CN106626170B - Release agent, preparation method and application - Google Patents

Release agent, preparation method and application Download PDF

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Publication number
CN106626170B
CN106626170B CN201611239438.0A CN201611239438A CN106626170B CN 106626170 B CN106626170 B CN 106626170B CN 201611239438 A CN201611239438 A CN 201611239438A CN 106626170 B CN106626170 B CN 106626170B
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CN
China
Prior art keywords
release agent
parts
polyurethane
mold
component
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.)
Expired - Fee Related
Application number
CN201611239438.0A
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Chinese (zh)
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CN106626170A (en
Inventor
丑纪能
周全
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China Mingsheng Drawin Technology Investment Co Ltd
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China Mingsheng Drawin Technology Investment Co Ltd
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Priority to CN201611239438.0A priority Critical patent/CN106626170B/en
Publication of CN106626170A publication Critical patent/CN106626170A/en
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Expired - Fee Related legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/56Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/60Releasing, lubricating or separating agents
    • B29C33/62Releasing, lubricating or separating agents based on polymers or oligomers
    • B29C33/64Silicone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/56Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/58Applying the releasing agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to a kind of release agent, preparation method and application, component according to parts by weight, including 10-15 parts of hercolyn D, 30-50 parts of methyl-silicone oil, 25-45 parts of glycerine, 10-15 parts of stearate.Glycerine is as intermediate flux, there is good dissolubility to hercolyn D, methyl-silicone oil, keep the release agent to be formed highly uniform, hercolyn D can be improved the adhesive force of release agent, methyl-silicone oil can enhance the lubricity of release agent, and stearate can improve the hydrophobic ability of release agent.Such release agent is different from traditional aqueous release agent or oil-based release agent, it belongs to inertia release agent, it will not be chemically reacted with polyurethane, and it can be coated on master mold uniformly, it effectively avoids be bonded between dual-component polyurethane mold glue and master mold, has accomplished one-time cast-forming polyurethane mould.

Description

Release agent, preparation method and application
Technical field
The present invention relates to a kind of release agents, preparation method and application.
Background technique
In the industrial production, more difficult demoulding when some plastics such as phenol, epoxy, polyester, high pressure polyethylene etc. form, uses Traditional release agent tends not to meet the requirements, especially during polyurethane moulded, the selection application of new type release agent Have become indispensable important content.Polyurethane has very good adhesive property, almost has with all material well Adhesive property, therefore demoulding is a critical issue for preparing polyurethane mould.Polyurethane can be reacted with water, in aqueous release agent Water reacts with isocyanate group in polyurethane, generates carbon dioxide, causes polyurethane and master mold adhesion;Therefore it cannot use Aqueous release agent.Also contain a small amount of moisture content and reactive alcohols component in conventional oil-based release agent, can equally occur with isocyanates A degree of reaction still has a degree of adhesion in demoulding, influences to demould.And polyurethane mould manufacture requirement is very high, Entire mold has several points to destroy, and is difficult to the component prepared with it.
Summary of the invention
Based on this, the present invention provides the preparation method of a kind of release agent and release agent, this release agent can apply on master mold It covers uniformly, effectively avoids be bonded between dual-component polyurethane mold glue and master mold.
Based on this, the present invention also provides a kind of release agents to prepare the application in polyurethane mould, is conducive to prepare Polyurethane mould.
A kind of release agent, component according to parts by weight, including 10-15 parts of hercolyn D, methyl-silicone oil 30-50 Part, 25-45 parts of glycerine, 10-15 parts of stearate.
Glycerine has good dissolubility as intermediate flux, to hercolyn D, methyl-silicone oil, makes to be formed de- Mould agent is highly uniform, and hercolyn D can be improved the adhesive force of release agent, and methyl-silicone oil can enhance the lubricity of release agent, Stearate can improve the hydrophobic ability of release agent.Such release agent is different from traditional aqueous release agent or oil-based release agent, It belongs to inertia release agent, will not chemically react with polyurethane, and can coat on master mold uniformly, effectively avoids double It is be bonded between component polyurethane mold glue and master mold, be conducive to the polyurethane mould prepared.
In one of the embodiments, its component according to parts by weight, including 12-14 parts of hercolyn D, methyl silicon It is 38-40 parts oily, 33-36 parts of glycerine, 12-14 parts of stearate.
Stearate is at least one of zinc stearate and calcium stearate in one of the embodiments,.
A kind of preparation method of release agent, comprising the following steps:
According to parts by weight, by 10-15 parts of hercolyn D, 30-50 parts of methyl-silicone oil, 25-45 parts of glycerine heating It is uniformly mixed to 80-100 DEG C, obtains mixed liquor;
Mixed liquor is uniformly mixed with 10-15 parts of stearate, obtains release agent.
The preparation method of above-mentioned release agent is simple, obtained release agent can effectively avoid dual-component polyurethane mold glue with Bonding between female film is applied to mold and manufactures, there is good stripping result.
The present invention also provides a kind of release agents to prepare the application in polyurethane mould.
In one of the embodiments, using above-mentioned release agent prepare polyurethane mould method the following steps are included:
Release agent is coated on to the outer surface of master mold, then master mold is placed in external mold;
Dual-component polyurethane mold glue is injected into external mold, the component in dual-component polyurethane mold glue is polyurethane prepolymer Body, another component are curing agent, and curing molding obtains polyurethane mould.
In one of the embodiments, before master mold is moved on to the step in external mold, further comprise the steps of: master mold and pad Block is fixed, and uses sealant by the gap sealing between master mold and cushion block.
External mold is punching block or wooden model in one of the embodiments,.
The material of master mold is stone material, plastics, timber, imitative brick grain material in one of the embodiments,.
Dual-component polyurethane mold glue is the dual-component polyurethane of shore hardness 60A-90A in one of the embodiments, Glue.
Detailed description of the invention
Schematic diagram when Fig. 1 is preparation of the polyurethane mould in external mold.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating It is thorough comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases Any and all combinations of the listed item of pass.
The release agent of this preferred embodiment, component according to parts by weight, 10-15 parts of hercolyn D, methyl-silicone oil 30-50 parts, 25-45 parts of glycerine, 10-15 parts of stearate.
Glycerine has good dissolubility as intermediate flux, to hercolyn D, methyl-silicone oil, makes to be formed de- Mould agent is highly uniform, and hercolyn D can be improved the adhesive force of release agent, and methyl-silicone oil can enhance the lubricity of release agent, Stearate can improve the hydrophobic ability of release agent.Such release agent is different from traditional aqueous release agent or oil-based release agent, It belongs to inertia release agent, will not chemically react with polyurethane, and can coat on master mold uniformly, effectively avoids double It is be bonded between component polyurethane mold glue and master mold, be conducive to the polyurethane mould prepared.
Preferably, the component of release agent according to parts by weight, including 12-14 parts of hercolyn D, methyl-silicone oil 38-40 Part, 33-36 parts of glycerine, 12-14 parts of stearate.
According to this component meter, it can be dissolved between each component and be mixed into optimum degree.
Preferably, stearate is at least one of zinc stearate and calcium stearate.
Zinc stearate and calcium stearate hydrophobicity performance are preferable.
The present invention also provides the preparation method of the release agent of an above-mentioned embodiment, the preparation method the following steps are included:
According to parts by weight, by 10-15 parts of hercolyn D, 30-50 parts of methyl-silicone oil, 25-45 parts of glycerine heating To 80-100 DEG C, 8-12h is stirred, is sufficiently mixed uniformly, obtains mixed liquor;
Mixed liquor is uniformly mixed with 10-15 parts of stearate, obtains release agent.
The preparation method of above-mentioned release agent is simple, obtained release agent can effectively avoid dual-component polyurethane mold glue with Bonding between female film is applied to mold and manufactures, there is good stripping result.
The present invention also provides a kind of release agents to prepare the application in polyurethane mould.
In one of the embodiments, using above-mentioned release agent prepare polyurethane mould method the following steps are included:
Release agent is coated on to the outer surface of master mold, then master mold is placed in external mold;
Dual-component polyurethane mold glue is injected into external mold, the component in dual-component polyurethane mold glue is polyurethane prepolymer Body, another component are curing agent, and curing molding obtains polyurethane mould.
Wherein external mold includes bed die and side mode.
This release agent is preparing the application in polyurethane mould, by using release agent to dual-component polyurethane mold glue Be isolated with master mold, avoid dual-component polyurethane mold glue bonding force by force with master mold adhesion the problem of, accomplished once to pour Injection forming polyurethane mould.
In one of the embodiments, before master mold is moved on to the step in external mold, further comprise the steps of: master mold and pad Block is fixed, and uses sealant by the gap sealing between master mold and cushion block.
Wherein sealant is silicone sealant.
Different products is different to the thickness requirement of mold, by may be implemented master mold cushioning block and fixation different Thickness requirement, cushion block are generally wooden unit, and the fixed form between master mold and cushion block can fix for nailing, and close using sealant The gap between master mold and cushion block is sealed, an entirety is become.
Preferably, sealant is silicone sealant.
Preferably, master mold is the sketch plate of surface irregularity.
The sketch plate of such out-of-flatness can be required according to Building Design, be fabricated to various shape and thickness or tool is various Surface is overwrought, the mold and technique suitable for the manufacture of large size special-shaped architectural concrete plate.
Preferably, the material of master mold is stone material, plastics, timber, imitative brick grain material.
In one of the embodiments, when the material of master mold is timber, in the outer surface that release agent is coated on to master mold The step of before, further comprise the steps of: and the outer surface of master mold coating polyesters two-component woodcare paint be subjected to Seal treatment.
Wherein polyesters two-component woodcare paint can be polyurethane bicomponent woodcare paint.
Being substantially carried out closed purpose using polyesters two-component woodcare paint is the surface when using timber as master mold Hole is bigger, prevents the polyurethane mould surface layer made coarse rough.
Preferably, external mold is punching block or wooden model.
Preferably, dual-component polyurethane mold glue is the two-component polyurethane adhesive of shore hardness 60A-90A.
The following are specific embodiments:
Embodiment 1
The release agent of embodiment 1 the preparation method is as follows: hercolyn D, methyl-silicone oil, glycerine are heated to 90 DEG C stirring 10h be uniformly mixed, obtain mixed liquor, mixed liquor be uniformly mixed with zinc stearate, obtains release agent.
Wherein, the component of release agent includes 12 parts of hercolyn D according to parts by weight, and 38 parts of methyl-silicone oil, glycerine 33 parts, 12 parts of zinc stearate.
12 outer surface of master mold coating polyurethane bicomponent woodcare paint is subjected to Seal treatment, master mold 12 and cushion block 13 are consolidated It is fixed, and using silicone sealant by the gap sealing between master mold 12 and cushion block 13, release agent is coated on master mold 12 and cushion block Then 13 outer surface moves on to master mold 12 and cushion block 13 in external mold 14, the polyurethane mould glue of two-component is poured into external mold 14 In, demoulded after 10h under room temperature, polyurethane mould 13 cleaned up after demoulding it is spare, after standing 3-5 days, to urethane cures, Obtain polyurethane mould 13.
Wherein master mold material is timber.
Wherein dual-component polyurethane mold glue is purchased from Yantai Wanhua 70A model, and one of component is base polyurethane prepolymer for use as, Another component is curing agent.
Embodiment 2
The release agent of embodiment 2 the preparation method is as follows: embodiment 2 release agent preparation method and embodiment 1 demoulding The preparation method of agent is essentially identical, the difference is that, the component of release agent includes hercolyn D 14 according to parts by weight Part, 40 parts of methyl-silicone oil, 36 parts of glycerine, 14 parts of zinc stearate, hercolyn D, methyl-silicone oil, glycerine are heated to 95 DEG C stirring 12h be uniformly mixed.
The preparation method of polyurethane grinding tool is essentially identical in the preparation method with embodiment 1 of polyurethane mould in embodiment 2, The difference is that the polyurethane mould glue of two-component is poured into external mold 14,8h is demoulded under room temperature.
Embodiment 3
The release agent of embodiment 3 the preparation method is as follows: embodiment 3 release agent preparation method and embodiment 1 demoulding The preparation method of agent is essentially identical, the difference is that, zinc stearate is replaced using calcium stearate, the component of release agent is by weight Number meter includes 10 parts of hercolyn D, and 30 parts of methyl-silicone oil, 25 parts of glycerine, 10 parts of calcium stearate, hercolyn D, Methyl-silicone oil, glycerine are heated to 80 DEG C of stirring 9h and are uniformly mixed.
The preparation method of polyurethane grinding tool is essentially identical in the preparation method with embodiment 1 of polyurethane mould in embodiment 3, The difference is that the polyurethane mould glue of two-component is poured into external mold 14,12h is demoulded under room temperature.
Embodiment 4
The release agent of embodiment 4 the preparation method is as follows: embodiment 4 release agent preparation method and embodiment 1 demoulding The preparation method of agent is essentially identical, the difference is that, zinc stearate is replaced using calcium stearate, the component of release agent is by weight Number meter includes 15 parts of hercolyn D, and 50 parts of methyl-silicone oil, 45 parts of glycerine, 15 parts of calcium stearate, hercolyn D, Methyl-silicone oil, glycerine are heated to 100 DEG C of stirring 9h and are uniformly mixed.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (9)

1. a kind of release agent for polyurethane mould, which is characterized in that its component according to parts by weight, by hercolyn D 12-14 parts, 38-40 parts of methyl-silicone oil, 33-36 parts of glycerine, 12-14 parts of stearate compositions.
2. release agent according to claim 1, which is characterized in that the stearate is in zinc stearate and calcium stearate At least one.
3. a kind of preparation method of the release agent for polyurethane mould, which comprises the following steps:
According to parts by weight, 12-14 parts of hercolyn D, 38-40 parts of methyl-silicone oil, 33-36 parts of glycerine are heated to 80- 100 DEG C are uniformly mixed, and obtain mixed liquor;
The mixed liquor is uniformly mixed with 12-14 parts of stearate, obtains the release agent.
4. described in any item release agents are preparing the application in polyurethane mould according to claim 1~2.
5. release agent according to claim 4 is preparing the application in polyurethane mould, which is characterized in that including following step It is rapid:
The release agent is coated on to the outer surface of master mold, then the master mold is placed in external mold;
Dual-component polyurethane mold glue is injected into the external mold, the component in the dual-component polyurethane mold glue is polyurethane Performed polymer, another component are curing agent, and curing molding obtains polyurethane mould.
6. release agent according to claim 5 is preparing the application in polyurethane mould, which is characterized in that the external mold is Punching block or wooden model.
7. release agent according to any one of claim 4 to 6 is preparing the application in polyurethane mould, which is characterized in that It before the master mold is moved on to the step in the external mold, further comprises the steps of: and fixes the master mold with cushion block, and using close Sealing is by the gap sealing between the master mold and cushion block.
8. release agent according to claim 7 is preparing the application in polyurethane mould, it is characterised in that the material of master mold For stone material, plastics, timber, imitative brick grain material.
9. release agent according to claim 8 is preparing the application in polyurethane mould, which is characterized in that the two-component Polyurethane mould glue is the two-component polyurethane adhesive of shore hardness 60A-90A.
CN201611239438.0A 2016-12-28 2016-12-28 Release agent, preparation method and application Expired - Fee Related CN106626170B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107650307A (en) * 2017-09-21 2018-02-02 上海稳优实业有限公司 Aqueous, environmental protective releasing agent
CN108381827A (en) * 2018-03-26 2018-08-10 佛山市顺德区佳力精细化工有限公司 A kind of non-silicone oil mold release agent and preparation method thereof
CN114482540B (en) * 2021-12-28 2023-06-20 福建建工建材科技开发有限公司 Composite demolding process for UHPC clean water facing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2643384A (en) * 1983-04-13 1984-10-18 Ici Americas Inc. Polyurethanes by reaction injection molding (rim)
CN1108678A (en) * 1995-01-09 1995-09-20 北京市三原建筑粘合材料厂 Water-proof polyurethane coating film and preparation method thereof
CN105001650A (en) * 2015-06-25 2015-10-28 南京东爵新材料有限公司 Silicon rubber internal release agent and preparation method thereof
CN105014836A (en) * 2015-06-24 2015-11-04 梁胜光 Releasing agent for improving foaming phenomenon
CN105462376A (en) * 2015-12-23 2016-04-06 青岛文晟汽车零部件有限公司 Mold releasing agent

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2643384A (en) * 1983-04-13 1984-10-18 Ici Americas Inc. Polyurethanes by reaction injection molding (rim)
CN1108678A (en) * 1995-01-09 1995-09-20 北京市三原建筑粘合材料厂 Water-proof polyurethane coating film and preparation method thereof
CN105014836A (en) * 2015-06-24 2015-11-04 梁胜光 Releasing agent for improving foaming phenomenon
CN105001650A (en) * 2015-06-25 2015-10-28 南京东爵新材料有限公司 Silicon rubber internal release agent and preparation method thereof
CN105462376A (en) * 2015-12-23 2016-04-06 青岛文晟汽车零部件有限公司 Mold releasing agent

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
聚氨酯改性TDE-85/E-51 环氧树脂的固化反应;李芝华;《高分子材料科学与工程》;20090531;全文

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