CN105038432A - Thermosetting foamable primer and preparation method thereof - Google Patents
Thermosetting foamable primer and preparation method thereof Download PDFInfo
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- CN105038432A CN105038432A CN201510514215.XA CN201510514215A CN105038432A CN 105038432 A CN105038432 A CN 105038432A CN 201510514215 A CN201510514215 A CN 201510514215A CN 105038432 A CN105038432 A CN 105038432A
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Abstract
The invention discloses a thermosetting foamable primer composed of the following components in percentage by mass: 20-35% of PVC resin, 15-30% of filler, 25-40% of a plasticizer, 4-8% of a dispersing agent, 1-15% of a thickening agent, 2-10% of a moisture absorbent, 0.4-0.8% of a microsphere foaming agent and 1-5% of a stabilizer. The preparation method comprises the following steps: (1) firstly, uniformly mixing all the plasticizer and the dispersing agent in proportion in a formula, adding other powder raw materials into mixing equipment, and stirring for dispersing to ensure that the raw materials are mixed uniformly and no particles exist; (2) transferring the product obtained in the step (1) from the mixing equipment to a stirring kettle after uniformly stirring, standing and curing; (3) measuring the viscosity of the product after ending the curing operation, and additionally adding the plasticizer to regulate the viscosity of the product to a required numerical value; and (4) after the viscosity meets the requirement, filtering to obtain the thermosetting foamable primer. The primer is mainly used for stone impact protection of vehicle underpans and wheel covers; compared with the traditional product, the thermosetting foamable primer is lower in weight under the condition of same thickness, so that the requirement of a consumer for reducing the weight of a vehicle body can be met.
Description
Technical field
The present invention relates to a kind of primary coat glue, particularly relate to a kind of heat embrittlement expansion type primary coat glue acting on automobile chassis and wheelhouse portions and preparation method thereof.
Background technology
In general, most of automobile domain and wheelhouse portions surface smear primary coat glue, play waterproof, preventing stone, antirust, reduce the effect of noise, primary coat glue is smeared before middle painting paint spay-coating, after glue prebake → middle painting → finish paint baking oven baking, complete sclerous reaction.
After original primary coat glue oven dry, density is higher, add car body weight, automobile factory reduces the object of tare in order to reach, adopt foaming bottom gluing, product is smeared thinner than traditional bottom gluing, reach the effect same with traditional bottom gluing through 40% foaming, under the prerequisite of guaranteed performance, reduce deadweight, thus reach the object reducing tare.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of technique meeting automobile factory to change requirement, reach the heat embrittlement expansion type primary coat glue reducing tare.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of heat embrittlement expansion type primary coat glue, be made up of polyvinyl chloride resin, weighting agent, softening agent, dispersion agent, tackifier, moisture adsorbent, whipping agent, stablizer, by mass percentage, it specifically consists of: PVC copolymer resin 20 ~ 35%, weighting agent 15 ~ 30%, softening agent 25 ~ 40%, dispersion agent 4 ~ 8%, tackifier 1 ~ 15%, moisture adsorbent 2 ~ 10%, whipping agent 0.4-0.8%, stablizer 1 ~ 5%;
Described whipping agent is microballoon whipping agent.
A kind of heat embrittlement expansion type primary coat glue, by mass percentage, it preferably consists of: PVC homopolymerization resin 5 ~ 15%, PVC copolymer resin 5 ~ 15%, PVC blending resin 2 ~ 5%, weighting agent 15 ~ 30%, softening agent 25 ~ 40%, dispersion agent 4 ~ 8%, tackifier 1 ~ 15%, moisture adsorbent 2 ~ 10%, microballoon whipping agent 0.4-0.8%, stablizer 1 ~ 5%.
Each moiety about described primary coat glue is described as follows:
The effect of described polyvinyl chloride resin, product is made to have strong elastic and toughness, be applied in steel plate connecting portion, play waterproof, preventing stone, antirust, reduce the effect of noise, mass percentage 20 ~ 35% in full composition, if content has intensity lower than 20% and toughness reduces, waterproof, the problem that antirust, reduction function of noise is low occur, if content can smear disengaging problem higher than 35%.Polyvinyl chloride resin in the present invention be stick with paste resin, stick with paste resin can be used alone copolymer resins, or the homopolymerization resin of 5 ~ 15%, 5 ~ 15% copolymer resins, 2 ~ 5% blending resin used in combination.
Described weighting agent is coarse whiting, is without coating coarse whiting and/or coating coarse whiting.Coarse whiting is exactly calcite in powder, is the abbreviation of water-ground limestone, is to be ground by natural carbonate mineral form as calcite, marble, Wingdale, is conventional powdery inorganic filler.The effect of weighting agent improves workability, antitrickle, maintains even intensity, suitable mass percentage 15 ~ 30% in full composition, if content, lower than 15%, trickling problem can occur, reduces and film cracking problem if content has PVC elasticity more than 30%.
Described moisture adsorbent is without coating oxidation calcium, and suitable mass percentage is 2 ~ 10%, if content is lower than 2%, has bubble and have problems when the intrusion because of outside moisture is hardened, if content has albefaction more than 10% and cracking phenomena occurs.
The effect of described softening agent is the plasticity increasing polyvinyl chloride resin, gives PVC when smearing workability and sclerosis and has toughness and elasticity.Suitable mass percentage 20 ~ 35% in full composition, if to have viscosity lower than 25% too high for content, the low problem of workability occurs, if to have viscosity higher than 35% too low for content, trickling phenomenon and the low problem of intensity occur.Described softening agent is dioctyl phthalate (DOP) or diisononyl phthalate.
The effect of described tackifier makes product can be attached to tack on steel plate, and improve the force of cohesion of product.Suitable mass percentage is 1 ~ 15%, and occur if content has the low problem of the bad force of cohesion of sticking power lower than 1%, if content can make higher than 15%, product strength is excessive causes film cracking problem.Above-mentioned tackifier are the modified polyamide product (SY-533) that Wuxi great kindness synthetic materials company limited produces.
Described stablizer mass percentage 1 ~ 5%, if PVC has xanthochromia problem and occurs when content does thermotolerance lower than 1%, if content has sticking power more than 5%, low problem occurs, and zinc oxide selected by described stablizer, or also can select lead-containing compounds.
The effect of described dispersion agent is the operability improving product, the suitable mass percentage 4 ~ 8% in full composition, occurs if content has the bad problem of operability workability lower than 4%, occurs if content has the too low problem of solid part higher than 8%.Described dispersion agent selects boiling point at the hydrocarbon polymer of 140 DEG C-310 DEG C.
Described whipping agent mass percentage 0.4-0.8%, if content does not reach customer requirement lower than 0.4% foaming effect, if if to have frothing percentage higher than 0.8% too high for content, thus causes the shearing resistance of anti-hitting property of stone and product to decline.Described whipping agent is the F-78KD microballoon whipping agent that Japanese Matsumoto Yushi-Seiyaku Co., Ltd. produces.
Second technical problem to be solved by this invention is: the preparation method providing a kind of heat embrittlement expansion type primary coat glue.
For solving second with regard to technical problem, the technical scheme adopted is: a kind of preparation method of heat embrittlement expansion type primary coat glue, the steps include:
1) first whole softening agent and dispersion agent are added in three axle stirrers, open agitating vane and prevent powder from sticking to a barrel wall, open ribbon blade and powder and liquid material are stirred up and down stir, then described formula rate is poured into powder in three axle stirrers; Open high speed dispersion axle after powder is all finished down, rely on the stirring of high speed dispersion axle to make to mix without particle; In whole process, control temperature must not higher than 40 DEG C;
2) after vacuum condition stirs and terminates, step 1) product of gained is transplanted in stirring tank from three axle stirrers, and place and make product slaking in more than 8 hours;
3) slaking complete after mensuration product viscosity, (softening agent added is mainly used in adjusting the viscosity of product to add softening agent in addition, because of viscosity with temperature change, customer requirement, all can there is change in atmospheric moisture and the difference often criticizing raw material, in order to adjust to the viscosity of needs, the plasticising dosage added in maturing process is all different ninety-nine times out of a hundred, does not calculate at recipe) adjust product to requiring viscosity; Need after adding softening agent to stir, agitation condition is at every turn: stir pressure lower than-0.08MPa, churning time: 20 ± 5 minutes;
4), after viscosity reaches requirement, heat embrittlement expansion type primary coat glue is filtered to obtain through 60 ~ 80 mesh filter screens.
Beneficial effect: heat embrittlement expansion type primary coat glue disclosed in the present application, frothing percentage reaches 40% after baking, and the usage quantity of heat embrittlement expansion type primary coat glue is 1.8 kilograms, and traditional bottom gluing usage quantity is 3 kilograms.The technique meeting automobile factory changes requirement, reaches the effect reducing tare.
Embodiment:
It is below the detailed description according to embodiment and comparative example.
Table one is the synopsis that embodiment and comparative example 1,2 respectively become to be grouped into.
Table two is each physicals synopsis under embodiment and comparative example 1,2 toast 30 minutes situations at 140 DEG C:
Above table two can reflect that embodiment and comparative example 1,2 toast at 140 DEG C and within 30 minutes, use primary coat glue weight difference larger in situation.And embodiment 1 due to formula in polyvinyl chloride resin content lower, when use foaming agent foam, expansion ratio reaches requirement, consumption reduce, but shearing resistance, tensile strength reduce.Embodiment 2 product performance are good, meet the requirements.Embodiment 3 product performance are good, meet the requirements, but use polyvinyl chloride resin more, and cost is higher, in actual production process, do not produce value in batches.
The technological process of production of primary coat glue of the present invention is conventional at present, first be that each component is uniformly mixed placement after 1 ~ 2 day according to proportioning of the present invention, and then successively after maturation, viscosity adjustment, physical property detect operation, after finally filtering and packaging, obtain finished product.
As can be seen from above table one, table two, primary coat glue disclosed in technical scheme compare traditional primary coat glue 140 DEG C baking 30 minutes situations under, disclosed in technical scheme, primary coat glue has larger reduction in usage quantity.The processing requirement that client reduces consumption can be met, reduce the cost of client, reduce tare.
Claims (8)
1. a heat embrittlement expansion type primary coat glue, be made up of PVC copolymer resin, weighting agent, softening agent, dispersion agent, tackifier, moisture adsorbent, whipping agent, stablizer, it is characterized in that: by mass percentage, it consists of PVC copolymer resin 20 ~ 35%, weighting agent 15 ~ 30%, softening agent 25 ~ 40%, dispersion agent 4 ~ 8%, tackifier 1 ~ 15%, moisture adsorbent 2 ~ 10%, whipping agent 0.4-0.8%, stablizer 1 ~ 5%;
Described whipping agent is microballoon whipping agent.
2. a heat embrittlement expansion type primary coat glue, it is characterized in that: by mass percentage, it consists of: PVC homopolymerization resin 5 ~ 15%, PVC copolymer resin 5 ~ 15%, PVC blending resin 2 ~ 5%, weighting agent 15 ~ 30%, softening agent 25 ~ 40%, dispersion agent 4 ~ 8%, tackifier 1 ~ 15%, moisture adsorbent 2 ~ 10%, microballoon whipping agent 0.4-0.8%, stablizer 1 ~ 5%.
3. a kind of heat embrittlement expansion type primary coat glue as claimed in claim 1 or 2, is characterized in that: described weighting agent is without coating coarse whiting and/or coating coarse whiting.
4. a kind of heat embrittlement expansion type primary coat glue as claimed in claim 1 or 2, is characterized in that: described moisture adsorbent is without coating oxidation calcium.
5. a kind of heat embrittlement expansion type primary coat glue as claimed in claim 1 or 2, is characterized in that: described dispersion agent is boiling point at the hydrocarbon polymer of 140 DEG C-310 DEG C.
6. a kind of heat embrittlement expansion type primary coat glue as claimed in claim 1 or 2, is characterized in that: described softening agent is dioctyl phthalate (DOP) or diisononyl phthalate.
7. a kind of heat embrittlement expansion type primary coat glue as claimed in claim 1 or 2, is characterized in that: described stablizer is zinc oxide or lead-containing compounds.
8. a preparation method for heat embrittlement expansion type primary coat glue, the steps include:
1) by formula rate according to claim 1, softening agent and dispersant is even, then all the other powder are added in mixing equipment; After powder all adds, mix to without particle; In whole process, control temperature must not higher than 40 DEG C;
2) step 1) products obtained therefrom is transplanted in stirring tank, and place and make product slaking in more than 8 hours;
3) slaking complete after mensuration product viscosity, add in addition softening agent adjustment product viscosity to requiring numerical value; Need after adding softening agent to stir, agitation condition is at every turn: stir environmental stress lower than-0.08MPa, churning time: 20 ± 5 minutes;
4), after viscosity reaches requirement, heat embrittlement expansion type primary coat glue is filtered to obtain through 60 ~ 80 mesh filter screens.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510514215.XA CN105038432A (en) | 2015-08-20 | 2015-08-20 | Thermosetting foamable primer and preparation method thereof |
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| CN201510514215.XA CN105038432A (en) | 2015-08-20 | 2015-08-20 | Thermosetting foamable primer and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505025A (en) * | 2015-12-21 | 2016-04-20 | 保定市金月美工贸有限公司 | Foaming type priming coat protective adhesive |
| CN107345119A (en) * | 2017-08-09 | 2017-11-14 | 盐城市宝光车用材料有限公司 | A kind of low-gravity weld joint sealant |
| CN107384051A (en) * | 2017-08-09 | 2017-11-24 | 盐城市宝光车用材料有限公司 | A kind of alveolitoid stone-impact-proof paint occurred frequently |
| CN107722740A (en) * | 2017-09-08 | 2018-02-23 | 张家港爱科思汽车配件有限公司 | A kind of automobile using foaming bottom gluing |
| CN107841266A (en) * | 2017-11-20 | 2018-03-27 | 依多科（常熟）汽车材料有限公司 | A kind of automobile using low-density fluid sealant and preparation method thereof |
| CN108949064A (en) * | 2017-05-27 | 2018-12-07 | 辽宁天宇胶业有限公司 | A kind of high foaming rate automobile PVC foam primary coat glue and preparation method thereof |
| CN109722919A (en) * | 2018-11-23 | 2019-05-07 | 佛山市稳格家居用品有限公司 | Foam process is scraped in the starching painting of a kind of polyvinyl chloride pulp and slurry |
| CN110903784A (en) * | 2019-11-21 | 2020-03-24 | 保光(天津)汽车零部件有限公司 | Low-temperature curing type high-foaming-ratio primer for automobiles and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181106A (en) * | 2011-03-23 | 2011-09-14 | 张家港西一新型汽车配件有限公司 | Thermosetting moisture-resistant welding seam sealant |
| CN102516900A (en) * | 2011-12-02 | 2012-06-27 | 湖北回天胶业股份有限公司 | Expanding damping adhesive with good oil surface adhesive performance and preparation method thereof |
-
2015
- 2015-08-20 CN CN201510514215.XA patent/CN105038432A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181106A (en) * | 2011-03-23 | 2011-09-14 | 张家港西一新型汽车配件有限公司 | Thermosetting moisture-resistant welding seam sealant |
| CN102516900A (en) * | 2011-12-02 | 2012-06-27 | 湖北回天胶业股份有限公司 | Expanding damping adhesive with good oil surface adhesive performance and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505025A (en) * | 2015-12-21 | 2016-04-20 | 保定市金月美工贸有限公司 | Foaming type priming coat protective adhesive |
| CN108949064A (en) * | 2017-05-27 | 2018-12-07 | 辽宁天宇胶业有限公司 | A kind of high foaming rate automobile PVC foam primary coat glue and preparation method thereof |
| CN107345119A (en) * | 2017-08-09 | 2017-11-14 | 盐城市宝光车用材料有限公司 | A kind of low-gravity weld joint sealant |
| CN107384051A (en) * | 2017-08-09 | 2017-11-24 | 盐城市宝光车用材料有限公司 | A kind of alveolitoid stone-impact-proof paint occurred frequently |
| CN107722740A (en) * | 2017-09-08 | 2018-02-23 | 张家港爱科思汽车配件有限公司 | A kind of automobile using foaming bottom gluing |
| CN107841266A (en) * | 2017-11-20 | 2018-03-27 | 依多科（常熟）汽车材料有限公司 | A kind of automobile using low-density fluid sealant and preparation method thereof |
| CN109722919A (en) * | 2018-11-23 | 2019-05-07 | 佛山市稳格家居用品有限公司 | Foam process is scraped in the starching painting of a kind of polyvinyl chloride pulp and slurry |
| CN110903784A (en) * | 2019-11-21 | 2020-03-24 | 保光(天津)汽车零部件有限公司 | Low-temperature curing type high-foaming-ratio primer for automobiles and preparation method thereof |
| CN110903784B (en) * | 2019-11-21 | 2021-07-20 | 保光(天津)汽车零部件有限公司 | Low-temperature curing type high-foaming-ratio primer for automobiles and preparation method thereof |
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