CN104552686B - Mold-releasing agent and preparation method of mold-releasing agent - Google Patents
Mold-releasing agent and preparation method of mold-releasing agent Download PDFInfo
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- CN104552686B CN104552686B CN201310515658.1A CN201310515658A CN104552686B CN 104552686 B CN104552686 B CN 104552686B CN 201310515658 A CN201310515658 A CN 201310515658A CN 104552686 B CN104552686 B CN 104552686B
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Abstract
The invention provides a mold-releasing agent. The mold-releasing agent comprises a water-soluble mold-releasing agent, an additive and a surfactant, wherein the additive is prepared from one or a mixture of two of a nano magnetic material and a nano metal material; by taking the total weight of the mold-releasing agent as a reference, the content of the additive is 1.6-24.5wt%. The mold-releasing agent can be applied to preparation of specially-shaped rubber hoses; more than two rubber hoses can be produced by coating the mold-releasing agent once, so that the mold-releasing agent is not liable to fall off in the process of producing the rubber hoses; and the consumption of the mold-releasing agent can be greatly reduced.
Description
Technical field
The invention belongs to special hose manufactures field, more particularly, to a kind of releasing agent and preparation method thereof.
Background technology
In daily life, the use of rubber tube, especially automobile rubber tube is more and more extensive.Special hose shaping at present
Method, is generally divided into 3 steps: 1, continuously extrude the rubber tube pipe of hollow first in an extruder；2nd, pipe embryo internal wall of pipe orifice and with
The corresponding die surfaces of pipe configuration coat releasing agent, and then pipe embryo is inserted in tube core；3rd, pipe embryo and tube core push steam sulphur together
Change tank sulfuration, extract after sulfuration sizing.This technique has the disadvantage that releasing agent is easily from pipe during poling and de- pipe
Mouth and rod iron termination are extruded or are taken out of, cause larger waste；Every time before sleeve pipe, rod iron surface will be coated with, and causes weight
Return to work and waste.
The patent of Publication No. cn1746248a discloses a kind of releasing agent, and this releasing agent includes the group of following weight parts ratio
Point: stearic acid 0.8-2.4 part, silicone emulsion 2.4-3.4 part, emulsifying agent 1.0-3.0 part, antifreezing agent 0.8-1.5 part, alkali metal
Compound 0.4-1.0 part, water 80-90 part., during poling and de- pipe, releasing agent is easily from the mouth of pipe and rod iron termination for this releasing agent
Extrude or take out of, cause larger waste；Every time before sleeve pipe, rod iron surface will be coated with, and causes repeated work to waste.
Content of the invention
The present invention is to solve existing releasing agent to hold caducous technical problem in casting process, provides one kind to be difficult to take off
Releasing agent falling and preparation method thereof.
The invention provides a kind of releasing agent, described releasing agent includes water-soluble mold-release agent, additive and surfactant；
Described additive is one of nano magnetic material and nano metal material or two kinds of mixtures；Gross weight with releasing agent is
Benchmark, the content of described additive is 1.6-24.5wt%.
Present invention also offers a kind of preparation method of releasing agent, the method comprises the following steps:
S1, additive is mixed with surfactant, prepare additive emulsion；
S2, silicone oil and emulsifying agent are mixed to get water-soluble mold-release agent；
S3, additive emulsion and water-soluble mold-release agent are mixed to get releasing agent；
Wherein, described additive is one of nano magnetic material and nano metal material or two kinds of mixtures；With de-
On the basis of the gross weight of mould agent, the content of described additive is 1.6-24.5wt%.
The releasing agent of the present invention, due to adding additive nano metal material or nano magnetic material, should in releasing agent
Used time, additive can adsorb other materials in releasing agent, so that it is difficult for drop-off.
Specific embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect become more apparent, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only in order to explain
The present invention, is not intended to limit the present invention.
The invention provides a kind of releasing agent, described releasing agent includes water-soluble mold-release agent, additive and surfactant；
Described additive is one of nano magnetic material and nano metal material or two kinds of mixtures；Gross weight with releasing agent is
Benchmark, the content of described additive is 1.6-24.5wt%.
According to releasing agent provided by the present invention, in order to improve further, stripping result is good and releasing agent does not fall off, preferably
Ground, on the basis of the gross weight of releasing agent, the content of described additive is 4.4-12.2wt%.
According to releasing agent provided by the present invention, your magnetic material described has no particular limits, and can be this area
Conventional various magnetic materials, in order to improve adsorption effect it is preferable that described nano magnetic material is fe3o4；Described nm of gold
Belong to material to have no particular limits, can be various nano metal materials commonly used in the art, in order to improve absorption effect further
Really it is preferable that described nano metal material is fe, at least one in co, ni.Described fe3o4, fe, co and ni can be commercially available,
Oneself can also prepare, such as nanometer fe is prepared using chemical precipitation method3o4Magnetic material: i.e. in 90 DEG C of water-baths and mechanical agitation bar
Under part, fecl2And fecl3It is gradually added nh in mixed solution3And sodium oleate solution .h2o receive through chemical coprecipitation preparation
Rice magnetic particle.Nano metal powder fe is prepared using inert-gas condensation method, co, ni etc..
According to releasing agent provided by the present invention, adsorb the effect of other materials in releasing agent to improve additive further
Fruit is it is preferable that the average grain diameter of described additive is 20-120nm, more preferably 40-80nm.
According to releasing agent provided by the present invention, described water-soluble mold-release agent has no particular limits, and can be this area
Conventional various water-soluble mold-release agents, such as include the water-soluble mold-release agent of silicone oil and emulsifying agent；Wherein, described silicone oil is hydroxyl silicon
At least one in oil, silicone oil of carboxyl, ester group silicone oil and amido silicon oil；Described emulsifying agent is polyoxyethylene lauryl ether, gathers
At least one in ethylene glycol lauryl ether, polyethylene glycol, sorbate, oleic acid and Span 80.
According to releasing agent provided by the present invention, in order to improve stripping result it is preferable that gross weight with water-soluble mold-release agent
On the basis of amount, the content of described silicone oil is 85-97wt%, and the content of described emulsifying agent is 3-15wt%.It is further preferred that it is described
The content of silicone oil is 90-95wt%, and the content of described emulsifying agent is 5-10wt%.
According to releasing agent provided by the present invention it is preferable that on the basis of the gross weight of releasing agent, the described aqueous solvent demoulding
The content of agent is 75-98wt%, and the content of described surfactant is 0.004-5wt%.
Present invention also offers a kind of preparation method of releasing agent, the method comprises the following steps:
S1, additive is mixed with surfactant, prepare additive emulsion；
S2, silicone oil and emulsifying agent are mixed to get water-soluble mold-release agent；
S3, additive emulsion and water-soluble mold-release agent are mixed to get releasing agent；
Wherein, described additive is one of nano magnetic material and nano metal material or two kinds of mixtures；With de-
On the basis of the gross weight of mould agent, the content of described additive is 1.6-24.5wt%.
The preparation method of the releasing agent being provided according to the present invention, in order that releasing agent mixing evenly it is preferable that whole
Carry out mechanical agitation and supersonic oscillations in individual preparation process.
The releasing agent of the present invention, in the case of tube core Overall magnetization, the magnetic releasing agent of fine dispersion can uniformly be inhaled
Be attached to tube core outer surface, can largely avoid wearing, degumming pipe when releasing agent come off from tube core outer surface, thus at utmost
The upper consumption saving releasing agent.Releasing agent consumption used is greatly reduced than before, and cleaning after the sebific duct demoulding is relatively easy to.
Below by specific embodiment, the present invention is further described.
Embodiment 1
1st, inert-gas condensation method is used to prepare nanometer fe powder, particle diameter is 30nm；
2nd, under the conditions of mechanical agitation and supersonic oscillations, prepare nanometer iron powder emulsion, its composition and percentage by weight
As follows: nanometer fe powder 90%wt, surfactant (pva: Span 80=1:1): 10%wt；
3rd, hydroxy silicon oil and polyoxyethylene lauryl ether are mixed to form water-soluble mold-release agent, and the content of hydroxy silicon oil is
85wt%, the content of polyoxyethylene lauryl ether is 15wt%；
4th, in the case of mechanical agitation and supersonic oscillations, prepare magnetic releasing agent a1, its composition and weight percent are such as
Under: nanometer iron powder emulsion 10%wt, water-soluble mold-release agent 90%wt.
Embodiment 2
1st, chemical precipitation method preparation nanometer fe3o4Magnetic particle, particle diameter is 60nm；
2nd, under the conditions of mechanical agitation and supersonic oscillations, prepare magnetic particle emulsion, its composition and percentage by weight
As follows: magnetic particle 92%wt, surfactant (pva): 8%wt；
3rd, hydroxy silicon oil and polyethylene glycol lauryl ether are mixed to form water-soluble mold-release agent, and the content of hydroxy silicon oil is
90wt%, the content of polyethylene glycol lauryl ether is 10wt%；
4th, in the case of mechanical agitation and supersonic oscillations, prepare magnetic releasing agent a2, its composition and weight percent are such as
Under: magnetic particle emulsion 12%wt, water-soluble mold-release agent 88%wt.
Embodiment 3
1st, chemical precipitation method preparation nanometer fe3o4Magnetic particle, particle diameter is in 30nm；
2nd, under the conditions of mechanical agitation and supersonic oscillations, prepare magnetic particle emulsion, its composition and percentage by weight
As follows: magnetic particle 90%wt, surfactant (Span 80: polyethylene glycol=1:2): 10%wt；
3rd, silicone oil of carboxyl and polyethylene glycol are mixed to form water-soluble mold-release agent, and the content of hydroxy silicon oil is 97wt%, poly- second two
The content of alcohol is 3wt%；
4th, in the case of mechanical agitation and supersonic oscillations, prepare magnetic releasing agent a3, its composition and weight percent are such as
Under: magnetic particle emulsion 6%wt, water-soluble mold-release agent 94%wt.
Embodiment 4
1st, chemical precipitation method preparation nanometer fe3o4Magnetic particle and nanometer co powder, wherein fe3o4 magnetic particle and cobalt powder
For 1:1, particle diameter is 20nm to weight ratio；
2nd, under the conditions of mechanical agitation and supersonic oscillations, prepare magnetic particle emulsion, its composition and percentage by weight
As follows: magnetic particle 80%wt, surfactant (pva): 20%wt；
3rd, silicone oil of carboxyl and polyethylene glycol are mixed to form water-soluble mold-release agent, and the content of ester group silicone oil is 97wt%, poly- second two
The content of alcohol is 3wt%；
4th, in the case of mechanical agitation and supersonic oscillations, prepare magnetic releasing agent a4, its composition and weight percent are such as
Under: magnetic particle emulsion 25%wt, water-soluble mold-release agent 75%wt.
Embodiment 5
1st, chemical precipitation method preparation nanometer ni powder, particle diameter is in 40nm；
2nd, under the conditions of mechanical agitation and supersonic oscillations, prepare magnetic particle emulsion, its composition and percentage by weight
As follows: magnetic particle 98%wt, surfactant (pva): 2%wt；
3rd, silicone oil of carboxyl and polyethylene glycol are mixed to form water-soluble mold-release agent, and the content of amido silicon oil is 97wt%, poly- second two
The content of alcohol is 3wt%；
4th, in the case of mechanical agitation and supersonic oscillations, prepare magnetic releasing agent a5, its composition and weight percent are such as
Under: magnetic particle emulsion 2%wt, water-soluble mold-release agent 98%wt.
Embodiment 6
1st, chemical precipitation method preparation nanometer fe3o4Magnetic particle and nanometer fe powder, nanometer fe3o4 magnetic particle and nanometer fe
, than for 2:1, particle diameter is in 80nm for the weight of powder；
2nd, under the conditions of mechanical agitation and supersonic oscillations, prepare magnetic particle emulsion, its composition and percentage by weight
As follows: magnetic particle 88%wt, surfactant (pva): 12%wt；
3rd, silicone oil of carboxyl and polyethylene glycol are mixed to form water-soluble mold-release agent, and the content of hydroxy silicon oil is 97wt%, poly- second two
The content of alcohol is 3wt%；
4th, in the case of mechanical agitation and supersonic oscillations, prepare magnetic releasing agent a6, its composition and weight percent are such as
Under: magnetic particle emulsion 13%wt, water-soluble mold-release agent 87%wt.
Embodiment 7
1st, chemical precipitation method preparation nanometer fe3o4Magnetic particle, particle diameter is in 120nm；
2nd, under the conditions of mechanical agitation and supersonic oscillations, prepare magnetic particle emulsion, its composition and percentage by weight
As follows: magnetic particle 94%wt, surfactant (pva): 6%wt；
3rd, silicone oil of carboxyl and polyethylene glycol are mixed to form water-soluble mold-release agent, and the content of hydroxy silicon oil is 97wt%, poly- second two
The content of alcohol is 3wt%；
4th, in the case of mechanical agitation and supersonic oscillations, prepare magnetic releasing agent a7, its composition and weight percent are such as
Under: magnetic particle emulsion 5%wt, water-soluble mold-release agent 95%wt.
Comparative example 1
Method according to cn1746248a embodiment 1 prepares releasing agent ca1.
Performance test
1st, sizing material is placed in complex extruder (Zhanjiang equipment Co., Ltd), extrudes at 80 DEG C, extruded velocity is 7m/
Min, obtains pipe；
2nd, the critical point inwall of pipe and the surface of tube core corresponding with pipe configuration be respectively coated with releasing agent a1-a7 and
Then pipe is inserted in tube core by ca1；
3rd, pipe embryo and tube core push steam vulcanization tank sulfuration together, extract after sulfuration sizing.
In the process, observe the product number that releasing agent of coating can be prepared, the results are shown in Table 1.
Table 1
.
From table 1 it follows that carry out the preparation of special hose with the releasing agent of the present invention, present invention's of coating is de-
Mould agent can prepare the product of more than 2, and carry out the preparation of special hose with the releasing agent of comparative example 1, and once this takes off for coating
Mould agent only can prepare 1 product.Illustrate that the releasing agent of the present invention is difficult for drop-off in preparing product process, can be greatly
Save the consumption of releasing agent.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (11)
1. a kind of releasing agent is it is characterised in that described releasing agent includes water-soluble mold-release agent, additive and surfactant；Institute
Stating additive is one of nano magnetic material and nano metal material or two kinds of mixtures；With the gross weight of releasing agent as base
Standard, the content of described additive is 1.6-24.5wt%；Described water-soluble mold-release agent includes silicone oil and emulsifying agent.
2. releasing agent according to claim 1 is it is characterised in that on the basis of the gross weight of releasing agent, described additive
Content be 4.4-12.2wt%.
3. releasing agent according to claim 1 is it is characterised in that described nano magnetic material is fe3o4, described nm of gold
Genus material is fe, at least one in co, ni.
4. releasing agent according to claim 1 is it is characterised in that the average grain diameter of described additive is 20-120nm.
5. releasing agent according to claim 4 is it is characterised in that the average grain diameter of described additive is 40-80nm.
6. releasing agent according to claim 1 is it is characterised in that described silicone oil is hydroxy silicon oil, silicone oil of carboxyl, ester group silicon
At least one in oil and amido silicon oil；Described emulsifying agent is polyoxyethylene lauryl ether, polyethylene glycol lauryl ether,
At least one in polyethylene glycol, sorbate, oleic acid and Span 80.
7. releasing agent according to claim 6 is it is characterised in that on the basis of the gross weight of water-soluble mold-release agent, described
The content of silicone oil is 85-97wt%, and the content of described emulsifying agent is 3-15wt%.
8. releasing agent according to claim 7 is it is characterised in that on the basis of the gross weight of water-soluble mold-release agent, described
The content of silicone oil is 90-95wt%, and the content of described emulsifying agent is 5-10wt%.
9. releasing agent according to claim 7 is it is characterised in that on the basis of the gross weight of releasing agent, described aqueous solvent
The content of releasing agent is 75-98wt%, and the content of described surfactant is 0.004-5wt%.
10. a kind of preparation method of releasing agent is it is characterised in that the method comprises the following steps:
S1, additive is mixed with surfactant, prepare additive emulsion；
S2, silicone oil and emulsifying agent are mixed to get water-soluble mold-release agent；
S3, additive emulsion and water-soluble mold-release agent are mixed to get releasing agent；
Wherein, described additive is one of nano magnetic material and nano metal material or two kinds of mixtures；With releasing agent
Gross weight on the basis of, the content of described additive is 1.6-24.5wt%, and described water-soluble mold-release agent includes silicone oil and emulsification
Agent.
The preparation method of 11. releasing agents according to claim 10 is it is characterised in that carry out machine in whole preparation process
Tool stirring and supersonic oscillations.
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| CN201310515658.1A CN104552686B (en) | 2013-10-28 | 2013-10-28 | Mold-releasing agent and preparation method of mold-releasing agent |
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| CN201310515658.1A CN104552686B (en) | 2013-10-28 | 2013-10-28 | Mold-releasing agent and preparation method of mold-releasing agent |
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| CN106833858B (en) * | 2017-01-21 | 2019-11-26 | 上海新平精细化学品有限公司 | A kind of multipurpose neutrality release agent and preparation method thereof |
| CN107267867A (en) * | 2017-07-04 | 2017-10-20 | 合肥择浚电气设备有限公司 | A kind of excavator toothholder manufacturing process for mine |
| CN109096968A (en) * | 2018-06-26 | 2018-12-28 | 江苏吉福新材料股份有限公司 | A kind of lipid binder and its manufacturing method |
| CN109676835A (en) * | 2019-01-09 | 2019-04-26 | 苏州赫伯特电子科技有限公司 | A kind of encapsulation release agent and its preparation and application |
| CN112831274B (en) * | 2021-02-24 | 2022-01-28 | 烟台大学 | Hydrosulphonyl-terminated polysiloxane water-based release agent |
| CN113527767B (en) * | 2021-08-09 | 2022-07-12 | 万华化学（北京）有限公司 | Magnetic internal mold release agent and preparation method thereof, polyurethane composition and preparation method of polyurethane HP-RTM composite material |
| CN114515815A (en) * | 2022-02-22 | 2022-05-20 | 马鞍山中集瑞江润滑油有限公司 | Water-based magnetic release agent |
| CN115851121B (en) * | 2022-12-15 | 2023-10-20 | 上海东恒化工有限公司 | Aqueous magnetic particle-based release coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0659529A1 (en) * | 1993-12-22 | 1995-06-28 | Rhein Chemie Rheinau GmbH | External release agent |
| CN1746278A (en) * | 2004-11-01 | 2006-03-15 | 徐立辉 | Moldlubricant |
| CN102825687A (en) * | 2012-08-21 | 2012-12-19 | 河南省科学院高新技术研究中心 | Novel rubber tire isolation release agent and preparation method thereof |
-
2013
- 2013-10-28 CN CN201310515658.1A patent/CN104552686B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0659529A1 (en) * | 1993-12-22 | 1995-06-28 | Rhein Chemie Rheinau GmbH | External release agent |
| CN1746278A (en) * | 2004-11-01 | 2006-03-15 | 徐立辉 | Moldlubricant |
| CN102825687A (en) * | 2012-08-21 | 2012-12-19 | 河南省科学院高新技术研究中心 | Novel rubber tire isolation release agent and preparation method thereof |
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