Massager with massage function and preparation method thereof

Abstract

The invention relates to the field of personal care electric appliances, in particular to a massager with a massage function and a preparation method of the massager. Comprising the following steps: 1) weighing raw silicone rubber, PUR, a compatilizer and a reinforcing agent in percentage by weight, heating, uniformly mixing, and cooling to obtain a mixture A; adding hydrogen-containing silicone oil and a vulcanizing agent into the mixture A, and uniformly mixing to obtain a PIR-silica gel mixture; (2) filling a mold with the PIR-silica gel mixture, carrying out mold pressing to form a bottom blank, and enabling the bottom blank to be concavely provided with an accommodating cavity; (3) the massage electronic component is placed in the containing cavity, then the PIR-silica gel mixture is supplemented, the massage electronic component is completely covered and subjected to mold pressing, and a massager blank is formed; 4, the massager blank with the mold is subjected to vulcanization, cooling and demolding, and the massager is obtained.By means of the technology, the massager is not prone to being stained with dust, grease and the like in the using process, easy to clean and soft and skin-friendly, and the practicability of the massager is improved.

Description

Technical Field

[0001] The present application relates to the field of personal care electrical appliances, and more specifically, to a massager with a massage function and a preparation method thereof. Background Art

[0002] A massager, also known as a massage instrument, is an electronic device that stimulates the human body's acupuncture points, muscles or nerves in different ways to achieve the effects of relaxation, relieving fatigue, relieving muscle tension, and promoting blood circulation.

[0003] With the continuous advancement of science and technology, massagers have developed into super-diversified and multifunctional. At present, there are corresponding massagers for different parts of the human body, such as the back, waist, cervical vertebrae, breasts, etc. The massagers can better promote blood circulation, relieve fatigue, relax muscles and tendons, and can also make the body fully relax.

[0004] For example, a breast massager is usually set in the shape of a hand, which can massage the breast, and the outer shell of the silicone material can achieve a better soft and skin-friendly effect. However, the massager is usually assembled, and there are gaps in the outer shell, so it is easy to trap dirt during use, which is inconvenient to clean, and further research is needed. Summary of the invention

[0005] In order to improve the anti-cleaning property of the massager and obtain better softness and skin-friendliness, the present application provides a massager with massage function and a preparation method thereof.

[0006] In a first aspect, the present application provides a method for preparing a massager with a massage function, comprising the following steps: 1) According to the weight percentage, 40-55% silicone rubber raw rubber, 10-20% PUR, 1-5% compatibilizer, and 10-20% reinforcing agent are weighed and heated to 145-155° C., mixed evenly, and cooled to obtain a mixture A; then 8-15% hydrogen-containing silicone oil and 1-5% vulcanizing agent are added to the mixture A and mixed evenly to obtain a PUR-silicone mixture; 2) Filling the PUR-silicone mixture into the mold, molding, forming a base, and providing a receiving cavity in the base; 3) Place the massage electronic components into the accommodating cavity, add PUR-silicone mixture to cover the massage electronic components completely, and then mold to form a massager embryo; 4) The massager embryo with the mold is vulcanized at 135-155° C. for 10-30 min, cooled, and demolded to obtain the massager.

[0007] Through the above process, the shell of the massager is formed in one piece, so that the surface of the massager is smooth and seamless, and the massage electronic components are stably fixed, so that the massager has better structural stability and easy cleaning, thereby improving its practicality.

[0008] Furthermore, because silicone rubber has adsorption properties, it is easy to absorb dust, grease and other impurities during use. Therefore, the PUR-silicone mixture used in this application has the advantages of both silicone and PUR, so that the PUR-silicone shell of the massager has better softness, skin-friendliness and easy cleaning. Therefore, when the massager is in use, it is not easy to be contaminated with dust, grease, etc., and it is easy to clean, and it is not easy to cause water to enter the massage electronic components and be damaged, etc. At the same time, it feels soft and is easy to press the switch of the massager, which improves the convenience of the massager.

[0009] PUR-silicone mixture is a plastic material that is not completely cross-linked. During molding, it is subjected to force to form a base embryo, and the accommodation cavity formed in the base embryo is convenient for accommodating massage electronic components. The wires of the massage electronic components extend outside the base embryo for easy charging. Then, by adding more rubber, the massage electronic components are completely covered. After molding, the massage electronic components are completely coated in the PUR-silicone mixture. After vulcanization molding, the PUR-silicone shell can stably cover the massage electronic components, thereby making the massager have better structural stability, easy cleaning, soft skin-friendly. In the process of use, it is not easy to absorb dust, grease, etc., and it is easy to press.

[0010] In summary, the PUR-silicone mixture obtained by mixing 40-55% silicone rubber raw rubber, 10-20% PUR, 1-5% compatibilizer, 10-20% reinforcing agent, 8-15% hydrogen-containing silicone oil, and 1-5% vulcanizing agent in the present application has excellent softness, easy cleaning, and is easy to shape. Therefore, after molding, a base embryo is formed, and the accommodating cavity of the base embryo is convenient for accommodating massage electronic components. After the massage electronic components and the accommodating cavity are fully covered, the massager embryo is formed by molding, and then after vulcanization treatment, an integrally molded PUR-silicone shell is obtained, and the massage electronic components are stably wrapped in the shell, thereby obtaining a massager with a stable structure, and the outer surface of the PUR-silicone shell is smooth and seamless, so that the massager is easy to clean and has better softness and skin-friendliness.

[0011] Preferably, the silicone rubber raw rubber is methyl vinyl silicone rubber with a vinyl content of 0.11-0.17%.

[0012] The methyl vinyl silicone rubber in the above vinyl content range is blended with PUR, a compatibilizer, a reinforcing agent, a hydrogen-containing silicone oil, and a vulcanizing agent. The resulting PUR-silicone mixture is vulcanized to obtain a PUR-silicone shell with a non-sticky surface, easy cleanability, and soft skin-friendliness, thereby making the massager less likely to be contaminated with dust, grease, etc., and having better softness and skin-friendliness, thereby improving its massage effect and its practicability.

[0013] Preferably, the compatibilizer is an olefin copolymer modified by maleic anhydride.

[0014] The use of maleic anhydride-modified olefin copolymer can improve the compatibility of TPU and silicone rubber, and make the obtained PUR-silicone shell have better performance, so that the massager is soft and skin-friendly, and not easily contaminated by dust, grease, etc.

[0015] Preferably, the reinforcing agent is silicone powder and / or hexagonal boron nitride.

[0016] Silicone powder, hexagonal boron nitride and nano zinc oxide are used as reinforcing agents, which have the functions of filling and reinforcing, are not easy to absorb water and have a low friction coefficient. Therefore, they can synergize with PUR to further improve the performance of the PUR-silicone shell, so that the massager is not easily contaminated by dust, grease, etc. during use, and has better flexibility and skin-friendliness, thereby improving the practicability of the massager.

[0017] Preferably, the PUR is a modified PUR, and the modified PUR is composed of the following raw materials in percentage by weight: 10-20% of bio-based cashew nut shell oil modified polyol Castor oil modified polyol 15-20% Polytrimethylene ether glycol 30-40% Hexamethylene diisocyanate trimer 20-30% Crosslinker 1-2.7% Catalyst 0.1-0.3% The balance is chain extender.

[0018] Bio-based cashew nut shell oil modified polyols and castor oil modified polyols have water resistance, low viscosity, and low moisture sensitivity, and polytrimethylene ether glycol has better softness. When bio-based cashew nut shell oil modified polyols, castor oil modified polyols, and polytrimethylene ether glycol are used as polyols, reacted with hexamethylene diisocyanate trimer, and under the action of crosslinking agents, catalysts, and chain extenders, the obtained modified PUR has better flexibility, water resistance, and easy cleaning. The PUR-silicone shell used for production has a flexible, skin-friendly effect and is easy to clean, so that the massager obtained has skin-friendly fit and is not easily contaminated with dust, grease, etc. when in use, thereby improving its practicality.

[0019] Preferably, the crosslinking agent is composed of trimethylolpropane monopropylene ether and methacryloyloxyethyl maleate in a weight ratio of 1:3.

[0020] Trimethylolpropane monopropylene ether and methacryloyloxyethyl maleate act as crosslinking agents, which can play a synergistic role and interact with the bio-based cashew nut shell oil-modified polyols, castor oil-modified polyols, polytrimethylene ether glycol as polyols, hexamethylene diisocyanate trimer, etc., so that the obtained PUR-silicone shell has a flexible, skin-friendly effect and easy to clean. Therefore, the obtained massager has skin-friendly fit and is not easily contaminated by dust, grease, etc. when in use, thereby improving its practicality.

[0021] Preferably, the chain extender is alkenyl succinic anhydride or propylene glycol.

[0022] Alkenyl succinic anhydride or propylene glycol can act as a chain extender, and combined with bio-based cashew nut shell oil-modified polyols, castor oil-modified polyols, polytrimethylene ether glycol, cross-linking agents, etc., the prepared PUR-silicone shell has better performance, and the obtained massager is soft and skin-friendly during use, and is not easily contaminated by dust, grease, etc., thereby improving its practicality.

[0023] Preferably, the catalyst is dimorpholine diethyl ether.

[0024] Using dimorpholine diethyl ether as a catalyst can better promote the reaction of the raw material system of modified PUR, so that the obtained modified PUR has better flexibility and easy cleaning.

[0025] Preferably, the modified PUR is prepared by the following method: According to the weight percentage, weigh the bio-based cashew nut shell oil modified polyol, castor oil modified polyol, polytrimethylene ether glycol, crosslinking agent, and chain extender, mix them and heat them to 90-100° C., mix them evenly, then heat them to 105-120° C., and vacuum dehydrate them for 1-2 hours; cool them to 70-80° C., add hexamethylene diisocyanate trimer, then heat them to 90-100° C., and react for 2-3 hours; then add a catalyst to react for 20-30 minutes, degas, and obtain modified PUR.

[0026] The preparation method has high production efficiency and simple operation, and the obtained modified PUR is used for the production of PUR-silicone shells, so that the massager produced has better softness and easy cleaning properties, and is not easily contaminated by dust, grease, etc., thereby improving its practicality.

[0027] In a second aspect, the present application provides a massager with a massage function, comprising a PUR-silicone shell and massage electronic components, wherein a receiving cavity for receiving the massage electronic components is arranged inside the PUR-silicone shell, and the massager is manufactured by a method for manufacturing a massager with a massage function.

[0028] In summary, this application has the following beneficial effects: 1. The PUR-silicone mixture obtained by mixing 40-55% silicone rubber raw rubber, 10-20% PUR, 1-5% compatibilizer, 10-20% reinforcing agent, 8-15% hydrogen-containing silicone oil, and 1-5% vulcanizing agent in the present application has good softness, easy cleaning, and is easy to shape. Therefore, after molding, a base embryo is formed, and the accommodating cavity of the base embryo is convenient for accommodating massage electronic components. After the massage electronic components and the accommodating cavity are fully covered, the massager embryo is molded through molding, and then after vulcanization treatment, an integrally molded PUR-silicone shell is obtained, and the massage electronic components are stably wrapped in the shell, thereby obtaining a massager with a stable structure, and the outer surface of the PUR-silicone shell is smooth and seamless, so that the massager is easy to clean and has good softness and skin-friendliness.

[0029] 2. The modified PUR prepared by bio-based cashew nut shell oil-modified polyols, castor oil-modified polyols, polytrimethylene ether di-, hexamethylene diisocyanate trimer, cross-linking agent, catalyst and chain extender in the present application has good flexibility, water resistance and easy cleaning. The PUR-silicone shell used for production is flexible and skin-friendly and not easily contaminated by dust, grease, etc. The resulting massager has the advantages of skin-friendly fit and easy cleaning when in use, thereby improving its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the massager of the present application.

[0031] Figure 2 It is a structural schematic diagram of a partial cross-section of the massager of the present application.

[0032] Figure 3 This is a schematic diagram of the structure of the base film and massage electronic components of the present application in a mold. Explanation of the accompanying reference numerals: 100, PUR-silicone shell; 200, massage electronic components; 300, massager; 400, mold. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-2 The present application is further described in detail with reference to the accompanying drawings and embodiments.

[0034] Introduction of some raw materials: The average molecular weight of methyl vinyl silicone rubber is 100,000-200,000; Maleic anhydride modified olefin copolymer, TAFMER MH5020 from Mitsui Chemicals, Japan, grafting rate 2%; PUR, Henkel TECHNOMELT PUR 4602 Silicone powder, Chengdu Silike Technology Co., Ltd. Silicone powder LYSI-100 The particle size of hexagonal boron nitride is 300-800nm Bio-based cashew nut shell oil modified polyol Guangzhou Haoyi New Materials Technology Co., Ltd., FX-9001LV Castor oil modified polyol Anshan Chuangye Bio-New Material Technology Co., Ltd., CY-420 The average molecular weight of polytrimethylene ether glycol is 2000-3000; Hexamethylene diisocyanate trimer Wanhua HT-100; EVA Korea Lotte Chemical LVS430.

[0035] Preparation example of modified PUR Preparation Example 1 A modified PUR is prepared by the following method: According to the weight percentage, 10% of bio-based cashew nut shell oil modified polyol, 15% of castor oil modified polyol, 40% of polytrimethylene ether glycol, 1% of crosslinking agent, and 3.9% of chain extender were weighed and put into a reactor, heated to 90°C, stirred at a speed of 60r / min for 10min, then heated to 120°C, and vacuum dehydrated for 1h; continued stirring, and cooled to 70°C, added 30% of hexamethylene diisocyanate trimer, and then heated to 100°C and reacted for 2h; then added 0.1% of catalyst and reacted for 30min, stopped stirring, and then vacuum degassed to obtain modified PUR.

[0036] The crosslinking agent is composed of trimethylolpropane monopropylene ether and methacryloyloxyethyl maleate in a weight ratio of 1:1. The chain extender is propylene glycol. The catalyst is dimorpholine diethyl ether.

[0037] Preparation Example 2 A modified PUR is prepared by the following method: According to the weight percentage, 15% of bio-based cashew nut shell oil modified polyol, 17% of castor oil modified polyol, 35% of polytrimethylene ether glycol, 2% of crosslinking agent, and 4.7% of chain extender were weighed and put into a reactor, the temperature was raised to 95°C, and the rotation speed was 60r / min, and the stirring was carried out for 10min, and then the temperature was raised to 110°C, and vacuum dehydration was carried out for 1.5h; stirring was continued, and the temperature was lowered to 75°C, 26% of hexamethylene diisocyanate trimer was added, and the temperature was raised to 98°C, and the reaction was carried out for 2h; then 0.2% of catalyst was added and the reaction was carried out for 25min, stirring was stopped, and vacuum degassing was carried out to obtain modified PUR.

[0038] Preparation Example 3 A modified PUR is prepared by the following method: According to the weight percentage, 20% of bio-based cashew nut shell oil modified polyol, 20% of castor oil modified polyol, 30% of polytrimethylene ether glycol, 2.7% of crosslinking agent, and 6.8% of chain extender were weighed and put into a reactor, the temperature was raised to 100°C, and the speed was 60r / min, and the stirring was carried out for 10min, and then the temperature was raised to 105°C, and vacuum dehydration was carried out for 2h; stirring was continued, and the temperature was lowered to 80°C, 20% of hexamethylene diisocyanate trimer was added, and the temperature was raised to 90°C, and the reaction was carried out for 2h; then 0.3% of catalyst was added to react for 20min, stirring was stopped, and vacuum degassing was carried out to obtain modified PUR.

[0039] Preparation Example 4 The difference between Preparation Example 4 and Preparation Example 2 is that the cross-linking agent is composed of trimethylolpropane monopropylene ether and methacryloyloxyethyl maleate in a weight ratio of 1:2.

[0040] Preparation Example 5 The difference between Preparation Example 5 and Preparation Example 2 is that the cross-linking agent is composed of trimethylolpropane monopropylene ether and methacryloyloxyethyl maleate in a weight ratio of 1:3.

[0041] Preparation Example 6 The difference between Preparation Example 6 and Preparation Example 1 is that the cross-linking agent is trimethylolpropane monopropylene ether.

[0042] Preparation Comparative Example Preparation Comparative Example 1 The difference between Preparation Comparative Example 1 and Preparation Example 1 is that an equal amount of bio-based cashew nut shell liquid modified polyol is replaced by castor oil modified polyol.

[0043] Preparation Comparative Example 2 The difference between Preparation Comparative Example 2 and Preparation Example 1 is that castor oil-modified polyol is replaced by bio-based cashew nut shell oil-modified polyol in equal amounts.

[0044] Preparation Comparative Example 3 The difference between Preparation Comparative Example 3 and Preparation Example 1 is that an equal amount of polytrimethylene ether glycol is replaced by polycarbonate diol.

[0045] Preparation Comparative Example 4 The difference between Preparation Comparative Example 4 and Preparation Example 1 is that the cross-linking agent is replaced by castor oil-modified polyol in equal amount. Example

[0046] Example 1 A massager with massage function, see Figure 1 and Figure 2, including a PUR-silicone shell 100 and a massage electronic component 200 , and a receiving cavity for receiving the massage electronic component 200 is arranged inside the PUR-silicone shell 100 .

[0047] The massager with massage function is prepared by the following method: 1) According to the weight percentage, 46% silicone rubber raw rubber, 20% PUR, 5% compatibilizer, and 20% reinforcing agent were weighed, put into an internal mixer and heated to 145°C, mixed at a speed of 60 r / min for 30 minutes, and cooled to 50°C to obtain a mixture A, and then 8% hydrogen-containing silicone oil and 1% vulcanizing agent were weighed into the mixture A, and mixed at a speed of 60 r / min for 10 minutes, and the mixture was repeatedly mixed to obtain a PUR-silicone mixture; 2) Spray a release agent in the mold cavity, fill the PUR-silicone mixture into the mold to fill 1 / 2 of the mold cavity volume, and then use the middle mold for molding, the molding time is 1s, the molding pressure is 10MPa, so that the PUR-silicone mixture forms a bottom embryo, and the bottom embryo is concavely provided with a receiving cavity; 3) Place the massage electronic components into the accommodating cavity, as shown in the reference Figure 3 , then add PUR-silicone mixture to fill the mold cavity and cover all the massage electronic components, and then use the upper mold for molding, the molding time is 1s, the molding pressure is 10MPa, to form a massager embryo; 4) The massager embryo with the mold is vulcanized at 135° C. for 30 min, cooled to 30° C., and demolded to obtain the massager.

[0048] The silicone rubber raw rubber is methyl vinyl silicone rubber with a vinyl content of 0.11%, the compatibilizer is an olefin copolymer modified by maleic anhydride, and the reinforcing agent is hexagonal boron nitride.

[0049] Example 2 The difference between Example 2 and Example 1 is that the amount of raw materials and process parameters are different. The specific process is as follows: 1) According to the weight percentage, 52% silicone rubber raw rubber, 15% PUR, 3% compatibilizer, and 15% reinforcing agent were weighed, put into an internal mixer and heated to 150°C, mixed at a speed of 60 r / min for 30 minutes, cooled to 50°C to obtain a mixture A, and then 12% hydrogen-containing silicone oil and 3% vulcanizing agent were weighed into the mixture A, mixed at a speed of 60 r / min for 10 minutes, and the mixture was repeatedly mixed to obtain a PUR-silicone mixture; 2) Spray a release agent in the mold cavity, fill the PUR-silicone mixture into the mold to fill 1 / 2 of the mold cavity volume, and then use the middle mold for molding, the molding time is 1s, the molding pressure is 10MPa, so that the PUR-silicone mixture forms a bottom embryo, and the bottom embryo is concavely provided with a receiving cavity; 3) Place the massage electronic components into the accommodating cavity, then add PUR-silicone mixture to fill the mold cavity and cover all the massage electronic components, and then use the upper mold for molding, the molding time is 1s, the molding pressure is 10MPa, to form a massager embryo; 4) Vulcanize the massager embryo with the mold at 145°C for 20min, cool to 30°C, demold, and obtain the massager.

[0050] Example 3 The difference between Example 3 and Example 1 is that the amount of raw materials and process parameters are different. The specific process is as follows: 1) According to the weight percentage, 59% silicone rubber raw rubber, 10% PUR, 1% compatibilizer, and 10% reinforcing agent were weighed, put into an internal mixer and heated to 155° C., mixed for 30 minutes at a speed of 60 r / min, and cooled to 50° C. to obtain a mixture A, and then 15% hydrogenated silicone oil and 5% vulcanizing agent were weighed into the mixture A, and mixed for 10 minutes at a speed of 60 r / min, and the mixture was repeatedly mixed to obtain a PUR-silicone mixture; 2) Spray a release agent in the mold cavity, fill the PUR-silicone mixture into the mold to fill 1 / 2 of the mold cavity volume, and then use the middle mold for molding, the molding time is 1s, the molding pressure is 10MPa, so that the PUR-silicone mixture forms a bottom embryo, and the bottom embryo is concavely provided with a receiving cavity; 3) Place the massage electronic components into the accommodating cavity, then add PUR-silicone mixture to fill the mold cavity and cover all the massage electronic components, and then use the upper mold for molding, the molding time is 1s, the molding pressure is 10MPa, to form a massager embryo; 4) Vulcanize the massager embryo with the mold at 155°C for 10min, cool to 30°C, demold, and obtain the massager.

[0051] Example 4 The difference between Example 4 and Example 2 is that the raw silicone rubber is methyl vinyl silicone rubber with a vinyl content of 0.17%.

[0052] Example 5 The difference between Example 5 and Example 2 is that the reinforcing agent is obtained by mixing silicone powder and hexagonal boron nitride in a weight ratio of 0.2:1.

[0053] Embodiment 6-15 The difference between Example 6-15 and Example 5 is that: PUR is modified PUR, and the source of the modified PUR is shown in Table 1; Table 1 Sources of modified PUR of Examples 6-15 Example Modified PUR Source Example 6 Preparation Example 1 Example 7 Preparation Example 2 Example 8 Preparation Example 3 Example 9 Preparation Example 4 Example 10 Preparation Example 5 Embodiment 11 Preparation Example 6 Example 12 Preparation Comparative Example 1 Example 13 Preparation Comparative Example 2 Embodiment 14 Preparation Comparative Example 3 Embodiment 15 Preparation Comparative Example 4 Comparative Example Comparative Example 1 The difference between Comparative Example 1 and Example 1 is that an equal amount of PUR is replaced by raw silicone rubber.

[0054] Comparative Example 2 The difference between Comparative Example 2 and Example 1 is that PUR is replaced by EVA in equal amounts.

[0055] Performance testing Detection method / test method The PUR-silicone mixture was placed in a mold, and then placed in a flat vulcanizer, vulcanized at 135°C for 30 minutes, cooled to 30°C, and demolded to obtain a variety of test samples, which were then used in the following experiments; The breaking strength and elongation were tested according to the test method ASTM D412. The test sample was 1.5 mm thick and dumbbell-shaped.

[0056] The test was conducted with reference to the national standard GB / T 531.1-2008 and the hardness was tested using a Shore A durometer.

[0057] Easy to clean: 1. The massagers obtained in Examples 1-15 and Comparative Documents 1-2 were stained with 100g of loose powder (composed of 39.9% talcum powder, 50% silicon dioxide, 0.1% glycerol, and 10% zinc oxide by weight, with a specification of 5 microns), and the stained area was 5cm 2 ,like Figure 1 At position A shown, the contact time is 1s and the contact pressure is 1N. After contamination, clean the massager. After the massager is dry, repeat the above operation again. Repeat 20 times and calculate the mass loss of loose powder.

[0058] 2. Grease sweat: weigh 8 g of sodium chloride, 0.1 g of urea, 20 g of triglyceride, 0.01 g of wax, and 5 g of squalene, add them to 1000 g of water, and then add 85% lactic acid to adjust the pH value to 6.2 to obtain grease sweat; The massagers obtained in Examples 1-15 and Comparative Documents 1-2 were immersed in 37°C oily sweat for 5 seconds, taken out, and placed in a 50°C oven for air drying for 10 minutes. After being taken out, they were placed in 37°C oily sweat for 5 seconds, taken out and air dried, and repeated 10 times. Then, the entire massager was wiped with filter paper to observe whether stains were generated on the surface of the filter paper. If there were stains, it was counted as 10 times. If there were no stains, the above method was repeated 10 times. If there were stains, it was counted as 20 times. If there were no stains, it was counted as more than 20 times.

[0059] The above experimental data are shown in Table 2. Table 2 Experimental data of Examples 1-15 and Comparative Examples 1-2 Combining Example 1 and Comparative Examples 1-2 and Table 2, it can be seen that the breaking strength, elongation, and number of stains of Comparative Examples 1-2 are lower than those of Example 1, while the mass loss is greater than that of Example 1, indicating that the PUR-silicone shell prepared by the present application has better softness, skin-friendliness, and easy cleaning, and thus the massager is not easily contaminated by dust, grease, etc.

[0060] Combining Example 5 and Example 6 and Table 2, it can be seen that the breaking strength, elongation, and number of stains of Example 5 are lower than those of Example 6, while the mass loss is greater than that of Example 6, indicating that the modified PUR prepared by the present application interacts with the silicone rubber raw rubber, so that the PUR-silicone shell has better softness, skin-friendliness, and easy cleaning, and thus the massager is not easily contaminated by dust, grease, etc.

[0061] Combining Example 6 and Examples 12-15 and Table 2, it can be seen that the breaking strength, elongation, and number of stains of Examples 12-15 are lower than those of Example 6, while the mass loss is greater than that of Example 6, indicating that the modified PUR prepared by bio-based cashew nut shell oil-modified polyols, castor oil-modified polyols, polytrimethylene ether di-, hexamethylene diisocyanate trimer, cross-linking agent, catalyst and chain extender in the present application has better flexibility, water resistance and easy cleaning, and the PUR-silicone shell used for production has a flexible and skin-friendly effect and is not easily contaminated with dust, grease, etc., so that the obtained massager has the advantages of skin-friendly fit and easy cleaning when in use, thereby improving its practicality.

[0062] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A method for preparing a massager with a massage function, characterized in that: The following steps are involved: According to weight percentage, 40-55% silicone rubber raw rubber, 10-20% PUR, 1-5% compatibilizer, and 10-20% reinforcing agent are weighed and heated to 145-155°C, mixed evenly, and cooled to obtain a mixture A; then 8-15% hydrogen-containing silicone oil and 1-5% vulcanizing agent are added to the mixture A and mixed evenly to obtain a PUR-silicone mixture; Fill the PUR-silicone mixture into the mold, and mold it to form a base, and make the base concave with a receiving cavity; Put the massage electronic components into the accommodating cavity, add PUR-silicone mixture to cover the massage electronic components completely, and then mold to form a massager embryo; The massager embryo with the mold is vulcanized at 135-155° C. for 10-30 minutes, cooled, and demolded to obtain the massager.

2. The method for preparing a massager with massage function according to claim 1, characterized in that: The silicone rubber raw rubber is methyl vinyl silicone rubber with a vinyl content of 0.11-0.17%.

3. The method for preparing a massager with massage function according to claim 1, characterized in that: The compatibilizer is an olefin copolymer modified by maleic anhydride.

4. The method for preparing a massager with massage function according to claim 1, characterized in that: The reinforcing agent is silicone powder and / or hexagonal boron nitride.

5. The method for preparing a massager with massage function according to claim 1, characterized in that: The PUR is a modified PUR, and the modified PUR is composed of the following raw materials in percentage by weight: Bio-based cashew nut shell liquid modified polyol 10-20% Castor oil modified polyol 15-20% Polytrimethylene ether glycol 30-40% Hexamethylene diisocyanate trimer 20-30% Crosslinking agent 1-2.7% Catalyst 0.1-0.3% The balance is chain extender.

6. The method for preparing a massager with massage function according to claim 5, characterized in that: The crosslinking agent is composed of trimethylolpropane monopropylene ether and methacryloyloxyethyl maleate in a weight ratio of 1:

3.

7. The method for preparing a massager with massage function according to claim 6, characterized in that: The chain extender is alkenyl succinic anhydride or propylene glycol.

8. The method for preparing a massager with massage function according to claim 5, characterized in that: The catalyst is dimorpholine diethyl ether.

9. A method for preparing a massager with massage function according to claims 5-9, characterized in that: The modified PUR is prepared by the following method: According to the weight percentage, weigh the bio-based cashew nut shell oil modified polyol, castor oil modified polyol, polytrimethylene ether glycol, crosslinking agent, and chain extender, mix them and heat them to 90-100° C., mix them evenly, then heat them to 105-120° C., and vacuum dehydrate them for 1-2 hours; cool them to 70-80° C., add hexamethylene diisocyanate trimer, then heat them to 90-100° C., and react for 2-3 hours; then add a catalyst to react for 20-30 minutes, degas, and obtain modified PUR.

10. A massager with massage function, comprising a housing and massage electronic components, wherein a housing cavity for accommodating the massage electronic components is provided inside the housing, characterized in that: The massager with massage function is prepared by the preparation method of claim 1.

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