CN105623000A - Clamping cloth diaphragm material for pneumatic brake chamber and preparation method for material - Google Patents
Clamping cloth diaphragm material for pneumatic brake chamber and preparation method for material Download PDFInfo
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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
- C08L7/00—Compositions of natural rubber
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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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2307/00—Characterised by the use of natural rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention relates to a clamping cloth diaphragm material for a pneumatic brake chamber, and belongs to the technical field of automobile brake systems. The clamping cloth diaphragm material comprises NR (natural rubber), an activator, a flow additive, an antioxidant, a plasticizer, a reinforcing agent and a vulcanizing agent. The clamping cloth diaphragm material is characterized by being prepared by mixing the following components in parts by weight: 80-120 parts of the NR, 2-7 parts of the activator, 1-3 parts of the flow additive, 0-1 part of the antioxidant, 5-15 parts of the plasticizer, 60-80 parts of the reinforcing agent and 3-6 parts of the vulcanizing agent. The clamping cloth diaphragm material obtained according to the technical scheme has the characteristics of high strength, good tear resistance, high low-temperature flexibility and high processing safety, and the adhesiveness between the material and clamping cloth is very good, so that the seal property and sensitivity of braking are enhanced, the durability of a clamping cloth diaphragm product is improved, and the service life of a brake is prolonged. The invention further provides a preparation method for the clamping cloth diaphragm material.
Description
Technical field
The present invention relates to a kind of gas braking air chamber folder cloth diaphragm material, and the preparation method of this material, belong to brake system of car technical field.
Background technology
The various Medium or severe type brake system of car of weight-carrying capacity more than 3 tons are all provided with braking gas cell device, for providing power-assisted when officer brakes, rubber fabric clamped film sheet is the core part in automotive brake component, such diaphragm generally adopts rubber and fabric to make, playing and transmit pressure effect, braking air chamber braking ability is played a decisive role by diaphragm. Not only to be born higher air pressure, it is necessary to possessing the durable ability of permanent work, its performance is directly connected to vehicle safety.
Air chamber diaphragm requires the high atmospheric pressure of resistance to about 0.8MPa, ensures the work-ing life of more than 1,000,000 times. When using air chamber diaphragm, automobile produces the high atmospheric pressure of about 0.8MPa when braking, and this air pressure promotes air chamber folder cloth diaphragm and then driven forward push rod, impellent is finally passed to the brake paster in wheel drum and reaches the object of brake. Such domestic diaphragm of the prior art does not adopt rubber and folder cloth adhering technique, skin film works and just occurs coming unstuck after for some time, even there is the phenomenon of cracking, seriously affect braking sealing, and such diaphragm preparation process mostly adopts common carbon black, durability of product and wear resistance are poor, and product life is short.
Summary of the invention
For solving problems of the prior art, the present invention provide there is high strength, high anti tear, low temperature flexibility is good, processing safety is good and and press from both sides the folder cloth diaphragm material between cloth with excellent cohesiveness, concrete technical scheme is as follows:
A kind of gas braking air chamber folder cloth diaphragm material, this folder cloth diaphragm material comprises NR rubber, promoting agent, flow promotor, antioxidant, softening agent, strengthening agent and vulcanizing agent, it is characterised in that, said components is according to following weight part number:
NR rubber 80 parts��120 parts
Promoting agent 2 parts��7 parts
Flow promotor 1 part��3 parts
Antioxidant 0 part��1 part
5 parts��15 parts, softening agent
Strengthening agent 60 parts��80 parts
Vulcanizing agent 3 parts��6 parts
Carry out mixing preparation.
As the improvement of technique scheme, in described folder cloth diaphragm material, the weight part number of each component is followed successively by NR rubber 100 parts, promoting agent 5 parts, flow promotor 2 parts, antioxidant 0.5 part, 8 parts, softening agent, strengthening agent 70 parts, vulcanizing agent 4 parts.
As the improvement of technique scheme, described folder cloth diaphragm material also comprises anti-aging agent, processing aid and promotor.
As the improvement of technique scheme, described promoting agent is zinc oxide and/or magnesium oxide; Described flow promotor is paraffin class flow promotor; Described antioxidant is sulphur generation sub-amides oxidation inhibitor; Described softening agent is high-purity linear-chain hydrocarbon plasticizer; Described strengthening agent is carbon black FEF and/or mineral filler calcium carbonate; Described vulcanizing agent is sulphur or superoxide.
The folder cloth diaphragm material that technique scheme obtains not only has high strength, high anti tear, low temperature flexibility is good, processing safety is good feature, and the cohesiveness between material and folder cloth is also very good, thus enhance braking sealing and susceptibility, it is to increase the endurance quality of folder cloth membrane products and use longevity of stopper.
Present invention also offers the preparation method of a kind of gas braking air chamber folder cloth diaphragm material, comprise the following steps: step one, once mixing; Step 2, two times are mixing;
In described step one, by weight part number be the NR rubber of 80 parts��120 parts, the promoting agent of 2 parts��7 parts, the flow promotor of 1 part��3 parts, the antioxidant of 0 part��1 part, the softening agent of 5 parts��15 parts and 60 parts��80 parts strengthening agent mix after put into banburying equipment to carry out first time mixing, then arrange glue slice, obtain a rubber unvulcanizate;
In described step 2, it is put into weight part number banburying equipment after the vulcanizing agent of 3 parts��6 parts mixes with the rubber unvulcanizate obtained in step one to carry out second time mixing, obtain two rubber unvulcanizates, store after then arranging glue slice, cooling, obtain gas braking air chamber folder cloth diaphragm material.
As the improvement of technique scheme, in described step one, once mixing point of three steps carry out:
(1) first stage throws material, first puts into NR rubber in banburying equipment;
(2) subordinate phase throws material, then puts into promoting agent, flow promotor, antioxidant and part strengthening agent in banburying equipment;
(3) phase III throws material, puts into another part strengthening agent and softening agent in the most backward banburying equipment.
As the improvement of technique scheme, the subordinate phase of described step one is thrown in material, and wherein part strengthening agent is mineral filler calcium carbonate; The phase III of described step one throws in material, and wherein another part strengthening agent is carbon black FEF.
As the improvement of technique scheme, the first stage feed temperature of described step one is 58 DEG C��62 DEG C, and after first stage throwing material completes, 45s��51s carries out subordinate phase throwing material, and phase III feed temperature is 103 DEG C��107 DEG C.
As the improvement of technique scheme, in described step one, a mixing time is 240s��260s, and the dump temperature after once mixing is 127 DEG C��133 DEG C.
As the improvement of technique scheme, in described step 2, two mixing times are 100s��120s, and two times melting temperature is 68 DEG C��72 DEG C, two times mixing after dump temperature be 103 DEG C��107 DEG C.
The folder cloth diaphragm material excellent physical properties that technique scheme is obtained, the cohesiveness between product and folder cloth is good, and preparation technology is succinct, is worth Industry Promotion application, wide market.
Embodiment
The present invention provides a kind of gas braking air chamber folder cloth diaphragm material, and this folder cloth diaphragm material comprises NR rubber, promoting agent, flow promotor, antioxidant, softening agent, strengthening agent and vulcanizing agent, it is characterised in that, said components is according to following weight part number:
NR rubber 80 parts��120 parts
Promoting agent 2 parts��7 parts
Flow promotor 1 part��3 parts
Antioxidant 0 part��1 part
5 parts��15 parts, softening agent
Strengthening agent 60 parts��80 parts
Vulcanizing agent 3 parts��6 parts
Carrying out mixing preparation, above-mentioned each component concentration is preferably NR rubber 100 parts, promoting agent 5 parts, flow promotor 2 parts, antioxidant 0.5 part, 8 parts, softening agent, strengthening agent 70 parts, vulcanizing agent 4 parts. The folder cloth diaphragm material that this technical scheme obtains not only has high strength, high anti tear, low temperature flexibility is good, processing safety is good feature, and the cohesiveness between material and folder cloth is also very good, thus enhance braking sealing and susceptibility, it is to increase the endurance quality of folder cloth membrane products and use longevity of stopper.
Further, described folder cloth diaphragm material can add appropriate anti-aging agent, processing aid and promotor according to the performance demand of product, these additives are comparatively general in existing diaphragm production technique, thus can with reference to the adding proportion adopted in prior art.
In such scheme, NR rubber and natural rubber, the high-quality natural gum that preferential impurity is low;
Described promoting agent can adopt zinc oxide and/or magnesium oxide, it is preferable to by the high-active zinc oxide of high surface area prepared by the precipitator method, active zinc flower can reduce the ratio of Zn element in material, decreases the formation speed of mould dirt;
Described flow promotor is paraffin class flow promotor, and described antioxidant is sulphur generation sub-amides oxidation inhibitor, and both are in prior art common additives;
Described softening agent is high-purity linear-chain hydrocarbon plasticizer, and the dynamic elastic modulus impact under cryogenic of such softening agent is very little, thus improves the low temperature flexibility of folder cloth diaphragm;
Described strengthening agent is carbon black FEF and/or mineral filler calcium carbonate, it is preferable to the mixture of carbon black FEF and mineral filler calcium carbonate, and wherein carbon black FEF has good reinforcing effect, and mineral filler calcium carbonate has good bonding effect;
Described vulcanizing agent is sulphur or superoxide, it is preferable to sulphur, and relatively superoxide security is higher, the insoluble sulfur that sulphur selects dispersion effect good.
Present invention also offers the preparation method of a kind of gas braking air chamber folder cloth diaphragm material, comprise the following steps: step one, once mixing:
(1) first stage throws material, first puts into the NR rubber of 80 parts��120 parts in banburying equipment, and this stage feed temperature is 58 DEG C��62 DEG C;
(2) subordinate phase throws material, after first stage throwing material completes, 45s��51s carries out subordinate phase throwing material, guarantee to throw in the timed interval of material and subordinate phase throwing material in the first stage, NR rubber is plasticated process at banburying equipment, and then puts into the promoting agent of 2 parts��7 parts, the flow promotor of 1 part��3 parts, the antioxidant of 0 part��1 part and part strengthening agent in banburying equipment;
(3) phase III throws material, the most backward banburying equipment is put into another part strengthening agent and 5 parts��15 parts softening agent, wherein this stage throws material and has 60 parts��80 parts with subordinate phase throwing material MR medium reinforcing agent, the feed temperature in this stage is 103 DEG C��107 DEG C, this three phases mixing time generally is 240s��260s, then arranging glue slice, dump temperature is 127 DEG C��133 DEG C, obtains a rubber unvulcanizate;
Step 2, two times are mixing:
It is put into weight part number banburying equipment after the vulcanizing agent of 3 parts��6 parts mixes with the rubber unvulcanizate obtained in step one to carry out second time mixing, obtain two rubber unvulcanizates, two mixing times are 100s��120s, two times melting temperature is 68 DEG C��72 DEG C, then glue slice is arranged, dump temperature is 103 DEG C��107 DEG C, stores after cooling, obtains gas braking air chamber folder cloth diaphragm material.
Further, the subordinate phase in above-mentioned preparation method's step one is thrown in material, selects separately mineral filler calcium carbonate as strengthening agent, throws in material in the phase III, selects separately carbon black FEF as strengthening agent, it is to increase the reinforcing effect of material.
The folder cloth diaphragm material excellent physical properties that above-mentioned preparation method obtains, the cohesiveness between product and folder cloth is good, and preparation technology is succinct, is worth Industry Promotion application, wide market.
Below in conjunction with specific embodiment, the present invention will be described in detail.
Embodiment one
Carry out pressing from both sides the preparation of cloth diaphragm material in accordance with the following methods:
Step one, once mixing:
(1) first stage throws material, first puts into 80 parts of NR rubbers in banburying equipment, and this stage feed temperature is 58 DEG C;
(2) subordinate phase throws material, and after first stage throwing material completes, 51s carries out subordinate phase throwing material, and then puts into 7 parts of active zinc flowers, 1 part of flow promotor, 0.5 part of antioxidant and 15 parts of mineral filler calcium carbonate in banburying equipment;
(3) phase III throws material, puts into 45 parts of carbon black FEF and 5 part of softening agent in the most backward banburying equipment, and the feed temperature in this stage is 103 DEG C, this three phases mixing time generally is 240s, then arrange glue slice in 127 DEG C, store after cooling, obtain a rubber unvulcanizate;
Step 2, two times are mixing:
Putting into banburying equipment with the rubber unvulcanizate obtained in step one after 6 parts of insoluble sulfur agents being mixed carries out mixing for the second time, obtain two rubber unvulcanizates, two mixing times are 120s, two times melting temperature is 68 DEG C, glue slice is arranged when temperature reaches 107 DEG C, store after cooling, obtain gas braking air chamber folder cloth diaphragm material.
Embodiment two
Carry out pressing from both sides the preparation of cloth diaphragm material in accordance with the following methods:
Step one, once mixing:
(1) first stage throws material, first puts into 100 parts of NR rubbers in banburying equipment, and this stage feed temperature is 60 DEG C;
(2) subordinate phase throws material, and after first stage throwing material completes, 48s carries out subordinate phase throwing material, and then puts into 5 parts of active zinc flowers, 2 parts of derivative of fatty acid class flow promotors, 0.5 part of antioxidant and 10 parts of mineral filler calcium carbonate in banburying equipment;
(3) phase III throws material, puts into 60 parts of carbon black FEF and 8 part of softening agent in the most backward banburying equipment, and the feed temperature in this stage is 105 DEG C, this three phases mixing time generally is 250s, then arrange glue slice in 130 DEG C, store after cooling, obtain a rubber unvulcanizate;
Step 2, two times are mixing:
Putting into banburying equipment with the rubber unvulcanizate obtained in step one after 4 parts of insoluble sulfur agents being mixed carries out mixing for the second time, obtain two rubber unvulcanizates, two mixing times are 110s, two times melting temperature is 70 DEG C, glue slice is arranged when temperature reaches 105 DEG C, store after cooling, obtain gas braking air chamber folder cloth diaphragm material.
Embodiment three
Carry out pressing from both sides the preparation of cloth diaphragm material in accordance with the following methods:
Step one, once mixing:
(1) first stage throws material, first puts into 120 parts of NR rubbers in banburying equipment, and this stage feed temperature is 62 DEG C;
(2) subordinate phase throws material, and after first stage throwing material completes, 45s carries out subordinate phase throwing material, and then puts into 2 parts of active zinc flowers, 3 parts of derivative of fatty acid class flow promotors, 0 part of antioxidant and 10 parts of mineral filler calcium carbonate in banburying equipment;
(3) phase III throws material, puts into 65 parts of carbon black FEF and 15 part of softening agent in the most backward banburying equipment, and the feed temperature in this stage is 107 DEG C, this three phases mixing time generally is 260s, then arrange glue slice in 133 DEG C, store after cooling, obtain a rubber unvulcanizate;
Step 2, two times are mixing:
Putting into banburying equipment with the rubber unvulcanizate obtained in step one after 3 parts of insoluble sulfur agents being mixed carries out mixing for the second time, obtain two rubber unvulcanizates, two mixing times are 100s, two times melting temperature is 72 DEG C, glue slice is arranged when temperature reaches 103 DEG C, store after cooling, obtain gas braking air chamber folder cloth diaphragm material.
By gas braking air chamber obtained for embodiment one to three with folder cloth diaphragm material according to folder cloth skin film universal standard test, its test result is such as following table 1:
Table 1 gas braking air chamber folder cloth diaphragm material quantitative measurement result
Although the numerical range of each processing parameter involved in the present invention can not all embody in the above-described embodiments, as long as but the technician of this area can imagine that any numerical value fallen in this numerical range above-mentioned all can implement the present invention completely, certainly also comprise the arbitrary combination of concrete value in some numerical ranges. Herein, for the consideration of length, eliminate the embodiment providing concrete value in certain one or more numerical range, should not be considered as the claimed formula of the technical scheme to the present invention and the understanding of the sufficient embodiment support of processing range shortage at this.
Applicant states, the present invention illustrates the detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, namely do not mean that the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement. Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (10)
1. a gas braking air chamber folder cloth diaphragm material, this folder cloth diaphragm material comprises NR rubber, promoting agent, flow promotor, antioxidant, softening agent, strengthening agent and vulcanizing agent, it is characterised in that, said components is according to following weight part number:
NR rubber 80 parts��120 parts
Promoting agent 2 parts��7 parts
Flow promotor 1 part��3 parts
Antioxidant 0 part��1 part
5 parts��15 parts, softening agent
Strengthening agent 60 parts��80 parts
Vulcanizing agent 3 parts��6 parts
Carry out mixing preparation.
2. a kind of gas braking air chamber folder cloth diaphragm material as claimed in claim 1, it is characterized in that, in described folder cloth diaphragm material, the weight part number of each component is followed successively by NR rubber 100 parts, promoting agent 5 parts, flow promotor 2 parts, antioxidant 0.5 part, 8 parts, softening agent, strengthening agent 70 parts, vulcanizing agent 4 parts.
3. a kind of gas braking air chamber folder cloth diaphragm material as claimed in claim 1, it is characterised in that, described folder cloth diaphragm material also comprises anti-aging agent, processing aid and promotor.
4. as according to any one of claim 1-3 a kind of gas braking air chamber press from both sides cloth diaphragm material, it is characterised in that, described promoting agent is zinc oxide and/or magnesium oxide; Described flow promotor is paraffin class flow promotor; Described antioxidant is sulphur generation sub-amides oxidation inhibitor; Described softening agent is high-purity linear-chain hydrocarbon plasticizer; Described strengthening agent is carbon black FEF and/or mineral filler calcium carbonate; Described vulcanizing agent is sulphur or superoxide.
5. according to any one of claim 1-4 a kind of gas braking air chamber press from both sides cloth diaphragm material a preparation method, comprise the following steps: step one, once mixing; Step 2, two times are mixing; It is characterized in that,
In described step one, by weight part number be the NR rubber of 80 parts��120 parts, the promoting agent of 2 parts��7 parts, the flow promotor of 1 part��3 parts, the antioxidant of 0 part��1 part, the softening agent of 5 parts��15 parts and 60 parts��80 parts strengthening agent mix after put into banburying equipment to carry out first time mixing, then arrange glue slice, obtain a rubber unvulcanizate;
In described step 2, it is put into weight part number banburying equipment after the vulcanizing agent of 3 parts��6 parts mixes with the rubber unvulcanizate obtained in step one to carry out second time mixing, obtain two rubber unvulcanizates, store after then arranging glue slice, cooling, obtain gas braking air chamber folder cloth diaphragm material.
6. preparation method as claimed in claim 5, it is characterised in that, in described step one, once mixing point of three steps carry out:
(1) first stage throws material, first puts into NR rubber in banburying equipment;
(2) subordinate phase throws material, then puts into promoting agent, flow promotor, antioxidant and part strengthening agent in banburying equipment;
(3) phase III throws material, puts into another part strengthening agent and softening agent in the most backward banburying equipment.
7. preparation method as claimed in claim 6, it is characterised in that, the subordinate phase of described step one is thrown in material, and wherein part strengthening agent is mineral filler calcium carbonate; The phase III of described step one throws in material, and wherein another part strengthening agent is carbon black FEF.
8. preparation method as claimed in claim 6, it is characterised in that, the first stage feed temperature of described step one is 58 DEG C��62 DEG C, and after first stage throwing material completes, 45s��51s carries out subordinate phase throwing material, and phase III feed temperature is 103 DEG C��107 DEG C.
9. preparation method as claimed in claim 8, it is characterised in that, in described step one, a mixing time is 240s��260s, and the dump temperature after once mixing is 127 DEG C��133 DEG C.
10. preparation method as claimed in claim 9, it is characterised in that, in described step 2, two mixing times are 100s��120s, and two times melting temperature is 68 DEG C��72 DEG C, two times mixing after dump temperature be 103 DEG C��107 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177935.6A CN105623000A (en) | 2016-03-25 | 2016-03-25 | Clamping cloth diaphragm material for pneumatic brake chamber and preparation method for material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177935.6A CN105623000A (en) | 2016-03-25 | 2016-03-25 | Clamping cloth diaphragm material for pneumatic brake chamber and preparation method for material |
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| CN105623000A true CN105623000A (en) | 2016-06-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497091A (en) * | 2016-11-18 | 2017-03-15 | 无锡明盛纺织机械有限公司 | A kind of folder cloth diaphragm material and preparation method thereof |
| CN106674633A (en) * | 2016-12-23 | 2017-05-17 | 太仓冠联高分子材料有限公司 | Natural rubber material for vacuum pipeline of high-speed rail and preparation method thereof |
| CN109796642A (en) * | 2018-12-21 | 2019-05-24 | 宁国市加能密封件有限公司 | A kind of sewage treatment environmental protection equipment air valve clamping cloth diaphragm material and preparation method thereof |
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| CN102167850A (en) * | 2011-05-23 | 2011-08-31 | 安徽中鼎泰克汽车密封件有限公司 | Rubber spring material for automobile braking double-cavity serial brake valve and preparation method thereof |
| CN102563189A (en) * | 2011-12-23 | 2012-07-11 | 中国航天科技集团公司第六研究院第十一研究所 | Rubber fabric clamped film sheet and manufacturing method thereof |
| CN204267576U (en) * | 2014-10-20 | 2015-04-15 | 德特威勒密封技术（安徽）有限公司 | Automobile brake chamber rubber fabric clamped film sheet |
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| CN102167850A (en) * | 2011-05-23 | 2011-08-31 | 安徽中鼎泰克汽车密封件有限公司 | Rubber spring material for automobile braking double-cavity serial brake valve and preparation method thereof |
| CN102563189A (en) * | 2011-12-23 | 2012-07-11 | 中国航天科技集团公司第六研究院第十一研究所 | Rubber fabric clamped film sheet and manufacturing method thereof |
| CN204267576U (en) * | 2014-10-20 | 2015-04-15 | 德特威勒密封技术（安徽）有限公司 | Automobile brake chamber rubber fabric clamped film sheet |
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| CN106497091A (en) * | 2016-11-18 | 2017-03-15 | 无锡明盛纺织机械有限公司 | A kind of folder cloth diaphragm material and preparation method thereof |
| CN106674633A (en) * | 2016-12-23 | 2017-05-17 | 太仓冠联高分子材料有限公司 | Natural rubber material for vacuum pipeline of high-speed rail and preparation method thereof |
| CN109796642A (en) * | 2018-12-21 | 2019-05-24 | 宁国市加能密封件有限公司 | A kind of sewage treatment environmental protection equipment air valve clamping cloth diaphragm material and preparation method thereof |
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Application publication date: 20160601 |