CN103435914A - Joint glue for corner part of sealing strip for car door and preparation method - Google Patents
Joint glue for corner part of sealing strip for car door and preparation method Download PDFInfo
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- CN103435914A CN103435914A CN2013103245858A CN201310324585A CN103435914A CN 103435914 A CN103435914 A CN 103435914A CN 2013103245858 A CN2013103245858 A CN 2013103245858A CN 201310324585 A CN201310324585 A CN 201310324585A CN 103435914 A CN103435914 A CN 103435914A
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Abstract
The invention discloses joint glue for a corner part of a sealing strip for a car door and a preparation method. The joint glue adopts the technical scheme that the joint glue is prepared by the following materials in parts by mass: 100-160 parts of ethylene propylene diene terpolymer rubber K4869, 20-50 parts of ethylene propylene diene terpolymer rubber 4045M, 3-8 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of dispersant L-24, 2-5 parts of polyethylene glycol, 60-100 parts of FEF (Fast Extruding Furnace) level carbon black N550, 20-80 parts of light calcium carbonate, 40-70 parts of paraffin oil, 3-8 parts of moisture absorbent, 0.1-0.5 parts of anti-scorching agent, 0.8-1.6 parts of sulfur and 1.7-4.7 parts of accelerant. The mooney viscosity of the joint glue is increased to be 16; the tensile strength is improved to be 12.3MPa; a shearing force during mixing is increased obviously; the dispersity of a packing is improved; skidding during the mixing of the glue is precluded; and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of rubber item, joint sizing material and preparation method that particularly position, car door sealing strip turning is used.
Background technology
Car door sealing strip is mainly used in the position, gap that the door, window, hatchcover of automobile etc. needs sealing, except playing sealing function, prevent inside and outside the objectionable impuritiess intrusion cars such as outside dust storm, rainwater and dust, can also play damping, sound insulation and decoration function, with the working life of raising trolley part and the riding comfort of automobile.Otherness because of body of a motor car panel beating different sites structure, cause the section structure material of weather strip for automobile different sites changeable, the particularly activity of automobile door and window and fixed position, and corner, bending and the different sites such as straight, in order to reach the assembling effect, need to use engage sizing material by the different section material through the hot sulfurization complete sealed strip of composition that bonds, for normal assembling, and finally realize the function of sealed strip.Position, existing car door sealing strip turning, with engaging sizing material, adopts the closely knit glue of soft to be engaged.Buffering effect and door closing force when guaranteeing closing of the door, the hardness of sizing material need to be controlled between 35～40 degree, and in order to reach the requirement of such soft, need to fill a large amount of paraffin oils in existing sizing compound formula, but a large amount of filled stone wax oil can cause, rubber strength is low, physical and mechanical properties is poor; And when mixing because adding in a large number paraffin oil skidding to occur, make the mixing process time extend to 10 minutes; Low compound viscosity reduces shear-stress when mixing in addition, and filler grain is difficult to disperse, and while affect the dispersiveness of sizing material and molded vulcanization, low pressure in die cavity, make gas be difficult to discharge, affects the compactness of product, and the defect such as occur choking with resentment.
Summary of the invention
The present invention provides a kind of for overcoming the defect of prior art can obviously improve the mooney viscosity of sizing material, occur when improving the dispersed of filler and stopping rubber compounding that the position, car door sealing strip turning of skidding is with engaging sizing material and preparation method.
The alleged problem of the present invention is solved by following technical scheme:
Position, a kind of car door sealing strip turning is with engaging sizing material, its special feature is: described formulated by the material of following mass parts in conjunction with sizing material: terpolymer EP rubber K4869:100～160 part, terpolymer EP rubber 4045M:20～50 part, zinc oxide: 3～8 parts, stearic acid: 1～3 part, dispersion agent L-24:1～3 part, polyoxyethylene glycol: 2～5 parts, FEF level carbon black N550:60～100 parts, light calcium carbonate: 20～80 parts, paraffin oil: 40～70 parts, moisture adsorbent: 3～8 parts, scorch retarder: 0.1～0.5 part, sulphur: 0.8～1.6 part, promotor: 1.7～4.7 parts.
Position, above-mentioned car door sealing strip turning is with engaging sizing material, described promotor is comprised of the material of following mass parts: accelerant B Z:0.8～1.6 part, captax: 0.5～1.5 part, accelerant N a-22:0.2～0.8 part, vulkacit D TDM:0.2～0.8 part.
Position, above-mentioned car door sealing strip turning is with engaging sizing material, and described scorch retarder is anti-scorching agent CTP, and described paraffin oil is the 300# paraffin oil, and described moisture adsorbent is moisture adsorbent GR.
Position, above-mentioned car door sealing strip turning joint glue preparation method for material, it comprise the weighing operation, once mixing operation, the mixing operation of secondary, shaping operation, engage operation, the mixing time of described once mixing operation is controlled at 360 s ± 10s.
Position, above-mentioned car door sealing strip turning joint glue preparation method for material, the described junction temperature in conjunction with operation is 165 ℃ ± 10 ℃, engaging time is 90s ± 10s.
The present invention is directed to position, general-utility car door weather strip turning low with engaging rubber strength, the problem that occurs when mixing skidding etc. is improved by the proportioning raw materials and the preparation method that engage sizing material position, car door sealing strip turning, kind and proportioning through the selected rubber of research trial repeatedly, reduce the paraffin oil consumption, suitably increase amount of filler, and by each component of optimum combination vulcanization system, guarantee sizing material processing stability, reduced the detrimentally affect that material moisture docking symphysis is produced, in the situation that coordinate moisture adsorbent GR to exist, owe sulphur, under the state of over cure, all not there will be the bloom phenomenon.Test shows, the mooney viscosity of joint sizing material of the present invention is increased to 16(testing conditions ML(1+4 by 10 of common sizing material), 125 ℃), tensile strength is increased to 12.3MPa by 6.3MPa, and obviously improved shearing force when mixing, the problem of skidding occurs when improving the dispersed of filler and stopping rubber compounding, significantly shortened mixing activity time and, in conjunction with activity time, improved production efficiency.
Embodiment
Position, car door sealing strip of the present invention turning is analyzed as follows with the recipe principle that engages sizing material:
One, rubber: prior art sizing material rubber adopts oil extended EPDM 3072EM and low mooney viscosity, low the 3rd monomer terpolymer EP rubber KEP210 and uses, this rubber collocation, cause low sizing consumption and high paraffin oil consumption on integral formulation, cause that rubber compounding skids, mixing time grows to 600s, because of the 3rd monomer content, limit, the vulcanization rate of sizing material is slower.The main raw material rubber of product of the present invention is selected the rubber of high molecular, to accept a large amount of filled stone wax oils, thereby obtains high sizing material mooney viscosity and intensity, improves the processing characteristics of sizing material and the physical and mechanical properties of cross-linked rubber.Simultaneously, cause mixing difficulty for fear of more interpolation paraffin oil, use oil-filled rubber that the rubber of these high Mooney viscosities is at first effectively softened, the calendering process improved performance, and the supra polymer of rubber itself quantizes to make again it in cooperation during a large amount of the oiling, the viscosity of sizing material and intensity are unlikely to reduce excessively, thereby have guaranteed the process industrial art performance that sizing material is essential.Select suitable oil-filled rubber, even adopt the filler of LR low reinforcing also can obtain higher rubber strength, can reduce when mixing the problem that adds a large amount of paraffin oils to bring, shorten the mixing process time, reduce production costs.But, in practice, find to use the rubber of the single trade mark can cause the rubber mobility variation, because the use of paraffin oil can affect rubber vulcanization speed, therefore need in formula, be aided with the rubber of middle low mooney viscosity, high the 3rd monomer content, guarantee mobility and the sulfidization molding speed of sizing material.In sum, the preferred rubber trade mark of the present invention is the oil-filled 100PHR of oil extended EPDM K4869() 100～160 parts of terpolymer EP rubber 4045M(ML(1+4 with middle low mooney viscosity, high the 3rd monomer), 125 ℃: 45; 7.6%) 20～50 parts both be used in conjunction with, guarantee intensity own and the processing characteristics of sizing material, can guarantee again good mobility and vulcanization rate fast.
Two, filler: the soft sizing material, under the pressure of the particular requirement of tensile strength, anti tear, the aspect such as wear-resisting, needs to adopt the carbon black of medium reinforcement, rationally adds the carbon black of medium reinforcement when improving rubber strength, also can make sizing material have processing characteristics preferably.Therefore filler of the present invention be take medium reinforcement carbon black N550(60-100 part) as main, suitably improve the content of carbon black, on the basis that guarantees physicals, coordinate a certain amount of light calcium carbonate (20-80 part), the tensile strength of sizing material is obviously improved, tensile strength is increased to 12.3MPa by 6.3MPa, uses a small amount of white filler light calcium carbonate in the formula simultaneously, can guarantee newly to coordinate the cost of system not higher than prior art.
Three, paraffin oil: in order to reach the soft requirement of sizing material, in sizing material, the consumption of tenderizer is usually larger, and tenderizer of the present invention is selected the 300# paraffin oil that has better consistency with terpolymer EP rubber, to prevent oozing out of oil plant.Addition 40-70 part of paraffin oil in proportioning of the present invention, compare general consumption and reduce approximately 20%, so both guaranteed processing characteristics, stopped skidding in mixing process, again mixing time foreshortened to 360s.After the addition that has reduced paraffin oil, the oil-filled 100PHR of the oil-filled rubber terpolymer EP rubber of choice for use K4869(), guaranteed the soft of sizing material.
Four, vulcanization system: the soft sizing material need to be used the oil plant of volume, obvious to the diluting effect of vulcanization system, can reduce crosslinking degree and the efficiency of sizing material, so in sizing material, vulcanization system should suitably strengthen according to practical situation.The present invention adopts and take sulphur (0.8-1.6 part) as vulcanizing agent and be equipped with sulfur-donor vulkacit D TDM(0.2-0.8 part when selecting vulcanization system), be aided with accelerant B Z(0.8-1.6 part), captax (0.5-1.5 part), accelerant N a-22(0.2-0.8 part) the semi effcient vulcanization system.Simultaneously, coordinate and add anti-scorching agent CTP (0.1-0.5 part) and moisture adsorbent GR(3-8 part), to extend the processing stability of sizing material time of scorch, assurance sizing material, reduce the detrimentally affect that material moisture docking symphysis is produced.The preferably combination of above-mentioned vulcanization system, be outstanding improvement of the present invention, adopts this vulcanization system, in the situation that coordinate moisture adsorbent GR to exist, no matter owes under the state of sulphur, over cure, all not there will be the bloom phenomenon.
Position, car door sealing strip of the present invention turning is as follows with the process of preparing that engages sizing material:
Weighing--once mixingly--parks that----shaping--is parked--joint to secondary mixing (add vulcanizing agent and promotor) for the second time for the first time.
Be embodied in once mixing and engage operation with the ordinary method difference in each operation of above-mentioned technique.Wherein once in mixing operation the processing performance due to sizing material improve, stop skidding in mixing process, so mixing time is controlled at 360 s ± 10s.Engaging production process: junction temperature is 165 ℃ ± 10 ℃, engaging time is 90s ± 10s, and (180 ℃ of junction temperatures, engaging time 120s) reduced junction temperature, shortened engaging time compared to existing technology, improve production efficiency, reduced production cost.
Below provide several proportioning raw materials embodiment of the present invention:
Embodiment 1, take raw material according to following mass parts: the oil-filled 100PHR of terpolymer EP rubber K4869() 100 parts, 30 parts of terpolymer EP rubber 4045M, 3 parts, zinc oxide, 1 part of stearic acid, 1.5 parts of dispersion agent L-24,2.5 parts of polyoxyethylene glycol, 60 parts of FEF level carbon black N550,80 parts of light calcium carbonates, 40 parts of 300# paraffin oils, 0.8～1.6 part, sulphur, 3～8 parts of moisture adsorbent GR, 0.2 part of anti-scorching agent CTP, 1.2 parts of accelerant B Z, 0.5 part of captax, 0.8 part of accelerant N a-22,0.2 part of vulkacit D TDM.
Embodiment 2, take raw material according to following mass parts: the oil-filled 100PHR of terpolymer EP rubber K4869() 60 parts, 20 parts of terpolymer EP rubber 4045M, 5 parts, zinc oxide, 3 parts of stearic acid, 1 part of dispersion agent L-24,5 parts of polyoxyethylene glycol, 70 parts of FEF level carbon black N550,20 parts of light calcium carbonates, 45 parts of 300# paraffin oils, 0.8 part, sulphur, 4 parts of moisture adsorbent GR, 0.1 part of anti-scorching agent CTP, 1.0 parts of accelerant B Z, 0.7 part of captax, 0.2 part of accelerant N a-22,0.6 part of vulkacit D TDM.
Embodiment 3, take raw material according to following mass parts: the oil-filled 100PHR of terpolymer EP rubber K4869() 120 parts, 50 parts of terpolymer EP rubber 4045M, 8 parts, zinc oxide, 2 parts of stearic acid, 2 parts of dispersion agent L-24,3 parts of polyoxyethylene glycol, 80 parts of FEF level carbon black N550,60 parts of light calcium carbonates, 70 parts of 300# paraffin oils, 1.6 parts, sulphur, 3 parts of moisture adsorbent GR, 0.5 part of anti-scorching agent CTP, 1.6 parts of accelerant B Z, 1.2 parts of captaxs, 0.5 part of accelerant N a-22,0.3 part of vulkacit D TDM.
Embodiment 4, take raw material according to following mass parts: the oil-filled 100PHR of terpolymer EP rubber K4869() 150 parts, 40 parts of terpolymer EP rubber 4045M, 6 parts, zinc oxide, 2.5 parts of stearic acid, 3 parts of dispersion agent L-24,2 parts of polyoxyethylene glycol, 100 parts of FEF level carbon black N550, light calcium carbonate 20,60 parts of 300# paraffin oils, 1.2 parts, sulphur, 6 parts of moisture adsorbent GR, 0.3 part of anti-scorching agent CTP, 0.8 part of accelerant B Z, 1.5 parts of captaxs, 0.3 part of accelerant N a-22,0.5 part of vulkacit D TDM.
Embodiment 5, take raw material according to following mass parts: the oil-filled 100PHR of terpolymer EP rubber K4869() 130 parts, 35 parts of terpolymer EP rubber 4045M, 4 parts, zinc oxide, 1.5 parts of stearic acid, 2 parts of dispersion agent L-24,4.5 parts of polyoxyethylene glycol, 90 parts of FEF level carbon black N550,30 parts of light calcium carbonates, 50 parts of 300# paraffin oils, 1.5 parts, sulphur, 8 parts of moisture adsorbent GR, 0.4 part of anti-scorching agent CTP, 1.2 parts of accelerant B Z, 0.9 part of captax, 0.7 part of accelerant N a-22,0.8 part of vulkacit D TDM.
Position, car door sealing strip turning with engage sizing material and preparation method comprise weighing, once mixing, park for the first time, secondary mixing (adding vulcanizing agent and promotor), shaping, park for the second time, engage.Wherein once mixing operation mixing time is controlled at 360 s ± 10s, in conjunction with junction temperature in operation, is 165 ℃ ± 10 ℃, and engaging time is 90s ± 10s, and other operation is produced according to the common process parameter.
Claims (5)
1. position, a car door sealing strip turning is with engaging sizing material, it is characterized in that: described formulated by the material of following mass parts in conjunction with sizing material: terpolymer EP rubber K4869:100～160 part, terpolymer EP rubber 4045M:20～50 part, zinc oxide: 3～8 parts, stearic acid: 1～3 part, dispersion agent L-24:1～3 part, polyoxyethylene glycol: 2～5 parts, FEF level carbon black N550:60～100 parts, light calcium carbonate: 20～80 parts, paraffin oil: 40～70 parts, moisture adsorbent: 3～8 parts, scorch retarder: 0.1～0.5 part, sulphur: 0.8～1.6 part, promotor: 1.7～4.7 parts.
2. position, car door sealing strip according to claim 1 turning is with engaging sizing material, it is characterized in that: described promotor is comprised of the material of following mass parts: accelerant B Z:0.8～1.6 part, captax: 0.5～1.5 part, accelerant N a-22:0.2～0.8 part, vulkacit D TDM:0.2～0.8 part.
3. position, car door sealing strip according to claim 2 turning is with engaging sizing material, and it is characterized in that: described scorch retarder is anti-scorching agent CTP, and described paraffin oil is the 300# paraffin oil, and described moisture adsorbent is moisture adsorbent GR.
4.
a kind ofaccording to claim 1 or 2 or 3 position, described car door sealing strip turning joint glue preparation method for material, it comprise the weighing operation, once mixing operation, the mixing operation of secondary, shaping operation, engage operation, it is characterized in that: the mixing time of described once mixing operation is controlled at 360 s ± 10s.
5. position, car door sealing strip according to claim 4 turning joint glue preparation method for material, it is characterized in that: the described junction temperature in conjunction with operation is 165 ℃ ± 10 ℃, and engaging time is 90s ± 10s.
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| CN201310324585.8A CN103435914B (en) | 2013-07-30 | 2013-07-30 | Position, a kind of car door sealing strip turning is with engaging sizing material and preparation method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103709526A (en) * | 2013-12-12 | 2014-04-09 | 建新赵氏集团有限公司 | Rubber material capable of eliminating retentate on extrusion die |
| CN104387677A (en) * | 2014-11-05 | 2015-03-04 | 安徽龙川橡塑科技有限公司 | Anti-aging rubber |
| CN105504550A (en) * | 2016-01-22 | 2016-04-20 | 太仓冠联高分子材料有限公司 | Weather-proof environment-friendly rubber tube material with high stress at definite elongation and preparing method thereof |
| CN105504549A (en) * | 2016-01-22 | 2016-04-20 | 太仓冠联高分子材料有限公司 | Low-VOC and smell-free environmental-protection automobile sealing strip rubber and preparation method thereof |
| CN106243530A (en) * | 2016-09-14 | 2016-12-21 | 福州福启橡塑有限公司 | A kind of complete vehicle system sealing strip and preparation method thereof |
| CN106609005A (en) * | 2016-04-28 | 2017-05-03 | 保定威奕汽车有限公司 | Sealing strip butt-joint thin slice rubber material and preparation method thereof, and sealing strip butt-joint thin slice rubber sheet processing method and processing device |
| CN109370065A (en) * | 2018-10-15 | 2019-02-22 | 浙江仙通橡塑股份有限公司 | A kind of weather strip for automobile rubber compound of one-step method continuous mixing and preparation method thereof |
| CN111171464A (en) * | 2020-02-24 | 2020-05-19 | 天津中和胶业股份有限公司 | EPDM foamed car lamp sealing ring material and preparation method thereof |
| CN112409706A (en) * | 2020-12-01 | 2021-02-26 | 江苏冠联新材料科技股份有限公司 | Waterproof automotive sponge sealing strip sizing material |
| CN113754961A (en) * | 2021-08-26 | 2021-12-07 | 浙江韦氏电器有限公司 | Rubber compound, preparation method and application |
| CN114516989A (en) * | 2022-01-29 | 2022-05-20 | 江门市鑫辉密封科技有限公司 | EPDM halogen-free flame-retardant rubber and preparation method thereof |
| CN115386172A (en) * | 2022-09-23 | 2022-11-25 | 江西奋发科技有限公司 | High-performance low-compression-set ethylene propylene diene monomer sealing rubber strip |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103709526A (en) * | 2013-12-12 | 2014-04-09 | 建新赵氏集团有限公司 | Rubber material capable of eliminating retentate on extrusion die |
| CN104387677A (en) * | 2014-11-05 | 2015-03-04 | 安徽龙川橡塑科技有限公司 | Anti-aging rubber |
| CN105504550A (en) * | 2016-01-22 | 2016-04-20 | 太仓冠联高分子材料有限公司 | Weather-proof environment-friendly rubber tube material with high stress at definite elongation and preparing method thereof |
| CN105504549A (en) * | 2016-01-22 | 2016-04-20 | 太仓冠联高分子材料有限公司 | Low-VOC and smell-free environmental-protection automobile sealing strip rubber and preparation method thereof |
| CN106609005A (en) * | 2016-04-28 | 2017-05-03 | 保定威奕汽车有限公司 | Sealing strip butt-joint thin slice rubber material and preparation method thereof, and sealing strip butt-joint thin slice rubber sheet processing method and processing device |
| CN106243530A (en) * | 2016-09-14 | 2016-12-21 | 福州福启橡塑有限公司 | A kind of complete vehicle system sealing strip and preparation method thereof |
| CN109370065A (en) * | 2018-10-15 | 2019-02-22 | 浙江仙通橡塑股份有限公司 | A kind of weather strip for automobile rubber compound of one-step method continuous mixing and preparation method thereof |
| CN111171464A (en) * | 2020-02-24 | 2020-05-19 | 天津中和胶业股份有限公司 | EPDM foamed car lamp sealing ring material and preparation method thereof |
| CN112409706A (en) * | 2020-12-01 | 2021-02-26 | 江苏冠联新材料科技股份有限公司 | Waterproof automotive sponge sealing strip sizing material |
| CN113754961A (en) * | 2021-08-26 | 2021-12-07 | 浙江韦氏电器有限公司 | Rubber compound, preparation method and application |
| CN114516989A (en) * | 2022-01-29 | 2022-05-20 | 江门市鑫辉密封科技有限公司 | EPDM halogen-free flame-retardant rubber and preparation method thereof |
| CN114516989B (en) * | 2022-01-29 | 2023-09-15 | 江门市鑫辉密封科技有限公司 | EPDM halogen-free flame retardant rubber and preparation method thereof |
| CN115386172A (en) * | 2022-09-23 | 2022-11-25 | 江西奋发科技有限公司 | High-performance low-compression-set ethylene propylene diene monomer sealing rubber strip |
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