CN104086919B - A kind of high temperature resistant electric power protection pipe - Google Patents

A kind of high temperature resistant electric power protection pipe Download PDF

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Publication number
CN104086919B
CN104086919B CN201410326127.2A CN201410326127A CN104086919B CN 104086919 B CN104086919 B CN 104086919B CN 201410326127 A CN201410326127 A CN 201410326127A CN 104086919 B CN104086919 B CN 104086919B
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solution
parts
lanthanum
electric power
high temperature
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CN104086919A (en
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金立胜
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ANHUI NINGGUO HIGH-NEW PIPE INDUSTRY Co Ltd
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ANHUI NINGGUO HIGH-NEW PIPE INDUSTRY Co Ltd
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Abstract

The invention discloses a kind of high temperature resistant electric power protection pipe, its raw materials by weight portion includes: polrvinyl chloride 100 150 parts, chliorinated polyvinyl chloride 50 100 parts, glass microballoon 5 15 parts, acrylics rubber 10 25 parts, castor oil acid lanthanum 26 parts, protocatechuic acid lanthanum 15 parts, Synergistic stabilizer 25 parts, heat-proof modifier 20 30 parts, Tissuemat E 0.5 1.5 parts, modified Anhydrite 5 30 parts, composite toughening modifier 10 20 parts, fire retardant 20 60 parts.Heretofore described high temperature resistant electric power protection pipe has the heat-resisting quantity of excellence, has good corrosion resistance, resistance to ag(e)ing, anti-flammability, high mechanical strength and toughness simultaneously, extends the service life of high temperature resistant electric power protection pipe.

Description

A kind of high temperature resistant electric power protection pipe
Technical field
The present invention relates to electric power protection Manifold technology field, particularly relate to a kind of high temperature resistant electric power protection pipe.
Background technology
Polrvinyl chloride (PVC) is the thermal plasticity high polymer generated by polyreaction by Vinyl Chloride Monomer, owing to it has There are excellent flame retardancy, wear resistence, resistance to chemical corrosion, comprehensive physical, the product transparency, goods electrical insulating property etc. Performance, and it is widely used in the fields such as chemical industry, material, electric power.At present, due to the electrical insulating property that it is good, extensively should As electric power protection pipe, but become fragile owing to the PVC of hard exists low temperature, in the course of processing to thermo-responsive, poor heat stability, Different degraded, strain sensitive can be caused when being heated, after deformation can not the shortcoming such as recovery completely, current electric power protection pipe exists The aspect such as thermostability and intensity there is also the biggest deficiency, it addition, the heat stabilizer added in the hot procedure of PVC may Containing poisonous composition, the material made can be harmful, to environment, therefore, a series of nontoxic by adding Additive, the PVC high temperature resistant electric power protection pipe preparing good combination property is current key issue.
Summary of the invention
In order to solve technical problem present in background technology, the present invention proposes a kind of high temperature resistant electric power protection pipe, its Having the resistance to elevated temperatures of excellence, protection pipe has the impact strength of excellence, comprcssive strength, corrosion resistance, anti-flammability also simultaneously And inwall coefficient of friction is little, lightweight, construction costs is low, service life is long.
Proposing a kind of high temperature resistant electric power protection pipe in the present invention, its raw materials by weight portion includes: polrvinyl chloride 100- 150 parts, chliorinated polyvinyl chloride 50-100 part, glass microballoon 5-15 part, acrylics rubber 10-25 part, castor oil acid lanthanum 2-6 Part, protocatechuic acid lanthanum 1-5 part, Synergistic stabilizer 2-5 part, heat-proof modifier 20-30 part, Tissuemat E 0.5-1.5 part, modified length Stone 5-30 part, composite toughening modifier 10-20 part, fire retardant 20-60 part;
Described castor oil acid lanthanum is prepared according to following technique: respectively by molten to Lanthanum (III) nitrate, sodium hydroxide and castor oil acid In polar organic solvent, form solution A, solution B, solution C respectively;Solution A and solution C it is sequentially added in there-necked flask, It is stirred and heated to 60-80 DEG C of then insulated and stirred 2-3h formation solution D, after solution B being joined in solution D, through filtering, washing Wash, be dried to obtain described castor oil acid lanthanum;
Described protocatechuic acid lanthanum is prepared according to following technique: protocatechuic acid joins three mouthfuls equipped with dehydrated alcohol Flask is heated to add after 45-60 DEG C the saline solution of lanthanum, after stirring 2-3h, adds sodium hydroxide solution stirring 30-50min After, it is cooled to room temperature, through sucking filtration, washs, be dried to obtain described protocatechuic acid lanthanum;
Described composite toughening modifier is prepared according to following technique: added by the nano-calcium carbonate serosity of 500-800 part Enter in jacket reactor, be heated to 60-100 DEG C stirring and being passed through under recirculated water state, form solution E;Weigh the breast of 3-5 part Agent is dissolved and is dispersed in 50-100ml water, forms solution F after being heated to 60-80 DEG C;Solution F is joined in solution E, stirring After 0.5-2h, adding the polyacrylate dispersion that dry weight is 50-200 part in jacket reactor, stirring is incubated sucking filtration after 3-5h, Described composite toughening modifier will be obtained after filter residue and drying;
According to the ratio of weight and number of above-mentioned each raw material, prepare high temperature resistant electric power protection pipe according to following technique:
S1, the temperature of regulation high-speed mixer are 80-105 DEG C, add the most mixed by polrvinyl chloride and chliorinated polyvinyl chloride After conjunction machine mixing 10-15min, it is simultaneously introduced glass microballoon, acrylics rubber, castor oil acid lanthanum, protocatechuic acid lanthanum, works in coordination with Stabilizer, heat-proof modifier, Tissuemat E, modified Anhydrite, composite toughening modifier, fire retardant, obtain after mixing 30-50min Compound;
S2, mill temperature is set to 140-150 DEG C, adds the compound obtained in S1, after mixing 15-30min, make a call to three Jiao Bao, thin logical 5-8 time, obtain mixing materials after being cooled to 50-65 DEG C;
S3, the mixing materials described in S2 is extruded by mould through double screw extruder.
Preferably, its raw materials by weight portion includes: polrvinyl chloride 110-130 part, chliorinated polyvinyl chloride 70-90 part, glass Glass microballon 10-12 part, acrylics rubber 16-22 part, castor oil acid lanthanum 3-5 part, protocatechuic acid lanthanum 3-4.5 part, collaborative steady Determine agent 3-4 part, heat-proof modifier 25-28 part, Tissuemat E 0.9-1.3 part, modified Anhydrite 15-21 part, composite toughening modifier 13-17 part, fire retardant 35-57 part.
Preferably, its raw materials by weight portion includes: polrvinyl chloride 120 parts, chliorinated polyvinyl chloride 82 parts, glass microballoon 11 Part, acrylics rubber 18 parts, castor oil acid lanthanum 4.5 parts, protocatechuic acid lanthanum 4 parts, Synergistic stabilizer 3.5 parts, heat resistance modified Agent 27 parts, Tissuemat E 1.1 parts, modified Anhydrite 18 parts, composite toughening modifier 15 parts, fire retardant 42 parts.
Preferably, its raw material composition also includes that the coloring agent of 1-5 part, described coloring agent are organic dyestuff or without engine dyeing Material, described organic dyestuff is chrome yellow or titanium ultramarine.
Preferably, described polar organic solvent be absolute methanol, dehydrated alcohol, without one or more in water glycol Combination;In described solution A, the substance withdrawl syndrome of Lanthanum (III) nitrate is 0.05-0.15mol/L;The thing of sodium hydroxide in described solution B The amount concentration of matter is 0.1-0.15mol/L;In described solution C, the substance withdrawl syndrome of castor oil acid is 0.2-0.4mol/L;Will When solution B joins in solution D, dropping per second 1 time.
Preferably, in the preparation process of castor oil acid lanthanum, the solution A of addition, solution C, solution B solute in there-necked flask The amount of material be 1:1:1.5-2.
Preferably, in the preparation process of protocatechuic acid lanthanum, the saline solution of described lanthanum is the ethanol solution of Lanthanum (III) nitrate, described In the ethanol solution of Lanthanum (III) nitrate, the substance withdrawl syndrome of Lanthanum (III) nitrate is 1-5mol/L, sodium hydroxide in described sodium hydroxide solution Substance withdrawl syndrome is 0.5-1mol/L, and rate of addition when sodium hydroxide solution is added drop-wise in there-necked flask is 2-3 time per second.
Preferably, in the preparation process of composite toughening modifier, described emulsifying agent be sodium stearate, calcium stearate, ten The combination of one or more in dialkyl benzene sulfonic acids sodium, calcium dodecyl benzene sulfonate.
Preferably, described heat-proof modifier is the terpolymer of N-phenylmaleimide, styrene, acrylonitrile;Institute Stating fire retardant is ZnSiO3With Mg (OH)2Compositions, and ZnSiO3: Mg (OH)2For 1:3-10.
Preferably, described Synergistic stabilizer is tetramethylolmethane, calcium stearate, zinc stearate, epoxy soybean oil, Ca Zn composite The combination of one or more in stabilizer.
The present invention have selected the rare-earth stabilizer of two kinds of new non-toxic efficients and to the addition of Synergistic stabilizer steady as heat Determine agent, improve material thermostability in the course of processing, reduce polrvinyl chloride and the degree of chliorinated polyvinyl chloride chain rupture, reduce Crosslinking, retains original machinery and physical property, has played the performance of each stabilizer simultaneously, add the heat of PVC base system Stability.
Have employed in the present invention that nano-calcium carbonate slurry is directly modified obtaining by polyacrylate dispersion compound changes Property agent, on the one hand, effectively reduce Nano particles of calcium carbonate surface can, it is achieved that the transformation of Hydrophile-Lipophile, improve polychlorostyrene The compatibility between ethylene matrix and nano-calcium carbonate, improves interfacial adhesion, when composite is by External Force Acting, and can Effectively stress is evenly spread in PVC base system, to stress sufficiently large time, the inorganic nano-particle in material is received Rice calcium carbonate produces plastic deformation as stress raiser, induction PVC base system, produces big micro-crack and plastic deformation, Absorb substantial amounts of impact energy, embody the toughening effect of excellence;On the other hand, owing to the rigidity of calcium carbonate modifier own is strong, Being enclosed with good dispersion after polyacrylate, disperse more uniform in PVC base system, particle divides with PVC base system The interface cohesion effect of son strengthens, and the bending modulus of compound particle increases;On the other hand, after adding modifying agent, polyvinyl chloride-based In body, composite modified particle increases, and the spacing between particle reduces accordingly, terminates crackle to a certain extent, prevents crackle Extension, also can cause crazing simultaneously, improves the toughness of material, and impact strength is greatly enhanced, and obtains the resistance to height of good combination property Temperature electric power protection pipe.
The product performance index of heretofore described high temperature resistant electric power protection pipe and the test index of embodiment such as table 1 institute Show.
The product performance index of table 1 high temperature resistant electric power protection pipe of the present invention and the test index of embodiment
Project Product performance index Embodiment
Density (g/cm3) 1.49-1.65 1.50-1.60
Specific insulation (Ω m) 1.0×1011 1.0×1011
Longitudinal rebound degree ≤ 5% ≤ 5.2%
Vicat softening temperature (DEG C) ≥93 ≥94.1
Falling weight impact test 9/10 passes through 9/10 passes through
Flatten shape (flattening to the 1/2 of caliber) Crack-free Crack-free
The coefficient of sliding friction < 0.35 < 0.33
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail, it should be appreciated that embodiment is served only for this is described Bright rather than be used for limiting the invention, any made on the basis of the present invention amendment, equivalent etc. is all at this In bright protection domain.
High temperature resistant electric power protection pipe disclosed in this invention, in each embodiment, the parts by weight of each component are as shown in table 2.
Table 2 is the parts by weight of the high temperature resistant each component of electric power protection pipe in each embodiment
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
Polrvinyl chloride 120 100 150 132
Chliorinated polyvinyl chloride 82 100 50 75
Glass microballoon 11 5 15 7
Acrylics rubber 18 10 25 13
Castor oil acid lanthanum 4.5 2 6 5
Protocatechuic acid lanthanum 4 5 1 3
Synergistic stabilizer 3.5 2 5 3
Heat-proof modifier 27 30 20 23
Tissuemat E 1.1 1.5 0.5 0.8
Modified Anhydrite 18 5 30 14
Composite toughening modifier 15 20 10 12
Fire retardant 42 20 60 35
Embodiment 1
In high temperature resistant electric power protection pipe of the present invention, its raw material forms as shown in embodiment 1 in table 1, wherein, also includes The coloring agent of 1 part, described coloring agent is organic dyestuff, and described organic dyestuff is chrome yellow;Described heat-proof modifier is N-phenyl horse Carry out the terpolymer of acid imide, styrene, acrylonitrile;Described fire retardant is ZnSiO3With Mg (OH)2Compositions, and ZnSiO3: Mg (OH)2For 1:3;Described Synergistic stabilizer is calcium-zinc composite stabilizing agent;
Described castor oil acid lanthanum is prepared according to following technique: respectively by 0.025mol Lanthanum (III) nitrate, 0.05mol hydroxide Sodium and 0.1mol castor oil acid are dissolved in 500ml dehydrated alcohol, form solution A, solution B, solution C respectively;In there-necked flask Being sequentially added into 80ml solution A and 20ml solution C, after being stirred and heated to 60 DEG C, insulated and stirred 2h forms solution D, by 60ml solution B Join in solution D with the speed of dropping per second 1 time, filter, after filtrate is steamed ethanol on a rotary evaporator, use distilled water Wash 5 times, washed powder is placed in thermostatic drying chamber and dries under the conditions of 50 DEG C, obtain described castor oil acid lanthanum;
Described protocatechuic acid lanthanum is prepared according to following technique: 0.1mol protocatechuic acid is joined equipped with 100ml without The there-necked flask of water-ethanol is heated to add after 45 DEG C the ethanol solution of the Lanthanum (III) nitrate of 100ml 1mol/L, after stirring 2h, with The speed of 2 times per second adds the sodium hydroxide solution reaction 50min of 250ml 0.5mol/L, is cooled to room temperature, and sucking filtration, by filtering residue With distilled water wash 5 times, natural drying obtains described protocatechuic acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate serosity of 500 parts are added folder In set reactor, it is heated to 60 DEG C stirring and being passed through under recirculated water state, forms solution E;The stearic acid sodium weighing 3.2 parts is molten Solution is dispersed in 60ml water, forms solution F after being heated to 80 DEG C;Solution F is joined in solution E, after stirring reaction 2h, Xiang Jia Set reactor adds the polyacrylate dispersion that dry weight is 50 parts, sucking filtration after stirring insulation 3h, will obtain after filtering residue natural drying To described composite toughening modifier;
According to the ratio of weight and number of raw material each in embodiment 1 in table 2, prepare high temperature resistant electric power protection according to following technique Pipe:
S1, the temperature of regulation high-speed mixer are 80 DEG C, after adding polrvinyl chloride and chliorinated polyvinyl chloride mixing 10min, Be simultaneously introduced glass microballoon, acrylics rubber, castor oil acid lanthanum, protocatechuic acid lanthanum, Synergistic stabilizer, heat-proof modifier, Tissuemat E, modified Anhydrite, composite toughening modifier, fire retardant, chrome yellow, obtain compound after mixing 30min;
S2, mill temperature is set to 150 DEG C, adds the compound obtained in S1, after mixing 15min, play triangle bag, thin Logical 5 times, after being cooled to 50 DEG C, obtain mixing materials;
S3, the mixing materials described in S2 is extruded by mould through double screw extruder.
Embodiment 2
In high temperature resistant electric power protection pipe of the present invention, its raw material forms as shown in embodiment 2 in table 1, wherein, also includes The coloring agent of 5 parts, described coloring agent is inorganic dyestuff;Described heat-proof modifier is N-phenylmaleimide, styrene, propylene The terpolymer of nitrile;Described fire retardant is ZnSiO3With Mg (OH)2Compositions, and ZnSiO3: Mg (OH)2For 1:10;Described Synergistic stabilizer is tetramethylolmethane and zinc stearate;
Described castor oil acid lanthanum is prepared according to following technique: 0.015mol Lanthanum (III) nitrate is dissolved in 100ml absolute methanol In, form solution A, 0.03mol sodium hydroxide is dissolved in 200ml absolute methanol formation solution B, by molten for 0.1mol castor oil acid Solution C is formed in the absolute methanol of 250ml;Being sequentially added into 40ml solution A and 15ml solution C in there-necked flask, stirring adds Heat forms solution D to insulated and stirred 3h after 80 DEG C, joins in solution D by 80ml solution B with the speed of dropping per second 1 time, mistake Filter, after on a rotary evaporator filtrate is steamed methanol, with distilled water wash 4 times, is placed on freeze-day with constant temperature by washed powder Case is dried under the conditions of 35 DEG C, obtains described castor oil acid lanthanum;
Described protocatechuic acid lanthanum is prepared according to following technique: 0.5mol protocatechuic acid is joined equipped with 100ml without The ethanol solution of the Lanthanum (III) nitrate of 10ml5mol/L is added, after stirring 3h, with often after the there-necked flask of water-ethanol is heated to 60 DEG C After the second speed of 3 times adds the sodium hydroxide solution reaction 30min of 120ml1mol/L, it is cooled to room temperature, sucking filtration, filtering residue is used Distilled water wash 5 times, natural drying obtains described protocatechuic acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate serosity of 800 parts are added folder In set reactor, it is heated to 100 DEG C stirring and being passed through under recirculated water state, forms solution E;Weigh the calcium stearate and 1 of 2 parts The dodecylbenzene sodium sulfonate of part dissolves and is dispersed in 50ml water, forms solution F after being heated to 60 DEG C;Solution F is joined molten In liquid E, after stirring reaction 1h, in jacket reactor, add the polyacrylate dispersion that dry weight is 165 parts, take out after insulation 4.5h Filter, obtains described composite toughening modifier by after filtering residue natural drying;
According to the ratio of weight and number of raw material each in embodiment 2 in table 2, prepare high temperature resistant electric power protection according to following technique Pipe:
S1, the temperature of regulation high-speed mixer are 105 DEG C, after adding polrvinyl chloride and chliorinated polyvinyl chloride mixing 15min, Be simultaneously introduced glass microballoon, acrylics rubber, castor oil acid lanthanum, protocatechuic acid lanthanum, Synergistic stabilizer, heat-proof modifier, Tissuemat E, modified Anhydrite, composite toughening modifier, fire retardant, coloring agent, obtain compound after mixing 45min;
S2, mill temperature is set to 140 DEG C, adds the compound obtained in S1, after mixing 30min, play triangle bag, thin Logical 8 times, after being cooled to 65 DEG C, obtain mixing materials;
S3, the mixing materials described in S2 is extruded by mould through double screw extruder.
Embodiment 3
High temperature resistant electric power protection pipe of the present invention, its raw material forms as shown in embodiment 3 in table 1, wherein, also includes 3 The coloring agent of part, described coloring agent is organic dyestuff, and described organic dyestuff uses titanium ultramarine;Described heat-proof modifier is N-phenyl Maleimide, styrene, the terpolymer of acrylonitrile;Described fire retardant is ZnSiO3With Mg (OH)2Compositions, and ZnSiO3: Mg (OH)2For 1:6;Described Synergistic stabilizer is tetramethylolmethane, calcium stearate and calcium-zinc composite stabilizing agent;
Described castor oil acid lanthanum is prepared according to following technique: 0.01mol Lanthanum (III) nitrate is dissolved in 100ml without water glycol Middle formation solution A, the sodium hydroxide of 0.02mol is dissolved in 200ml without in water glycol formed solution B, by the Semen Ricini of 0.03mol Oleic acid be dissolved in 100ml without in water glycol formed solution C;60ml solution A and 20ml solution it is sequentially added in there-necked flask C, after being stirred and heated to 68 DEG C, insulated and stirred 2.1h forms solution D, 85ml solution B is joined with the speed of dropping per second 1 time In solution D, after filtrate is steamed ethylene glycol on a rotary evaporator, with distilled water wash 2 times, washed powder is placed on perseverance Temperature drying baker is dried under the conditions of 32 DEG C, obtains described castor oil acid lanthanum;
Described protocatechuic acid lanthanum is prepared according to following technique: 0.2mol protocatechuic acid is joined equipped with 100ml without The ethanol solution of the Lanthanum (III) nitrate of 75ml3mol/L is added after the there-necked flask of water-ethanol is heated to 52 DEG C, after stirring 2-7h, with After the speed of 2 times per second adds the sodium hydroxide solution reaction 45min of 200ml0.75mol/L, it is cooled to room temperature, sucking filtration, will filter Slag distilled water wash 5 times, natural drying obtains described protocatechuic acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate serosity of 660 parts are added folder In set reactor, it is heated to 76 DEG C stirring and being passed through under recirculated water state, forms solution E;Weigh the detergent alkylate sulphur of 5 parts Acid sodium dissolves and is dispersed in 100ml water, forms solution F after being heated to 72 DEG C;Solution F is joined in solution E, stirring reaction After 0.6h, in jacket reactor, add the polyacrylate dispersion that dry weight is 120 parts, be incubated sucking filtration after 3.2h, by filtering residue certainly So obtain described composite toughening modifier after drying;
According to the ratio of weight and number of raw material each in embodiment 3 in table 2, prepare high temperature resistant electric power protection according to following technique Pipe:
S1, the temperature of regulation high-speed mixer are 90 DEG C, after adding polrvinyl chloride and chliorinated polyvinyl chloride mixing 11min, Be simultaneously introduced glass microballoon, acrylics rubber, castor oil acid lanthanum, protocatechuic acid lanthanum, Synergistic stabilizer, heat-proof modifier, Tissuemat E, modified Anhydrite, composite toughening modifier, fire retardant, titanium ultramarine, obtain compound after mixing 50min;
S2, mill temperature is set to 146 DEG C, adds the compound obtained in S1, after mixing 22min, play triangle bag, thin Logical 6 times, after being cooled to 65 DEG C, obtain mixing materials;
S3, the mixing materials described in S2 is extruded by mould through double screw extruder.
Embodiment 4
High temperature resistant electric power protection pipe of the present invention, its raw material forms as shown in embodiment 4 in table 1, wherein said Semen Ricini Oleic acid lanthanum is prepared according to following technique: Lanthanum (III) nitrate, sodium hydroxide and castor oil acid are dissolved in polar organic solvent respectively, Form solution A, solution B, solution C respectively;In there-necked flask, it is sequentially added into solution A and solution C, is stirred and heated to 60 DEG C then Insulated and stirred 2.3h forms solution D, after solution B being joined in solution D, through filtering, wash, be dried to obtain described castor oil acid Lanthanum;
Described protocatechuic acid lanthanum is prepared according to following technique: protocatechuic acid joins three mouthfuls equipped with dehydrated alcohol The saline solution of lanthanum is added after flask is heated to 60 DEG C, after stirring 2.6h, after adding sodium hydroxide solution stirring 50min, cooling To room temperature, through sucking filtration, wash, be dried to obtain described protocatechuic acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate serosity of 800 parts are added folder In set reactor, it is heated to 100 DEG C stirring and being passed through under recirculated water state, forms solution E;Weigh the emulsifying agent dissolving of 3 parts It is dispersed in 100ml water, after being heated to 80 DEG C, forms solution F;Solution F is joined in solution E, after stirring 2h, anti-to chuck Answer and still adds the polyacrylate dispersion that dry weight is 200 parts, sucking filtration after stirring insulation 5h, described multiple by obtaining after filter residue and drying Close plasticized modifier;
According to the ratio of weight and number of embodiment 4 in table 1, prepare high temperature resistant electric power protection pipe according to following technique:
S1, the temperature of regulation high-speed mixer are 105 DEG C, and polrvinyl chloride and chliorinated polyvinyl chloride are added high-speed mixer Mixing 10min after, be simultaneously introduced glass microballoon, acrylics rubber, castor oil acid lanthanum, protocatechuic acid lanthanum, Synergistic stabilizer, Heat-proof modifier, Tissuemat E, modified Anhydrite, composite toughening modifier, fire retardant, obtain compound after mixing 30min;
S2, mill temperature is set to 150 DEG C, adds the compound obtained in S1, after mixing 15min, play triangle bag, thin Logical 8 times, after being cooled to 65 DEG C, obtain mixing materials;
S3, the mixing materials described in S2 is extruded by mould through double screw extruder.

Claims (7)

1. a high temperature resistant electric power protection pipe, it is characterised in that its raw materials by weight portion includes: polrvinyl chloride 100-150 part, Chliorinated polyvinyl chloride 50-100 part, glass microballoon 5-15 part, esters of acrylic acid rubber 10-25 part, castor oil acid lanthanum 2-6 part, former Catechuic acid lanthanum 1-5 part, Synergistic stabilizer 2-5 part, heat-proof modifier 20-30 part, Tissuemat E 0.5-1.5 part, modified Anhydrite 5- 30 parts, composite toughening modifier 10-20 part, fire retardant 20-60 part;
Described castor oil acid lanthanum is prepared according to following technique: respectively Lanthanum (III) nitrate, sodium hydroxide and castor oil acid are dissolved in pole In property organic solvent, form solution A, solution B, solution C respectively;Solution A and solution C it is sequentially added into, stirring in there-necked flask It is heated to 60-80 DEG C of then insulated and stirred 2-3h formation solution D, after solution B is joined in solution D, through filtering, washing, does Dry obtain described castor oil acid lanthanum;
Described protocatechuic acid lanthanum is prepared according to following technique: protocatechuic acid joins the there-necked flask equipped with dehydrated alcohol In be heated to after 45-60 DEG C add the saline solution of lanthanum, after stirring 2-3h, after adding sodium hydroxide solution stirring 30-50min, cold But arrive room temperature, through sucking filtration, wash, be dried to obtain described protocatechuic acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate serosity of 500-800 part is added folder In set reactor, it is heated to 60-100 DEG C stirring and being passed through under recirculated water state, forms solution E;Weigh the emulsifying agent of 3-5 part Dissolving is dispersed in 50-100ml water, forms solution F after being heated to 60-80 DEG C;Solution F is joined in solution E, stirs 0.5- After 2h, in jacket reactor, add the polyacrylate dispersion that dry weight is 50-200 part, sucking filtration after stirring insulation 3-5h, will filter Slag obtains described composite toughening modifier after drying;
According to the ratio of weight and number of above-mentioned each raw material, prepare high temperature resistant electric power protection pipe according to following technique:
S1, the temperature of regulation high-speed mixer are 80-105 DEG C, and polrvinyl chloride and chliorinated polyvinyl chloride are added high-speed mixer After mixing 10-15min, it is simultaneously introduced glass microballoon, acrylics rubber, castor oil acid lanthanum, protocatechuic acid lanthanum, works in coordination with and stablize Agent, heat-proof modifier, Tissuemat E, modified Anhydrite, composite toughening modifier, fire retardant, mixed after mixing 30-50min Material;
S2, mill temperature is set to 140-150 DEG C, adds the compound obtained in S1, after mixing 15-30min, beat triangle Bag, thin logical 5-8 time, obtain mixing materials after being cooled to 50-65 DEG C;
S3, the mixing materials described in S2 is extruded by mould through double screw extruder;
In the preparation process of composite toughening modifier, described emulsifying agent is calcium stearate, dodecylbenzene sodium sulfonate, dodecane The combination of base benzenesulfonic acid calcium;
Described heat-proof modifier is the terpolymer of N-phenylmaleimide, styrene, acrylonitrile;Described fire retardant is ZnSiO3With Mg (OH)2Compositions, and ZnSiO3: Mg (OH)2For 1:3-10;
Described Synergistic stabilizer is the group of tetramethylolmethane, calcium stearate, zinc stearate, epoxy soybean oil, calcium-zinc composite stabilizing agent Close.
High temperature resistant electric power protection pipe the most according to claim 1, it is characterised in that its raw materials by weight portion includes: poly- Vinyl chloride 110-130 part, chliorinated polyvinyl chloride 70-90 part, glass microballoon 10-12 part, esters of acrylic acid rubber 16-22 part, castor Oleum Sesami acid lanthanum 3-5 part, protocatechuic acid lanthanum 3-4.5 part, Synergistic stabilizer 3-4 part, heat-proof modifier 25-28 part, Tissuemat E 0.9-1.3 part, modified Anhydrite 15-21 part, composite toughening modifier 13-17 part, fire retardant 35-57 part.
High temperature resistant electric power protection pipe the most according to claim 1 and 2, it is characterised in that its raw materials by weight portion includes: Polrvinyl chloride 120 parts, chliorinated polyvinyl chloride 82 parts, glass microballoon 11 parts, esters of acrylic acid rubber 18 parts, castor oil acid lanthanum 4.5 Part, protocatechuic acid lanthanum 4 parts, Synergistic stabilizer 3.5 parts, heat-proof modifier 27 parts, Tissuemat E 1.1 parts, modified Anhydrite 18 parts, multiple Close plasticized modifier 15 parts, fire retardant 42 parts.
4. according to the high temperature resistant electric power protection pipe according to any one of claim 1-2, it is characterised in that its raw material composition also wraps Including the coloring agent of 1-5 part, described coloring agent is organic dyestuff or inorganic dyestuff, and described organic dyestuff is chrome yellow or titanium green grass or young crops Blue.
5. according to the high temperature resistant electric power protection pipe according to any one of claim 1-2, it is characterised in that described polarity is organic molten Agent is absolute methanol, dehydrated alcohol, combination without one or more in water glycol;The material of Lanthanum (III) nitrate in described solution A Amount concentration be 0.05-0.15mol/L;In described solution B, the substance withdrawl syndrome of sodium hydroxide is 0.1-0.15mol/L;Institute Stating the substance withdrawl syndrome of castor oil acid in solution C is 0.2-0.4mol/L;When solution B is joined in solution D, dropping per second 1 time.
6. according to the high temperature resistant electric power protection pipe according to any one of claim 1-2, it is characterised in that at castor oil acid lanthanum In preparation process, in there-necked flask, the amount of the material of the solution A of addition, solution C, solution B solute is 1:1:1.5-2.
7. according to the high temperature resistant electric power protection pipe according to any one of claim 1-2, it is characterised in that at protocatechuic acid lanthanum In preparation process, the saline solution of described lanthanum is the ethanol solution of Lanthanum (III) nitrate, the thing of Lanthanum (III) nitrate in the ethanol solution of described Lanthanum (III) nitrate The amount concentration of matter is 1-5mol/L, and in described sodium hydroxide solution, the substance withdrawl syndrome of sodium hydroxide is 0.5-1mol/L, hydrogen Rate of addition when sodium hydroxide solution is added drop-wise in there-necked flask is 2-3 time per second.
CN201410326127.2A 2014-07-09 2014-07-09 A kind of high temperature resistant electric power protection pipe Expired - Fee Related CN104086919B (en)

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