CN112708177B - Elastic rubber ring with high antibacterial property for fitness equipment - Google Patents
Elastic rubber ring with high antibacterial property for fitness equipment Download PDFInfo
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- CN112708177B CN112708177B CN202011594916.6A CN202011594916A CN112708177B CN 112708177 B CN112708177 B CN 112708177B CN 202011594916 A CN202011594916 A CN 202011594916A CN 112708177 B CN112708177 B CN 112708177B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
An elastic rubber ring with high antibacterial property for fitness equipment is composed of 55-80 parts of styrene butadiene rubber, 45-60 parts of nitrile rubber, 20-40 parts of modified phenolic resin, 10-20 parts of styrene-butadiene-styrene block copolymer, 15-20 parts of carbon black, 6-10 parts of aramid fiber, 3-6 parts of nano cellulose whisker, 1-5 parts of SiC micropowder wear-resistant agent, 1-2 parts of zinc oxide, 0.5-1.5 parts of silane coupling agent, 1-2 parts of vulcanization accelerator, 2-5 parts of microcrystalline paraffin, 1-3 parts of antibacterial agent and 0.5-3 parts of additive; the invention adopts the gamma-aminopropyl silsesquioxane to modify the phenolic resin, the amino-functionalized gamma-aminopropyl silsesquioxane reacts with the hydroxyl of the phenolic resin, the performance of the phenolic resin is improved, and the phenolic resin has better water resistance, heat resistance and oxidation resistance, and simultaneously, the styrene butadiene rubber, the nitrile butadiene rubber and the styrene-butadiene-styrene block copolymer are jointly used as basic raw materials, so that the system still has better wear resistance after being irradiated by ultraviolet light; the bacteriostatic agent is added, so that the bacteriostatic effect can be effectively achieved for a long time during the use period.
Description
Technical Field
The invention relates to the technical field of outdoor fitness equipment accessories, in particular to an elastic rubber ring with high antibacterial property for fitness equipment.
Background
With the pursuit of people for healthy life, outdoor fitness equipment gradually becomes an important tool in fitness and leisure sports, no matter in public places such as parks, squares and residential quarters, the public fitness equipment brings great consumption, but because the public fitness equipment is arranged outdoors for a long time, the public fitness equipment is exposed to the sun and rain for a long time, the fitness equipment is seriously damaged and aged, especially, accessories made of rubber materials such as rubber rings can be arranged outside a plurality of fitness equipment, the accessories are similar to handles, handrails and the like, under the conditions of improper use and natural aging, if the quality is poor, the conditions such as damage and aging can be caused, once the aging can cause the conditions such as the breakage of the rubber rings, certain potential safety hazards are realized, the general existing rubber materials do not have antibacterial action, and the functions are single.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an elastic rubber ring with high antibacterial property for fitness equipment, which is prepared from the following raw materials in parts by weight:
preferably, the preparation of the modified phenolic resin comprises the following steps: adding phenolic compounds according to a formula ratio, adding an alkaline catalyst, adjusting the pH value to 7.5-8.0, heating to 60-70 ℃, then adding the aldehyde compounds in batches, heating to 80-85 ℃, and carrying out heat preservation reaction for 15-35min to obtain a condensation liquid; adding gamma-aminopropyl silsesquioxane into the condensation liquid, adding raney nickel, stirring and reacting for 3-5 hours at 130-150 ℃ to obtain silsesquioxane grafted phenolic resin, namely the modified phenolic resin; wherein the mass ratio of the phenolic compound to the aldehyde compound to the basic catalyst to the gamma-aminopropyl silsesquioxane to the Raney nickel is 1 (0.3-0.4): (0.01-0.015): (2.5-3.5): (0.01-0.05).
Preferably, the bacteriostatic agent is hexamidine diisethionate.
Preferably, the vulcanization accelerator is N-cyclohexyl-2-benzothiazolylsulfenamide or tetramethylthiuram disulfide.
Preferably, the additive comprises an anti-aging agent and a plasticizer, wherein the anti-aging agent is (2,2,4-trimethyl-1,2-dihydroquinoline polymer), and the plasticizer is an epoxy fatty acid ester plasticizer.
A preparation method of an elastic rubber ring with high antibacterial property for fitness equipment comprises the following steps:
(1) Weighing styrene butadiene rubber, nitrile butadiene rubber, modified phenolic resin, styrene-butadiene-styrene block copolymer, aramid fiber and nano cellulose whisker in parts by weight, sending the mixture into an open mill for plastication and mixing uniformly, discharging rubber at 120-130 ℃, standing at room temperature for 24 hours, adding a formula amount of SiC micropowder wear-resistant agent, zinc oxide, silane coupling agent, vulcanization accelerator and microcrystalline wax, mixing on a double-roll open mill, and naturally cooling to room temperature to obtain a mixed material;
(2) Adding the mixed material into an internal mixer for mixing, sequentially adding zinc oxide, a bacteriostatic agent and an additive, discharging rubber when the temperature of the material is 130-150 ℃, and naturally cooling to room temperature to obtain an internal mixed material;
(3) And adding the banburying material into an injection molding system, changing the banburying material into a molten material through a screw extruder, injecting the molten material into a mold through a runner for molding, and cooling and shaping to obtain the elastic rubber ring.
Has the advantages that:
the phenolic resin is modified by adopting gamma-aminopropyl silsesquioxane, the amino-functionalized gamma-aminopropyl silsesquioxane reacts with hydroxyl of the phenolic resin, the performance of the phenolic resin is improved, and the phenolic resin has better water resistance, heat resistance and oxidation resistance; the bacteriostatic agent is added, so that the bacteriostatic effect can be effectively achieved for a long time during the use period.
Detailed Description
For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.
Examples 1-3 include the components and corresponding parts by weight shown in table 1;
TABLE 1
The vulcanization accelerator in example 1 was N-cyclohexyl-2-benzothiazolylsulfenamide, and the vulcanization accelerators in examples 2 and 3 were tetramethylthiuram disulfide.
Example 1
The preparation method of the elastic rubber ring with high antibacterial property comprises the following steps:
(1) The preparation of the modified phenolic resin comprises the following steps: adding phenolic compounds according to a formula ratio, adding an alkaline catalyst, adjusting the pH value to 7.5-8.0, heating to 60-70 ℃, then adding the aldehyde compounds in batches, heating to 80-85 ℃, and carrying out heat preservation reaction for 25min to obtain a condensation liquid; adding gamma-aminopropyl silsesquioxane into the condensation liquid, adding raney nickel, stirring at 130-150 ℃ and reacting for 3.5 hours to obtain silsesquioxane grafted phenolic resin, namely the modified phenolic resin; wherein the mass ratio of the phenolic compound to the aldehyde compound to the basic catalyst to the gamma-aminopropyl silsesquioxane to the raney nickel is 1.35;
(2) Weighing styrene butadiene rubber, nitrile butadiene rubber, modified phenolic resin, styrene-butadiene-styrene block copolymer, aramid fiber and nano cellulose whisker in parts by weight, sending the mixture into an open mill for plastication and mixing uniformly, discharging rubber at 120-130 ℃, standing at room temperature for 24 hours, adding a formula amount of SiC micropowder wear-resistant agent, zinc oxide, silane coupling agent, vulcanization accelerator and microcrystalline wax, mixing on a double-roll open mill, and naturally cooling to room temperature to obtain a mixed material;
(3) Adding the mixed material into an internal mixer for mixing, sequentially adding zinc oxide, a bacteriostatic agent and an additive, discharging rubber when the temperature of the material is 130-150 ℃, and naturally cooling to room temperature to obtain an internal mixed material;
(4) And adding the banburying materials into an injection molding system, changing the banburying materials into molten materials through a screw extruder, injecting the molten materials into a mold through a flow channel for molding, and then cooling and shaping to obtain the elastic rubber ring.
The test shows that the elongation at break Eb =590 percent and the Akron is worn after 48 hours of ultraviolet irradiation (cm) 3 1.61 km) of 0.22, and no cracks when soaked in hot water at 105 ℃ for more than 300 hours.
Example 2
The preparation method of the elastic rubber ring with high antibacterial property comprises the following steps:
(1) The preparation of the modified phenolic resin comprises the following steps: adding phenolic compounds according to a formula ratio, adding an alkaline catalyst, adjusting the pH value to 7.5-8.0, heating to 60-70 ℃, then adding the aldehyde compounds in batches, heating to 80-85 ℃, and carrying out heat preservation reaction for 30min to obtain a condensation liquid; adding gamma-aminopropyl silsesquioxane into the condensation liquid, adding raney nickel, stirring and reacting for 5 hours at 130-150 ℃ to obtain silsesquioxane grafted phenolic resin, namely the modified phenolic resin; wherein the mass ratio of the phenolic compound, the aldehyde compound, the basic catalyst, the gamma-aminopropyl silsesquioxane and the raney nickel is 1;
(2) Weighing styrene butadiene rubber, nitrile butadiene rubber, modified phenolic resin, styrene-butadiene-styrene block copolymer, aramid fiber and nano cellulose whisker in parts by weight, sending the mixture into an open mill for plastication and mixing uniformly, discharging rubber at 120-130 ℃, standing at room temperature for 24 hours, adding a formula amount of SiC micropowder wear-resistant agent, zinc oxide, silane coupling agent, vulcanization accelerator and microcrystalline wax, mixing on a double-roll open mill, and naturally cooling to room temperature to obtain a mixed material;
(3) Adding the mixed material into an internal mixer for mixing, sequentially adding zinc oxide, a bacteriostatic agent and an additive, discharging rubber when the temperature of the material is 130-150 ℃, and naturally cooling to room temperature to obtain an internal mixed material;
(4) And adding the banburying materials into an injection molding system, changing the banburying materials into molten materials through a screw extruder, injecting the molten materials into a mold through a flow channel for molding, and then cooling and shaping to obtain the elastic rubber ring.
The test shows that the elongation at break Eb =605%, and the Arthrone is worn after 48h of ultraviolet irradiation (cm) 3 1.61 km) of 0.22, and no cracks when soaked in hot water at 105 ℃ for more than 300 hours.
Example 3
The preparation method of the elastic rubber ring with high antibacterial property comprises the following steps:
(1) The preparation of the modified phenolic resin comprises the following steps: adding phenolic compounds according to a formula ratio, adding an alkaline catalyst, adjusting the pH value to 7.5-8.0, heating to 60-70 ℃, then adding the aldehyde compounds in batches, heating to 80-85 ℃, and carrying out heat preservation reaction for 20min to obtain a condensation liquid; adding gamma-aminopropyl silsesquioxane into the condensation liquid, adding raney nickel, stirring and reacting for 5 hours at 130-150 ℃ to obtain silsesquioxane grafted phenolic resin, namely the modified phenolic resin; wherein the mass ratio of the phenolic compound to the aldehyde compound to the basic catalyst to the gamma-aminopropyl silsesquioxane to the raney nickel is 1.015;
(2) Weighing styrene butadiene rubber, nitrile butadiene rubber, modified phenolic resin, styrene-butadiene-styrene block copolymer, aramid fiber and nano cellulose whisker in parts by weight, sending the mixture into an open mill for plastication and mixing uniformly, discharging rubber at 120-130 ℃, standing at room temperature for 24 hours, then adding SiC micropowder wear-resisting agent, zinc oxide, silane coupling agent, vulcanization accelerator and microcrystalline paraffin in formula amount, mixing on a double-roll open mill, and naturally cooling to room temperature to obtain a mixed material;
(3) Adding the mixed material into an internal mixer for mixing, sequentially adding zinc oxide, a bacteriostatic agent and an additive, discharging rubber when the temperature of the material is 130-150 ℃, and naturally cooling to room temperature to obtain an internal mixed material;
(4) And adding the banburying materials into an injection molding system, changing the banburying materials into molten materials through a screw extruder, injecting the molten materials into a mold through a flow channel for molding, and then cooling and shaping to obtain the elastic rubber ring.
The test shows that the elongation at break Eb =586% and the Akron is worn after 48h of ultraviolet irradiation (cm) 3 1.61 km) of 0.20 and no cracks after being soaked in hot water at 105 ℃ for more than 300 hours.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. An elastic rubber ring with high antibacterial property for fitness equipment is characterized by being prepared from the following raw materials in parts by weight:
55-80 parts of styrene butadiene rubber
45-60 parts of nitrile rubber
20-40 parts of modified phenolic resin
10-20 parts of styrene-butadiene-styrene block copolymer
15-20 parts of carbon black
6-10 parts of aramid fiber
3-6 parts of nano cellulose whisker
1-5 parts of SiC micropowder wear-resistant agent
1-2 parts of zinc oxide
0.5 to 1.5 portions of silane coupling agent
1-2 parts of vulcanization accelerator
2-5 parts of microcrystalline paraffin
1-3 parts of bacteriostatic agent
0.5-3 parts of an additive;
the preparation of the modified phenolic resin comprises the following steps: adding phenolic compounds according to a formula ratio, adding an alkaline catalyst, adjusting the pH value to 7.5-8.0, heating to 60-70 ℃, then adding the aldehyde compounds in batches, heating to 80-85 ℃, and carrying out heat preservation reaction for 15-35min to obtain a condensation liquid; adding gamma-aminopropyl silsesquioxane into the condensation liquid, adding raney nickel, stirring and reacting at 130-150 ℃ for 3-5h to obtain silsesquioxane grafted phenolic resin, namely the modified phenolic resin; wherein the mass ratio of the phenolic compound to the aldehyde compound to the basic catalyst to the gamma-aminopropyl silsesquioxane to the Raney nickel is 1 (0.3-0.4): (0.01-0.015): (2.5-3.5): (0.01-0.05); the additive is an anti-aging agent and a plasticizer.
2. The elastic rubber ring with high antibacterial property for the fitness equipment as claimed in claim 1, wherein the antibacterial agent is hexamidine diisethionate.
3. The elastic rubber ring with high antibacterial property for fitness equipment as claimed in claim 1, wherein the vulcanization accelerator is N-cyclohexyl-2-benzothiazyl sulfenamide or tetramethylthiuram disulfide.
4. The elastic rubber ring with high antibacterial property for the fitness equipment as claimed in claim 1, wherein the additive is an anti-aging agent and a plasticizer, the anti-aging agent is (2,2,4-trimethyl-1,2-dihydroquinoline polymer), and the plasticizer is an epoxy fatty acid ester plasticizer.
5. The method for preparing the elastic rubber ring with high antibacterial property for the body-building equipment as claimed in claim 1, which comprises the following steps:
weighing styrene butadiene rubber, nitrile butadiene rubber, modified phenolic resin, styrene-butadiene-styrene block copolymer, aramid fiber and nano cellulose whisker in parts by weight, sending the mixture into an open mill for plastication and mixing uniformly, discharging rubber at 120-130 ℃, standing at room temperature for 24 hours, adding a formula amount of SiC micropowder wear-resistant agent, zinc oxide, silane coupling agent, vulcanization accelerator and microcrystalline wax, mixing on a double-roll open mill, and naturally cooling to room temperature to obtain a mixed material;
adding the mixed material into an internal mixer for mixing, sequentially adding zinc oxide, a bacteriostatic agent and an additive, discharging rubber when the temperature of the material is 130-150 ℃, and naturally cooling to room temperature to obtain an internal mixed material;
and adding the banburying materials into an injection molding system, changing the banburying materials into molten materials through a screw extruder, injecting the molten materials into a mold through a flow channel for molding, and then cooling and shaping to obtain the elastic rubber ring.
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| CN114957818B (en) * | 2022-04-19 | 2023-03-21 | 华南理工大学 | Nitrile rubber-phenolic resin composite material and preparation method and application thereof |
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| JPH06329838A (en) * | 1993-05-20 | 1994-11-29 | Kao Corp | Rubber composition |
| JP2008255198A (en) * | 2007-04-03 | 2008-10-23 | Kaneka Corp | Resin mixture and cured article of the same |
| CN101319037A (en) * | 2008-07-18 | 2008-12-10 | 黑龙江省科学院石油化学研究院 | Modified phenolic resin and preparation method thereof |
| CN106496475A (en) * | 2016-09-21 | 2017-03-15 | 沈阳化工大学 | A kind of heat-resistant phenolic resins preparation method for carrying eight amino cage silsesquioxane structures |
| CN106543390A (en) * | 2016-10-21 | 2017-03-29 | 沈阳化工大学 | A kind of tetrahydroxy polyhedral silsesquioxane heat-resistant phenolic resins preparation method |
| WO2018070387A1 (en) * | 2016-10-13 | 2018-04-19 | 日本製紙株式会社 | Method for producing rubber composition |
| CN111234149A (en) * | 2020-03-16 | 2020-06-05 | 北京玻钢院复合材料有限公司 | Preparation method of amino POSS (polyhedral oligomeric silsesquioxane) grafted and modified ablation-resistant phenolic resin and phenolic resin |
-
2020
- 2020-12-29 CN CN202011594916.6A patent/CN112708177B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06329838A (en) * | 1993-05-20 | 1994-11-29 | Kao Corp | Rubber composition |
| JP2008255198A (en) * | 2007-04-03 | 2008-10-23 | Kaneka Corp | Resin mixture and cured article of the same |
| CN101319037A (en) * | 2008-07-18 | 2008-12-10 | 黑龙江省科学院石油化学研究院 | Modified phenolic resin and preparation method thereof |
| CN106496475A (en) * | 2016-09-21 | 2017-03-15 | 沈阳化工大学 | A kind of heat-resistant phenolic resins preparation method for carrying eight amino cage silsesquioxane structures |
| WO2018070387A1 (en) * | 2016-10-13 | 2018-04-19 | 日本製紙株式会社 | Method for producing rubber composition |
| JPWO2018070387A1 (en) * | 2016-10-13 | 2019-08-08 | 日本製紙株式会社 | Method for producing rubber composition |
| CN106543390A (en) * | 2016-10-21 | 2017-03-29 | 沈阳化工大学 | A kind of tetrahydroxy polyhedral silsesquioxane heat-resistant phenolic resins preparation method |
| CN111234149A (en) * | 2020-03-16 | 2020-06-05 | 北京玻钢院复合材料有限公司 | Preparation method of amino POSS (polyhedral oligomeric silsesquioxane) grafted and modified ablation-resistant phenolic resin and phenolic resin |
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