CN103878910A - Rubber product demolding agent and preparation method thereof - Google Patents
Rubber product demolding agent and preparation method thereof Download PDFInfo
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- CN103878910A CN103878910A CN201410147322.9A CN201410147322A CN103878910A CN 103878910 A CN103878910 A CN 103878910A CN 201410147322 A CN201410147322 A CN 201410147322A CN 103878910 A CN103878910 A CN 103878910A
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- releasing agent
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- polytetrafluoroethylene
- stearic acid
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Abstract
The invention discloses a rubber product demolding agent and a preparation method thereof. The rubber product demoldinng agent comprises the following ingredients by weight percent: 0.3 to 0.8 percent of polytetrafluoroethylene, 0.2 to 0.8 percent of stearic acid, 0.1 to 0.2 percent of carbon black, 0.5 to 1 percent of sodium sulfate and the balance being distilled water. The preparation method of the rubber product demolding agent comprises the following steps of (1) mixing polytetrafluoreothylene, stearic acid, carbon black, sodium sulfate and the distilled water according to the mass proportion; (2) stirring the mixture for 20 to 60 minutes by utilizing a stirring device to form uniform emulsion to obtain the emulsion demolding agent. The demoldinng agent is simple in ingredients and reliable in ingredient source; the preparation method is simple; the demolding agent is convenient to use, easy to paint and good in attachment performance and has the advantages of high temperature resistance, environmental friendliness, long service life and the like; moreover, the application range is wide, and the purpose of demolding a great amount of rubber and workpiece can be achieved.
Description
Technical field
The present invention relates to a kind of releasing agent, particularly a kind of rubber releasing agent and preparation method thereof.
Background technology
Releasing agent, as the important auxiliary agent of the one in rubber production, its role is to prevent that rubber and mould from occurring sticky glutinous, causes rubber to tear or damage.Releasing agent can help rubber from mould, to take out smoothly, and it is intact qualified to guarantee, the loss of reducing the number of rejects and seconds, enhances productivity and economic benefit.
Powder release agent uses morely at present.Powder release agent relates to particle or powder, as calcium carbonate, talcum powder etc.Particle or powder can form barrier layer at rubber and die surface, separate smoothly from mould thereby realize rubber.But particle or powder use amount are larger, easily swim in air, easily cause air pollution or become anaphylactogen, also can cause certain pollution to rubber and mould simultaneously.Therefore, powder release agent is not desirable releasing agent.Good releasing agent for rubber should be the smooth demoulding that can realize rubber, does not pollute again rubber and mould, environmentally friendly.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides rubber releasing agent of a kind of emulsion-type and preparation method thereof.
The technical scheme that the present invention solves the problems of the technologies described above is:
A kind of rubber releasing agent, comprises following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.3-0.8%, stearic acid 0.2-0.8%, carbon black 0.1-0.2%, sulphur sodium 0.5-1%, distilled water surplus.
Be preferably polytetrafluoroethylene (PTFE) 0.4-0.7%, stearic acid 0.2-0.7%, carbon black 0.1-0.2%, sulphur sodium 0.6-1%, distilled water surplus.
More preferably, polytetrafluoroethylene (PTFE) 0.4-0.5%, stearic acid 0.5-0.6%, carbon black 0.1-0.2%, sulphur sodium 0.6-0.9%, distilled water surplus.
Above-mentioned rubber releasing agent, described carbon black is metallurgical grade carbon black; Described polytetrafluoroethylene (PTFE) is Powdered, granularity 1-3um, and molecular weight is 1500-4000.
The preparation method of above-mentioned rubber releasing agent is:
(1) polytetrafluoroethylene (PTFE), stearic acid, carbon black, sulphur sodium and distilled water are mixed by above-mentioned quality proportioning;
(2) with mixing plant, mixture is stirred to 20-60 minute, form uniform emulsion and can obtain the releasing agent of emulsion-type.
When use, this rubber releasing agent direct spraying, on mould, or is put in mould (workpiece) in this emulsion-type rubber releasing agent and is soaked.
Beneficial effect of the present invention is:
(1) releasing agent composition of the present invention is comparatively simple, composition is from the horse's mouth, preparation method is also very simple, easy to use, be easy to spraying, tack is good, there is the multiple advantages such as high temperature resistant, environmental protection, long service life, and application is very extensive, has solved the problem of most of rubber and the workpiece demoulding.
(2) releasing agent of the present invention is take water as decentralized medium, and not containing organic solvent, in use unharmful substance discharges, and is the friendly type product of environmental protection.
(3) releasing agent of the present invention is using polytetrafluoroethylene (PTFE) as the main component that plays buffer action, and its physicochemical properties are stable, are difficult for reacting, heat-and corrosion-resistant, there is good buffer action, can isolate preferably mould and rubber, make the easy demoulding of rubber.
(4) releasing agent of the present invention is take stearic acid as stabilizing agent, and it can effectively avoid emulsion under high temperature high light, to separate out polyvinyl chloride and carbon black.
(5) carbon black that releasing agent of the present invention adopts, can adhere to die surface, especially relatively rough mould, invest surface by carbon black, make die surface can better form complete separation layer, strengthened the isolation effect of releasing agent, the demoulding is more prone to.
(6) releasing agent of the present invention has substituted with carbon black cork powder, alumina powder or the calcium carbonate powder etc. that conventional releasing agent may be used, consumption reduces, effect is better, and because releasing agent of the present invention is emulsion-type releasing agent, the use of carbon black can not float in air and air is polluted.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further details, but the present invention is not limited to this.
Embodiment 1
The rubber releasing agent of the present embodiment, comprises following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.3%, stearic acid 0.8%, carbon black 0.1%, sulphur sodium 0.5%, distilled water surplus.
The preparation method of this rubber releasing agent is:
(1) polytetrafluoroethylene (PTFE), stearic acid, carbon black, sulphur sodium and distilled water are mixed by above-mentioned quality proportioning;
(2) with mixing plant, mixture is stirred 30 minutes, form uniform emulsion and can obtain the releasing agent of emulsion-type.
When use, by this rubber releasing agent direct spraying on mould.
Embodiment 2
The rubber releasing agent of the present embodiment, comprises following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.8%, stearic acid 0.3%, carbon black 0.2%, sulphur sodium 0.8%, distilled water surplus.
The preparation method of this rubber releasing agent is:
(1) polytetrafluoroethylene (PTFE), stearic acid, carbon black, sulphur sodium and distilled water are mixed by above-mentioned quality proportioning;
(2) with mixing plant, mixture is stirred 50 minutes, form uniform emulsion and can obtain the releasing agent of emulsion-type.
When use, by this rubber releasing agent direct spraying on mould.
Embodiment 3
The rubber releasing agent of the present embodiment, comprises following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.6%, stearic acid 0.2%, carbon black 0.15%, sulphur sodium 0.7%, distilled water surplus.
The preparation method of this rubber releasing agent is:
(1) polytetrafluoroethylene (PTFE), stearic acid, carbon black, sulphur sodium and distilled water are mixed by above-mentioned quality proportioning;
(2) with mixing plant, mixture is stirred 20 minutes, form uniform emulsion and can obtain the releasing agent of emulsion-type.
When use, mould is put in this emulsion-type rubber releasing agent and is soaked.
Embodiment 4
The rubber releasing agent of the present embodiment, comprises following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.7%, stearic acid 0.7%, carbon black 0.1%, sulphur sodium 1%, distilled water surplus.
The preparation method of this rubber releasing agent is:
(1) polytetrafluoroethylene (PTFE), stearic acid, carbon black, sulphur sodium and distilled water are mixed by above-mentioned quality proportioning;
(2) with mixing plant, mixture is stirred 40 minutes, form uniform emulsion and can obtain the releasing agent of emulsion-type.
When use, mould is put in this emulsion-type rubber releasing agent and is soaked.
Embodiment 5
The rubber releasing agent of the present embodiment, comprises following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.5%, stearic acid 0.6%, carbon black 0.2%, sulphur sodium 0.6%, distilled water surplus.
The preparation method of this rubber releasing agent is:
(1) polytetrafluoroethylene (PTFE), stearic acid, carbon black, sulphur sodium and distilled water are mixed by above-mentioned quality proportioning;
(2) with mixing plant, mixture is stirred 60 minutes, form uniform emulsion and can obtain the releasing agent of emulsion-type.
When use, mould is put in this emulsion-type rubber releasing agent and is soaked.
Embodiment 6
The rubber releasing agent of the present embodiment, comprises following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.4%, stearic acid 0.5%, carbon black 0.1%, sulphur sodium 0.9%, distilled water surplus.
The preparation method of this rubber releasing agent is:
(1) polytetrafluoroethylene (PTFE), stearic acid, carbon black, sulphur sodium and distilled water are mixed by above-mentioned quality proportioning;
(2) with mixing plant, mixture is stirred 60 minutes, form uniform emulsion and can obtain the releasing agent of emulsion-type.
When use, by this rubber releasing agent direct spraying on mould.
Claims (6)
1. a rubber releasing agent, is characterized in that comprising following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.3-0.8%, stearic acid 0.2-0.8%, carbon black 0.1-0.2%, sulphur sodium 0.5-1%, distilled water surplus.
2. rubber releasing agent according to claim 1, is characterized in that comprising following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.4-0.7%, stearic acid 0.2-0.7%, carbon black 0.1-0.2%, sulphur sodium 0.6-1%, distilled water surplus.
3. rubber releasing agent according to claim 1, is characterized in that comprising following composition by mass percentage: polytetrafluoroethylene (PTFE) 0.4-0.5%, stearic acid 0.5-0.6%, carbon black 0.1-0.2%, sulphur sodium 0.6-0.9%, distilled water surplus.
4. rubber releasing agent according to claim 1, is characterized in that: described carbon black is metallurgical grade carbon black.
5. rubber releasing agent according to claim 1, is characterized in that: described polytetrafluoroethylene (PTFE) is Powdered, granularity 1-3um, and molecular weight is 1500-4000.
6. the preparation method of the rubber releasing agent described in claim 1 to 5 any one, is characterized in that comprising the steps:
(1) polytetrafluoroethylene (PTFE), stearic acid, carbon black, sulphur sodium and distilled water are mixed by above-mentioned quality proportioning;
(2) with mixing plant, mixture is stirred to 20-60 minute, form uniform emulsion and can obtain the releasing agent of emulsion-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410147322.9A CN103878910A (en) | 2014-04-14 | 2014-04-14 | Rubber product demolding agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410147322.9A CN103878910A (en) | 2014-04-14 | 2014-04-14 | Rubber product demolding agent and preparation method thereof |
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| CN103878910A true CN103878910A (en) | 2014-06-25 |
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| CN201410147322.9A Pending CN103878910A (en) | 2014-04-14 | 2014-04-14 | Rubber product demolding agent and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552688A (en) * | 2015-01-09 | 2015-04-29 | 中国工程物理研究院化工材料研究所 | Curable fluorine resin demoulding agent and preparation method |
| CN105014837A (en) * | 2015-08-19 | 2015-11-04 | 胡承华 | Release agent special for meltable fluororesin molding processing |
| CN106042230A (en) * | 2016-06-15 | 2016-10-26 | 奉化市辉宏有机硅化工有限公司 | Mould release agent for rubber |
| CN106117925A (en) * | 2016-06-30 | 2016-11-16 | 嘉兴市哈妮鞋业有限公司 | Preparation rubber soles releasing agent |
| CN106182515A (en) * | 2016-06-30 | 2016-12-07 | 嘉兴市哈妮鞋业有限公司 | The preparation method of rubber soles releasing agent |
| CN108688026A (en) * | 2018-05-14 | 2018-10-23 | 贺州学院 | A kind of thermosetting resin releasing agent and preparation method thereof |
| CN108775450A (en) * | 2018-06-08 | 2018-11-09 | 成都纺织高等专科学校 | A kind of anti-electrostatic glass fiber reinforced plastic road and preparation method thereof |
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| US5464586A (en) * | 1990-08-02 | 1995-11-07 | Rhein Chemie Rheinau Gmbh | Aqueous slip and mold-release agent and process for the molding and vulcanization of tires and other rubber articles |
| CN101189322A (en) * | 2005-06-01 | 2008-05-28 | 日本帕卡濑精株式会社 | Aqueous lubricating coating agent to be used for solids |
| CN101838581A (en) * | 2009-03-19 | 2010-09-22 | 张伟 | Mould release agent |
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2014
- 2014-04-14 CN CN201410147322.9A patent/CN103878910A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464586A (en) * | 1990-08-02 | 1995-11-07 | Rhein Chemie Rheinau Gmbh | Aqueous slip and mold-release agent and process for the molding and vulcanization of tires and other rubber articles |
| CN101189322A (en) * | 2005-06-01 | 2008-05-28 | 日本帕卡濑精株式会社 | Aqueous lubricating coating agent to be used for solids |
| CN101838581A (en) * | 2009-03-19 | 2010-09-22 | 张伟 | Mould release agent |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552688A (en) * | 2015-01-09 | 2015-04-29 | 中国工程物理研究院化工材料研究所 | Curable fluorine resin demoulding agent and preparation method |
| CN104552688B (en) * | 2015-01-09 | 2017-02-22 | 中国工程物理研究院化工材料研究所 | Curable fluorine resin demoulding agent and preparation method |
| CN105014837A (en) * | 2015-08-19 | 2015-11-04 | 胡承华 | Release agent special for meltable fluororesin molding processing |
| CN106042230A (en) * | 2016-06-15 | 2016-10-26 | 奉化市辉宏有机硅化工有限公司 | Mould release agent for rubber |
| CN106042230B (en) * | 2016-06-15 | 2018-05-22 | 奉化市辉宏有机硅化工有限公司 | A kind of releasing agent for rubber and preparation method thereof |
| CN106117925A (en) * | 2016-06-30 | 2016-11-16 | 嘉兴市哈妮鞋业有限公司 | Preparation rubber soles releasing agent |
| CN106182515A (en) * | 2016-06-30 | 2016-12-07 | 嘉兴市哈妮鞋业有限公司 | The preparation method of rubber soles releasing agent |
| CN108688026A (en) * | 2018-05-14 | 2018-10-23 | 贺州学院 | A kind of thermosetting resin releasing agent and preparation method thereof |
| CN108688026B (en) * | 2018-05-14 | 2021-03-26 | 贺州学院 | Thermosetting resin release agent and preparation method thereof |
| CN108775450A (en) * | 2018-06-08 | 2018-11-09 | 成都纺织高等专科学校 | A kind of anti-electrostatic glass fiber reinforced plastic road and preparation method thereof |
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Application publication date: 20140625 |