CN109228057B - Tire release agent and preparation method thereof - Google Patents
Tire release agent and preparation method thereof Download PDFInfo
- Publication number
- CN109228057B CN109228057B CN201811251635.3A CN201811251635A CN109228057B CN 109228057 B CN109228057 B CN 109228057B CN 201811251635 A CN201811251635 A CN 201811251635A CN 109228057 B CN109228057 B CN 109228057B
- Authority
- CN
- China
- Prior art keywords
- release agent
- parts
- polydimethylsiloxane
- tire
- modified polydimethylsiloxane
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/60—Releasing, lubricating or separating agents
- B29C33/62—Releasing, lubricating or separating agents based on polymers or oligomers
- B29C33/64—Silicone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
Abstract
The invention discloses a tire release agent and a preparation method thereof, wherein the tire release agent comprises the following raw materials in parts by weight: 20-25 parts of polydimethylsiloxane emulsion, 8-15 parts of hydroxyl modified polydimethylsiloxane emulsion, 15-20 parts of long-chain alkyl modified polydimethylsiloxane, 40-55 parts of deionized water and 0.01-0.001 part of preservative. The water-based tire release agent prepared in the embodiment of the invention is a special modified organic silicon emulsion without solvent, is used for a mold, can relatively improve the dimensional precision of tire parts, obviously improves the effect of a rubber mold cleaning agent, and is suitable for the release, isolation and lubrication of molded products such as tires, rubber plates, rubber pads, rubber tubes and the like.
Description
Technical Field
The invention relates to the technical field of release agents, and particularly relates to a tire release agent and a preparation method thereof.
Background
With the development of the automobile industry, the demand of rubber tires is increasing day by day, and the demand of rubber tires is also increasing. As is known in the art, in the manufacturing process of rubber tires, i.e., during the molding of the tire by a mold, the release agent applied to the mold is not allowed to transfer to the surface of the tire, because the chemical composition of the release agent is liable to affect the tire, such as corrosion, and affect the service life of the tire. The existing tire mold release agent has the disadvantages of complicated process steps, poor storage stability, easy release of harmful substances and pollution to a mold, and transfer to a tire in the using process.
The mold release agents are generally classified into the following three types. The traditional release agent is generally an inorganic release agent, namely, the release agent is coated on the surface of a mold cavity, the release agent is also commonly called as a release agent, the product mainly comprises talcum powder, mica powder, soap, paraffin, polytetrafluoroethylene, silicon oil and the like, the talcum powder, the mica powder, the soap, the paraffin, the polytetrafluoroethylene, the silicon oil and the like which have certain release effects but are inconvenient to use and easy to be transferred to the surface of a product, and the organic release agent mainly comprises fatty acid, fatty acid soap, ethylene glycol and the like but is easy to be absorbed by rubber during vulcanization. The polymer release agent mainly comprises organic silicon polymer, organic fluorine polymer and polyvinyl alcohol. The main molecular chain of the organic silicon polymer is composed of silicon-oxygen bonds, the bond energy is high, the heat resistance and the stability are good, and the defects of thermal decomposition, carbonization and the like of a release agent can not occur.
The traditional tire release agent has the problems of thick coating layer, difficult dispersion, poor stability and the like. The emulsion containing the solvent and the reactive silicon polymer has the defects of easy mold scale and trace leaving, corrosive action on the mold, high price and the like.
Disclosure of Invention
The invention aims to provide a tire release agent and a preparation method thereof, wherein the tire release agent has the characteristics of oxidation resistance, high temperature resistance, no toxicity, no odor, no flammability, mold protection and the like. Does not react with the metal mould and the product at high temperature.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
The invention provides a tire release agent which comprises the following raw materials in parts by weight: 20-25 parts of polydimethylsiloxane emulsion, 8-15 parts of hydroxyl modified polydimethylsiloxane emulsion, 15-20 parts of long-chain alkyl modified polydimethylsiloxane, 40-55 parts of deionized water and 0.01-0.001 part of preservative.
The invention also provides a preparation method of the tire release agent, which comprises the following steps: and stirring and mixing long-chain alkyl modified polydimethylsiloxane, partial amount of deionized water, hydroxyl modified polydimethylsiloxane oil emulsion and partial amount of deionized water uniformly, adding the polydimethylsiloxane oil emulsion and the balance of deionized water, finally adding a preservative, and stirring and mixing to obtain the tire release agent.
The embodiment of the invention has the beneficial effects that:
the invention provides a tire release agent and a preparation method thereof. It is suitable for demoulding, isolating and lubricating molded products such as tyres, rubber plates, rubber pads, rubber tubes and the like.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The following is a detailed description of a tire release agent and a method for preparing the same provided by the embodiments of the present invention.
The embodiment of the invention provides a tire release agent, which comprises the following raw materials in parts by weight: 20-25 parts of polydimethylsiloxane emulsion, 8-15 parts of hydroxyl modified polydimethylsiloxane emulsion, 15-20 parts of long-chain alkyl modified polydimethylsiloxane, 40-55 parts of deionized water and 0.01-0.001 part of preservative.
The embodiment of the invention provides a tire release agent, which comprises the following raw materials in parts by weight: the tire release agent adopts the polydimethylsiloxane oil emulsion, the hydroxyl modified polydimethylsiloxane oil emulsion and the long-chain alkyl modified polydimethylsiloxane as main film forming bodies, a cross-linked film layer is easily formed on the surface of a mold, the polydimethylsiloxane oil emulsion also has a lubricating effect, the solubility of a solute in a solvent is improved through a solubilizer and forms a solution, and the preservative prolongs the storage time of the tire release agent. The cross-linked film layer can bear the scraping action and the chemical erosion action of sizing materials, has the function of multi-time vulcanization stripping, prolongs the service cycle of a die and improves the production efficiency.
The tire release agent in the embodiment of the invention has reasonable proportion of each component, and the obtained tire release agent has good release effect, and if the proportion is higher or lower than the proportion, stable emulsion cannot be formed or the stripping capability cannot be fully exerted, so that ideal release effect cannot be obtained.
In some embodiments, the polydimethylsiloxane oil emulsion comprises a weight ratio of 50-55: 5-10: 40-55: 1-5 polydimethylsiloxane: emulsifier: deionized water: the viscosity of the acid and the polydimethylsiloxane is 300-1000 mPa.s.
In the tire release agent provided by the embodiment of the invention, polydimethylsiloxane oil emulsion is added, and the polydimethylsiloxane oil emulsion comprises 300-1000mPa.s polydimethylsiloxane, an emulsifier, deionized water and acid. Wherein, the polydimethylsiloxane has very low surface tension and very high surface activity, and is very easy to spread into a film on the surface of the material, the surface tension of the polydimethylsiloxane is related to the viscosity, the viscosity of the polydimethylsiloxane used in the embodiment of the invention is 300-1000mPa.s, preferably, the viscosity of the polydimethylsiloxane is 300mPa.s, 350mPa.s, 400mPa.s, 500mPa.s, 600mPa.s, 800mPa.s or 1000mPa.s, and the like, and more preferably, the viscosity is 350 mPa.s. The polydimethylsiloxane with the viscosity value is mixed with the emulsifier, the acid and the water, the emulsified polydimethylsiloxane oil emulsion has small molecular weight and small particle size, and the prepared emulsion has good appearance, strong stability, good film forming property, good compatibility with other emulsions and improved lubricity.
In some embodiments, the hydroxy-modified polydimethylsiloxane oil emulsion comprises a weight ratio of 40-50: 5-10:45-55:1-5:5-10 hydroxyl modified polydimethylsiloxane: emulsifier: deionized water: acid: the viscosity of the solubilizer and the hydroxyl modified polydimethylsiloxane is 80000-500000 mPa.s.
The tire release agent provided by the embodiment of the invention is added with the hydroxyl modified polydimethylsiloxane emulsion, wherein the hydroxyl modified polydimethylsiloxane emulsion comprises hydroxyl modified polydimethylsiloxane with the viscosity of 80000 and 500000mPa.s, an emulsifier, deionized water, acid and a solubilizer. The hydroxyl modified polydimethylsiloxane oil emulsion has high temperature resistance, water resistance and good film forming property and smoothness, wherein the viscosity of the hydroxyl modified polydimethylsiloxane used in the embodiment of the invention is 6000-500000mPa.s, preferably the viscosity of the hydroxyl modified polydimethylsiloxane is 6000, 80000, 100000, 200000, 300000, 400000 or 500000mPa.s, and more preferably the viscosity is 80000 mPa.s. Because the influence of the hydroxyl modified polydimethylsiloxane with different viscosities on the film forming property is different, the film coating hardness is reduced along with the increase of the viscosity, the tensile strength at break and the elongation at break are increased, but the selection of the hydroxyl modified polydimethylsiloxane with overlarge viscosity can cause overlarge viscosity of the emulsion, increase emulsion particles, difficult formation of stable emulsion, even floating oil and delamination. The hydroxyl modified polydimethylsiloxane with the viscosity value is mixed with the emulsifier, the acid and the water, the molecular weight and the particle size of the emulsified hydroxyl modified polydimethylsiloxane oil emulsion are small, and the prepared emulsion has good appearance, strong stability, good film-forming property, good compatibility with other emulsions and improved lubricity.
In some embodiments, the number of alkyl groups in the long chain alkyl modified polydimethylsiloxane is from 16 to 20.
According to the tire release agent disclosed by the embodiment of the invention, long-chain alkyl modified polydimethylsiloxane is added, and the introduction of a long chain can increase a hydrophobic group, reduce water solubility, improve surface performance, prevent excessive emulsion wall hanging during emulsification, promote solid film breaking, enable foams to tend to be unstable, and facilitate defoaming. Therefore, the tire release agent in the embodiment of the invention is also added with long-chain alkyl modified polydimethylsiloxane with 16-20 alkyl groups.
In some embodiments, the emulsifier comprises 25 to 30: 50-60: 10-15 isomeric tridecanol polyoxyethylene ether-5-oxirane: isomeric tridecanol polyoxyethylene ether-9-oxirane: isomeric tridecanol polyoxyethylene ether-6-ethylene oxide.
According to the tire release agent disclosed by the embodiment of the invention, the emulsifier is added, and the emulsifier can provide an excellent emulsifying effect for a silicone oil component in the tire release agent, wherein the emulsifying effect of the emulsifier can be further ensured by adopting the components in the proportion, if the proportion of the components and the proportion of the components are changed, the effect of the emulsifier is easily reduced or changed, and if the proportion of the emulsifier is not good, the emulsion of the tire release agent is unstable, and the emulsion is easily broken and the floating oil is easily broken.
The emulsifier used in the embodiment of the invention is easy to disperse or dissolve in water, has excellent wettability, permeability and emulsibility, has less dosage than common silicone oil emulsifiers, and has good emulsifying effect and more stable emulsion. The isomeric tridecanol polyoxyethylene ether-5-ethylene oxide, isomeric tridecanol polyoxyethylene ether-6-ethylene oxide and isomeric tridecanol polyoxyethylene ether-9-ethylene oxide have the effects that the foam property and the hydrophilic-lipophilic balance value (HLB value) are gradually increased from first to last, and the emulsifier can simultaneously ensure that the emulsifier has excellent emulsification effect and good foam property and hydrophile-lipophilicity according to the weight part ratio.
In some embodiments, the acid is glacial acetic acid or citric acid, preferably glacial acetic acid.
In the tire release agent provided by the embodiment of the invention, acid is added, and the acid is glacial acetic acid or citric acid, preferably glacial acetic acid which is more convenient to prepare. Because the tire release agent is a silicone oil emulsion, the acid has the functions of adjusting the pH value of the emulsion, keeping the stability of the emulsion and improving the stripping effect.
In some embodiments, the solubilizer is at least one of glycerol, propylene glycol, isopropanol, diethylene glycol monobutyl ether, preferably glycerol.
In the tire release agent of the embodiment of the present invention, a solubilizer is added, which is a surfactant having solubilizing ability to increase the solubility of a poorly soluble component in a solution, and can enhance the solubility of other components in the tire release agent. Among them, glycerin has the most excellent solubilizing property.
In some embodiments, the preservative is an isothiazolinone.
Isothiazolinone is added to the tire release agent of the embodiment of the invention. The function of the preservative is to provide corrosion resistance to the tire release agent, prevent putrefaction and deterioration of slurry in the production process and keep the functionality of the tire release agent for a longer time.
The above embodiments of the present invention also provide preferable materials for the components of the release agent, and the components are matched with each other, so that the prepared tire release agent has excellent performance, and can improve the release efficiency and quality.
The embodiment of the invention provides a preparation method of the tire release agent, which comprises the following steps: and stirring and mixing long-chain alkyl modified polydimethylsiloxane, partial amount of deionized water, hydroxyl modified polydimethylsiloxane oil emulsion and partial amount of deionized water uniformly, adding the polydimethylsiloxane oil emulsion and the balance of deionized water, finally adding a preservative, and stirring and mixing to obtain the tire release agent.
The embodiment of the invention provides a preparation method of the tire release agent, which comprises the steps of mixing long-chain alkyl modified polydimethylsiloxane with deionized water, stirring for dissolving, mixing hydroxyl modified polydimethylsiloxane emulsion with the deionized water, stirring for dissolving, adding the polydimethylsiloxane emulsion and the deionized water, stirring for mixing, finally adding a preservative, and stirring for mixing to obtain the water-based release agent. Through the step-by-step mixing and stirring, all the components are fully mixed, and finally, the preservative is added, so that the service life of the rubber release agent is prolonged.
In some embodiments, the mixing is performed for 10-15min at ambient temperature.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
55 parts of polydimethylsiloxane and 5 parts of emulsifier, and after uniformly mixing and stirring for 30 minutes at normal temperature, slowly adding 40 parts of deionized water, uniformly stirring, and finally adding 1.5 parts of glacial acetic acid by weight to adjust the pH value, so as to obtain the polydimethylsiloxane oil emulsion.
Example 2
30 parts by weight of hydroxyl modified polydimethylsiloxane oil and 5 parts by weight of emulsifier are mixed and stirred uniformly for 20 minutes at normal temperature, 1-5 parts by weight of acid and 10 parts by weight of deionized water are added, the materials are mixed and stirred for 15 minutes at normal temperature according to the parts by weight, 55 parts by weight of deionized water is slowly added, the materials are stirred uniformly, and finally 8 parts by weight of solubilizer is added, so that the hydroxyl modified polydimethylsiloxane oil emulsion is obtained.
Example 3
And 9 parts by weight of hydroxyl modified polydimethylsiloxane oil emulsion and 8 parts by weight of deionized water are mixed and stirred uniformly according to the parts by weight, and then 25 parts by weight of polydimethylsiloxane oil emulsion and 25 parts by weight of deionized water are added, and finally 0.01 part by weight of preservative is added, so that the water-based release agent is obtained.
Example 4
18 parts of long-chain alkyl modified polydimethylsiloxane and 20 parts of deionized water are mixed and stirred uniformly according to the parts by weight at normal temperature, 25 parts of polydimethylsiloxane oil emulsion and 25 parts of deionized water are added, and finally 0.01 part of preservative is added to obtain the water-based release agent.
Example 5
18 parts of long-chain alkyl modified polydimethylsiloxane, 20 parts of deionized water, 9 parts of hydroxyl modified polydimethylsiloxane oil emulsion and 8 parts of deionized water are mixed and stirred uniformly according to the parts by weight, and then 25 parts of polydimethylsiloxane oil emulsion, 25 parts of deionized water and finally 0.01 part of preservative are added to obtain the water-based release agent.
Pouring 100-degree solid wax into a metal mold sprayed with a sample, observing the mold separation condition, and testing the standard: the metal is not corroded, the high temperature resistance is realized, the demolding effect is good, the film forming property is good, and the following table 1 shows the demolding condition in the embodiments 1-5 of the invention:
TABLE 1 demolding in inventive examples 1-5
As can be seen from table 1 above: according to the invention, the demolding effects of the samples are tested for 1 time, 3 times, 5 times, 7 times, 9 times, 11 times and 13 times in examples 1-5, the demolding performance of the polydimethylsiloxane emulsion in example 1 is slightly better than that of the hydroxyl modified polydimethylsiloxane emulsion in example 2, but the unexpected effect cannot be achieved, the demolding performance of the polydimethylsiloxane emulsion in example 3 is improved by compounding the polydimethylsiloxane emulsion and the hydroxyl modified polydimethylsiloxane emulsion, the performance of the long-chain alkyl modified polydimethylsiloxane emulsion in example 4 is slightly better than that of the hydroxyl modified polydimethylsiloxane emulsion, and the demolding effect of the compounded demolding agent of the three in example 5 is the best.
To sum up, the invention provides a tire release agent and a preparation method thereof, wherein the tire release agent comprises the following raw materials in parts by weight: 20-25 parts of polydimethylsiloxane emulsion, 8-15 parts of hydroxyl modified polydimethylsiloxane emulsion, 15-20 parts of long-chain alkyl modified polydimethylsiloxane, 40-55 parts of deionized water and 0.01-0.001 part of preservative. The water-based tire release agent prepared in the embodiment of the invention is a special modified organic silicon emulsion without solvent, is used for a mold, can relatively improve the dimensional precision of tire parts, and obviously improves the effect of a rubber mold cleaning agent. It is suitable for demoulding, isolating and lubricating molded products such as tyres, rubber plates, rubber pads, rubber tubes and the like.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1) the product adopts a pre-emulsification technology, so that the storage stability of the emulsion product is improved while the demoulding effect of the product is ensured;
2) the product takes water as a dispersion medium, does not contain an organic solvent, has stable performance of the cross-linked polymer at an operation temperature, does not release harmful substances, and is an environment-friendly product;
3) the preparation method of the product has simple process steps, does not need to use rigorous equipment and follow complex operating procedures, and can ensure that the technical effect of the product is comprehensively reflected;
4) the product is simple and convenient to use and operate, the emulsion can be directly used or diluted by water for use, and spraying or brushing can be adopted;
5) the product has stable performance, no corrosion to the die and no pollution to the die.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (9)
1. The tire release agent is characterized by comprising the following raw materials in parts by weight: 20-25 parts of polydimethylsiloxane emulsion, 8-15 parts of hydroxyl modified polydimethylsiloxane emulsion, 15-20 parts of long-chain alkyl modified polydimethylsiloxane, 40-55 parts of deionized water and 0.01-0.001 part of preservative;
the polydimethylsiloxane oil emulsion comprises the following components in a weight ratio of 50-55: 5-10: 40-55: 1-5 polydimethylsiloxane: emulsifier: deionized water: acid, wherein the viscosity of the polydimethylsiloxane is 300-1000 mPa.s;
the hydroxyl modified polydimethylsiloxane oil emulsion comprises the following components in a weight ratio of 40-50: 5-10:45-55:1-5:5-10 hydroxyl modified polydimethylsiloxane: emulsifier: deionized water: acid: the viscosity of the hydroxyl modified polydimethylsiloxane is 80000-500000 mPa.s;
the number of the alkyl groups in the long-chain alkyl modified polydimethylsiloxane is 16-20.
2. The tire release agent of claim 1, wherein the emulsifier comprises a weight ratio of 25-30: 50-60: 10-15 isomeric tridecanol polyoxyethylene ether-5-oxirane: isomeric tridecanol polyoxyethylene ether-9-oxirane: isomeric tridecanol polyoxyethylene ether-6-ethylene oxide.
3. Tyre release agent according to claim 1, characterized in that the acid is selected from glacial acetic acid or citric acid.
4. A tire release agent according to claim 3, wherein said acid is selected from glacial acetic acid.
5. The tire release agent of claim 1, wherein the solubilizing agent comprises one or more of glycerol, propylene glycol, isopropyl alcohol, and diethylene glycol monobutyl ether.
6. The tire release agent of claim 5, wherein the solubilizing agent is glycerol.
7. The tire release agent of claim 1, wherein the preservative is an isothiazolinone.
8. A method for preparing a tire release agent according to any one of claims 1 to 7, characterized by comprising the steps of:
and stirring and mixing the long-chain alkyl modified polydimethylsiloxane, part of the deionized water, the hydroxyl modified polydimethylsiloxane oil emulsion and part of the deionized water, stirring uniformly, adding the polydimethylsiloxane oil emulsion and the balance of the deionized water, finally adding the preservative, stirring and mixing to obtain the tire release agent.
9. The method for producing a tire mold release agent according to claim 8, wherein the stirring and mixing time is 10 to 15 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811251635.3A CN109228057B (en) | 2018-10-25 | 2018-10-25 | Tire release agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811251635.3A CN109228057B (en) | 2018-10-25 | 2018-10-25 | Tire release agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109228057A CN109228057A (en) | 2019-01-18 |
| CN109228057B true CN109228057B (en) | 2020-11-27 |
Family
ID=65082142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811251635.3A Active CN109228057B (en) | 2018-10-25 | 2018-10-25 | Tire release agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109228057B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567416A (en) * | 2019-08-06 | 2019-12-13 | 河南中烟工业有限责任公司 | Method for measuring aperture and cylindricity of standard constant-current hole |
| KR102204893B1 (en) * | 2019-12-02 | 2021-01-19 | 넥센타이어 주식회사 | Release agent for Tire Mold |
| CN111016017B (en) * | 2019-12-31 | 2021-10-22 | 上海凯陆高分子材料有限公司 | Material for surface treatment of vulcanization mold and preparation method and application thereof |
| CN111958891B (en) * | 2020-08-10 | 2022-06-21 | 浙江昂扬新材料科技有限公司 | Polysilane type tyre isolating agent |
| CN112831364B (en) * | 2021-02-24 | 2022-07-01 | 烟台大学 | Resin-based composite material water-based release agent and preparation method thereof |
| CN116554717A (en) * | 2023-04-27 | 2023-08-08 | 天津福尔欣汽车线缆有限公司 | Isolating agent for silicon rubber insulated automobile cable and coating process method |
-
2018
- 2018-10-25 CN CN201811251635.3A patent/CN109228057B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109228057A (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109228057B (en) | Tire release agent and preparation method thereof | |
| US4889677A (en) | Process for curing tire employing a bladder lubricant | |
| CN107384562B (en) | Aluminum alloy water-based die-casting release agent and preparation method thereof | |
| JP7462814B2 (en) | Method for producing tire molding release agent composition | |
| CN114181607A (en) | Waterborne polyurethane waterproof coating and cold preparation process thereof | |
| JPH0373317A (en) | Water mold-release-agent composition containing poly(siloxane-glycol) surface-active agent | |
| CN109320853B (en) | Ethylene propylene diene monomer and preparation method thereof | |
| CN109576043B (en) | Concrete product isolation release agent and preparation method thereof | |
| CN110281433B (en) | Release agent for rubber molding industry and preparation method thereof | |
| CN106753725B (en) | Water-based environment-friendly release agent and preparation method thereof | |
| CN108384351A (en) | A kind of preparation method and product of the aqueous damping coating with heat insulating function | |
| CN109267422B (en) | Water-based organic silicon drying cylinder stripping agent and preparation method thereof | |
| CN108774915B (en) | High-temperature-resistant anti-adhesion finishing oil | |
| US5721336A (en) | Lubricant and release agent for rubber | |
| CN111040218A (en) | Rubber release agent and preparation method thereof | |
| CN114656642B (en) | Organic fluorine-silicon emulsion release agent and preparation method thereof | |
| CN109207244B (en) | Water-based release agent for concrete prefabricated part | |
| JP4820098B2 (en) | Aqueous mold release agent composition for die casting, method for using the same, die casting method using the same, and method for producing molded article | |
| CN112608419B (en) | Hyperbranched fluorine-containing mold release agent and application thereof | |
| CN115090827A (en) | Mold release agent and preparation method thereof | |
| CN108395784A (en) | A kind of preparation method and product of suitable baking high-performance water-based damping coating material | |
| CN115161099B (en) | Silicon-based release agent for casting production and preparation method thereof | |
| CN110862861A (en) | Water-based mold release agent and preparation method thereof | |
| CN110862678A (en) | Heat-stable toughening cast blue nylon and preparation method thereof | |
| CN109291335A (en) | A kind of nanometer calcium carbonate lotion and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |