CN111978733A - Process method of high-wear-resistance silica gel product - Google Patents
Process method of high-wear-resistance silica gel product Download PDFInfo
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- CN111978733A CN111978733A CN202010929894.8A CN202010929894A CN111978733A CN 111978733 A CN111978733 A CN 111978733A CN 202010929894 A CN202010929894 A CN 202010929894A CN 111978733 A CN111978733 A CN 111978733A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 239000000741 silica gel Substances 0.000 title claims abstract description 71
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008569 process Effects 0.000 title claims abstract description 15
- 229920001971 elastomer Polymers 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 33
- -1 poly tetrachloroethylene Polymers 0.000 claims abstract description 18
- 239000006229 carbon black Substances 0.000 claims abstract description 15
- 238000005299 abrasion Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 239000000839 emulsion Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 28
- 229920002379 silicone rubber Polymers 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 12
- 239000004945 silicone rubber Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000004513 sizing Methods 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 6
- 239000011256 inorganic filler Substances 0.000 abstract description 5
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 5
- 150000001451 organic peroxides Chemical class 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 231100000252 nontoxic Toxicity 0.000 abstract description 4
- 230000003000 nontoxic effect Effects 0.000 abstract description 4
- 230000009967 tasteless effect Effects 0.000 abstract description 4
- 230000009974 thixotropic effect Effects 0.000 abstract description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052801 chlorine Inorganic materials 0.000 abstract description 3
- 239000000460 chlorine Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000499 gel Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 5
- 239000007822 coupling agent Substances 0.000 description 4
- 229920002545 silicone oil Polymers 0.000 description 4
- 229920002050 silicone resin Polymers 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- 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)
Abstract
The invention discloses a process method of a high-wear-resistance silica gel product, which is characterized in that the process method comprises 200 parts of crude polyorganosiloxane gel, 20-200 parts of inorganic filler with the specific surface area of 1-50 m < 2 >/g, 120 parts of chlorine resin powder with the particle diameter of 0.05-120 mm and 0.1-12 parts of organic peroxide. The method has the beneficial effects that the inorganic filler of the process method of the high-abrasion-resistance silica gel product has the effects that the silica gel has oil resistance and sealing property, and can provide certain abrasion resistance when the silica gel contacts with a sliding surface; white carbon black water paste containing emulsion poly tetrachloroethylene is added into a silica gel raw material, the white carbon black water paste is white fluffy powder, is porous, nontoxic, tasteless, pollution-free and high-temperature resistant, and has chemical inertness and special thixotropic property, so that the tensile strength, the tear resistance and the wear resistance of a rubber product are obviously improved.
Description
Technical Field
The invention relates to the technical field of silica gel application, in particular to a process method of a high-wear-resistance silica gel product.
Background
The silica gel has the alias: the silicic acid gel is a high-activity adsorption material and belongs to an amorphous substance. The high-temperature-resistant and corrosion-resistant artificial board has the characteristics of high temperature resistance, corrosion resistance, strong tearing resistance, fine simulation and the like. The silica gel mold is a special mold for manufacturing artware, and the raw materials of the rubber tool can be divided into common silica gel and gas elephant silica gel according to the performance.
Products made of silica gel are more and more distributed in a plurality of fields such as articles for daily use, equipment accessories and the like in the market, and the traditional silica gel product has no wear resistance after being used for a period of time due to the problems of environmental pollution, high energy consumption and the like, so that the silica gel product suffers from great development resistance in the domestic market.
Disclosure of Invention
Technical problem to be solved
Aiming at the existing problems, the invention provides a process method of a high-abrasion-resistance silica gel product, so as to solve the problems.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the technical problem to be solved by the invention is as follows: the process method of the high-wear-resistance silica gel product is provided, and the silica gel product has better supporting force, is convenient for a user to use and has better touch feeling during use.
In order to solve the technical problems, the invention adopts the technical scheme that:
a process method of a high abrasion silica gel product, the polyorganosiloxane crude rubber 120-:
the preparation method comprises the following steps:
the method comprises the following steps: preparing the raw materials with sufficient weight, and mixing to prepare a silica gel raw material;
step two: adding a sizing material of polytetravinyl chloride into the silica gel raw material in order to improve the tensile strength and the tear strength of the silica gel product;
step three: sequentially adding silicon resin, silicon oil and poly tetrachloroethylene into a silica gel raw material, mixing, and adding the silicon rubber for fusion to form a new rubber material;
step four: adding a silicone rubber material of polytetravinyl chloride into low-hardness rubber;
step five: adding white carbon black water paste containing emulsion poly tetrachloroethylene into a silica gel raw material;
step six: VMC is added to the silica gel feedstock to improve the abrasion resistance of the silicone rubber.
Further, the raw materials are weighed and stirred for reaction for 50 minutes at 100 ℃, when the temperature is raised to 120 ℃, the stirring reaction is continued for 1.5 hours, the reaction is kept for 30 minutes, and the residual catalyst is decomposed to obtain colorless and transparent silica gel viscous liquid.
Furthermore, the friction performance is subjected to back-and-forth friction on the silica gel product coating obtained by the reaction through the eraser, the friction force of the eraser is controlled through the mechanical arm, the friction force of each time is kept the same, the accuracy of experimental data is ensured, and the experimenter records the back-and-forth times one time and records the back-and-forth times until the coating is completely ground.
Further, the silicone rubber material is placed at a temperature of 90-180 ℃ for several seconds and then is subjected to compression molding.
The invention has the beneficial effects that: the inorganic filler of the process method of the high-abrasion silica gel product has the effects that the silica gel has oil resistance and sealing property, and can provide certain abrasion resistance when the silica gel is kept in sliding surface contact; white carbon black water paste containing emulsion poly tetrachloroethylene is added into a silica gel raw material, the white carbon black water paste is white fluffy powder, is porous, nontoxic, tasteless, pollution-free and high-temperature resistant, and has chemical inertness and special thixotropic property, so that the tensile strength, the tear resistance and the wear resistance of a rubber product are obviously improved.
Drawings
FIG. 1 is a flow chart of the invention of a micro-foaming injection molding device.
Detailed Description
In order to make the technical means, innovative features, objects, and effects of the invention apparent from the following detailed description, it is to be understood that the embodiments described are only a few embodiments of the invention, rather than 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.
In the description of the present invention, it should be noted that the terms "front", "back", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the invention. Furthermore, "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "communicated," "connected," and the like are used in a broad sense and are defined as, for example, being fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or connected through an intermediate medium, and communicating between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those skilled in the art
The invention is described in further detail below with reference to the accompanying drawings.
Example one
A process method of a high abrasion-resistant silica gel product, wherein the preparation method comprises the following steps of 120 parts of polyorganosiloxane raw rubber with a polymerization degree of more than 1000, 12 parts of reinforcing white carbon black, 30 parts of inorganic filler with a specific surface area of 1-50 m 2/g, 120 parts of chlorine resin powder with a particle size of 0.05-120 mm and 0.1-12 parts of organic peroxide:
the method comprises the following steps: preparing the raw materials with sufficient weight, mixing to prepare a silica gel raw material, sequentially adding the raw materials into a reaction container, stirring by a stirring rod, fully mixing, and heating the reaction container to accelerate the reaction;
step two: in order to improve the tensile strength and the tearing strength of the silica gel product, a sizing material of polytetrachloroethylene is added into a silica gel raw material, the polytetrachloroethylene is an organic solvent and is added into the silica gel raw material, and is easily dissolved in the solvent of the silica gel raw material in the reaction mixing process, the polytetrachloroethylene has the characteristics of no peculiar smell and no deformation, and the tensile strength and the tearing strength of the silica gel product are improved;
step three: adding silicone resin, silicone oil and poly tetrachloroethylene into the finished rubber material in sequence, mixing, adding silicone rubber for fusion to form a new rubber material, adding silicone resin into the new rubber material, so that the rubber material has the dual characteristics of organic resin and inorganic material and has good functions of temperature resistance, heat resistance and moisture resistance, and adding silicone oil into the reaction, so that the new rubber material has electrical insulation, hydrophobicity and smaller surface tension, and the overall technological performance of the new rubber material is improved;
step four: in the low-hardness rubber, the silicone rubber material of the polytetrachloroethylene is added, and the generated bubbles are less during the hot vulcanization in the preparation process, so that the generation of silica gel bubbles is reduced during the hot vulcanization;
step five: white carbon black water paste containing emulsion poly tetrachloroethylene is added into a silica gel raw material, the white carbon black water paste is white fluffy powder, is porous, non-toxic, tasteless, pollution-free and high-temperature resistant, and simultaneously has chemical inertness and special thixotropic property, so that the tensile strength, tear resistance and wear resistance of a rubber product are obviously improved, and the strength of the rubber product is improved by tens of times.
Step six: VMC is added into the silica gel raw material to improve the wear resistance, raw rubber with the VMC amount of 8 percent is taken as base rubber, a coupling agent KH560 is added into the preparation agent, and the coupling agent is added to improve the compatibility between the silver powder and the silicon rubber.
The raw materials are weighed and stirred for reaction for 50 minutes at the temperature of 100 ℃, the reaction is continuously stirred for 1.5 hours when the temperature is raised to 120 ℃, the reaction is kept for 30 minutes in the state, and the residual catalyst is decomposed to obtain colorless and transparent silica gel viscous liquid.
The friction performance is subjected to back-and-forth friction on the silica gel product coating obtained by reaction through the eraser, the friction force of the eraser is controlled through the mechanical arm, the friction force of each time is kept the same, the accuracy of experimental data is ensured, and experimenters remember the number of back-and-forth times one by one until the coating is completely ground.
The silicone rubber material is placed at a temperature of 90-180 ℃ for a few seconds and then is pressed and molded.
Example two
A process method of a high abrasion-resistant silica gel product, 100 parts of polyorganosiloxane raw rubber with a polymerization degree of more than 1000, 10 parts of reinforcing white carbon black, 30 parts of inorganic filler with a specific surface area of 1-50 m 2/g, 100 parts of chlorine resin powder with a particle size of 0.05-120 mm and 0.1-12 parts of organic peroxide, comprises the following steps:
the method comprises the following steps: preparing the raw materials with sufficient weight, mixing to prepare a silica gel raw material, sequentially adding the raw materials into a reaction container, stirring by a stirring rod, fully mixing, and heating the reaction container to accelerate the reaction;
step two: in order to improve the tensile strength and the tearing strength of the silica gel product, a sizing material of polytetrachloroethylene is added into a silica gel raw material, the polytetrachloroethylene is an organic solvent and is added into the silica gel raw material, and is easily dissolved in the solvent of the silica gel raw material in the reaction mixing process, the polytetrachloroethylene has the characteristics of no peculiar smell and no deformation, and the tensile strength and the tearing strength of the silica gel product are improved;
step three: adding silicone resin, silicone oil and poly tetrachloroethylene into the finished rubber material in sequence, mixing, adding silicone rubber for fusion to form a new rubber material, adding silicone resin into the new rubber material, so that the rubber material has the dual characteristics of organic resin and inorganic material and has good functions of temperature resistance, heat resistance and moisture resistance, and adding silicone oil into the reaction, so that the new rubber material has electrical insulation, hydrophobicity and smaller surface tension, and the overall technological performance of the new rubber material is improved;
step four: in the low-hardness rubber, the silicone rubber material of the polytetrachloroethylene is added, and the generated bubbles are less during the hot vulcanization in the preparation process, so that the generation of silica gel bubbles is reduced during the hot vulcanization;
step five: white carbon black water paste containing emulsion poly tetrachloroethylene is added into a silica gel raw material, the white carbon black water paste is white fluffy powder, is porous, non-toxic, tasteless, pollution-free and high-temperature resistant, and simultaneously has chemical inertness and special thixotropic property, so that the tensile strength, tear resistance and wear resistance of a rubber product are obviously improved, and the strength of the rubber product is improved by tens of times.
Step six: VMC is added into the silica gel raw material to improve the wear resistance, raw rubber with the VMC amount of 8 percent is taken as base rubber, a coupling agent KH560 is added into the preparation agent, and the coupling agent is added to improve the compatibility between the silver powder and the silicon rubber.
The raw materials are weighed and stirred for reaction for 45 minutes at the temperature of 100 ℃, the reaction is continuously stirred for 1.5 hours when the temperature is raised to 120 ℃, the reaction is kept for 20 minutes in the state, and the residual catalyst is decomposed to obtain colorless and transparent silica gel viscous liquid.
The friction performance is subjected to back-and-forth friction on the silica gel product coating obtained by reaction through the eraser, the friction force of the eraser is controlled through the mechanical arm, the friction force of each time is kept the same, the accuracy of experimental data is ensured, and experimenters remember the number of back-and-forth times one by one until the coating is completely ground.
The silicone rubber material is placed at a temperature of 90-180 ℃ for a few seconds and then is pressed and molded.
In conclusion, the raw polyorganosiloxane rubber used in the composition of the invention is a common silica gel, but the polymerization degree of the silica gel used in the invention is required to be more than 1000 so as to ensure relatively good physical and mechanical properties; the white carbon black is gas-phase white carbon black when being selected, and the specific surface area of the white carbon black is between 110 and 340 meters; the filling agent is quartz powder of SiO 2 in a general formula, fused silica obtained by melting the quartz powder, silicate oxide of diatomite and the like, and the filling agent has inactive chemical properties and influences the sizing material of silica gel; the organic peroxide is selected from the bis-ethane used for vulcanizing the silicon rubber, the organic peroxide is difficult to vulcanize when the dosage is too small in the reaction process, and the physical and mechanical properties of the silicon rubber are reduced when the dosage is too large.
The foregoing shows and describes the general principles and features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A process method of a high abrasion silica gel product, the polyorganosiloxane crude rubber 120-: the preparation method comprises the following steps:
the method comprises the following steps: preparing the raw materials with sufficient weight, and mixing to prepare a silica gel raw material;
step two: adding a sizing material of polytetravinyl chloride into the silica gel raw material in order to improve the tensile strength and the tear strength of the silica gel product;
step three: sequentially adding silicon resin, silicon oil and poly tetrachloroethylene into a silica gel raw material, mixing, and adding the silicon rubber for fusion to form a new rubber material;
step four: adding a silicone rubber material of polytetravinyl chloride into low-hardness rubber;
step five: adding white carbon black water paste containing emulsion poly tetrachloroethylene into a silica gel raw material;
step six: VMC is added to the silica gel feedstock to improve the abrasion resistance of the silicone rubber.
2. The process for preparing high abrasion silica gel product according to claim 1, wherein: the raw materials are weighed and stirred for reaction for 50 minutes at the temperature of 100 ℃, the reaction is continuously stirred for reaction for 1.5 hours when the temperature is raised to 120 ℃, the reaction is kept for 30 minutes in the state, and the residual catalyst is decomposed to obtain colorless and transparent silica gel viscous liquid.
3. The process for preparing high abrasion silica gel product according to claim 1, wherein: the friction performance is that the rubber rubs back and forth on the silica gel product coating obtained by reaction, the friction force of the rubber is controlled by a mechanical arm, the friction force of each time is kept the same, the accuracy of experimental data is ensured, and experimenters remember back and forth one time and remember the number of back and forth times until the coating is completely abraded.
4. The process for preparing high abrasion silica gel product according to claim 1, wherein: the silicone rubber material is placed at a temperature of 90-180 ℃ for a few seconds and then is subjected to compression molding.
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| CN202010929894.8A CN111978733A (en) | 2020-09-07 | 2020-09-07 | Process method of high-wear-resistance silica gel product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117534962A (en) * | 2023-09-27 | 2024-02-09 | 广东阿普邦新材料科技股份有限公司 | Wear-resistant antibacterial silica gel and preparation method thereof |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117534962A (en) * | 2023-09-27 | 2024-02-09 | 广东阿普邦新材料科技股份有限公司 | Wear-resistant antibacterial silica gel and preparation method thereof |
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Application publication date: 20201124 |