CN111961423B - Hot melt adhesive for cable accessories of nuclear power station and preparation method and application method thereof - Google Patents
Hot melt adhesive for cable accessories of nuclear power station and preparation method and application method thereof Download PDFInfo
- Publication number
- CN111961423B CN111961423B CN202010908457.8A CN202010908457A CN111961423B CN 111961423 B CN111961423 B CN 111961423B CN 202010908457 A CN202010908457 A CN 202010908457A CN 111961423 B CN111961423 B CN 111961423B
- Authority
- CN
- China
- Prior art keywords
- hot melt
- melt adhesive
- parts
- nuclear power
- cable accessories
- 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.)
- Active
Links
Classifications
-
- 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
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0869—Acids or derivatives thereof
-
- 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
-
- 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
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J11/08—Macromolecular additives
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a hot melt adhesive for cable accessories of a nuclear power station, a preparation method and a use method thereof, wherein the hot melt adhesive comprises the following components in parts by weight: 100 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 10-30 parts of polyimide powder; 10-20 parts of a compatilizer; 3-10 parts of an antioxidant; 0.2 to 1 portion of dicumyl peroxide; 0 to 30 portions of flame retardant. The hot melt adhesive can resist high-temperature thermal aging and high-dose irradiation, can resist the damage of high-temperature and high-pressure steam and alkaline solution to materials after being subjected to high-temperature thermal aging and high-dose irradiation treatment, has a softening point of 80-140 ℃, can effectively improve the sealing property and the water resistance of cable accessories, and meets the design requirement of CAP1400 pile type harsh environment.
Description
Technical Field
The invention relates to the field of nuclear power materials, in particular to a hot melt adhesive for cable accessories of a nuclear power station, and a preparation method and a use method thereof.
Background
The cable accessory of the nuclear power station is one of important corollary equipment of a cable system of the nuclear power station, is used for realizing permanent connection and re-insulation between cables and electrical equipment in the nuclear power station, meets the requirement of executing the safety function of the cable accessory under the severe environment working condition, and plays an important role in normal operation and safe shutdown of the nuclear power station.
Compared with the technical requirements of hot melt adhesives in the civil field, the requirements of the field of nuclear power stations on hot melt adhesives of cable accessories are higher. The hot melt adhesive used by the cable accessory product for the nuclear power station not only passes basic performance tests, but also passes type experiments of the cable accessory for the nuclear power station. The hot melt adhesive needs to resist high-temperature thermal aging and high-dose irradiation, and also needs to be capable of resisting the damage of high-temperature and high-pressure steam and alkaline solution to the material after the high-temperature thermal aging and high-dose irradiation treatment. For a third-generation nuclear power station, particularly a CAP1400 reactor type, the requirement on a hot melt adhesive of a cable accessory is higher, the hot melt adhesive is used for matching with other components such as a heat-shrinkable sleeve and the like to jointly complete the use function of the cable accessory, and the requirements of keeping the functional integrity and the required structural integrity under normal working conditions, abnormal working conditions and Design Basis Accident (DBA) working conditions are met after the cable accessory is aged for 60 years under the conditions of high cumulative dose irradiation and 90 ℃.
The hot melt adhesive is a single-component adhesive which is anhydrous, solvent-free, solid at normal temperature and capable of bonding the surface of a material after being melted at high temperature. Because the using amount of an antioxidant is less, no anti-irradiation agent is added, the heat resistance and the irradiation resistance are poor, and the common EVA hot melt adhesive can become brittle after long-time heat resistance and large-radiation-dose irradiation and lose the sealing performance of the hot melt adhesive; the polyamide and polyester hot melt adhesives with good heat resistance can not resist the damage of high-dose irradiation, high-temperature and high-pressure steam and alkaline solution to the materials when being directly used. The softening point of the hot melt adhesive is improved, so that the temperature resistance of the hot melt adhesive can be improved by partially crosslinking the hot melt adhesive, but the fluidity of the hot melt adhesive is obviously deteriorated, and the flowing sealing performance of the hot melt adhesive at high temperature is lost.
Therefore, in order to meet the requirements of the third-generation nuclear power technology, the existing hot melt adhesive is urgently required to be improved, the hot melt adhesive with basically unchanged softening point and basically unchanged flow property is prepared, and meanwhile, the hot melt adhesive can resist high-temperature thermal aging and high-dose irradiation, so that the requirements of the third-generation nuclear power are met, and the heat-shrinkable sleeve pipe product of the nuclear power station is ensured to run safely for a long time.
Disclosure of Invention
The invention mainly aims to provide a hot melt adhesive for cable accessories of a nuclear power station, a preparation method and a use method thereof, wherein the hot melt adhesive can resist high-temperature thermal aging and high-dose irradiation, can bear the damage of high-temperature and high-pressure water vapor and alkaline solution to materials after being subjected to high-temperature thermal aging and high-dose irradiation treatment, and has a softening point of 80-140 ℃, so that the sealing property and the water resistance of the cable accessories can be effectively improved, and the design requirement of CAP1400 pile type harsh environment can be met.
The technical problem to be solved by the invention is realized by the following technical scheme:
the invention provides a hot melt adhesive for cable accessories of a nuclear power station, which comprises the following components in parts by weight: 100 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 10-30 parts of polyimide powder; 10-20 parts of a compatilizer; 3-10 parts of an antioxidant; 0.2 to 1 portion of dicumyl peroxide; 0 to 30 portions of flame retardant.
Optionally, the ethylene-butyl acrylate copolymer hot melt adhesive contains one or more tackifying resins.
Optionally, the tackifying resin is at least one of terpene resin, petroleum resin, rosin resin, and wax.
Optionally, the particle size of the polyimide powder is 10 to 50 microns.
Optionally, the compatibilizer is at least one of maleic anhydride grafted ethylene-butyl acrylate copolymer, maleic anhydride grafted ethylene-vinyl acetate copolymer, maleic anhydride grafted ethylene-octene copolymer, maleic anhydride grafted polyethylene, and maleic anhydride grafted polypropylene.
Optionally, the antioxidant is compounded by tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), 4-bis (a, a-dimethylbenzyl) diphenylamine (antioxidant KY 405), pentaerythritol tetrakis (3-laurylthiopropionate) (antioxidant 412S) and sebacic acid bis-2, 2,6, 6-tetramethylpiperidinol ester (light stabilizer UV 770) according to the weight ratio of 1:1 (0.2-0.8): 1.
Optionally, the dicumyl peroxide is white to light yellow powder with a melting point of 45 ℃ to 55 ℃.
Optionally, the flame retardant is prepared by compounding organic hypophosphite, melamine and zinc borate according to the weight ratio of 1:1 (0.1-0.5).
According to another aspect of the invention, a preparation method of a hot melt adhesive for cable accessories of a nuclear power station is provided, which comprises the following steps: preparing the components according to the mass parts of the components, adding the components into a stirrer after the components are prepared, uniformly mixing, adding the obtained product into a double-screw extruder for blending extrusion, cooling and granulating to obtain the hot melt adhesive for the cable accessories of the nuclear power station.
According to another aspect of the invention, a method for using the hot melt adhesive for the cable accessories of the nuclear power station is provided, which comprises the following steps:
and (3) placing the hot melt adhesive on the cable accessories of the nuclear power station, heating and melting the hot melt adhesive at the temperature of 80-140 ℃, allowing the adhesive to flow, diffuse and fill the surface to be bonded of the cable accessories of the nuclear power station, heating to 180-220 ℃, and curing for 5-10 min.
The invention has the following beneficial effects:
the hot melt adhesive for the cable accessories of the nuclear power station adopts ethylene-butyl acrylate copolymer hot melt adhesive, polyimide powder, compatilizer, antioxidant, dicumyl peroxide and flame retardant as raw materials, all the components are matched with each other, the hot melt adhesive has a synergistic effect, can resist high-temperature thermal aging and high-dose irradiation, can bear the damage of high-temperature and high-pressure water vapor and alkaline solution to the materials after being subjected to high-temperature thermal aging and high-dose irradiation treatment, and can effectively improve the sealing property and the water resistance of the cable accessories at the softening point of 80-140 ℃, thereby meeting the design requirement of CAP 1400-reactor type harsh environment.
The hot melt adhesive for the cable accessories of the nuclear power station has the advantages that the hot melt adhesive is solid adhesive at normal temperature, has no viscosity, has fluidity in a heated state, and is self-crosslinked and cured at a high temperature of 200 ℃ after being stably filled, so that the excellent bonding effect is achieved, the aging-resistant service life of the material can be effectively prolonged, and the service life can reach more than 60 years at a service temperature of 90 ℃.
The softening point of the hot melt adhesive for the cable accessories of the nuclear power station is 80-140 ℃, and is close to that of the hot melt adhesive used for normal cable accessories, so that the sealing property and the waterproof property of the cable accessories can be effectively improved.
The hot melt adhesive for the cable accessories of the nuclear power station has excellent copper corrosion resistance and higher peel strength.
Detailed Description
The raw materials and equipment used in the invention are common raw materials and equipment in the field if not specified; the methods used in the present invention are conventional in the art unless otherwise specified.
Unless otherwise defined, terms used in the present specification have the same meaning as those generally understood by those skilled in the art, but in case of conflict, the definitions in the present specification shall control.
The use of "including," "comprising," "containing," "having," or other variations thereof herein, is meant to encompass the non-exclusive inclusion, as such terms are not to be construed. The term "comprising" means that other steps and ingredients can be added that do not affect the end result. The term "comprising" also includes the terms "consisting of …" and "consisting essentially of …". The compositions and methods/processes of the present invention comprise, consist of, and consist essentially of the essential elements and limitations described herein, as well as any of the additional or optional ingredients, components, steps, or limitations described herein.
All numbers or expressions referring to quantities of ingredients, process conditions, etc. used in the specification and claims are to be understood as modified in all instances by the term "about". All ranges directed to the same component or property are inclusive of the endpoints, and independently combinable. Because these ranges are continuous, they include every value between the minimum and maximum values. It should also be understood that any numerical range recited herein is intended to include all sub-ranges within that range.
As used herein, "parts by weight" or "parts by weight" are used interchangeably and can be any fixed weight expressed in milligrams, grams, or kilograms (e.g., 1mg, 1g, 2g, 5g, or 1kg, etc.). For example, a composition consisting of 1 part by weight of component a and 9 parts by weight of component b may be a composition consisting of 1g of component a +9 g of component b, or 10 g of component a +90 g of component b.
The hot melt adhesive for the cable accessories of the nuclear power station comprises the following components in parts by weight: 100 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 10-30 parts of polyimide powder; 10-20 parts of a compatilizer; 3-10 parts of an antioxidant; 0.2 to 1 portion of dicumyl peroxide; 0 to 30 portions of flame retardant.
In the embodiment of the invention, the ethylene-butyl acrylate copolymer hot melt adhesive contains one or more tackifying resins, so that the bonding strength of the hot melt adhesive can be enhanced. In the embodiment of the present invention, the tackifier resin is not particularly limited, and a tackifier resin known to those skilled in the art may be used, and preferably, the tackifier resin is at least one of a terpene resin, a petroleum resin, a rosin resin, and a wax.
In the examples of the present invention, the polyimide powder is 10 parts to 30 parts by weight, for example, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, and any value therebetween.
Among hot melt adhesives, polyimides have been widely used because of their excellent heat resistance, excellent mechanical properties, dielectric properties, and the like. However, polyimide is usually insoluble and infusible due to its specific rigid or semi-rigid skeleton structure and extremely strong intermolecular forces, and the melt flowability of the hot melt adhesive is poor during use. The inventor unexpectedly discovers in research that the heat resistance, the solubility and the melt fluidity of polyimide can be improved by taking the ethylene-butyl acrylate copolymer hot melt adhesive and the polyimide powder as the matrix in the hot melt adhesive, the prepared hot melt adhesive has good construction fluidity, so the prepared hot melt adhesive can well infiltrate the bonding surface and improve the bonding strength, the flow filling property in the using process meets the composite processing and application requirements of cable accessories, and the high-temperature heat aging resistance and the high-dose irradiation resistance of the hot melt adhesive can be improved.
In the embodiment of the invention, the particle size of the polyimide powder is 10-50 microns.
In the embodiment of the present invention, the weight part of the compatibilizer is 10 to 20 parts, for example, 10 parts, 12 parts, 15 parts, 18 parts, 20 parts, and any value therebetween.
The compatibilizing agent of the present invention is not particularly limited, and may be one known to those skilled in the art, prepared by a known method or commercially available. By way of example, the compatibilizer is at least one of maleic anhydride grafted ethylene-butyl acrylate copolymer, maleic anhydride grafted ethylene-vinyl acetate copolymer, maleic anhydride grafted ethylene-octene copolymer, maleic anhydride grafted polyethylene, and maleic anhydride grafted polypropylene. Preferably, the compatilizer is maleic anhydride grafted ethylene-butyl acrylate copolymer.
In the embodiment of the present invention, the antioxidant is in an amount of 3 to 10 parts by weight, for example, 3 parts, 4 parts, 5 parts, 8 parts, 10 parts, and any value therebetween.
The antioxidant of the present invention is not particularly limited, and may be one known to those skilled in the art, prepared by a known method or commercially available.
As a further improvement, in the invention, the antioxidant is tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), 4' -bis (alpha, alpha-dimethylbenzyl) diphenylamine (antioxidant KY-405), pentaerythritol tetrakis (3-lauryl thiopropionate) (antioxidant TH-412S), bis-2, 2,6, 6-tetramethylpiperidinol sebacate (light stabilizer UV 770) in a weight ratio of 1: (0.2-0.8): 1, has good synergistic effect, obtains unexpected technical effect, obviously improves the performance of the whole hot melt adhesive material for resisting long-time high-temperature thermal aging and high-dose irradiation, and greatly reduces the degradation of oxidation and gamma rays on the material.
More preferably, the antioxidant is compounded by tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), 4' -bis (alpha, alpha-dimethylbenzyl) diphenylamine (antioxidant KY-405), pentaerythritol tetrakis (3-lauryl thiopropionate) (antioxidant TH-412S) and bis-2, 2,6, 6-tetramethylpiperidinol sebacate (light stabilizer UV 770) in a weight ratio of 1:1:0.5: 1.
In the embodiment of the present invention, the dicumyl peroxide is 0.2 to 1 part by weight, for example, 0.2, 0.4, 0.5, 0.8, 1 part by weight or any value therebetween.
In the embodiment of the invention, the dicumyl peroxide is white to light yellow powder, and the melting point is 45-55 ℃.
In the embodiment of the present invention, the weight part of the flame retardant is 0 to 30 parts, for example, 0 part, 5 parts, 15 parts, 20 parts, 30 parts and any value therebetween.
The flame retardant is not particularly limited in the present invention, and may be one known to those skilled in the art, prepared by a known method or commercially available.
As a further improvement, in the embodiment of the invention, the flame retardant is prepared by compounding organic hypophosphite, melamine and zinc borate according to the weight ratio of 1:1 (0.1-0.5), and more preferably, the flame retardant is prepared by compounding organic hypophosphite, melamine and zinc borate according to the weight ratio of 1:1: 0.2.
The flame-retardant hot melt adhesive in the prior art has lower flame retardance, and the flame retardant added into the hot melt adhesive is improved, so that the prepared hot melt adhesive has good flame retardance. In consideration of comprehensive performance of the whole technical scheme, based on mutual influence and matching with other materials, the organic hypophosphite, the melamine and the zinc borate are selected to be compounded as the flame retardant according to the weight ratio of 1:1 (0.1-0.5), so that the flame retardant has a good flame retardant synergistic effect, an unexpected technical effect is obtained, meanwhile, the flame retardant has good compatibility with other raw materials, the use amount of the inorganic flame retardant is greatly reduced, and the influence on mechanical properties is small. In addition, the flame retardant is free of halogen, so that the flame retardant has the characteristics of environmental protection and no toxicity.
In a second aspect, a preparation method of the hot melt adhesive for the cable accessories of the nuclear power station in the first aspect is provided, and comprises the following steps: preparing the components according to the mass parts of the components, adding the components into a stirrer after the components are prepared, uniformly mixing, adding the obtained product into a double-screw extruder for blending extrusion, cooling and granulating to obtain the hot melt adhesive for the cable accessories of the nuclear power station.
In a third aspect, a method for using the hot melt adhesive for the cable accessories of the nuclear power station in the first aspect is provided, which comprises the following steps:
and (3) placing the hot melt adhesive on the cable accessories of the nuclear power station, heating and melting the hot melt adhesive at the temperature of 80-140 ℃, allowing the adhesive to flow, diffuse and fill the surface to be bonded of the cable accessories of the nuclear power station, heating to 180-220 ℃, and curing for 5-10 min.
The hot melt adhesive for the cable accessories of the nuclear power station has the advantages that the hot melt adhesive is solid adhesive at normal temperature, has no viscosity, has fluidity in a heated state, and is self-crosslinked and cured at a high temperature of 200 ℃ after being stably filled, so that the excellent bonding effect is achieved, the aging-resistant service life of the material can be effectively prolonged, and the service life can reach more than 60 years at a service temperature of 90 ℃.
In order to better understand the technical solutions, the technical solutions will be described in detail with reference to specific examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention.
Example 1
The hot melt adhesive for the cable accessories of the nuclear power station comprises the following components in parts by weight: 100 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 10 parts of polyimide powder; 10 parts of a compatilizer; 3 parts of an antioxidant; dicumyl peroxide 0.5 weight portions.
The ethylene-butyl acrylate copolymer hot melt adhesive contains tackifying resin, wherein the tackifying resin is terpene resin; the particle size of the polyimide powder is 10-50 microns; the compatilizer is maleic anhydride grafted ethylene-butyl acrylate copolymer; the antioxidant is compounded by tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), 4-bis (a, a-dimethylbenzyl) diphenylamine (antioxidant KY 405), pentaerythritol tetrakis (3-lauryl thiopropionate) (antioxidant 412S) and sebacic acid bis-2, 2,6, 6-tetramethyl piperidinol ester (light stabilizer UV 770) according to the weight ratio of 1:1:0.5: 1.
The dicumyl peroxide is white to light yellow powder, and the melting point is 45-55 ℃.
The preparation method of the hot melt adhesive for the cable accessories of the nuclear power station comprises the following steps: preparing the components according to the mass parts of the components, adding the components into a stirrer after the components are prepared, uniformly mixing, adding the obtained product into a double-screw extruder for blending extrusion, cooling and granulating to obtain the hot melt adhesive for the cable accessories of the nuclear power station.
Example 2
The hot melt adhesive for the cable accessories of the nuclear power station comprises the following components in parts by weight: 100 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 30 parts of polyimide powder; 20 parts of a compatilizer; 10 parts of an antioxidant; 1 part of dicumyl peroxide; and 20 parts of a flame retardant.
The ethylene-butyl acrylate copolymer hot melt adhesive contains tackifying resin, wherein the tackifying resin is petroleum resin and rosin resin; the particle size of the polyimide powder is 10-50 microns; the compatilizer is maleic anhydride grafted ethylene-butyl acrylate copolymer and maleic anhydride grafted polyethylene; the antioxidant is compounded by tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), 4-bis (a, a-dimethylbenzyl) diphenylamine (antioxidant KY 405), pentaerythritol tetrakis (3-lauryl thiopropionate) (antioxidant 412S) and sebacic acid bis-2, 2,6, 6-tetramethyl piperidinol ester (light stabilizer UV 770) according to the weight ratio of 1:1:0.2: 1.
The dicumyl peroxide is white to light yellow powder, and the melting point is 45-55 ℃.
The flame retardant is prepared by compounding organic hypophosphite, melamine and zinc borate according to the weight ratio of 1:1: 0.2.
The preparation method of the hot melt adhesive for the cable accessories of the nuclear power station comprises the following steps: preparing the components according to the mass parts of the components, adding the components into a stirrer after the components are prepared, uniformly mixing, adding the obtained product into a double-screw extruder for blending extrusion, cooling and granulating to obtain the hot melt adhesive for the cable accessories of the nuclear power station.
Example 3
The hot melt adhesive for the cable accessories of the nuclear power station comprises the following components in parts by weight: 100 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 10 parts of polyimide powder; 20 parts of a compatilizer; 8 parts of an antioxidant; 0.6 part of dicumyl peroxide; and 30 parts of a flame retardant.
The ethylene-butyl acrylate copolymer hot melt adhesive contains tackifying resin, wherein the tackifying resin is rosin resin; the particle size of the polyimide powder is 10-50 microns; the compatilizer is maleic anhydride grafted ethylene-butyl acrylate copolymer; the antioxidant is compounded by tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), 4-bis (a, a-dimethylbenzyl) diphenylamine (antioxidant KY 405), pentaerythritol tetrakis (3-lauryl thiopropionate) (antioxidant 412S) and sebacic acid bis-2, 2,6, 6-tetramethyl piperidinol ester (light stabilizer UV 770) according to the weight ratio of 1:1:0.8: 1.
The dicumyl peroxide is white to light yellow powder, and the melting point is 45-55 ℃.
The flame retardant is prepared by compounding organic hypophosphite, melamine and zinc borate according to the weight ratio of 1:1: 0.1.
The preparation method of the hot melt adhesive for the cable accessories of the nuclear power station comprises the following steps: preparing the components according to the mass parts of the components, adding the components into a stirrer after the components are prepared, uniformly mixing, adding the obtained product into a double-screw extruder for blending extrusion, cooling and granulating to obtain the hot melt adhesive for the cable accessories of the nuclear power station.
Example 4
The hot melt adhesive for the cable accessories of the nuclear power station comprises the following components in parts by weight: 100 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 20 parts of polyimide powder; 15 parts of a compatilizer; 6 parts of an antioxidant; 0.2 part of dicumyl peroxide; 15 parts of a flame retardant.
The ethylene-butyl acrylate copolymer hot melt adhesive contains tackifying resin, wherein the tackifying resin is wax; the particle size of the polyimide powder is 10-50 microns; the compatilizer is maleic anhydride grafted polypropylene; the antioxidant is compounded by tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), 4-bis (a, a-dimethylbenzyl) diphenylamine (antioxidant KY 405), pentaerythritol tetrakis (3-lauryl thiopropionate) (antioxidant 412S) and sebacic acid bis-2, 2,6, 6-tetramethyl piperidinol ester (light stabilizer UV 770) according to the weight ratio of 1:1:0.4: 1.
The dicumyl peroxide is white to light yellow powder, and the melting point is 45-55 ℃.
The flame retardant is prepared by compounding organic hypophosphite, melamine and zinc borate according to the weight ratio of 1:1: 0.5.
The preparation method of the hot melt adhesive for the cable accessories of the nuclear power station comprises the following steps: preparing the components according to the mass parts of the components, adding the components into a stirrer after the components are prepared, uniformly mixing, adding the obtained product into a double-screw extruder for blending extrusion, cooling and granulating to obtain the hot melt adhesive for the cable accessories of the nuclear power station.
Example 5
The hot melt adhesive for the cable accessories of the nuclear power station comprises the following components in parts by weight: 100 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 15 parts of polyimide powder; 12 parts of a compatilizer; 5 parts of an antioxidant; 0.8 part of dicumyl peroxide; and 25 parts of a flame retardant.
The particle size of the polyimide powder is 10-50 microns; the compatilizer is maleic anhydride grafted ethylene-butyl acrylate copolymer; the antioxidant is beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate (antioxidant 1076); the dicumyl peroxide is white to light yellow powder, and the melting point is 45-55 ℃; the flame retardant is magnesium hydroxide.
The preparation method of the hot melt adhesive for the cable accessories of the nuclear power station comprises the following steps: preparing the components according to the mass parts of the components, adding the components into a stirrer after the components are prepared, uniformly mixing, adding the obtained product into a double-screw extruder for blending extrusion, cooling and granulating to obtain the hot melt adhesive for the cable accessories of the nuclear power station.
Comparative example 1
Based on example 1, the difference is only that: the hot melt adhesive for the cable accessories of the nuclear power station in the comparative example 1 comprises the following components in parts by weight: 110 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 10 parts of a compatilizer; 3 parts of an antioxidant; dicumyl peroxide 0.5 weight portions.
Comparative example 2
Based on example 1, the difference is only that: the hot melt adhesive for the cable accessories of the nuclear power station in the comparative example 2 comprises the following components in parts by weight: 110 parts of polyimide powder; 10 parts of a compatilizer; 3 parts of an antioxidant; dicumyl peroxide 0.5 weight portions.
Comparative example 3
Based on example 1, the difference is only that: in the comparative example 3, the antioxidant is 4, 4-bis (a, a-dimethylbenzyl) diphenylamine (antioxidant KY 405), pentaerythritol tetrakis (3-laurylthiopropionate) (antioxidant 412S), bis-2, 2,6, 6-tetramethylpiperidinol sebacate (light stabilizer UV 770) compounded according to the weight ratio of 1:0.5: 1.
Comparative example 4
Based on example 1, the difference is only that: in comparative example 4, the antioxidant is a pentaerythrityl tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] ester (antioxidant 1010), pentaerythrityl tetrakis (3-laurylthiopropionate) (antioxidant 412S), bis-2, 2,6, 6-tetramethylpiperidinol sebacate (light stabilizer UV 770) compounded in a weight ratio of 1:0.5: 1.
Comparative example 5
Based on example 1, the difference is only that: in the comparative example 5, the antioxidant is compounded by tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), 4-bis (a, a-dimethylbenzyl) diphenylamine (antioxidant KY 405) and bis-2, 2,6, 6-tetramethylpiperidyl sebacate (light stabilizer UV 770) according to the weight ratio of 1:1: 1.
Comparative example 6
Based on example 1, the difference is only that: in the comparative example 6, the antioxidant is prepared by compounding tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), 4-bis (a, a-dimethylbenzyl) diphenylamine (antioxidant KY 405) and pentaerythritol tetrakis (3-lauryl thiopropionate) (antioxidant 412S) according to the weight ratio of 1:1: 0.5.
Comparative example 7
Based on example 2, the difference is only that: in comparative example 7, the flame retardant is prepared by compounding melamine and zinc borate according to the weight ratio of 1: 0.2.
Comparative example 8
Based on example 2, the difference is only that: in comparative example 8, the flame retardant is prepared by compounding organic hypophosphite and zinc borate according to the weight ratio of 1: 0.2.
Comparative example 9
Based on example 2, the difference is only that: in comparative example 9, the flame retardant is prepared by compounding organic hypophosphite and melamine according to the weight ratio of 1: 1.
Test example
In order to verify the performance of the hot melt adhesive, the hot melt adhesives prepared in the examples 1 to 5 and the comparative examples 1 to 6 are respectively subjected to relevant performance tests, and the test results are shown in the following table 1:
TABLE 1 Performance test results of the hot melt adhesives prepared in examples 1 to 5 and comparative examples 1 to 6
As can be seen from Table 1, the hot melt adhesive of the present invention can withstand high temperature thermal aging and high dose irradiation, and can have a service life of more than 60 years at a service temperature of 90 ℃ as demonstrated by LOCA requirements.
The flame retardant properties of the hot melt adhesives prepared in the example 2 and the comparative examples 7-9 were tested by the American standard UL94 vertical burning test method, the sample size was 130mm (length) x 20mm (width) x 4mm (thickness), and the flame retardant rating was gradually increased from HB, V-2, V-1 to V-0; v-0: after the sample is subjected to combustion test for 10 seconds twice, the flame is extinguished within 30 seconds, and no comburent falls off; v-1: after the sample is subjected to combustion test for 10 seconds twice, the flame is extinguished within 60 seconds, and no comburent falls off; v-2: after two 10 second burn tests on the samples, the flame extinguished within 60 seconds and there was a burn drop.
The test results show that the vertical burning tests of the embodiment 2 and the comparative examples 7-9 respectively reach a V-0 grade, a V-2 grade and a V-2 grade, and the fact that the compounding of the organic hypophosphite, the melamine and the zinc borate as the flame retardant has a synergistic effect is proved, so that the hot melt adhesive has an obvious flame retardant effect.
The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.
Claims (8)
1. The hot melt adhesive for the cable accessories of the nuclear power station is characterized by comprising the following components in parts by weight: 100 parts of ethylene-butyl acrylate copolymer hot melt adhesive; 10-30 parts of polyimide powder; 10-20 parts of a compatilizer; 3-10 parts of an antioxidant; 0.2-1 part of dicumyl peroxide; 0-30 parts of a flame retardant; the antioxidant is compounded by tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 4-bis (a, a-dimethylbenzyl) diphenylamine, pentaerythritol tetrakis (3-lauryl thiopropionate) and sebacic acid bis-2, 2,6, 6-tetramethylpiperidyl ester according to the weight ratio of 1:1 (0.2-0.8): 1; the flame retardant is prepared by compounding organic hypophosphite, melamine and zinc borate according to the weight ratio of 1:1 (0.1-0.5).
2. The hot melt adhesive for nuclear power plant cable accessories of claim 1, wherein the ethylene-butyl acrylate copolymer hot melt adhesive contains tackifying resin.
3. The hot melt adhesive for the cable accessories in the nuclear power plant as claimed in claim 2, wherein the tackifying resin is at least one of terpene resin, petroleum resin, rosin resin and wax.
4. The hot melt adhesive for the cable accessories of the nuclear power plant as claimed in claim 1, wherein the particle size of the polyimide powder is 10 to 50 micrometers.
5. The hot melt adhesive for nuclear power plant cable accessories according to claim 1, wherein the compatibilizer is maleic anhydride grafted ethylene-butyl acrylate copolymer.
6. The hot melt adhesive for the cable accessories of the nuclear power plant as claimed in claim 1, wherein the dicumyl peroxide is white to light yellow powder, and has a melting point of 45-55 ℃.
7. The method for preparing the hot melt adhesive for the cable accessories of the nuclear power plant as claimed in any one of claims 1 to 6, which comprises the following steps: preparing the components according to the mass parts of the components, adding the components into a stirrer after the components are prepared, uniformly mixing, adding the obtained product into a double-screw extruder for blending extrusion, cooling and granulating to obtain the hot melt adhesive for the cable accessories of the nuclear power station.
8. The use method of the hot melt adhesive for the cable accessories of the nuclear power plant as claimed in any one of claims 1 to 6, comprises the following steps:
and (3) placing the hot melt adhesive on the cable accessories of the nuclear power station, heating and melting the hot melt adhesive at the temperature of 80-140 ℃, allowing the hot melt adhesive to flow, diffuse and fill the surface to be bonded of the cable accessories of the nuclear power station, heating to 180-220 ℃, and curing for 5-10 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908457.8A CN111961423B (en) | 2020-09-01 | 2020-09-01 | Hot melt adhesive for cable accessories of nuclear power station and preparation method and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908457.8A CN111961423B (en) | 2020-09-01 | 2020-09-01 | Hot melt adhesive for cable accessories of nuclear power station and preparation method and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111961423A CN111961423A (en) | 2020-11-20 |
| CN111961423B true CN111961423B (en) | 2022-04-15 |
Family
ID=73392366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010908457.8A Active CN111961423B (en) | 2020-09-01 | 2020-09-01 | Hot melt adhesive for cable accessories of nuclear power station and preparation method and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111961423B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787809A (en) * | 2021-07-30 | 2021-12-14 | 泉州辉丽鞋服有限公司 | Pre-laminating process of microfiber leather and hot melt adhesive film |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5412012A (en) * | 1994-01-24 | 1995-05-02 | Quantum Chemical Corporation | Flame retardant insulation compositions having improved strippability |
| CN103980619A (en) * | 2014-02-26 | 2014-08-13 | 中广核三角洲（江苏）塑化有限公司 | Low-smoke halogen-free flame-retardation insulation material for class 1E category K1 cables of nuclear power station |
| CN104804672A (en) * | 2015-04-22 | 2015-07-29 | 深圳市沃尔核材股份有限公司 | Hot melt adhesive for electric cable accessory of nuclear power station |
-
2020
- 2020-09-01 CN CN202010908457.8A patent/CN111961423B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111961423A (en) | 2020-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101649088B (en) | Halogen-free intumescent flame-retardant polypropylene/ethylene vinyl acetate cable material | |
| CN101805508B (en) | Halogen-free fire-retardant polyphenyl ether composition capable of improving low-temperature toughness and preparation method thereof | |
| CN109161120B (en) | Anti-aging material, preparation method and application in preparation of cable protection pipe | |
| CN101899183A (en) | Radiation cross-linking waterproof flame retardant polyolefin nano-composite material and preparation method thereof | |
| CN102766293A (en) | Radiation cross-linked low-smoke halogen-free red phosphorus-free flame retardant material and its application | |
| CN101456991B (en) | Halogen-free flame retardant sheath material | |
| JPH107913A (en) | Flame-retardant and halogen-free composition | |
| CN110591350B (en) | Smoke-inhibiting polyamide composition and preparation method thereof | |
| CN111961423B (en) | Hot melt adhesive for cable accessories of nuclear power station and preparation method and application method thereof | |
| CN102585378A (en) | High heat resistant glass fiber enhanced halogen-free flame retardant polypropylene and preparation method thereof | |
| CN110240742B (en) | Heat-resistant anti-UV flame-retardant sheath material and preparation method thereof | |
| CN113621325B (en) | Flame-retardant hot melt adhesive and preparation method thereof | |
| CN111647226A (en) | Water-immersion-resistant weather-resistant halogen-free flame-retardant polypropylene material and preparation method and application thereof | |
| CN103232824B (en) | A kind of Irradiation-resistanhot hot melt adhesive and preparation method thereof | |
| CN102898715B (en) | Extremely temperature sensitive halogen-free and low smoke flame retardant plastic alloy for cables and preparation method thereof | |
| CN103724812A (en) | Modified cable protection pipe material and preparation method thereof | |
| CN109851976A (en) | Modified TPE fire-resistant cable material of a kind of Halogen and preparation method thereof | |
| CN108795048A (en) | A kind of new-energy automobile electric wire and cable material and preparation method thereof | |
| CN104592737A (en) | Dynamic-vulcanization poly(phenylene oxide) elastomer and preparation method thereof | |
| CN103205089B (en) | High-temperature resistant halogen-free flame-retardant cable material and preparation method thereof | |
| CN110540707B (en) | Multi-element flame-retardant polypropylene material and preparation method thereof | |
| CN104829827A (en) | Modified polyarylene ether resin and composite halogen-free flame-retardant material thereof, preparation methods and application of modified polyarylene ether resin and composite halogen-free flame-retardant material | |
| CN114437494A (en) | TPE sheath material for charging cable and preparation method thereof | |
| CN102329491A (en) | PC/PBT (polycarbonate/polybutylene terephthalate) composite material with high glowing filament ignition temperature and preparation method thereof | |
| CN104829909A (en) | High-temperature-resistant high-strength silane crosslinked polyethylene cable material and preparation method therefor |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Wall Industrial Park, Lanjing North Road, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: 518000 Wall Industrial Park, Lanjing North Road, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |