CN104194278A - Expanding rust-preventing spot welding structural sealant for car, and preparation method thereof - Google Patents
Expanding rust-preventing spot welding structural sealant for car, and preparation method thereof Download PDFInfo
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- CN104194278A CN104194278A CN201410503624.5A CN201410503624A CN104194278A CN 104194278 A CN104194278 A CN 104194278A CN 201410503624 A CN201410503624 A CN 201410503624A CN 104194278 A CN104194278 A CN 104194278A
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Abstract
The invention provides an expanding rust-preventing spot welding structural sealant for a car, and a preparation method thereof. The preparation method comprises the following steps: preparing 7-20 parts of master batch, 8 parts of aluminium hydroxide, 3 parts of calcium oxide and 3 parts of TXIB, kneading the prepared raw materials for 30 minutes on a kneader; adding in 6 parts of aluminium hydroxide, 5 parts of a rust inhibitor, 8 parts of conductive carbon black and 5 parts of TXIB for kneading for 15 minutes in the kneader to enable materials to be conglomerated; adding in 7 parts of nano-calcium, 3.5-10 parts of liquid butadiene, 3-25 parts of bisphenol F epoxy resin and 3 parts of TXIB for kneading for 25 minutes in the kneader; adding in 5 parts of coarse whiting, 0.3-0.5 part of DCP-40, 0.2-0.5 part of DM, 1-4 parts of superfine dicyandiamide and 3 parts of an ethenyl physical foaming agent for kneading for 20 minutes in the kneader; adding in 6-27.5 parts of acrylate mixed epoxy resin in the core-shell structure for kneading for 10 minutes in the kneader; adding in 1.5 parts of TXIB; reserving 1.5 parts of TXIB for adjusting viscosity. The structural sealant after curing is high in strength, good in tenacity and excellent in rust prevention.
Description
Technical field
The present invention relates to chemical technology field, relate in particular to antirust spot-welded structures seal gum of a kind of expanded polystyrene veneer automobile and preparation method thereof.
Background technology
Automobile is sealing, damping and dispersion solder joint stress around with spot welding glue Main Function, to reach the effect of dustproof, waterproof, anticorrosion, damping, thereby extend the work-ing life of automobile, it is mainly used on automotive welding production line, before Car Body Painting is processed, the component junction consisting of steel plate is coated with to antirust sealant for spot welding in advance, after superimposed, carry out again spot welding, then with vehicle body together after the treatment process such as degreasing, washing, phosphatization, electrophoresis, then together with electrocoating paint baking-curing.
On October 1st, 2013 rises, the < < of country automobile three guarantees regulation > > implements, to car load is anticorrosion, have higher requirement, wherein solder joint is anticorrosion, and on face of weld, two the anticorrosion of block plate overlapping part receive much concern, two faces of solder joint and steel plate overlap joint, before coating process, can not be sprayed paint by electrophoresis, before welding, smearing spot welding glue is best selection, therefore, the purposes of spot welding glue is very important.
At present, the use position of antirust spot-welded structures seal gum on automobile is that mud guard, vehicle body side and base plate, wheel cover, dashboard etc. are located, automobile uses spot welding glue for damping, need to there is good elasticity, general requirement Shao Shi C type hardness tester is between 20～50, in resin, added polyvinyl chloride (PVC) RESINS, although improved elasticity, but when decomposing, spot welding can discharge chloride toxic gas, polluted environment and operator's health formed to threat, and when baking temperature surpass 170 ℃ and can discharge hydrogen chloride gas and corrode steel plate; The antirust seal gum of expansion type has added chemical foaming agent in use, in foaming process mesoporosity and uniform in foaming degree, be difficult to control, the abscess moisture absorption after foaming, the preservative property of the antirust seal gum of expansion type have been reduced, but not the antirust seal gum of expansion type is difficult to solve the welding gap that mould and die accuracy problem is brought, how to make sealant for spot welding there is good elasticity, vibration resistance, stopping property, ageing-resistant performance to adapt to automobile environment in the wild, and when welding can not discharge harmful gas, and this is the problem that we need solution badly.
Summary of the invention
In order to overcome the problem of prior art, the invention provides antirust spot-welded structures seal gum of a kind of expanded polystyrene veneer automobile and preparation method thereof, effectively prevent that weld from leaking, getting rusty, good weatherability, pollution-free, pasta steel plate cementability is good, high elasticity after curing, and easy to operate, constructability.
Technical scheme of the present invention is: the antirust spot-welded structures seal gum of expanded polystyrene veneer automobile, and its parts by weight raw material composition is:
Described masterbatch is divided into two kinds, and its parts by weight raw material forms and preparation method is:
Masterbatch one parts by weight raw material forms:
20 parts of low molecule BR rubber
30 parts of SBR rubber
30 parts of TXIB
The preparation method of masterbatch one is:
By 20 parts of low molecule BR rubber, 30 parts of SBR rubber are put into Banbury mixer banburying 20 minutes, add again 20 parts of coarse whitings to banburying in Banbury mixer 30 minutes, then add TXIB30 part, divide and add for 3 times, each 10 parts, add interval 10 minutes at every turn, finally in Banbury mixer banburying after 30 minutes discharging standby.
Masterbatch two parts by weight raw materials form:
The preparation method of masterbatch two is:
By 30 parts of SBR rubber, 20 parts of bisphenol F epoxy resins are put into Banbury mixer banburying 20 minutes, add again 20 parts of coarse whitings to banburying in Banbury mixer 30 minutes, then add TXIB30 part, divide and add for 3 times, each 10 parts, add interval 10 minutes at every turn, finally in Banbury mixer banburying after 30 minutes discharging standby.
The antirust spot-welded structures seal gum of expanded polystyrene veneer automobile, its making method is: the masterbatch 7-20 part preparing, 8 parts, aluminium hydroxide, 3 parts, calcium oxide, 3 parts of TXIB mediate 30 minutes on kneader, then add 6 parts, aluminium hydroxide, 5 parts of rust-preventive agent, 8 parts of graphitized carbon blacks, 5 parts of TXIB mediate 15 minutes in kneader, material is united, then add 7 parts of Namigai, liquid divinyl 3.5-10 part, bisphenol F epoxy resin 3-25 part, 3 parts of TXIB mediate 25 minutes in kneader, then add 5 parts of coarse whitings, DCP-400.3-0.5 part, DM 0.2-0.5 part, ultra-fine Dyhard RU 100 1-4 part, 3 parts of vinyl pneumatogens are mediated 20 minutes in kneader, add nucleocapsid structure acrylate hybrid ring epoxy resins 6-27.5 part in kneader, to mediate 10 minutes, add again 1.5 parts of TXIB, adjust viscosity, finally reserve 1.5 parts of TXIB and adjust viscosity, vacuum 1 as a child can filter and package.
The invention has the beneficial effects as follows: select SBR synthetic rubber, along fourth BR900, liquid polybutadiene rubber, environment-friendly type softening agent, nucleocapsid structure acrylate hybrid ring epoxy resins, graphitized carbon black, rust-preventive agent, nm-class active calcium carbonate, aluminium hydroxide, whipping agent, the materials such as vulcanizing agent are through banburying, the operations such as kneading become uniform paste spot welding glue dispersion of materials, when between autobody sheet and steel plate, area is larger, can spray or brush with brush, easy to operate, make Automobile Welding position steel plate there is good preventing water leakage, the anti-performance of getting rusty, weather resistance is good, pollution-free, pasta steel plate cementability is good, high elasticity after curing, strengthened the anticorrosion of Automobile Welding point, rustless property, environmental pollution and the threat to operator ' s health have been reduced, and cured strength is high, good toughness, rust-preventing characteristic is excellent.
Embodiment
The antirust spot-welded structures seal gum of expanded polystyrene veneer automobile, its parts by weight raw material composition is:
Described masterbatch is divided into two kinds, and its parts by weight raw material forms and preparation method is:
Masterbatch one parts by weight raw material forms:
20 parts of low molecule BR rubber
30 parts of SBR rubber
30 parts of TXIB
The preparation method of masterbatch one is:
By 20 parts of low molecule BR rubber, 30 parts of SBR rubber are put into Banbury mixer banburying 20 minutes, add again 20 parts of coarse whitings to banburying in Banbury mixer 30 minutes, then add TXIB30 part, divide and add for 3 times, each 10 parts, add interval 10 minutes at every turn, finally in Banbury mixer banburying after 30 minutes discharging standby.
Masterbatch two parts by weight raw materials form:
The preparation method of masterbatch two is:
By 30 parts of SBR rubber, 20 parts of bisphenol F epoxy resins are put into Banbury mixer banburying 20 minutes, then
Add 20 parts of coarse whitings to banburying in Banbury mixer 30 minutes, then add TXIB30 part, minute add for 3 times
Enter, each 10 parts, add interval 10 minutes, finally banburying after 30 minutes in Banbury mixer at every turn
Discharging is standby.
The antirust spot-welded structures seal gum of expanded polystyrene veneer automobile, its making method is: the masterbatch 7-20 part preparing, 8 parts, aluminium hydroxide, 3 parts, calcium oxide, 3 parts of TXIB mediate 30 minutes on kneader, then add 6 parts, aluminium hydroxide, 5 parts of rust-preventive agent, 8 parts of graphitized carbon blacks, 5 parts of TXIB mediate 15 minutes in kneader, material is united, then add 7 parts of Namigai, liquid divinyl 3.5-10 part, bisphenol F epoxy resin 3-25 part, 3 parts of TXIB mediate 25 minutes in kneader, then add 5 parts of coarse whitings, DCP-400.3-0.5 part, DM 0.2-0.5 part, ultra-fine Dyhard RU 100 1-4 part, 3 parts of vinyl pneumatogens are mediated 20 minutes in kneader, add nucleocapsid structure acrylate hybrid ring epoxy resins 6-27.5 part in kneader, to mediate 10 minutes, add again 1.5 parts of TXIB, adjust viscosity, finally reserve 1.5 parts of TXIB and adjust viscosity, vacuum 1 as a child can filter and package.
Embodiment 1
The antirust spot-welded structures seal gum of expanded polystyrene veneer automobile, its making method is:
One 20 parts of the masterbatch preparing, 8 parts, aluminium hydroxide, 3 parts, calcium oxide, 3 parts of TXIB mediate 30 minutes on kneader, then add 6 parts, aluminium hydroxide, 5 parts of rust-preventive agent, 8 parts of graphitized carbon blacks, 5 parts of TXIB mediate 15 minutes in kneader, material is united, then add 7 parts of Namigai, 10 parts of liquid divinyl, 3 parts of bisphenol F epoxy resins, 3 parts of TXIB mediate 25 minutes in kneader, then add 5 parts of coarse whitings, DCP-400.5 part, 0.5 part of DM, 1 part of ultra-fine Dyhard RU 100, 3 parts of vinyl pneumatogens are mediated 20 minutes in kneader, add 6 parts of nucleocapsid structure acrylate hybrid ring epoxy resins in kneader, to mediate 10 minutes, add again 1.5 parts of TXIB, adjust viscosity, finally reserve 1.5 parts of TXIB and adjust viscosity, vacuum 1 as a child can filter and package.
Embodiment 2
The antirust spot-welded structures seal gum of expanded polystyrene veneer automobile, its making method is:
2 20 parts of the masterbatch preparing, 8 parts, aluminium hydroxide, 3 parts, calcium oxide, 3 parts of TXIB mediate 30 minutes on kneader, then add 6 parts, aluminium hydroxide, 5 parts of rust-preventive agent, 8 parts of graphitized carbon blacks, 5 parts of TXIB mediate 15 minutes in kneader, material is united, then add 7 parts of Namigai, 10 parts of liquid divinyl, 3 parts of bisphenol F epoxy resins, 3 parts of TXIB mediate 25 minutes in kneader, then add 5 parts of coarse whitings, DCP-400.5 part, 0.5 part of DM, 1 part of ultra-fine Dyhard RU 100, 3 parts of vinyl pneumatogens are mediated 20 minutes in kneader, add 6 parts of nucleocapsid structure acrylate hybrid ring epoxy resins in kneader, to mediate 10 minutes, add again 1.5 parts of TXIB, adjust viscosity, finally reserve 1.5 parts of TXIB and adjust viscosity, vacuum 1 as a child can filter and package.
Embodiment 3
The antirust spot-welded structures seal gum of expanded polystyrene veneer automobile, its making method is:
One 10 parts of the masterbatch preparing, 2 10 parts of masterbatch, 8 parts, aluminium hydroxide, 3 parts, calcium oxide, TXIB3 part is mediated 30 minutes on kneader, then add 6 parts, aluminium hydroxide, 5 parts of rust-preventive agent, 8 parts of graphitized carbon blacks, 5 parts of TXIB mediate 15 minutes in kneader, material is united, then add 7 parts of Namigai, 10 parts of liquid divinyl, 3 parts of bisphenol F epoxy resins, 3 parts of TXIB mediate 25 minutes in kneader, then add 5 parts of coarse whitings, DCP-400.5 part, 0.5 part of DM, 1 part of ultra-fine Dyhard RU 100, 3 parts of vinyl pneumatogens are mediated 20 minutes in kneader, add 6 parts of nucleocapsid structure acrylate hybrid ring epoxy resins in kneader, to mediate 10 minutes, add again 1.5 parts of TXIB, adjust viscosity, finally reserve 1.5 parts of TXIB and adjust viscosity, vacuum 1 as a child can filter and package.
Embodiment 4
The antirust spot-welded structures seal gum of expanded polystyrene veneer automobile, its making method is:
27 parts of the masterbatch preparing, 8 parts, aluminium hydroxide, 3 parts, calcium oxide, 3 parts of TXIB mediate 30 minutes on kneader, then add 6 parts, aluminium hydroxide, 5 parts of rust-preventive agent, 8 parts of graphitized carbon blacks, 5 parts of TXIB mediate 15 minutes in kneader, material is united, then add 7 parts of Namigai, 3.5 parts of liquid divinyl, 25 parts of bisphenol F epoxy resins are mediated 25 minutes in kneader, then add 5 parts of coarse whitings, DCP-400.3 part, 0.2 part of DM, 4 parts of ultra-fine Dyhard RU 100s, 0.5 part of vinyl pneumatogen is mediated 20 minutes in kneader, add 27.5 parts of nucleocapsid structure acrylate hybrid ring epoxy resins in kneader, to mediate 10 minutes, add again 0.5 part of TXIB, adjust viscosity, finally reserve 0.5 part of TXIB and adjust viscosity, vacuum 1 as a child can filter and package.
The antirust spot-welded structures seal gum of expanded polystyrene veneer automobile partial properties examining report
In embodiment 4, adopting bisphenol F epoxy resin is material of main part, can make the seal gum that a kind of viscosity pole is low, when the larger position of area is used, can use brush brush or spray to reach uniform scribble effect with pump, and cured strength is high, good toughness, rustless property are splendid.
The present invention adopts physical expansion whipping agent, can either expand and fill the welding gap of bringing due to mould and die accuracy problem, and after foaming, can't see obvious abscess, has further improved antiseptic property, coordinates rust-preventive agent to use together, has strengthened rustless property.
The present invention adopts TXIB environment-friendly plasticizer to reach the requirement of environmental protection.
The present invention has selected the good SBR synthetic rubber of weathering resistance, low molecule cis-butadiene cement, and liquid polybutadiene rubber, nucleocapsid structure acrylate hybrid ring epoxy resins makes the antirust spot-welded structures seal gum of expanded polystyrene veneer automobile have good weathering resistance and cohesive strength, further accomplishes antirust object.
The present invention selects SBR synthetic rubber, along fourth BR900, liquid polybutadiene rubber, environment-friendly type softening agent, nucleocapsid structure acrylate hybrid ring epoxy resins, graphitized carbon black, rust-preventive agent, nm-class active calcium carbonate, aluminium hydroxide, whipping agent, the materials such as vulcanizing agent are through banburying, the operations such as kneading become uniform paste spot welding glue dispersion of materials, when between autobody sheet and steel plate, area is larger, can spray or brush with brush, easy to operate, make Automobile Welding position steel plate there is good preventing water leakage, the anti-performance of getting rusty, weather resistance is good, pollution-free, pasta steel plate cementability is good, high elasticity after curing.
The present invention has selected the good SBR synthetic rubber of weathering resistance, low molecule cis-butadiene cement, and liquid polybutadiene rubber, nucleocapsid structure acrylate hybrid ring epoxy resins, while using on production line, the antirust spot-welded structures seal gum of expanded polystyrene veneer automobile is after Jiao Zui spues, adhesive tape expands, diameter is larger 50% than the outspoken footpath of glue, has guaranteed enough Amount of spread, guarantees not because artificial gluing speed is irregular, adhesive tape drawing-down, cause the problem of disconnected glue.
The above is embodiments of the invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.All any modifications of doing within the spirit and principles in the present invention, be equal within replacement, improvement etc. all should be contained in claim scope of the present invention.
Claims (3)
1. the antirust spot-welded structures seal gum of expanded polystyrene veneer automobile, its parts by weight raw material forms and is:
2. the antirust spot-welded structures seal gum of expanded polystyrene veneer automobile according to claim 1, is characterized in that: described masterbatch is divided into two kinds, and its parts by weight raw material forms and preparation method is:
Masterbatch one parts by weight raw material forms:
20 parts of low molecule BR rubber
30 parts of SBR rubber
30 parts of TXIB
The preparation method of masterbatch one is:
By 20 parts of low molecule BR rubber, 30 parts of SBR rubber are put into Banbury mixer banburying 20 minutes, then add 20 parts of coarse whitings to banburying in Banbury mixer 30 minutes, then add TXIB30 part, divide and add for 3 times, each 10 parts, add interval 10 minutes at every turn, finally in Banbury mixer banburying after 30 minutes discharging standby.
Masterbatch two parts by weight raw materials form:
The preparation method of masterbatch two is:
By 30 parts of SBR rubber, 20 parts of bisphenol F epoxy resins are put into Banbury mixer banburying 20 minutes, add again 20 parts of coarse whitings to banburying in Banbury mixer 30 minutes, then add TXIB30 part, divide and add for 3 times, each 10 parts, add interval 10 minutes at every turn, finally in Banbury mixer banburying after 30 minutes discharging standby.
3. the antirust spot-welded structures seal gum of expanded polystyrene veneer automobile according to claim 1, its making method is: the masterbatch 7-20 part preparing, 8 parts, aluminium hydroxide, 3 parts, calcium oxide, 3 parts of TXIB mediate 30 minutes on kneader, then add 6 parts, aluminium hydroxide, 5 parts of rust-preventive agent, 8 parts of graphitized carbon blacks, 5 parts of TXIB mediate 15 minutes in kneader, material is united, then add 7 parts of Namigai, liquid divinyl 3.5-10 part, bisphenol F epoxy resin 3-25 part, 3 parts of TXIB mediate 25 minutes in kneader, then add 5 parts of coarse whitings, DCP-400.3-0.5 part, DM 0.2-0.5 part, ultra-fine Dyhard RU 100 1-4 part, 3 parts of vinyl pneumatogens are mediated 20 minutes in kneader, add nucleocapsid structure acrylate hybrid ring epoxy resins 6-27.5 part in kneader, to mediate 10 minutes, add again 1.5 parts of TXIB, adjust viscosity, finally reserve 1.5 parts of TXIB and adjust viscosity, vacuum 1 as a child can filter and package.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410503624.5A CN104194278A (en) | 2014-09-26 | 2014-09-26 | Expanding rust-preventing spot welding structural sealant for car, and preparation method thereof |
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| CN201410503624.5A CN104194278A (en) | 2014-09-26 | 2014-09-26 | Expanding rust-preventing spot welding structural sealant for car, and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110643306A (en) * | 2018-06-12 | 2020-01-03 | 济南汉斯曼时代技术有限公司 | Special rubber type spot welding sealant for body-in-white and preparation method thereof |
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Application publication date: 20141210 |