CN112063179A - Novel mildew-proof antibacterial silicone rubber and preparation method thereof - Google Patents
Novel mildew-proof antibacterial silicone rubber and preparation method thereof Download PDFInfo
- Publication number
- CN112063179A CN112063179A CN202010949117.XA CN202010949117A CN112063179A CN 112063179 A CN112063179 A CN 112063179A CN 202010949117 A CN202010949117 A CN 202010949117A CN 112063179 A CN112063179 A CN 112063179A
- Authority
- CN
- China
- Prior art keywords
- silicone rubber
- parts
- antibacterial
- stirring
- novel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the technical field of silicone rubber materials, and relates to novel mildew-proof antibacterial silicone rubber and a preparation method thereof, wherein the mildew-proof antibacterial silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 2-10 parts of hydroxyl silicone oil, 2-5 parts of titanate coupling agent, 20-100 parts of white carbon black, 1-2 parts of vulcanizing agent, 1-5 parts of polyhexamethylene diamine guanidine, 1-2 parts of epichlorohydrin and 0.1-0.5 part of mold release agent. The novel antibacterial silicone rubber has good antibacterial property and simple preparation process, simultaneously maintains the mechanical property of the silicone rubber, and has good application prospect.
Description
Technical Field
The invention belongs to the technical field of silicon rubber materials, and relates to novel mildew-proof antibacterial silicon rubber and a preparation method thereof.
Background
The silicon rubber material has the characteristics of excellent mechanical property, chemical corrosion resistance, water resistance, moisture resistance and the like, and is widely applied in the field of ocean engineering. Because the working environment of ocean engineering equipment is warm and humid, the silicon rubber material is easily attached by microorganisms and bacteria, so that the service life of the silicon rubber is shortened and the replacement frequency is increased due to the fact that the material is discolored, mildewed and rapidly degraded, the research and development of antibacterial silicon rubber are significant, and the research and development and the technical development of the antibacterial silicon rubber are urgent and necessary.
The cost of the existing mildew-proof antibacterial silicone rubber is often too high to obtain a good antibacterial effect, the antibacterial property is often poorer to enhance the mechanical property, and a silicone rubber material with good mechanical property and antibacterial property is lacked.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide novel silicon mildew-proof antibacterial silicone rubber and a preparation method thereof.
The invention is realized by the following technical scheme:
the novel mildew-proof antibacterial silicone rubber is characterized by being prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 2-10 parts of hydroxyl silicone oil, 2-5 parts of titanate coupling agent, 20-100 parts of white carbon black, 1-2 parts of vulcanizing agent, 1-5 parts of polyhexamethylene diamine guanidine, 1-2 parts of epichlorohydrin and 0.1-0.5 part of mold release agent.
The molecular weight of the methyl vinyl silicone rubber is between 600000 and 700000.
The vinyl content of the methyl vinyl silicone rubber is 0.1-0.3 mol%.
The white carbon black is treated by silazane, and the particle size is 10-1000 nm.
The coupling agent is titanate and epoxy chloropropane.
The antibacterial agent is polyhexamethylene diamine guanidine.
The vulcanizing agent is 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane.
A preparation method of novel mildew-proof antibacterial silicone rubber is characterized by comprising the following steps:
1) adding the methyl vinyl silicone rubber, the white carbon black, the polyhexamethylene diamine guanidine, the hydroxyl silicone oil and the release agent into a kneading machine, and stirring without heating to obtain a molding material;
2) heating and stirring the molding material to 160 ℃ at 140 ℃, and keeping the temperature and stirring for 0.5-1 hour;
3) adding titanate coupling agent and epichlorohydrin into the material, and stirring for 0.5-1 hour under heat preservation to obtain silicone rubber material;
4) keeping the temperature of the materials, vacuumizing and stirring for 0.5-1 hour;
5) adding the silicon rubber material and 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane into an open rubber mixing mill, uniformly mixing, and then placing the mixture into a flat plate vulcanizing machine to vulcanize for 5 minutes at 175 ℃ to prepare the antibacterial silicon rubber.
The invention has the beneficial effects that: the novel mildew-proof antibacterial silicone rubber has the advantages of good antibacterial effect, simple preparation process, excellent mechanical property, lower cost and the like, and particularly, the antibacterial silicone rubber has good mechanical property and antibacterial property by adding poly (hexamethylene diamine guanidine), titanate and epichlorohydrin.
The mildew-proof antibacterial silicone rubber has good antibacterial property, and retains the excellent mechanical properties of the silicone rubber; the novel high-temperature silicon rubber has the tensile strength of more than 9.0MPa, the elongation at break of more than 500 percent, the hardness (Shore A) of more than 50 and the density of less than 1.25g/cm3The invention has high strength, good elasticity and low density; the bacteriostasis rate of the invention exceeds 90 percent, which shows that the invention has good antibacterial performance.
Detailed Description
For a further understanding of the invention, reference will now be made to the following description of embodiments, but it will be understood that the description is intended to illustrate further features and advantages of the invention, and not to limit the scope of the claims.
< example 1>
The mildew-proof antibacterial silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 2 parts of hydroxyl silicone oil, 2 parts of titanate coupling agent, 50 parts of white carbon black, 1 part of vulcanizing agent, 2 parts of polyhexamethylene diamine guanidine, 2 parts of epoxy chloropropane and 0.2 part of release agent.
The preparation method comprises the following steps:
1) adding methyl vinyl silicone rubber, white carbon black, hydroxyl silicone oil, polyhexamethylene diamine guanidine and a release agent into a kneading machine, and stirring for 20 minutes without heating to obtain a molding material;
2) heating and stirring the formed material to 140 ℃, and keeping the temperature and stirring for 1 hour.
3) Adding titanate coupling agent and epichlorohydrin into the material, and stirring for 0.5 hour under heat preservation to obtain silicone rubber material;
4) the materials were kept warm and evacuated for 0.5 hour.
5) And adding the obtained silicon rubber material and 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane into an open rubber mixing mill, uniformly mixing, and then placing the mixture into a flat plate vulcanizing machine to vulcanize for 5 minutes at 175 ℃ to obtain the antibacterial silicon rubber.
< example 2>
The mildew-proof antibacterial silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 3 parts of hydroxyl silicone oil, 3 parts of titanate coupling agent, 50 parts of white carbon black, 1 part of vulcanizing agent, 3 parts of polyhexamethylene diamine guanidine, 3 parts of epoxy chloropropane and 0.2 part of release agent.
The preparation method comprises the following steps:
1) adding methyl vinyl silicone rubber, white carbon black, hydroxyl silicone oil, polyhexamethylene diamine guanidine and a release agent into a kneading machine, and stirring for 20 minutes without heating to obtain a molding material;
2) heating and stirring the formed material to 150 ℃, and keeping the temperature and stirring for 1 hour.
3) Adding titanate coupling agent and epichlorohydrin into the material, and stirring for 1 hour under heat preservation to obtain the silicone rubber compound.
4) The materials are vacuumized, kept warm and stirred for 0.5 hour.
5) And adding the silicon rubber material and 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane into an open rubber mixing mill, uniformly mixing, and then placing the mixture into a flat plate vulcanizing machine to vulcanize for 5 minutes at 175 ℃ to prepare the antibacterial silicon rubber.
< example 3>
The mildew-proof antibacterial silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 2 parts of hydroxyl silicone oil, 5 parts of titanate coupling agent, 50 parts of white carbon black, 1 part of vulcanizing agent, 5 parts of polyhexamethylene diamine guanidine, 2 parts of epichlorohydrin and 0.2 part of release agent.
The preparation method comprises the following steps:
1) adding methyl vinyl silicone rubber, white carbon black, hydroxyl silicone oil, polyhexamethylene diamine guanidine and a release agent into a kneading machine, and stirring for 20 minutes without heating to obtain a molding material;
2) heating and stirring the molding material to 160 ℃, and keeping the temperature and stirring for 0.5 hour.
3) Adding titanate coupling agent and epichlorohydrin into the material, and stirring for 0.5 hour under heat preservation to obtain the silicone rubber compound.
4) The materials are vacuumized, kept warm and stirred for 1 hour.
5) And adding the silicon rubber material and 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane into an open rubber mixing mill, uniformly mixing, and then placing the mixture into a flat plate vulcanizing machine to vulcanize for 5 minutes at 175 ℃ to prepare the antibacterial silicon rubber.
Performance detection
The hardness (Shore A) is tested according to the GB/T531-1999 standard; the tensile strength and the elongation at break are tested according to the GB/T528-1998 standard; and (3) testing antibacterial performance:
(1) cutting the rubber sheet into 1cm × 11cm pieces, and cleaning with ethanol.
(2) The staphylococcus aureus strain is activated to prepare bacterial suspension with the concentration of 1 × 104 cfu/ml-5 × 104 cfu/ml. And then putting the cut rubber sheet into the container.
(3) The Erlenmeyer flask containing the bacterial suspension and the rubber sheet is fixed on a shaking table and shaken for 2min at the temperature of 20-25 ℃ and at the speed of 300 r/min. Then 1.0ml of the bacterial suspension was diluted to 100-fold.
(4) Sucking l.0ml of the shaken sample solution, inoculating on agar medium, and culturing at 37 deg.C for 48h under natural light. Colony counts were then performed as described in GB 15979-2003.
(5) Both blank and negative controls of the experiment were run as described above.
(6) The test is repeated for 3 times, and the bacteriostasis rate is calculated according to a formula.
The mildewproof antibacterial silicone rubbers prepared in examples 1 to 3 were subjected to performance tests and compared with antibacterial silicone rubbers manufactured by a company of Guangdong, and the comparison results are shown in Table 1.
Table 1 shows a comparison of the performance indexes of the mildewproof antibacterial silicone rubber prepared in examples 1 to 3 and a comparative antibacterial silicone rubber.
| Item/number | Example 1 | Example 2 | Example 3 | Comparative example |
| Tensile strength/MPa | 9.35 | 9.27 | 9.18 | 8.29 |
| Elongation at break/% | 520 | 585 | 537 | 466 |
| Hardness (Shao Er A) | 51 | 51 | 52 | 56 |
| Inhibition rate/%) | 92.1 | 90.8 | 91.7 | 62.9 |
| Density/g/cm 3 | 1.24 | 1.21 | 1.19 | 1.38 |
As can be seen from Table 1, the tensile strength of the novel high-temperature silicone rubber is more than 9MPa, and the elongation at break is more than 500 percent, which is superior to that of the comparative example. The Shore hardness is lower than that of the comparative example, which shows that the invention has good softness and elasticity. The bacteriostasis rate of the invention is over 90 percent, which is superior to that of the comparative example, and shows that the invention has good antibacterial performance. The density of the invention is lower than 1.25g/cm3The raw materials are wide in source, the process is simple, and the cost can be effectively reduced.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (8)
1. The novel mildew-proof antibacterial silicone rubber is characterized by being prepared from the following raw materials in parts by weight:
2. the novel mildew-proof antibacterial silicone rubber as claimed in claim 1, wherein: the molecular weight of the methyl vinyl silicone rubber is between 600000 and 700000.
3. The novel mildewproof antibacterial silicone rubber according to claim 1 or 2, wherein: the vinyl content of the methyl vinyl silicone rubber is 0.1-0.3 mol%.
4. The novel mildew-proof antibacterial silicone rubber as claimed in claim 1, wherein: the white carbon black is treated by silazane, and the particle size is 10-1000 nm.
5. The novel mildew-proof antibacterial silicone rubber as claimed in claim 1, wherein: the coupling agent is titanate and epoxy chloropropane.
6. The novel mildew-proof antibacterial silicone rubber as claimed in claim 1, wherein: the antibacterial agent polyhexamethylene diamine guanidine is a reaction product of hexamethylene diamine and guanidine hydrochloride.
7. The novel mildew-proof antibacterial silicone rubber as claimed in claim 1, wherein: the vulcanizing agent is 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane.
8. The preparation method of the novel mildew-proof antibacterial silicone rubber according to claim 1, wherein the preparation method specifically comprises the following steps:
1) adding the methyl vinyl silicone rubber, the white carbon black, the polyhexamethylene diamine guanidine, the hydroxyl silicone oil and the release agent into a kneading machine, and stirring without heating to obtain a molding material;
2) heating and stirring the molding material to 160 ℃ at 140 ℃, and keeping the temperature and stirring for 0.5-1 hour;
3) adding titanate coupling agent and epichlorohydrin into the material, and stirring for 0.5-1 hour under heat preservation to obtain silicone rubber material;
4) keeping the temperature of the materials, vacuumizing and stirring for 0.5-1 hour;
5) adding the silicon rubber material and 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane into an open rubber mixing mill, uniformly mixing, and then placing the mixture into a flat plate vulcanizing machine to vulcanize for 5 minutes at 175 ℃ to prepare the antibacterial silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949117.XA CN112063179A (en) | 2020-09-10 | 2020-09-10 | Novel mildew-proof antibacterial silicone rubber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949117.XA CN112063179A (en) | 2020-09-10 | 2020-09-10 | Novel mildew-proof antibacterial silicone rubber and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112063179A true CN112063179A (en) | 2020-12-11 |
Family
ID=73663581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010949117.XA Pending CN112063179A (en) | 2020-09-10 | 2020-09-10 | Novel mildew-proof antibacterial silicone rubber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112063179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114316604A (en) * | 2021-12-29 | 2022-04-12 | 广东天跃新材料股份有限公司 | Mildew-proof antibacterial silicone rubber fabric and production process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005255863A (en) * | 2004-03-12 | 2005-09-22 | Shin Etsu Chem Co Ltd | Flame-retardant silicone rubber composition |
| CN101565548A (en) * | 2008-04-21 | 2009-10-28 | 曲奕 | Antibacterial glue inside lining of polyhexamethylene guanide water pipe |
| CN106832932A (en) * | 2015-12-04 | 2017-06-13 | 张美玲 | A kind of silica gel shoe-pad |
| CN111073592A (en) * | 2019-12-30 | 2020-04-28 | 江苏天辰新材料股份有限公司 | Novel antibacterial and mildew-proof silicone sealant and preparation method thereof |
| CN111471202A (en) * | 2020-05-19 | 2020-07-31 | 南京师范大学 | Antibacterial silicon rubber material and preparation method and application thereof |
-
2020
- 2020-09-10 CN CN202010949117.XA patent/CN112063179A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005255863A (en) * | 2004-03-12 | 2005-09-22 | Shin Etsu Chem Co Ltd | Flame-retardant silicone rubber composition |
| CN101565548A (en) * | 2008-04-21 | 2009-10-28 | 曲奕 | Antibacterial glue inside lining of polyhexamethylene guanide water pipe |
| CN106832932A (en) * | 2015-12-04 | 2017-06-13 | 张美玲 | A kind of silica gel shoe-pad |
| CN111073592A (en) * | 2019-12-30 | 2020-04-28 | 江苏天辰新材料股份有限公司 | Novel antibacterial and mildew-proof silicone sealant and preparation method thereof |
| CN111471202A (en) * | 2020-05-19 | 2020-07-31 | 南京师范大学 | Antibacterial silicon rubber material and preparation method and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| 中国材料研究学会等主编: "《中国战略性新兴产业 新材料 环境工程材料》", 30 November 2018, 北京：中国铁道出版社 * |
| 曾平等: ""聚六亚甲基胍盐酸盐的合成研究"", 《日用化学工业》 * |
| 马一平等主编: "《建筑功能材料》", 31 March 2014, 上海：同济大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114316604A (en) * | 2021-12-29 | 2022-04-12 | 广东天跃新材料股份有限公司 | Mildew-proof antibacterial silicone rubber fabric and production process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112063180A (en) | Antibacterial and mildew-proof high-temperature vulcanized silicone rubber and preparation method thereof | |
| CN111073592A (en) | Novel antibacterial and mildew-proof silicone sealant and preparation method thereof | |
| CN112063179A (en) | Novel mildew-proof antibacterial silicone rubber and preparation method thereof | |
| CN109666602B (en) | Composite bacteria for degrading oily sewage and preparation method thereof | |
| CN111100815B (en) | Pseudomonas for degrading PBAT (poly (butylene adipate-co-terephthalate)) plastic and application thereof | |
| CN112063178A (en) | Novel antibacterial silicone rubber and preparation method thereof | |
| CN113698623A (en) | High-biological-activity lignin and preparation method thereof | |
| CN111574679A (en) | Degradable TiO2Polylactic acid grafted polyurethane antibacterial material and preparation method thereof | |
| CN108659545B (en) | Silicone rubber composite material and preparation method thereof | |
| Gallert | Degradation of latex and of natural rubber by Streptomyces strain La 7 | |
| CN111100465B (en) | Super-hydrophobic elastomer based on antibacterial nano silver/carbon nano tube microsphere/replica elastic surface and preparation method thereof | |
| CN116715884A (en) | Preparation method of modified cellulose nanocrystalline-chitosan-plant essential oil composite membrane | |
| CN114230690B (en) | Preparation method of low-heat-generation high-performance natural rubber | |
| CN115716921A (en) | Bio-based anti-aging agent and preparation method and application thereof | |
| CN114410501B (en) | Polystyrene efficient degradation bacterial strain and application thereof | |
| CN114752140B (en) | Low-density functional elastomer material | |
| CN112210183B (en) | Haloamine antibacterial polystyrene material and preparation method thereof | |
| CN114410500A (en) | High-efficiency polyethylene degrading bacterial strain and application thereof | |
| CN113249276A (en) | Bacillus cereus and application thereof | |
| CN111995823A (en) | Antistatic corrugated board | |
| CN112876805A (en) | Preparation method of resin-based carbon quantum dot water lubricating sealing material | |
| CN110760506B (en) | Phenol-reducing bacterium immobilized spherical particle and preparation method and application thereof | |
| CN118530431B (en) | High-performance polyurethane vibration isolator and preparation method thereof | |
| CN114424774B (en) | Preparation method and application of enteromorpha carbonization and activation preparation functional activated carbon | |
| CN117511017B (en) | High-performance rubber product and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201211 |
|
| WD01 | Invention patent application deemed withdrawn after publication |