CN112011106A - Rubber adjusting sheet and preparation method thereof - Google Patents
Rubber adjusting sheet and preparation method thereof Download PDFInfo
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- CN112011106A CN112011106A CN201910466280.8A CN201910466280A CN112011106A CN 112011106 A CN112011106 A CN 112011106A CN 201910466280 A CN201910466280 A CN 201910466280A CN 112011106 A CN112011106 A CN 112011106A
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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
- C08L15/00—Compositions of rubber derivatives
- C08L15/02—Rubber derivatives containing halogen
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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
- B29B7/002—Methods
- B29B7/007—Methods for continuous mixing
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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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention relates to the technical field of rubber products and discloses a rubber adjusting sheet which comprises the following raw materials in parts by weight: 100-140 parts of natural fluororubber, 80-100 parts of polyurethane rubber, 30-50 parts of chloroprene rubber, 20-30 parts of ethanol, 10-20 parts of carbon black, 50-100 parts of deionized water, 1-3 parts of microcrystalline wax, 5-7 parts of asphalt, 2-4 parts of paraffin, 10-30 parts of barium sulfate, 2-7 parts of an accelerator, 5-7 parts of a coupling agent and 3-5 parts of an active agent. The rubber regulating sheet and the preparation method thereof are characterized in that 100-140 parts of thin-passing natural fluororubber, 80-100 parts of polyurethane rubber and 30-50 parts of chloroprene rubber are mixed, 10-30 parts of barium sulfate, 2-7 parts of accelerant, 5-7 parts of coupling agent and 3-5 parts of active agent are added, the mixture is stirred and mixed after high-temperature melting to obtain mixed rubber 1, the mixed rubber 1 is put into an open mill, the mixed rubber 1 returns to the position above a roller distance and passes through the roller distance again after passing through the roller distance, and the prepared rubber regulating sheet has good oxidation resistance and greatly prolongs the service life.
Description
Technical Field
The invention relates to the technical field of rubber products, in particular to a rubber adjusting sheet and a preparation method thereof.
Background
The term "rubber" is derived from Indian cau-uchu, and means "lacrimation tree", natural rubber is obtained by coagulating and drying latex flowing out from hevea tree during tapping, the processed product is elastic, insulating and waterproof material, and is mainly divided into two types of natural rubber and synthetic rubber, the natural rubber is obtained by extracting colloid from plants such as rubber tree and rubber grass and processing, the synthetic rubber is obtained by polymerizing various monomers, and the rubber product is widely applied to industry or life. The rubber has wide application, and can be divided into natural rubber, general rubber, styrene-butadiene rubber, nitrile rubber, silicon rubber, butadiene rubber, isoprene rubber, ethylene propylene rubber and chloroprene rubber in detail.
Chinese patent CN106674831A discloses a high-temperature steam resistant ethylene propylene rubber/fluororubber mixed rubber, which has good high-temperature steam resistance, and metal powder is added into the ethylene propylene rubber/fluororubber mixed rubber, so that heat can be dissipated timely when the ethylene propylene rubber/fluororubber mixed rubber is used in superheated steam, the service life of the ethylene propylene rubber/fluororubber mixed rubber is prolonged, but the rubber has general oxidation resistance and short service life when used as a rubber regulating sheet material, and a rubber regulating sheet and a preparation method thereof are provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the rubber adjusting sheet and the preparation method thereof, which have the advantages of good oxidation resistance, long service life and the like, and solve the problem that the traditional rubber has common oxidation resistance and short service life when being used as a rubber adjusting sheet material.
(II) technical scheme
In order to realize the purposes of good oxidation resistance and long service life, the invention provides the following technical scheme: a rubber adjusting sheet comprises the following raw materials in parts by weight: 100-140 parts of natural fluorine rubber, 80-100 parts of polyurethane rubber, 30-50 parts of chloroprene rubber, 20-30 parts of ethanol, 10-20 parts of carbon black, 50-100 parts of deionized water, 1-3 parts of microcrystalline wax, 5-7 parts of asphalt, 2-4 parts of paraffin, 10-30 parts of barium sulfate, 2-7 parts of an accelerator, 5-7 parts of a coupling agent and 3-5 parts of an active agent.
Preferably, the accelerator 2-7 parts is one or a mixture of two of dicumyl peroxide and triallyl isocyanurate.
Preferably, 3-5 parts of the activating agent is one or a mixture of two of zinc oxide and magnesium oxide, and 5-7 parts of the coupling agent is a silane coupling agent.
A preparation method of a rubber adjusting sheet comprises the following steps:
1) putting 140 parts of 100-fold natural fluorine rubber into an open mill, ensuring that the roller distance of the open mill is 0.7mm, directly dropping the 140 parts of the 100-fold natural fluorine rubber on a receiving tray without wrapping a roller after the 140 parts of the 100-fold natural fluorine rubber pass through the roller distance, returning the 140 parts of the 100-fold natural fluorine rubber to the upper part of the roller distance to pass through the roller distance again after the 140 parts of the 100-fold natural fluorine rubber pass through the roller distance, and repeatedly carrying out thin passing for six times;
2) 30-50 parts of chloroprene rubber is put into an open mill, the roller spacing of the open mill is ensured to be 0.7mm, 30-50 parts of chloroprene rubber directly falls on a material receiving disc without wrapping a roller after passing through the roller spacing, and after 30-50 parts of chloroprene rubber completely passes through the roller spacing, 30-50 parts of chloroprene rubber returns to the position above the roller spacing and passes through the roller spacing again, and the thin passing is repeated for three times;
3) 80-100 parts of polyurethane rubber is put into an open mill, the roller distance of the open mill is ensured to be 0.7mm, 80-100 parts of polyurethane rubber directly falls on a material receiving disc without wrapping a roller after passing through the roller distance, 80-100 parts of polyurethane rubber returns to the upper part of the roller distance to pass through the roller distance again after 80-100 parts of polyurethane rubber passes through the roller distance, and the thin passing is repeated for five times;
4) mixing 100-140 parts of thin-passing natural fluororubber, 80-100 parts of polyurethane rubber and 30-50 parts of chloroprene rubber, adding 10-30 parts of barium sulfate, 2-7 parts of accelerator, 5-7 parts of coupling agent and 3-5 parts of activator, melting at high temperature, stirring and mixing to obtain mixed rubber 1;
5) putting the mixed rubber 1 into an open mill, ensuring that the roll gap of the open mill is 0.7mm, directly dropping the mixed rubber 1 on a receiving tray without wrapping a roll after the mixed rubber 1 passes through the roll gap, returning the mixed rubber 1 above the roll gap to pass through the roll gap again after the mixed rubber 1 passes through the roll gap, and repeatedly performing thin passing for three times;
6) adding 20-30 parts of ethanol, 10-20 parts of carbon black, 50-100 parts of deionized water, 1-3 parts of microcrystalline wax, 5-7 parts of asphalt and 2-4 parts of paraffin into the mixed rubber 1 which is thinned and passed through three times, melting at high temperature, stirring, mixing, and carrying out extrusion forming to obtain the rubber regulating sheet.
(III) advantageous effects
Compared with the prior art, the invention provides the rubber adjusting sheet and the preparation method thereof, and the rubber adjusting sheet has the following beneficial effects:
1. the rubber regulating sheet and the preparation method thereof are characterized in that 100-140 parts of thin-passing natural fluororubber, 80-100 parts of polyurethane rubber and 30-50 parts of chloroprene rubber are mixed, 10-30 parts of barium sulfate, 2-7 parts of accelerator, 5-7 parts of coupling agent and 3-5 parts of activator are added, the mixture is stirred and mixed after high-temperature melting to obtain mixed rubber 1, the mixed rubber 1 is put into an open mill, the roller distance of the open mill is ensured to be 0.7mm, the mixed rubber 1 directly falls on a receiving disc without wrapping a roller after passing through a roller space, the mixed rubber 1 returns to the position above the roller space to pass through the roller space again after passing through the roller space, the thin-passing is repeated for three times, 20-30 parts of ethanol, 10-20 parts of carbon black, 50-100 parts of deionized water, 1-3 parts of microcrystalline wax, and the mixed rubber 1 which is thin-passed for three times is added with the mixture, 5-7 parts of asphalt and 2-4 parts of paraffin are melted at high temperature, stirred, mixed and extruded to form the rubber regulating sheet, and the prepared rubber regulating sheet has good oxidation resistance and greatly prolonged service life.
2. The rubber regulating sheet and the preparation method thereof are characterized in that 140 parts of natural fluorine rubber is put into an open mill, the roller distance of the open mill is ensured to be 0.7mm, 140 parts of natural fluorine rubber passes through a roller space and directly falls on a receiving tray without wrapping the roller, when 100 parts of natural fluorine rubber passes through the roller distance, 140 parts of natural fluorine rubber is returned to the position above the roller distance to pass through the roller distance again, the thin passing is repeated for six times, 30-50 parts of chloroprene rubber is put into the open mill, the roller distance of the open mill is ensured to be 0.7mm, 30-50 parts of chloroprene rubber passes through the roller space and directly falls on the receiving tray without wrapping the roller, after 30-50 parts of chloroprene rubber passes through the roller distance, 30-50 parts of chloroprene rubber is returned to the position above the roller distance to pass through the roller distance again, the thin passing is repeated for three times, 80-100 parts of polyurethane rubber is put into the open mill, the roller spacing of the open mill is ensured to be 0.7mm, 80-100 parts of polyurethane rubber directly falls on the receiving tray without wrapping the roller after passing through the roller space, 80-100 parts of polyurethane rubber returns to the upper part of the roller space to pass through the roller space again after 80-100 parts of polyurethane rubber completely passes through the roller space, and the thin passing is repeated for five times, so that the ductility of the rubber is improved to a certain extent, and the use of a user is further facilitated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: a rubber adjusting sheet comprises the following raw materials in parts by weight: 100 parts of natural fluororubber, 80 parts of polyurethane rubber, 30 parts of chloroprene rubber, 20 parts of ethanol, 10 parts of carbon black, 50 parts of deionized water, 1 part of microcrystalline wax, 5 parts of asphalt, 2 parts of paraffin, 10-30 parts of barium sulfate, 2-7 parts of an accelerator, 5 parts of a coupling agent and 3 parts of an active agent.
2-7 parts of an accelerator, namely one or a mixture of two of dicumyl peroxide and triallyl isocyanurate.
3 parts of activating agent is one or the mixture of zinc oxide and magnesium oxide, and 5 parts of coupling agent is silane coupling agent.
A preparation method of a rubber adjusting sheet comprises the following steps:
1) putting 100 parts of natural fluororubber into an open mill, ensuring that the roller spacing of the open mill is 0.7mm, directly dropping 100 parts of natural fluororubber on a material receiving disc without wrapping a roller after 100 parts of natural fluororubber pass through the roller spacing, returning 100 parts of natural fluororubber to the upper part of the roller spacing to pass through the roller spacing again after 100 parts of natural fluororubber pass through the roller spacing, and repeatedly performing thin passing for six times;
2) 30 parts of chloroprene rubber is put into an open mill, the roller spacing of the open mill is ensured to be 0.7mm, 30 parts of chloroprene rubber directly falls on a material receiving disc without wrapping a roller after passing through the roller spacing, and after all 30 parts of chloroprene rubber pass through the roller spacing, 30 parts of chloroprene rubber returns to the upper part of the roller spacing to pass through the roller spacing again, and the thin passing is repeated for three times;
3) 80 parts of polyurethane rubber is put into an open mill, the roller distance of the open mill is ensured to be 0.7mm, 80 parts of polyurethane rubber directly falls on a material receiving disc without wrapping a roller after passing through the roller space, 80 parts of polyurethane rubber returns to the position above the roller distance to pass through the roller distance again after all 80 parts of polyurethane rubber pass through the roller distance, and the thin passing is repeated for five times;
4) mixing 100 parts of thin-passing natural fluororubber, 80 parts of polyurethane rubber and 30 parts of chloroprene rubber, adding 10-30 parts of barium sulfate, 2-7 parts of accelerator, 5 parts of coupling agent and 3 parts of activator, melting at high temperature, and stirring and mixing to obtain mixed rubber 1;
5) putting the mixed rubber 1 into an open mill, ensuring that the roll gap of the open mill is 0.7mm, directly dropping the mixed rubber 1 on a receiving tray without wrapping a roll after the mixed rubber 1 passes through the roll gap, returning the mixed rubber 1 above the roll gap to pass through the roll gap again after the mixed rubber 1 passes through the roll gap, and repeatedly performing thin passing for three times;
6) adding 20 parts of ethanol, 10 parts of carbon black, 50 parts of deionized water, 1 part of microcrystalline wax, 5 parts of asphalt and 2 parts of paraffin into the mixed rubber 1 which is subjected to thin-passing three times, melting at high temperature, stirring, mixing and then carrying out extrusion forming to obtain the rubber adjusting sheet.
The addition of 10 parts of carbon black improves the performance of the rubber and has low cost.
Example two: a rubber adjusting sheet comprises the following raw materials in parts by weight: 120 parts of natural fluororubber, 90 parts of polyurethane rubber, 40 parts of chloroprene rubber, 25 parts of ethanol, 15 parts of carbon black, 75 parts of deionized water, 2 parts of microcrystalline wax, 6 parts of asphalt, 3 parts of paraffin, 20 parts of barium sulfate, 4 parts of an accelerator, 6 parts of a coupling agent and 4 parts of an active agent.
The accelerator 4 parts is one or two of dicumyl peroxide and triallyl isocyanurate.
4 parts of activating agent is one or the mixture of zinc oxide and magnesium oxide, and 6 parts of coupling agent is silane coupling agent.
A preparation method of a rubber adjusting sheet comprises the following steps:
1) putting 120 parts of natural fluororubber into an open mill, ensuring that the roller spacing of the open mill is 0.7mm, directly dropping the 120 parts of natural fluororubber on a material receiving disc without wrapping a roller after the 120 parts of natural fluororubber pass through the roller spacing, returning the 120 parts of natural fluororubber to the upper part of the roller spacing to pass through the roller spacing again after all 120 parts of natural fluororubber pass through the roller spacing, and repeatedly performing thin passing for six times;
2) 40 parts of chloroprene rubber is put into an open mill, the roller spacing of the open mill is ensured to be 0.7mm, 40 parts of chloroprene rubber directly falls on a material receiving disc without wrapping a roller after passing through the roller spacing, and after the 40 parts of chloroprene rubber completely pass through the roller spacing, 40 parts of chloroprene rubber returns to the upper part of the roller spacing to pass through the roller spacing again, and the thin passing is repeated for three times;
3) 90 parts of polyurethane rubber is put into an open mill, the roller distance of the open mill is ensured to be 0.7mm, 90 parts of polyurethane rubber directly falls on a material receiving disc without wrapping a roller after passing through a roller space, after all 90 parts of polyurethane rubber pass through the roller distance, 90 parts of polyurethane rubber returns to the upper part of the roller distance to pass through the roller distance again, and the thin passing is repeated for five times;
4) mixing 120 parts of thin-passing natural fluororubber, 90 parts of polyurethane rubber and 40 parts of chloroprene rubber, adding 20 parts of barium sulfate, 4 parts of accelerator, 6 parts of coupling agent and 4 parts of activator, melting at high temperature, and stirring and mixing to obtain mixed rubber 1;
5) putting the mixed rubber 1 into an open mill, ensuring that the roll gap of the open mill is 0.7mm, directly dropping the mixed rubber 1 on a receiving tray without wrapping a roll after the mixed rubber 1 passes through the roll gap, returning the mixed rubber 1 above the roll gap to pass through the roll gap again after the mixed rubber 1 passes through the roll gap, and repeatedly performing thin passing for three times;
6) adding 25 parts of ethanol, 15 parts of carbon black, 75 parts of deionized water, 2 parts of microcrystalline wax, 6 parts of asphalt and 3 parts of paraffin into the mixed rubber 1 which is subjected to thin-passing three times, melting at high temperature, stirring, mixing and then carrying out extrusion forming to obtain the rubber adjusting sheet.
The ductility of the rubber after thin open milling is improved.
Example three: a rubber adjusting sheet comprises the following raw materials in parts by weight: 100 parts of natural fluororubber, 100 parts of polyurethane rubber, 50 parts of chloroprene rubber, 30 parts of ethanol, 20 parts of carbon black, 100 parts of deionized water, 3 parts of microcrystalline wax, 7 parts of asphalt, 4 parts of paraffin, 30 parts of barium sulfate, 7 parts of an accelerator, 7 parts of a coupling agent and 5 parts of an active agent.
The accelerator 7 parts is one or a mixture of two of dicumyl peroxide and triallyl isocyanurate.
5 parts of an active agent is one or a mixture of zinc oxide and magnesium oxide, and 7 parts of a coupling agent is a silane coupling agent.
A preparation method of a rubber adjusting sheet comprises the following steps:
1) putting 140 parts of natural fluororubber into an open mill, ensuring that the roller spacing of the open mill is 0.7mm, directly dropping the 140 parts of natural fluororubber on a material receiving disc without wrapping a roller after the 140 parts of natural fluororubber pass through the roller spacing, returning 140 parts of natural fluororubber to the upper part of the roller spacing to pass through the roller spacing again after the 140 parts of natural fluororubber pass through the roller spacing, and repeatedly performing thin passing for six times;
2) putting 50 parts of chloroprene rubber into an open mill, ensuring that the roll gap of the open mill is 0.7mm, directly dropping 50 parts of chloroprene rubber on a receiving tray without wrapping a roll after passing through the roll gap, returning 50 parts of chloroprene rubber to the upper part of the roll gap to pass through the roll gap again after all 50 parts of chloroprene rubber pass through the roll gap, and repeatedly performing thin-pass for three times;
3) 100 parts of polyurethane rubber is put into an open mill, the roller distance of the open mill is ensured to be 0.7mm, 100 parts of polyurethane rubber directly falls on a material receiving disc without wrapping a roller after passing through a roller space, after 100 parts of polyurethane rubber completely passes through the roller distance, 100 parts of polyurethane rubber returns to the upper part of the roller distance to pass through the roller distance again, and the thin passing is repeated for five times;
4) mixing 140 parts of thin-passing natural fluororubber, 100 parts of polyurethane rubber and 50 parts of chloroprene rubber, adding 30 parts of barium sulfate, 7 parts of accelerator, 7 parts of coupling agent and 5 parts of activator, melting at high temperature, and stirring and mixing to obtain mixed rubber 1;
5) putting the mixed rubber 1 into an open mill, ensuring that the roll gap of the open mill is 0.7mm, directly dropping the mixed rubber 1 on a receiving tray without wrapping a roll after the mixed rubber 1 passes through the roll gap, returning the mixed rubber 1 above the roll gap to pass through the roll gap again after the mixed rubber 1 passes through the roll gap, and repeatedly performing thin passing for three times;
6) 30 parts of ethanol, 20 parts of carbon black, 100 parts of deionized water, 3 parts of microcrystalline wax, 7 parts of asphalt and 4 parts of paraffin are added into the mixed rubber 1 which is thinned and passed through three times, and the mixture is melted at high temperature, stirred, mixed and extruded to form the rubber regulating sheet.
The invention has the beneficial effects that: the rubber regulating sheet and the preparation method thereof are characterized in that 100-140 parts of thin-passing natural fluororubber, 80-100 parts of polyurethane rubber and 30-50 parts of chloroprene rubber are mixed, 10-30 parts of barium sulfate, 2-7 parts of accelerator, 5-7 parts of coupling agent and 3-5 parts of activator are added, the mixture is stirred and mixed after high-temperature melting to obtain mixed rubber 1, the mixed rubber 1 is put into an open mill, the roller distance of the open mill is ensured to be 0.7mm, the mixed rubber 1 directly falls on a receiving disc without wrapping a roller after passing through a roller space, the mixed rubber 1 returns to the position above the roller space to pass through the roller space again after passing through the roller space, the thin-passing is repeated for three times, 20-30 parts of ethanol, 10-20 parts of carbon black, 50-100 parts of deionized water, 1-3 parts of microcrystalline wax, and the mixed rubber 1 which is thin-passed for three times is added with the mixture, 5-7 parts of asphalt and 2-4 parts of paraffin, stirring and mixing after high-temperature melting, and then carrying out extrusion forming to obtain the rubber regulating sheet, wherein the prepared rubber regulating sheet has good oxidation resistance and greatly prolonged service life, 140 parts of natural fluororubber 100-containing material is put into an open mill to ensure that the roll spacing of the open mill is 0.7mm, 140 parts of natural fluororubber 100-containing material directly falls on a receiving disc without wrapping a roll after passing through the roll spacing, 140 parts of natural fluororubber 100-containing material returns to the position above the roll spacing to pass through the roll spacing again after 140 parts of natural fluororubber 100-containing material pass through the roll spacing, carrying out thin pass for six times, putting 30-50 parts of chloroprene rubber into the open mill to ensure that the roll spacing of the open mill is 0.7mm, directly falling on the receiving disc without wrapping the roll after 30-50 parts of chloroprene rubber passes through the roll spacing, and 30-50 parts of the natural fluororubber all pass through the roll spacing, 30-50 parts of chloroprene rubber is returned to the position above the roller spacing to pass through the roller spacing again, thinning is carried out for three times in this way, 80-100 parts of polyurethane rubber is put into the open mill, the roller spacing of the open mill is ensured to be 0.7mm, 80-100 parts of polyurethane rubber directly falls on a receiving tray without wrapping the roller after passing through the roller spacing, 80-100 parts of polyurethane rubber is returned to the position above the roller spacing to pass through the roller spacing again after passing through the roller spacing, thinning is carried out for five times in this way, the ductility of the rubber is improved to a certain extent, the use by a user is further facilitated, and the problems that the traditional rubber has general oxidation resistance and short service life when being used as a rubber regulating sheet material are solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The rubber adjusting sheet is characterized by comprising the following raw materials in parts by weight: 100-140 parts of natural fluorine rubber, 80-100 parts of polyurethane rubber, 30-50 parts of chloroprene rubber, 20-30 parts of ethanol, 10-20 parts of carbon black, 50-100 parts of deionized water, 1-3 parts of microcrystalline wax, 5-7 parts of asphalt, 2-4 parts of paraffin, 10-30 parts of barium sulfate, 2-7 parts of an accelerator, 5-7 parts of a coupling agent and 3-5 parts of an active agent.
2. The rubber conditioning sheet of claim 1, wherein the accelerator is 2-7 parts of one or a mixture of two of dicumyl peroxide and triallyl isocyanurate.
3. The rubber adjustment sheet according to claim 1, wherein the activator is one or a mixture of zinc oxide and magnesium oxide in 3-5 parts, and the coupling agent is a silane coupling agent in 5-7 parts.
4. The preparation method of the rubber adjusting sheet is characterized by comprising the following steps of:
1) putting 140 parts of 100-fold natural fluorine rubber into an open mill, ensuring that the roller distance of the open mill is 0.7mm, directly dropping the 140 parts of the 100-fold natural fluorine rubber on a receiving tray without wrapping a roller after the 140 parts of the 100-fold natural fluorine rubber pass through the roller distance, returning the 140 parts of the 100-fold natural fluorine rubber to the upper part of the roller distance to pass through the roller distance again after the 140 parts of the 100-fold natural fluorine rubber pass through the roller distance, and repeatedly carrying out thin passing for six times;
2) 30-50 parts of chloroprene rubber is put into an open mill, the roller spacing of the open mill is ensured to be 0.7mm, 30-50 parts of chloroprene rubber directly falls on a material receiving disc without wrapping a roller after passing through the roller spacing, and after 30-50 parts of chloroprene rubber completely passes through the roller spacing, 30-50 parts of chloroprene rubber returns to the position above the roller spacing and passes through the roller spacing again, and the thin passing is repeated for three times;
3) 80-100 parts of polyurethane rubber is put into an open mill, the roller distance of the open mill is ensured to be 0.7mm, 80-100 parts of polyurethane rubber directly falls on a material receiving disc without wrapping a roller after passing through the roller distance, 80-100 parts of polyurethane rubber returns to the upper part of the roller distance to pass through the roller distance again after 80-100 parts of polyurethane rubber passes through the roller distance, and the thin passing is repeated for five times;
4) mixing 100-140 parts of thin-passing natural fluororubber, 80-100 parts of polyurethane rubber and 30-50 parts of chloroprene rubber, adding 10-30 parts of barium sulfate, 2-7 parts of accelerator, 5-7 parts of coupling agent and 3-5 parts of activator, melting at high temperature, stirring and mixing to obtain mixed rubber 1;
5) putting the mixed rubber 1 into an open mill, ensuring that the roll gap of the open mill is 0.7mm, directly dropping the mixed rubber 1 on a receiving tray without wrapping a roll after the mixed rubber 1 passes through the roll gap, returning the mixed rubber 1 above the roll gap to pass through the roll gap again after the mixed rubber 1 passes through the roll gap, and repeatedly performing thin passing for three times;
6) adding 20-30 parts of ethanol, 10-20 parts of carbon black, 50-100 parts of deionized water, 1-3 parts of microcrystalline wax, 5-7 parts of asphalt and 2-4 parts of paraffin into the mixed rubber 1 which is thinned and passed through three times, melting at high temperature, stirring, mixing, and carrying out extrusion forming to obtain the rubber regulating sheet.
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| US20080097023A1 (en) * | 2004-06-01 | 2008-04-24 | Yoshihiro Kameda | Rubber Composition for Tire and Pneumatic Tire Made Therefrom |
| WO2007114062A1 (en) * | 2006-03-29 | 2007-10-11 | Zeon Corporation | Rubber composition and crosslinked rubber product |
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