotor selects 4,4 ' methylene radical-two (phenyl dimethyl urea) or N-(3,4-dichlorophenyls)-N ' or N '-dimethyl urea or altax or accelerant CZ or Vulcanization accelerator TMTD or promotor PZ two or more.
Sanitas is benzotriazole or Sodium Benzoate or butyl p-hydroxybenzoate.
Thixotropic agent selects thermal silica or organobentonite or hydrogenated castor oil.
Filler water-ground limestone or with stearic acid carry out in surface-treated nano-calcium carbonate or glass fiber powder or iron oxide black or talcum powder or process white or aluminium hydroxide, diatomite, rubber reinforcing filler A69, carbon black two or more.
Its composition of example 1 is by following weight percent composition:
Bisphenol A-type low-molecular-weight epoxy resin E51 12.5%
Epoxy novolac F-51 3.4%
Pvc resin paste grade 7%
Polychloroethylene blending resin 3%
Liquid polybutadiene 5%
Cis-1,4-polybutadiene rubber 4%
Diisononyl phthalate 8%
Hexanodioic acid dibutyl ester 1%
Dyhard RU 100 1.25%
Sulphur 0.7%
Altax 0.7%
Vulcanization accelerator TMTD 0.29%
N-(3,4-dichlorophenyl)-N ', N '-dimethyl urea 0.5%
Benzotriazole 0.5%
Thermal silica 2%
Carbon black 0.16%
Nano-calcium carbonate 30%
Process white 20%.
Its composition of example 2 is by following weight percent composition:
Polyether epoxy 4000S 14%
Polyurethane-epoxy resin EPU-73S 6%
Pvc resin paste grade 5%
Polyvinyl chloride-vinyl acetate between to for plastic interpolymer paste resin (vinyl acetate content is 8%) 5%
Paracril 7%
O-phthalic acid dibutyl ester 5%
Di Iso Decyl Phthalate 3%
Dioctyl sebacate 2%
Dyhard RU 100 2.0%
40B 0.7%
4,4 ' methylene radical-two (phenyl dimethyl urea) 0.6%
Promotor PZ 0.3%
Butyl p-hydroxybenzoate 1%
Organobentonite 2%
Rubber reinforcing filler A69 3.4%
Iron oxide black 10%
Aluminium hydroxide 10
Nano-calcium carbonate 23%.
Its composition of example 3 is by following weight percent composition:
Bisphenol A-type middle-molecular-weihydroxyethyl epoxy E-44 20%
Pvc resin paste grade 10%
Polyvinyl chloride-vinyl acetate between to for plastic copolymerization blending resin (vinyl acetate content is 8%) 2%
Styrene-butadiene rubber(SBR) 6%
Butyl benzyl phthalate 5%
O-phthalic acid dibutyl ester 4%
Hexanodioic acid dibutyl ester 1%
Sebacic dihydrazide 2%
DCP 0.6%
Accelerant CZ 0.4%
Sodium Benzoate 1%
Hydrogenated castor oil 4%
Diatomite 4%
Nano-calcium carbonate 22%
Glass fiber powder 8%
Water-ground limestone 10%
A. softening agent and a kind of filler is wherein added after being plasticated in Banbury mixer 10 minutes by synthetic rubber in above-mentioned materials in Banbury mixer mixing 10 minutes, obtained rubber unvulcanizate;
B. after above-mentioned materials epoxy resin, thermoplastic resin, latent curing agent, vulcanizing agent, sanitas, thixotropic agent and remaining filler being mixed, the rubber unvulcanizate one obtained with a reinstates three-roll grinder rolling three times, add promotor to be stirred to without a point shape thing, then use three-roll grinder rolling two times.Then mixture is added in planet stirring still and vacuumize 40 minutes, obtain product.
The technical indicator of product is:
Outward appearance (range estimation): black even paste, mechanical impurity;
Press flow viscosity (bore 2mm, pressure 0.5MPa, gel quantity 10g): (15 ~ 30) s
Density: 1.5 g/cm
3below;
Non-volatile part: >=98%;
Stability in storage (40 DEG C of viscosity rate of increase) :≤30%;
Heat 20min solidification at 170 DEG C, technical indicator is:
Volume change: ± %;
Sticking power: adhere to well with automotive sheet;
Mobility: transverse direction≤2mm, longitudinal direction≤2mm;
Hardness: 70 ~ 90 shore A;
Low-temperature bending: nothing is to crack, steel plate place;
Low adhesion: 100% remains;
Tensile strength: >=3 MPa;
Elongation at break: >=150%;
Shearing resistance: >=8 MPa;
Water tolerance (water-fast rear cementability): >=8 MPa;
Overbaking: not pin hole, crack performance;
Anti-elegant performance: without getting rusty phenomenon.
Claims (10)
1. a flanging place preserving and sealing glue in automobile making, is characterized in that: its composition forms by following weight percent:
Epoxy resin 10 ~ 20%
Thermoplastic resin 7 ~ 12%
Synthetic rubber 7 ~ 10%
Softening agent 1 ~ 10%
Latent curing agent 0.5 ~ 6%
Vulcanizing agent 0.5 ~ 3%
Promotor 0.5 ~ 3%
Sanitas 0.5 ~ 2%
Filler 37% ~ 76%.
2. flanging place preserving and sealing glue in a kind of automobile making as claimed in claim 1, is characterized in that: described epoxy resin selects one or more in bisphenol A-type low-molecular-weight epoxy resin E51, bisphenol A-type middle-molecular-weihydroxyethyl epoxy resin E-44, novolac epoxy F-51, polyether modified epoxy epoxy resins EP-4000S, polyurethane modified epoxy resin EPU-73S.
3. flanging place preserving and sealing glue in automobile making as claimed in claim 1, is characterized in that: described thermoplastic resin select pvc resin paste grade or vinyl acetate content be 8% vinyl chloride-vinyl acetate interpolymer paste resin or polychloroethylene blending resin or vinyl acetate content be one in the vinyl chloride-vinyl acetate copolymer resin of 8% or two kinds.
4. flanging place preserving and sealing glue in a kind of automobile making as claimed in claim 1, is characterized in that: described synthetic rubber selects one in paracril, styrene-butadiene rubber(SBR), cis-1,4-polybutadiene rubber, liquid polybutadiene, chloroprene rubber or two kinds.
5. flanging place preserving and sealing glue in a kind of automobile making as claimed in claim 1, is characterized in that: described softening agent select in o-phthalic acid dibutyl ester, butyl benzyl phthalate, diisononyl phthalate, Di Iso Decyl Phthalate, polyester, dioctyl sebacate, hexanodioic acid dibutyl ester two or more.
6. flanging place preserving and sealing glue in a kind of automobile making as claimed in claim 1, is characterized in that: described latent curing agent choice of powder Dyhard RU 100 or sebacic dihydrazide.
7. flanging place preserving and sealing glue in automobile making as claimed in claim 1, is characterized in that: described vulcanizing agent selects sulphur or superoxide DCP or superoxide 40B.
8. flanging place preserving and sealing glue in a kind of automobile making as claimed in claim 1, it is characterized in that: described promotor selects 4,4 ' methylene radical-two (phenyl dimethyl urea), N-(3,4-dichlorophenyl)-N ', N '-dimethyl urea, altax, accelerant CZ, Vulcanization accelerator TMTD, two or more in promotor PZ.
9. flanging place preserving and sealing glue in a kind of automobile making as claimed in claim 1, is characterized in that: described sanitas is benzotriazole or Sodium Benzoate or butyl p-hydroxybenzoate.
10. flanging place preserving and sealing glue in a kind of automobile making as claimed in claim 1, is characterized in that: described filler water-ground limestone, to carry out with stearic acid surface-treated nano-calcium carbonate, glass fiber powder, iron oxide black, talcum powder, process white, aluminium hydroxide, diatomite, rubber reinforcing filler A69, carbon black, gas-phase silica, organobentonite, in two or more.
Priority Applications (1)
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CN201410684699.8A CN104327783A (en) | 2014-11-25 | 2014-11-25 | Anticorrosive sealant for hems in automobile manufacturing |
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CN201410684699.8A CN104327783A (en) | 2014-11-25 | 2014-11-25 | Anticorrosive sealant for hems in automobile manufacturing |
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CN104327783A true CN104327783A (en) | 2015-02-04 |
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CN201410684699.8A Pending CN104327783A (en) | 2014-11-25 | 2014-11-25 | Anticorrosive sealant for hems in automobile manufacturing |
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Cited By (19)
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CN107345011A (en) * | 2017-08-09 | 2017-11-14 | 盐城市宝光车用材料有限公司 | A kind of high-foaming expansion glue |
CN107603500A (en) * | 2017-10-17 | 2018-01-19 | 王天石 | A kind of household special environment protection lute in and its preparation technology |
CN107629733A (en) * | 2017-09-20 | 2018-01-26 | 保光(天津)汽车零部件有限公司 | A kind of environmentally friendly weld joint sealant and preparation method thereof |
CN108865033A (en) * | 2018-08-06 | 2018-11-23 | 济南汉斯曼时代技术有限公司 | A kind of high removing toughness folding adhesive and preparation method thereof |
CN109181583A (en) * | 2018-08-29 | 2019-01-11 | 佛山科学技术学院 | A kind of architectural pottery walltile adhesive |
CN109593498A (en) * | 2018-11-28 | 2019-04-09 | 湖北回天新材料股份有限公司 | A kind of automobile folding adhesive and preparation method thereof |
CN109777311A (en) * | 2018-12-25 | 2019-05-21 | 三友(天津)高分子技术有限公司 | A kind of the reinforcement glue and production method of sprayable steel plate |
CN110093119A (en) * | 2019-05-31 | 2019-08-06 | 四川汇利实业有限公司 | A kind of high-barrier medical adhesive and preparation method thereof |
CN110128954A (en) * | 2019-05-13 | 2019-08-16 | 马其祥 | A kind of hot-melt pressure sensitive adhesive film and preparation method |
CN110172314A (en) * | 2019-05-30 | 2019-08-27 | 武汉市恒星防水材料有限公司 | A kind of PVC bonding agent and preparation method |
CN110373138A (en) * | 2019-07-12 | 2019-10-25 | 江苏同盟汽车零部件实业有限公司 | A kind of high-elongation folding adhesive and preparation method thereof |
CN110885656A (en) * | 2019-12-16 | 2020-03-17 | 芜湖海程橡塑有限公司 | Amorphous sealant for vehicles and preparation method thereof |
CN110922913A (en) * | 2019-11-12 | 2020-03-27 | 广东东方一哥新材料股份有限公司 | Water-based edge folding adhesive and preparation method thereof |
CN111087894A (en) * | 2019-12-18 | 2020-05-01 | 中国石油天然气股份有限公司 | Nano solvent-free epoxy anticorrosive paint and preparation method thereof |
CN112358839A (en) * | 2020-11-16 | 2021-02-12 | 三友(天津)高分子技术有限公司 | Single-component epoxy adhesive for automobile manufacturing |
CN114921195A (en) * | 2022-06-30 | 2022-08-19 | 武汉时利和汽车材料有限公司 | Aluminum alloy plate damping rubber with strong viscosity under long-open condition and preparation method thereof |
EP4095196A3 (en) * | 2021-05-25 | 2023-02-22 | Sunstar Engineering Inc. | Curable composition and method for producing curable composition |
CN115851192A (en) * | 2022-11-18 | 2023-03-28 | 上海双浦橡胶防腐衬里有限公司 | Hard repairing daub and preparation method and use method thereof |
EP4240801A4 (en) * | 2020-11-05 | 2024-06-19 | Henkel AG & Co. KGaA | Anti-flutter adhesive composition |
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CN101605859A (en) * | 2006-12-21 | 2009-12-16 | Sika技术股份公司 | Edging-fold bond |
CN102115654A (en) * | 2009-12-30 | 2011-07-06 | 湖北回天胶业股份有限公司 | Automobile hemming adhesive and preparation method thereof |
Cited By (22)
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CN107345011A (en) * | 2017-08-09 | 2017-11-14 | 盐城市宝光车用材料有限公司 | A kind of high-foaming expansion glue |
CN107629733A (en) * | 2017-09-20 | 2018-01-26 | 保光(天津)汽车零部件有限公司 | A kind of environmentally friendly weld joint sealant and preparation method thereof |
CN107603500A (en) * | 2017-10-17 | 2018-01-19 | 王天石 | A kind of household special environment protection lute in and its preparation technology |
CN108865033A (en) * | 2018-08-06 | 2018-11-23 | 济南汉斯曼时代技术有限公司 | A kind of high removing toughness folding adhesive and preparation method thereof |
CN109181583A (en) * | 2018-08-29 | 2019-01-11 | 佛山科学技术学院 | A kind of architectural pottery walltile adhesive |
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CN110373138B (en) * | 2019-07-12 | 2021-10-01 | 江苏同盟汽车零部件实业有限公司 | High-elongation edge folding adhesive and preparation method thereof |
CN110922913A (en) * | 2019-11-12 | 2020-03-27 | 广东东方一哥新材料股份有限公司 | Water-based edge folding adhesive and preparation method thereof |
CN110885656A (en) * | 2019-12-16 | 2020-03-17 | 芜湖海程橡塑有限公司 | Amorphous sealant for vehicles and preparation method thereof |
CN111087894A (en) * | 2019-12-18 | 2020-05-01 | 中国石油天然气股份有限公司 | Nano solvent-free epoxy anticorrosive paint and preparation method thereof |
EP4240801A4 (en) * | 2020-11-05 | 2024-06-19 | Henkel AG & Co. KGaA | Anti-flutter adhesive composition |
CN112358839A (en) * | 2020-11-16 | 2021-02-12 | 三友(天津)高分子技术有限公司 | Single-component epoxy adhesive for automobile manufacturing |
EP4095196A3 (en) * | 2021-05-25 | 2023-02-22 | Sunstar Engineering Inc. | Curable composition and method for producing curable composition |
US11920028B2 (en) | 2021-05-25 | 2024-03-05 | Sunstar Engineering Inc. | Curable composition and method for producing curable composition |
CN114921195A (en) * | 2022-06-30 | 2022-08-19 | 武汉时利和汽车材料有限公司 | Aluminum alloy plate damping rubber with strong viscosity under long-open condition and preparation method thereof |
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Application publication date: 20150204 |