CN1029685C - Producing method for rubber slurry using water as solvent - Google Patents
Producing method for rubber slurry using water as solvent Download PDFInfo
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- CN1029685C CN1029685C CN 92113040 CN92113040A CN1029685C CN 1029685 C CN1029685 C CN 1029685C CN 92113040 CN92113040 CN 92113040 CN 92113040 A CN92113040 A CN 92113040A CN 1029685 C CN1029685 C CN 1029685C
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- rubber
- water
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- slurry
- rubber slurry
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Abstract
The present invention discloses a method for producing rubber slurry by using water as a solvent. The technological method is slightly adjusted on the basis of a traditional solvent rubber slurry formula, a proper number of dispersion stabilizers, thickening agents, acid base regulating agents, emulsifying agents, etc. are added to be roughly refined, tightly penetrated and refined in a mixing mode by a traditional technology, and dispersion medium ammonia water is directly added on a rubber refining machine to form the water rubber slurry. The present invention has the characteristics of simple technological process, short production period, low production cost, strong adhesive force of a product, safe production and use, no pollution, strong adaptability, etc. Especially, water is used for replacing the solvent gasoline or toluene dispersoid colloid. The present invention has good economical and social benefits.
Description
The present invention relates to a kind of with production technique natural or the organic adhesive component tackiness agent of synthetic rubber, especially a kind of manufacture method of rubber slurry using water as solvent.
Rubber slurry using mainly is used as the tackiness agent of rubber and fabric or metal, non-metallic material, all will use rubber cement bonding as producing in the product processes such as sebific duct, adhesive tape, rubber overshoes.Existing rubber cement is divided into natural or two types of synthetic latex and solvent rubber cements.The former claims the latex rubber cement again, be in natural or synthetic latex, to add a small amount of Synergist S-421 95 to make, need in its course of processing to grind dispersion for a long time with ball mill, product is to temperature, and the susceptibility of humidity is stronger, less stable, and because of being difficult for adding various strengthening agents, weighting agent and other auxiliary agent, thereby can not adapt to the multiple technologies requirement, use few at present.Heilungkiang science tech publishing house discloses the concrete prescription of a series of rubber items with rubber cement and tackiness agent in " the practical chemistry formulary " published in 1988, they all are to make rubber unvulcanizate by rubber, and then the solvent rubber cement of its dissolving being made with organic solvent.Its production process is mainly the sizing material preparation and rubber cement prepares two procedures, and the former comprises the mixing of batching, and the latter then is the broken and dipping dissolving of sizing material, and used solvent mostly is gasoline, toluene etc.This production rubber cement technology is more numerous and diverse, and the production cycle is longer, and production cost is higher, especially solvent for use be volatile, combustible material, the certain toxicity of also tool that has give to be produced and use brings unsafe factor, also environment is caused certain pollution.Therefore, seeking the material and the corresponding technology that substitute conventional solvent is technical problem anxious to be solved.
Purpose of the present invention just is to overcome the deficiencies in the prior art, and it is more simple to seek and propose a kind of manufacturing process, and the production cycle is shorter, and it is lower to produce this one-tenth, and quality is good, safe in utilization, convenient rubber slurry using water as solvent manufacture method free from environmental pollution again.
Purpose of the present invention can reach by implementing following technical proposal.With conventional solvent rubber cement prescription is that the basis is suitably adjusted, and synthetic or natural rubber metering by 100 weight parts, adding is as animal or plant sodium oleate 5～10 weight parts of dispersion stabilizer, as gelatin or cruel element or peach gum 2～6 weight parts and acid-base modifier 0.2～0.4 weight part and emulsifying agent 1～2 weight part of thickening material.Carry out thin-pass and mixing according to traditional rubber mixing technique in rubber mixing machine or Banbury mixer, its order of addition(of ingredients) is with reference to traditional technology, but adds the dispersion stabilizer sodium oleate after adding tenderizer, and then adds acid-base modifier and emulsifying agent respectively.Rubber unvulcanizate after mixing was parked more than six hours, again in rubber mixing machine or Banbury mixer with thickening material thin-pass 2～4 times, add simultaneously vulcanizing agent and an amount of ammonia soln of preparing with deionized water gradually as dispersion medium, up to the homogeneous phase rubber cement liquid that forms the concentration that requires, its pH value should be controlled between 7～10.
The present invention also can obtain better effect by following technical measures:
(1) in blending process, adopt vegetable oil acid sodium as dispersion stabilizer
(2) in blending process, use gelatin as thickening material.
(3) in blending process, be acid-base modifier, adjust the pH value of the dark liquid of rubber cement with sodium hydroxide.
(4) in blending process, add fatty alcohol-polyoxyethylene ether (polyoxyethylene nonylphenol ether) as emulsifying agent.
(5) progressively adding 5% deionization ammonia soln in glue slurry process, is 1: 0.5～3 for good with the ratio of rubber unvulcanizate and ammoniacal liquor.
(6) in glue slurry process, preferably its pH value is controlled between 8～9, is convenient to rubber cement and is more steady state.
The invention will be further described below in conjunction with embodiment.Prepare burden with weight part by following prescription:
Through the natural broken-(down)rubber 12.000 of the 2# of 4 sections thin-passes
Sulfur 0.122
2-benzothiazolyl mercaptan (captax) 0.108
Zinc oxide 0.243
Stearic acid 0.026
White carbon black 1.805
N-Phenyl beta naphthylamine (antioxidant D) 0.124
Lime carbonate 6.015
Machine oil 0.240
Vegetable oil acid sodium 0.961
Sodium hydroxide 0.032
Gelatin 0.483
Fatty alcohol-polyoxyethylene ether (polyoxyethylene nonylphenol ether) 0.125
On opening rubber mixing machine, carry out mastication, thin-pass, mixing with common process.After adding tenderizer machine oil, add vegetable oil acid sodium, and then add sodium hydroxide, emulsifying agent respectively, about 30 minutes of mixing time, and park more than 6 hours.In same rubber mixing machine rubber unvulcanizate is carried out thin-pass 3 times with gelatin, add 5% deionized water solution and Sulfur gradually, till making rubber cement reach desired concentration, its pH value should be controlled at about 8～9.5% ammoniacal liquor that the gained rubber cement also can add any ratio as required again dilutes.This aqueous dispersion type rubber cement can be widely used in sebific duct, bonding as between braiding or the winding layer or between they and the glue-line in rubber overshoes and other technical rubber goods.
The present invention has following characteristics compared with prior art:
(1) technological process is simple, with short production cycle. This production technology only needs just to finish the sizing material preparation in rubber mixing machine and rubber cement prepares two procedures, by the broken course of dissolution of sizing material sulphur, has not shortened the production cycle.
(2) production cost is low, and economical, societal benefits are better. Owing to replace traditional industrial naptha or toluene with water, greatly reduce production cost, saved the energy, calculate as 2 centimetres braided construction hose 200 myriametres to produce internal diameter per year, can save 300 tons in No. 120 gasoline every year, 600,000 yuan in meter coin.
(3) product strong adhesion, safety in utilization is good. Because the water dispersible rubber cement is easily regulated viscosity, good penetrability. Bonding adhesive force is stronger. Do not contain the effumability solvent, the problem that when producing, transporting and using, all can not burn, pollute in addition.
(4) strong adaptability, applied range. When implementing this process, can be mixed with various different technologies according to different purposes and needs and require water dispersible rubber cement with type, such as the light water rubber cement, oil resistant glue slurry, heat-resisting glue slurry and acid and alkali-resistance glue slurry etc., even can directly produce rubber water-proof paint, and be used for being coated on the surface of building, play weather-proof, anticorrosion, waterproof, moistureproof effect.
Claims (4)
1, a kind of manufacture method of rubber slurry using water as solvent, on the basis of conventional solvent rubber cement prescription, to synthesize or natural rubber and each relevant auxiliary agent routinely technology carry out thin-pass, mixing, it is characterized in that adding the mixing back of tenderizer and add dispersion stabilizer, and then add acid-base modifier and emulsifying agent respectively, rubber unvulcanizate through after parking more than six hours again with thickening material thin-pass 2～4 times, add simultaneously vulcanizing agent and dispersion medium deionization ammonia soln gradually, up to the homogeneous phase rubber cement liquid that forms the concentration that requires, its pH value should be controlled between 7～10.
2, rubber slurry using water as solvent manufacture method according to claim 1 is characterized in that dispersion medium is 5% deionization ammonia soln.
3, rubber slurry using water as solvent manufacture method according to claim 1 and 2, the weight ratio that it is characterized in that rubber unvulcanizate and dispersion medium is 1: 0.5～3.
4, rubber slurry using water as solvent manufacture method according to claim 1 and 2 is characterized in that the pH value of made glue slurry is controlled at 8～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113040 CN1029685C (en) | 1992-11-05 | 1992-11-05 | Producing method for rubber slurry using water as solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113040 CN1029685C (en) | 1992-11-05 | 1992-11-05 | Producing method for rubber slurry using water as solvent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1072688A CN1072688A (en) | 1993-06-02 |
| CN1029685C true CN1029685C (en) | 1995-09-06 |
Family
ID=4946222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113040 Expired - Fee Related CN1029685C (en) | 1992-11-05 | 1992-11-05 | Producing method for rubber slurry using water as solvent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1029685C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387641B (en) * | 2014-12-17 | 2016-06-01 | 江西省万载橡塑有限公司 | A kind of modified rubber powder and its preparation method |
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1992
- 1992-11-05 CN CN 92113040 patent/CN1029685C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1072688A (en) | 1993-06-02 |
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