High-strength glue preparation system and method

Abstract

The invention relates to the field of glue preparation, in particular to a high-strength glue preparation system and method.The high-strength glue preparation method comprises the following steps that S1, water and polyvinyl alcohol are added into a mixing device, raw materials are made to flow back and forth to be fully stirred and mixed till the polyvinyl alcohol is completely dissolved, and a mixed solution A is obtained; s2, under the stirring condition, adding part of the emulsifier into the mixed solution A, then slowly adding vinyl acetate and an initiator, and continuously stirring to obtain a mixed solution B; s3, after the mixed solution B is cooled, adding sodium bicarbonate, dibutyl phthalate, diethylene glycol dibenzoate, octanol and isopropanol under a stirring condition, and uniformly mixing to obtain a mixed solution C; and S4, adding the residual emulsifier, allyl methacrylate, glycol dimethacrylate and toluene diisocynate into the mixed solution C, uniformly stirring and mixing, preserving heat at 45 DEG C, and cooling to room temperature to obtain the high-strength glue. The mixing device is used for enabling raw materials to flow back and forth to be fully stirred and mixed.

Description

Technical Field

[0001] This invention relates to the field of adhesive preparation, and in particular to a system and method for preparing high-strength adhesive. Background Technology

[0002] Adhesive is an intermediate that connects two materials. It is mostly available in water-based forms and belongs to the fine chemical category. There are many types, primarily classified by their adhesive properties, physical form, curing method, and the materials being bonded. During adhesive preparation, the raw materials need to be thoroughly mixed to ensure quality. However, most existing mixing systems cannot achieve this thorough mixing, thus affecting adhesive quality. Summary of the Invention

[0003] The purpose of this invention is to provide a high-strength adhesive preparation system and method, which uses a mixing device to make the raw materials flow back and forth to achieve thorough mixing.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A method for preparing a high-strength adhesive, characterized by comprising the following steps:

[0006] S1. Add water and polyvinyl alcohol to the mixing device and make the raw materials flow back and forth to mix them thoroughly until the polyvinyl alcohol is completely dissolved to obtain mixture A.

[0007] S2. Under stirring conditions, add a portion of the emulsifier to mixture A, then slowly add vinyl acetate and initiator, and continue stirring to obtain mixture B;

[0008] S3. After the mixture B has cooled, add sodium bicarbonate, dibutyl phthalate, diethylene glycol dibenzoate, octanol, and isopropanol under stirring, and mix well to obtain mixture C.

[0009] S4. Add the remaining emulsifier, allyl methacrylate, ethylene glycol dimethacrylate and toluene diisocyanate to mixture C, stir and mix evenly, keep at 45°C and then cool to room temperature to obtain high-strength adhesive.

[0010] Preferably, in step S1, while stirring and mixing, the mixture is heated to 90°C and kept at that temperature for 1 hour.

[0011] Preferably, in step S1, after the polyvinyl alcohol is completely dissolved, the pH is adjusted to 8-9.

[0012] Preferably, in step S2, after vinyl acetate and the initiator have been completely added, the temperature is maintained at 90°C for 0.5-1 hour.

[0013] Preferably, in step S3, the temperature is cooled to 50-55°C.

[0014] Preferably, in step S4, the temperature is maintained at 50-55°C during mixing and stirring.

[0015] Preferably, in step S4, the temperature is maintained for 0.1-0.3 hours.

[0016] Preferably, the emulsifier is sodium dodecylbenzenesulfonate or sodium oleate.

[0017] Preferably, the initiator is potassium persulfate or ammonium persulfate.

[0018] A high-strength adhesive preparation system includes a mixing device in step S1. The mixing device includes a central box and two symmetrically connected containers on both sides of the central box, an outer ring fixed on the two containers, the outer ring being coaxially arranged with the central box, and an opening provided on the outer ring, the opening communicating with one of the containers. Two stirring shafts I rotate laterally on the two containers, and multiple stirring plates I are fixed on each of the two stirring shafts I. Attached Figure Description

[0019] Figure 1 This is a schematic flowchart of Example 1 of the high-strength adhesive preparation method;

[0020] Figure 2 This is a flowchart illustrating Example 2 of the high-strength adhesive preparation method;

[0021] Figure 3 and Figure 4 This is a schematic diagram of the mixing device;

[0022] Figure 5 This is a structural diagram of the outrigger frame;

[0023] Figure 6 This is a structural diagram of the container;

[0024] Figure 7 yes Figure 6 A schematic diagram of the cross-sectional structure;

[0025] Figure 8 This is a schematic diagram of the arc baffle.

[0026] Figure 9 This is a schematic diagram of the structure of stirring shaft II;

[0027] Figure 10 This is a schematic diagram of the structure of stirring shaft I.

[0028] In the picture:

[0029] Outrigger bracket 101; Side seat 102; Fixing ring 103;

[0030] Outer ring 201; container 202; center box 203; opening 204; central shaft 205; worm gear 206;

[0031] Arc baffle 301; drive shaft 302; double-acting worm shaft 303;

[0032] Stirring shaft II 401; stirring plate II 402; stirring shaft I 403; stirring plate I 404; transmission ring 405. Detailed Implementation

[0033] like Figure 1-10 Example 1 of the high-strength adhesive preparation method is shown below:

[0034] A method for preparing a high-strength adhesive, characterized by comprising the following steps:

[0035] S1. Add water and polyvinyl alcohol to the mixing device and make the raw materials flow back and forth to mix them thoroughly until the polyvinyl alcohol is completely dissolved to obtain mixture A.

[0036] S2. Under stirring conditions, add a portion of the emulsifier to mixture A, then slowly add vinyl acetate and initiator, and continue stirring to obtain mixture B;

[0037] S3. After the mixture B has cooled, add sodium bicarbonate, dibutyl phthalate, diethylene glycol dibenzoate, octanol, and isopropanol under stirring, and mix well to obtain mixture C.

[0038] S4. Add the remaining emulsifier, allyl methacrylate, ethylene glycol dimethacrylate and toluene diisocyanate to mixture C, stir and mix evenly, keep at 45°C and then cool to room temperature to obtain high-strength adhesive.

[0039] In step S1, while stirring and mixing, the mixture is heated to 90°C and kept at that temperature for 1 hour.

[0040] In step S1, after the polyvinyl alcohol is completely dissolved, the pH is adjusted to 8-9.

[0041] In step S2, after vinyl acetate and the initiator have been completely added, the temperature is maintained at 90°C for 0.5 hours.

[0042] In step S3, the temperature is cooled to 50°C.

[0043] In step S4, the temperature is maintained at 50°C during mixing and stirring.

[0044] In step S4, the temperature is maintained for 0.3 hours.

[0045] The emulsifier is sodium dodecylbenzenesulfonate or sodium oleate.

[0046] The initiator is potassium persulfate or ammonium persulfate.

[0047] like Figure 1-10 Example 2 of the high-strength adhesive preparation method is shown below:

[0048] A method for preparing a high-strength adhesive, characterized by comprising the following steps:

[0049] S1. Add water and polyvinyl alcohol to the mixing device and make the raw materials flow back and forth to mix them thoroughly until the polyvinyl alcohol is completely dissolved to obtain mixture A.

[0050] S2. Under stirring conditions, add a portion of the emulsifier to mixture A, then slowly add vinyl acetate and initiator, and continue stirring to obtain mixture B;

[0051] S3. After the mixture B has cooled, add sodium bicarbonate, dibutyl phthalate, diethylene glycol dibenzoate, octanol, and isopropanol under stirring, and mix well to obtain mixture C.

[0052] S4. Add the remaining emulsifier, allyl methacrylate, ethylene glycol dimethacrylate and toluene diisocyanate to mixture C, stir and mix evenly, keep at 45°C and then cool to room temperature to obtain high-strength adhesive.

[0053] In step S1, while stirring and mixing, the mixture is heated to 90°C and kept at that temperature for 1 hour.

[0054] In step S1, after the polyvinyl alcohol is completely dissolved, the pH is adjusted to 8-9.

[0055] In step S2, after vinyl acetate and initiator are completely added, maintain the temperature at 90°C for 1 hour.

[0056] In step S3, the temperature is cooled to 55°C.

[0057] In step S4, the temperature is maintained at 55°C during mixing and stirring.

[0058] In step S4, the temperature is maintained for 0.1 hours.

[0059] The emulsifier is sodium dodecylbenzenesulfonate or sodium oleate.

[0060] The initiator is potassium persulfate or ammonium persulfate.

[0061] like Figure 1-10 As shown:

[0062] A high-strength adhesive preparation system includes a mixing device in step S1. The mixing device includes a central box 203 and two symmetrically connected containers 202 on both sides of the central box 203, and an outer ring 201 fixed on the two containers 202. The outer ring 201 is coaxially arranged with the central box 203, and an opening 204 is provided on the outer ring 201. The opening 204 communicates with one of the containers 202. There are two stirring shafts I 403 that rotate laterally on the two containers 202, and multiple stirring plates I 404 are fixed on each of the two stirring shafts I 403.

[0063] The central box 203 is connected to the two holding boxes 202 to form a mixing space, and the space of the holding box 202 is larger than the space of the central box 203, thus forming a symmetrical mixing cavity that is large at both ends and small in the middle.

[0064] When in use, the raw material is added into the container 202 located above through the opening 204. The raw material will automatically slide down into another container 202 under its own gravity. At the same time, the two stirring shafts I 403 are driven to rotate, which will drive multiple stirring plates I 404 to rotate in the two containers 202, thus stirring the raw material.

[0065] like Figure 1-10 As shown:

[0066] The preparation system also includes a support frame 101, a side seat 102, a central shaft 205, a fixing ring 103, and a transmission ring 405. There are two support frames 101 arranged side by side, and two side seats 102 are fixed between the two support frames 101. The two ends of the central box 203 are fixed with central shafts 205. The two central shafts 205 are coaxial with the central box 203. The two central shafts 205 rotate on the two support frames 101 respectively. A fixing ring 103 is fixed on one of the support frames 101. The transmission ring 405 rotates on the fixing ring 103 and is connected to the two stirring shafts 1403.

[0067] Two support legs 101 and two side seats 102 form a support frame, which supports the entire mixing chamber through two central shafts 205. A first motor installed on one of the support legs 101 drives the transmission ring 405 to rotate on the fixed ring 103, which in turn drives the two stirring shafts I 403 to rotate. The two stirring shafts I 403 simultaneously drive multiple stirring plates I 404 to rotate in the two containers 202, thus stirring the raw materials.

[0068] like Figure 1-10 As shown:

[0069] The preparation system also includes a worm gear 206, an arc baffle 301, a drive shaft 302, and a bidirectional worm shaft 303. The two arc baffles 301 are symmetrically arranged and are respectively limited to rotate on the two side seats 102. The two arc baffles 301 slide against the outer ring 201. The two drive shafts 302 rotate between the two support legs 101 and are respectively engaged with the two arc baffles 301 for transmission. The bidirectional worm shaft 303 rotates on one of the support legs 101 and is engaged with the two drive shafts 302 for transmission. The worm gear 206 rotates on one of the support legs 101 and is engaged with the central shaft 205 on that side for transmission.

[0070] By rotating the bidirectional worm shaft 303, the bidirectional worm shaft 303 simultaneously meshes with and drives the two transmission shafts 302 to rotate symmetrically, thereby driving the two arc baffles 301 to rotate synchronously on the outer ring 201, so that the lower ends of the two arc baffles 301 are joined together. At this time, the second motor installed on the support frame 101 drives the worm 206, which meshes with the transmission center shaft 205 to drive the mixing space to rotate, thereby causing the two containers 202 to rotate around the center shaft 205. When the container 202 with the opening 204 rotates to the bottom, the two arc baffles 301 block the opening 204, ensuring that the material does not flow out. Thus, through the rotation of the mixing chamber, the material flows back and forth from one container 202 to the other container 202, improving the mixing efficiency.

[0071] Moreover, when the mixing chamber rotates, the opening 204 will pass through the break at the upper end between the two arc baffles 301 with each rotation. At this time, the opening 204 is exposed, and materials can continue to be added into the mixing chamber, thus forming a slow addition of materials.

[0072] After the glue is obtained after mixing, the two-way worm shaft (303) is rotated to make the two-way worm shaft (303) mesh with the two transmission shafts (302) and rotate symmetrically, so that the upper ends of the two arc baffles (301) are joined together. At this time, the lower ends of the two arc baffles (301) are opened. When the opening (204) on the mixing chamber is rotated to the bottom, the glue can be discharged.

[0073] Meanwhile, heating devices are installed on the two arc baffles 301 to heat and keep the material in the mixing chamber warm.

[0074] like Figure 1-10 As shown:

[0075] The preparation system also includes a stirring shaft II 401 and stirring plates II 402. The stirring shaft II 401 rotates through two central shafts 205, and multiple stirring plates II 402 are fixed on the stirring shaft II 401.

[0076] A third motor mounted on one of the support legs 101 drives the stirring shaft II 401, which in turn drives multiple stirring plates II 402 to rotate within the central box 203. This stirs the material within the central box 203. As the mixing chamber rotates, the material flows from one container 202 to another, passing through the central box 203 repeatedly. This results in better stirring of the material by the stirring plates II 402, further improving the stirring efficiency and effect.

Claims

1. A method for preparing a high-strength adhesive, characterized in that: Includes the following steps: S1. Add water and polyvinyl alcohol to the mixing device and make the raw materials flow back and forth to mix them thoroughly until the polyvinyl alcohol is completely dissolved to obtain mixture A. S2. Under stirring conditions, add a portion of the emulsifier to mixture A, then slowly add vinyl acetate and initiator, and continue stirring to obtain mixture B; S3. After the mixture B has cooled, add sodium bicarbonate, dibutyl phthalate, diethylene glycol dibenzoate, octanol, and isopropanol under stirring, and mix well to obtain mixture C. S4. Add the remaining emulsifier, allyl methacrylate, ethylene glycol dimethacrylate and toluene diisocyanate to mixture C, stir and mix evenly, keep at 45°C and then cool to room temperature to obtain high-strength adhesive.

2. The method for preparing a high-strength adhesive according to claim 1, characterized in that: In step S1, while stirring and mixing, the mixture is heated to 90°C and kept at that temperature for 1 hour.

3. The method for preparing a high-strength adhesive according to claim 1, characterized in that: In step S1, after the polyvinyl alcohol is completely dissolved, the pH is adjusted to 8-9.

4. The method for preparing a high-strength adhesive according to claim 2, characterized in that: In step S2, after vinyl acetate and the initiator have been completely added, maintain the temperature at 90°C for 0.5-1 hour.

5. The method for preparing a high-strength adhesive according to claim 1, characterized in that: In step S3, the temperature is cooled to 50-55°C.

6. The method for preparing a high-strength adhesive according to claim 1, characterized in that: In step S4, the temperature is maintained at 50-55℃ during mixing and stirring.

7. The method for preparing a high-strength adhesive according to claim 1, characterized in that: In step S4, the temperature is maintained for 0.1-0.3 hours.

8. The method for preparing a high-strength adhesive according to claim 1, characterized in that: The emulsifier is sodium dodecylbenzenesulfonate or sodium oleate.

9. The method for preparing a high-strength adhesive according to claim 1, characterized in that: The initiator is potassium persulfate or ammonium persulfate.

10. A high-strength adhesive preparation system, characterized in that: The mixing device includes a central box (203) and two symmetrically connected containers (202) on both sides of the central box (203), and an outer ring (201) fixed on the two containers (202). The outer ring (201) is coaxially arranged with the central box (203), and an opening (204) is provided on the outer ring (201). The opening (204) communicates with one of the containers (202). There are two stirring shafts I (403) that rotate laterally on the two containers (202), and multiple stirring plates I (404) are fixed on each of the two stirring shafts I (403).

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