CN110643322A - Preparation method of self-curing insulating packaging material glue - Google Patents
Preparation method of self-curing insulating packaging material glue Download PDFInfo
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- CN110643322A CN110643322A CN201910811993.3A CN201910811993A CN110643322A CN 110643322 A CN110643322 A CN 110643322A CN 201910811993 A CN201910811993 A CN 201910811993A CN 110643322 A CN110643322 A CN 110643322A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on 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; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/10—Adhesives in the form of films or foils without carriers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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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
- 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
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Abstract
The invention belongs to the field of insulating materials, in particular to a preparation method of self-curing insulating packaging material glue, aiming at the problems of poor weather resistance and high repair rate of the traditional insulating repair material in the existing power and communication industries, the following scheme is proposed, S1, the preparation method comprises the following steps of prefabricating base glue, placing methyl silicone resin and silicon rubber in a reaction kettle, and removing low-boiling-point substances by reduced pressure distillation at 70-80 ℃ to obtain an intermediate product A; s2, heating the intermediate product A in S1 to 100-120 ℃, and carrying out a reduced pressure reaction for 1 hour to obtain an intermediate product B; s3, transferring the intermediate product B in the step S2 into a vacuum stirrer, adding color paste and filler, stirring uniformly, and performing vacuum pumping and water removal reaction at the temperature of 100 ℃ and 120 ℃ for 1 hour to obtain an intermediate product C. The self-curing insulating packaging material adhesive obtained by the invention has excellent insulating, weather-proof, heat-resistant and flame-retardant properties, low repair rate, wide application range and good market competitiveness.
Description
Technical Field
The invention relates to the field of insulating materials, in particular to a preparation method of self-curing insulating packaging material glue.
Background
When two high-voltage cables need to be connected together, an intermediate joint needs to be manufactured at the joint of the high-voltage cables, wherein the exposed copper core of the cable needs to be wound and coated to achieve insulation.
The existing insulating packaging material mainly comprises: insulating black tape: also called insulating adhesive plaster, called black adhesive plaster for short. The main components are cotton yarn and asphalt. Has good low-temperature environment use performance. But the fireproof and waterproof performance is not good, and the waterproof performance is gradually replaced; PVC electrical tape: also known as PVC electrical tape. The main component is soft polyvinyl chloride (PVC) film. The cable has the characteristics of good insulativity, flame resistance, voltage resistance, cold resistance and the like, but is limited by the ductility problem of PVC materials, the tightness of the wrapping of the cable head cannot be well realized, and the water leakage is easy to occur; high-pressure self-adhesive tape: the main component is rubber, has good ductility and waterproofness, is mainly used for insulating and wrapping high-voltage wiring joints, and is also expanded to be used for insulating low-voltage lines at present. However, it is inferior in strength to the above two kinds of tapes, so that the two kinds are used in combination.
At present, the insulation and the waterproof protection of wires and cables in the air are realized; the communication cable joint is protected by waterproof, protective and other multipurpose ethylene propylene rubber belts and natural rubber belts. In order to make the insulating layer and the cable conductor have better contact and eliminate the increase of the electric field intensity on the surface of the conductor caused by the non-smoothness on the surface of the conductor, the surface of the conductor is coated with an inner shielding layer made of a semi-conductive material, and a semi-conductive self-adhesive rubber tape is often used in practical application. In addition, the self-adhesive rubber tape can expand and deform after high temperature and high humidity in summer, the sealing performance and the insulated wire of the overhead cable can be affected, and the PVC tape is required to be wrapped on the outermost surface of the overhead cable to be used as a protective layer. This also means that need use three kinds of rubber bands to carry out the package material protection, and this has increased the cost of construction, has increaseed the construction degree of difficulty, influences the efficiency of construction.
Therefore, it is necessary to provide a method for preparing a self-curing insulating packaging material adhesive, which is used for solving the above problems.
Disclosure of Invention
The preparation method of the self-curing insulation packaging material adhesive provided by the invention solves the bottleneck problems of poor weather resistance, high repair rate, complex construction operation and the like of the traditional insulation repair material in the power and communication industries.
In order to achieve the purpose, the invention adopts the following technical scheme:
the preparation method of the self-curing insulating packaging material glue comprises the following steps: s1, preparing base rubber, namely placing methyl silicone resin and silicon rubber into a reaction kettle, and distilling under reduced pressure at 70-80 ℃ to remove low-boiling-point substances to obtain an intermediate product A; s2, heating the intermediate product A in S1 to 100-120 ℃, and carrying out a reduced pressure reaction for 1 hour to obtain an intermediate product B; s3, transferring the intermediate product B in the step S2 into a vacuum stirrer, adding color paste and filler, stirring uniformly, and performing vacuum pumping and water removal reaction at the temperature of 100-120 ℃ for 1 hour to obtain an intermediate product C; s4, cooling the intermediate product C of S3 to 58-62 ℃, adding the intermediate product C into a screw extruder, adding a curing agent, a coupling agent and a catalyst into the screw extruder, reacting for 1 hour, and extruding to obtain an intermediate product D; and S5, extruding the intermediate product D in the step S4 into strips under the protection of nitrogen, attaching a release film, cutting to obtain a finished product, storing in an aluminum foil bag in vacuum, and storing the finished product.
Preferably, in the S1, the component ratio of the methyl silicone resin to the silicone rubber is 2: 3;
preferably, in the S3, the color paste is yellow paste, and the filler is silicon micropowder or aluminum hydroxide alumina;
preferably, in S4, the curing agent is methyltrimethoxysilane or tetramethoxysilane, the coupling agent is aminosilane, and the catalyst is titanate or chelate catalyst.
The beneficial effects of the invention are as follows: the insulating packaging material which has good formability, certain initial strength and can be cured at room temperature is obtained through the formula. The obtained packing material has excellent insulating, weather-proof, heat-resistant and flame-retardant properties; the adaptability is wide, the cutting can be carried out at will, the plasticity is good, and the sticking, winding and plugging can be realized; low curing requirement, good adhesion to base material and no maintenance after operation.
Drawings
Fig. 1 is a flow chart of a preparation method of the self-curing insulating packaging material glue provided by the invention.
Fig. 2 is a schematic diagram of a preparation method of the self-curing insulating packaging material glue provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The working principle is as follows: referring to fig. 2, R1 is a structure within a dashed box in the figure.
Example 1:
referring to fig. 1-2, the preparation method of the self-curing insulating packaging material glue of the embodiment includes the following raw material components by weight: 250 parts of methyl silicone resin, 375 parts of hydroxy silicone rubber, 8 parts of color paste, 625 parts of silicon micropowder, 1.7 parts of curing agent, 22 parts of coupling agent and 17 parts of catalyst.
In this embodiment, the preparation method of the self-curing insulating packaging material glue includes the following steps: s1, preparing base rubber, namely placing methyl silicone resin and silicon rubber into a reaction kettle, and distilling under reduced pressure at 70-80 ℃ to remove low-boiling-point substances to obtain an intermediate product A; s2, heating the intermediate product A in S1 to 100-120 ℃, and carrying out a reduced pressure reaction for 1 hour to obtain an intermediate product B; s3, transferring the intermediate product B in the step S2 into a vacuum stirrer, adding color paste and filler, stirring uniformly, and performing vacuum pumping and water removal reaction at the temperature of 100-120 ℃ for 1 hour to obtain an intermediate product C; s4, cooling the intermediate product C of S3 to 58-62 ℃, adding the intermediate product C into a screw extruder, adding a curing agent, a coupling agent and a catalyst into the screw extruder, reacting for 1 hour, and extruding to obtain an intermediate product D; s5, extruding the intermediate product D in S4 into strips under the protection of nitrogen, adhering a release film, cutting to obtain a finished product, storing the finished product in an aluminum foil bag in vacuum, and storing the finished product, wherein in S1, the component ratio of methyl silicone resin to silicon rubber is 2:3, in S3, color paste is yellow paste, filler is silicon micropowder, in S4, a curing agent is methyltrimethoxysilane or tetramethoxysilane, a coupling agent is aminosilane, and a catalyst is titanate or a chelate catalyst.
Example 2:
referring to fig. 1-2, the preparation method of the self-curing insulating packaging material glue of the embodiment includes the following raw material components by weight: 190 parts of methyl silicone resin, 435 parts of hydroxy silicone rubber, 8 parts of color paste, 625 parts of silicon micropowder, 1.7 parts of curing agent, 22 parts of coupling agent and 17 parts of catalyst.
In this embodiment, the preparation method of the self-curing insulating packaging material glue includes the following steps: s1, preparing base rubber, namely placing methyl silicone resin and silicon rubber into a reaction kettle, and distilling under reduced pressure at 70-80 ℃ to remove low-boiling-point substances to obtain an intermediate product A; s2, heating the intermediate product A in S1 to 100-120 ℃, and carrying out a reduced pressure reaction for 1 hour to obtain an intermediate product B; s3, transferring the intermediate product B in the step S2 into a vacuum stirrer, adding color paste and filler, stirring uniformly, and performing vacuum pumping and water removal reaction at the temperature of 100-120 ℃ for 1 hour to obtain an intermediate product C; s4, cooling the intermediate product C of S3 to 58-62 ℃, adding the intermediate product C into a screw extruder, adding a curing agent, a coupling agent and a catalyst into the screw extruder, reacting for 1 hour, and extruding to obtain an intermediate product D; s5, extruding the intermediate product D in S4 into strips under the protection of nitrogen, adhering a release film, cutting to obtain a finished product, storing the finished product in an aluminum foil bag in vacuum, and storing the finished product, wherein in S1, the component ratio of methyl silicone resin to silicon rubber is 2:3, in S3, color paste is yellow paste, filler is silicon micropowder, in S4, a curing agent is methyltrimethoxysilane or tetramethoxysilane, a coupling agent is aminosilane, and a catalyst is titanate or a chelate catalyst.
Example 3:
referring to fig. 1-2, the preparation method of the self-curing insulating packaging material glue of the embodiment includes the following raw material components by weight: 250 parts of methyl silicone resin, 375 parts of hydroxy silicone rubber, 8 parts of color paste, 625 parts of silicon micropowder, 1.7 parts of curing agent, 22 parts of coupling agent and 17 parts of catalyst.
In this embodiment, the preparation method of the self-curing insulating packaging material glue includes the following steps: s1, preparing base rubber, namely placing methyl silicone resin and silicon rubber into a reaction kettle, and distilling under reduced pressure at 70-80 ℃ to remove low-boiling-point substances to obtain an intermediate product A; s2, heating the intermediate product A in S1 to 100-120 ℃, and carrying out a reduced pressure reaction for 1 hour to obtain an intermediate product B; s3, transferring the intermediate product B in the step S2 into a vacuum stirrer, adding color paste and filler, stirring uniformly, and performing vacuum pumping and water removal reaction at the temperature of 100-120 ℃ for 1 hour to obtain an intermediate product C; s4, cooling the intermediate product C of S3 to 58-62 ℃, adding the intermediate product C into a screw extruder, adding a curing agent, a coupling agent and a catalyst into the screw extruder, reacting for 0.5 hour, and extruding to obtain an intermediate product D; s5, extruding the intermediate product D in S4 into strips under the protection of nitrogen, adhering a release film, cutting to obtain a finished product, storing the finished product in an aluminum foil bag in vacuum, and storing the finished product, wherein in S1, the component ratio of methyl silicone resin to silicon rubber is 2:3, in S3, color paste is yellow paste, filler is silicon micropowder, in S4, a curing agent is methyltrimethoxysilane or tetramethoxysilane, a coupling agent is aminosilane, and a catalyst is titanate or a chelate catalyst.
The following test results were obtained by testing the self-curing insulating materials manufactured in examples 1 to 3:
analyzing experimental data:
the self-curing insulating packaging material prepared by the method is coated on the surface of a release film, and under experimental conditions, a sample prepared in the embodiment 1 has excellent insulating, weather-proof, heat-resistant and flame-retardant properties; the self-curing insulating packaging material adhesive has wide adaptability, can be cut at will, has good plasticity, can be attached, wound and plugged, and has poor hardness, breakdown voltage and ductility in the embodiments 2 and 3, so that the self-curing insulating packaging material adhesive prepared in the embodiment 1 has the optimal performance under the self-curing packaging material adhesive, and basically reaches the level of the existing foreign products.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The preparation method of the self-curing insulating packaging material glue comprises the following steps, and is characterized in that:
s1, preparing base rubber, namely placing methyl silicone resin and silicon rubber into a reaction kettle, and distilling under reduced pressure at 70-80 ℃ to remove low-boiling-point substances to obtain an intermediate product A;
s2, heating the intermediate product A in S1 to 100-120 ℃, and carrying out a reduced pressure reaction for 1 hour to obtain an intermediate product B;
s3, transferring the intermediate product B in the step S2 into a vacuum stirrer, adding color paste and filler, stirring uniformly, and performing vacuum pumping and water removal reaction at the temperature of 100-120 ℃ for 1 hour to obtain an intermediate product C;
s4, cooling the intermediate product C of S3 to 58-62 ℃, adding the intermediate product C into a screw extruder, adding a curing agent, a coupling agent and a catalyst into the screw extruder, reacting for 1 hour, and extruding to obtain an intermediate product D;
and S5, extruding the intermediate product D in the step S4 into strips under the protection of nitrogen, attaching a release film, cutting to obtain a finished product, storing in an aluminum foil bag in vacuum, and storing the finished product.
2. The method for preparing the self-curing insulating packaging material glue according to claim 1, wherein in the S1, the component ratio of the methyl silicone resin to the silicone rubber is 2: 3.
3. The method for preparing the self-curing insulating packaging material adhesive according to claim 1, wherein in the step S3, the color paste is yellow paste, and the filler is silicon micropowder or aluminum hydroxide.
4. The method of claim 1, wherein in S4, the curing agent is methyltrimethoxysilane or tetramethoxysilane, the coupling agent is aminosilane, and the catalyst is titanate or chelate catalyst.
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| CN201910811993.3A CN110643322A (en) | 2019-08-30 | 2019-08-30 | Preparation method of self-curing insulating packaging material glue |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114318942A (en) * | 2021-11-25 | 2022-04-12 | 国网上海市电力公司 | Preparation method of amino silane modified cellulose insulation paper of vegetable oil transformer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109456598A (en) * | 2018-05-29 | 2019-03-12 | 浙江上青元电力科技有限公司 | A kind of selfcurable insulative packaging material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109456598A (en) * | 2018-05-29 | 2019-03-12 | 浙江上青元电力科技有限公司 | A kind of selfcurable insulative packaging material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114318942A (en) * | 2021-11-25 | 2022-04-12 | 国网上海市电力公司 | Preparation method of amino silane modified cellulose insulation paper of vegetable oil transformer |
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Address after: 223800 No. seven, Daqing Road, eco chemical science and Technology Industrial Park, Jiangsu, Suqian Applicant after: Suqian Tongchuang Chemical Technology Co., Ltd Address before: 223800 No. seven, Daqing Road, eco chemical science and Technology Industrial Park, Jiangsu, Suqian Applicant before: SUQIAN TONGCHUANG CHEMICAL TECHNOLOGY Co.,Ltd. |
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Application publication date: 20200103 |