CN111995872A - Magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material - Google Patents
Magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material Download PDFInfo
- Publication number
- CN111995872A CN111995872A CN202010926342.1A CN202010926342A CN111995872A CN 111995872 A CN111995872 A CN 111995872A CN 202010926342 A CN202010926342 A CN 202010926342A CN 111995872 A CN111995872 A CN 111995872A
- Authority
- CN
- China
- Prior art keywords
- parts
- filler
- silicone rubber
- sealing material
- tear
- 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
- 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
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material, and relates to the technical field of sealing rubber. The magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material comprises the following components in parts by weight: 80-100 parts of polymethyl vinyl siloxane, 3-5 parts of methyl vinyl silicone rubber, 8-24 parts of high-reinforcement filler, 24-70 parts of organic fireproof filler and 1-2 parts of vulcanizing agent; 20-50 parts of inorganic thermal insulation mortar, 3-5 parts of vinyl silicone oil and 1-3 parts of a cross-linking agent, wherein the organic fireproof filler is prepared by adding a fireproof agent and a filler into organic synthetic resin according to a mass ratio of 0.5-1: 1-3: 1, and the inorganic thermal insulation mortar is prepared by mixing light thermal insulation particles, a cementing material, an anti-cracking additive and a filler. By adding the high-reinforcement filler, the vinyl silicone oil and the cross-linking agent, the tear resistance of the silicone rubber is greatly improved when the sealing material is used, and the use safety of the silicone rubber sealing material is improved.
Description
Technical Field
The invention relates to the technical field of sealing rubber, in particular to a magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material.
Background
The silicon rubber is that the main chain is composed of silicon and oxygen atoms in an alternating way, the silicon atoms are usually connected with rubber with two organic groups, the common silicon rubber is mainly composed of silicon-oxygen chain links containing methyl and a small amount of vinyl, the introduction of phenyl can improve the high and low temperature resistance of the silicon rubber, the introduction of trifluoropropyl and cyano can improve the temperature resistance and oil resistance of the silicon rubber, the low temperature resistance of the silicon rubber is good, the silicon rubber can still work at the temperature of-55 ℃, the temperature can reach-73 ℃ after the introduction of the phenyl, the heat resistance of the silicon rubber is also outstanding, the silicon rubber can work for a long time at 180 ℃, can bear elasticity for a plurality of weeks or more even at slightly higher than 200 ℃, can instantaneously resist the high temperature of more than 300 ℃, has good air permeability, has the highest oxygen transmission rate in synthetic polymers, has the outstanding characteristics of physiological inertia and no coagulation, and is widely applied in the medical field.
However, when the current magnesium borate whisker reinforced silicone rubber sealing material is used, the sealing material may be damaged due to low tear strength, so that the safety is reduced, and under the environment of high temperature or low temperature, the sealing material may cause the structural strength inside the material to be reduced, so that the service life of the sealing material may be reduced, and in a more serious condition, the potential safety hazard may be caused.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material, which solves the problems that the sealing material is damaged due to low tear strength during stretching and the internal structural strength is easy to reduce under high-temperature and low-temperature environments.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material comprises the following components in parts by weight: 80-100 parts of polymethyl vinyl siloxane, 3-5 parts of methyl vinyl silicone rubber, 8-24 parts of high-reinforcement filler, 24-70 parts of organic fireproof filler and 1-2 parts of vulcanizing agent; 20-50 parts of inorganic thermal mortar, 3-5 parts of vinyl silicone oil and 1-3 parts of cross-linking agent.
Preferably, the organic fireproof filler is prepared from organic synthetic resin, a fireproof agent and a filler according to a mass ratio of 0.5-1: 1-3: 1.
Preferably, the inorganic thermal mortar is prepared by mixing light thermal particles, a cementing material, an anti-cracking additive and a filler.
Preferably, the high-reinforcing filler is a white carbon black filler.
Preferably, the material of the cross-linking agent is ferric oxide peroxide.
A magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material comprises the following preparation methods:
s1, weighing and placing polymethylvinylsiloxane, methylvinylsiloxane rubber, high-reinforcement filler, organic fireproof filler, vulcanizing agent, inorganic thermal insulation mortar, vinyl silicone oil and crosslinking agent;
s2, pouring the polymethylvinylsiloxane, the methylvinylsiloxane rubber, the high-reinforcement filler, the vinyl silicone oil, the cross-linking agent and the vulcanizing agent into an internal mixer according to a proportion, and mixing for 50-80min at the temperature of 110-150 ℃ to obtain a rubber compound;
s3, pouring the organic fireproof filler and the inorganic heat-preservation mortar into a mixing roll for mixing processing, controlling the temperature to be 70-110 ℃, and mixing for 40-60 min;
and S4, after the mixing is finished, cooling for 24-48h to obtain the silicone rubber composite material.
(III) advantageous effects
The invention provides a magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material. The method has the following beneficial effects:
1. the silicone rubber sealing material prepared by the processing technology is added with the high-reinforcement filler, the vinyl silicone oil and the cross-linking agent, so that the tearing resistance of the silicone rubber is greatly improved when the sealing material is used, and the use safety of the silicone rubber sealing material is improved.
2. By adding the organic fireproof filler during preparation, the fireproof capacity of the silicone rubber sealing material in a high-temperature environment can be further improved, and the dangers that the structural strength is reduced and potential safety hazards are caused by the sealing material due to high temperature are effectively solved.
3. By arranging the inorganic heat-insulating mortar, the structural strength of the silicone rubber sealing material in a low-temperature environment can be more stable.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
The first embodiment is as follows:
the embodiment of the invention provides a magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material, which comprises the following components in parts by weight: 80 parts of polymethyl vinyl siloxane, 3 parts of methyl vinyl silicone rubber, 8 parts of high-reinforcement filler, 24 parts of organic fireproof filler and 1 part of vulcanizing agent; 20 parts of inorganic thermal mortar, 3 parts of vinyl silicone oil and 1 part of cross-linking agent.
The organic fireproof filler is prepared from organic synthetic resin, a fireproof agent and the filler according to the mass ratio of 0.5:1: 1.
The inorganic heat-insulating mortar is prepared by mixing light heat-insulating particles, a cementing material, an anti-cracking additive and a filler.
Wherein the high-reinforcement filler is white carbon black filler.
Wherein the material of the cross-linking agent is ferric oxide peroxide.
A magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material comprises the following preparation methods:
s1, weighing and placing polymethylvinylsiloxane, methylvinylsiloxane rubber, high-reinforcement filler, organic fireproof filler, vulcanizing agent, inorganic thermal insulation mortar, vinyl silicone oil and crosslinking agent;
s2, pouring the polymethylvinylsiloxane, the methylvinylsiloxane rubber, the high-reinforcement filler, the vinyl silicone oil, the cross-linking agent and the vulcanizing agent into an internal mixer according to a proportion, and mixing for 50-80min at the temperature of 110-150 ℃ to obtain a rubber compound;
s3, pouring the organic fireproof filler and the inorganic heat-preservation mortar into a mixing roll for mixing processing, controlling the temperature to be 70-110 ℃, and mixing for 40-60 min;
and S4, after the mixing is finished, cooling for 24-48h to obtain the silicone rubber composite material.
Example two:
the material comprises the following components in parts by weight: 100 parts of polymethyl vinyl siloxane, 5 parts of methyl vinyl silicone rubber, 24 parts of high-reinforcement filler, 70 parts of organic fireproof filler and 2 parts of vulcanizing agent; 50 parts of inorganic thermal mortar, 5 parts of vinyl silicone oil and 3 parts of cross-linking agent.
The organic fireproof filler is prepared from organic synthetic resin, a fireproof agent and the filler according to the mass ratio of 1:3: 1.
The inorganic heat-insulating mortar is prepared by mixing light heat-insulating particles, a cementing material, an anti-cracking additive and a filler.
Wherein the high-reinforcement filler is white carbon black filler.
Wherein the material of the cross-linking agent is ferric oxide peroxide.
A magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material comprises the following preparation methods:
s1, weighing and placing polymethylvinylsiloxane, methylvinylsiloxane rubber, high-reinforcement filler, organic fireproof filler, vulcanizing agent, inorganic thermal insulation mortar, vinyl silicone oil and crosslinking agent;
s2, pouring the polymethylvinylsiloxane, the methylvinylsiloxane rubber, the high-reinforcement filler, the vinyl silicone oil, the cross-linking agent and the vulcanizing agent into an internal mixer according to a proportion, and mixing for 50-80min at the temperature of 110-150 ℃ to obtain a rubber compound;
s3, pouring the organic fireproof filler and the inorganic heat-preservation mortar into a mixing roll for mixing processing, controlling the temperature to be 70-110 ℃, and mixing for 40-60 min;
and S4, after the mixing is finished, cooling for 24-48h to obtain the silicone rubber composite material.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material is characterized in that: the material comprises the following components in parts by weight: 80-100 parts of polymethyl vinyl siloxane, 3-5 parts of methyl vinyl silicone rubber, 8-24 parts of high-reinforcement filler, 24-70 parts of organic fireproof filler and 1-2 parts of vulcanizing agent; 20-50 parts of inorganic thermal mortar, 3-5 parts of vinyl silicone oil and 1-3 parts of cross-linking agent.
2. The magnesium borate whisker reinforced high tear-resistant silicone rubber sealing material of claim 1, wherein: the organic fireproof filler is prepared from organic synthetic resin, a fireproof agent and a filler according to a mass ratio of 0.5-1: 1-3: 1.
3. The magnesium borate whisker reinforced high tear-resistant silicone rubber sealing material of claim 1, wherein: the inorganic thermal insulation mortar is prepared by mixing light thermal insulation particles, a cementing material, an anti-cracking additive and a filler.
4. The magnesium borate whisker reinforced high tear-resistant silicone rubber sealing material of claim 1, wherein: the high-reinforcement filler is a white carbon black filler.
5. The magnesium borate whisker reinforced high tear-resistant silicone rubber sealing material of claim 1, wherein: the material of the cross-linking agent is ferric oxide peroxide.
6. The magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material is characterized in that: the preparation method comprises the following steps:
s1, weighing and placing polymethylvinylsiloxane, methylvinylsiloxane rubber, high-reinforcement filler, organic fireproof filler, vulcanizing agent, inorganic thermal insulation mortar, vinyl silicone oil and crosslinking agent;
s2, pouring the polymethylvinylsiloxane, the methylvinylsiloxane rubber, the high-reinforcement filler, the vinyl silicone oil, the cross-linking agent and the vulcanizing agent into an internal mixer according to a proportion, and mixing for 50-80min at the temperature of 110-150 ℃ to obtain a rubber compound;
s3, pouring the organic fireproof filler and the inorganic heat-preservation mortar into a mixing roll for mixing processing, controlling the temperature to be 70-110 ℃, and mixing for 40-60 min;
and S4, after the mixing is finished, cooling for 24-48h to obtain the silicone rubber composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926342.1A CN111995872A (en) | 2020-09-04 | 2020-09-04 | Magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926342.1A CN111995872A (en) | 2020-09-04 | 2020-09-04 | Magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111995872A true CN111995872A (en) | 2020-11-27 |
Family
ID=73468822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010926342.1A Pending CN111995872A (en) | 2020-09-04 | 2020-09-04 | Magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111995872A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032841A (en) * | 2006-03-06 | 2007-09-12 | 兰州海锋建材科技有限公司 | Single unit heat-insulating dry mortar and the producing method |
| CN105348815A (en) * | 2015-12-08 | 2016-02-24 | 中国科学院青海盐湖研究所 | Whisker/silicone rubber composite and preparation method thereof |
| CN105368379A (en) * | 2015-12-18 | 2016-03-02 | 广州市白云化工实业有限公司 | Silicone sealant with ultra-high strength and preparation method of silicone sealant |
| CN105860569A (en) * | 2016-06-01 | 2016-08-17 | 巢湖市兰天大诚门窗幕墙有限公司 | Wood-clad aluminum door and window fireproof filler and preparation method thereof |
| CN106497079A (en) * | 2016-12-01 | 2017-03-15 | 江苏炎石新材料有限公司 | A kind of high heat conduction organosilicon rubber |
| CN107418217A (en) * | 2017-08-30 | 2017-12-01 | 长沙科成高分子材料有限公司 | A kind of fire-retardant tear-proof silicon rubber and preparation method thereof |
| CN108530898A (en) * | 2018-03-09 | 2018-09-14 | 中国电子科技集团公司第三十三研究所 | A kind of tear-proof high-flexibility conductive rubber and preparation method thereof |
-
2020
- 2020-09-04 CN CN202010926342.1A patent/CN111995872A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032841A (en) * | 2006-03-06 | 2007-09-12 | 兰州海锋建材科技有限公司 | Single unit heat-insulating dry mortar and the producing method |
| CN105348815A (en) * | 2015-12-08 | 2016-02-24 | 中国科学院青海盐湖研究所 | Whisker/silicone rubber composite and preparation method thereof |
| CN105368379A (en) * | 2015-12-18 | 2016-03-02 | 广州市白云化工实业有限公司 | Silicone sealant with ultra-high strength and preparation method of silicone sealant |
| CN105860569A (en) * | 2016-06-01 | 2016-08-17 | 巢湖市兰天大诚门窗幕墙有限公司 | Wood-clad aluminum door and window fireproof filler and preparation method thereof |
| CN106497079A (en) * | 2016-12-01 | 2017-03-15 | 江苏炎石新材料有限公司 | A kind of high heat conduction organosilicon rubber |
| CN107418217A (en) * | 2017-08-30 | 2017-12-01 | 长沙科成高分子材料有限公司 | A kind of fire-retardant tear-proof silicon rubber and preparation method thereof |
| CN108530898A (en) * | 2018-03-09 | 2018-09-14 | 中国电子科技集团公司第三十三研究所 | A kind of tear-proof high-flexibility conductive rubber and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张小宸: "硼酸镁晶须/有机硅橡胶功能复合材料的制备和性能研究", 《盐湖研究》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107189236B (en) | Sulfur-vulcanized ethylene propylene diene monomer composition with heat aging resistance and low pressure change, preparation method, application and application product thereof | |
| CN106317901B (en) | A kind of modified Nano compound silica gel sealing ring and its preparation | |
| CN105038088B (en) | A kind of Oil-resistant cold-resistant high-temperature resistant electric automobile charging pile elastomer cable material and preparation method thereof | |
| CN111253687B (en) | Blended rubber of silicon rubber and ethylene propylene diene monomer and preparation method thereof | |
| CN112321952A (en) | Ethylene propylene diene monomer composite rubber material and preparation method thereof | |
| CN111995872A (en) | Magnesium borate whisker reinforced high-tear-resistance silicone rubber sealing material | |
| CN106751033A (en) | A kind of Halogen Free Flame Retardant EPDM cold shrink tube for being easy to expansion and preparation method thereof | |
| CN109851976A (en) | Modified TPE fire-resistant cable material of a kind of Halogen and preparation method thereof | |
| CN111647223A (en) | Wire and cable sheath material for high-speed railway and preparation method thereof | |
| CN108976495A (en) | Heat-resistant antifriction native rubber composite material and preparation method thereof | |
| CN115558239A (en) | Hard material of insulator, preparation method and composite series insulator | |
| CN114231040A (en) | Flame-retardant silicone rubber self-adhesive tape and preparation method thereof | |
| CN112011183A (en) | Self-heating silicone rubber composite material and application thereof in insulator | |
| CN109851974B (en) | Strong acid resistant modified chlorosulfonated polyethylene rubber | |
| CN116948276B (en) | Silicone rubber sealing ring and preparation method thereof | |
| CN112592591A (en) | Oil-resistant flame-retardant silicone rubber material | |
| CN112519286A (en) | Composition for tire curing bladder and tire curing bladder | |
| CN113105683A (en) | Oil-resistant super-soft polyethylene material and preparation method thereof | |
| CN112011133A (en) | High-life high-elasticity salt-fog-resistant mildew-resistant chemically-crosslinked chlorinated polyethylene sheath material and preparation method thereof | |
| CN114773862B (en) | Polyphosphazene system-based heat-insulating material, preparation method and application | |
| CN116515197B (en) | Insulating cable sheath material for high-voltage cable and preparation method thereof | |
| CN107936329A (en) | A kind of preparation method of heat conduction foaming vulcanization compounded nitrile rubber sealing strip | |
| CN116178933B (en) | High-flame-retardance high-wear-resistance cable material and cable | |
| CN108976496A (en) | Flame-proof heat-resistant native rubber composite material and preparation method thereof | |
| CN115260584B (en) | Environment-friendly stabilizer for new energy charging cable |
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: 20201127 |
|
| WD01 | Invention patent application deemed withdrawn after publication |