CN109181064A - A kind of preparation method of high voltage withstanding terminal box - Google Patents
A kind of preparation method of high voltage withstanding terminal box Download PDFInfo
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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- 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
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- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- 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
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
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- 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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Abstract
A kind of preparation method of high voltage withstanding terminal box, belongs to photovoltaic junction box technical field.Preparation process is as follows: polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide, aluminium hydroxide, expansible graphite alkene, phosphite ester and talcum powder are mixed；Then mixture is heated while stirring 20 ~ 30 min at a temperature of 50 ~ 60 DEG C, carbon black and lignin is then added, is warming up to 80 ~ 90 DEG C, continues 30 ~ 60 min of stirring, be cooled to room temperature rear spare；Dodecafluoroheptyl methacrylate, sodium hydrate aqueous solution and 1,4-butanediol are added into said mixture, after mixing evenly hot setting；By the mixture after solidification through melting mixing, extruding pelletization, then gained particle is added in injection molding machine, molding demoulds to get the high pressure resistant terminal box.High pressure resistant terminal box prepared by the present invention has many advantages, such as that high-low temperature resistant, anti-high voltage capability are strong, good flame retardation effect, ageing resistance are strong and waterproof.
Description
Technical field
The invention belongs to photovoltaic junction box technical fields, and in particular to a kind of preparation method of high voltage withstanding terminal box.
Background technique
Photovoltaic junction box is mainly used for the electric power for generating solar cell module and external connection, i.e.,
Component lead-out wire and junction box connection, junction box route are connect with outside line again.
Photovoltaic junction box mainly includes the electric elements in terminal box body, cable, cable connector and box.Box is intracorporal
Electric elements mainly include the electronic components such as diode.Due to solar cell module use occasion particularity and itself
Valuableness value, photovoltaic junction box must have following characteristic: 1, strong anti-aging, resistance to UV and fire retardancy；2, meet
Excellent radiating mode is used under outdoor severe environmental conditions, internal temperature is effectively reduced in reasonable cavity volume, to meet
Electrical safety requirements；3, good waterproof, dustproof effect.
Most still terminal box that goes wrong on large-sized photovoltaic power station at present is burned out phenomenon, and most of is all because dissipating
Caused by hot property is bad.Many producers are also constantly improving, for example use the materials such as red copper, brass, ceramics as cooling fin,
Thermal paste heat dissipation is either filled in box body or increases the breakdown performance etc. of diode, is not solved the problems, such as at all.Meanwhile for one
A little high-tension cables, it is also necessary to which photovoltaic junction box has high voltage bearing ability.
Application No. is the Chinese patent applications of 201611113737X to disclose a kind of high-quality optical Fiber Closure and its preparation
Method, the high-quality optical Fiber Closure are added to the molding of injection molding machine back warp by low temperature resistant high fire-retardance ABS composite material particle, take off
Mould obtains, and the low temperature resistant high fire-retardance ABS composite material particle is formed by the Raw material processing of following parts by weight: ABS resin 60-80
Part, 40-60 parts of PC resin, 5-10 parts of EPDM resin, 6-10 parts of antioxidant, 5-8 parts of nano silver, 8-12 parts of composite flame-retardant agent,
Low temperature resistant plasticizer 5-8 parts.Although this low temperature resistant high fire-retardance ABS plastic has preferable resistance to low temperature and anti-flammability, can
To be processed into part of various shapes, such as optical Fiber Closure with Shooting Technique, long service life, safety is good.But it is disclosed
Terminal box does not have anti-aging, waterproof and high voltage bearing effect, and flame retardant property needs to be promoted.
Summary of the invention
The technical issues of solution: in view of the above technical problems, the present invention provides a kind of preparation side of high voltage withstanding terminal box
Method has the advantages that high-low temperature resistant, anti-high voltage, fire-retardant, anti-aging and waterproof.
Technical solution: a kind of preparation method of high voltage withstanding terminal box, the preparation method comprises the following steps:
Step 1 in parts by mass, weighs 40 ~ 50 parts of polyethylene, 20 ~ 30 parts of silicon rubber, 30 ~ 50 parts of polyhydroxyalkanoates, 2 ~ 5
Part ammonium polyphosphate, 1 ~ 3 part of magnesium hydroxide, 2 ~ 4 parts of aluminium hydroxides, 3 ~ 7 parts of expansible graphite alkene, 5 ~ 8 parts of carbon blacks, 1 ~ 3 part of phosphorous
Acid esters, 0.2 ~ 0.5 part of talcum powder, 1 ~ 2 part of lignin, 2 ~ 4 parts of dodecafluoroheptyl methacrylates, 20 ~ 30 part of 20 ~ 30 wt% hydrogen
Aqueous solution of sodium oxide and 1 ~ 3 part of bis- butanol of 1,4- are spare；
Step 2 is by polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide, aluminium hydroxide, expansible graphite
Alkene, phosphite ester and talcum powder are put into high-speed mixer, after mixing 10 ~ 20 min under 1000 ~ 1200 r/ min revolving speeds
It takes out stand-by；
Step 3 heats while stirring mixture prepared by step 2 20 ~ 30 min at a temperature of 50 ~ 60 DEG C, is then added
Carbon black and lignin are warming up to 80 ~ 90 DEG C, continue 30 ~ 60 min of stirring, are cooled to room temperature rear spare；
Step 4 mixes dodecafluoroheptyl methacrylate and sodium hydrate aqueous solution, then baking at a temperature of 65 ~ 80 DEG C
20 ~ 24 h are dried in case, and 1,4-butanediol is then added and reacts 1 ~ 2 h under nitrogen protection, is subsequently poured into step 3 and is cooled to room
It in mixture after temperature, pours into mold after mixing evenly, solidifies 30 ~ 60 min at a temperature of 120 ~ 140 DEG C；
Mixture after solidification through melting mixing, extruding pelletization, then gained particle is added in injection molding machine by step 5, at
Type, demoulding are to get the high pressure resistant terminal box.
Preferably, in the step 1 in parts by mass, weighing 45 parts of polyethylene, 25 parts of silicon rubber, 45 parts of poly- hydroxyls
Alkanoic acid ester, 3 parts of ammonium polyphosphate, 2 parts of magnesium hydroxides, 3 parts of aluminium hydroxides, 5 parts of expansible graphite alkene, 6 parts of carbon blacks, 2 parts of phosphorous acid
Ester, 0.3 part of talcum powder, 1.5 parts of lignin, 3 parts of dodecafluoroheptyl methacrylates, 25 part of 20 wt% sodium hydrate aqueous solution and
2 parts of bis- butanol of 1,4- are spare.
Preferably, the carbon black is N330 type carbon black.
Preferably, the ammonium polyphosphate degree of polymerization is 1500 ~ 1600.
Preferably, in the step 2 by polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide,
Aluminium hydroxide, expansible graphite alkene, phosphite ester and talcum powder are put into high-speed mixer, are mixed under 1000 r/ min revolving speeds
It is taken out for use after closing 15 min.
Preferably, mixture prepared by step 2 is heated while stirring 25 at a temperature of 55 DEG C in the step 3
Then min is added carbon black and lignin, is warming up to 85 DEG C, continue to stir 45 min, be cooled to room temperature rear spare.
Preferably, dodecafluoroheptyl methacrylate and sodium hydrate aqueous solution are mixed in the step 4, then
24 h are dried in baking oven at a temperature of 70 DEG C, 1,4-butanediol is then added and reacts 1.5 h under nitrogen protection, is subsequently poured into step
Rapid three be cooled to room temperature after mixture in, pour into mold after mixing evenly, solidify 45 min at a temperature of 130 DEG C.
Ammonium polyphosphate is used as with chemical stability is good, hygroscopicity is small, dispersibility is excellent, specific gravity is small, low toxin；
Magnesium hydroxide and aluminium hydroxide are also used for the production quantity of corrosive gas for eliminating smoke and reducing material for fire-retardant；Inflatable stone
Black alkene (EG) is a kind of nanocomposite.Common H2SO4EG obtained is aoxidized when by 200 DEG C or more high temperature, sulfuric acid with
Redox reaction occurs between graphite carbon atom, generates a large amount of SO2、CO2And vapor, make EG start to expand, and 1100
DEG C when reach maximum volume, 280 when final volume can achieve initial times.This characteristic enables EG when fire occurs
Increased by the moment of volume by fray-out of flame.Antioxidant is combined using primary antioxidant and auxiliary antioxidant, and primary antioxidant uses
Carbon black, auxiliary antioxidant are phosphite ester, and the mechanism of action of primary antioxidant is mainly and the freedom that generates in high molecular polymer
Base reacts to reach oxidation resistant purpose.Under low temperature environment, phosphite ester is a kind of good peroxide decomposer.It is sub-
It is reduced into alcohols material after phosphate and peroxide reactions, itself is oxidized to phosphate.Talcum powder is a kind of resistance to height
Low temperature agent.
The utility model has the advantages that the hydrolysate knot that 1. present invention will obtain after lignin and dodecafluoroheptyl methacrylate hydrolysis
It closes, plays synergistic effect, fluorine atom aggregation can be made on the surface of the material, form embedding polyethylene mixing material
Water isolation in superficial layer, with air, declines its hydrophilicity, since the hydrone in air is conductor, in normal temperature air
In the hydrophilicity moisture for causing to absorb in air that is lower reduce, therefore improve the anti-high voltage capability and anti-electric shock of material
Wear performance.2. high pressure resistant terminal box prepared by the present invention has high-low temperature resistant, anti-high voltage capability strong, good flame retardation effect, anti-ageing
The advantages that change ability is strong and waterproof.
Specific embodiment
Embodiment 1
A kind of preparation method of high voltage withstanding terminal box, the preparation method comprises the following steps:
Step 1 in parts by mass, weigh 40 parts of polyethylene, 20 parts of silicon rubber, 30 parts of polyhydroxyalkanoates, 2 parts of ammonium polyphosphate,
1 part of magnesium hydroxide, 2 parts of aluminium hydroxides, 3 parts of expansible graphite alkene, 5 parts of carbon blacks, 1 part of phosphite ester, 0.2 part of talcum powder, 1 part of wood
Quality, 2 parts of dodecafluoroheptyl methacrylates, 20 part of 20 wt% sodium hydrate aqueous solution and 1 part of-two butanol of Isosorbide-5-Nitrae are spare, described
Carbon black is N330 type carbon black, and the ammonium polyphosphate degree of polymerization is 1500 ~ 1600.
Step 2 is by polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide, aluminium hydroxide, inflatable
Graphene, phosphite ester and talcum powder are put into high-speed mixer, are taken out after mixing 10 min under 1000 r/ min revolving speeds
For use.
Step 3 heats while stirring mixture prepared by step 2 20 min at 50 °C, and charcoal is then added
Black and lignin is warming up to 80 DEG C, continues to stir 30 min, be cooled to room temperature rear spare.
Step 4 mixes dodecafluoroheptyl methacrylate and sodium hydrate aqueous solution, then at a temperature of 65 DEG C
20 h are dried in baking oven, 1,4-butanediol is then added and reacts 1 h under nitrogen protection, are subsequently poured into after step 3 is cooled to room temperature
Mixture in, pour into mold after mixing evenly, solidify 30 min at a temperature of 120 DEG C.
Gained particle through melting mixing, extruding pelletization, then is added to injection molding machine by the mixture after solidification by step 5
In, molding demoulds to get the high pressure resistant terminal box.
Embodiment 2
A kind of preparation method of high voltage withstanding terminal box, the preparation method comprises the following steps:
Step 1 in parts by mass, weigh 50 parts of polyethylene, 30 parts of silicon rubber, 50 parts of polyhydroxyalkanoates, 5 parts of ammonium polyphosphate,
3 parts of magnesium hydroxides, 4 parts of aluminium hydroxides, 7 parts of expansible graphite alkene, 8 parts of carbon blacks, 3 parts of phosphite esters, 0.5 part of talcum powder, 2 parts of wood
Quality, 4 parts of dodecafluoroheptyl methacrylates, 30 part of 30 wt% sodium hydrate aqueous solution and 3 parts of-two butanol of Isosorbide-5-Nitrae are spare, described
Carbon black is N330 type carbon black, and the ammonium polyphosphate degree of polymerization is 1500 ~ 1600.
Step 2 is by polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide, aluminium hydroxide, inflatable
Graphene, phosphite ester and talcum powder are put into high-speed mixer, are taken out after mixing 20 min under 1200 r/ min revolving speeds
For use.
Step 3 heats while stirring mixture prepared by step 2 30 min at a temperature of 60 DEG C, and charcoal is then added
Black and lignin is warming up to 90 DEG C, continues to stir 60 min, be cooled to room temperature rear spare.
Step 4 mixes dodecafluoroheptyl methacrylate and sodium hydrate aqueous solution, then at a temperature of 80 DEG C
24 h are dried in baking oven, 1,4-butanediol is then added and reacts 2 h under nitrogen protection, are subsequently poured into after step 3 is cooled to room temperature
Mixture in, pour into mold after mixing evenly, solidify 60 min at a temperature of 140 DEG C.
Gained particle through melting mixing, extruding pelletization, then is added to injection molding machine by the mixture after solidification by step 5
In, molding demoulds to get the high pressure resistant terminal box.
Embodiment 3
A kind of preparation method of high voltage withstanding terminal box, the preparation method comprises the following steps:
Step 1 in parts by mass, weigh 45 parts of polyethylene, 25 parts of silicon rubber, 45 parts of polyhydroxyalkanoates, 3 parts of ammonium polyphosphate,
2 parts of magnesium hydroxides, 3 parts of aluminium hydroxides, 5 parts of expansible graphite alkene, 6 parts of carbon blacks, 2 parts of phosphite esters, 0.3 part of talcum powder, 1.5 parts
Lignin, 3 parts of dodecafluoroheptyl methacrylates, 25 part of 20 wt% sodium hydrate aqueous solution and 2 parts of-two butanol of Isosorbide-5-Nitrae are spare, institute
Stating carbon black is N330 type carbon black, and the ammonium polyphosphate degree of polymerization is 1500 ~ 1600.
Step 2 is by polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide, aluminium hydroxide, inflatable
Graphene, phosphite ester and talcum powder are put into high-speed mixer, are taken out after mixing 15 min under 1000 r/ min revolving speeds
For use.
Step 3 heats while stirring mixture prepared by step 2 25 min at a temperature of 55 DEG C, and charcoal is then added
Black and lignin is warming up to 85 DEG C, continues to stir 45 min, be cooled to room temperature rear spare.
Step 4 mixes dodecafluoroheptyl methacrylate and sodium hydrate aqueous solution, then at a temperature of 70 DEG C
24 h are dried in baking oven, and 1,4-butanediol is then added and reacts 1.5 h under nitrogen protection, is subsequently poured into step 3 and is cooled to room temperature
It in mixture afterwards, pours into mold after mixing evenly, solidifies 45 min at a temperature of 130 DEG C.
Gained particle through melting mixing, extruding pelletization, then is added to injection molding machine by the mixture after solidification by step 5
In, molding demoulds to get the high pressure resistant terminal box.
Comparative example 1
With embodiment 3, difference is not add lignin, and specific preparation process is as follows:
Step 1 in parts by mass, weigh 45 parts of polyethylene, 25 parts of silicon rubber, 45 parts of polyhydroxyalkanoates, 3 parts of ammonium polyphosphate,
2 parts of magnesium hydroxides, 3 parts of aluminium hydroxides, 5 parts of expansible graphite alkene, 6 parts of carbon blacks, 2 parts of phosphite esters, 0.3 part of talcum powder, 3 parts of first
Base dodecafluorhe-ptylacrylate, 25 part of 20 wt% sodium hydrate aqueous solution and 2 parts of-two butanol of Isosorbide-5-Nitrae are spare, and the carbon black is N330
Type carbon black, the ammonium polyphosphate degree of polymerization are 1500 ~ 1600.
Step 2 is by polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide, aluminium hydroxide, inflatable
Graphene, phosphite ester and talcum powder are put into high-speed mixer, are taken out after mixing 15 min under 1000 r/ min revolving speeds
For use.
Step 3 heats while stirring mixture prepared by step 2 25 min at a temperature of 55 DEG C, and charcoal is then added
It is black, 85 DEG C are warming up to, continues to stir 45 min, be cooled to room temperature rear spare.
Step 4 mixes dodecafluoroheptyl methacrylate and sodium hydrate aqueous solution, then at a temperature of 70 DEG C
24 h are dried in baking oven, and 1,4-butanediol is then added and reacts 1.5 h under nitrogen protection, is subsequently poured into step 3 and is cooled to room temperature
It in mixture afterwards, pours into mold after mixing evenly, solidifies 45 min at a temperature of 130 DEG C.
Gained particle through melting mixing, extruding pelletization, then is added to injection molding machine by the mixture after solidification by step 5
In, molding demoulds to get the high pressure resistant terminal box.
Comparative example 2
With embodiment 3, difference is not add lignin and carbon black, and specific preparation process is as follows:
Step 1 in parts by mass, weigh 45 parts of polyethylene, 25 parts of silicon rubber, 45 parts of polyhydroxyalkanoates, 3 parts of ammonium polyphosphate,
2 parts of magnesium hydroxides, 3 parts of aluminium hydroxides, 5 parts of expansible graphite alkene, 2 parts of phosphite esters, 0.3 part of talcum powder, 3 parts of methacrylic acids
Ten difluoro heptyl esters, 25 part of 20 wt% sodium hydrate aqueous solution and 2 parts of-two butanol of Isosorbide-5-Nitrae are spare, and the carbon black is N330 type carbon black,
The ammonium polyphosphate degree of polymerization is 1500 ~ 1600.
Step 2 is by polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide, aluminium hydroxide, inflatable
Graphene, phosphite ester and talcum powder are put into high-speed mixer, are taken out after mixing 15 min under 1000 r/ min revolving speeds
For use.
Step 3 heats while stirring mixture prepared by step 2 25 min at a temperature of 55 DEG C, is warming up to 85 DEG C,
Continue to stir 45 min, be cooled to room temperature rear spare.
Step 4 mixes dodecafluoroheptyl methacrylate and sodium hydrate aqueous solution, then at a temperature of 70 DEG C
24 h are dried in baking oven, and 1,4-butanediol is then added and reacts 1.5 h under nitrogen protection, is subsequently poured into step 3 and is cooled to room temperature
It in mixture afterwards, pours into mold after mixing evenly, solidifies 45 min at a temperature of 130 DEG C.
Gained particle through melting mixing, extruding pelletization, then is added to injection molding machine by the mixture after solidification by step 5
In, molding demoulds to get the high pressure resistant terminal box.
By terminal box prepared by embodiment 1 ~ 3 and comparative example 1 and comparative example 2 rest on temperature be 80 DEG C, humidity 75%,
Pressure is to take out 15 days in the seal box of 18MPa and carry out experimental observation, be then again placed in terminal box in seal box 30 days, is surveyed
Try its biological degradation rate and tensile strength.Test result is referring to following table.
The terminal box sample that respectively prepared by Example 1 ~ 3 and comparative example 1 and comparative example 2 is cut into a thickness of 2 mm, diameter
For the disk of 30 mm, then at room temperature, relative humidity test dielectric constant under conditions of being 30 ~ 80%.It then respectively will be real
It applies terminal box prepared by example 1 ~ 3 and comparative example 1 and comparative example 2 to be immersed in water for 24 hours, then tests the power of its water absorbing properties.
Test result is referring to following table.
In conclusion the hydrolysate knot that the present invention obtains after hydrolyzing lignin and dodecafluoroheptyl methacrylate
It closes, plays synergistic effect, fluorine atom aggregation can be made on the surface of the material, form embedding polyethylene mixing material
Water isolation in superficial layer, with air, declines its hydrophilicity, since the hydrone in air is conductor, in normal temperature air
In the hydrophilicity moisture for causing to absorb in air that is lower reduce, therefore improve the anti-high voltage capability and anti-electric shock of material
Wear performance.
Claims (7)
1. a kind of preparation method of high voltage withstanding terminal box, which is characterized in that the preparation method comprises the following steps:
Step 1 in parts by mass, weighs 40 ~ 50 parts of polyethylene, 20 ~ 30 parts of silicon rubber, 30 ~ 50 parts of polyhydroxyalkanoates, 2 ~ 5
Part ammonium polyphosphate, 1 ~ 3 part of magnesium hydroxide, 2 ~ 4 parts of aluminium hydroxides, 3 ~ 7 parts of expansible graphite alkene, 5 ~ 8 parts of carbon blacks, 1 ~ 3 part of phosphorous
Acid esters, 0.2 ~ 0.5 part of talcum powder, 1 ~ 2 part of lignin, 2 ~ 4 parts of dodecafluoroheptyl methacrylates, 20 ~ 30 part of 20 ~ 30 wt% hydrogen
Aqueous solution of sodium oxide and 1 ~ 3 part of bis- butanol of 1,4- are spare；
Step 2 is by polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide, aluminium hydroxide, expansible graphite
Alkene, phosphite ester and talcum powder are put into high-speed mixer, after mixing 10 ~ 20 min under 1000 ~ 1200 r/ min revolving speeds
It takes out stand-by；
Step 3 heats while stirring mixture prepared by step 2 20 ~ 30 min at a temperature of 50 ~ 60 DEG C, is then added
Carbon black and lignin are warming up to 80 ~ 90 DEG C, continue 30 ~ 60 min of stirring, are cooled to room temperature rear spare；
Step 4 mixes dodecafluoroheptyl methacrylate and sodium hydrate aqueous solution, then baking at a temperature of 65 ~ 80 DEG C
20 ~ 24 h are dried in case, and 1,4-butanediol is then added and reacts 1 ~ 2 h under nitrogen protection, is subsequently poured into step 3 and is cooled to room
It in mixture after temperature, pours into mold after mixing evenly, solidifies 30 ~ 60 min at a temperature of 120 ~ 140 DEG C；
Mixture after solidification through melting mixing, extruding pelletization, then gained particle is added in injection molding machine by step 5, at
Type, demoulding are to get the high pressure resistant terminal box.
2. a kind of preparation method of high voltage withstanding terminal box according to claim 1, which is characterized in that in the step 1
In parts by mass, 45 parts of polyethylene, 25 parts of silicon rubber, 45 parts of polyhydroxyalkanoates, 3 parts of ammonium polyphosphate, 2 parts of hydroxides are weighed
Magnesium, 3 parts of aluminium hydroxides, 5 parts of expansible graphite alkene, 6 parts of carbon blacks, 2 parts of phosphite esters, 0.3 part of talcum powder, 1.5 parts of lignin, 3
Part dodecafluoroheptyl methacrylate, 25 part of 20 wt% sodium hydrate aqueous solution and 2 parts of bis- butanol of 1,4- are spare.
3. a kind of preparation method of high voltage withstanding terminal box according to claim 1, which is characterized in that the carbon black is
N330 type carbon black.
4. a kind of preparation method of high voltage withstanding terminal box according to claim 1, which is characterized in that the ammonium polyphosphate
The degree of polymerization is 1500 ~ 1600.
5. a kind of preparation method of high voltage withstanding terminal box according to claim 1, which is characterized in that in the step 2
By polyethylene, silicon rubber, polyhydroxyalkanoates, ammonium polyphosphate, magnesium hydroxide, aluminium hydroxide, expansible graphite alkene, phosphite ester
It is put into high-speed mixer with talcum powder, is taken out for use after 15 min are mixed under 1000 r/ min revolving speeds.
6. a kind of preparation method of high voltage withstanding terminal box according to claim 1, which is characterized in that in the step 3
Mixture prepared by step 2 is heated while stirring 25 min at a temperature of 55 DEG C, carbon black and lignin, heating is then added
To 85 DEG C, continues to stir 45 min, be cooled to room temperature rear spare.
7. a kind of preparation method of high voltage withstanding terminal box according to claim 1, which is characterized in that in the step 4
Dodecafluoroheptyl methacrylate and sodium hydrate aqueous solution are mixed, then dry 24 h in baking oven at a temperature of 70 DEG C, so
1,4-butanediol is added afterwards and reacts 1.5 h under nitrogen protection, is subsequently poured into the mixture after step 3 is cooled to room temperature, stirs
It is poured into mold after mixing uniformly, solidifies 45 min at a temperature of 130 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024076529A1 (en) * | 2022-10-03 | 2024-04-11 | Danimer Ipco, Llc | Extrusion of high moisture pha |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101851429A (en) * | 2010-06-11 | 2010-10-06 | 奇瑞汽车股份有限公司 | Lignin composite material and preparation method thereof |
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Application publication date: 20190111 |