CN103331411A - Efficient, lossless, precision molding demoulding addictive for pressure casting and preparation method thereof - Google Patents
Efficient, lossless, precision molding demoulding addictive for pressure casting and preparation method thereof Download PDFInfo
- Publication number
- CN103331411A CN103331411A CN2013102053850A CN201310205385A CN103331411A CN 103331411 A CN103331411 A CN 103331411A CN 2013102053850 A CN2013102053850 A CN 2013102053850A CN 201310205385 A CN201310205385 A CN 201310205385A CN 103331411 A CN103331411 A CN 103331411A
- Authority
- CN
- China
- Prior art keywords
- additive
- releasing agent
- efficient
- addictive
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Mold Materials And Core Materials (AREA)
- Lubricants (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an efficient, lossless, precision molding demoulding addictive for pressure casting and a preparation method thereof. The addictive is modified silicone oil which is produced by modifying methyl hydrogen polysiloxane oil with dodecene and phenylethylene. The specific structure is shown in the description, wherein the X is between 5000 and 6000, and the Y is between 80 and 90. The addictive of mould release agent provided by the invention is modified with dodecene and phenylethylene. As an addictive of mould release agent, in the same demoulding conditions, the use amount of the addictive can be reduced by 20%, and the cost is reduced by 30% compared to the import level product. The addictive can be used as mould release agent to improve mould release effect and high-temperature resistance effect during aluminum alloy pressure casting, can be used as an addictive of internal release agent and high-temperature resistance mould release agent during silicone rubber production, and has a vast market prospect.
Description
Technical field
The present invention relates to a kind of demoulding additive, specifically, relate to a kind of die casting with efficient, harmless, precise forming demoulding additive and preparation method, strengthen the releasing agent additive of stripping result and high-temperature resistant result when can be used as aluminium alloy compression casting, and when silicon rubber is produced as the interior demoulding and resistant to elevated temperatures additive.
Background technology
The main centralizedly supply merchant of the releasing agent of the aluminium die casting of present industrial use is DOW CORNING, watt gram etc.Releasing agent main feature on the market of present stage is single, and stripping result is pretty good, but yield rate is not high or high-temperature resistant result good, but production efficiency not good (production efficiency refers to the frequency of periodic cleaning mould).And carbon distribution is residual generally than higher after the aluminium die casting releasing agent demoulding in the market, influences the outward appearance of final products.
Summary of the invention
The releasing agent customer service of our improved above-mentioned defective, under the prerequisite that does not influence its stripping result, increase its high-temperature stability, reduced residual.And to solve the Stability Analysis of Structures that residual key is product, and the active constituent content height of silicone oil the inside, segmented structure is stable.
The purpose of this invention is to provide a kind of die casting with efficient, harmless, precise forming demoulding additive and preparation method, stripping result when this demoulding additive can increase aluminium die casting, high lubricating effect, improve and turn over the mould number of times, and can reduce when the aluminium die casting demoulding high temperature to the decomposition of releasing agent, reduce the consumption of releasing agent, can be high temperature resistant, and reduced residual.
In order to achieve the above object, the invention provides a kind of die casting efficient, harmless, precise forming demoulding additive, this additive is the modified silicon oil behind 12 alkene and phenylethene modified Methyl Hydrogen Polysiloxane Fluid, and its concrete structure is as follows:
Wherein, X=5000-6000; Y=80-90.
Above-mentioned die casting is with efficient, harmless, precise forming demoulding additive, and wherein, described additive is to adopt 25～30 parts containing hydrogen silicone oil, 70～75 parts 12 alkene, and the platinum complex compound of 5 parts styrene and 0.1 part, condensation makes under HTHP.
Above-mentioned die casting is used efficiently, harmless, precise forming demoulding additive, and wherein, described HTHP refers to 250-270 ℃, and pressure is 5-10MPa.
The present invention also provides a kind of above-mentioned die casting preparation method efficient, harmless, precise forming demoulding additive, and described additive is by the following raw material of meter by weight:
25～30 parts of containing hydrogen silicone oils;
70～75 parts in 12 alkene;
5 parts of styrene;
0.1 part in platinum complex compound;
Be 250-270 ℃ in reaction temperature, reaction pressure is under the 5-10MPa, makes in condensation reaction 4-7 hour.
The present invention also provides a kind of above-mentioned die casting purposes efficient, harmless, precise forming demoulding additive, strengthen the releasing agent of stripping result and high-temperature resistant result when it is used for improving aluminium alloy compression casting, and when silicon rubber is produced as the interior demoulding and resistant to elevated temperatures additive.
Above-mentioned die casting usefulness is efficient, harmless, the purposes of precise forming demoulding additive, wherein, the preparation method of described releasing agent is: the described additive of getting 20%-25% by the releasing agent overall weight percent, other additives 5% that the water of 70-75% and releasing agent are commonly used, the releasing agent preparation method obtains releasing agent routinely.
The structure of described Methyl Hydrogen Polysiloxane Fluid (being containing hydrogen silicone oil) is:
Cross-linking reaction easily takes place owing to contain the more active Si-H key of some in the molecule in this containing hydrogen silicone oil, under the catalysis of Pt catalyst, can make the crosslinking agent of add-on type liquid silicon rubber.Under metallic salt, catalysis, can form hydrophobic film on the surface of various materials at a lower temperature.The Si-H key is easy fracture under alkali condition.Concrete reaction is as follows:
Organosilyl backbone is to be to play lubrication in aluminium die casting industry, and has certain heat endurance, connecting 12 alkene on the side chain is further to promote greasy property, be release property (general similar silicone oil select for use be 6 alkene or 8 alkene), the styrene structure that grafting is got on (styrene of preferred 2-3 carbon) can promote the resistance to elevated temperatures of product significantly.
Because a large amount of polymerization inhibitors is contained in the styrene the inside, actual styrene connects side chain and is difficult to.The present invention is through validation trial, finally obtains proper reaction conditions, can simultaneously styrene structure and 12 alkene be grafted on the containing hydrogen silicone oil.The present invention has a process when producing be to remove the inhibition composition of the inside, and namely pressurized conditions does not have compressive reaction in the normal building-up process, and compressive reaction is the key of removing cinnamic inhibition composition.Polymerization technique control just because of us is proper, and the active ingredient of silicone oil is than higher, and the consumption of our product can lack about 20% than the addition on the present market.
Releasing agent additive provided by the invention, through 12 alkene and cinnamic modification, as the additive of releasing agent, under equal demoulding condition, the use of this additive can reduce by 20% consumption; Cost reduces 30% than the product cost of import grade; Strengthen the releasing agent of stripping result and high-temperature resistant result in the time of being used for improving aluminium alloy compression casting, and when silicon rubber is produced as the interior demoulding and resistant to elevated temperatures additive, have very big market prospects.
The specific embodiment
Die casting of the present invention with efficient, harmless, precise forming demoulding additive by the following raw material of meter by weight:
25～30 parts of containing hydrogen silicone oils;
70～75 parts in 12 alkene;
5 parts of styrene;
0.1 part in platinum complex compound
Under HTHP (250-270 ℃, pressure is 5-10MPa), made in condensation reaction 4-7 hour.
Described 12 alkene molecular formula are: C12H24; Molecular weight: 168.32; CAS number: 112-41-4.
Below in conjunction with embodiment technical scheme of the present invention is described further.
Embodiment 1
Get the following raw material of meter by weight: 25 parts of containing hydrogen silicone oils, 70 parts in 12 alkene, 5 parts of styrene, 0.1 part in platinum complex compound places autoclave, and in 250-270 ℃, pressure is under the 5-10MPa condition, reacts 4 hours, obtains the modified silicon oil of target.This modified silicon oil is qualitative through chromatograph-mass spectrometer.
Embodiment 2
Get the following raw material of meter by weight: 28 parts of containing hydrogen silicone oils, 75 parts in 12 alkene, 5 parts of styrene, 0.1 part in platinum complex compound places autoclave, and in 250-270 ℃, pressure is under the 5-10MPa condition, reacts 7 hours, obtains the modified silicon oil of target.This modified silicon oil is qualitative through chromatograph-mass spectrometer.
Embodiment 3
Get the following raw material of meter by weight: 30 parts of containing hydrogen silicone oils, 72 parts in 12 alkene, 5 parts of styrene, 0.1 part in platinum complex compound places autoclave, and in 250-270 ℃, pressure is under the 5-10MPa condition, reacts 6 hours, obtains the modified silicon oil of target.This modified silicon oil is qualitative through chromatograph-mass spectrometer.
The modified silicon oil that the present invention is synthesized provides the main raw material as releasing agent to the manufacturer of releasing agent on mainly, with preparation end product, i.e. releasing agent.
Embodiment 4
Embodiment 1 resulting silicone oil gets 20% by the end product overall weight percent, other additives 5% that water 75% and releasing agent are commonly used, and the releasing agent preparation method obtains releasing agent routinely.
The effect of assessment releasing agent mainly is a comparison of turning on the mould number of times: every die casting one secondary aluminium of user, temperature probably at 300～400 degree, can spray releasing agent one time.The resulting releasing agent continuous operation of present embodiment 3 months does not need to carry out the polishing of mould.
Comparative Examples 1
Get the modified silicon oil that is used for the releasing agent additive conventional on the market, get 35% by the end product overall weight percent, other additives 5% that water 60% and releasing agent are commonly used, the releasing agent preparation method obtains releasing agent routinely.
After 1 month, just must polish once by mould in continuous operation for the resulting releasing agent of this Comparative Examples.
Compare above-described embodiment 4 and Comparative Examples 1 as seen, the releasing agent that utilizes modified silicon oil of the present invention to prepare can reduce the injury to mould, improves the service life of mould.And the addition of modified silicon oil of the present invention still less just can reach better stripping result, can reach the purpose that reduces cost.Under equal demoulding condition, the use of this additive can reduce by 20% consumption; Cost reduces 30% than the product cost of import grade.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1. a die casting is characterized in that with efficient, harmless, precise forming demoulding additive this additive is the modified silicon oil behind 12 alkene and phenylethene modified Methyl Hydrogen Polysiloxane Fluid, and concrete structure is as follows:
Wherein, X=5000-6000; Y=80-90.
2. die casting as claimed in claim 1 is with efficient, harmless, precise forming demoulding additive, it is characterized in that described additive is to adopt 25～30 parts containing hydrogen silicone oil, 70～75 parts 12 alkene, the platinum complex compound of 5 parts styrene and 0.1 part, condensation makes under HTHP.
3. die casting as claimed in claim 2 is characterized in that with efficient, harmless, precise forming demoulding additive described HTHP refers to 250-270 ℃, and pressure is 5-10MPa.
4. a die casting as claimed in claim 1 is characterized in that with preparation method efficient, harmless, precise forming demoulding additive, and described additive is by the following raw material of meter by weight:
25～30 parts of containing hydrogen silicone oils;
70～75 parts in 12 alkene;
5 parts of styrene;
0.1 part in platinum complex compound;
Be 250-270 ℃ in reaction temperature, reaction pressure is under the 5-10MPa, makes in condensation reaction 4-7 hour.
5. a die casting as claimed in claim 1 is with purposes efficient, harmless, precise forming demoulding additive, it is characterized in that, strengthen the releasing agent of stripping result and high-temperature resistant result when it is used for improving aluminium alloy compression casting, and when silicon rubber is produced as the interior demoulding and resistant to elevated temperatures additive.
6. die casting as claimed in claim 5 is with purposes efficient, harmless, precise forming demoulding additive, it is characterized in that, the preparation method of described releasing agent is: the described additive of getting 20%-25% by the releasing agent overall weight percent, other additives 5% that the water of 70-75% and releasing agent are commonly used, the releasing agent preparation method obtains releasing agent routinely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205385.0A CN103331411B (en) | 2013-05-29 | 2013-05-29 | Efficient, lossless, precision molding demoulding addictive for pressure casting and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205385.0A CN103331411B (en) | 2013-05-29 | 2013-05-29 | Efficient, lossless, precision molding demoulding addictive for pressure casting and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103331411A true CN103331411A (en) | 2013-10-02 |
| CN103331411B CN103331411B (en) | 2015-05-20 |
Family
ID=49239653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310205385.0A Active CN103331411B (en) | 2013-05-29 | 2013-05-29 | Efficient, lossless, precision molding demoulding addictive for pressure casting and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103331411B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2525420A (en) * | 2014-04-24 | 2015-10-28 | Henkel Ag & Co Kgaa | New modified silicone oil for low temperature cure die casting lubricants |
| CN110358093A (en) * | 2018-04-11 | 2019-10-22 | 苏州润特新材料科技有限公司 | A kind of preparation method of high temperature resistant alkylaryl silicone oil |
| CN111633885A (en) * | 2020-06-12 | 2020-09-08 | 欧士曼(台州)高分子科技有限公司 | High-temperature-resistant rubber mold release agent and preparation method thereof |
| CN112574417A (en) * | 2020-11-27 | 2021-03-30 | 山东大易化工有限公司 | Preparation method of release agent suitable for medium-high temperature metal die casting |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0379311A (en) * | 1989-08-23 | 1991-04-04 | Tonen Chem Corp | Mold release agent composition |
| EP0550028A1 (en) * | 1991-12-26 | 1993-07-07 | Dow Corning Toray Silicone Company, Limited | Mold-release agent composition for aluminum die-casting |
| JPH06287306A (en) * | 1993-03-31 | 1994-10-11 | Toray Ind Inc | Preparation of epoxidized organopolysiloxane, resin additive, and semiconductor-sealing epoxy resin composition |
| JPH10244546A (en) * | 1997-03-05 | 1998-09-14 | Nok Corp | Mold release agent |
| US6635606B2 (en) * | 2000-03-17 | 2003-10-21 | Nicca Chemical Co., Ltd. | Release agents for die casting |
| CN1646590A (en) * | 2002-04-10 | 2005-07-27 | 三洋化成工业株式会社 | Polyurethane resin based slush molding material |
| CN1656173A (en) * | 2002-04-12 | 2005-08-17 | 罗狄亚化学公司 | Siloxane composition not releasing hydrogen for the moulding/demoulding of tyres |
| CN1813022A (en) * | 2003-06-30 | 2006-08-02 | 罗迪亚公司 | Microparticle containing silicone release coatings having improved anti-block and release properties |
| CN101402734A (en) * | 2008-11-11 | 2009-04-08 | 宁波润禾化学工业有限公司 | Process for producing long-chain alkyl-phenyl modified silicone oil |
| CN102532551A (en) * | 2011-12-09 | 2012-07-04 | 宁波经济技术开发区希科新材料有限公司 | Preparation method of monocarboxyl modified silicone oil |
| CN102585233A (en) * | 2010-12-17 | 2012-07-18 | 日华化学株式会社 | Organo-modified silicone, mold release agent for metal mold casting comprising the same, and metal mold casting method using the same |
-
2013
- 2013-05-29 CN CN201310205385.0A patent/CN103331411B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0379311A (en) * | 1989-08-23 | 1991-04-04 | Tonen Chem Corp | Mold release agent composition |
| EP0550028A1 (en) * | 1991-12-26 | 1993-07-07 | Dow Corning Toray Silicone Company, Limited | Mold-release agent composition for aluminum die-casting |
| JPH06287306A (en) * | 1993-03-31 | 1994-10-11 | Toray Ind Inc | Preparation of epoxidized organopolysiloxane, resin additive, and semiconductor-sealing epoxy resin composition |
| JPH10244546A (en) * | 1997-03-05 | 1998-09-14 | Nok Corp | Mold release agent |
| US6635606B2 (en) * | 2000-03-17 | 2003-10-21 | Nicca Chemical Co., Ltd. | Release agents for die casting |
| CN1646590A (en) * | 2002-04-10 | 2005-07-27 | 三洋化成工业株式会社 | Polyurethane resin based slush molding material |
| CN1656173A (en) * | 2002-04-12 | 2005-08-17 | 罗狄亚化学公司 | Siloxane composition not releasing hydrogen for the moulding/demoulding of tyres |
| CN1813022A (en) * | 2003-06-30 | 2006-08-02 | 罗迪亚公司 | Microparticle containing silicone release coatings having improved anti-block and release properties |
| CN101402734A (en) * | 2008-11-11 | 2009-04-08 | 宁波润禾化学工业有限公司 | Process for producing long-chain alkyl-phenyl modified silicone oil |
| CN102585233A (en) * | 2010-12-17 | 2012-07-18 | 日华化学株式会社 | Organo-modified silicone, mold release agent for metal mold casting comprising the same, and metal mold casting method using the same |
| CN102532551A (en) * | 2011-12-09 | 2012-07-04 | 宁波经济技术开发区希科新材料有限公司 | Preparation method of monocarboxyl modified silicone oil |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2525420A (en) * | 2014-04-24 | 2015-10-28 | Henkel Ag & Co Kgaa | New modified silicone oil for low temperature cure die casting lubricants |
| CN106459417A (en) * | 2014-04-24 | 2017-02-22 | 汉高股份有限及两合公司 | New modified silicon oil for low temperature cure die casting lubricants |
| CN110358093A (en) * | 2018-04-11 | 2019-10-22 | 苏州润特新材料科技有限公司 | A kind of preparation method of high temperature resistant alkylaryl silicone oil |
| CN111633885A (en) * | 2020-06-12 | 2020-09-08 | 欧士曼(台州)高分子科技有限公司 | High-temperature-resistant rubber mold release agent and preparation method thereof |
| CN112574417A (en) * | 2020-11-27 | 2021-03-30 | 山东大易化工有限公司 | Preparation method of release agent suitable for medium-high temperature metal die casting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103331411B (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103331411B (en) | Efficient, lossless, precision molding demoulding addictive for pressure casting and preparation method thereof | |
| MX2009013820A (en) | Hybrid wax compositions for use in compression molded wax articles such as candles. | |
| EP3230410A1 (en) | Aromatic hydrogenation catalysts and uses thereof | |
| KR101679914B1 (en) | Synthesis method of glucaric acid | |
| CN102796600B (en) | Preparation method of high-grade borate type automobile brake fluid | |
| CN102911013B (en) | Ethylene-glycolrefining method | |
| CN105802237B (en) | Heat-conducting silica gel composition, heat-conducting silica gel and preparation method thereof | |
| CN101506320A (en) | A paint composition | |
| CN104231631A (en) | High-performance thermal conductive silicone rubber and preparation method thereof | |
| CN102558465A (en) | Synthesizing method of solution polymerized styrene butadiene rubber | |
| CN107922738A (en) | Sol composition and aeroge | |
| CN102863569A (en) | Low-VOC (volatile organic compound)-content flame-retardant expandable polystyrene resin and preparation method thereof | |
| Muzafarov et al. | New approaches in silicon production and recycling for sustainable future | |
| CN104725866A (en) | High-damping silicon rubber | |
| CN103897191B (en) | A kind of preparation method of hydroxy-terminated polysiloxane polyalcohol | |
| CN106916605B (en) | A method of PAO12 base oil is synthesized by photoinitiator TPO | |
| CN102040908B (en) | Preparation method of natural gas pipeline corrosion-resistant and drag-reduction chemical additive | |
| CN106565567B (en) | A kind of regeneration method of highly efficient regeneration auxiliary agent, preparation method and useless butyl inner tube | |
| CN108329475B (en) | Synthetic method of methyl phenyl silicone oil | |
| WO2020108913A1 (en) | Catalysed process of production of hydrogen from silylated derivatives as hydrogen carrier compounds | |
| CN103554399B (en) | Phosphorus-containing binding resin and synthetic method thereof | |
| US20130345385A1 (en) | Process for producing a composite material | |
| CN103146419B (en) | Desalting and hydrating demulsifying agent for highly-saline produced liquid of oilfield and preparation method of desalting and hydrating demulsifying agent | |
| CN112480411A (en) | High-yield low-cost phenyl silicone oil synthesis process | |
| TWI542612B (en) | Silicone resin with improved barrier properties |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |