CN108948465A - A kind of high-strength thermal insulation pipeline and preparation method thereof - Google Patents
A kind of high-strength thermal insulation pipeline and preparation method thereof Download PDFInfo
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- CN108948465A CN108948465A CN201810722158.8A CN201810722158A CN108948465A CN 108948465 A CN108948465 A CN 108948465A CN 201810722158 A CN201810722158 A CN 201810722158A CN 108948465 A CN108948465 A CN 108948465A
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
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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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08L2203/18—Applications used for pipes
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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
- C08L2205/03—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
Abstract
The present invention provides a kind of high-strength thermal insulation pipeline and preparation method thereof, is prepared by following component: butadiene-styrene rubber, ethylene propylene diene rubber, hollow glass micropearl, dioctyl phthalate, epoxidized soybean oil, titanium dioxide, thermoplastic resin, attapulgite clay compounded object, modified montmorillonoid, filling powder, inorfil, halogen-free flame retardants and anti-aging agent.Insulated piping prepared by the present invention has good heat-proof quality, and density height, good toughness, intensity are high, environment-protecting and non-poisonous, and raw material are easy to get, preparation method is simple, is suitble to industrialization large-scale production.
Description
Technical field
The invention belongs to heat-insulating material technical fields, and in particular to a kind of high-strength thermal insulation pipeline and preparation method thereof.
Background technique
The conventional insulation materials thermal coefficient such as light-weight brick, refractory fibre, ceramic fiber blanket is relatively high, under given thickness
It is unable to satisfy the power conservation requirement that industrial equipment outside wall temperature is lower than 70 DEG C, therefore the heat-insulating material of low heat conductivity is increasingly by people
Favor.
Currently, there are mainly two types of heat-insulating materials: one is vacuum heat insulation materials, another kind is nano-pore heat insulating materials.It receives
There is a large amount of nanoaperture, and 85% or more pore diameter is less than 50nm in the structure of the siliceous heat-insulating material of rice.In air
Oxygen molecule and the mean free path of nitrogen molecule be about 70nm, it is empty when pore diameter is less than the mean free path of gas
Gas molecule can be considered as " static ", and the convective heat transfer of gas is effectively contained, while the superelevation porosity makes nano-silica again
The solid phase heat transfer of SiClx matter heat-insulating material is restricted, so it is considered as the optimal solid material of current heat-insulating property,
Heat-barrier material field has broad application prospects.
Studies have found that as the temperature rises, the infrared radiation heat transfer effect inside the siliceous heat-insulating material of nanometer is got over
Be more obvious, and silica for infrared radiation almost " transparent ", infrared screening effect is poor, lead to leading for material under high temperature
Hot coefficient increased dramatically, and insulation effect is seriously restricted.In view of the above-mentioned problems, the most common method of the prior art is that introducing is red
All raw materials are uniformly mixed by outer opacifier, are then pressed into required shape.This method can reduce to a certain extent
The thermal coefficient of material at high temperature.
Publication No. CN103807568A discloses a kind of nanometer micropore heat insulating thermal preserving board, and structure is from huyashi-chuuka (cold chinese-style noodles) to hot face
It is followed successively by insulating layer, antiradiation layer and enhancement layer.Infrared light screening agent is contained only in its antiradiation layer, does not contain any strengthening material
Material, dry method compacting not can guarantee its intensity, influence using effect.Moreover, although the addition of antiradiation layer can effectively inhibit spoke
Penetrate heat transfer, but the thermal coefficient for forming the ingredient itself of enhancement layer and antiradiation layer is all very big, in addition the thickness of antiradiation layer
Than relatively thin, with the raising of hot-face temperature, after especially greater than 600 DEG C, heat can reach insulating layer, antiradiation layer quickly
It also can constantly be increased with the interface temperature of insulating layer, according to Boltzmann law it is found that the radiant heat transfer in insulating layer part is made
With enhancing, thermal coefficient increase is shown as, heat-insulating property is bad.Publication No. CN104476857A discloses a kind of nano-silicon
Matter heat-insulating material and preparation method thereof, including heat zone and the cryosphere being compound on the heat zone;The cryosphere is by 60-
80 parts by weight nano silicas, 5-15 parts by weight of inorganic fiber and 15-35 parts of carbon black compositions;The heat zone is by 60-80 weight
Measure part nano silica, 5-15 parts by weight of inorganic fiber and 15-35 parts of infrared light screening agent compositions;The infrared light screening agent is two
One of titanium oxide, zirconium oxide, silicon carbide and crystal whisker of hexa potassium titanate are a variety of.The prior art equally has heat-insulating property not
It is good, and the cost of raw material is higher, and preparation method is complicated.
In summary, it is therefore desirable to a kind of better heat-insulating material, to improve the deficiencies in the prior art.
Summary of the invention
The object of the present invention is to provide a kind of high-strength thermal insulation pipeline and preparation method thereof, insulated pipings prepared by the present invention
With good heat-proof quality, density height, good toughness, intensity are high, environment-protecting and non-poisonous, and raw material are easy to get, preparation method is simple, are suitble to
Industrialization large-scale production.
The present invention provides the following technical solutions:
A kind of high-strength thermal insulation pipeline, the raw material including following parts by weight: 12-17 parts of butadiene-styrene rubber, ethylene propylene diene rubber 11-15
Part, 14-18 parts of hollow glass micropearl, 7-12 parts of dioctyl phthalate, 10-14 parts of epoxidized soybean oil, titanium dioxide 6-11
Part, 12-16 parts of thermoplastic resin, object 8-13 parts attapulgite clay compounded, 9-15 parts of modified montmorillonoid, 7-12 parts of filling powder, nothing
8-14 parts of machine fiber, 3-6 parts of halogen-free flame retardants and 4-7 parts of anti-aging agent.
Preferably, the insulated piping includes the raw material of following parts by weight: 14-17 parts of butadiene-styrene rubber, ethylene propylene diene rubber
11-13 parts, 16-18 parts of hollow glass micropearl, 7-11 parts of dioctyl phthalate, 12-14 parts of epoxidized soybean oil, titanium dioxide
7-11 parts, 12-15 parts of thermoplastic resin, object 9-13 parts attapulgite clay compounded, 9-14 parts of modified montmorillonoid, filling powder 8-12
Part, 8-13 parts of inorfil, 3-5 parts of halogen-free flame retardants and 5-7 parts of anti-aging agent.
Preferably, the insulated piping includes the raw material of following parts by weight: 16 parts of butadiene-styrene rubber, ethylene propylene diene rubber 12
Part, 17 parts of hollow glass micropearl, 9 parts of dioctyl phthalate, 13 parts of epoxidized soybean oil, 10 parts of titanium dioxide, thermoplastic resin
14 parts of rouge, 11 parts of attapulgite clay compounded object, 13 parts of modified montmorillonoid, 9 parts of filling powder, 12 parts of inorfil, halogen-free flame retardants 4
Part and 6 parts of anti-aging agent.
A kind of preparation method of high-strength thermal insulation pipeline, including following preparation step:
A, butadiene-styrene rubber, ethylene propylene diene rubber are imported in mixer, the mixing 1.2-1.5h at 135-145 DEG C, then are cooled to
80-84 DEG C, thermoplastic resin is added, is stirred to react 0.5-0.6h, heat preservation obtains material one;
B, hollow glass micropearl, titanium dioxide, attapulgite clay compounded object and modified montmorillonoid are mixed and is imported in pulverizer, crushed
To 500-600 mesh is crossed, then pours into epoxidized soybean oil and stir evenly, obtain material two;
C, material two is imported in material one, the decentralized processing 8-12min under ultrasound obtains material three;
D, material three, dioctyl phthalate, filling powder, inorfil, halogen-free flame retardants and anti-aging agent are mixed and is imported
In twin screw extruder, at 170-180 DEG C, melts and stir 2.5-2.8h, after extrusion, mould molding, finished product can be obtained.
Preferably, the thermoplastic resin of the step a is ethylene-vinyl acetate copolymer, styrene-butadiene-benzene second
Alkene block copolymer and thermoplastic polyurethane 1:1:2 in mass ratio are mixed.
Preferably, the attapulgite clay compounded object of the step b the preparation method comprises the following steps: by folium artemisiae argyi, purslane be added acetic acid water
In solution, 20-24min is stirred at 70-75 DEG C, adds attapulgite, impregnates 4-5h, then turn with 800-1000r/min
Speed is dispersed with stirring 15-20min, dries after filtering, and attapulgite clay compounded object can be obtained.
Preferably, the modified montmorillonoid of the step b the preparation method comprises the following steps: sodium-based montmorillonite is added to the water, with 120-
The speed of 140r/min stirs 1.2-1.5h, is warming up to 70-72 DEG C, and the 3- sulfopropyl 16 that mass fraction is 7-8wt% is added dropwise
Alkyl dimethyl aqueous ammonium, is stirred to react 0.5-0.8h, filters to take filter cake, washing, drying, is crushed to 300-400 mesh, then with
Double-[γ-(triethoxysilicane) propyl] tetrasulfide, fumed silica mixing, at 90-95 DEG C, with 180-200r/min
Speed stir 3-5h, modified montmorillonoid can be obtained.
Preferably, the modified montmorillonoid of the step b the preparation method comprises the following steps: sodium-based montmorillonite is added to the water, with 140r/
The speed of min stirs 1.4h, is warming up to 70 DEG C, and the 3- sulfopropyl hexadecyldimethyl benzyl ammonium ammonium water that mass fraction is 8wt% is added dropwise
Solution is stirred to react 0.6h, filters to take filter cake, washing, drying, is crushed to 400 mesh, then with double-[γ-(triethoxysilicane) third
Base] tetrasulfide, fumed silica mixing, stir 3h at 90 DEG C, with the speed of 200r/min, modified illiteracy can be obtained
De- soil.
Preferably, the filling powder of the step d is calcium carbonate, barium sulfate, talcum powder and iron powder 5:4:5:1 in mass ratio
It mixes.
Preferably, the inorfil of the step d is alkali-free glass fibre, quartz fibre, polycrystalline mullite fibre and oxygen
Change aluminum fiber 1:2:2:1 in mass ratio to mix.
The beneficial effects of the present invention are:
Insulated piping prepared by the present invention has good heat-proof quality, density height, good toughness, intensity height, environment-protecting and non-poisonous, former material
Material is easy to get, preparation method is simple, is suitble to industrialization large-scale production.
Hollow glass micropearl ingredient in the present invention can increase refraction action of the sound wave when passing through material, to sound transmission
Play the role of obstructions and the losses such as good scattering, diffraction, improve the sound insulation property of material, and hollow glass micropearl adds
Enter, advantageously forms uniform alternate multiple superimposion structure and a large amount of interface layers, material is made preferably to play alternating layer
The performance advantage of the interfacial effect of shape structure is formed simultaneously organic unified entirety, so that material is made to obtain sound insulation, insulation effect,
And the integral strength for improving material, makes that its quality is light but obdurability is good.
Thermoplastic resin in the present invention is ethylene-vinyl acetate copolymer, s-B-S block is total
The proportion of polymers and thermoplastic polyurethane, under the ratio, the above resin component can form good point of compatibility with rubber material
Granular media system is conducive to the dispersion of solid particulate components.
Attapulgite clay compounded object in the present invention, folium artemisiae argyi, the purslane of addition have certain anti-microbial property, can reduce system
At pipeline on the generation of microorganism, bacterium prolong the service life to reduce its erosion to pipeline.
Modified montmorillonoid preparation in the present invention, montmorillonite and fumed silica all have good heat resistance and heat-insulated
Property, montmorillonite has layer structure, carries out intercalation to montmorillonite with 3- sulfopropyl hexadecyldimethyl benzyl ammonium ammonium, expand montmorillonite
Interlamellar spacing and increase the nonpolarity of montmorillonite, on the one hand, the interlamellar spacing of montmorillonite expands, so that fumed silica is more
Be easily accessible between cheating engaging layer, the hydroxyl of hydroxyl and interlayer on fumed silica is chemically bonded, formed montmorillonite and
Fumed silica interlayer, to greatly increase heat resistance and thermal insulation of the invention, on the other hand, the nonpolarity of montmorillonite increases
Greatly, so that montmorillonite is evenly dispersed in rubber, rubber can enter in the intercalation of montmorillonite, to greatly increase of the invention
Tensile strength, heat resistance and thermal insulation.
Inorfil in the present invention is alkali-free glass fibre, quartz fibre, polycrystalline mullite fibre and alumina fibre
Proportion have well that enhancing is multi-purpose for finished product under the proportion of multiple fiber, its tensile strength, hardness can be enhanced
Deng.
Specific embodiment
Embodiment 1
A kind of high-strength thermal insulation pipeline, the raw material including following parts by weight: 17 parts of butadiene-styrene rubber, 11 parts of ethylene propylene diene rubber, sky
14 parts of heart glass microballoon, 12 parts of dioctyl phthalate, 10 parts of epoxidized soybean oil, 11 parts of titanium dioxide, thermoplastic resin 16
Part, 8 parts of attapulgite clay compounded object, 15 parts of modified montmorillonoid, 7 parts of filling powder, 8 parts of inorfil, 6 parts of halogen-free flame retardants and anti-
4 parts of old agent.
A kind of preparation method of high-strength thermal insulation pipeline, including following preparation step:
A, butadiene-styrene rubber, ethylene propylene diene rubber are imported in mixer, the mixing 1.5h at 145 DEG C, then is cooled to 84 DEG C, be added
Thermoplastic resin, is stirred to react 0.6h, and heat preservation obtains material one;
B, hollow glass micropearl, titanium dioxide, attapulgite clay compounded object and modified montmorillonoid are mixed and is imported in pulverizer, crushed
To 600 meshes are crossed, then pours into epoxidized soybean oil and stir evenly, obtain material two;
C, material two is imported in material one, the decentralized processing 8min under ultrasound obtains material three;
D, material three, dioctyl phthalate, filling powder, inorfil, halogen-free flame retardants and anti-aging agent are mixed and is imported
In twin screw extruder, at 180 DEG C, melts and stir 2.8h, after extrusion, mould molding, finished product can be obtained.
The thermoplastic resin of step a is ethylene-vinyl acetate copolymer, Styrene-Butadiene-Styrene Block Copolymer
It is mixed with thermoplastic polyurethane 1:1:2 in mass ratio.
The attapulgite clay compounded object of step b the preparation method comprises the following steps: by folium artemisiae argyi, purslane be added acetic acid aqueous solution in, 70
24min is stirred at DEG C, adds attapulgite, impregnates 4h, then 20min is dispersed with stirring with the revolving speed of 800r/min, after filtering
Drying, can be obtained attapulgite clay compounded object.
The modified montmorillonoid of step b the preparation method comprises the following steps: sodium-based montmorillonite is added to the water, stirred with the speed of 120r/min
1.5h is mixed, is warming up to 72 DEG C, the 3- sulfopropyl hexadecyldimethyl benzyl ammonium aqueous ammonium that mass fraction is 8wt% is added dropwise, stirring is anti-
0.5h is answered, filter cake is filtered to take, washing, drying are crushed to 3400 mesh, then vulcanize with double-[γ-(triethoxysilicane) propyl] four
Object, fumed silica mixing, stir 5h at 90 DEG C, with the speed of 200r/min, modified montmorillonoid can be obtained.
The filling powder of step d is that calcium carbonate, barium sulfate, talcum powder and iron powder 5:4:5:1 in mass ratio are mixed.
The inorfil of step d is that alkali-free glass fibre, quartz fibre, polycrystalline mullite fibre and alumina fibre press matter
Amount is mixed than 1:2:2:1.
Embodiment 2
A kind of high-strength thermal insulation pipeline, the raw material including following parts by weight: 14 parts of butadiene-styrene rubber, 13 parts of ethylene propylene diene rubber, sky
18 parts of heart glass microballoon, 7 parts of dioctyl phthalate, 12 parts of epoxidized soybean oil, 7 parts of titanium dioxide, 12 parts of thermoplastic resin,
9 parts of attapulgite clay compounded object, 14 parts of modified montmorillonoid, 12 parts of filling powder, 13 parts of inorfil, 5 parts of halogen-free flame retardants and anti-
5 parts of old agent.
A kind of preparation method of high-strength thermal insulation pipeline, including following preparation step:
A, butadiene-styrene rubber, ethylene propylene diene rubber are imported in mixer, the mixing 1.2h at 145 DEG C, then is cooled to 84 DEG C, be added
Thermoplastic resin, is stirred to react 0.6h, and heat preservation obtains material one;
B, hollow glass micropearl, titanium dioxide, attapulgite clay compounded object and modified montmorillonoid are mixed and is imported in pulverizer, crushed
To 500 meshes are crossed, then pours into epoxidized soybean oil and stir evenly, obtain material two;
C, material two is imported in material one, the decentralized processing 8min under ultrasound obtains material three;
D, material three, dioctyl phthalate, filling powder, inorfil, halogen-free flame retardants and anti-aging agent are mixed and is imported
In twin screw extruder, at 180 DEG C, melts and stir 2.8h, after extrusion, mould molding, finished product can be obtained.
The thermoplastic resin of step a is ethylene-vinyl acetate copolymer, Styrene-Butadiene-Styrene Block Copolymer
It is mixed with thermoplastic polyurethane 1:1:2 in mass ratio.
The attapulgite clay compounded object of step b the preparation method comprises the following steps: by folium artemisiae argyi, purslane be added acetic acid aqueous solution in, 75
20min is stirred at DEG C, adds attapulgite, impregnates 5h, then 20min is dispersed with stirring with the revolving speed of 800r/min, after filtering
Drying, can be obtained attapulgite clay compounded object.
The modified montmorillonoid of step b the preparation method comprises the following steps: sodium-based montmorillonite is added to the water, with the speed of 120-140r/min
Degree stirring 1.2h, is warming up to 70 DEG C, and the 3- sulfopropyl hexadecyldimethyl benzyl ammonium aqueous ammonium that mass fraction is 7wt% is added dropwise, stirs
Mix reaction 0.8h, filter to take filter cake, washing, drying are crushed to 400 mesh, then with double-[γ-(triethoxysilicane) propyl] four sulphur
Compound, fumed silica mixing, stir 3h at 95 DEG C, with the speed of 200r/min, modified montmorillonoid can be obtained.
The filling powder of step d is that calcium carbonate, barium sulfate, talcum powder and iron powder 5:4:5:1 in mass ratio are mixed.
The inorfil of step d is that alkali-free glass fibre, quartz fibre, polycrystalline mullite fibre and alumina fibre press matter
Amount is mixed than 1:2:2:1.
Embodiment 3
A kind of high-strength thermal insulation pipeline, the raw material including following parts by weight: 16 parts of butadiene-styrene rubber, 12 parts of ethylene propylene diene rubber, sky
17 parts of heart glass microballoon, 9 parts of dioctyl phthalate, 13 parts of epoxidized soybean oil, 10 parts of titanium dioxide, thermoplastic resin 14
Part, 11 parts of attapulgite clay compounded object, 13 parts of modified montmorillonoid, 9 parts of filling powder, 12 parts of inorfil, 4 parts of halogen-free flame retardants and
6 parts of anti-aging agent.
A kind of preparation method of high-strength thermal insulation pipeline, including following preparation step:
A, butadiene-styrene rubber, ethylene propylene diene rubber are imported in mixer, the mixing 1.5h at 135 DEG C, then is cooled to 84 DEG C, be added
Thermoplastic resin, is stirred to react 0.6h, and heat preservation obtains material one;
B, hollow glass micropearl, titanium dioxide, attapulgite clay compounded object and modified montmorillonoid are mixed and is imported in pulverizer, crushed
To 500 meshes are crossed, then pours into epoxidized soybean oil and stir evenly, obtain material two;
C, material two is imported in material one, the decentralized processing 12min under ultrasound obtains material three;
D, material three, dioctyl phthalate, filling powder, inorfil, halogen-free flame retardants and anti-aging agent are mixed and is imported
In twin screw extruder, at 180 DEG C, melts and stir 2.5h, after extrusion, mould molding, finished product can be obtained.
The thermoplastic resin of step a is ethylene-vinyl acetate copolymer, Styrene-Butadiene-Styrene Block Copolymer
It is mixed with thermoplastic polyurethane 1:1:2 in mass ratio.
The attapulgite clay compounded object of step b the preparation method comprises the following steps: by folium artemisiae argyi, purslane be added acetic acid aqueous solution in, 75
20min is stirred at DEG C, adds attapulgite, impregnates 4h, then 20min is dispersed with stirring with the revolving speed of 1000r/min, after filtering
Drying, can be obtained attapulgite clay compounded object.
The modified montmorillonoid of step b the preparation method comprises the following steps: sodium-based montmorillonite is added to the water, stirred with the speed of 140r/min
1.4h is mixed, is warming up to 70 DEG C, the 3- sulfopropyl hexadecyldimethyl benzyl ammonium aqueous ammonium that mass fraction is 8wt% is added dropwise, stirring is anti-
Answer 0.6h, filter to take filter cake, washing, drying are crushed to 400 mesh, then with double-[γ-(triethoxysilicane) propyl] tetrasulfide,
Fumed silica mixing stirs 3h at 90 DEG C, with the speed of 200r/min, modified montmorillonoid can be obtained.
The filling powder of step d is that calcium carbonate, barium sulfate, talcum powder and iron powder 5:4:5:1 in mass ratio are mixed.
The inorfil of step d is that alkali-free glass fibre, quartz fibre, polycrystalline mullite fibre and alumina fibre press matter
Amount is mixed than 1:2:2:1.
Comparative example 1
Detection comparison is carried out using conventional insulation pipeline in the prior art.
The finished product for detecting above embodiments and comparative example preparation, obtains following detection data:
Table one:
Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 |
Density (g/cm3) | 1.33 | 1.31 | 1.33 | 1.25 |
Hardness (Shore A) | 95 | 94 | 95 | 88 |
Tensile strength (MPa) | 4.1 | 4.2 | 4.2 | 3.5 |
The rate of closed hole (%) of liquid nitrogen leaching 48h | 95 | 92 | 95 | 90 |
Thermal coefficient (W/mk) under room temperature | 0.022 | 0.024 | 0.020 | 0.032 |
The water absorption rate (%) of liquid nitrogen leaching 48h | 1.33 | 1.38 | 1.32 | 2.89 |
By the resulting experimental data of table one, it can be deduced that, the properties of the finished product of preparation method preparation of the invention are significantly excellent
Different from common product in the prior art, and the preferred preparation method in the embodiment of the present invention 3, obtain at moral character
It can be the most excellent.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high-strength thermal insulation pipeline, which is characterized in that the raw material including following parts by weight: 12-17 parts of butadiene-styrene rubber, ternary
11-15 parts of EP rubbers, 14-18 parts of hollow glass micropearl, 7-12 parts of dioctyl phthalate, 10-14 parts of epoxidized soybean oil,
6-11 parts of titanium dioxide, 12-16 parts of thermoplastic resin, object 8-13 parts attapulgite clay compounded, 9-15 parts of modified montmorillonoid, filling powder
7-12 parts of material, 8-14 parts of inorfil, 3-6 parts of halogen-free flame retardants and 4-7 parts of anti-aging agent.
2. a kind of high-strength thermal insulation pipeline according to claim 1, which is characterized in that the insulated piping includes following heavy
Measure the raw material of part: 14-17 parts of butadiene-styrene rubber, 11-13 parts of ethylene propylene diene rubber, 16-18 parts of hollow glass micropearl, phthalic acid
It is 7-11 parts of dioctyl ester, 12-14 parts of epoxidized soybean oil, 7-11 parts of titanium dioxide, 12-15 parts of thermoplastic resin, attapulgite clay compounded
9-13 parts of object, 9-14 parts of modified montmorillonoid, 8-12 parts of filling powder, 8-13 parts of inorfil, 3-5 parts of halogen-free flame retardants and anti-old
5-7 parts of agent.
3. a kind of high-strength thermal insulation pipeline according to claim 1, which is characterized in that the insulated piping includes following heavy
Measure the raw material of part: 16 parts of butadiene-styrene rubber, 12 parts of ethylene propylene diene rubber, 17 parts of hollow glass micropearl, dioctyl phthalate 9
Part, 13 parts of epoxidized soybean oil, 10 parts of titanium dioxide, 14 parts of thermoplastic resin, 11 parts of attapulgite clay compounded object, modified montmorillonoid 13
Part, 9 parts of filling powder, 12 parts of inorfil, 4 parts of halogen-free flame retardants and 6 parts of anti-aging agent.
4. a kind of described in any item preparation methods of high-strength thermal insulation pipeline of claim 1-3, which is characterized in that including following
Preparation step:
A, butadiene-styrene rubber, ethylene propylene diene rubber are imported in mixer, the mixing 1.2-1.5h at 135-145 DEG C, then are cooled to
80-84 DEG C, thermoplastic resin is added, is stirred to react 0.5-0.6h, heat preservation obtains material one;
B, hollow glass micropearl, titanium dioxide, attapulgite clay compounded object and modified montmorillonoid are mixed and is imported in pulverizer, crushed
To 500-600 mesh is crossed, then pours into epoxidized soybean oil and stir evenly, obtain material two;
C, material two is imported in material one, the decentralized processing 8-12min under ultrasound obtains material three;
D, material three, dioctyl phthalate, filling powder, inorfil, halogen-free flame retardants and anti-aging agent are mixed and is imported
In twin screw extruder, at 170-180 DEG C, melts and stir 2.5-2.8h, after extrusion, mould molding, finished product can be obtained.
5. a kind of preparation method of high-strength thermal insulation pipeline according to claim 4, which is characterized in that the step a's
Thermoplastic resin is ethylene-vinyl acetate copolymer, Styrene-Butadiene-Styrene Block Copolymer and thermoplastic polyurethane
1:1:2 is mixed in mass ratio.
6. a kind of preparation method of high-strength thermal insulation pipeline according to claim 4, which is characterized in that the step b's
Attapulgite clay compounded object the preparation method comprises the following steps: by folium artemisiae argyi, purslane be added acetic acid aqueous solution in, stir 20- at 70-75 DEG C
24min adds attapulgite, 4-5h is impregnated, then be dispersed with stirring 15-20min with the revolving speed of 800-1000r/min, through filtering
After dry, attapulgite clay compounded object can be obtained.
7. a kind of preparation method of high-strength thermal insulation pipeline according to claim 4, which is characterized in that the step b's
Modified montmorillonoid the preparation method comprises the following steps: sodium-based montmorillonite is added to the water, 1.2-1.5h is stirred with the speed of 120-140r/min,
It is warming up to 70-72 DEG C, the 3- sulfopropyl hexadecyldimethyl benzyl ammonium aqueous ammonium that mass fraction is 7-8wt% is added dropwise, is stirred to react
0.5-0.8h, filters to take filter cake, washing, drying, is crushed to 300-400 mesh, then with double-[γ-(triethoxysilicane) propyl] four
Sulfide, fumed silica mixing, stir 3-5h at 90-95 DEG C, with the speed of 180-200r/min, can be obtained and change
Property montmorillonite.
8. a kind of preparation method of high-strength thermal insulation pipeline according to claim 7, which is characterized in that the step b's
Modified montmorillonoid the preparation method comprises the following steps: sodium-based montmorillonite is added to the water, 1.4h is stirred with the speed of 140r/min, is warming up to 70
DEG C, the 3- sulfopropyl hexadecyldimethyl benzyl ammonium aqueous ammonium that mass fraction is 8wt% is added dropwise, is stirred to react 0.6h, filters to take filter
Cake, washing, drying are crushed to 400 mesh, then mixed with double-[γ-(triethoxysilicane) propyl] tetrasulfide, fumed silica
It closes, stirs 3h at 90 DEG C, with the speed of 200r/min, modified montmorillonoid can be obtained.
9. a kind of preparation method of high-strength thermal insulation pipeline according to claim 4, which is characterized in that the step d's
Filling powder is that calcium carbonate, barium sulfate, talcum powder and iron powder 5:4:5:1 in mass ratio are mixed.
10. a kind of preparation method of high-strength thermal insulation pipeline according to claim 4, which is characterized in that the step d's
Inorfil is alkali-free glass fibre, quartz fibre, polycrystalline mullite fibre and alumina fibre 1:2:2:1 in mass ratio mixing
It forms.
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CN112746384A (en) * | 2020-12-24 | 2021-05-04 | 苏州市君悦新材料科技股份有限公司 | Modified glass fiber cloth for vacuum insulation panel composite film and preparation method thereof |
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Application publication date: 20181207 |