CN102775687B - Sponge adhesive tape jointed on corners of doors and windows of car, and preparation method thereof - Google Patents
Sponge adhesive tape jointed on corners of doors and windows of car, and preparation method thereof Download PDFInfo
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- CN102775687B CN102775687B CN201210265590.1A CN201210265590A CN102775687B CN 102775687 B CN102775687 B CN 102775687B CN 201210265590 A CN201210265590 A CN 201210265590A CN 102775687 B CN102775687 B CN 102775687B
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Abstract
The invention relates to a sponge adhesive tape jointed on corners of doors and windows of cars and a preparation method of the sponge adhesive tape, and is used for solving the problems that the sponge adhesive tape jointed on corners of doors and windows of cars is weak in stiffness, low in strength and is likely to deform after being stored for a long time. The sponge adhesive tape is prepared by the following components in percentage by weight: 100 parts of ethylene propylene diene monomer, 3-8 parts of zinc oxide, 1 part of steatic acid, 1-3 parts of dispersing agent L-24, 3-8 parts of sulfur ointment, 3-5 parts of polyethylene glycol, 50-80 parts of SRF (semi-reinforcing furnace) level carbon black SP5000, 50-80 parts of paraffin oil, 3-6 parts of composite foaming agent S-537, 3-6 parts of foaming agent AC, 0.5-3 parts of urea foaming assistant K4-P, 0.5-2 parts of sulfur, and 2-4 parts of accelerating agent. With the adoption of the product, the unit strength of the product is reduced, the tightness and touch feeling are enhanced, the strength and stiffness are improved, and meanwhile, the deformation resistance of long-term storage is ensured.
Description
Technical field
The present invention relates to a kind of rubber item, particularly position, automobile door and window turning joint packing adhesive tape and preparation method, belong to automobile technical field.
Background technology
Automobile door and window sealing strip major function is sealing, damping and decoration function.Because of the otherness of vehicle body different sites sheet metal structural, cause automobile door and window sealing strip section different, material structure is changeable, and different section material bonding is got up by position, automobile door and window turning joint glue bar exactly, form complete door and window sealing strip for normal assembling, finally realize the functional of sealed strip, reach and prevent outside wind, the objectionable impurities such as rain and dust invades in car, reduce automobile door under steam, the vibration that the positions such as window produce, keep the riding comfort in car and spatter property, and the Working environment of sealing position device is improved, working life is extended.The two kinds of technology preparations of position, existing automobile door and window turning joint glue strip adoption, one is the closely knit adhesive tape of soft; Another kind is sponge adhesive tape.Wherein, the sense of touch of the closely knit adhesive tape of soft own is hard, poor fluidity, quality weight, and when closing of the door, buffering effect is poor, and door closing force is large, easily occurs the defect of the bad orders such as drift angle, offset and scar in actual production process.Under identical processing condition, closely knit glue unit intensity is 1.180g/cm
3left and right.And existing sponge sizing material in the industry, although buffering effect during closing of the door can be improved, reduce door closing force, in order to ensure mobility and foamed state, a large amount of tenderizers is added in formula, yielding after causing the finished product property the endured difference after joint, low strength, long-time placement.
Summary of the invention
The present invention providing one obviously can reduce product unit intensity for overcoming the defect of prior art, improving intensity and sense of touch, and long-time use position, on-deformable automobile door and window turning gelatin sponge bar and preparation method thereof.
Problem alleged by the present invention is solved by following technical scheme:
The sponge adhesive tape that position, a kind of automobile door and window turning engages, its special feature is: described sponge adhesive tape is prepared from by the raw material of following mass parts: terpolymer EP rubber 100 parts, 3 ~ 8 parts, zinc oxide, stearic acid 1 part, dispersion agent L-24 1 ~ 3 part, sulphur ointment 3 ~ 8 parts, polyoxyethylene glycol 3 ~ 5 parts, SRF level carbon black SP5000 50 ~ 80 parts, paraffin oil 50 ~ 80 parts, complex class whipping agent S-537 3 ~ 6 parts, blowing agent AC 3 ~ 6 parts, urea class frothing aid K4-P 0.5 ~ 3 part, 0.5 ~ 2 part, sulphur, promotor 2 ~ 4 parts.
The sponge adhesive tape that position, above-mentioned automobile door and window turning engages, described promotor is made up of the material of following mass parts: accelerant B Z 0.5 ~ 1.5 part, captax 0.5 ~ 1.5 part, accelerant CZ 0.1 ~ 0.8 part, accelerant N a-22 0.1 ~ 0.8 part, vulkacit D TDM-80 0.1 ~ 0.8 part.
A kind of method preparing the sponge adhesive tape that position, above-mentioned automobile door and window turning engages, it comprise batching, mixing, open refining, slice, cool, park operation, first terpolymer EP rubber, zinc oxide, stearic acid, dispersion agent, sulphur ointment, polyoxyethylene glycol, carbon black and paraffin oil carry out mixing by described compounding procedure in upper auxiliary system, dump temperature is 130 ~ 140 DEG C, mixing time is 10 ~ 20min, storage period >=8h; Then gained mixture is carried out two-stage mixing in 75L Banbury mixer, thin-pass 5 times, clot 5 times in 22 cun of mills, park 4h and namely obtain described sponge adhesive tape.
The present invention is directed to position, the existing automobile door and window turning gelatin sponge bar product property endured difference, intensity is low, after long-time placement, yielding problem is improved, through research trial repeatedly, abandoning tradition technology adopts high Mooney viscosity rubber to fill the proportioning raw materials of a large amount of paraffin oil, meeting under product function prerequisite, select the rubber of low mooney viscosity height ethylene content, coordinate whipping agent, vulcanizing agent, promotor, the use of the batching such as strengthening agent, in reduction product unit intensity, while improving stopping property and sense of touch, improve the intensity of sponge adhesive tape and endure property, ensure that the deformation resistance of its long-term storage.Product of the present invention is compared with the closely knit adhesive tape of soft, and density reduces about 50%, and compared with existing sponge adhesive tape, tensile strength brings up to 1.85MP by 1.55MP; Tear strength brings up to 11.47KN/M by 9.10KN/M.
Embodiment
Terpolymer EP rubber in the present invention has good weathering resistance, physical and mechanical properties and processing characteristics, is the main glue kind of producing latex foam products at present.Because of the singularity of mold filling method gelatin sponge technique, require that sizing material is full of die cavity when being still melt state, namely need sizing material to have good mobility.Traditional technology adopts high Mooney viscosity rubber [the such as chemical K4903 of bright Sheng, ML(1+8), 150 DEG C: 60] (note: mooney viscosity is the quality of reflection Rubber processing performance and the variable of molecular weight height and distribution range width) fills a large amount of paraffin oil, to achieve the above object, but the sex change after easily causing goods short-term to park.The present invention provides optimization of C/C composites through research trial repeatedly, and namely this formula ensures the mobility that rubber unvulcanizate is good to ensure enough bulk strength again, and when enabling foaming agent foam, gas rests in the middle of colloid.Low mooney viscosity rubber [Mitsui Chemicals X4010 is selected in formula, ML(1+4), 100 DEG C: 8], meanwhile, in formula, use olefin elastomer rubber [Mitsui Chemicals K9720B, the MFR(190 DEG C of high ethylene content, 2.16KG): 2.0, ethylene content is 77%], improve the very property of goods, ensure the deformation resistance of its long-term storage.And auxiliary universal low mooney viscosity rubber [bright and beautiful lake chemical KEP435, ML(1+4), 125 DEG C: 33], three kinds of rubber ratio X4010:K9720B:KEP435=60:17:23.
Sulphur ointment described in the present invention is that fatty oil also adds mineral oil with sulfur bridge, wherein containing free sulphur 2.0% ~ 3.0%, improves venting quality and uniform in foaming, and increase sizing material rebound resilience, tensile strength and compression set performance etc. in formula.
Sulphur described in the present invention is SULPHUR POWDER, its purity >=99%, is mixed into rubber and can makes to produce between rubber molecule after heating to be cross-linked, form tridimensional network, make sizing material have corresponding physicals as vulcanizing agent.
Zinc oxide described in the present invention, stearic acid and polyoxyethylene glycol, as promoting agent, form zinc salt in formula, cure activation system, improve cross-linking density and the ageing-resistant performance of cross-linked rubber.
SRF level carbon black SP5000 described in the present invention is high structure, (viscosity of rubber unvulcanizate raises LR low reinforcing carbon black, causes the difficulty of low density for iodine absorption value: 27 ± 4, oil-absorption(number): 120 ± 6) select this carbon black to avoid increasing along with consumption.
Urea class frothing aid K4-P, complex class whipping agent S-537 and blowing agent AC described in the present invention is the foaming system in formula, the hierarchical temperature of complex class whipping agent S-537 and blowing agent AC is reduced by adding frothing aid, improve its decomposition rate, to adapt to actual curing temperature and time.By complex class whipping agent S-537 and blowing agent AC and use, make the over-all properties of whipping agent press close to processing requirement, control the rate of expansion under actual curing temperature.
For gelatin sponge, there is not the problem of foaming in mold filling legal system, only have the formation of the decomposition of whipping agent, polymkeric substance/aeresols system and complex before die sinking.The problem that abscess is grown up (foaming), sponge is shaping is just had after die sinking.Therefore there is not the problem that expansion rate and vulcanization rate match, as long as ensure that sizing material whipping agent before plateau cure decomposes completely.Expansion density can control by regulating the mooney viscosity of sizing material and the consumption of whipping agent, the present invention is by using low mooney viscosity rubber [Mitsui Chemicals X4010, ML(1+4), 100 DEG C: 8], the carbon black of LR low reinforcing, high structure and paraffin oil control sizing material mooney viscosity at ML(1+4), 125 DEG C: about 9.If cross-linked rubber much higher hard or cross-linking density too high (high-modulus), foaming agent consumption are too small, sponge foaming effect all can be caused bad, and goods harden.Meanwhile, require that whipping agent decomposes complete at sizing material heat-vulcanized commitment substantially, be full of die cavity when making sizing material be still melt state, sizing material has suitable time of scorch (time of scorch is long is more easily full of die cavity, but surface easily forms holes).This technology adopt urea class frothing aid K4-P, complex class whipping agent S-537 and blowing agent AC three kinds of foam materials with the use of, enough gas forming amounts can be ensured and work the time of sending out.Vulcanization system employing is vulcanizing agent with Sulfur and is equipped with the SE curing system of accelerator combination, ensures enough time of scorch and sulfurizing time.
In order to obtain the rubber sponge of soft-touch, the present invention, while the mooney viscosity reducing sizing material, adopts lower cross-linked rubber hardness (when not adding whipping agent), reduces cross-linking density, improves expansion density.Adopt the SRF type furnace treated black SP5000 of medium reinforcing property, come as the strengthening agent of terpolymer EP rubber, on the basis of proof strength and foaming, control the consumption of paraffin oil.
Product density of the present invention is little, lightweight, and compared with the closely knit adhesive tape density of soft, correlation data is as follows:
| Product density of the present invention | The closely knit adhesive tape density of soft |
| 0.650g/cm 3 | 1.180g/cm 3 |
Product strength of the present invention is high, very act charitably, and compared with existing sponge adhesive tape, correlation data is as follows:
| Classification | Tensile strength (MPa) | Tear strength (KN/m) |
| Product of the present invention | 1.85 | 11.47 |
| Existing sponge adhesive tape product | 1.55 | 9.10 |
Below provide several proportioning raw materials embodiment of the present invention:
Embodiment 1, raw material is taken: terpolymer EP rubber 100 parts according to following mass parts, 3 parts, zinc oxide, stearic acid 1 part, dispersion agent L-24 2 parts, sulphur ointment 5 parts, polyoxyethylene glycol 3 parts, SRF level carbon black SP5000 50 parts, paraffin oil 50 parts, complex class whipping agent S-537 4 parts, blowing agent AC 3 parts, urea class frothing aid K4-P 3 parts, 0.5 part, sulphur, accelerant B Z 0.5 part, captax 0.5 part, accelerant CZ 0.1 part, accelerant N a-22 0.8 part, vulkacit D TDM-80 0.1 part.
Embodiment 2, raw material is taken: terpolymer EP rubber 100 parts according to following mass parts, 8 parts, zinc oxide, stearic acid 1 part, dispersion agent L-24 1 part, sulphur ointment 8 parts, polyoxyethylene glycol 4 parts, SRF level carbon black SP5000 70 parts, paraffin oil 80 parts, complex class whipping agent S-537 6 parts, blowing agent AC 5 parts, urea class frothing aid K4-P 1 part, 1 part, sulphur, accelerant B Z 1.5 parts, captax 0.7 part, accelerant CZ 0.8 part, accelerant N a-22 0.5 part, vulkacit D TDM-80 0.5 part.
Embodiment 3, raw material is taken: terpolymer EP rubber 100 parts according to following mass parts, 5 parts, zinc oxide, stearic acid 1 part, dispersion agent L-24 3 parts, sulphur ointment 3 parts, polyoxyethylene glycol 5 parts, SRF level carbon black SP5000 80 parts, paraffin oil 60 parts, complex class whipping agent S-537 3 parts, blowing agent AC 6 parts, urea class frothing aid K4-P 0.5 part, 2 parts, sulphur, accelerant B Z 1 part, captax 1.5 parts, accelerant CZ 0.3 part, accelerant N a-22 0.1 part, vulkacit D TDM-80 0.8 part.
Embodiment 4, raw material is taken: terpolymer EP rubber 100 parts according to following mass parts, 7 parts, zinc oxide, stearic acid 1 part, dispersion agent L-24 2.5 parts, sulphur ointment 4 parts, polyoxyethylene glycol 4 parts, SRF level carbon black SP5000 65 parts, paraffin oil 55 parts, complex class whipping agent S-537 4 parts, blowing agent AC 4 parts, urea class frothing aid K4-P 1 part, 2 parts, sulphur, accelerant B Z 1 part, captax 1 part, accelerant CZ 0.5 part, accelerant N a-22 0.5 part, vulkacit D TDM-80 0.8 part.
Embodiment 5, raw material is taken: terpolymer EP rubber 100 parts according to following mass parts, 4 parts, zinc oxide, stearic acid 1 part, dispersion agent L-24 2 parts, sulphur ointment 6 parts, polyoxyethylene glycol 3.5 parts, SRF level carbon black SP5000 75 parts, paraffin oil 75 parts, complex class whipping agent S-537 5.5 parts, blowing agent AC 5 parts, urea class frothing aid K4-P 1.5 parts, 0.8 part, sulphur, accelerant B Z 1.2 parts, captax 0.8 part, accelerant CZ 0.4 part, accelerant N a-22 0.3 part, vulkacit D TDM-80 0.8 part.
The preparation method of product of the present invention is as follows:
Batching, mixing, open refining, slice, cool, the operation such as to park, it is characterized in that: first the terpolymer EP rubber, zinc oxide, stearic acid, dispersion agent, sulphur ointment, polyoxyethylene glycol, carbon black and the paraffin oil that use in invention carry out mixing by described compounding procedure in upper auxiliary system, dump temperature is 130 ~ 140 DEG C, mixing time is about 10 ~ 20min, storage period >=8h; Then gained mixture is carried out two-stage mixing in 75L Banbury mixer, in 22 cun of mills, thin-pass 5 times, clot 5 times, normally use after parking 4h.Described Banbury mixer and mill adopt Banbury mixer and the mill of conventional use.
Claims (3)
1. the sponge adhesive tape of position, automobile door and window turning joint, it is characterized in that: described sponge adhesive tape is prepared from by the raw material of following mass parts: terpolymer EP rubber 100 parts, 3 ~ 8 parts, zinc oxide, stearic acid 1 part, dispersion agent L-24 1 ~ 3 part, sulphur ointment 3 ~ 8 parts, polyoxyethylene glycol 3 ~ 5 parts, SRF level carbon black SP5000 50 ~ 80 parts, paraffin oil 50 ~ 80 parts, complex class whipping agent S-537 3 ~ 6 parts, blowing agent AC 3 ~ 6 parts, urea class frothing aid K4-P 0.5 ~ 3 part, 0.5 ~ 2 part, sulphur, promotor 2 ~ 4 parts;
Low mooney viscosity rubber Mitsui Chemicals X4010, olefin elastomer rubber Mitsui Chemicals K9720B and low mooney viscosity rubber brocade lake chemistry KEP435 is selected to do raw material, three kinds of rubber ratio X4010:K9720B:KEP435=60:17:23 in described formula of ethylene propylene terpolymer with.
2. the sponge adhesive tape of position, automobile door and window turning according to claim 1 joint, it is characterized in that: described promotor is made up of the material of following mass parts: accelerant B Z 0.5 ~ 1.5 part, captax 0.5 ~ 1.5 part, accelerant CZ 0.1 ~ 0.8 part, accelerant N a-22 0.1 ~ 0.8 part, vulkacit D TDM-80 0.1 ~ 0.8 part.
3. prepare the method for sponge adhesive tape that position, automobile door and window turning as claimed in claim 1 or 2 engages, it is characterized in that: it comprise batching, mixing, open refining, slice, cool, park operation; First the raw material used in formula carries out mixing by described compounding procedure in upper auxiliary system, and dump temperature is 130 ~ 140 DEG C, and mixing time is 10 ~ 20min, storage period >=8h; Then gained mixture is carried out two-stage mixing in 75L Banbury mixer, thin-pass 5 times, clot 5 times in 22 cun of mills, park 4h and namely obtain described sponge adhesive tape.
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| CN201210265590.1A CN102775687B (en) | 2012-07-30 | 2012-07-30 | Sponge adhesive tape jointed on corners of doors and windows of car, and preparation method thereof |
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| CN201210265590.1A CN102775687B (en) | 2012-07-30 | 2012-07-30 | Sponge adhesive tape jointed on corners of doors and windows of car, and preparation method thereof |
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| CN102775687B true CN102775687B (en) | 2015-03-11 |
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| CN103724830A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Coated rubber material for automobile door frame sealing strip |
| CN104861314B (en) * | 2015-06-12 | 2017-05-24 | 衡水中铁建工程橡胶有限责任公司 | Microporous rubber base plate and preparation process thereof |
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| CN105482271A (en) * | 2015-12-23 | 2016-04-13 | 芜湖馨源海绵有限公司 | Environment-friendly sponge sealing adhesive tape for car windows |
| CN107434886A (en) * | 2016-05-26 | 2017-12-05 | 中国兵器工业集团第五三研究所 | A kind of ethylene propylene diene rubber foaming materials and forming method |
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| CN114015166A (en) * | 2021-11-11 | 2022-02-08 | 台州市东电橡塑有限公司 | EPDM rubber foaming material and application |
| CN115197502A (en) * | 2022-09-14 | 2022-10-18 | 诺博橡胶制品有限公司 | Micro-hair-hole glass wool groove sizing material and preparation thereof, and vehicle sealing strip and preparation thereof |
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Effective date of registration: 20181228 Address after: 072550 Chaoyang North Street (Xu) 299, Xushui District, Baoding City, Hebei Province Patentee after: Baoding Norbo Auto Parts Co., Ltd. Address before: No. 2266 Chaoyang South Street, Baoding City, Hebei Province, 071000 Patentee before: Changcheng Automobile Co., Ltd. |
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Address after: 072550 Chaoyang North Street (Xu) 299, Xushui District, Baoding City, Hebei Province Patentee after: Nuo Bo rubber Co., Ltd Address before: 072550 Chaoyang North Street (Xu) 299, Xushui District, Baoding City, Hebei Province Patentee before: Baoding Norbo Auto Parts Co., Ltd. |
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