Anti-oxidation impact-resistant rubber strip for billiard table and preparation method of anti-oxidation impact-resistant rubber strip
By combining the low-money neoprene, modified neoprene and Gumoney neoprene, and using graft reaction and thermal composite technology, a neoprene composition that is resistant to oxidation and impact resistance is prepared, solving the problem of insufficient performance of existing neoprene rubber strips in billiard table applications, and a significant improvement in mechanical properties, low-temperature resistance and oxidation resistance are achieved.
Patent Information
- Application Number
- CN202411824372.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-03-07
Smart Images
Figure CN119565116A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of rubber composite materials, and specifically discloses an anti-oxidation and impact-resistant rubber strip for a billiard table and a preparation method thereof. Background Art
[0002] The rubber strips pasted on the inner frame of the pool table need to have high mechanical properties, impact resistance and durability; chloroprene rubber is widely used due to its excellent mechanical properties, weather resistance and solvent resistance, but it still has disadvantages such as poor processing performance, poor fatigue resistance, aging resistance needs to be improved, and poor heat resistance and oxidation resistance, which need to be further improved.
[0003] The commonly used modification methods in the prior art include physical modification and chemical modification, which are further divided into copolymerization modification, grafting modification, filling modification, and blending modification. Each of the above modification methods has its own advantages and disadvantages, and the compatibility problem and the balance problem of various properties need to be considered during the modification. If the modification operation is improper, it is likely to lead to a decrease in the performance of the chloroprene rubber itself. In summary, it is of great significance to study an anti-oxidation and impact-resistant chloroprene rubber strip with excellent properties that can be applied to billiard tables and a preparation method thereof. Summary of the invention
[0004] The object of the present invention is to provide an anti-oxidation and impact-resistant rubber strip for a billiard table and a preparation method thereof, so as to solve the problems raised in the prior art.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: A method for preparing an antioxidant and impact-resistant rubber strip for a billiard table, comprising the following steps: S1: dissolving chloroprene rubber (low Mooney chloroprene rubber) in a solvent (toluene), adding an initiator (benzoyl peroxide), methyl methacrylate, hydroxyethyl methacrylate, and ditrimethylolpropane acrylate, stirring at 80-85° C. for 5-6 hours, adding a terminator (hydroquinone and 2,6-di-tert-butyl-p-cresol in a mass ratio of 1:1) to obtain an intermediate; adding dodecyl sulfonyl chloride, mixing evenly, heating to 30-35° C. under nitrogen protection, reacting for 10-12 hours, adding 3-methyl-8-quinolinesulfonyl chloride, reacting for 10-12 hours, removing the solvent, and obtaining a modified chloroprene rubber; mixing high Mooney chloroprene rubber, modified chloroprene rubber, and low Mooney chloroprene rubber to obtain a chloroprene rubber composition; S2: Add the chloroprene rubber composition and stearic acid into an internal mixer and mix for 30 to 60 seconds; add white carbon black and mix for 3 to 5 minutes; add vulcanizing agent STRUKTOL ZIMAG 29 / 43 and accelerator DM, mix, thin pass, and vulcanize to obtain a rubber layer; attach the pretreated fiber cloth to the surface (single side) of the rubber layer, and heat-compound to obtain a rubber strip.
[0006] More optimally, the modified chloroprene rubber includes the following raw materials, by mass: 100-130 parts of low Mooney chloroprene rubber, 600-800 parts of solvent, 1-2 parts of initiator, 30-40 parts of methyl methacrylate, 25-35 parts of hydroxyethyl methacrylate, 3-4 parts of ditrimethylolpropane acrylate, 0.01-0.02 parts of terminator, 30-40 parts of dodecyl sulfonyl chloride, and 15-20 parts of 3-methyl-8-quinoline sulfonyl chloride.
[0007] More optimally, in the chloroprene rubber composition, the mass ratio of high Mooney chloroprene rubber, modified chloroprene rubber, and low Mooney chloroprene rubber is (5-6): (1-2): (1-2).
[0008] More optimally, the Mooney viscosity of the high Mooney chloroprene rubber is 110-130 (ML1+4100°C), and the Mooney viscosity of the low Mooney chloroprene rubber is 30-50 (ML1+4100°C).
[0009] More optimally, the rubber layer comprises the following raw materials, calculated by weight: 100 parts of chloroprene rubber composition, 1-2 parts of stearic acid, 40-50 parts of white carbon black, 3-5 parts of vulcanizing agent, and 1-2 parts of accelerator.
[0010] More optimally, the preparation process of the pretreated fiber cloth specifically includes the following steps: mixing hydrogen-containing polysiloxane and platinum catalyst to obtain a treatment agent; spraying the treatment agent on the surface of the fiber cloth (nylon) at a spraying amount of 8-10 g / cm 2 , to obtain a pretreated fiber cloth.
[0011] More optimally, the treatment agent includes the following raw materials, calculated by weight: 10-15 parts of hydrogen-containing polysiloxane and 0.5-1 part of platinum catalyst.
[0012] More optimally, the preparation process of the pretreated fiber cloth specifically includes the following steps: mixing hydrogen-containing polysiloxane and platinum catalyst to obtain a treatment agent; spraying the treatment agent on the surface of the fiber cloth (nylon) at a spraying amount of 10 g / cm 2 , to obtain a pretreated fiber cloth.
[0013] More optimally, the treatment agent includes the following raw materials, calculated by weight: 10 parts of hydrogen-containing polysiloxane and 1 part of platinum catalyst.
[0014] More optimally, the thermal composite process is: treatment at 60-70°C for 15-20 min; and vulcanization conditions are 160-170°C and pressure 5-15 MPa for 18-20 min.
[0015] More optimally, the thermal composite process is: treatment at 65°C for 20 minutes; vulcanization conditions are 170°C and pressure 10MPa for 18 minutes.
[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the chloroprene rubber composition comprises high-Money chloroprene rubber, modified chloroprene rubber and low-Money chloroprene rubber; the high-Money chloroprene rubber has better mechanical properties, but poor processing performance, and the addition of low-Money chloroprene rubber disrupts the regular arrangement of the high-Money chloroprene rubber, thereby improving fluidity on the one hand and ensuring strength on the other hand while improving low-temperature resistance; The preparation method of modified chloroprene rubber is as follows: firstly, methyl methacrylate, hydroxyethyl methacrylate and ditrimethylolpropane acrylate are grafted on the low Mooney chloroprene rubber chain to obtain an intermediate; then, dodecyl sulfonyl chloride and 3-methyl-8-quinoline sulfonyl chloride are added successively to obtain modified chloroprene rubber; the grafted acrylate is helpful to improve the heat resistance and strength, wherein ditrimethylolpropane acrylate contains multiple double bonds, and the addition amount thereof needs to be strictly controlled: the appropriate multi-branched structure is helpful to improve the toughness and impact resistance, however, too many branches lead to excessive decrease in the regularity of the modified chloroprene rubber, decrease in mechanical properties, and poor compatibility with the chloroprene rubber composition The compatibility of the other two raw materials in the reaction mixture is reduced; hydroxyethyl methacrylate provides a reaction site for the next step of modification. In the next step of the reaction, dodecylsulfonyl chloride is first added. The long carbon chain structure interpenetrates and entangles with the chloroprene rubber molecular chain to form an interpenetrating network that disperses stress, improves impact resistance, and alleviates the brittleness problem caused by the introduction of methyl methacrylate; then 3-methyl-8-quinolinesulfonyl chloride is added to improve the aging resistance of chloroprene rubber; this addition sequence reduces the impact of the decreased grafting rate caused by the large steric hindrance of 3-methyl-8-quinolinesulfonyl chloride, and further improves the performance of the modified chloroprene rubber; After the rubber layer is obtained, the rubber layer is bonded to the pretreated fiber cloth so that the rubber strip is more closely attached to the billiard tabletop. The fiber cloth is pretreated and the surface is sprayed with hydrogen-containing polysiloxane and platinum catalyst to react with the residual double bonds in the chloroprene rubber composition, thereby further improving the anti-oxidation property of the rubber layer and making the two tightly bonded. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a real picture of the adhesive strip. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0019] The following parts are by mass unless otherwise specified; Example 1: S1: 120 parts of low Mooney chloroprene rubber are dissolved in 600 parts of toluene solvent, 1.5 parts of initiator benzoyl peroxide, 35 parts of methyl methacrylate, 30 parts of hydroxyethyl methacrylate, and 4 parts of ditrimethylolpropane acrylate are added, and stirred at 85°C for 5 hours, and 0.01 parts of hydroquinone and 0.01 parts of 2,6-di-tert-butyl-p-cresol are added to obtain an intermediate; 35 parts of dodecylsulfonyl chloride are added, and the mixture is mixed evenly, and the mixture is heated to 30°C under nitrogen protection, and the mixture is reacted for 10 hours, and 16 parts of 3-methyl-8-quinolinesulfonyl chloride are added, and the mixture is reacted for 12 hours, and the solvent is removed to obtain a modified chloroprene rubber; high Mooney chloroprene rubber M-120, modified chloroprene rubber, and low Mooney chloroprene rubber DCR-40A are mixed in a mass ratio of 5:1.5:1 to obtain a chloroprene rubber composition; S2: The internal mixer is cooled by water, and the temperature of the internal mixer working room is controlled not to exceed 50°C. 100 parts of chloroprene rubber composition and 1.5 parts of stearic acid are added, and mixed for 40 seconds; 45 parts of white carbon black are added, and mixed for 4 minutes; 4 parts of vulcanizing agent STRUKTOLZIMAG 29 / 43 and 1 part of accelerator DM are added, and mixed until the temperature reaches 110°C, then discharged, thin-passed, and vulcanized to obtain a rubber layer; pre-treated fiber cloth is attached to the surface of the rubber layer, and thermally compounded to obtain a rubber strip.
[0020] Example 2: S1: 100 parts of low Mooney chloroprene rubber are dissolved in 600 parts of toluene solvent, 1.5 parts of initiator benzoyl peroxide, 30 parts of methyl methacrylate, 25 parts of hydroxyethyl methacrylate, and 3 parts of ditrimethylolpropane acrylate are added, and stirred at 85°C for 5 hours, and 0.01 parts of hydroquinone and 0.01 parts of 2,6-di-tert-butyl-p-cresol are added to obtain an intermediate; 30 parts of dodecylsulfonyl chloride are added, and the mixture is mixed evenly, and the mixture is heated to 30°C under nitrogen protection, and the mixture is reacted for 10 hours, and 15 parts of 3-methyl-8-quinolinesulfonyl chloride are added, and the mixture is reacted for 12 hours, and the solvent is removed to obtain a modified chloroprene rubber; high Mooney chloroprene rubber M-120, modified chloroprene rubber, and low Mooney chloroprene rubber DCR-40A are mixed in a mass ratio of 5:2:1 to obtain a chloroprene rubber composition; S2: The internal mixer is cooled by water, and the temperature of the internal mixer working room is controlled not to exceed 50°C. 100 parts of chloroprene rubber composition and 2 parts of stearic acid are added, and mixed for 30 seconds; 40 parts of white carbon black are added, and mixed for 5 minutes; 5 parts of vulcanizing agent STRUKTOL ZIMAG29 / 43 and 1 part of accelerator DM are added, and mixed until the temperature reaches 110°C, then discharged, thinned, and vulcanized to obtain a rubber layer; pre-treated fiber cloth is attached to the surface of the rubber layer, and thermally compounded to obtain a rubber strip.
[0021] Example 3: S1: 130 parts of low Mooney chloroprene rubber are dissolved in 600 parts of toluene solvent, 1.5 parts of initiator benzoyl peroxide, 40 parts of methyl methacrylate, 35 parts of hydroxyethyl methacrylate, and 4 parts of ditrimethylolpropane acrylate are added, and stirred at 85°C for 5 hours, and 0.01 parts of hydroquinone and 0.01 parts of 2,6-di-tert-butyl-p-cresol are added to obtain an intermediate; 40 parts of dodecylsulfonyl chloride are added, and the mixture is mixed evenly, and the mixture is heated to 30°C under nitrogen protection, and the mixture is reacted for 10 hours, and 20 parts of 3-methyl-8-quinolinesulfonyl chloride are added, and the mixture is reacted for 12 hours, and the solvent is removed to obtain a modified chloroprene rubber; high Mooney chloroprene rubber M-120, modified chloroprene rubber, and low Mooney chloroprene rubber DCR-40A are mixed in a mass ratio of 6:2:2 to obtain a chloroprene rubber composition; S2: The internal mixer is cooled by water, and the temperature of the internal mixer working room is controlled not to exceed 50°C. 100 parts of chloroprene rubber composition and 1 part of stearic acid are added, and mixed for 60 seconds; 50 parts of white carbon black are added, and mixed for 3 minutes; 3 parts of vulcanizing agent STRUKTOL ZIMAG29 / 43 and 2 parts of accelerator DM are added, and mixed until the temperature reaches 110°C, then discharged, thinned, and vulcanized to obtain a rubber layer; pre-treated fiber cloth is attached to the surface of the rubber layer, and thermally compounded to obtain a rubber strip.
[0022] Example 4: S1: 120 parts of low Mooney chloroprene rubber are dissolved in 600 parts of toluene solvent, 1.5 parts of initiator benzoyl peroxide, 35 parts of methyl methacrylate, 25 parts of hydroxyethyl methacrylate, and 3 parts of ditrimethylolpropane acrylate are added, and stirred at 85°C for 5 hours, and 0.01 parts of hydroquinone and 0.01 parts of 2,6-di-tert-butyl-p-cresol are added to obtain an intermediate; 30 parts of dodecylsulfonyl chloride are added, and the mixture is mixed evenly, and the mixture is heated to 30°C under nitrogen protection, and the mixture is reacted for 10 hours, and 20 parts of 3-methyl-8-quinolinesulfonyl chloride are added, and the mixture is reacted for 12 hours, and the solvent is removed to obtain a modified chloroprene rubber; high Mooney chloroprene rubber M-120, modified chloroprene rubber, and low Mooney chloroprene rubber DCR-40A are mixed in a mass ratio of 5:1:1 to obtain a chloroprene rubber composition; S2: The internal mixer is cooled by water, and the temperature of the internal mixer working room is controlled not to exceed 50°C. 100 parts of chloroprene rubber composition and 1 part of stearic acid are added, and the mixture is mixed for 60 seconds; 50 parts of white carbon black are added, and the mixture is mixed for 3 minutes; 3 parts of vulcanizing agent STRUKTOL ZIMAG29 / 43 and 1 part of accelerator DM are added, and the mixture is mixed until the temperature reaches 110°C, and then the mixture is discharged, thinned, and vulcanized to obtain a rubber layer; a pre-treated fiber cloth is attached to the surface of the rubber layer, and the rubber strip is obtained by thermal compounding.
[0023] Comparative Example 1 (the amount of raw materials added to the chloroprene rubber composition is changed, and the remaining method steps are consistent with Example 1): S1: 120 parts of low Mooney chloroprene rubber are dissolved in 600 parts of toluene solvent, 1.5 parts of initiator benzoyl peroxide, 35 parts of methyl methacrylate, 30 parts of hydroxyethyl methacrylate, and 4 parts of ditrimethylolpropane acrylate are added, and stirred at 85° C. for 5 hours, 0.01 parts of hydroquinone and 0.01 parts of 2,6-di-tert-butyl-p-cresol are added to obtain an intermediate; 35 parts of dodecyl sulfonyl chloride are added, mixed evenly, heated to 30° C. under nitrogen protection, reacted for 10 hours, 16 parts of 3-methyl-8-quinolinesulfonyl chloride are added, reacted for 12 hours, and the solvent is removed to obtain a modified chloroprene rubber; high Mooney chloroprene rubber M-120, modified chloroprene rubber, and low Mooney chloroprene rubber DCR-40A are mixed in a mass ratio of 4:2.5:0.5 to obtain a chloroprene rubber composition; S2: The internal mixer is cooled by water, and the temperature of the internal mixer working room is controlled not to exceed 50°C. 100 parts of chloroprene rubber composition and 1.5 parts of stearic acid are added, and mixed for 40 seconds; 45 parts of white carbon black are added, and mixed for 4 minutes; 4 parts of vulcanizing agent STRUKTOLZIMAG 29 / 43 and 1 part of accelerator DM are added, and mixed until the temperature reaches 110°C, then discharged, thin-passed, and vulcanized to obtain a rubber layer; pre-treated fiber cloth is attached to the surface of the rubber layer, and thermally compounded to obtain a rubber strip.
[0024] Comparative Example 2 (the amount of methyl methacrylate, hydroxyethyl methacrylate, and ditrimethylolpropane acrylate added was changed, and the remaining steps were consistent with those of Example 1): S1: 120 parts of low Mooney chloroprene rubber were dissolved in 600 parts of toluene solvent, 1.5 parts of initiator benzoyl peroxide, 45 parts of methyl methacrylate, 40 parts of hydroxyethyl methacrylate, and 8 parts of ditrimethylolpropane acrylate were added, stirred at 85° C. for 5 h, and 0.01 parts of hydroquinone were added. , 0.01 parts of 2,6-di-tert-butyl-p-cresol to obtain an intermediate; add 35 parts of dodecylsulfonyl chloride, mix evenly, heat to 30°C under nitrogen protection, react for 10 hours, add 16 parts of 3-methyl-8-quinolinesulfonyl chloride, react for 12 hours, remove the solvent to obtain modified chloroprene rubber; mix high Mooney chloroprene rubber M-120, modified chloroprene rubber, and low Mooney chloroprene rubber DCR-40A in a mass ratio of 5:1.5:1 to obtain a chloroprene rubber composition; S2: The internal mixer is cooled by water, and the temperature of the internal mixer working room is controlled not to exceed 50°C. 100 parts of chloroprene rubber composition and 1.5 parts of stearic acid are added, and mixed for 40 seconds; 45 parts of white carbon black are added, and mixed for 4 minutes; 4 parts of vulcanizing agent STRUKTOLZIMAG 29 / 43 and 1 part of accelerator DM are added, and mixed until the temperature reaches 110°C, then discharged, thin-passed, and vulcanized to obtain a rubber layer; pre-treated fiber cloth is attached to the surface of the rubber layer, and thermally compounded to obtain a rubber strip.
[0025] Comparative Example 3 (dodecyl sulfonyl chloride and 3-methyl-8-quinoline sulfonyl chloride are added simultaneously, and the remaining steps are consistent with those of Example 1): S1: 120 parts of low Mooney chloroprene rubber are dissolved in 600 parts of toluene solvent, 1.5 parts of initiator benzoyl peroxide, 35 parts of methyl methacrylate, 30 parts of hydroxyethyl methacrylate, and 4 parts of ditrimethylolpropane acrylate are added, and the mixture is stirred at 85° C. for 5 h, and 0.01 parts of hydroquinone and 0.01 parts of 2,6-di-tert-butyl-p-cresol are added to obtain an intermediate; 35 parts of dodecyl sulfonyl chloride and 16 parts of 3-methyl-8-quinoline sulfonyl chloride are added, and the mixture is uniformly mixed, and the mixture is heated to 30° C. under nitrogen protection, and the mixture is reacted for 22 h, and the solvent is removed to obtain a modified chloroprene rubber; high Mooney chloroprene rubber M-120, modified chloroprene rubber, and low Mooney chloroprene rubber DCR-40A are mixed in a mass ratio of 5:1.5:1 to obtain a chloroprene rubber composition; S2: The internal mixer is cooled by water, and the temperature of the internal mixer working room is controlled not to exceed 50°C. 100 parts of chloroprene rubber composition and 1.5 parts of stearic acid are added, and mixed for 40 seconds; 45 parts of white carbon black are added, and mixed for 4 minutes; 4 parts of vulcanizing agent STRUKTOLZIMAG 29 / 43 and 1 part of accelerator DM are added, and mixed until the temperature reaches 110°C, then discharged, thin-passed, and vulcanized to obtain a rubber layer; pre-treated fiber cloth is attached to the surface of the rubber layer, and thermally compounded to obtain a rubber strip.
[0026] Comparative Example 4 (when preparing modified chloroprene rubber, high Mooney chloroprene rubber is used, and the remaining method steps are consistent with Example 1): S1: 120 parts of high Mooney chloroprene rubber are dissolved in 600 parts of toluene solvent, 1.5 parts of initiator benzoyl peroxide, 35 parts of methyl methacrylate, 30 parts of hydroxyethyl methacrylate, and 4 parts of ditrimethylolpropane acrylate are added, and stirred at 85° C. for 5 hours, 0.01 parts of hydroquinone and 0.01 parts of 2,6-di-tert-butyl-p-cresol are added to obtain an intermediate; 35 parts of dodecyl sulfonyl chloride are added, mixed evenly, heated to 30° C. under nitrogen protection, reacted for 10 hours, 16 parts of 3-methyl-8-quinolinesulfonyl chloride are added, reacted for 12 hours, and the solvent is removed to obtain modified chloroprene rubber; high Mooney chloroprene rubber M-120, modified chloroprene rubber, and low Mooney chloroprene rubber DCR-40A are mixed in a mass ratio of 5:1.5:1 to obtain a chloroprene rubber composition; S2: The internal mixer is cooled by water, and the temperature of the internal mixer working room is controlled not to exceed 50°C. 100 parts of chloroprene rubber composition and 1.5 parts of stearic acid are added, and mixed for 40 seconds; 45 parts of white carbon black are added, and mixed for 4 minutes; 4 parts of vulcanizing agent STRUKTOLZIMAG 29 / 43 and 1 part of accelerator DM are added, and mixed until the temperature reaches 110°C, then discharged, thin-passed, and vulcanized to obtain a rubber layer; pre-treated fiber cloth is attached to the surface of the rubber layer, and thermally compounded to obtain a rubber strip.
[0027] In the above embodiments, the test methods used are conventional methods unless otherwise specified; the raw materials used are commercially available unless otherwise specified, and the sources of the raw materials are as follows: stearic acid (CAS: 57-11-4); white carbon black (IOTAFINE SIL515, Anhui Iota Silicone Oil Co., Ltd.); vulcanizing agent (STRUKTOL ZIMAG 29 / 43); accelerator DM (CAS: 120-78-5); hydrogen-containing polysiloxane (GHQGY01, Jinan Shanhai Chemical Technology Co., Ltd.); platinum catalyst (IOTAKP30, Anhui Iota Silicone Oil Co., Ltd.); high Mooney chloroprene rubber M-120 (Japan Denka); low Mooney chloroprene rubber DCR-40A (Japan Denka); toluene (CAS: 108-88-3); benzoyl peroxide (CAS: 94-36-0); methyl acrylate Methyl methacrylate (CAS: 80-62-6); hydroxyethyl methacrylate (CAS: 868-77-9); ditrimethylolpropane acrylate (Y57622, Shanghai Yuanye); hydroquinone (CAS: 123-31-9); 2,6-di-tert-butyl-p-cresol (CAS: 128-37-0); dodecylsulfonyl chloride (CAS: 10147-40-7); 3-methyl-8-quinolinesulfonyl chloride (CAS: 74863-82-4).
[0028] Experiment: Take the rubber layers prepared in Examples 1 to 3 and Comparative Examples 1 to 4; (1) refer to GB / T528-2009, test the tensile strength and elongation at break to characterize the impact resistance. The greater the tensile strength and elongation at break, the better the impact resistance; (2) after being placed at 120°C for 150h, test the tensile strength retention rate to characterize the antioxidant capacity; see the table below for specific data;
[0029] Conclusion: In comparative example 1, the amount of raw materials added to the chloroprene rubber composition is changed, the amount of low Mooney chloroprene rubber and high Mooney chloroprene rubber added is reduced, the amount of modified chloroprene rubber increased, and the performance is reduced, so it can be seen that the amount of addition needs to be controlled; in comparative example 2, the amount of methyl methacrylate, hydroxyethyl methacrylate, and ditrimethylolpropane acrylate added is increased, and the performance is reduced due to excessive branching, and the compatibility of the modified chloroprene rubber with the other two raw materials of the chloroprene rubber composition is reduced; in comparative example 3, dodecyl sulfonyl chloride and 3-methyl-8-quinoline sulfonyl chloride are added simultaneously, and the performance is reduced due to the influence of steric hindrance on the grafting rate; in comparative example 4, high Mooney chloroprene rubber is used when preparing the modified chloroprene rubber, so that the polymer components in the chloroprene rubber composition are more, which affects the performance; in summary, the rubber layer and rubber strip prepared by the present invention have good mechanical properties and good oxidation resistance, and have the advantages of good impact resistance and durability.
[0030] 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.
Claims
1. A method for preparing an antioxidant and impact-resistant rubber strip for a billiard table, characterized in that: The following steps are involved: S1: adding the chloroprene rubber composition and stearic acid into an internal mixer, mixing for 30 to 60 seconds; adding white carbon black, mixing for 3 to 5 minutes, adding a vulcanizing agent and an accelerator, mixing, thinning, and vulcanizing to obtain a rubber layer; S2: Laminating the pretreated fiber cloth on the surface of the rubber layer, and thermally laminating the pretreated fiber cloth to obtain a rubber strip.
2. The method for preparing an antioxidant and impact-resistant rubber strip for a billiard table according to claim 1, characterized in that: The rubber layer comprises the following raw materials, calculated by weight: 100 parts of chloroprene rubber composition, 1-2 parts of stearic acid, 40-50 parts of white carbon black, 3-5 parts of vulcanizing agent, and 1-2 parts of accelerator.
3. The method for preparing an antioxidant and impact-resistant rubber strip for a billiard table according to claim 1, characterized in that: The chloroprene rubber composition comprises high Mooney chloroprene rubber, modified chloroprene rubber and low Mooney chloroprene rubber; The preparation of the modified chloroprene rubber comprises the following steps: Dissolve chloroprene rubber in a solvent, add initiator, methyl methacrylate, hydroxyethyl methacrylate, ditrimethylolpropane acrylate, stir at 80-85°C for 5-6 hours, add terminator to obtain an intermediate; add dodecylsulfonyl chloride, mix evenly, heat to 30-35°C under nitrogen protection, react for 10-12 hours, add 3-methyl-8-quinolinesulfonyl chloride, react for 10-12 hours, remove the solvent to obtain modified chloroprene rubber.
4. The method for preparing an antioxidant and impact-resistant rubber strip for a billiard table according to claim 3, characterized in that: The modified chloroprene rubber comprises the following raw materials, calculated by weight: 100-130 parts of chloroprene rubber, 600-800 parts of solvent, 1-2 parts of initiator, 30-40 parts of methyl methacrylate, 25-35 parts of hydroxyethyl methacrylate, 3-4 parts of ditrimethylolpropane acrylate, 0.01-0.02 parts of terminator, 30-40 parts of dodecyl sulfonyl chloride, and 15-20 parts of 3-methyl-8-quinoline sulfonyl chloride.
5. The method for preparing an antioxidant and impact-resistant rubber strip for a billiard table according to claim 3, characterized in that: In the chloroprene rubber composition, the mass ratio of high Mooney chloroprene rubber, modified chloroprene rubber and low Mooney chloroprene rubber is (5-6):(1-2):(1-2).
6. The method for preparing an anti-oxidation and impact-resistant rubber strip for a billiard table according to claim 3, characterized in that: The Mooney viscosity of the high-Mooney chloroprene rubber is 110-130, and the Mooney viscosity of the low-Mooney chloroprene rubber is 30-50.
7. The method for preparing an anti-oxidation and impact-resistant rubber strip for a billiard table according to claim 1, characterized in that: The preparation of the pretreated fiber cloth specifically comprises the following steps: mixing hydrogen-containing polysiloxane and platinum catalyst to obtain a treatment agent; spraying the treatment agent on the surface of the fiber cloth at a spraying amount of 8-10 g / cm 2 , to obtain a pretreated fiber cloth.
8. The method for preparing an anti-oxidation and impact-resistant rubber strip for a billiard table according to claim 7, characterized in that: The treating agent comprises the following raw materials, calculated by weight: 10-15 parts of hydrogen-containing polysiloxane and 0.5-1 part of platinum catalyst.
9. The method for preparing an anti-oxidation and impact-resistant rubber strip for a billiard table according to claim 1, characterized in that: The thermal composite process is: treatment at 60-70°C for 15-20min; and the vulcanization conditions are 160-170°C and a pressure of 5-15MPa for 18-20min.
10. A rubber strip according to the method for preparing an antioxidant and impact-resistant rubber strip for a billiard table according to any one of claims 1 to 9.