Easily-cleaned rubber release agent and preparation method thereof

Abstract

The invention discloses an easy-to-clean rubber release agent and a preparation method thereof, and relates to the technical field of release agents. Comprising the following components in parts by weight: 200 to 250 parts of white oil, 10 to 40 parts of methylsilane, 10 to 40 parts of trimethylsiloxy silicon resin, 10 to 25 parts of polydimethylsiloxane, 10 to 15 parts of sodium dodecyl benzene sulfonate, 5 to 8 parts of triethanolamine dodecylbenzene sulfonate, 1 to 3 parts of modified polypropylene wax, 2 to 5 parts of heptadecafluorodecyl triethoxysilane, 1 to 4 parts of a regulator, 0.5 to 2 parts of an emulsifier and 1.5 to 2 parts of a stabilizer. 0.3 to 0.7 part of a catalyst; and 100 to 150 parts of deionized water. According to the invention, sodium dodecyl benzene sulfonate and triethanolamine dodecyl benzene sulfonate are designed, so that the easy-to-clean function of the rubber release agent is realized, the problem that the release agent is difficult to clean is solved, the adhesive force between a mold and a rubber product can be reduced, the demolding efficiency is improved, and the cleaning difficulty of the rubber release agent is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of release agents, in particular to an easy-to-clean rubber release agent and a preparation method thereof. Background Art

[0002] The working principle of rubber release agents is mainly based on isolation efficiency and lubrication effects. Release agents form a continuous isolation film between the mold and the molded product, effectively blocking direct contact between the molding material and the mold, thereby reducing friction during the demolding process and protecting the product from damage. This isolation layer is formed on the mold surface through physical adsorption or chemical reaction. There are many types of rubber release agents. According to their application method, they can be divided into external release agents and internal release agents. External release agents are directly applied to the mold cavity surface, while internal release agents are added to the rubber compound as an additive and partially migrate to the surface of the product during vulcanization to form an isolation layer. In addition, based on the surface properties of the release agent, it can be divided into fluorine-based release agents, silicone-based release agents, wax-based release agents, and surfactant-based release agents. With the development of the rubber industry, the application of rubber release agents has become increasingly extensive. They not only play an important role in the manufacturing process of rubber products, but also have extensive applications in the molding process of composite materials such as plastics, metals, and concrete. At the same time, with the increasing demand for environmental protection, non-toxic and pollution-free release agents have gradually become the mainstream products in the market.

[0003] After use, existing rubber release agents will leave residues on the surface of the mold or rubber product. The residues will affect the subsequent processing of the rubber products. At the same time, harmful chemicals or gases may be produced when cleaning the release agents, posing a threat to the health of operators. If the cleaning waste liquid is not handled properly, it may pollute the environment.

[0004] 1. Patent document CN118684840B discloses an easily separable rubber release agent and a preparation method thereof. The above patent achieves both a better demoulding effect and a service life, but the above patent cannot achieve the function of making the rubber release agent easy to clean.

[0005] 2. Patent document CN114683447B discloses a release agent for rubber processing and a preparation method thereof. The above patent achieves a significant increase in the number of demolding times during rubber demolding and improves continuous demolding performance, but the above patent cannot achieve the function of easily separating the rubber product from the mold.

[0006] 3. Patent document CN106042230B discloses a rubber release agent and its preparation method. The above patent realizes the formation of a firm and uniform isolation coating, making the mold bright and lubricated, and having a good demolding effect. Moreover, the product is non-corrosive and not easy to stain the mold. It has good water-based environmental protection and significant isolation effect. However, the above patent cannot achieve the function of improving the fluidity of rubber.

[0007] 4. Patent document CN110281433B discloses a release agent for the rubber molding industry and a preparation method thereof. The above patent makes it easy to release the finished product from the mold, makes the surface of the plastic part smooth, and prevents the rubber product from sticking to the mold. It not only has a good demolding effect, but also has a high demolding efficiency. However, the above patent cannot achieve the environmentally friendly and pollution-free function of the rubber release agent.

[0008] In summary, the above patents fail to achieve the function of easy cleaning of rubber release agents, the function of easy separation of rubber products from molds, the function of improving rubber fluidity, and the function of environmental protection and pollution-freeness of rubber release agents. As a result, the release agents are difficult to clean, defects appear during demoulding of rubber products, mold damage occurs, the rubber products adhere to the mold, demoulding becomes difficult, filling is uneven, dimensions are inaccurate, and harm is caused to operators and the environment.

[0009] To this end, the present application proposes an easy-to-clean rubber release agent and its preparation method, which can realize the function of easy cleaning of the rubber release agent, the function of easy separation of rubber products from molds, the function of improving the fluidity of rubber, and the function of environmental protection and pollution-free of the rubber release agent. Summary of the Invention

[0010] The object of the present invention is to provide an easy-to-clean rubber release agent and a preparation method thereof, so as to solve the technical problems raised in the above-mentioned background technology, namely, the failure to realize the easy-cleaning function of the rubber release agent, the failure to realize the easy separation function of the rubber product from the mold, the failure to realize the function of improving the fluidity of the rubber, and the failure to realize the environmental protection and pollution-free function of the rubber release agent, resulting in the release agent being difficult to clean, the appearance of defects in the rubber product during demolding, damage to the mold, adhesion to the mold, difficulty in demolding, uneven filling, inaccurate size, and harm to the operator and the environment.

[0011] To achieve the above object, the present invention provides the following technical solution: an easily cleanable rubber release agent, comprising the following components in parts by weight: 200 to 250 parts of white oil;

[0012] Methylsilane: 10 to 40 parts;

[0013] Trimethylsiloxy silicone resin: 10 to 40 parts;

[0014] Polydimethylsiloxane: 10 to 25 parts;

[0015] Sodium dodecylbenzenesulfonate: 10 to 16 parts;

[0016] Dodecylbenzenesulfonic acid triethanolamine salt: 5 to 8 parts;

[0017] Modified polypropylene wax: 1 to 3 parts;

[0018] Heptadecafluorodecyltriethoxysilane: 2-5 parts;

[0019] Regulator: 1-4 parts;

[0020] Emulsifier: 0.5-2 parts;

[0021] Stabilizer: 1.5-2 parts;

[0022] Catalyst: 0.3-0.7 parts;

[0023] Deionized water: 100-150 parts.

[0024] Preferably, the weight parts component ratio of sodium dodecyl benzene sulfonate and triethanolamine dodecyl benzene sulfonate is 2:1.

[0025] Preferably, the preparation method of the modified polypropylene wax is to put polypropylene, anti-aging agent and allyl trimethyl silane into a mixer, add dibenzoyl peroxide, mix for 10-15 min at a temperature of 190-200℃, then keep the temperature unchanged, add low-temperature resistant auxiliary agent and melt mix for 30-40 min, cool to 180℃ and discharge to obtain the modified polypropylene wax.

[0026] Preferably, the regulator is triethanolamine.

[0027] Preferably, the emulsifier is cetyl trimethyl ammonium bromide and alkyl phenol polyoxyethylene ether, and the weight parts component ratio is 1:1.

[0028] Preferably, the stabilizer is ethyl silicate.

[0029] Preferably, the catalyst is hydrochloric acid.

[0030] Preferably, the anti-aging agent is dodecyl hydroxy indenylquinol ether.

[0031] Preferably, the weight parts component ratio of polypropylene, anti-aging agent and allyl trimethyl silane is 2:1:1.

[0032] Preferably, the preparation method is:

[0033] S1: methyl silane, trimethyl siloxy silicone resin, polydimethylsiloxane and white oil are added into a reaction kettle to form a mixture A;

[0034] S2: sodium dodecyl benzene sulfonate, triethanolamine dodecyl benzene sulfonate and emulsifier are added into the reaction kettle and reacted for 2 h at a temperature of 85℃;

[0035] S3: after the reaction is completed, heptadecafluorodecyltriethoxysilane, regulator and catalyst are added and reacted for 1 h at a temperature of 120℃.

[0036] S4: Add modified polypropylene wax and stabilizer and react at 190°C for 25 minutes;

[0037] S5: Add deionized water and stir thoroughly to prepare a rubber release agent.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The present invention, by designing triethanolamine dodecylbenzenesulfonate and sodium dodecylbenzenesulfonate, realizes the function of easy cleaning of the rubber release agent, solves the problem that the release agent is difficult to clean, can reduce the adhesion between the mold and the rubber product, improves the demoulding efficiency, reduces the difficulty of cleaning the rubber release agent, and reduces the cost of subsequent processing;

[0040] 2. The present invention incorporates heptadecafluorodecyltriethoxysilane to facilitate separation of the rubber product from the mold, solving the problems of defects, mold damage, and mold adhesion during demolding. It also reduces adhesion between the rubber and the mold, enhances the anti-fouling properties of the rubber product, and reduces the difficulty of subsequent processing of the rubber product.

[0041] 3. The present invention improves the fluidity of rubber by designing modified polypropylene wax, solving the problems of difficult demoulding, uneven filling, and inaccurate dimensions of rubber products. It can prevent surface defects and damage, improve the surface finish of rubber products, reduce demoulding difficulty, and increase the yield rate of rubber products.

[0042] 4. The present invention realizes the environmentally friendly and pollution-free function of the rubber release agent by designing methylsilane, trimethylsiloxy silicone resin and polydimethylsiloxane, solves the problem that the release agent produces harmful substances during use and cleaning, causing harm to operators and the environment, can reduce the emission of harmful substances, improve sustainable development capabilities, extend the service life of the mold, and reduce harm to the health of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the components of the present invention;

[0044] Figure 2 Schematic diagram of the preparation process of the rubber release agent of the present invention. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] Example 1: Please refer to Figure 1 and Figure 2 , an easy-to-clean rubber release agent, comprising the following components in parts by weight: white oil: 200 parts;

[0047] Methylsilane: 20 parts;

[0048] Trimethylsiloxy silicone resin: 20 parts;

[0049] Polydimethylsiloxane: 15 parts;

[0050] Sodium dodecylbenzenesulfonate: 14 parts;

[0051] Dodecylbenzenesulfonic acid triethanolamine salt: 7 parts;

[0052] Modified polypropylene wax: 3 parts;

[0053] Heptadecafluorodecyltriethoxysilane: 4 parts;

[0054] Conditioner: 2 parts;

[0055] Emulsifier: 0.8 parts;

[0056] Stabilizer: 1.6 parts;

[0057] Catalyst: 0.5 parts;

[0058] Deionized water: 120 parts;

[0059] The weight ratio of sodium dodecylbenzenesulfonate and triethanolamine dodecylbenzenesulfonate is 2:1;

[0060] The preparation method of the modified polypropylene wax comprises the following steps: placing polypropylene, an anti-aging agent and allyloxytrimethylsilane into a mixer, adding dibenzoyl peroxide, mixing at a temperature of 190° C. to 200° C. for 10 to 15 minutes, maintaining the temperature unchanged, adding a low-temperature resistant additive, melting and mixing for 30 to 40 minutes, cooling to 180° C. and discharging to obtain the modified polypropylene wax;

[0061] The regulator is triethanolamine;

[0062] The emulsifier is a mixture of cetyltrimethylammonium bromide and alkylphenol polyoxyethylene ether, with a weight ratio of 1:1;

[0063] The stabilizer is ethyl silicate;

[0064] The catalyst is: hydrochloric acid;

[0065] The anti-aging agent is dodecyl hydroxyindenequinone ether;

[0066] The weight ratio of the polypropylene, the anti-aging agent and the allyloxytrimethylsilane is 2:1:1;

[0067] Further, 200 parts of white oil, 20 parts of methylsilane, 20 parts of trimethylsiloxy silicone resin, 15 parts of polydimethylsiloxane, 14 parts of sodium dodecylbenzenesulfonate, 7 parts of triethanolamine dodecylbenzenesulfonate, 3 parts of modified polypropylene wax, 4 parts of heptafluorodecyltriethoxysilane, 2 parts of a regulator, 0.8 parts of an emulsifier, 1.6 parts of a stabilizer, 0.5 parts of a catalyst and 120 parts of deionized water were prepared, methylsilane, trimethylsiloxy silicone resin, polydimethylsiloxane and white oil were added to a reactor and mixed to form a mixture A, and ten parts of the mixture were added. Sodium dialkylbenzenesulfonate, triethanolamine dodecylbenzenesulfonate and emulsifier were added to the reactor and reacted at 85°C for 2h. After the reaction was completed, heptafluorodecyltriethoxysilane, a regulator and a catalyst were added and reacted at 120°C for 1h. Modified polypropylene wax and a stabilizer were added and reacted at 190°C for 25min. Deionized water was added and stirred thoroughly to prepare a rubber release agent. Sodium dodecylbenzenesulfonate is a common anionic surfactant that can reduce the oil-water interface. Tension, triethanolamine dodecylbenzenesulfonate has good water solubility, surface activity, stability, biodegradability, and excellent emulsification, dispersion and solubilization properties. Heptafluorodecyltriethoxysilane is an organosilicon compound with a special structure. Its molecule contains a large number of fluorine atoms, which has good chemical stability and weather resistance. At the same time, the silicon-oxygen bond structure in the molecule makes it an excellent coupling agent, capable of forming good chemical bonds with a variety of materials. Modified polypropylene wax has good dispersibility and lubricity, which can improve the fluidity of rubber and form a protective layer on the surface of rubber products, extending the service life of the rubber. Methylsilane and trimethylsiloxy silicone resin as organosilicon materials can achieve anti-adhesion through hydrolysis film formation. Polydimethylsiloxane as an organosilicon polymer compound can reduce the friction between rubber products and mold surfaces. Methylsilane, trimethylsiloxy silicone resin and polydimethylsiloxane are all non-toxic and non-irritating materials. The prepared release agent will not cause harm to the human body and the environment, and the problem of handling the cleaning fluid after cleaning can be solved.

[0068] Example 2: Please refer to Figure 1 and Figure 2 , an easy-to-clean rubber release agent, comprising the following components in parts by weight: white oil: 200 parts;

[0069] Methylsilane: 20 parts;

[0070] Trimethylsiloxy silicone resin: 20 parts;

[0071] Polydimethylsiloxane: 15 parts;

[0072] Sodium dodecylbenzenesulfonate: 14 parts;

[0073] Dodecylbenzenesulfonic acid triethanolamine salt: 7 parts;

[0074] Modified polypropylene wax: 3 parts;

[0075] Heptadecafluorodecyltriethoxysilane: 4 parts;

[0076] Conditioner: 2 parts;

[0077] Emulsifier: 0.8 parts;

[0078] Stabilizer: 1.6 parts;

[0079] Catalyst: 0.5 parts;

[0080] Deionized water: 120 parts;

[0081] The weight ratio of sodium dodecylbenzenesulfonate and triethanolamine dodecylbenzenesulfonate is 2:1;

[0082] The preparation method of the modified polypropylene wax comprises the following steps: placing polypropylene, an anti-aging agent and allyloxytrimethylsilane into a mixer, adding dibenzoyl peroxide, mixing at a temperature of 190° C. to 200° C. for 10 to 15 minutes, maintaining the temperature unchanged, adding a low-temperature resistant additive, melting and mixing for 30 to 40 minutes, cooling to 180° C. and discharging to obtain the modified polypropylene wax;

[0083] The regulator is triethanolamine;

[0084] The emulsifier is a mixture of cetyltrimethylammonium bromide and alkylphenol polyoxyethylene ether, with a weight ratio of 1:1;

[0085] The stabilizer is ethyl silicate;

[0086] The catalyst is: hydrochloric acid;

[0087] The anti-aging agent is dodecyl hydroxyindenequinone ether;

[0088] The weight ratio of the polypropylene, the anti-aging agent and the allyloxytrimethylsilane is 2:1:1;

[0089] Further, 200 parts of white oil, 20 parts of methylsilane, 20 parts of trimethylsiloxy silicone resin, 15 parts of polydimethylsiloxane, 14 parts of sodium dodecylbenzenesulfonate, 3 parts of modified polypropylene wax, 4 parts of heptadecafluorodecyltriethoxysilane, 2 parts of regulator, 0.8 parts of emulsifier, 1.6 parts of stabilizer, 0.5 parts of catalyst and 120 parts of deionized water were prepared, methylsilane, trimethylsiloxy silicone resin, polydimethylsiloxane and white oil were added to a reactor and mixed to form a mixture A, sodium dodecylbenzenesulfonate and emulsifier were added to the reactor, reacted at a temperature of 85°C for 2h, after the reaction was completed, heptadecafluorodecyltriethoxysilane, regulator and catalyst were added, reacted at a temperature of 120°C for 1h, modified polypropylene wax and stabilizer were added, reacted at a temperature of 190°C for 25min, deionized water was added and fully stirred and mixed to obtain a rubber release agent.

[0090] Example 3: Please refer to Figure 1 and Figure 2 , an easy-to-clean rubber release agent, comprising the following components in parts by weight: white oil: 200 parts;

[0091] Methylsilane: 20 parts;

[0092] Trimethylsiloxy silicone resin: 20 parts;

[0093] Polydimethylsiloxane: 15 parts;

[0094] Sodium dodecylbenzenesulfonate: 14 parts;

[0095] Dodecylbenzenesulfonic acid triethanolamine salt: 7 parts;

[0096] Modified polypropylene wax: 3 parts;

[0097] Heptadecafluorodecyltriethoxysilane: 4 parts;

[0098] Conditioner: 2 parts;

[0099] Emulsifier: 0.8 parts;

[0100] Stabilizer: 1.6 parts;

[0101] Catalyst: 0.5 parts;

[0102] Deionized water: 120 parts;

[0103] The weight ratio of sodium dodecylbenzenesulfonate and triethanolamine dodecylbenzenesulfonate is 2:1;

[0104] The preparation method of the modified polypropylene wax comprises the following steps: placing polypropylene, an anti-aging agent and allyloxytrimethylsilane into a mixer, adding dibenzoyl peroxide, mixing at a temperature of 190° C. to 200° C. for 10 to 15 minutes, maintaining the temperature unchanged, adding a low-temperature resistant additive, melting and mixing for 30 to 40 minutes, cooling to 180° C. and discharging to obtain the modified polypropylene wax;

[0105] The regulator is triethanolamine;

[0106] The emulsifier is a mixture of cetyltrimethylammonium bromide and alkylphenol polyoxyethylene ether, with a weight ratio of 1:1;

[0107] The stabilizer is ethyl silicate;

[0108] The catalyst is: hydrochloric acid;

[0109] The anti-aging agent is dodecyl hydroxyindenequinone ether;

[0110] The weight ratio of the polypropylene, the anti-aging agent and the allyloxytrimethylsilane is 2:1:1;

[0111] Further, 200 parts of white oil, 20 parts of methylsilane, 20 parts of trimethylsiloxy silicone resin, 15 parts of polydimethylsiloxane, 7 parts of triethanolamine salt of dodecylbenzenesulfonate, 3 parts of modified polypropylene wax, 4 parts of heptadecafluorodecyltriethoxysilane, 2 parts of regulator, 0.8 parts of emulsifier, 1.6 parts of stabilizer, 0.5 parts of catalyst and 120 parts of deionized water were prepared, methylsilane, trimethylsiloxy silicone resin, polydimethylsiloxane and white oil were added to a reactor and mixed to form a mixture A, triethanolamine salt of dodecylbenzenesulfonate and emulsifier were added to the reactor, reacted at a temperature of 85°C for 2h, after the reaction was completed, heptadecafluorodecyltriethoxysilane, regulator and catalyst were added, reacted at a temperature of 120°C for 1h, modified polypropylene wax and stabilizer were added, reacted at a temperature of 190°C for 25min, deionized water was added and fully stirred and mixed to prepare a rubber release agent.

[0112] Example 4: Please refer to Figure 1 and Figure 2 , an easy-to-clean rubber release agent, comprising the following components in parts by weight: white oil: 200 parts;

[0113] Methylsilane: 20 parts;

[0114] Trimethylsiloxy silicone resin: 20 parts;

[0115] Polydimethylsiloxane: 15 parts;

[0116] Sodium dodecylbenzenesulfonate: 14 parts;

[0117] Dodecylbenzenesulfonic acid triethanolamine salt: 7 parts;

[0118] Modified polypropylene wax: 3 parts;

[0119] Heptadecafluorodecyltriethoxysilane: 4 parts;

[0120] Conditioner: 2 parts;

[0121] Emulsifier: 0.8 parts;

[0122] Stabilizer: 1.6 parts;

[0123] Catalyst: 0.5 parts;

[0124] Deionized water: 120 parts;

[0125] The weight ratio of sodium dodecylbenzenesulfonate and triethanolamine dodecylbenzenesulfonate is 2:1;

[0126] The preparation method of the modified polypropylene wax comprises the following steps: placing polypropylene, an anti-aging agent and allyloxytrimethylsilane into a mixer, adding dibenzoyl peroxide, mixing at a temperature of 190° C. to 200° C. for 10 to 15 minutes, maintaining the temperature unchanged, adding a low-temperature resistant additive, melting and mixing for 30 to 40 minutes, cooling to 180° C. and discharging to obtain the modified polypropylene wax;

[0127] The regulator is triethanolamine;

[0128] The emulsifier is a mixture of cetyltrimethylammonium bromide and alkylphenol polyoxyethylene ether, with a weight ratio of 1:1;

[0129] The stabilizer is ethyl silicate;

[0130] The catalyst is: hydrochloric acid;

[0131] The anti-aging agent is dodecyl hydroxyindenequinone ether;

[0132] The weight ratio of the polypropylene, the anti-aging agent and the allyloxytrimethylsilane is 2:1:1;

[0133] Further, 200 parts of white oil, 20 parts of methylsilane, 20 parts of trimethylsiloxy silicone resin, 15 parts of polydimethylsiloxane, 3 parts of modified polypropylene wax, 4 parts of heptafluorodecyl triethoxysilane, 2 parts of regulator, 0.8 parts of emulsifier, 1.6 parts of stabilizer, 0.5 parts of catalyst and 120 parts of deionized water were prepared, methylsilane, trimethylsiloxy silicone resin, polydimethylsiloxane and white oil were added to the reactor and mixed to form a mixture A, heptafluorodecyl triethoxysilane, emulsifier, regulator and catalyst were added, and the mixture was reacted at a temperature of 120°C for 1h, modified polypropylene wax and stabilizer were added, and the mixture was reacted at a temperature of 190°C for 25min, and deionized water was added and fully stirred and mixed to prepare a rubber release agent.

[0134] Example 5: Please refer to Figure 1 and Figure 2 , an easy-to-clean rubber release agent, comprising the following components in parts by weight: white oil: 200 parts;

[0135] Methylsilane: 20 parts;

[0136] Trimethylsiloxy silicone resin: 20 parts;

[0137] Polydimethylsiloxane: 15 parts;

[0138] Sodium dodecylbenzenesulfonate: 14 parts;

[0139] Dodecylbenzenesulfonic acid triethanolamine salt: 7 parts;

[0140] Modified polypropylene wax: 3 parts;

[0141] Heptadecafluorodecyltriethoxysilane: 4 parts;

[0142] Conditioner: 2 parts;

[0143] Emulsifier: 0.8 parts;

[0144] Stabilizer: 1.6 parts;

[0145] Catalyst: 0.5 parts;

[0146] Deionized water: 120 parts;

[0147] The weight ratio of sodium dodecylbenzenesulfonate and triethanolamine dodecylbenzenesulfonate is 2:1;

[0148] The preparation method of the modified polypropylene wax comprises the following steps: placing polypropylene, an anti-aging agent and allyloxytrimethylsilane into a mixer, adding dibenzoyl peroxide, mixing at a temperature of 190° C. to 200° C. for 10 to 15 minutes, maintaining the temperature unchanged, adding a low-temperature resistant additive, melting and mixing for 30 to 40 minutes, cooling to 180° C. and discharging to obtain the modified polypropylene wax;

[0149] the adjusting agent is triethanolamine;

[0150] the emulsifier is a mixture of cetyltrimethylammonium bromide and alkylphenol polyoxyethylene ether, with a weight ratio of 1:1;

[0151] the stabilizer is ethyl silicate;

[0152] the catalyst is hydrochloric acid;

[0153] the anti-aging agent is dodecylhydroxyindanone ether;

[0154] the weight ratio of polypropylene, anti-aging agent and allyloxytrimethylsilane is 2:1:1;

[0155] Further, 200 parts of white oil, 20 parts of methylsilane, 20 parts of trimethylsiloxy silicone resin, 15 parts of polydimethylsiloxane, 14 parts of sodium dodecylbenzenesulfonate, 7 parts of triethanolamine dodecylbenzenesulfonate, 3 parts of modified polypropylene wax, 2 parts of adjusting agent, 0.8 parts of emulsifier, 1.6 parts of stabilizer and 120 parts of deionized water are prepared. Methylsilane, trimethylsiloxy silicone resin, polydimethylsiloxane and white oil are mixed in a reaction kettle to form a mixture A. Sodium dodecylbenzenesulfonate, triethanolamine dodecylbenzenesulfonate and emulsifier are added to the reaction kettle and reacted at a temperature of 85°C for 2h. After the reaction is completed, modified polypropylene wax, adjusting agent and stabilizer are added and reacted at a temperature of 190°C for 25min. Deionized water is added and mixed by stirring to prepare a rubber release agent.

[0156] Example 6: Please refer to Figure 1 and Figure 2 A kind of easy-to-clean rubber release agent, comprising the following components by weight: white oil: 200 parts;

[0157] Methylsilane: 20 parts;

[0158] Trimethylsiloxy silicone resin: 20 parts;

[0159] Polydimethylsiloxane: 15 parts;

[0160] Sodium dodecylbenzenesulfonate: 14 parts;

[0161] Triethanolamine dodecylbenzenesulfonate: 7 parts;

[0162] Modified polypropylene wax: 3 parts;

[0163] Heptadecafluorodecyltriethoxysilane: 4 parts;

[0164] Adjusting agent: 2 parts;

[0165] Emulsifier: 0.8 parts;

[0166] Stabilizer: 1.6 parts;

[0167] Catalyst: 0.5 parts;

[0168] Deionized water: 120 parts;

[0169] The weight ratio of sodium dodecylbenzenesulfonate and triethanolamine dodecylbenzenesulfonate is 2:1;

[0170] The preparation method of the modified polypropylene wax comprises the following steps: placing polypropylene, an anti-aging agent and allyloxytrimethylsilane into a mixer, adding dibenzoyl peroxide, mixing at a temperature of 190° C. to 200° C. for 10 to 15 minutes, maintaining the temperature unchanged, adding a low-temperature resistant additive, melting and mixing for 30 to 40 minutes, cooling to 180° C. and discharging to obtain the modified polypropylene wax;

[0171] The regulator is triethanolamine;

[0172] The emulsifier is a mixture of cetyltrimethylammonium bromide and alkylphenol polyoxyethylene ether, with a weight ratio of 1:1;

[0173] The stabilizer is ethyl silicate;

[0174] The catalyst is: hydrochloric acid;

[0175] The anti-aging agent is dodecyl hydroxyindenequinone ether;

[0176] The weight ratio of the polypropylene, the anti-aging agent and the allyloxytrimethylsilane is 2:1:1;

[0177] Further, 200 parts of white oil, 20 parts of methylsilane, 20 parts of trimethylsiloxy silicone resin, 15 parts of polydimethylsiloxane, 14 parts of sodium dodecylbenzenesulfonate, 7 parts of triethanolamine dodecylbenzenesulfonate, 4 parts of heptadecafluorodecyltriethoxysilane, 2 parts of a regulator, 0.8 parts of an emulsifier, 1.6 parts of a stabilizer, 0.5 parts of a catalyst and 120 parts of deionized water were prepared, and the methylsilane, trimethylsiloxy silicone resin, polydimethylsiloxane and white oil were added to a reactor and mixed to form a mixture A, and sodium dodecylbenzenesulfonate, triethanolamine dodecylbenzenesulfonate and an emulsifier were added to the reactor and reacted at a temperature of 85° C. for 2 hours. After the reaction was completed, heptadecafluorodecyltriethoxysilane, a regulator, a catalyst and a stabilizer were added, and the reaction was carried out at a temperature of 190° C. for 25 minutes. Deionized water was added and the mixture was fully stirred and mixed to obtain a rubber release agent.

[0178] Control group: see Figure 1 and Figure 2, an easy-to-clean rubber release agent, comprising the following components in parts by weight: white oil: 200 parts;

[0179] Methylsilane: 20 parts;

[0180] Trimethylsiloxy silicone resin: 20 parts;

[0181] Polydimethylsiloxane: 15 parts;

[0182] Sodium dodecylbenzenesulfonate: 14 parts;

[0183] Dodecylbenzenesulfonic acid triethanolamine salt: 7 parts;

[0184] Modified polypropylene wax: 3 parts;

[0185] Heptadecafluorodecyltriethoxysilane: 4 parts;

[0186] Conditioner: 2 parts;

[0187] Emulsifier: 0.8 parts;

[0188] Stabilizer: 1.6 parts;

[0189] Catalyst: 0.5 parts;

[0190] Deionized water: 120 parts;

[0191] The weight ratio of sodium dodecylbenzenesulfonate and triethanolamine dodecylbenzenesulfonate is 2:1;

[0192] The preparation method of the modified polypropylene wax comprises the following steps: placing polypropylene, an anti-aging agent and allyloxytrimethylsilane into a mixer, adding dibenzoyl peroxide, mixing at a temperature of 190° C. to 200° C. for 10 to 15 minutes, maintaining the temperature unchanged, adding a low-temperature resistant additive, melting and mixing for 30 to 40 minutes, cooling to 180° C. and discharging to obtain the modified polypropylene wax;

[0193] The regulator is triethanolamine;

[0194] The emulsifier is a mixture of cetyltrimethylammonium bromide and alkylphenol polyoxyethylene ether, with a weight ratio of 1:1;

[0195] The stabilizer is ethyl silicate;

[0196] The catalyst is: hydrochloric acid;

[0197] The anti-aging agent is dodecyl hydroxyindenequinone ether;

[0198] The weight ratio of the polypropylene, the anti-aging agent and the allyloxytrimethylsilane is 2:1:1;

[0199] Furthermore, 200 parts of white oil, 20 parts of methylsilane, 20 parts of trimethylsiloxy silicone resin, 15 parts of polydimethylsiloxane, 2 parts of regulator, 0.8 parts of emulsifier, 1.6 parts of stabilizer and 120 parts of deionized water were prepared, methylsilane, trimethylsiloxy silicone resin, polydimethylsiloxane and white oil were added to a reactor and mixed, emulsifier, regulator and stabilizer were added in sequence to react, deionized water was added and thoroughly stirred and mixed to prepare a rubber release agent.

[0200] Performance Testing

[0201] Test 1: 10 portions of the rubber release agents prepared in each example and the control group were prepared, and the prepared release agents were left to stand at room temperature for one month to observe whether delamination occurred.

[0202] Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 control group stability Unstratified Unstratified Unstratified Unstratified Unstratified Unstratified Layering

[0203] Test 2: 10 parts of the rubber release agent prepared in each example and the control group were prepared, and the pour point of the release agent was measured according to the petroleum product pour point test method described in GB / T510-2018.

[0204] Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 control group Freezing point / ℃ 10 12 13 12 15 14 23

[0205] Test 3: Prepare 10 portions of the rubber release agent prepared in each example and the control group, heat the rubber release agent until the liquid surface does not move, and record the temperature as the high temperature resistance temperature of the banana release agent.

[0206] Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 control group Heat-resistant temperature / ℃ 305 303 302 302 302 295 291

[0207] Test 4: Heat the aluminum casting mold to 80°C, evenly apply the rubber release agent prepared in each embodiment and the control group to the mold surface, pour in styrene-butadiene rubber after drying with a spray gun, let it stand for 20 minutes, then open the mold and remove the styrene-butadiene rubber product. Repeat the demolding process and count the number of demolding attempts until any of the following conditions occur: the upper and lower molds cannot be quickly demolded, there is product residue on the mold surface, the product surface is uneven, or the surface or edges of the product are damaged. Stop demolding. Repeat each treatment six times, and take the average of the number of attempts.

[0208] Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 control group Demolding times / times 17 16 15 15 16 14 5

[0209] Test 5: Heat the aluminum casting mold to 80°C, evenly apply the rubber release agent prepared in each example and the control group to the mold surface, blow dry with a spray gun, pour in styrene-butadiene rubber, let it stand for 20 minutes, open the mold and remove the styrene-butadiene rubber product, soak the mold in 60°C hot water for 10 minutes, add detergent and scrub with a sponge, record the time it takes for the rubber release agent to soften and separate from the mold surface, repeat this operation four times, and take the average value.

[0210] Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 control group Time / min 2 3 3 4 3 4 7

[0211] Working principle: prepare 200 to 250 parts of white oil, 10 to 40 parts of methyl silane, 10 to 40 parts of trimethylsiloxy silicone resin, 10 to 25 parts of polydimethylsiloxane, 10 to 16 parts of sodium dodecylbenzenesulfonate, 5 to 8 parts of triethanolamine dodecylbenzenesulfonate, 1 to 3 parts of modified polypropylene wax, 2 to 5 parts of heptafluorodecyl triethoxysilane, 1 to 4 parts of regulator, 0.5 to 2 parts of emulsifier, 1.5 to 2 parts of stabilizer, 0.3 to 0.7 parts of catalyst and 100 to 150 parts of deionized water, and mix methyl silane, trimethylsiloxy silicone resin, polydimethylsiloxane. Silicone and white oil are added to a reactor and mixed to form a mixture A, sodium dodecylbenzenesulfonate, triethanolamine dodecylbenzenesulfonate and an emulsifier are added to the reactor, and the weight ratio of sodium dodecylbenzenesulfonate to triethanolamine dodecylbenzenesulfonate is 1:1. The mixture is reacted at a temperature of 85°C for 2 hours. After the reaction is completed, heptafluorodecyltriethoxysilane, a regulator and a catalyst are added, and the mixture is reacted at a temperature of 120°C for 1 hour. Modified polypropylene wax and a stabilizer are added, and the mixture is reacted at a temperature of 190°C for 25 minutes. Deionized water is added and the mixture is fully stirred and mixed to prepare a rubber release agent.

[0212] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An easy-to-clean rubber release agent, characterized in that: The invention comprises the following components in parts by weight: white oil: 200 to 250 parts; Methylsilane: 10 to 40 parts; Trimethylsiloxy silicone resin: 10 to 40 parts; Polydimethylsiloxane: 10 to 25 parts; Sodium dodecylbenzenesulfonate: 10 to 16 parts; Dodecylbenzenesulfonic acid triethanolamine salt: 5 to 8 parts; Modified polypropylene wax: 1 to 3 parts; Heptadecafluorodecyltriethoxysilane: 2 to 5 parts; Regulator: 1 to 4 parts; Emulsifier: 0.5 to 2 parts; Stabilizer: 1.5 to 2 parts; Catalyst: 0.3 to 0.7 parts; Deionized water: 100 to 150 parts.

2. The easily cleanable rubber release agent according to claim 1, characterized in that: The weight ratio of the sodium dodecylbenzenesulfonate and triethanolamine dodecylbenzenesulfonate is 2:

1.

3. The easily cleanable rubber release agent according to claim 1, characterized in that: The preparation method of the modified polypropylene wax comprises the following steps: placing polypropylene, an anti-aging agent and allyloxytrimethylsilane into a mixer, adding dibenzoyl peroxide, mixing at a temperature of 190° C. to 200° C. for 10 to 15 minutes, adding a low-temperature resistant auxiliary agent, melting and mixing for 30 to 40 minutes while maintaining the temperature, cooling to 180° C. and discharging to obtain the modified polypropylene wax.

4. The easily cleanable rubber release agent according to claim 1, characterized in that: The regulator is triethanolamine.

5. The easily cleanable rubber release agent according to claim 1, characterized in that: The emulsifier is cetyltrimethylammonium bromide and alkylphenol polyoxyethylene ether, and the weight ratio of the components is 1:

1.

6. The easily cleanable rubber release agent according to claim 1, characterized in that: The stabilizer is ethyl silicate.

7. The easily cleanable rubber release agent according to claim 1, characterized in that: The catalyst is hydrochloric acid.

8. The easily cleanable rubber release agent according to claim 3, characterized in that: The anti-aging agent is dodecyl hydroxyindenequinone ether.

9. The easily cleanable rubber release agent according to claim 3, characterized in that: The weight ratio of the polypropylene, the anti-aging agent and allyloxytrimethylsilane is 2:1:

1.

10. A method for preparing an easily cleanable rubber release agent, suitable for the easily cleanable rubber release agent according to any one of claims 1 to 9, characterized in that: The preparation method is: S1: adding methylsilane, trimethylsiloxy silicone resin, polydimethylsiloxane and white oil into a reaction kettle and mixing to form a mixture A; S2: Sodium dodecylbenzenesulfonate, triethanolamine dodecylbenzenesulfonate and emulsifier were added to the reactor and reacted at 85°C for 2 hours; S3: After the reaction is completed, heptafluorodecyltriethoxysilane, a regulator and a catalyst are added and the reaction is carried out at a temperature of 120° C. for 1 hour; S4: Add modified polypropylene wax and stabilizer and react at 190°C for 25 minutes; S5: Add deionized water and stir thoroughly to prepare a rubber release agent.

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