CN110372918B - Preparation and storage method of rubber anti-sticking agent - Google Patents
Preparation and storage method of rubber anti-sticking agent Download PDFInfo
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- CN110372918B CN110372918B CN201910655917.8A CN201910655917A CN110372918B CN 110372918 B CN110372918 B CN 110372918B CN 201910655917 A CN201910655917 A CN 201910655917A CN 110372918 B CN110372918 B CN 110372918B
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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
- C08K3/34—Silicon-containing compounds
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Abstract
The invention relates to a preparation method of a rubber anti-sticking agent, which comprises the following steps of firstly, isolating a preparation tank; secondly, adding desalted water into the preparation tank and stirring; thirdly, adding a surfactant into the preparation tank, adding a defoaming agent and stirring; fourthly, adding xanthan gum into the preparation tank and stirring; fifthly, adding talcum powder into the preparation tank and stirring; and sixthly, adding sodium hydroxide into the preparation tank, and stirring until the solution in the preparation tank is white emulsion and the pH is 9-11, and stopping stirring to obtain the rubber anti-sticking agent. The invention relates to a storage method of a rubber anti-sticking agent, which comprises the steps of adding desalted water into a storage tank for cleaning, pouring the rubber anti-sticking agent to be stored into the storage tank for stirring, circulating, and performing pouring, sampling and observation. The preparation method of the rubber anti-sticking agent can effectively reduce the precipitation of the rubber anti-sticking agent. The invention also provides a preparation method of the rubber anti-sticking agent, which can stably store the rubber anti-sticking agent to prevent deterioration.
Description
Technical Field
The invention belongs to the technical field of rubber anti-sticking agents, and particularly relates to a preparation method of a rubber anti-sticking agent, and a rubber anti-sticking storage method.
Background
With the rapid development of economy in recent years and the rapid development of sealing strips, rubber tubes, rubber belts, automobile sealing and lubricating oil modification industries, the utilization rate of ethylene propylene rubber in industrial construction in China is higher and higher, and the demand of the ethylene propylene rubber is increased continuously. At present, rubber anti-sticking agents are required to be added in the production processes of the first FasTech ethylene propylene rubber production process and the second domestic wet ethylene propylene rubber production process in the world, so that the phenomenon of 'kettle lump' is avoided in the production of ethylene propylene rubber. The rubber anti-sticking agent plays an important role in preventing the phenomenon of rubber sticking together, but in the actual preparation and storage processes of the rubber anti-sticking agent, the rubber anti-sticking agent can generally precipitate during delivery, the service life is short, and the productivity of ethylene propylene rubber is seriously influenced.
Disclosure of Invention
The invention aims to provide a preparation method of a rubber anti-sticking agent, which can effectively reduce the precipitation of the rubber anti-sticking agent.
The invention also provides a preparation method of the rubber anti-sticking agent, which can stably store the rubber anti-sticking agent to prevent deterioration.
The first technical scheme adopted by the invention is as follows: a preparation method of a rubber anti-sticking agent is specifically implemented according to the following steps:
firstly, isolating a preparation tank;
secondly, adding 10000-14000 Kg of desalted water into the preparation tank, starting a stirrer, and stirring the desalted water at a constant speed;
thirdly, adding 1.3-2 Kg of surfactant and 4.2-6 Kg of defoaming agent into the preparation tank, and continuously stirring for at least 5min while keeping the stirring speed unchanged;
fourthly, adding 20-30 Kg of xanthan gum into the preparation tank, and continuously stirring for at least 30min while keeping the stirring speed unchanged;
fifthly, adding 100-140 Kg of talcum powder into the preparation tank, and keeping the stirring speed unchanged for at least continuing stirring for 30 min;
and sixthly, adding 2-5L of sodium hydroxide into the preparation tank, keeping the stirring speed unchanged, at least continuing stirring for 2 hours, and stopping stirring to obtain the rubber anti-sticking agent when the solution in the preparation tank is a white emulsion and the pH value is 9-11.
The first technical aspect of the present invention is also characterized in that,
the preparation tank in the first step is dry and pollution-free.
In the second step, the stirring speed is 30-60 r/min.
The concentration of sodium hydroxide added in the sixth step was 20%.
The other technical scheme adopted by the invention is as follows: a method for storing a rubber anti-sticking agent is implemented according to the following steps:
firstly, adding desalted water into a storage tank for cleaning, and drying the storage tank for later use after cleaning for 2-3 times;
secondly, keeping the ambient temperature at 15-20 ℃ in an inert gas and sealed environment, pouring the rubber anti-sticking agent to be stored into a storage tank, starting a stirrer to stir the rubber anti-sticking agent at a speed of 30-60r/min, and connecting the storage tank with a delivery pump, so that the delivery pump is used for circulating the rubber anti-sticking agent all the time to prevent the rubber anti-sticking agent from precipitating;
and thirdly, observing and ensuring whether the rubber anti-sticking agent is deteriorated or not by pouring and sampling the rubber anti-sticking agent in the storage tank every 2-4 days.
The amount of the desalted water in the first step is 30-50% of the liquid level of the storage tank.
In the second step, the inert gas is nitrogen.
The preparation and storage method of the rubber anti-sticking agent has the beneficial effects that:
(1) according to the preparation method of the rubber anti-sticking agent, the xanthan gum is added into the preparation tank, the xanthan gum is a carbohydrate organic substance and can be fully dissolved in water, no precipitate is caused, and the xanthan gum can promote a water body to adsorb the talcum powder, so that the precipitate in the preparation process is effectively reduced;
(2) according to the preparation method of the rubber anti-sticking agent, the preparation tank is isolated, so that cross contamination with other preparation tanks in the preparation process is avoided, the service life of the prepared rubber anti-sticking agent can be prolonged, meanwhile, the xanthan gum is added firstly, then the talcum powder is added, the xanthan gum promotes water to adsorb the talcum powder, damage to operators due to volatilization of the talcum powder in the preparation process is avoided, and the preparation method is beneficial to the health of the operators;
(3) the invention relates to a method for storing a rubber anti-sticking agent, which can effectively ensure the storage safety of the rubber anti-sticking agent, is not easy to deteriorate and can prolong the service life of the rubber anti-sticking agent to 2-3 weeks from 3-4 days to the longest by using a pollution-free storage tank to store the rubber anti-sticking agent in a sealed stable environment, stirring all the time and pouring and sampling.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
A preparation method of a rubber anti-sticking agent is specifically implemented according to the following steps:
firstly, isolating a preparation tank;
secondly, adding 10000-14000 Kg of desalted water into the preparation tank, starting a stirrer, and stirring the desalted water at a constant speed;
thirdly, adding 1.3-2 Kg of surfactant and 4.2-6 Kg of defoaming agent into the preparation tank, and continuously stirring for at least 5min while keeping the stirring speed unchanged;
fourthly, adding 20-30 Kg of xanthan gum into the preparation tank, and continuously stirring for at least 30min while keeping the stirring speed unchanged;
fifthly, adding 100-140 Kg of talcum powder into the preparation tank, and keeping the stirring speed unchanged for at least continuing stirring for 30 min;
and sixthly, adding 2-5L of sodium hydroxide into the preparation tank, keeping the stirring speed unchanged, at least continuing stirring for 2 hours, and stopping stirring to obtain the rubber anti-sticking agent when the solution in the preparation tank is a white emulsion and the pH value is 9-11.
The preparation tank in the first step is dry and pollution-free.
In the second step, the stirring speed is 30-60 r/min.
The concentration of sodium hydroxide added in the sixth step was 20%.
A method for storing a rubber anti-sticking agent is implemented according to the following steps:
firstly, adding desalted water into a storage tank for cleaning, and drying the storage tank for later use after cleaning for 2-3 times;
secondly, keeping the ambient temperature at 15-20 ℃ in an inert gas and sealed environment, pouring the rubber anti-sticking agent to be stored into a storage tank, starting a stirrer to stir the rubber anti-sticking agent at a speed of 30-60r/min, and connecting the storage tank with a delivery pump, so that the delivery pump is used for circulating the rubber anti-sticking agent all the time to prevent the rubber anti-sticking agent from precipitating;
and thirdly, observing and ensuring whether the rubber anti-sticking agent is deteriorated or not by pouring and sampling the rubber anti-sticking agent in the storage tank every 2-4 days.
The amount of the desalted water in the first step is 30-50% of the liquid level of the storage tank.
The inert gas in the second step is nitrogen.
Example 1:
preparation: isolating the preparation tank, adding 10000Kg of desalted water into the preparation tank, starting a stirrer of the preparation tank, stirring the desalted water at the speed of 30r/min continuously, then respectively adding 1.3Kg of surfactant and 4.2Kg of defoaming agent into the preparation tank, continuously stirring for 5min while keeping the stirring speed unchanged, then adding 20Kg of xanthan gum into the preparation tank, continuously stirring for 30min while keeping the stirring speed unchanged, then adding 100Kg of talcum powder into the preparation tank, continuously stirring for 30min while keeping the stirring speed unchanged, then adding 2L of sodium hydroxide with the concentration of 20 percent into the preparation tank, continuously stirring for 2h while keeping the stirring speed unchanged, observing that the solution in the preparation tank is white emulsion at the moment, wherein the pH is 9.5, and successfully preparing the rubber anti-sticking agent.
And (3) storage: cleaning the storage tank for 2 times, completely drying, sealing the environment of the storage tank, filling nitrogen, controlling the ambient temperature to be 15 ℃, pouring the prepared rubber anti-sticking agent into the storage tank, starting a stirrer to stir the rubber anti-sticking agent at a speed of 30r/min, connecting the storage tank with a delivery pump, circulating the rubber anti-sticking agent by the delivery pump, pouring and sampling the rubber anti-sticking agent every 2 days, and observing to ensure whether the rubber anti-sticking agent is deteriorated.
Example 2:
preparation: isolating the preparation tank, adding 11000Kg of desalted water into the preparation tank, starting a stirrer of the preparation tank, stirring the desalted water at the speed of 35r/min continuously, then respectively adding 1.4Kg of surfactant and 4.6Kg of defoaming agent into the preparation tank, continuously stirring for 6min while keeping the stirring speed unchanged, then adding 22Kg of xanthan gum into the preparation tank, continuously stirring for 35min while keeping the stirring speed unchanged, then adding 110Kg of talcum powder into the preparation tank, continuously stirring for 35min while keeping the stirring speed unchanged, then adding 2.5L of sodium hydroxide with the concentration of 20 percent into the preparation tank, continuously stirring for 2.1h while keeping the stirring speed unchanged, observing that the solution in the preparation tank is white emulsion at the moment, wherein the pH is 9.6, and successfully preparing the rubber anti-sticking agent.
And (3) storage: cleaning the storage tank for 2 times, completely drying, sealing the environment of the storage tank, filling nitrogen, controlling the ambient temperature to be 16 ℃, pouring the prepared rubber anti-sticking agent into the storage tank, starting a stirrer to stir the rubber anti-sticking agent at a speed of 35r/min, connecting the storage tank with a delivery pump, circulating the rubber anti-sticking agent by the delivery pump, pouring and sampling the rubber anti-sticking agent every 2 days, and observing to ensure whether the rubber anti-sticking agent is deteriorated.
Example 3:
preparation: isolating the preparation tank, adding 12000Kg of desalted water into the preparation tank, starting a stirrer of the preparation tank, stirring the desalted water at the speed of 40r/min continuously, then respectively adding 1.5Kg of surfactant and 5.1Kg of defoaming agent into the preparation tank, continuously stirring for 6min while keeping the stirring speed unchanged, then adding 23Kg of xanthan gum into the preparation tank, continuously stirring for 33min while keeping the stirring speed unchanged, then adding 115Kg of talcum powder into the preparation tank, continuously stirring for 33min while keeping the stirring speed unchanged, then adding 2.8L of sodium hydroxide with the concentration of 20 percent into the preparation tank, continuously stirring for 2.2h while keeping the stirring speed unchanged, observing that the solution in the preparation tank is white emulsion at the moment, wherein the pH is 9.5, and successfully preparing the rubber anti-sticking agent.
And (3) storage: cleaning a storage tank for 2 times, completely drying, sealing the environment of the storage tank, filling nitrogen, controlling the ambient temperature to be 17 ℃, pouring the prepared rubber anti-sticking agent into the storage tank, starting a stirrer to stir the rubber anti-sticking agent at a speed of 33r/min, connecting the storage tank with a delivery pump, circulating the rubber anti-sticking agent by the delivery pump, pouring and sampling the rubber anti-sticking agent every 3 days, and observing to ensure whether the rubber anti-sticking agent is deteriorated.
Example 4:
preparation: isolating the preparation tank, adding 13000Kg of desalted water into the preparation tank, starting a stirrer of the preparation tank, stirring the desalted water at the speed of 45r/min continuously, then respectively adding 1.65Kg of surfactant and 5.5Kg of defoaming agent into the preparation tank, continuously stirring for 7min while keeping the stirring speed unchanged, then adding 25Kg of xanthan gum into the preparation tank, continuously stirring for 35min while keeping the stirring speed unchanged, then adding 120Kg of talcum powder into the preparation tank, continuously stirring for 35min while keeping the stirring speed unchanged, then adding 3.5L of sodium hydroxide with the concentration of 20 percent into the preparation tank, continuously stirring for 2.2h while keeping the stirring speed unchanged, observing that the solution in the preparation tank is white emulsion at the moment, wherein the pH is 10, and successfully preparing the rubber anti-sticking agent.
And (3) storage: cleaning the storage tank for 2 times, completely drying, sealing the environment of the storage tank, filling nitrogen, controlling the ambient temperature to be 18 ℃, pouring the prepared rubber anti-sticking agent into the storage tank, starting a stirrer to stir the rubber anti-sticking agent at a speed of 35r/min, connecting the storage tank with a delivery pump, circulating the rubber anti-sticking agent by the delivery pump, pouring and sampling the rubber anti-sticking agent every 2 days, and observing to ensure whether the rubber anti-sticking agent is deteriorated.
Example 5:
preparation: isolating the preparation tank, adding 14000Kg of desalted water into the preparation tank, starting a stirrer of the preparation tank, stirring the desalted water at the speed of 60r/min continuously, then respectively adding 2Kg of surfactant and 6Kg of defoaming agent into the preparation tank, continuously stirring for 7min while keeping the stirring speed unchanged, then adding 30Kg of xanthan gum into the preparation tank, continuously stirring for 35min while keeping the stirring speed unchanged, then adding 140Kg of talcum powder into the preparation tank, continuously stirring for 35min while keeping the stirring speed unchanged, then adding 5L of sodium hydroxide with the concentration of 20 percent into the preparation tank, continuously stirring for 2.2h while keeping the stirring speed unchanged, observing that the solution in the preparation tank is white emulsion at the moment, wherein the pH is 10.4, and successfully preparing the rubber anti-sticking agent.
And (3) storage: cleaning the storage tank for 2 times, completely drying, sealing the environment of the storage tank, filling nitrogen, controlling the ambient temperature to be 20 ℃, pouring the prepared rubber anti-sticking agent into the storage tank, starting a stirrer to stir the rubber anti-sticking agent at a speed of 35r/min, connecting the storage tank with a delivery pump, circulating the rubber anti-sticking agent by the delivery pump, pouring and sampling the rubber anti-sticking agent every 4 days, and observing to ensure whether the rubber anti-sticking agent is deteriorated.
The rubber anti-sticking agents of examples 1 to 5 obtained by applying the preparation method of the present invention were subjected to the storage of the present invention and the storage of commercially available rubber anti-sticking agents in a normal environment, and the detection results were as described in table 1 below:
TABLE 1
The service life is embodied by color and smell, the storage method of the invention is used for storing the rubber anti-sticking agent, and the conditions of color graying and smell souring and smelling appear in 12 days, 13 days, 14 days and 14 days respectively, while the conditions of color graying and smell souring appear when the commercially available rubber anti-sticking agent is stored in a normal environment for no more than 7 days, which is not only related to the high temperature of 40 ℃ stored in the normal environment, but also related to the sequence of solvents added in the preparation of the commercially available rubber anti-sticking agent and the content of xanthan gum.
According to the preparation and storage method of the rubber anti-sticking agent, the xanthan gum is added firstly, then the talcum powder is added, the content of the xanthan gum is controlled within a reasonable range, the rubber anti-sticking agent is stored in a pollution-free storage tank under a sealed and stable environment, the rubber anti-sticking agent is stirred all the time, and the sampling is performed by pouring, so that the storage safety of the rubber anti-sticking agent can be effectively ensured, the rubber anti-sticking agent is not easy to deteriorate, the service life of the rubber anti-sticking agent can be prolonged to 2-3 weeks from 3-4 days in the prior art, and the effect is remarkable.
Claims (1)
1. The preparation method of the rubber anti-sticking agent is characterized by comprising the following steps:
firstly, isolating a preparation tank, drying the preparation tank and avoiding pollution;
secondly, 10000-14000 Kg of desalted water is added into the preparation tank, then a stirrer is started, and the desalted water is stirred at a constant speed of 30-60 r/min;
thirdly, adding 1.3-2 Kg of surfactant and 4.2-6 Kg of defoaming agent into the preparation tank, and continuously stirring for at least 5min while keeping the stirring speed unchanged;
fourthly, adding 20-30 Kg of xanthan gum into the preparation tank, and continuously stirring for at least 30min while keeping the stirring speed unchanged;
fifthly, adding 100-140 Kg of talcum powder into the preparation tank, and keeping the stirring speed unchanged for at least continuing stirring for 30 min;
and sixthly, adding 2-5L of sodium hydroxide into the preparation tank, keeping the concentration of the added sodium hydroxide at 20%, continuously stirring for at least 2 hours while keeping the stirring speed unchanged, and stopping stirring until the solution in the preparation tank is white emulsion and the pH value is 9-11 to obtain the rubber anti-sticking agent.
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| US11267985B2 (en) | 2019-04-08 | 2022-03-08 | Polymer Solutions Group | Anti-tack formulation of high solids content, diluted anti-tack formulation and method of use of diluted anti-tack formulation |
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| CN1651543A (en) * | 2004-02-02 | 2005-08-10 | 孙贵义 | Leakage repairing liquid for tyre |
| JP2013209658A (en) * | 2013-05-20 | 2013-10-10 | Matsumoto Yushi Seiyaku Co Ltd | Anti-sticking agent composition for unvulcanized rubber |
| CN104650719A (en) * | 2015-02-02 | 2015-05-27 | 安徽枞阳县渡江充气设备制造有限公司 | Sterilizing freezing-tolerance waterproof paint and preparation method thereof |
| CN109777172A (en) * | 2017-11-14 | 2019-05-21 | 成绵广 | A kind of building coating of good heat-insulation effect |
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2019
- 2019-07-19 CN CN201910655917.8A patent/CN110372918B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651543A (en) * | 2004-02-02 | 2005-08-10 | 孙贵义 | Leakage repairing liquid for tyre |
| JP2013209658A (en) * | 2013-05-20 | 2013-10-10 | Matsumoto Yushi Seiyaku Co Ltd | Anti-sticking agent composition for unvulcanized rubber |
| CN104650719A (en) * | 2015-02-02 | 2015-05-27 | 安徽枞阳县渡江充气设备制造有限公司 | Sterilizing freezing-tolerance waterproof paint and preparation method thereof |
| CN109777172A (en) * | 2017-11-14 | 2019-05-21 | 成绵广 | A kind of building coating of good heat-insulation effect |
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