CN103524890A - Passenger car tyre valve sizing material and preparation method thereof - Google Patents
Passenger car tyre valve sizing material and preparation method thereof Download PDFInfo
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- CN103524890A CN103524890A CN201210231903.1A CN201210231903A CN103524890A CN 103524890 A CN103524890 A CN 103524890A CN 201210231903 A CN201210231903 A CN 201210231903A CN 103524890 A CN103524890 A CN 103524890A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention discloses a passenger car tyre valve sizing material which comprises the following components in percentage by weight: 27%-37% of ethylene-propylene rubber, 23%-33% of carbon black, 5%-11% of white carbon black, 21%-31% of softening and plasticizing agent, 1%-7% of active agent, 0.1%-0.7% of anti-aging agent, 0.4%-1.0% of vulcanizing agent, and 0.6%-1.2% of accelerating agent. The invention also provides a preparation method of the passenger car tyre valve sizing material. The product has the advantages of good ozone resistant property and weather and aging resistant property, high adhesion strength with metal and more safety and reliability.
Description
Technical field
The present invention relates to a kind of sizing material, be specifically related to a kind of tyres for passenger cars inflating valve sizing material and preparation method thereof.
Background technology
The work-ing life of existing tyres for passenger cars inflating valve sizing material is mostly shorter, and this is because glue kind is selected improper.Glue kind used is in the majority with natural rubber, and natural rubber ageing-resistant performance is not good enough, easily there is premature ageing phenomenon in product, especially ozone-resistant aging property is poor, after using for some time, product there will be the even seal failure of poor sealing causing because of ozone ageing, thereby must to product, change in time.For improving ageing-resistant performance, need to add protection system, but the bond strength that adds and may affect rubber and metal gaseous core of anti-aging agent.
Therefore, a kind of tyres for passenger cars inflating valve sizing material of can Weather-resistant and meeting bond strength particular requirement urgently occurs.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of can Weather-resistant and meet the tyres for passenger cars inflating valve sizing material of bond strength particular requirement.
For achieving the above object, technical scheme of the present invention is as follows: a kind of tyres for passenger cars inflating valve sizing material, described tyres for passenger cars inflating valve sizing material comprises the component of following mass percent: ethylene-propylene rubber(EPR) 27%～37%, carbon black 23%～33%, white carbon black 5%～11%, softening softening agent 21%～31%, promoting agent 1%～7%, anti-aging agent 0.1%～0.7%, vulcanizing agent 0.4%～1.0%, promotor 0.6%～1.2%.
Preferably, described tyres for passenger cars inflating valve sizing material comprises the component of following mass percent: ethylene-propylene rubber(EPR) 29%～35%, carbon black 25%～31%, white carbon black 6%～10%, softening softening agent 23%～29%, promoting agent 2%～6%, anti-aging agent 0.2%～0.6%, vulcanizing agent 0.5%～0.9%, promotor 0.7%～1.1%.
Preferably, described tyres for passenger cars inflating valve sizing material comprises the component of following mass percent: ethylene-propylene rubber(EPR) 31%～33%, carbon black 27%～29%, white carbon black 7%～9%, softening softening agent 25%～27%, promoting agent 3%～5%, anti-aging agent 0.3%～0.5%, vulcanizing agent 0.6%～0.8%, promotor 0.8%～1.0%.
Preferably, described tyres for passenger cars inflating valve sizing material comprises the component of following mass percent: ethylene-propylene rubber(EPR) 32%, carbon black 28%, white carbon black 8%, softening softening agent 26%, promoting agent 4%, anti-aging agent 0.4%, vulcanizing agent 0.7%, promotor 0.9%.
Preferably, described softening softening agent is paraffin oil, and described promoting agent is zinc oxide or stearic acid, or zinc oxide and stearic acid mixture, described vulcanizing agent is sulphur, and described promotor is a kind of in TMTD, TRA, M, or two or more mixture wherein.
Preferably, described tyres for passenger cars inflating valve sizing material also comprises other auxiliary agent, and described other auxiliary agents comprise anti-aging agent RD or processing aid PEG, or their mixture.RD is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer, and PEG is polyoxyethylene glycol.The application of anti-aging agent RD is further strengthened the resistance toheat of sizing material, can give product longer work-ing life; The cross-linking density when application of processing aid PEG has further improved rubber vulcanization, thus the rear possibility that occurs " telling frost " of ethylene-propylene rubber(EPR) sulfuration effectively reduced.
Than prior art, remarkable advantage of the present invention is: by changing sizing material composition, in described tyres for passenger cars inflating valve sizing material, use ethylene-propylene rubber(EPR) for material of main part, ethylene-propylene rubber(EPR) has good processing characteristics and good resistance to ozone, anti-weather-aging property, can not only give product longer work-ing life, there is again good technology stability simultaneously; Use carbon black, to product, provide enough physical and mechanical propertiess, improved the wear resistance of product; When component design, by reasonable selection material and the strict management and control to material, make product meet the environmental requirement of ROHS and EU REACH Legislation comprehensively; By adding white carbon black, promoting agent and softening softening agent, make the bond strength of sizing material and metal high, product is more safe and reliable; For easily occurring the deficiency of " telling frost " after ethylene-propylene rubber(EPR) sulfuration, by the specific vulcanization system that adopts the contrast test optimization of repeatedly " telling frost " to confirm, guarantee that the product after sulfuration can not produce " telling frost ".In sum, the present invention is than prior art, and having can Weather-resistant and meet the remarkable advantage of bond strength particular requirement.
The present invention also provides a kind of preparation method of tyres for passenger cars inflating valve sizing material, and this preparation method is:
The first step: batching; According to formula rate, carry out weigh batching; Ethylene-propylene rubber(EPR) is weighed separately, after promoting agent is weighed, mix and place, then by upper auxiliary system, carbon black, white carbon black and softening softening agent are carried out to automatic weighing, will after vulcanizing agent and promotor weighing, mix and place;
Second step, banburying; First paragraph drops into ethylene-propylene rubber(EPR), promoting agent in Banbury mixer, adds carbon black, white carbon black and softening softening agent after mixing, cleans after mixing; After mixing again, carry out discharge; Second segment, above-mentioned rubber unvulcanizate is standing after, more again drop into Banbury mixer, add vulcanizing agent and promotor, the mixing discharge that carries out simultaneously;
The 3rd step, opens refining; First paragraph, in mill, carry out mixing, then slice blanking after turning refining; Second segment, above-mentioned sizing material is carried out again in mill mixing, then slice blanking after turning refining;
The 4th step, cooling;
The 5th step, rewinding.
Preferably, in described second step, the ethylene-propylene rubber(EPR) of first paragraph and promoting agent mixing time are 50～70 seconds, and adding mixing time after carbon black, white carbon black and softening softening agent is 140～160 seconds, and after cleaning, mixing time is 50～70 seconds again.
Preferably, in described second step, second segment rubber unvulcanizate time of repose is no less than 8 hours, described in to add the mixing time after vulcanizing agent and promotor be 80～100 seconds.
Preferably, in described the 3rd step, the first paragraph time of turning refining is 110～130 seconds; In described the 3rd step, the second segment time of turning refining is 70～90 seconds.
Preferably, cooling in described the 4th step is that the described sizing material of stating is cooled to below 35 ℃.
Than the mixing method of traditional one-part form of prior art, what the inventive method adopted is the mixing method of two-section type, and prepared sizing material is dispersed better, and the security of processing is higher, and sizing material is not prone to the adverse consequences of scorching in the course of processing.
Accompanying drawing explanation
Fig. 1 is preparation technology's schema of the embodiment of the present invention 1.
Embodiment
Technical scheme in the embodiment of the present invention is carried out to clear, complete description below, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1,
An inflating valve sizing material, the mass percent of each component is: ethylene-propylene rubber(EPR) 32%, carbon black 32%, white carbon black 6%, softening softening agent 26%, promoting agent 2.2%, vulcanizing agent 0.8%, promotor 1.0%.
The method of preparing above-mentioned tyres for passenger cars inflating valve sizing material, concrete step comprises:
(1) batching, carries out weigh batching according to above formula.Ethylene-propylene rubber(EPR) is weighed separately, mass percent is respectively to 1.8% zinc oxide and places 0.4% rear mixing of stearic acid weighing, then by upper auxiliary system, carbon black, white carbon black and softening softening agent are carried out to automatic weighing, vulcanizing agent and promotor are weighed to the rear placement that mixes;
(2) banburying, first paragraph drops into ethylene-propylene rubber(EPR), promoting agent in Banbury mixer, adds carbon black, white carbon black and softening softening agent after mixing 50 seconds, after mixing 160 seconds, cleans; After mixing 50 seconds, carry out discharge again.Second segment, is no less than 8 hours by above-mentioned rubber unvulcanizate is standing, more above-mentioned sizing material is dropped into Banbury mixer again, adds vulcanizing agent and promotor simultaneously, within mixing 100 seconds, carries out discharge;
(3) open refining, first paragraph, in mill, carry out mixing, then slice blanking after turning refining 130 seconds; Second segment, above-mentioned sizing material is carried out again in mill mixing, then slice blanking after turning refining 90 seconds;
(4) cooling, above-mentioned sizing material is cooled to 30 ℃;
(5) rewinding.
Embodiment 2,
An inflating valve sizing material, the mass percent of each component is: ethylene-propylene rubber(EPR) 33%, carbon black 30%, white carbon black 7%, softening softening agent 26%, promoting agent 2%, vulcanizing agent 0.7%, promotor 1.0%, anti-aging agent RD 0.15%, processing aid PEG0.15%.
The method of preparing above-mentioned tyres for passenger cars inflating valve sizing material, concrete step comprises:
(1) batching, according to aforementioned proportion formula, carry out weigh batching, ethylene-propylene rubber(EPR) is weighed separately, mass percent is respectively to 1.7% zinc oxide and places 0.3% rear mixing of stearic acid weighing, then by upper auxiliary system, carbon black, white carbon black and softening softening agent are carried out to automatic weighing, vulcanizing agent and promotor are weighed to the rear placement that mixes;
(2) banburying, first paragraph drops into ethylene-propylene rubber(EPR), promoting agent in Banbury mixer, adds carbon black, white carbon black and softening softening agent after mixing 70 seconds, after mixing 140 seconds, cleans; After mixing 70 seconds, carry out discharge again.Second segment, by standing 9 hours of above-mentioned rubber unvulcanizate, then drops into Banbury mixer again by above-mentioned sizing material, adds vulcanizing agent and promotor simultaneously, within mixing 80 seconds, carries out discharge;
(3) open refining, first paragraph, in mill, carry out mixing, then slice blanking after turning refining 110 seconds; Second segment, above-mentioned sizing material is carried out again in mill mixing, then slice blanking after turning refining 70 seconds;
(4) cooling, above-mentioned sizing material is cooled to 34 ℃;
(5) rewinding.
Embodiment 3,
The mass percent of described each component of tyres for passenger cars inflating valve sizing material comprises: ethylene-propylene rubber(EPR) 32%, carbon black 30%, white carbon black 6%, softening softening agent 26%, promoting agent 4%, vulcanizing agent 0.4%, promotor 1.2%, and, anti-aging agent RD 0.2%, processing aid PEG0.2%.
The method of preparing above-mentioned tyres for passenger cars inflating valve sizing material, concrete step comprises:
(1) batching, according to aforementioned proportion formula, carry out weigh batching, ethylene-propylene rubber(EPR) is weighed separately, mass percent is respectively to 3.3% zinc oxide and places 0.7% rear mixing of stearic acid weighing, then by upper auxiliary system, carbon black, white carbon black and softening softening agent are carried out to automatic weighing, vulcanizing agent and promotor are weighed to the rear placement that mixes;
(2) banburying, first paragraph drops into ethylene-propylene rubber(EPR), promoting agent in Banbury mixer, adds carbon black, white carbon black and softening softening agent after mixing 60 seconds, after mixing 150 seconds, cleans; After mixing 60 seconds, carry out discharge again.Second segment, by standing 10 hours of above-mentioned rubber unvulcanizate, then drops into Banbury mixer again by above-mentioned sizing material, adds vulcanizing agent and promotor simultaneously, within mixing 90 seconds, carries out discharge;
(3) open refining, first paragraph, in mill, carry out mixing, then slice blanking after turning refining 120 seconds; Second segment, above-mentioned sizing material is carried out again in mill mixing, then slice blanking after turning refining 80 seconds;
(4) cooling, above-mentioned sizing material is cooled to 25 ℃;
(5) rewinding.
Embodiment 4,
An inflating valve sizing material, the mass percent of each component is: ethylene-propylene rubber(EPR) 32%, carbon black 28%, white carbon black 8%, softening softening agent 26%, promoting agent 4%, vulcanizing agent 0.7%, promotor 1.0%, anti-aging agent 0.3%.
The method of preparing above-mentioned tyres for passenger cars inflating valve sizing material, concrete step comprises:
(1) batching, according to above-mentioned formula, carry out weigh batching, ethylene-propylene rubber(EPR) weighs separately, mass percent is that stearic acid that 3.3% promoting agent zinc oxide and mass percent are 0.7% mixes and places, then by upper auxiliary system, carbon black, white carbon black and softening softening agent are carried out to automatic weighing, vulcanizing agent and promotor are weighed to the rear placement that mixes;
(2) banburying, first paragraph drops into ethylene-propylene rubber(EPR), promoting agent in Banbury mixer, adds carbon black, white carbon black and softening softening agent after mixing 65 seconds, after mixing 155 seconds, cleans; After mixing 55 seconds, carry out discharge again.Second segment, is no less than 8 hours by above-mentioned rubber unvulcanizate is standing, more above-mentioned sizing material is dropped into Banbury mixer again, adds vulcanizing agent and promotor simultaneously, within mixing 85 seconds, carries out discharge;
(3) open refining, first paragraph, in mill, carry out mixing, then slice blanking after turning refining 115 seconds; Second segment, above-mentioned sizing material is carried out again in mill mixing, then slice blanking after turning refining 75 seconds;
(4) cooling, above-mentioned sizing material is cooled to below 35 ℃;
(5) rewinding.
Embodiment 5,
The mass percent of each component of tyres for passenger cars inflating valve sizing material is: ethylene-propylene rubber(EPR) 32%, carbon black 30%, white carbon black 6%, softening softening agent 26%, promoting agent 4%, vulcanizing agent 0.7%, promotor 0.7%, anti-aging agent 0.6%.
Embodiment 6,
The mass percent of each component of tyres for passenger cars inflating valve sizing material is: ethylene-propylene rubber(EPR) 31%, carbon black 29%, white carbon black 9.5%, softening softening agent 24%, promoting agent 4%, anti-aging agent 0.3%, vulcanizing agent 0.7%, promotor 1.0%.
Embodiment 7,
All the other are same as the previously described embodiments, difference is, the mass percent of described each component of tyres for passenger cars inflating valve sizing material comprises: ethylene-propylene rubber(EPR) 32%, carbon black 28%, white carbon black 8%, softening softening agent 26%, promoting agent 4%, anti-aging agent 0.4%, vulcanizing agent 0.7, promotor 0.9%.
The technical scheme of embodiment 7 is the best-of-breed technology scheme of the described tyres for passenger cars inflating valve sizing material of preparation, adopt the synthetic sizing material of this technical scheme, ageing resistance is better, and product is longer work-ing life, safe reliability is good simultaneously, has reduced use cost and application risk concerning user.
Except above-mentioned several embodiment, the shared ratio of each component can also be other situations, and embodiment is determined on a case-by-case basis, and at this, the present invention does not limit.
Ratio formula changes within the scope of this in a word: ethylene-propylene rubber(EPR) 27%～37%, carbon black 23%～33%, white carbon black 5%～11%, softening softening agent 21%～31%, promoting agent 1%～7%, anti-aging agent 0.1%～0.7%, vulcanizing agent 0.4%～1.0%, promotor 0.6%～1.2%.
Wherein said softening softening agent is paraffin oil, and described promoting agent is zinc oxide or stearic acid, or zinc oxide and stearic acid mixture, and described vulcanizing agent is sulphur, and described promotor is a kind of in TMTD, TRA, M, or two or more mixture wherein.
Described tyres for passenger cars inflating valve sizing material also comprises other auxiliary agent, and described other auxiliary agents comprise anti-aging agent RD or processing aid PEG, or their mixture.RD is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer, and PEG is polyoxyethylene glycol.
Than prior art, remarkable advantage of the present invention is: in described tyres for passenger cars inflating valve sizing material, use ethylene-propylene rubber(EPR) for material of main part, ethylene-propylene rubber(EPR) has good processing characteristics and good resistance to ozone, anti-weather-aging property; By adding white carbon black, promoting agent and softening softening agent, make the bond strength of sizing material and metal high, product is more safe and reliable; The application of anti-aging agent RD makes the resistance toheat of sizing material better, can give product longer work-ing life; The cross-linking density when application of processing aid PEG has further improved rubber vulcanization, thus the rear possibility that occurs " telling frost " of ethylene-propylene rubber(EPR) sulfuration effectively reduced.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a tyres for passenger cars inflating valve sizing material, is characterized in that, described tyres for passenger cars inflating valve sizing material comprises the component of following mass percent:
Ethylene-propylene rubber(EPR) 27%～37%, carbon black 23%～33%, white carbon black 5%～11%, softening softening agent 21%～31%, promoting agent 1%～7%, anti-aging agent 0.1%～0.7%, vulcanizing agent 0.4%～1.0%, promotor 0.6%～1.2%.
2. tyres for passenger cars inflating valve sizing material according to claim 1, is characterized in that, described tyres for passenger cars inflating valve sizing material comprises the component of following mass percent:
Ethylene-propylene rubber(EPR) 29%～35%, carbon black 25%～31%, white carbon black 6%～10%, softening softening agent 23%～29%, promoting agent 2%～6%, anti-aging agent 0.2%～0.6%, vulcanizing agent 0.5%～0.9%, promotor 0.7%～1.1%.
3. tyres for passenger cars inflating valve sizing material according to claim 1, is characterized in that, described tyres for passenger cars inflating valve sizing material comprises the component of following mass percent:
Ethylene-propylene rubber(EPR) 31%～33%, carbon black 27%～29%, white carbon black 7%～9%, softening softening agent 25%～27%, promoting agent 3%～5%, anti-aging agent 0.3%～0.5%, vulcanizing agent 0.6%～0.8%, promotor 0.8%～1.0%.
4. tyres for passenger cars inflating valve sizing material according to claim 1, is characterized in that, described tyres for passenger cars inflating valve sizing material comprises the component of following mass percent:
Ethylene-propylene rubber(EPR) 32%, carbon black 28%, white carbon black 8%, softening softening agent 26%, promoting agent 4%, anti-aging agent 0.4%, vulcanizing agent 0.7%, promotor 0.9%.
5. according to the arbitrary described tyres for passenger cars inflating valve sizing material of claim 1～4, it is characterized in that, described softening softening agent is paraffin oil, described promoting agent is zinc oxide or stearic acid, or zinc oxide and stearic acid mixture, described vulcanizing agent is sulphur, and described promotor is a kind of in TMTD, TRA, M, or two or more mixture wherein.
6. according to the arbitrary described tyres for passenger cars inflating valve sizing material of claim 1～4, it is characterized in that, described tyres for passenger cars inflating valve sizing material comprises anti-aging agent RD or processing aid PEG, or their mixture.
7. a preparation method for tyres for passenger cars inflating valve sizing material, is characterized in that, this preparation method is:
The first step: batching; According to formula rate, carry out weigh batching;
Second step, banburying; First paragraph drops into ethylene-propylene rubber(EPR), promoting agent in Banbury mixer, adds carbon black, white carbon black and softening softening agent after mixing, cleans after mixing; After mixing again, carry out discharge; Second segment, above-mentioned rubber unvulcanizate is standing after, more again drop into Banbury mixer, add vulcanizing agent and promotor, the mixing discharge that carries out simultaneously;
The 3rd step, opens refining; First paragraph, in mill, carry out mixing, then slice blanking after turning refining; Second segment, above-mentioned sizing material is carried out again in mill mixing, then slice blanking after turning refining;
The 4th step, cooling;
The 5th step, rewinding.
8. according to the preparation method of tyres for passenger cars inflating valve sizing material claimed in claim 7, it is characterized in that, in described second step, the ethylene-propylene rubber(EPR) of first paragraph and promoting agent mixing time are 50～70 seconds, adding mixing time after carbon black, white carbon black and softening softening agent is 140～160 seconds, and after cleaning, mixing time is 50～70 seconds again; In described second step, second segment rubber unvulcanizate time of repose is no less than 8 hours, described in to add the mixing time after vulcanizing agent and promotor be 80～100 seconds.
9. according to the preparation method of tyres for passenger cars inflating valve sizing material claimed in claim 7, it is characterized in that, in described the 3rd step, the first paragraph time of turning refining is 110～130 seconds; In described the 3rd step, the second segment time of turning refining is 70～90 seconds.
10. according to the preparation method of tyres for passenger cars inflating valve sizing material claimed in claim 7, it is characterized in that, cooling in described the 4th step is that described sizing material is cooled to below 35 ℃.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN107672081A (en) * | 2017-09-08 | 2018-02-09 | 特拓(青岛)轮胎技术有限公司 | High filling white carbon black tyre surface finished composition mixing system and technique based on automatic mill |
| CN109535517A (en) * | 2018-12-05 | 2019-03-29 | 熊祚红 | Motorcycle tyre tube and preparation method thereof |
| CN112812452A (en) * | 2020-12-30 | 2021-05-18 | 山东豪迈气门嘴有限公司 | Butyl inflating valve rubber compound with high tear resistance and preparation method thereof |
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| CN102337092A (en) * | 2011-07-22 | 2012-02-01 | 北京化工大学 | Adhesive layer rubber material for high-temperature-resistant canvas conveyor belt and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102337092A (en) * | 2011-07-22 | 2012-02-01 | 北京化工大学 | Adhesive layer rubber material for high-temperature-resistant canvas conveyor belt and using method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107672081A (en) * | 2017-09-08 | 2018-02-09 | 特拓(青岛)轮胎技术有限公司 | High filling white carbon black tyre surface finished composition mixing system and technique based on automatic mill |
| CN109535517A (en) * | 2018-12-05 | 2019-03-29 | 熊祚红 | Motorcycle tyre tube and preparation method thereof |
| CN112812452A (en) * | 2020-12-30 | 2021-05-18 | 山东豪迈气门嘴有限公司 | Butyl inflating valve rubber compound with high tear resistance and preparation method thereof |
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