CN113088087A - Food-grade antibacterial addition type liquid silicone rubber - Google Patents
Food-grade antibacterial addition type liquid silicone rubber Download PDFInfo
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- CN113088087A CN113088087A CN202110543656.8A CN202110543656A CN113088087A CN 113088087 A CN113088087 A CN 113088087A CN 202110543656 A CN202110543656 A CN 202110543656A CN 113088087 A CN113088087 A CN 113088087A
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- China
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- parts
- component
- silicone rubber
- type liquid
- liquid silicone
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 46
- 239000004944 Liquid Silicone Rubber Substances 0.000 title claims abstract description 30
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 29
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 27
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 24
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 239000002683 reaction inhibitor Substances 0.000 claims abstract description 16
- 239000012779 reinforcing material Substances 0.000 claims abstract description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 12
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 12
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 10
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 10
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 9
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 9
- 239000004945 silicone rubber Substances 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 7
- QYLFHLNFIHBCPR-UHFFFAOYSA-N 1-ethynylcyclohexan-1-ol Chemical compound C#CC1(O)CCCCC1 QYLFHLNFIHBCPR-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004132 cross linking Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 230000001147 anti-toxic effect Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 239000003431 cross linking reagent Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004383 yellowing Methods 0.000 abstract description 3
- 229920001971 elastomer Polymers 0.000 description 6
- 230000003115 biocidal effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical compound [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a food-grade antibacterial addition type liquid silicone rubber which comprises the following components in parts by weight: the catalyst comprises a component A and a component B, wherein the component A and the component B are prepared according to the proportion of 1:1, and the component A comprises 70-100 parts of silicone rubber-based adhesive, 20-30 parts of vinyl polydimethylsiloxane, 10-20 parts of platinum catalyst and 8-12 parts of organic aluminum compound; the component B comprises 12-18 parts of an antibacterial agent, 6-15 parts of a reaction inhibitor, 8-20 parts of hydrogen-containing fluorosilicone oil, 40-70 parts of a reinforcing material and 5-8 parts of nano argil. The addition type liquid silicone rubber has good antibacterial effect, strong antibacterial durability, safety and environmental protection, and can delay yellowing of products in the later period by adding the antibacterial agent; the hydrogen-containing fluorosilicone oil is used as a cross-linking agent in the summary of addition type liquid silicone rubber; compared with the method that the platinum catalyst is poisoned to prevent the silicon rubber from being vulcanized, the method ensures the reaction by adding the organic aluminum compound as the catalyst antitoxic agent.
Description
Technical Field
The invention relates to the technical field of liquid silicone rubber, in particular to food-grade antibacterial addition type liquid silicone rubber.
Background
The addition type liquid silicone rubber is vinyl-containing poly-siloxane as a basic polymer and is a first-choice material of interest in the electronic and electrical industry. The rubber has wide application, such as the industries of aircraft manufacturing, automobiles, warships, medical instruments and the like, and along with the development of the society, the types of rubber products applied to the field of medical health are more and more, so that the antibiosis is necessary, and the rubber needs to be used for antibiosis.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the technical defects and provide a food-grade antibacterial addition type liquid silicone rubber which is prepared from a silicone rubber
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
a food-grade antibacterial addition type liquid silicone rubber comprises the following components in parts by weight: the catalyst comprises a component A and a component B, wherein the component A and the component B are prepared according to the proportion of 1:1, and the component A comprises 70-100 parts of silicone rubber-based adhesive, 20-30 parts of vinyl polydimethylsiloxane, 10-20 parts of platinum catalyst and 8-12 parts of organic aluminum compound; the component B comprises 12-18 parts of an antibacterial agent, 6-15 parts of a reaction inhibitor, 8-20 parts of hydrogen-containing fluorosilicone oil, 40-70 parts of a reinforcing material and 5-8 parts of nano argil.
Further, the antibacterial agent is a silver-based antibacterial agent.
Furthermore, the addition amount of the antibacterial agent accounts for 0.3 to 0.8 percent of the total components
Further, the reaction inhibitor is one or a mixture of more than two of 1-ethynyl-1-cyclohexanol, 2-methyl-3-butyne-alcohol, 3, 5-dimethyl-1-hexyne-3-alcohol or 3-methyl-1-dodecyne-3-alcohol.
Further, the reinforcing material is white carbon black.
Further, adding vinyl polydimethylsiloxane and an organic aluminum compound into the silicone rubber base rubber in proportion, and stirring and mixing uniformly in vacuum to obtain a component A; the antibacterial agent, the reaction inhibitor, the hydrogen-containing fluorosilicone oil, the reinforcing material and the nano argil are stirred and mixed evenly in vacuum to obtain the component B.
Further, uniformly mixing the component A and the component B, performing crosslinking curing, stirring for 0.5-4h in vacuum at room temperature, placing in a mold, and curing to obtain the food-grade antibacterial addition type liquid silicone rubber.
The invention has the beneficial effects that: the addition type liquid silicone rubber has good antibacterial effect, strong antibacterial durability, safety and environmental protection, and can delay yellowing of products in the later period by adding the antibacterial agent; the hydrogen-containing fluorosilicone oil is used as a cross-linking agent in the summary of addition type liquid silicone rubber; compared with the method that the platinum catalyst is poisoned to prevent the silicon rubber from being vulcanized, the method has the advantages that the organic aluminum compound is added as the catalyst antitoxic agent to ensure the reaction; the reinforcing material increases the strength of the silicon rubber and obtains better performance; the reaction inhibitor and the platinum catalyst produce a certain form of complex, so that the storage period and the pot life of the addition type liquid silicone rubber are ensured.
Detailed Description
In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention are clearly and completely described below.
Example one
A food-grade antibacterial addition type liquid silicone rubber comprises the following components in parts by weight: the catalyst comprises a component A and a component B, wherein the component A and the component B are prepared according to the proportion of 1:1, and the component A comprises 70 parts of silicone rubber-based adhesive, 20 parts of vinyl polydimethylsiloxane, 10 parts of platinum catalyst and 8 parts of organic aluminum compound; the component B comprises 12 parts of an antibacterial agent, 6 parts of a reaction inhibitor, 8 parts of hydrogen-containing fluorosilicone oil, 40 parts of a reinforcing material and 5 parts of nano argil; the antibacterial agent is a silver-based antibacterial agent; the addition amount of the antibacterial agent accounts for 0.3 percent of the total components; the reaction inhibitor is 1-ethynyl-1-cyclohexanol; the reinforcing material is white carbon black.
Example two
A food-grade antibacterial addition type liquid silicone rubber comprises the following components in parts by weight: the modified silicon rubber comprises a component A and a component B, wherein the component A and the component B are prepared according to the proportion of 1:1, and the component A comprises 100 parts of silicon rubber-based rubber, 30 parts of vinyl polydimethylsiloxane, 20 parts of platinum catalyst and 12 parts of organic aluminum compound; the component B comprises 18 parts of an antibacterial agent, 15 parts of a reaction inhibitor, 20 parts of hydrogen-containing fluorosilicone oil, 70 parts of a reinforcing material and 8 parts of nano argil; the antibacterial agent is a silver-based antibacterial agent; the addition amount of the antibacterial agent accounts for 0.8 percent of the total components; the reaction inhibitor is a mixture of 1-ethynyl-1-cyclohexanol and 2-methyl-3-butyne-alcohol; the reinforcing material is white carbon black.
EXAMPLE III
A food-grade antibacterial addition type liquid silicone rubber comprises the following components in parts by weight: the composite material comprises a component A and a component B, wherein the component A and the component B are prepared according to the proportion of 1:1, and the component A comprises 75 parts of silicone rubber-based rubber, 25 parts of vinyl polydimethylsiloxane, 12 parts of platinum catalyst and 10 parts of organic aluminum compound; the component B comprises 15 parts of an antibacterial agent, 15 parts of a reaction inhibitor, 15 parts of hydrogen-containing fluorosilicone oil, 70 parts of a reinforcing material and 7 parts of nano argil; the antibacterial agent is a silver-based antibacterial agent; the addition amount of the antibacterial agent accounts for 0.3 to 0.8 percent of the total components; the reaction inhibitor is one or a mixture of more than two of 1-ethynyl-1-cyclohexanol, 2-methyl-3-butyne-alcohol, 3, 5-dimethyl-1-hexyne-3-alcohol or 3-methyl-1-dodecyne-3-alcohol; the reinforcing material is white carbon black.
Adding vinyl polydimethylsiloxane and an organic aluminum compound into the silicone rubber-based adhesive in proportion, and stirring and mixing uniformly in vacuum to obtain a component A; uniformly stirring and mixing the antibacterial agent, the reaction inhibitor, the hydrogen-containing fluorosilicone oil, the reinforcing material and the nano argil in vacuum to obtain a component B; and uniformly mixing the component A and the component B, performing crosslinking curing, stirring for 0.5-4h in vacuum at room temperature, placing in a mold, and curing to obtain the food-grade antibacterial addition type liquid silicone rubber.
The addition type liquid silicone rubber has good antibacterial effect, strong antibacterial durability, safety and environmental protection, and can delay yellowing of products in the later period by adding the antibacterial agent; the hydrogen-containing fluorosilicone oil is used as a cross-linking agent in the summary of addition type liquid silicone rubber; compared with the method that the platinum catalyst is poisoned to prevent the silicon rubber from being vulcanized, the method has the advantages that the organic aluminum compound is added as the catalyst antitoxic agent to ensure the reaction; the reinforcing material increases the strength of the silicon rubber and obtains better performance; the reaction inhibitor and the platinum catalyst produce a certain form of complex, so that the storage period and the pot life of the addition type liquid silicone rubber are ensured. The material has wide application, and can be used in the fields of new energy, war industry, medical treatment, aviation, ships, electronics, automobiles, instruments, power supplies, high-speed rails, communication and other industries.
The antibacterial performance of the product is researched through an antibacterial experiment. The experimental procedure was as follows: shearing addition type liquid silicone rubber with the size of 50mm x 50mm, washing with sterile water, placing in a culture medium, setting a blank group and a control group, sequentially dripping prepared bacterial liquid into the control group, placing in a constant-temperature incubator at 37 ℃, culturing for 24h, and recording data every 48 h. And after recording, washing the sample, detecting the residual bacteria content in the sample, and determining the antibacterial performance of the sample.
Experimental data show that the product has high antibacterial performance.
The present invention and the embodiments thereof have been described above, but the description is not limited to the embodiments, but only one of the embodiments of the present invention, and the actual embodiments are not limited thereto. In conclusion, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The food-grade antibacterial addition type liquid silicone rubber is characterized by comprising the following components in parts by weight: comprises a component A and a component B, wherein the component A and the component B are configured according to the proportion of 1:1,
the component A comprises 70-100 parts of silicone rubber-based adhesive, 20-30 parts of vinyl polydimethylsiloxane, 10-20 parts of platinum catalyst and 8-12 parts of organic aluminum compound;
the component B comprises 12-18 parts of an antibacterial agent, 6-15 parts of a reaction inhibitor, 8-20 parts of hydrogen-containing fluorosilicone oil, 40-70 parts of a reinforcing material and 5-8 parts of nano argil.
2. The food-grade antibacterial addition type liquid silicone rubber according to claim 1, wherein: the antibacterial agent is a silver-based antibacterial agent.
3. The food-grade antibacterial addition type liquid silicone rubber according to claim 1, wherein: the addition amount of the antibacterial agent accounts for 0.3-0.8% of the total components.
4. The food-grade antibacterial addition type liquid silicone rubber according to claim 1, wherein: the reaction inhibitor is one or a mixture of more than two of 1-ethynyl-1-cyclohexanol, 2-methyl-3-butyne-alcohol, 3, 5-dimethyl-1-hexyne-3-alcohol or 3-methyl-1-dodecyne-3-alcohol.
5. The food-grade antibacterial addition type liquid silicone rubber according to claim 1, wherein: the reinforcing material is white carbon black.
6. The food-grade antibacterial addition type liquid silicone rubber according to claim 1, wherein: adding vinyl polydimethylsiloxane, a platinum catalyst and an organic aluminum compound into the silicone rubber-based adhesive in proportion, and stirring and mixing uniformly in vacuum to obtain a component A;
the antibacterial agent, the reaction inhibitor, the hydrogen-containing fluorosilicone oil, the reinforcing material and the nano argil are stirred and mixed evenly in vacuum to obtain the component B.
7. The food-grade antibacterial addition type liquid silicone rubber according to claim 6, wherein: and uniformly mixing the component A and the component B, performing crosslinking curing, stirring for 0.5-4h in vacuum at room temperature, placing in a mold, and curing to obtain the food-grade antibacterial addition type liquid silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110543656.8A CN113088087A (en) | 2021-05-19 | 2021-05-19 | Food-grade antibacterial addition type liquid silicone rubber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110543656.8A CN113088087A (en) | 2021-05-19 | 2021-05-19 | Food-grade antibacterial addition type liquid silicone rubber |
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| CN113088087A true CN113088087A (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110543656.8A Pending CN113088087A (en) | 2021-05-19 | 2021-05-19 | Food-grade antibacterial addition type liquid silicone rubber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114015239A (en) * | 2021-12-24 | 2022-02-08 | 深圳市源锋兴业科技有限公司 | Formula and preparation method of infant silica gel |
| CN116462976A (en) * | 2023-06-09 | 2023-07-21 | 广州市瑞合新材料科技有限公司 | Food-grade antibacterial silicone rubber and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5416147A (en) * | 1992-12-14 | 1995-05-16 | Shin-Etsu Chemical Co., Ltd. | Hydrosilylative composition and process of hydrosilylation reaction |
| CN101824224A (en) * | 2010-04-15 | 2010-09-08 | 同济大学 | Preparation method of anti-poisoning silicon rubber |
| CN105199106A (en) * | 2015-09-24 | 2015-12-30 | 四川理工学院 | Preparation method of addition type liquid fluorinated silicone rubber |
| CN108424654A (en) * | 2018-03-14 | 2018-08-21 | 广州市瑞合新材料科技有限公司 | A kind of food-level antibacterial add-on type liquid silicon rubber and preparation method thereof, silastic product |
-
2021
- 2021-05-19 CN CN202110543656.8A patent/CN113088087A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5416147A (en) * | 1992-12-14 | 1995-05-16 | Shin-Etsu Chemical Co., Ltd. | Hydrosilylative composition and process of hydrosilylation reaction |
| CN101824224A (en) * | 2010-04-15 | 2010-09-08 | 同济大学 | Preparation method of anti-poisoning silicon rubber |
| CN105199106A (en) * | 2015-09-24 | 2015-12-30 | 四川理工学院 | Preparation method of addition type liquid fluorinated silicone rubber |
| CN108424654A (en) * | 2018-03-14 | 2018-08-21 | 广州市瑞合新材料科技有限公司 | A kind of food-level antibacterial add-on type liquid silicon rubber and preparation method thereof, silastic product |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114015239A (en) * | 2021-12-24 | 2022-02-08 | 深圳市源锋兴业科技有限公司 | Formula and preparation method of infant silica gel |
| CN116462976A (en) * | 2023-06-09 | 2023-07-21 | 广州市瑞合新材料科技有限公司 | Food-grade antibacterial silicone rubber and preparation method thereof |
| CN116462976B (en) * | 2023-06-09 | 2023-08-15 | 广州市瑞合新材料科技有限公司 | Food-grade antibacterial silicone rubber and preparation method thereof |
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Application publication date: 20210709 |