CN114133631A - Environment-friendly health-care rubber pad mixed compound and preparation method thereof - Google Patents
Environment-friendly health-care rubber pad mixed compound and preparation method thereof Download PDFInfo
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- CN114133631A CN114133631A CN202111485990.9A CN202111485990A CN114133631A CN 114133631 A CN114133631 A CN 114133631A CN 202111485990 A CN202111485990 A CN 202111485990A CN 114133631 A CN114133631 A CN 114133631A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/107—Nitroso compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2307/00—Characterised by the use of natural rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2417/00—Characterised by the use of reclaimed rubber
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses an environment-friendly health-care rubber pad rubber compound which comprises the following components in percentage by weight: 10-35% of natural rubber, and rubber powder: 5-10% of carbon black, 1-5% of carbon black, 30-40% of calcium carbonate, 1-5% of anti-aging agent, 5-8% of other accessory ingredients and 1.5-5% of vulcanization accelerator. The product of the invention has proper rigidity, ductility, excellent foaming ratio, good pore uniformity, and excellent physical properties and processing technology performance.
Description
Technical Field
The invention relates to the technical field of rubber manufacturing, in particular to an environment-friendly health-care rubber pad mixed rubber and a preparation method thereof.
Background
In recent years, the economic growth of China is large, the national fitness becomes a trend, and the household sports equipment presents a good development situation. In the application of household sports equipment, the rubber health-care pad is more and more important, and the environmental protection aspect is more and more important.
The plastic track for outdoor use consists of polyurethane prepolymer, mixed polyether, waste tyre rubber, EPDM rubber grain or PU grain, pigment, assistant and stuffing. The plastic track has the characteristics of good flatness, high compressive strength, proper hardness and elasticity and stable physical performance, is beneficial to the exertion of the speed and the technology of athletes, effectively improves the sports performance and reduces the tumble injury rate. The plastic track is made of materials such as polyurethane rubber, has certain elasticity and color, and has certain ultraviolet resistance and aging resistance, but the preparation hardness of the existing EPDM rubber particles cannot be adjusted, so that the application range is limited, and the plastic track is not beneficial to popularization and household use.
The environment-friendly body-building rubber pad (foaming) mixed rubber material can effectively improve the foaming multiplying power, reduce the vulcanizing time and improve the enterprise efficiency. Meanwhile, the environment-friendly rubber pad has high requirements on environment protection, realizes no toxicity and harm to human bodies, is an ideal material for household indoor fitness equipment, and needs to be researched and developed for producing an environment-friendly fitness rubber pad (foaming) mixing rubber material.
Disclosure of Invention
The invention provides an environment-friendly body-building rubber pad compound and a preparation method thereof, which aim at the problems.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly health-care rubber pad compound comprises the following components in parts by weight:
10 to 30 percent of natural rubber,
rubber powder: 5 to 10 percent of the total weight of the mixture,
carbon black: 1 to 5 percent of the total weight of the mixture,
calcium carbonate: 30 to 40 percent of the total weight of the mixture,
softening agent: 10 to 20 percent of the total weight of the mixture,
an anti-aging agent: 1 to 5 percent of the total weight of the mixture,
other compounding agents: 5 to 8 percent of the total weight of the mixture,
vulcanization accelerator (b): 1.5 to 5 percent.
Preferably, the environment-friendly body-building rubber pad compound comprises the following components:
10 to 30 percent of natural rubber,
rubber powder: 5 to 10 percent of the total weight of the mixture,
carbon black: 1 to 5 percent of the total weight of the mixture,
calcium carbonate: 30 to 40 percent of the total weight of the mixture,
softening agent: 10 to 20 percent of the total weight of the mixture,
an anti-aging agent: 1 to 5 percent of the total weight of the mixture,
other compounding agents: 5 to 8 percent of the total weight of the mixture,
vulcanization accelerator (b): 1.5 to 5 percent.
The grade of the natural rubber is SVR3L, and the rubber powder is recycled environment-friendly rubber powder with south ventilation capability. The natural rubber has excellent physical properties, better wear resistance, high strength, good rebound resilience, low temperature resistance and fatigue resistance and lower price. Compared with natural rubber, the rubber powder has lower price, and can improve the reuse rate of the rubber and realize the recycling value of the rubber.
The carbon black is N330, and the calcium carbonate is CaCO3Compared with white carbon black, carbon black has better compression permanent deformation resistance and higher stress at definite elongation. The calcium carbonate is a neutral filler, and can greatly improve the specific gravity of the sizing material.
The softener is NAPH1522 and is used for improving the hardness and comfort of the sizing material, so that the handfeel of the product is improved. The softener is an environment-friendly softener and is non-toxic and harmless to human bodies.
The anti-aging agent is a mixture of WIOL-W, RD and MA-L16. RD can improve heat resistance of the rubber material, WIOL-W can improve oil absorption rate of the rubber material and prevent oil spraying of the rubber material, MA-L16 can improve dispersity of the rubber material, and all substances can be fully dispersed in the rubber material
The other compounding agent is a mixture of zinc oxide, stearic acid and operation auxiliary agent.
The vulcanization accelerator is a mixture of sulfur, an accelerator TT, an accelerator DM and a foaming agent DD-4.
The invention also provides a preparation method of the environment-friendly health-care rubber pad compound, which comprises the following preparation steps according to the performance requirement characteristics of the formula.
(1) Preparing materials in the following sequence:
natural rubber, rubber powder → carbon black, calcium carbonate → softener → anti-aging agent, other compounding agent → vulcanization accelerator;
(2) firstly, mixing, namely firstly putting natural rubber, rubber powder and other ingredients into an internal mixer for mixing for 60 s; adding a softener into an internal mixer, keeping the mixing temperature at 140 ℃ for 30s, and then cleaning an upper plug; adding the anti-aging agent, mixing for 40-60s, and cleaning again; finally, mixing for 50-70s, discharging and discharging to obtain the rubber compound A for later use;
(3) and (3) second mixing, namely adding the vulcanization accelerator into the mixed rubber A, mixing for 60-90 seconds, cleaning, mixing for 30-60 seconds again, and ensuring that the mixed rubber is fully mixed and dispersed and then is discharged for later use.
The invention adopts natural rubber as main rubber, has low price, good wear resistance, low temperature resistance and physical properties, and can improve the slightly inferior weatherability of the rubber by matching with the anti-aging agent. The use of carbon black and calcium carbonate filling has achieved the desired stiffness of the product. The compound is added with softener in consideration of the service performance and the elastic memory softness of the product, and the liquid softener NAPH122 is used for increasing the processing performance of the compound. The traditional rubber pad sizing material uses a high-sulfur high-promotion vulcanization system, is very unstable, easily causes the ejection of sulfur or an accelerant in the using process, uses urea, a foaming agent H and the like as a foaming system, and volatilizes pungent smell in the foaming system process and has trace toxicity to a human body. The invention uses the sulfur carrier to replace partial sulfur, can avoid the phenomenon, endows the rubber material with better heat resistance, uses the environment-friendly foaming agent, has no pungent smell, and is non-toxic and harmless. The product of the invention has good physical properties, uniform foaming pores and high foaming multiplying power, can meet the performance requirements of the rubber compound for the body-building rubber pad (foaming), and has better foaming rate and environmental protection.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples 1 to 4
The rubber preparation for the body-building rubber pad (foaming) rubber compound is prepared according to the following steps, and the raw materials are accurately weighed in sequence according to the proportion shown in the table 1 and are placed for later use.
Firstly, mixing, namely firstly putting natural rubber, rubber powder and other ingredients into an internal mixer for mixing for 60 s; adding a softener into an internal mixer, keeping the mixing temperature at 140 ℃ for 30s, and then cleaning an upper plug; adding the anti-aging agent, mixing for 40-60s, and cleaning again; finally, mixing for 50-70s, discharging and discharging to obtain the rubber compound A for later use;
and (3) second mixing, namely adding the vulcanization accelerator into the mixed rubber A, mixing for 60-90 seconds, cleaning, mixing for 30-60 seconds again, and ensuring that the mixed rubber is fully mixed and dispersed and then is discharged for later use.
Table 1 shows the mixing ratios of the components in examples 1 to 4 in terms of mass fractions.
TABLE 1
Table 2 shows the kneading times of examples 1 to 4.
TABLE 2
Table 3 shows the performance parameters of the rubber exercise pads (foam) mixtures prepared in examples 1-4.
TABLE 3
(ii) the detection method is described in appendix A of TBT2626-1995
② the detection method refers to TBT2626-1995 appendix B
As can be seen from Table 3, the rubber composition for exercise (foaming) of the present invention has the following characteristics:
firstly, natural rubber is used as main rubber, the performance is excellent, the strength performance is good, the price is low, and calcium carbonate, a softening agent and a foaming agent are used for adjusting the foaming ratio. As the proportion of the foaming agent increases, the foaming ratio of the rubber compound becomes better, but the physical properties are lowered. Secondly, calcium carbonate is used as the main filler, which gives the compound good extensibility and, in addition, the use of softeners gives the compound good softness. The samples of the four examples can meet the use requirements of the body-building rubber pad (foaming), and the foaming ratio is excellent. On the premise of meeting the performance requirements, a matching scheme with optimal cost performance can be reasonably selected according to the changes of the natural rubber, the calcium carbonate, the softening agent and the foaming agent.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An environment-friendly health-care rubber pad compound is characterized by comprising the following components in parts by mass:
10 to 30 percent of natural rubber,
rubber powder: 5 to 10 percent of the total weight of the mixture,
carbon black: 1 to 5 percent of the total weight of the mixture,
calcium carbonate: 30 to 40 percent of the total weight of the mixture,
softening agent: 10 to 20 percent of the total weight of the mixture,
an anti-aging agent: 1 to 5 percent of the total weight of the mixture,
other compounding agents: 5 to 8 percent of the total weight of the mixture,
1.5 to 5 percent of vulcanization accelerator;
the other compounding agent is a mixture of zinc oxide, stearic acid and operation auxiliary agent.
2. The environmentally friendly exercise rubber pad compound of claim 1, wherein the natural rubber brand is SVR 3L.
3. The environment-friendly rubber pad compound for fitness as recited in claim 1, wherein the rubber powder is JF.
4. The environmentally friendly exercise rubber mat compound of claim 1, wherein the carbon black is N330.
5. The environment-friendly rubber pad compound as claimed in claim 1, wherein the calcium carbonate is CaCO3。
6. The environmentally friendly exercise rubber mat compound of claim 1, wherein the anti-aging agent is a mixture of WIOL-W, RD, MA-L16.
7. The environmentally friendly exercise rubber mat compound of claim 1, wherein the softener is NAPH 1522.
8. The environment-friendly rubber pad compound as claimed in claim 1, wherein the vulcanization accelerator is a mixture of S, TT, DM and DD-4.
9. The preparation method of the environment-friendly rubber pad compound for body building as claimed in any one of claims 1 to 8, wherein the preparation method comprises the following steps: the method sequentially comprises the following steps:
(1) preparing materials, wherein the preparation sequence is as follows: natural rubber and rubber powder, carbon black and calcium carbonate, softener anti-aging agent, other accessory ingredients and finally vulcanization accelerator;
(2) firstly, mixing, namely firstly putting natural rubber, rubber powder and other ingredients into an internal mixer for mixing for 60 s; adding a softener into an internal mixer, keeping the mixing temperature at 140 ℃ for 30s, and then cleaning an upper plug; adding the anti-aging agent, mixing for 40-60s, and cleaning again; finally, mixing for 50-70s, discharging and discharging to obtain the rubber compound A for later use;
(3) and (3) second mixing, namely adding the vulcanization accelerator into the mixed rubber A, mixing for 60-90 seconds, cleaning, mixing for 30-60 seconds again, and ensuring that the mixed rubber is fully mixed and dispersed and then is discharged for later use.
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| CN202111485990.9A CN114133631A (en) | 2021-12-07 | 2021-12-07 | Environment-friendly health-care rubber pad mixed compound and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104523109A (en) * | 2014-12-10 | 2015-04-22 | 广州同欣康体设备有限公司 | Elastic safety rubber mat and preparation method thereof |
| CN106117634A (en) * | 2016-06-23 | 2016-11-16 | 宁波博瀚工艺品有限公司 | A kind of resisting fatigue health mat using rubber expanded material and preparation method thereof |
| CN106515144A (en) * | 2016-11-04 | 2017-03-22 | 宁波博瀚工艺品有限公司 | Ultrathin microcellular foaming rubber yoga sports mat and preparation method thereof |
| CN111154150A (en) * | 2019-12-30 | 2020-05-15 | 际华易北河高分子材料科技(岳阳)有限公司 | high-Mooney natural rubber foaming rubber compound and preparation method thereof |
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2021
- 2021-12-07 CN CN202111485990.9A patent/CN114133631A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104523109A (en) * | 2014-12-10 | 2015-04-22 | 广州同欣康体设备有限公司 | Elastic safety rubber mat and preparation method thereof |
| CN106117634A (en) * | 2016-06-23 | 2016-11-16 | 宁波博瀚工艺品有限公司 | A kind of resisting fatigue health mat using rubber expanded material and preparation method thereof |
| CN106515144A (en) * | 2016-11-04 | 2017-03-22 | 宁波博瀚工艺品有限公司 | Ultrathin microcellular foaming rubber yoga sports mat and preparation method thereof |
| CN111154150A (en) * | 2019-12-30 | 2020-05-15 | 际华易北河高分子材料科技(岳阳)有限公司 | high-Mooney natural rubber foaming rubber compound and preparation method thereof |
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