CN117551403A - High-adhesive-strength reinforcing adhesive for molded shoes and preparation method thereof - Google Patents
High-adhesive-strength reinforcing adhesive for molded shoes and preparation method thereof Download PDFInfo
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- CN117551403A CN117551403A CN202311494437.0A CN202311494437A CN117551403A CN 117551403 A CN117551403 A CN 117551403A CN 202311494437 A CN202311494437 A CN 202311494437A CN 117551403 A CN117551403 A CN 117551403A
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- 230000001070 adhesive effect Effects 0.000 title claims abstract description 63
- 239000000853 adhesive Substances 0.000 title claims abstract description 61
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title description 13
- 229920001971 elastomer Polymers 0.000 claims abstract description 85
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 32
- 239000011593 sulfur Substances 0.000 claims abstract description 32
- 238000004073 vulcanization Methods 0.000 claims abstract description 31
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 19
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 15
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 15
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 15
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000008117 stearic acid Substances 0.000 claims abstract description 15
- 239000011787 zinc oxide Substances 0.000 claims abstract description 15
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 14
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 14
- 229920001194 natural rubber Polymers 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 20
- 238000010074 rubber mixing Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 11
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 9
- 238000010408 sweeping Methods 0.000 claims description 9
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims description 6
- 206010054949 Metaplasia Diseases 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 230000015689 metaplastic ossification Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 6
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 4
- 229920001030 Polyethylene Glycol 4000 Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 239000000227 bioadhesive Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002390 adhesive tape Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000000748 compression moulding Methods 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010077 mastication Methods 0.000 description 1
- 230000018984 mastication Effects 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J107/00—Adhesives based on natural rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a high-adhesive-strength reinforcing adhesive for mould pressing shoes, which comprises, by weight, 100 parts of natural adhesive, 2.0-2.4 parts of sulfur, 2.5-3.5 parts of vulcanization accelerator, 0.8-1.2 parts of stearic acid, 7.5-8.5 parts of nano zinc oxide, 0.3-0.7 part of peptizer, 1.5-2.5 parts of anti-aging agent, 1-1.4 parts of polyethylene glycol, 8-9 parts of tackifier A and 3-3.5 parts of meta-alpha-white system. The invention adopts natural rubber to plasticate to 0.78-0.82, adjusts a vulcanization accelerator system and the like, adopts a meta-alpha white system, adds tackifier A to improve the bridging capability of the rubber, adds polyethylene glycol to improve the vulcanization starting kinetic energy of the rubber, optimizes the manufacturing process route of the rubber, and obtains the high-adhesive-strength reinforcing rubber. The invention is simple and easy to operate, low in cost and good in use effect.
Description
Technical Field
The invention relates to the field of rubber material preparation, in particular to high-adhesive-strength reinforcing rubber for molded shoes and a preparation method thereof.
Background
Different shoes have different adhesive property requirements, and the adhesive property requirements on each part are different, so that the adhesive scheme of the rubber for the laminated hot vulcanization shoes cannot be commonly used in the production process of rubber shoes of other processes. The mould pressing shoes are shoe type with beautiful curves and have the characteristic of simulating the appearance of the injection moulding shoe parts, and the rubber shoes manufactured by the mould pressing technology are popular among consumers because of novel style. However, when the air-textured yarn is used to make the molded shoe in order to achieve the comfort of ventilation and no foot-tightness during wearing, the bonding strength between the welt and the upper of the shoe is often designed to be more than 5.0N/mm in order to match the aesthetic needs of the shoe and save the cost. When the rubber cement is adhered by the conventional shoe welt rubber in the manufacturing process of the high-adhesive-strength molded shoe, the adhesive strength between the welt rubber and the upper often cannot meet the design requirement due to the lack of bridging effect between the rubber cement and the welt rubber and the upper, so that the service life of the shoe is reduced, and the shoe welt rubber is a great obstacle for ensuring the quality of products in the production process of the molded shoe.
In the prior art, due to the existence of the problems, the operation quality of staff is affected, and the requirement of consumers on the wearing life of products cannot be met.
Disclosure of Invention
The invention aims to provide high-adhesive-strength reinforcing adhesive for molded shoes and a preparation method thereof, which can effectively solve the quality problem of low adhesive strength of upper cloth of a welt adhesive material through self high bridging capability so as to overcome the defects in the prior art.
The technical scheme of the invention is as follows: the reinforcing adhesive with high adhesive strength for mold pressing shoes consists of natural adhesive 100 weight portions, sulfur 2.0-2.4 weight portions, vulcanization accelerator 2.5-3.5 weight portions, stearic acid 0.8-1.2 weight portions, nanometer zinc oxide 7.5-8.5 weight portions, peptizer 0.3-0.7 weight portion, antioxidant 1.5-2.5 weight portions, polyglycol 1-1.4 weight portions, tackifier A8-9 weight portions and meta-alpha-white system 3-3.5 weight portions.
The high-adhesive-strength reinforcing adhesive for the molded shoes comprises, by weight, 100 parts of natural adhesive, 2.2 parts of sulfur, 3.0 parts of vulcanization accelerator, 1.0 part of stearic acid, 8.0 parts of nano zinc oxide, 0.5 part of peptizer, 2.0 parts of anti-aging agent, 1.2 parts of polyethylene glycol, 8.5 parts of tackifier A and 3.3 parts of meta-alpha-white system.
In the high-adhesive-strength reinforcing adhesive for the mould pressing shoes, the natural adhesive is 2# standard adhesive, and the vulcanization accelerator is prepared according to the following proportion: each 3.0 parts of vulcanization accelerator consists of 1.5 parts of accelerator DM, 0.5 part of accelerator CZ and 1.0 part of accelerator M; the model of the peptizer is DS-T-1; the metaformaldehyde white system is prepared according to the following proportion: each 3.3 parts of meta-alpha white system consists of 1.2 parts of white carbon black, 0.9 part of accelerator H and 1.2 parts of resorcinol; the specification and model of the anti-aging agent are 4010NA; the polyethylene glycol model was PEG4000.
The preparation method of the high-adhesive-strength reinforcing adhesive for the mould pressing shoes comprises the following steps of taking all the components in parts by weight; the method comprises the following steps:
1) Preparing a meta-alpha white system masterbatch: taking 10% of natural rubber and all the metaplasia white system by weight, and uniformly mixing at normal temperature on an open rubber mixing mill to obtain metaplasia white system master batch;
2) Preparing a plasticated rubber: adding the rest natural rubber, all peptizers and the meta-alpha white system masterbatch prepared in the step 1) into an internal mixer at 85-100 ℃ for refining and pressing for 10-12 minutes, and then pulling through 10-12 pieces on an open mill with a roll spacing of 0.5-1.0mm to obtain plasticated rubber with a Wilson plasticity of 0.78-0.82;
3) Preparing sulfur-free rubber compound: putting the plasticated rubber, the intermediate material and the tackifier A prepared in the step 2) into an internal mixer, wherein the intermediate material is a mixture of a vulcanization accelerator, stearic acid, nano zinc oxide, an anti-aging agent and polyethylene glycol, performing internal mixing in the internal mixer for 2 minutes 10 seconds to 2 parts 50 seconds, performing powder sweeping and turning for 15 seconds, performing powder sweeping and turning for 3 minutes 40 seconds to 4 minutes 20 seconds, performing powder sweeping and turning for 4 minutes 40 seconds to 5 minutes 20 seconds, spreading and cooling the discharged rubber compound on the ground, performing open rolling for 5 to 6 times in an open mill at a roll spacing of 3 mm to 4mm, and performing roll wrapping and sheet discharging to obtain a primary rubber compound of the high adhesive strength reinforcing rubber for the molded shoes;
4) Adding sulfur into the sizing material: the primary rubber compound of the high-adhesive-strength reinforcing rubber for the molded shoes, which is obtained in the step 3), is put on an XK-250 open rubber mixing machine with a roller spacing of 3-4mm, sulfur is added into a wrapping roller, the sulfur is uniformly turned over, and the high-adhesive-strength reinforcing rubber for the molded shoes is obtained after the rubber is put on a piece;
5) And (3) carrying out sheet formation of sulfur-containing high-adhesive-strength reinforcing adhesive: and (3) taking 500 g of sulfur-containing high-adhesion reinforcing rubber each time on an XK-250 open rubber mixing machine with a roll gap of 0.5-1.0mm, adding the rubber mixing machine, passing the rubber mixing machine under the roll gap of the rubber mixing machine, fully pulling out the rubber passing machine, putting the rubber passing machine into a clean cloth plate layer, cooling, and finishing to obtain the high-adhesion strength reinforcing rubber for bonding in the molding shoe molding process.
In the preparation method of the high-adhesive-strength reinforcing adhesive for the molded shoes, the control range of the quick detection index of the adhesive after sulfur is added in the step 4) is as follows: the Wipe plasticity of the rubber compound is 0.65-0.70; the starting point of vulcanization of the mix at 143℃X20MPa is 1 '50' -2 '10'.
To further verify the effect of the present invention, the following experiments were performed:
1. influence of vulcanization starting point of high-adhesion reinforcing adhesive on adhesive strength
TABLE 1
| Sequence number | Vulcanization starting point | Adhesive strength |
| 1 | 2 '20', or more | 4.8 |
| 2 | 1’50”-2’10” | 6.8 |
| 3 | 1’00”-1’40” | 6.5 |
| 4 | <50” | 4.9 |
Table 1 shows that the starting point of the cure of the compounds is preferably from 1 minute 50 seconds to 2 minutes 10 seconds.
2. Influence of the Weishi plasticity of the high-adhesion reinforcing rubber and the rubber compound on the adhesive strength of the rubber compound
TABLE 2
| Sequence number | Wipe plasticity of plasticated rubber | Wipe plasticity of the rubber compound | Adhesive strength | State of the art |
| 1 | <0.75 | 0.65-0.70 | 5.0 | Normal state |
| 2 | 0.78-0.82 | 0.65-0.70 | 6.8 | Normal state |
| 3 | 0.82 or more | 0.65-0.70 | 6.5 | Normal state |
| 4 | 0.78-0.82 | 0.55-0.59 | 5.6 | Shrinkage of |
| 5 | 0.78-0.82 | 0.60-0.64 | 6.2 | Normal state |
| 6 | 0.78-0.82 | 0.71-0.75 | 6.3 | Normal state |
| 7 | 0.78-0.82 | 0.76-0.80 | 6.6 | Soft and high-energy consumption |
| 8 | 0.78-0.82 | 0.81 or more | 6.6 | Soft and high-energy consumption |
Table 2 shows that the rubber mastication has the Wipe plasticity of 0.78-0.82 and the rubber compound has the Wipe plasticity of 0.65-0.70, which can ensure that the rubber compound process is normal and the bonding meets the requirements.
3. Effect of complexing agent dosage on adhesive Strength
1. Effect of the proportion of the accelerator on the adhesive strength
TABLE 3 Table 3
| Sequence number | Accelerator M/phr | Accelerator CZ/phr | Accelerator DM/phr | Adhesive strength (N/mm) |
| 1 | 1 | 0.3 | 1.5 | 6.3 |
| 2 | 1 | 0.5 | 1.5 | 6.8 |
| 3 | 1 | 0.7 | 1.5 | 6.7 |
| 4 | 1 | 0.5 | 1.2 | 6.2 |
| 5 | 1 | 0.5 | 1.8 | 6.7 |
| 6 | 0.6 | 0.5 | 1.5 | 6.3 |
| 7 | 0.8 | 0.5 | 1.5 | 6.2 |
| 8 | 1.2 | 0.5 | 1.5 | 6.6 |
| 9 | 1.4 | 0.5 | 1.5 | 6.4 |
As shown in Table 3, the optimum amounts of the vulcanization accelerators were 1.5 parts of accelerator DM, 0.5 part of accelerator CZ and 1.0 part of accelerator M.
2. The meta-alpha white system ratio was used as a test for the function of the highly reinforced adhesive
TABLE 4 Table 4
As shown in Table 4, the optimum amounts of metawhite carbon black, 0.9 part of accelerator H and 1.2 parts of resorcinol were 1.2 parts.
3. Test of the influence of other compounding agents on the function of reinforcing rubber
TABLE 5
As shown in Table 5, the optimum amounts of the compounding agent, reinforcing agent and other materials were 2.2 parts of sulfur, 1.0 part of stearic acid, 8.0 parts of nano zinc oxide, 0.5 part of peptizer, 2.0 parts of antioxidant, 1.2 parts of polyethylene glycol and 8.5 parts of tackifier A.
4. Test of the effect of peptizer on the function of reinforcing rubber
TABLE 6
Table 6 shows that 100 parts of natural rubber are optimally compounded with 0.5 part of peptizer DS-T-1.
4. Research on sizing material preparation and heat-refining application
1. Study of Property of preparation of plasticated rubber
TABLE 7
The test in Table 7 shows that the preferred preparation of the masterbatches by the metaformaldehyde white system is the optimal preparation process condition.
2. Study of Process Performance in preparation of plasticated rubber
TABLE 8
The test in Table 8 shows that the optimal conditions for the plasticated adhesive manufacturing process are as follows: and (3) refining and pressing for 10-12 minutes in an internal mixer, and pulling through 10-12 channels on an open mill with a roll gap of 0.5-1.0mm to discharge sheets.
3. Research on process for preparing sulfur-free high-adhesion reinforced rubber compound
TABLE 9
Table 9 shows that the optimal technological conditions for mixing and manufacturing are that the first pressing time is optimal for 2 minutes, 10 seconds and 2 parts and 50 seconds after the materials are put into an internal mixer, and the powder is swept once every 1 minute and the powder is optimal for 2 times. The mixing effect of 5-6 times of mixing is best when the materials are discharged to the mixing condition of the open mill and the mixing condition is pulled down and mixed with the roll spacing of 3-4 mm.
4. Study on thickness and process of reinforced rubber sheet containing sulfur
Table 10
Table 10 shows that the thickness and the process requirements of the sulfur-containing high-adhesion reinforcing adhesive film are as follows: on an XK-250 open rubber mixing machine with a roll gap of 0.5-1.0mm, the thickness of a discharged sheet is 0.5-1.0mm, the length of adhesive is 70-80mm, and the width of the adhesive is 12-15mm, so that the normal operation of a bonding process can be ensured, and the adhesive strength is ensured.
The related experiments prove that the optimal formula dosage of the high-adhesive-strength reinforcing adhesive for the molded shoes is as follows: 100 parts of natural rubber, 2.2 parts of sulfur, 3.0 parts of vulcanization accelerator (1.5 parts of accelerator DM, 0.5 part of accelerator CZ and 1.0 part of accelerator M), 1.0 part of stearic acid, 8.0 parts of nano zinc oxide, 0.5 part of peptizer, 2.0 parts of antioxidant, 1.2 parts of polyethylene glycol, 8.5 parts of tackifier A and 3.3 parts of metaformaldehyde white system.
Due to the adoption of the technical scheme, compared with the prior art, the invention adopts the natural rubber to plasticate to 0.78-0.82, adjusts a vulcanization accelerator system and the like, adopts a meta-alpha white system, adds tackifier A to improve the bridging capacity of the rubber material, adds polyethylene glycol to improve the vulcanization starting kinetic energy of the rubber material, optimizes the manufacturing process route of the rubber material, and obtains the high-adhesive-strength reinforcing rubber. The invention is simple and easy to operate, low in cost and good in use effect.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to be limiting.
Example 1 of the present invention: the high-adhesive-strength reinforcing adhesive for shoe pressing comprises, by weight, 100 parts of natural adhesive, 2.2 parts of sulfur, 3.0 parts of a vulcanization accelerator, 1.0 part of stearic acid, 8.0 parts of nano zinc oxide, 0.5 part of a peptizer, 2.0 parts of an anti-aging agent, 1.2 parts of polyethylene glycol, 8.5 parts of a tackifier A and 3.3 parts of a meta-alpha white system.
Example 2 of the present invention: the high adhesive strength reinforcing adhesive for shoe pressing comprises, by weight, 100 parts of standard adhesive, 2.1 parts of sulfur, 2.8 parts of vulcanization accelerator, 1.0 part of stearic acid, 8.0 parts of nano zinc oxide, 0.5 part of peptizer, 2.0 parts of anti-aging agent, 1.2 parts of polyethylene glycol, 8.5 parts of tackifier A and 3.3 parts of meta-alpha white system.
Example 3 of the present invention: the high-adhesive-strength reinforcing adhesive for shoe pressing comprises, by weight, 100 parts of natural adhesive, 2.2 parts of sulfur, 3.1 parts of a vulcanization accelerator, 1.0 part of stearic acid, 8.0 parts of nano zinc oxide, 0.5 part of a peptizer, 2.2 parts of an anti-aging agent, 1.2 parts of polyethylene glycol, 8.0 parts of a tackifier A and 3.2 parts of a meta-alpha white system.
Example 4 of the present invention: the high-adhesive-strength reinforcing adhesive for shoe pressing comprises, by weight, 100 parts of natural adhesive, 2.4 parts of sulfur, 2.5 parts of a vulcanization accelerator, 1.2 parts of stearic acid, 8.5 parts of nano zinc oxide, 0.3 part of a peptizer, 1.5 parts of an anti-aging agent, 1.4 parts of polyethylene glycol, 8.0 parts of a tackifier A and 3.5 parts of a meta-alpha white system.
Example 5 of the present invention: the high-adhesive-strength reinforcing adhesive for shoe pressing comprises, by weight, 100 parts of natural adhesive, 2.0 parts of sulfur, 3.5 parts of vulcanization accelerator, 0.8 part of stearic acid, 7.5 parts of nano zinc oxide, 0.7 part of peptizer, 2.5 parts of anti-aging agent, 1.0 part of polyethylene glycol, 9.0 parts of tackifier A and 3.0 parts of meta-alpha white system.
In the above embodiment, the natural rubber is a 2# standard rubber, and the vulcanization accelerator is prepared according to the following proportion: each 3.0 parts of vulcanization accelerator consists of 1.5 parts of accelerator DM, 0.5 part of accelerator CZ and 1.0 part of accelerator M; the model of the peptizer is DS-T-1; the metaformaldehyde white system is prepared according to the following proportion: each 3.3 parts of meta-alpha white system consists of 1.2 parts of white carbon black, 0.9 part of accelerator H and 1.2 parts of resorcinol; the specification and model of the anti-aging agent are 4010NA; the polyethylene glycol model was PEG4000.
The preparation method of the high-adhesive-strength reinforcing adhesive for the molded shoes comprises the following steps of taking the components in parts by weight; the method comprises the following steps:
1) Preparing a meta-alpha white system masterbatch: taking 10% of natural rubber and all the metaplasia white system by weight, and uniformly mixing at normal temperature on an open rubber mixing mill to obtain metaplasia white system master batch;
2) Preparing a plasticated rubber: adding the rest natural rubber, all peptizers and the meta-alpha white system masterbatch prepared in the step 1) into an internal mixer at 85-100 ℃ for refining and pressing for 10-12 minutes, and then pulling through 10-12 pieces on an open mill with a roll spacing of 0.5-1.0mm to obtain plasticated rubber with a Wilson plasticity of 0.78-0.82;
3) Preparing sulfur-free rubber compound: putting the plasticated rubber, the intermediate material and the tackifier A prepared in the step 2) into an internal mixer, wherein the intermediate material is a mixture of a vulcanization accelerator, stearic acid, nano zinc oxide, an anti-aging agent and polyethylene glycol, performing internal mixing in the internal mixer for 2 minutes 10 seconds to 2 parts 50 seconds, performing powder sweeping and turning for 15 seconds, performing powder sweeping and turning for 3 minutes 40 seconds to 4 minutes 20 seconds, performing powder sweeping and turning for 4 minutes 40 seconds to 5 minutes 20 seconds, spreading and cooling the discharged rubber compound on the ground, performing open rolling for 5 to 6 times in an open mill at a roll spacing of 3 mm to 4mm, and performing roll wrapping and sheet discharging to obtain a primary rubber compound of the high adhesive strength reinforcing rubber for the molded shoes;
4) Adding sulfur into the sizing material: the primary rubber compound of the high-adhesive-strength reinforcing rubber for the molded shoes, which is obtained in the step 3), is put on an XK-250 open rubber mixing machine with a roller spacing of 3-4mm, sulfur is added into a wrapping roller, the sulfur is uniformly turned over, and the high-adhesive-strength reinforcing rubber for the molded shoes is obtained after the rubber is put on a piece;
5) And (3) carrying out sheet formation of sulfur-containing high-adhesive-strength reinforcing adhesive: and (3) taking 500 g of sulfur-containing high-adhesion reinforcing rubber each time on an XK-250 open rubber mixing machine with a roll gap of 0.5-1.0mm, adding the rubber mixing machine, passing the rubber mixing machine under the roll gap of the rubber mixing machine, fully pulling out the rubber passing machine, putting the rubber passing machine into a clean cloth plate layer, cooling, and finishing to obtain the high-adhesion strength reinforcing rubber for bonding in the molding shoe molding process.
The application conditions of the high adhesive strength reinforcing adhesive for the molded shoes are as follows:
(1) The control range of the quick detection index of the sizing material after the high-adhesion reinforcing rubber is vulcanized and sulfur is added according to the formula proportion is as follows: the Wipe plasticity of the rubber compound is 0.65-0.70; the starting point of vulcanization of the mix at 143℃X20MPa (pressure) was 1'50"- -2'10".
(2) Application of high adhesive strength reinforcing adhesive for molded shoes: cutting the reinforcing film with the thickness of 0.8-1.0mm into adhesive tapes with the width of 12-15mm and the length of 70-80mm for standby use by using scissors. The standby reinforcing adhesive tape is fully covered and attached on the surface of a pulp brushing layer of the shoe edge bonding cloth cover heated by a forming sleeve last in the molding process of the compression molding shoe, then the shoe surrounding strip adhesive tape and the shoe sole adhesive tape are attached on the pulp brushing layer, and the rubber tape and the shoe sole adhesive tape are sent into a compression molding machine which accords with the temperature and the pressure for compression molding to prepare the compression molding shoe. The adhesive strength of the finished shoe can reach more than 6N/mm.
Claims (5)
1. A high adhesive strength reinforcing adhesive for mould pressing shoes is characterized in that: the adhesive comprises, by weight, 100 parts of natural rubber, 2.0-2.4 parts of sulfur, 2.5-3.5 parts of a vulcanization accelerator, 0.8-1.2 parts of stearic acid, 7.5-8.5 parts of nano zinc oxide, 0.3-0.7 part of a peptizer, 1.5-2.5 parts of an anti-aging agent, 1-1.4 parts of polyethylene glycol, 8-9 parts of a tackifier A and 3-3.5 parts of a meta-alpha-white system.
2. The high adhesive strength reinforcing adhesive for molded shoes according to claim 1, wherein: the adhesive comprises, by weight, 100 parts of natural rubber, 2.2 parts of sulfur, 3.0 parts of a vulcanization accelerator, 1.0 part of stearic acid, 8.0 parts of nano zinc oxide, 0.5 part of a peptizer, 2.0 parts of an anti-aging agent, 1.2 parts of polyethylene glycol, 8.5 parts of a tackifier A and 3.3 parts of a meta-alpha white system.
3. The high adhesive strength reinforcing adhesive for molded shoes according to claim 1 or 2, characterized in that: the natural rubber is 2# standard rubber, and the vulcanization accelerator is prepared according to the following proportion: each 3.0 parts of vulcanization accelerator consists of 1.5 parts of accelerator DM, 0.5 part of accelerator CZ and 1.0 part of accelerator M; the model of the peptizer is DS-T-1; the metaformaldehyde white system is prepared according to the following proportion: each 3.3 parts of meta-alpha white system consists of 1.2 parts of white carbon black, 0.9 part of accelerator H and 1.2 parts of resorcinol; the specification and model of the anti-aging agent are 4010NA; the polyethylene glycol model was PEG4000.
4. A method for preparing the high adhesive strength reinforcing adhesive for molded shoes as claimed in any one of claims 1 to 3, characterized in that: taking the components according to the parts by weight; the method comprises the following steps:
1) Preparing a meta-alpha white system masterbatch: taking 10% of natural rubber and all the metaplasia white system by weight, and uniformly mixing at normal temperature on an open rubber mixing mill to obtain metaplasia white system master batch;
2) Preparing a plasticated rubber: adding the rest natural rubber, all peptizers and the meta-alpha white system masterbatch prepared in the step 1) into an internal mixer at 85-100 ℃ for refining and pressing for 10-12 minutes, and then pulling through 10-12 pieces on an open mill with a roll spacing of 0.5-1.0mm to obtain plasticated rubber with a Wilson plasticity of 0.78-0.82;
3) Preparing sulfur-free rubber compound: putting the plasticated rubber, the intermediate material and the tackifier A prepared in the step 2) into an internal mixer, wherein the intermediate material is a mixture of a vulcanization accelerator, stearic acid, nano zinc oxide, an anti-aging agent and polyethylene glycol, performing internal mixing in the internal mixer for 2 minutes 10 seconds to 2 parts 50 seconds, performing powder sweeping and turning for 15 seconds, performing powder sweeping and turning for 3 minutes 40 seconds to 4 minutes 20 seconds, performing powder sweeping and turning for 4 minutes 40 seconds to 5 minutes 20 seconds, spreading and cooling the discharged rubber compound on the ground, performing open rolling for 5 to 6 times in an open mill at a roll spacing of 3 mm to 4mm, and performing roll wrapping and sheet discharging to obtain a primary rubber compound of the high adhesive strength reinforcing rubber for the molded shoes;
4) Adding sulfur into the sizing material: the primary rubber compound of the high-adhesive-strength reinforcing rubber for the molded shoes, which is obtained in the step 3), is put on an XK-250 open rubber mixing machine with a roller spacing of 3-4mm, sulfur is added into a wrapping roller, the sulfur is uniformly turned over, and the high-adhesive-strength reinforcing rubber for the molded shoes is obtained after the rubber is put on a piece;
5) And (3) carrying out sheet formation of sulfur-containing high-adhesive-strength reinforcing adhesive: and (3) taking 500 g of sulfur-containing high-adhesion reinforcing rubber each time on an XK-250 open rubber mixing machine with a roll gap of 0.5-1.0mm, adding the rubber mixing machine, passing the rubber mixing machine under the roll gap of the rubber mixing machine, fully pulling out the rubber passing machine, putting the rubber passing machine into a clean cloth plate layer, cooling, and finishing to obtain the high-adhesion strength reinforcing rubber for bonding in the molding shoe molding process.
5. The method for producing a high adhesive strength reinforcing adhesive for molded shoes according to claim 4, characterized in that:
the control range of the quick detection index of the sizing material after sulfur is added in the step 4) is as follows: the Wipe plasticity of the rubber compound is 0.65-0.70; the starting point of vulcanization of the mix at 143℃X20MPa is 1 '50' -2 '10'.
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| CN202311494437.0A CN117551403A (en) | 2023-11-10 | 2023-11-10 | High-adhesive-strength reinforcing adhesive for molded shoes and preparation method thereof |
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| CN202311494437.0A CN117551403A (en) | 2023-11-10 | 2023-11-10 | High-adhesive-strength reinforcing adhesive for molded shoes and preparation method thereof |
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