CN105017701B - A kind of rubber interleaving agent and preparation method thereof - Google Patents

A kind of rubber interleaving agent and preparation method thereof Download PDF

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CN105017701B
CN105017701B CN201510482819.0A CN201510482819A CN105017701B CN 105017701 B CN105017701 B CN 105017701B CN 201510482819 A CN201510482819 A CN 201510482819A CN 105017701 B CN105017701 B CN 105017701B
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parts
rubber
emulsion
agent
interleaving agent
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CN105017701A (en
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刘宇艳
王友善
卢春涛
谢志民
吴松全
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Harbin Institute of Technology
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Harbin Institute of Technology
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Abstract

The invention discloses a kind of rubber interleaving agent and preparation method thereof, the rubber interleaving agent is made up of the raw material of following mass parts:25 40 parts of deionized water, 2 10 parts of synthetic resin emulsion, 14 parts of long-chain fat race carboxylic metallic salt, 13 parts of dispersant, 25 parts of emulsifying agent, 0.2 1 parts of emulsion adjuvant, 0.05 0.25 parts of defoamer, 0.05 0.5 parts of antisettling agent, 0.08 0.14 parts of pH buffer solutions.The rubber interleaving agent safety of the present invention, it is nonpoisonous and tasteless, it is harmless;And product is emulsion, no flying dust is free from environmental pollution, and isolation effect is good, and consumption is few, is particularly suitable for use in rubber and sheet rubber.This interleaving agent finds that contact angle is less than 90 degree, can be very good to disperse in water by measuring contact angle, not because water quality difference produces precipitation.

Description

A kind of rubber interleaving agent and preparation method thereof
Technical field
The invention belongs to rubber chemicals field, it is related to a kind of interleaving agent and preparation method thereof, especially a kind of new type rubber Interleaving agent and preparation method thereof.
Background technology
In rubber production and process, due to its distinctive tack, processing and transport difficult are caused, especially It is that carrying and reprocessing to elastomeric compound and broken-down rubber causes very big trouble, therefore, before sizing material is finally made finished product, As carried with before accumulating elastomeric compound, before extrusion, extrusion and gum stock, last layer isolation can be all applied on corresponding film Agent, to prevent film inter-adhesive.
And so-called rubber interleaving agent be exactly in compounding rubber, go out type during, brushing is attached to film face, makes rubber Film face loses mutual viscosity, it is to avoid the class material for facilitating production operation of sheet rubber adhesion.Its mechanism of action is exactly profit Intersolubility with interleaving agent with rubber in itself differs greatly, when film for rubber dip-coating after interleaving agent, is formed between film for rubber A thin layer of separation layer, stops or slows down inter-adhesive between film and film, to facilitate technical process to operate.
Had to comply with as the material of rubber film isolating agent claimed below:To have certain with the solubility coefficient of rubber Difference;It is safe, non-toxic, to health non-hazardous, environmentally safe, can be formed and isolated on film for rubber surface Layer, to there is good isolation effect;Negative effect to rubber physical and mechanical properties is small;Technological operation is convenient, into This is low.
Conventional sizing material interleaving agent mainly has powdered, solid-like, three kinds of forms of liquid at present.It is powdered using hydrotalcite as Represent, but its isolation effect is poor.Solid-like and liquid release agent main component are fatty acid soaps, by animal fat saponification system , price general charged is relatively low, but isolation effect is poor, and to the performance impact of sizing material than larger, water can be just scattered in by only heating, Surface is relatively slided after the attached interleaving agent of film, and easy chute, causes damp production, production efficiency is obvious after lacing film.Therefore, prepare low The cost high-performance and small interleaving agent of effect on environment is very necessary.
The content of the invention
It is an object of the invention to improve the deficiencies in the prior art there is provided a kind of rubber interleaving agent and preparation method thereof, this The isolation effect of interleaving agent is good, the dispersiveness in the absence of deposited phenomenon, having had in water is diluted with water, to environment and rubber system Product influence is small.
To achieve these goals, the technical solution adopted in the present invention is as follows:
A kind of rubber interleaving agent, is made up of the raw material of following mass parts:25-40 parts of deionized water, synthetic resin emulsion 2- 10 parts, carboxylic metallic salt 1-4 parts of long-chain fat race, 1-3 parts of dispersant, 2-5 parts of emulsifying agent, 0.2-1 parts of emulsion adjuvant, defoamer 0.05-0.25 parts, 0.05-0.5 parts of antisettling agent, 0.08-0.14 parts of pH buffer solutions.
Described synthetic resin emulsion is acrylic emulsion, polyurethanes emulsion, one kind in polyester emulsion or several Kind.
Described long-chain fat race carboxylic metallic salt is zinc stearate, magnesium stearate, odium stearate, one kind of potassium stearate Or it is several.
Described dispersant is NNO, Sodium Polyacrylate, the one or more of polyethenoxy ether class dispersant.
Described emulsifying agent is OP-10, Span 20, Span 60, polysorbas20, polysorbate60, glyceryl monostearate, dodecane The one or more of base sodium sulfonate, neopelex.
Described emulsion adjuvant is polyethylene glycol series, glycerine, glycerine, the one or more of urea.
Described defoamer is one kind in water-soluble silicon class defoamer, tributyl phosphate or modified polyether.
Described pH buffer solutions are sodium bicarbonate solution, sodium carbonate liquor, the one or two of triethylamine solution.
Described antisettling agent is carboxymethyl cellulose, monoethanolamine, hydroxyethyl cellulose, one kind of polyacrylate or several Kind.
The preparation method of above-mentioned rubber interleaving agent, comprises the steps:
Deionized water is added in three-necked flask, is heated up while being stirred makes it stir, at 60-70 DEG C point Not Jia Ru antisettling agent, emulsifying agent, emulsion adjuvant, dispersant, then heat to 75-80 DEG C, low whipping speed is 1000r/min Under conditions of stir 30-40 minute, make its be well mixed, in whipping process addition part defoamer, make its rapid froth breaking, so Synthetic resin emulsion and long-chain fat race carboxylic metallic salt are added afterwards, and (2000-2500r/min) stirring 1.5-2 is small at a high speed for constant temperature When, 40-45 DEG C then is cooled under moderate-speed mixer (600-700r/min), pH buffer solutions is added in whipping process and residue disappears Infusion, makes lather collapse, and finally reacted solution is poured into plastic cup and sealed.
The beneficial effects of the present invention are:
1st, rubber interleaving agent of the invention safety, nonpoisonous and tasteless, harmless;And product is emulsion, no flying dust is not dirty Environment is contaminated, isolation effect is good, and consumption is few, is particularly suitable for use in rubber and sheet rubber.
2nd, this interleaving agent finds that contact angle is less than 90 degree, can be very good to disperse in water by measuring contact angle, not because Water quality difference produces precipitation.
3rd, emulsion particle diameter is small, is concentrated mainly on 10 microns, particle diameter is smaller in theory, emulsion is more stable.
4th, Zeta potential measurement is carried out to emulsion, it is -41.9mV or so to find the current potential of emulsion, by consulting related data It was found that the significance of Zeta potential is that its numerical value is related to the stability of colloidal dispersion.Zeta potential is between particle The measurement of mutually exclusive or attraction intensity.Molecule or dispersed particle are smaller, and Zeta potential (positive or negative) is higher, and system is more steady It is fixed, that is, dissolve or disperse that aggregation can be resisted.Conversely, Zeta potential (positive or negative) is lower, more tends to condense or condense, that is, inhale Gravitation has exceeded repulsive force, disperses destroyed and occurs to condense or condense.Substantially pass between Zeta potential and system stability System is as shown in table 1.
Table 1
Zeta potential (mV) Colloidal stability
0 to ± 5 Rapid condensation or cohesion
± 10 to ± 30 Start to become unstable
± 30 to ± 40 Stability is general
± 40 to ± 60 Preferable stability
More than ± 61 Excellent stability
Brief description of the drawings
Fig. 1 is distributed for emulsion particle diameter;
Fig. 2 is the Zeta potential result of emulsion.
Embodiment
Technical scheme is further described below in conjunction with the accompanying drawings, but is not limited thereto, it is every to this Inventive technique scheme is modified or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, all should be covered In protection scope of the present invention.
Embodiment one:40ml deionized waters are added in three-necked flask, are heated up while being stirred makes it Stir, when temperature is 60-65 DEG C or so, then add antisettling agent hydroxyethyl cellulose, and be stirred continuously, about stir Mix after 15min, add the 2.5g of emulsifying agent Span 60, polysorbate60 1.25g, dispersant NNO 1g or so and emulsion adjuvant the third three Alcohol 0.1g, is stirred 30 minutes at 80 DEG C or so, is well mixed it, and adding 0.06g waterborne organic silicons if foam is more disappears Infusion, makes its rapid froth breaking, then adds acrylic emulsion 3g and zinc stearate 2g, odium stearate 0.5g, constant temperature is at a high speed Stirring 1 and a half hours, is then cooled to 55-60 DEG C or so addition sodium acid carbonate under moderate-speed mixer and sodium carbonate liquor rubs with 1: 1 You, when greenhouse cooling is spent to 45-50, if foam is more, can add 0.06g water-soluble than the buffer solution 0.06g matched somebody with somebody Organic silicon defoamer, makes lather collapse, and finally reacted solution is poured into plastic cup and sealed.
As shown in Figure 1, particle diameter is in the majority in 1-10 micrometer ranges, and particle diameter is smaller, and emulsion intercalation method is better, storage when Between it is longer, application industrially is better.
As shown in Figure 2, Zeta potential is -41.9mV, is arrived between -40 between -60mV, and stability is preferable, and Zeta potential It is the measurement to mutually exclusive between particle or attraction intensity.Molecule or dispersed particle are smaller, Zeta potential (positive or negative) Higher, system is more stable, that is, dissolves or disperse that aggregation can be resisted, so stability is relatively good.
Interleaving agent performance test:
Interleaving agent prepared by the above method is diluted with water, and dilution ratio is respectively 1: 3,1: 10,1: 15,1: 25.Will be mixed The film that 6 sizes are 100mm100mm is made in refining glue, then brushing interleaving agent, made 1-4 interleaving agent brushings respectively Gained film is respectively 1-4 films, and No. 5 film brushing dimethicones, No. 6 film not brushing interleaving agents will be painted with isolation After the film of agent is dried up with hair-dryer, two films are fit together, equably applies certain pressure to it, parks 16h 2 are the results are shown in Table with film disbonded test is carried out after 48h.
Table 2
Although dimethicone isolation effect is good, expensive, industrially large-scale application is not special suitable, this hair Bright interleaving agent isolation effect is also pretty good, cheap, easy to use, environmentally safe, can be obtained in rubber enterprise It is widely applied, especially the rubber enterprise to some small scales, is a good selection.
Embodiment two:40ml deionized waters are added in three-necked flask, are heated up while being stirred makes it Stir, when temperature is 60-65 DEG C or so, then add antisettling agent polyacrylate 0.08g, and be stirred continuously, greatly After about stirring 15min, emulsifier op-10 2.2g, dispersant NNO 1.2g or so and emulsion adjuvant glycerine 0.3g are added, Stirred 30 minutes at 80 DEG C or so, be well mixed it, added 0.06g waterborne organic silicon defoamers if foam is more, make Its rapid froth breaking, then adds polyurethanes emulsion 2g, polyester emulsion 3g and zinc stearate 2g, odium stearate 1g, constant temperature is at a high speed Stirring 1 and a half hours, is then cooled to 55-60 DEG C or so addition pH buffer solution 0.06g, in greenhouse cooling extremely under moderate-speed mixer When 45-50 spends, if foam is more, 0.06g water-soluble organic silicon defoamers can be added, make lather collapse, finally will be anti- Solution after answering is poured into plastic cup and sealed.
Embodiment three:40ml distilled water is added in three-necked flask, is heated up while being stirred stirs it Mix uniform, when temperature is 60-65 DEG C or so, then add antisettling agent carboxymethyl cellulose 0.1g, and be stirred continuously, about Stir after 15min, add the 2.5g of emulsifying agent Span 60, polysorbate60 1.25g, dispersant Sodium Polyacrylate 0.3g or so and breast Change auxiliary agent glycerine 0.1g, stirred 30 minutes at 80 degree or so, be well mixed it, 0.06g phosphoric acid is added if foam is more Tributyl solution, makes its rapid froth breaking, then adds polyurethanes emulsion 3g and magnesium stearate 1.5g, constant temperature high-speed stirred 1.5 Hour, 55-60 DEG C or so addition triethylamine solution 0.06g is then cooled under moderate-speed mixer, in greenhouse cooling to 45-50 DEG C When, if foam is more, 0.06g tributyl phosphate solution can be added, makes lather collapse, finally reacted solution is fallen Enter in plastic cup and seal.

Claims (6)

1. a kind of rubber interleaving agent, it is characterised in that the rubber interleaving agent is made up of the raw material of following mass parts:Deionized water 25-40 parts, 2-10 parts of synthetic resin emulsion, carboxylic metallic salt 1-4 parts of long-chain fat race, 1-3 parts of dispersant, 2-5 parts of emulsifying agent, 0.2-1 parts of emulsion adjuvant, 0.05-0.25 parts of defoamer, 0.05-0.5 parts of antisettling agent, 0.08-0.14 parts of pH buffer solutions are described Synthetic resin emulsion be acrylic emulsion, polyurethanes emulsion, polyester emulsion in one or more, dispersant be NNO, The one or more of Sodium Polyacrylate, polyethenoxy ether class dispersant, emulsifying agent be OP-10, Span 20, Span 60, polysorbas20, Polysorbate60, glyceryl monostearate, dodecyl sodium sulfate, the one or more of neopelex, emulsion adjuvant is Polyethylene glycol series, glycerine, the one or more of urea.
2. rubber interleaving agent according to claim 1, it is characterised in that long-chain fat race carboxylic metallic salt is tristearin Sour zinc, magnesium stearate, odium stearate, the one or more of potassium stearate.
3. rubber interleaving agent according to claim 1, it is characterised in that the defoamer is water-soluble silicon class defoamer, phosphorus One kind in sour tributyl or modified polyether.
4. rubber interleaving agent according to claim 1, it is characterised in that the pH buffer solutions are sodium bicarbonate solution, carbonic acid The one or two of sodium solution, triethylamine solution.
5. rubber interleaving agent according to claim 1, it is characterised in that the antisettling agent is carboxymethyl cellulose, ethanol Amine, hydroxyethyl cellulose, the one or more of polyacrylate.
6. a kind of preparation method of the rubber interleaving agent described in claim 1-5 any claims, it is characterised in that the system Preparation Method step is as follows:
Deionized water is added in three-necked flask, is heated up while being stirred makes it stir, in 60-70 DEG C of difference Antisettling agent, emulsifying agent, emulsion adjuvant, dispersant are added, 75-80 DEG C is then heated to, stirs 30-40 minutes, mixes it Uniformly, part defoamer is added in whipping process, makes its rapid froth breaking, synthetic resin emulsion and long-chain fat is then added Race's carboxylic metallic salt, constant temperature is stirred 1.5-2 hours, is then cooled to 40-45 DEG C, pH buffer solutions is added in whipping process and surplus Remaining defoamer, makes lather collapse, and finally reacted solution is poured into plastic cup and sealed.
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CN106750452A (en) * 2016-11-18 2017-05-31 厦门宝橡橡塑材料有限公司 A kind of paste rubber interleaving agent
CN106751698B (en) * 2017-01-17 2019-03-19 江苏卡欧化工股份有限公司 A kind of environment-friendly rubber interleaving agent
CN108714989B (en) * 2018-05-25 2021-01-08 安徽安大中鼎橡胶技术开发有限公司 High-solid-content environment-friendly aqueous emulsion rubber separant without organic silicon
CN110003726A (en) * 2019-02-25 2019-07-12 马小良 A kind of high compatible rubber interleaving agent
CN110712330A (en) * 2019-12-12 2020-01-21 山东万圣博化工有限公司 Environment-friendly film release agent and preparation method thereof
CN112063087A (en) * 2020-09-11 2020-12-11 常熟市凯润新材料科技有限公司 Rubber mixing film separant and preparation method thereof
CN115820045B (en) * 2022-12-28 2023-11-24 东莞市汉维科技股份有限公司 Stearate paste water-based isolating agent and preparation method and application thereof

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CN103044623A (en) * 2011-10-17 2013-04-17 中国石油天然气股份有限公司 Coating agent and application thereof in preparation of powdered rubber
CN103709428A (en) * 2013-11-29 2014-04-09 山东永泰化工有限公司 Water soluble rubber separant

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JPS62119010A (en) * 1985-11-20 1987-05-30 Matsumoto Yushi Seiyaku Kk Releasing agent for rubber

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Publication number Priority date Publication date Assignee Title
CN103044623A (en) * 2011-10-17 2013-04-17 中国石油天然气股份有限公司 Coating agent and application thereof in preparation of powdered rubber
CN103709428A (en) * 2013-11-29 2014-04-09 山东永泰化工有限公司 Water soluble rubber separant

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