CN106700274A - Rubber for sealing strip of automobile and preparation method of rubber - Google Patents
Rubber for sealing strip of automobile and preparation method of rubber Download PDFInfo
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- CN106700274A CN106700274A CN201510471063.XA CN201510471063A CN106700274A CN 106700274 A CN106700274 A CN 106700274A CN 201510471063 A CN201510471063 A CN 201510471063A CN 106700274 A CN106700274 A CN 106700274A
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- weather strip
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Abstract
The invention discloses rubber for a sealing strip of an automobile. The rubber is prepared from the following components in percentage by weight: 20%-25% of ethylene propylene diene monomer, 31%-36% of carbon black, 12%-16% of a filling agent, 20-25% of a softening plastifier, 2.6-2.8% of an active agent, 3-5% of a moisture absorbent, and 1.3-2% of the total of a vulcanizing agent and an accelerant. The rubber disclosed by the invention has the characteristics of being resistant to heat, resistant to ozone, high in compression deformation properties, high in sealing properties, free from pollution, free from flavor, long in service life, free from production of bubbles, and low in defect rate.
Description
Technical field
The present invention relates to a kind of rubber, more particularly to it is a kind of adapt to weather strip for automobile rubber and its
Preparation method.
Background technology
Sealing is an important indicator of vehicle complete vehicle quality, and weather strip for automobile product is exactly
One of good and bad important spare part of this index is determined, it is widely used in wind before and after automobile
The vehicle body positions such as gear, car door, vehicle window, initiation cabin, boot, fill up between car body component
Gap, with functions such as damping, waterproof and dustproof, sound insulation, decorations, to driver and conductor and
Vehicle plays maintenance effect.
With the progressively development of automobile industry, the demand for exports amount of weather strip for automobile increases year by year,
Requirement to its quality is also stepped up.In addition to common product performance is met, also more fill
Weight environmental protection, low stain, tasteless grade requires, more to adapt to the development of Hyundai Motor industry.
The content of the invention
The purpose of the present invention is aiming above mentioned problem, there is provided a kind of combination property is good, low dirt
Dye, it is tasteless, bubble is avoided the occurrence of when production, the automobile sealed EPDM of rate of reducing the number of rejects and seconds
Rubber, while additionally providing a kind of method for preparing the rubber.
To achieve these goals, the invention provides following technical scheme：Weather strip for automobile is used
Rubber, it is made up of following components in percentage by weight：
Ethylene propylene diene rubber 20%-25%；
Carbon black 31%-36%；
Filler 12%-16%；
Soften plasticizer 20-25%；
Activating agent 2.6-2.8%；
Vulcanizing agent+accelerator 1.3-2%；
Hygroscopic agent 3-5%.
Preferably, the ethylene propylene diene rubber trade mark is EP525.
Preferably, the carbon black trade mark is HS-22.
Preferably, above-mentioned softening plasticizer can select P2280.
Preferably, the filler is CaCO3。
Preferably, the softening plasticizer is P2280.
Preferably, the activating agent is the one kind or many in stearic acid, polyethylene glycol, zinc oxide
Kind.
Preferably, the vulcanizing agent is sulphur, and the accelerator is accelerator TT, accelerator
One or more in M, altax, accelerator TBZTD.
Preferably, the hygroscopic agent is calcium oxide CaO.
The present invention a kind of preparation method of weather strip for automobile rubber is also provided, its successively include with
Lower step：
(1) get the raw materials ready：Proportioning according to claim 1, by ethylene propylene diene rubber, carbon black
+ filler, softening plasticizer, hygroscopic agent, activating agent are placed after weighing respectively, separately by vulcanizing agent
+ accelerator is matched somebody with somebody together after weighing；
(2) first mixing：By ethylene propylene diene rubber and activating agent and part carbon black+filler
With soften plasticizer input mixer mixing 30-60 second, then proceed to input remaining carbon black+fill out
Material and softening plasticizer are kneaded 60-120 seconds, are unloaded after then continuing to knead 60-90 seconds after cleaning
Expect slice on cutting machine, be made elastomeric compound A；
(3) second mixing：Elastomeric compound A, hygroscopic agent and vulcanizing agent+accelerator input is close
Mill is kneaded 60-90 seconds, and cutting machine is dumped into after then continuing to knead 30-60 seconds after cleaning
Upper slice, completes to prepare.
From the ethylene propylene diene rubber of trade mark EP525, viscosity is low, ethylene contents 60 or so,
Can further help rubber product to obtain outstanding extrusion effect, improve extrusion efficiency.
Hygroscopic agent can play a part of to absorb moisture in sealing strip, prevent product bubble.
The present invention is used as body of rubber material by from suitable ethylene propylene diene rubber, by closing
The formulation ratio of reason, makes the physical and mechanical properties of product good.Original of reduced contamination is selected simultaneously
Material, it is to avoid from variable color substance so that the appearance that product has had.Vulcanizing system is selected
Product is tasteless after vulcanization or material of substantially tasteless.Therefore, product combination property of the invention is good
It is good, low stain, free from extraneous odour.In preparation method, by optimizing calendering process, mixing is reached
Glue is uniformly dispersed, and reduces the defects such as product bubble, reduces percent defective, improve production efficiency.
Specific embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, shown
So, described embodiment is only a part of embodiment of the invention, rather than whole implementation
Example.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under the premise of work, belongs to the scope of protection of the invention.
Embodiment 1-6
Weather strip for automobile rubber involved in the present invention is manufactured according to following steps：(1) it is standby
Material：Ethylene propylene diene rubber, carbon black+filler are softened plasticising by the proportioning in table 1 below
Agent, hygroscopic agent, activating agent are placed after weighing respectively, are matched somebody with somebody after separately vulcanizing agent+accelerator is weighed
Together；
(2) first mixing：By ethylene propylene diene rubber and activating agent, part carbon black+filler and
Soften plasticizer input mixer mixing 30-60 seconds, then proceed to put into remaining carbon black+filler
Kneaded 60-120 seconds with plasticizer is softened, unloaded after then continuing to knead 60-90 seconds after cleaning
Expect slice on cutting machine, be made elastomeric compound A；
(3) second mixing：Elastomeric compound A, hygroscopic agent and vulcanizing agent+accelerator input is close
Mill is kneaded 60-90 seconds, and cutting machine is dumped into after then continuing to knead 30-60 seconds after cleaning
Upper slice, completes to prepare.
Each raw materials used composition of embodiment and content are shown in Table 1.
The composition and consumption of the embodiment 1-6 raw materials of table 1
In preparation process, the mixing time of each embodiment is shown in Table 2.
The mixing time of the embodiment 1-6 of table 2
Time in calendering process is very crucial, and time length is related to the uniform of mixing, material point
Whether dissipate.Time is too short, and material is not completely dispersed, and the defect such as product surface particle is more.When
Between it is long, increase cost, it is also possible to cause sizing material Mooney low, easy bubble of product etc..
The present invention uses appropriate mixing time so that material dispersion is uniform, and surface is without particle, product
Bubble-free.
Table 3 is the performance parameter of embodiment 1-6 products.
The performance parameter of the embodiment 1-6 products of table 3
As can be seen from Table 3, the rubber of embodiment 1-6 is well adapted for window sealing strip
Vulcanization production technology, does not produce bubble, extrusion flowability to be obtained for raising.Meanwhile, stretching
Intensity can reach more than 8.6MPa through experiment, and highest can reach close to 9.4MPa, extend
Rate can reach 297-340%, be suitably applied automobile sealed slat gum.
Above-described is only the preferred embodiment of the present invention, it is noted that for this area
Those of ordinary skill for, without departing from the concept of the premise of the invention, can also do
Go out some deformations and improvement, these belong to protection scope of the present invention.
Claims (9)
1. weather strip for automobile rubber, it is characterised in that：It is made up of following components in percentage by weight：
Ethylene propylene diene rubber 20%-25%；
Carbon black 31%-36%；
Filler 12%-16%；
Soften plasticizer 20-25%；
Activating agent 2.6-2.8%；
Vulcanizing agent+accelerator 1.3-2%；
Hygroscopic agent 3-5%.
2. weather strip for automobile rubber according to claim 1, it is characterised in that：The trade mark of the ethylene propylene diene rubber is EP525.
3. weather strip for automobile rubber according to claim 1, it is characterised in that：The carbon black is HS-22.
4. weather strip for automobile rubber according to claim 1, it is characterised in that：The filler is CaCO3。
5. weather strip for automobile rubber according to claim 1, it is characterised in that：The softening plasticizer is P2280.
6. weather strip for automobile rubber according to claim 1, it is characterised in that：The activating agent is one or more in stearic acid, polyethylene glycol, zinc oxide.
7. weather strip for automobile rubber according to claim 1, it is characterised in that：The vulcanizing agent is sulphur, and the accelerator is one or more in accelerator TT, captax, altax, accelerator TBZTD.
8. weather strip for automobile rubber according to claim 1, it is characterised in that：The hygroscopic agent is CaO.
9. a kind of preparation method of weather strip for automobile rubber, it is characterised in that：The preparation method is comprised the following steps：
(1) get the raw materials ready：By ethylene propylene diene rubber, carbon black, filler, soften after plasticizer, hygroscopic agent, activating agent are weighed respectively and place, separately by vulcanizing agent+accelerator with together；
(2) first mixing：By ethylene propylene diene rubber and activating agent, and part carbon black+filler and softening plasticizer put into mixer mixing 30-60 seconds, then proceed to put into remaining carbon black+filler and soften plasticizer knead 60-120 seconds, then slice on cutting machine is dumped into after continuing to knead 60-90 seconds after cleaning, elastomeric compound A is made；
(3) second mixing：By elastomeric compound A, hygroscopic agent and vulcanizing agent+accelerator input mixer mixing 60-90 seconds, slice on cutting machine is dumped into after then continuing to knead 30-60 seconds after cleaning, completes to prepare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510471063.XA CN106700274A (en) | 2015-08-04 | 2015-08-04 | Rubber for sealing strip of automobile and preparation method of rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510471063.XA CN106700274A (en) | 2015-08-04 | 2015-08-04 | Rubber for sealing strip of automobile and preparation method of rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106700274A true CN106700274A (en) | 2017-05-24 |
Family
ID=58929768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510471063.XA Pending CN106700274A (en) | 2015-08-04 | 2015-08-04 | Rubber for sealing strip of automobile and preparation method of rubber |
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| Country | Link |
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| CN (1) | CN106700274A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486036A (en) * | 2018-11-07 | 2019-03-19 | 太仓冠联高分子材料有限公司 | A kind of high fire-retardance sealing strip ethylene propylene diene terpolymer sponge rubber and preparation method thereof |
| CN109627609A (en) * | 2018-12-27 | 2019-04-16 | 江阴海达橡塑股份有限公司 | One kind superconducting EPT rubber packing item |
| CN109824988A (en) * | 2019-01-25 | 2019-05-31 | 柳州宏桂汽车零部件有限公司 | A kind of sealing strip composite material and preparation method |
| CN109897286A (en) * | 2019-01-25 | 2019-06-18 | 柳州宏桂汽车零部件有限公司 | A kind of sealing strip insulating materials and preparation method thereof |
| CN114369318A (en) * | 2022-01-06 | 2022-04-19 | 安徽鑫煜门窗有限公司 | Sealing strip sizing material for door bottom end and sealing strip thereof |
| CN115466464A (en) * | 2022-10-28 | 2022-12-13 | 江苏冠联新材料科技股份有限公司 | Ethylene propylene diene monomer rubber for washing machine door seal and preparation method thereof |
-
2015
- 2015-08-04 CN CN201510471063.XA patent/CN106700274A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 唐斌 等: "《乙丙橡胶应用技术》", 30 June 2005, 化学工业出版社 材料科学与工程出版中心 * |
| 谢忠麟 等: "《橡胶制品实用配方大全》", 31 March 1999, 化学工业出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486036A (en) * | 2018-11-07 | 2019-03-19 | 太仓冠联高分子材料有限公司 | A kind of high fire-retardance sealing strip ethylene propylene diene terpolymer sponge rubber and preparation method thereof |
| CN109627609A (en) * | 2018-12-27 | 2019-04-16 | 江阴海达橡塑股份有限公司 | One kind superconducting EPT rubber packing item |
| CN109824988A (en) * | 2019-01-25 | 2019-05-31 | 柳州宏桂汽车零部件有限公司 | A kind of sealing strip composite material and preparation method |
| CN109897286A (en) * | 2019-01-25 | 2019-06-18 | 柳州宏桂汽车零部件有限公司 | A kind of sealing strip insulating materials and preparation method thereof |
| CN109897286B (en) * | 2019-01-25 | 2022-09-06 | 柳州宏桂汽车零部件有限公司 | Insulating material for sealing strip and preparation method thereof |
| CN109824988B (en) * | 2019-01-25 | 2022-09-06 | 柳州宏桂汽车零部件有限公司 | Sealing strip composite material and preparation method thereof |
| CN114369318A (en) * | 2022-01-06 | 2022-04-19 | 安徽鑫煜门窗有限公司 | Sealing strip sizing material for door bottom end and sealing strip thereof |
| CN115466464A (en) * | 2022-10-28 | 2022-12-13 | 江苏冠联新材料科技股份有限公司 | Ethylene propylene diene monomer rubber for washing machine door seal and preparation method thereof |
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Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |