CN101628459B - Polyurethane oil-based release agent and application thereof - Google Patents
Polyurethane oil-based release agent and application thereof Download PDFInfo
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- CN101628459B CN101628459B CN2009100488688A CN200910048868A CN101628459B CN 101628459 B CN101628459 B CN 101628459B CN 2009100488688 A CN2009100488688 A CN 2009100488688A CN 200910048868 A CN200910048868 A CN 200910048868A CN 101628459 B CN101628459 B CN 101628459B
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Abstract
The invention relates to the technical field of high polymer materials, in particular to a polyurethane (PU) oil-based release agent and application thereof. The PU oil-based release agent is characterized by comprising the following components by weight percent: 50-65% of methyl silicone oil, 15-30% of hydroxy silicone oil, 10-12% of modified amino silicone oil, 7-9.5% of chloralkane and 0.5-1% of additive. The oil-based release agent is mainly applied to release of the PU products after casting moulding in the production process and ensures good release effects on moulding of most PU. The agent fills the domestic blank of such kind of products, has great competitive strength and simultaneously lowers the production cost greatly.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of polyurethane oil-based release agent and uses thereof, be used for behind the polyurethane product production process moulding by casting releasely, give most polyurethane moulded good stripping results, and pooled applications be in shoe industry and auto-parts production industry.
Background technology
Releasing agent (also claiming interleaving agent) is the processing aid in the polyurethane product production process at present, and its effect is to prevent that polyurethane product from mould sticking sticking being taken place after the cast molding in mould, causes goods to tear and damage, and causes producing the loss that can't cause.After using releasing agent, goods are taken out smoothly from mould, it is intact qualified to guarantee, effectively raises labour productivity, and the loss of reducing the number of rejects and seconds is increased economic efficiency.
It is good that desirable releasing agent should satisfy following requirement (1) demolding performace, the demoulding easily; (2) product is stable, and is pollution-free to mould and goods; (3) give complete outward appearance of goods and ageing resistace; (4) smokeless and nontoxic, no special odor.But in the polyurethane release agent that in China's industry, uses at present, useful inorganic compound mica powder, talcum powder etc. serve as demoulding material, useful organic compound such as organic acid soap class, hard acid ester salt classes etc. are as demoulding material, useful high molecular polymer such as silicon rubber, estersil and solvent are obtained more outstanding effect as demoulding composition.But the production technology of the high molecular polymer oiliness polyurethane release agent of using on big the production mostly is external major company and monopolizes, and agree sky, DOW CORNING, mark etc. as the U.S..We find that on the basis of the product that uses them for many years the oil product of external high molecular polymerization is used for the polyurethane production effect and is, but has defective simultaneously, the one, deposit the back with variation of ambient temperature, and product generation qualitative change influences result of use; Two are to use the residue concentration accumulation of back on mould, cause type to become and clear mould difficulty.Analysis verification finds it is that because HMW, stable in properties has silicon again as lubricant owing to contain a certain amount of silicon rubber in its product or silicone grease causes, and flocculation is reunited easily, forms residual main component.
In order to draw the advantage of external oiliness polyurethane release agent, overcome the defective of its existence, we have carried out special research, be grouped into material experiment from one-tenth, research is developed finally and is satisfied big production requirement repeatedly, cost is low, and quality is better than the polyurethane oil-based release agent of external product.
Summary of the invention
Technical problem to be solved by this invention provides a kind of polyurethane oil-based release agent and uses thereof.
The invention discloses a kind of polyurethane oil-based release agent, it is characterized in that it is made up of following components in weight percentage:
Methyl-silicone oil: 50～65%
Hydroxy silicon oil: 15～30%
Aminoethyl aminopropyl dimethyl silicone polymer: 10～12%
Chloralkane: 79.5%
Additive: 0.5～1%
In one embodiment, described chloralkane is carrene, chloroform.
On the other hand, the present invention also provides the purposes of above-mentioned polyurethane oil-based release agent in polyurethane product is produced.
Oil-based release agent of the present invention, be mainly used in behind the polyurethane product production process moulding by casting release, give most polyurethane moulded good stripping results, as at the bottom of the polyurethane shoe, carpet, semihard bubble and brightening type be from the skinning product etc., pooled applications is in shoe industry and auto-parts production industry.Owing to do not have big molecule such as silicon rubber in the high molecular polymer, materials such as silicone grease; So, overcome the mass deficiency of present external product, simultaneously, greatly reduce production cost.This product does not have any toxicity, and is nonflammable, and safety is pollution-free.
The specific embodiment
Below in conjunction with specific embodiment, further illustrate the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.Ratio and percentage are based on weight, unless stated otherwise.
Embodiment 1: the preparation polyurethane oil-based release agent
Prepare burden as following weight percent:
Methyl-silicone oil: 50%
Hydroxy silicon oil: 30%
Modified amino silicon oil: 10%
Chloralkane: 9%
Additive: 1%
That implements focuses on the synthetic, specific as follows of modified amino silicon oil:
1, ammonia alkyl methyl dimethoxysilane carries out balanced reaction through siloxane oligomer and octamethylcy-clotetrasiloxane that hydrolysis makes in the presence of catalyst.Similar substantially to the balanced reaction of producing dimethicone, difference is that immiscible two-phase is carried out balanced reaction, and the reaction time is longer, and before not finishing balanced reaction, reaction system is a cloudy state; Carrying out along with reaction turned to transparent by muddiness.In addition, react under long-time high temperature, the easy oxidation of ammonia alkyl makes the product its colour changed into yellow.So, in synthetic, should pay attention to the selection and the necessary post processing measure of reaction condition.
2, the modified amino silicon oil of getting corresponding weight dilutes evenly with the chloralkane solution dispersion of corresponding ratio, the methyl-silicone oil and the hydroxy silicon oil that add corresponding proportion again, add 1% Dabco T-120 additive at last, under the dispersion machine of 1500～2000 commentaries on classics/min, stirred 3～4 hours the barrelling sealing.
When 3, using, directly trace is smeared, and use also available fat hydrocarbon solvent dilution back, respond well.
Owing to do not have big molecule such as silicon rubber in the high molecular polymer, materials such as silicone grease; So, overcome present external product and stored reunions of flocculating easily of back product, take off and touch mould power and descend, and mould residue problem such as how, simultaneously, greatly reduce production cost, be used widely alternative imported product.
Scope of the present invention is not subjected to the restriction of described specific embodiments, and described embodiment is only desired also to comprise the method and the component of functional equivalent in the scope of the invention as the single example of illustrating various aspects of the present invention.In fact, except content as herein described, those skilled in the art can easily grasp multiple improvement of the present invention with reference to above description and accompanying drawing.Described improvement also falls within the scope of appended claims.
Claims (3)
1. polyurethane oil-based release agent is characterized in that it is made up of following components in weight percentage:
Methyl-silicone oil: 50～65%
Hydroxy silicon oil: 15～30%
Aminoethyl aminopropyl dimethyl silicone polymer: 10～12%
Chloralkane: 7～9.5%
Additive: 0.5～1%.
2. according to the described polyurethane oil-based release agent of claim 1, it is characterized in that: described chloralkane is carrene, chloroform.
3. according to the purposes of each described polyurethane oil-based release agent of claim 1-2 in polyurethane product is produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100488688A CN101628459B (en) | 2009-04-07 | 2009-04-07 | Polyurethane oil-based release agent and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100488688A CN101628459B (en) | 2009-04-07 | 2009-04-07 | Polyurethane oil-based release agent and application thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN101628459A CN101628459A (en) | 2010-01-20 |
| CN101628459B true CN101628459B (en) | 2011-06-15 |
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| CN2009100488688A Expired - Fee Related CN101628459B (en) | 2009-04-07 | 2009-04-07 | Polyurethane oil-based release agent and application thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329497B (en) * | 2011-07-12 | 2012-11-21 | 苏州斯迪克新材料科技股份有限公司 | Mist-surface release agent |
| CN103419309A (en) * | 2012-05-24 | 2013-12-04 | 上海立汰新模具材料有限公司 | Release agent for polyurethane toy and purpose thereof |
| CN103302775B (en) * | 2013-05-31 | 2015-10-07 | 苏州市景荣科技有限公司 | The compound releasing agent of a kind of PU footwear material |
| CN103883122B (en) * | 2014-02-12 | 2016-04-13 | 华侨大学 | A kind of rammed earth wall building release method |
| CN110408275A (en) * | 2019-07-26 | 2019-11-05 | 苏州谦元新材料科技有限公司 | A kind of water-borne dispersions product and application |
| CN111016018A (en) * | 2019-12-18 | 2020-04-17 | 中交第二航务工程局有限公司 | Special external mold release agent for non-aqueous reaction type double-component foam polyurethane and preparation method thereof |
| CN113858500A (en) * | 2021-09-09 | 2021-12-31 | 上海涂固安高科技有限公司 | Slip agent modified organic silicon release agent and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19824279C1 (en) * | 1998-05-28 | 1999-12-02 | Acmos Chemie Gmbh & Co | Release agent, its use and process for its production |
| CN101010156A (en) * | 2004-08-31 | 2007-08-01 | 株式会社青木科学研究所 | Mold-releasing agent for oil die casting, method for setting solvent mixing ratio, casting method and spray device |
-
2009
- 2009-04-07 CN CN2009100488688A patent/CN101628459B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19824279C1 (en) * | 1998-05-28 | 1999-12-02 | Acmos Chemie Gmbh & Co | Release agent, its use and process for its production |
| CN101010156A (en) * | 2004-08-31 | 2007-08-01 | 株式会社青木科学研究所 | Mold-releasing agent for oil die casting, method for setting solvent mixing ratio, casting method and spray device |
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| CN101628459A (en) | 2010-01-20 |
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Owner name: SHANGHAI NET CHEMICAL CO., LTD. Free format text: FORMER NAME: SHANGHAI LITAI NEW MOULD MATERIAL CO., LTD. |
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Address after: 201600 Shanghai Songjiang District City Maogang town of strong Road No. 580 Patentee after: Shanghai Li Tai Chemical Co., Ltd. Address before: 201600 Shanghai Songjiang District City Maogang town of strong Road No. 580 Patentee before: Shanghai Net Chemical New Mould Materials Co., Ltd. |
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