CN104086919A - Heat-resisting power protection tube - Google Patents

Heat-resisting power protection tube Download PDF

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Publication number
CN104086919A
CN104086919A CN201410326127.2A CN201410326127A CN104086919A CN 104086919 A CN104086919 A CN 104086919A CN 201410326127 A CN201410326127 A CN 201410326127A CN 104086919 A CN104086919 A CN 104086919A
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solution
parts
power protection
lanthanum
electric power
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CN104086919B (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 heat-resisting power protection tube, comprising the following raw materials in parts by weight: 100-150 parts of polyvinyl chloride, 50-100 parts of chlorinated polyvinyl chloride, 5-15 parts of glass beads, 10-25 parts of acrylate rubber, 2-6 parts of ricinoleic acid lanthanum, 1-5 parts of protocatechuic acid lanthanum, 2-5 parts of a collaborative stabilizer, 20-30 parts of a heat-resisting modifier, 0.5-1.5 parts of polyethylene wax, 5-30 parts of modified feldspar, 10-20 parts of a composite toughening modifier and 20-60 parts of a fire retardant. The heat-resisting power protection tube disclosed by the invention has excellent high-temperature resistance and also has good corrosion resistance, ageing resistance and fire resistance, and high mechanical strength and tenacity, and the service life of the heat-resisting power protection tube is prolonged.

Description

A kind of high temperature resistant electric power protection pipe
Technical field
The present invention relates to electric power protection Manifold technology field, relate in particular to a kind of high temperature resistant electric power protection pipe.
Background technology
Polyvinyl chloride (PVC) is the thermal plasticity high polymer being generated by polyreaction by vinyl chloride monomer, due to it, there is the performances such as good flame retardancy, resistance to abrasion, resistance to chemical corrosion, comprehensive physical, the product transparency, goods electrical insulating property, and be widely used in the fields such as chemical industry, material, electric power.At present, due to its good electrical insulating property, be widely used and made electric power protection pipe, but because the PVC of hard exists low temperature to become fragile, in the course of processing to thermo-responsive, poor heat stability, while being heated, can cause different degradeds, strain sensitive, the shortcoming such as after distortion, can not recover completely, at aspects such as thermotolerance and intensity, also there is very large deficiency in current electric power protection pipe, in addition, the thermo-stabilizer adding in the hot procedure of PVC may contain poisonous composition, the material of making can be harmful, to environment, therefore, by adding a series of nontoxic additives, the high temperature resistant electric power protection pipe of PVC of preparing good combination property is current key issue.
Summary of the invention
In order to solve the technical problem existing in background technology; the present invention proposes a kind of high temperature resistant electric power protection pipe; it has excellent resistance to elevated temperatures, and while protective tube has excellent shock strength, ultimate compression strength, erosion resistance, flame retardant resistance and inwall frictional coefficient is little, lightweight, construction costs is low, long service life.
In the present invention, proposed a kind of high temperature resistant electric power protection pipe, its raw materials by weight portion comprises: polyvinyl chloride 100-150 part, chlorinated polyvinyl chloride 50-100 part, glass microballon 5-15 part, acrylics rubber 10-25 part, ricinolic acid lanthanum 2-6 part, Protocatechuic Acid lanthanum 1-5 part, Synergistic stabilizer 2-5 part, heat-proof modifier 20-30 part, polyethylene wax 0.5-1.5 part, modification feldspar 5-30 part, composite toughening modifier 10-20 part, fire retardant 20-60 part;
Described ricinolic acid lanthanum is prepared according to following technique: respectively lanthanum nitrate, sodium hydroxide and ricinolic acid are dissolved in polar organic solvent, form respectively solution A, solution B, solution C; In there-necked flask, add successively solution A and solution C, be stirred and heated to 60-80 ℃ then insulated and stirred 2-3h form solution D, after solution B is joined in solution D, after filtration, washing, dryly obtain described ricinolic acid lanthanum;
Described Protocatechuic Acid lanthanum is prepared according to following technique: Protocatechuic Acid is joined and in the there-necked flask that dehydrated alcohol is housed, be heated to the salts solution that adds lanthanum after 45-60 ℃, stir after 2-3h, add sodium hydroxide solution to stir after 30-50min, cool to room temperature, through suction filtration, washing, dryly obtain described Protocatechuic Acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate slurries of 500-800 part are added in jacket reactor, be heated to 60-100 ℃ stirring and pass under recirculated water state, form solution E; The emulsifiers dissolve that takes 3-5 part is dispersed in 50-100ml water, forms solution F after being heated to 60-80 ℃; Solution F being joined in solution E, stir after 0.5-2h, is the polyacrylate dispersion of 50-200 part to adding dry weight in jacket reactor, stirs suction filtration after insulation 3-5h, will after filter residue and drying, obtain described composite toughening modifier;
According to the ratio of weight and number of above-mentioned each raw material, according to following technique, prepare high temperature resistant electric power protection pipe:
The temperature of S1, adjusting high-speed mixer is 80-105 ℃, polyvinyl chloride and chlorinated polyvinyl chloride are added after high-speed mixer mixing 10-15min, add glass microballon, acrylics rubber, ricinolic acid lanthanum, Protocatechuic Acid lanthanum, Synergistic stabilizer, heat-proof modifier, polyethylene wax, modification feldspar, composite toughening modifier, fire retardant simultaneously, after mixing 30-50min, obtain compound;
S2, mill temperature is made as to 140-150 ℃, adds the compound obtaining in S1, after mixing 15-30min, beat triangle bag, thin-pass 5-8 time, obtain mixing materials after being cooled to 50-65 ℃;
S3, by the mixing materials described in S2 through twin screw extruder by mould extrusion molding.
Preferably, its raw materials by weight portion comprises: polyvinyl chloride 110-130 part, chlorinated polyvinyl chloride 70-90 part, glass microballon 10-12 part, acrylics rubber 16-22 part, ricinolic acid lanthanum 3-5 part, Protocatechuic Acid lanthanum 3-4.5 part, Synergistic stabilizer 3-4 part, heat-proof modifier 25-28 part, polyethylene wax 0.9-1.3 part, modification feldspar 15-21 part, composite toughening modifier 13-17 part, fire retardant 35-57 part.
Preferably, its raw materials by weight portion comprises: 120 parts of polyvinyl chloride, 82 parts of chlorinated polyvinyl chlorides, 11 parts of glass microballons, 18 parts of acrylics rubber, 4.5 parts of ricinolic acid lanthanums, 4 parts of Protocatechuic Acid lanthanums, 3.5 parts of Synergistic stabilizers, 27 parts of heat-proof modifiers, 1.1 parts of polyethylene waxs, 18 parts of modification feldspars, 15 parts of composite toughening modifiers, 42 parts of fire retardants.
Preferably, its raw material forms the tinting material that also comprises 1-5 part, and described tinting material is organic dye or inorganic dyestuff, and described organic dye is chrome yellow or titanium ultramarine.
Preferably, described polar organic solvent be anhydrous methanol, dehydrated alcohol, without one or more the combination in water glycol; In described solution A, the amount of substance concentration of lanthanum nitrate is 0.05-0.15mol/L; In described solution B, the amount of substance concentration of sodium hydroxide is 0.1-0.15mol/L; In described solution C, the amount of substance concentration of ricinolic acid is 0.2-0.4mol/L; When solution B is joined in solution D, dropping per second 1 time.
Preferably, in the preparation process of ricinolic acid lanthanum, the amount of substance of the solution A adding in there-necked flask, solution C, solution B solute is 1:1:1.5-2.
Preferably, in the preparation process of Protocatechuic Acid lanthanum, the salts solution of described lanthanum is the ethanolic soln of lanthanum nitrate, in the ethanolic soln of described lanthanum nitrate, the amount of substance concentration of lanthanum nitrate is 1-5mol/L, in described sodium hydroxide solution, the amount of substance concentration of sodium hydroxide 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 is one or more the combination in sodium stearate, calcium stearate, Sodium dodecylbenzene sulfonate, calcium dodecylbenzene sulphonate.
Preferably, described heat-proof modifier is the terpolymer of N-phenylmaleimide, vinylbenzene, vinyl cyanide; Described fire retardant is ZnSiO 3with Mg (OH) 2composition, and ZnSiO 3: Mg (OH) 2for 1:3-10.
Preferably, described Synergistic stabilizer is one or more the combination in tetramethylolmethane, calcium stearate, Zinic stearas, epoxy soybean oil, calcium-zinc composite stabilizing agent.
In the present invention, selected the rare-earth stabilizer of two kinds of new non-toxic efficients and added Synergistic stabilizer as thermo-stabilizer, improve the thermotolerance of material in the course of processing, reduced the degree of polyvinyl chloride and chlorinated polyvinyl chloride chain rupture, reduce crosslinked, retain original machinery and physicals, bring into play the performance of each stablizer simultaneously, increased the thermostability of PVC base system.
In the present invention, adopted polyacrylate dispersion directly nano-calcium carbonate slurry to be carried out to the composite modifier that modification obtains, on the one hand, the surface that effectively reduces Nano particles of calcium carbonate can, realized the transformation of hydrophilic-oleophylic, improved the consistency between PVC base system and nano-calcium carbonate, improved interfacial adhesion, when matrix material is subject to External Force Acting, can effectively stress equilibrium be distributed in PVC base system, to stress enough greatly time, inorganic nano-particle nano-calcium carbonate in material is as stress raiser, bring out PVC base system and produce plastic deformation, produce large tiny crack and viscous deformation, absorb a large amount of impact energys, embody excellent toughening effect, on the other hand, because the rigidity of calcium carbonate modifier own is strong, be enclosed with good dispersity after polyacrylic ester, disperse more evenly in PVC base system, the interface keying action of particle and PVC base system molecule strengthens, the modulus in flexure increase of composite particles, on the other hand, add after properties-correcting agent, in PVC base system, composite modified particle increases, spacing between particle reduces accordingly, stops to a certain extent crackle, prevents the expansion of crackle, also can cause crazing simultaneously, the toughness that improves material, shock strength significantly strengthens, and obtains the high temperature resistant electric power protection pipe of good combination property.
The product performance index of high temperature resistant electric power protection pipe described in the present invention and the test index of embodiment are as shown in table 1.
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/cm 3) 1.49-1.65 1.50-1.60
Volume specific resistance (Ω m) 1.0×10 11 1.0×10 11
Longitudinal rebound degree ≤5% ≤5.2%
Vicat softening temperature (℃) ≥93 ≥94.1
Falling weight impact test 9/10 passes through 9/10 passes through
Flatten shape (flatten to caliber 1/2) Crack-free Crack-free
The coefficient of sliding friction <0.35 <0.33
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail; should understand; embodiment is only for the present invention is described, rather than for the present invention is limited, and any modification of making on basis of the present invention, is equal to replacement etc. all in protection scope of the present invention.
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 high temperature resistant each component of electric power protection pipe in each embodiment
? Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
Polyvinyl chloride 120 100 150 132
Chlorinated polyvinyl chloride 82 100 50 75
Glass microballon 11 5 15 7
Acrylics rubber 18 10 25 13
Ricinolic 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
Polyethylene wax 1.1 1.5 0.5 0.8
Modification feldspar 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 in table 11, wherein, also comprises the tinting material of 1 part, and described tinting material is organic dye, and described organic dye is chrome yellow; Described heat-proof modifier is the terpolymer of N-phenylmaleimide, vinylbenzene, vinyl cyanide; Described fire retardant is ZnSiO 3with Mg (OH) 2composition, and ZnSiO 3: Mg (OH) 2for 1:3; Described Synergistic stabilizer is calcium-zinc composite stabilizing agent;
Described ricinolic acid lanthanum is prepared according to following technique: respectively 0.025mol lanthanum nitrate, 0.05mol sodium hydroxide and 0.1mol ricinolic acid are dissolved in 500ml dehydrated alcohol, form respectively solution A, solution B, solution C; In there-necked flask, add successively 80ml solution A and 20ml solution C, after being stirred and heated to 60 ℃, insulated and stirred 2h forms solution D, speed by 60ml solution B with dropping per second 1 time joins in solution D, filter, filtrate is steamed after ethanol on Rotary Evaporators, with distilled water wash 5 times, washed powder is placed in thermostatic drying chamber and is dried under 50 ℃ of conditions, obtain described ricinolic acid lanthanum;
Described Protocatechuic Acid lanthanum is prepared according to following technique: 0.1mol Protocatechuic Acid is joined and in the there-necked flask that 100ml dehydrated alcohol is housed, be heated to the ethanolic soln that adds the lanthanum nitrate of 100ml 1mol/L after 45 ℃, stir after 2h, the sodium hydroxide solution reaction 50min that adds 250ml 0.5mol/L with the speed of 2 times per second, cool to room temperature, suction filtration, by filter residue distilled water wash 5 times, seasoning obtains described Protocatechuic Acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate slurries of 500 parts are added in jacket reactor, be heated to 60 ℃ stirring and pass under recirculated water state, form solution E; Take the stearic acid sodium of 3.2 parts and dissolve and to be dispersed in 60ml water, form solution F after being heated to 80 ℃; Solution F is joined in solution E, after stirring reaction 2h, is the polyacrylate dispersion of 50 parts to adding dry weight in jacket reactor, stirs suction filtration after insulation 3h, will after filter residue seasoning, obtain described composite toughening modifier;
According to the ratio of weight and number of each raw material in embodiment in table 21, according to following technique, prepare high temperature resistant electric power protection pipe:
The temperature of S1, adjusting high-speed mixer is 80 ℃, add after polyvinyl chloride and chlorinated polyvinyl chloride mixing 10min, add glass microballon, acrylics rubber, ricinolic acid lanthanum, Protocatechuic Acid lanthanum, Synergistic stabilizer, heat-proof modifier, polyethylene wax, modification feldspar, composite toughening modifier, fire retardant, chrome yellow simultaneously, after mixing 30min, obtain compound;
S2, mill temperature is made as to 150 ℃, adds the compound obtaining in S1, after mixing 15min, beat triangle bag, thin-pass 5 times, obtain mixing materials after being cooled to 50 ℃;
S3, by the mixing materials described in S2 through twin screw extruder by mould extrusion molding.
Embodiment 2
In high temperature resistant electric power protection pipe of the present invention, its raw material forms as shown in embodiment in table 12, wherein, also comprises the tinting material of 5 parts, and described tinting material is inorganic dyestuff; Described heat-proof modifier is the terpolymer of N-phenylmaleimide, vinylbenzene, vinyl cyanide; Described fire retardant is ZnSiO 3with Mg (OH) 2composition, and ZnSiO 3: Mg (OH) 2for 1:10; Described Synergistic stabilizer is tetramethylolmethane and Zinic stearas;
Described ricinolic acid lanthanum is prepared according to following technique: 0.015mol lanthanum nitrate is dissolved in 100ml anhydrous methanol, form solution A, 0.03mol sodium hydroxide is dissolved in 200ml anhydrous methanol and forms solution B, 0.1mol ricinolic acid is dissolved in the anhydrous methanol of 250ml and forms solution C; In there-necked flask, add successively 40ml solution A and 15ml solution C, after being stirred and heated to 80 ℃, insulated and stirred 3h forms solution D, speed by 80ml solution B with dropping per second 1 time joins in solution D, filter, filtrate is steamed after methyl alcohol on Rotary Evaporators, with distilled water wash 4 times, washed powder is placed in thermostatic drying chamber and is dried under 35 ℃ of conditions, obtain described ricinolic acid lanthanum;
Described Protocatechuic Acid lanthanum is prepared according to following technique: 0.5mol Protocatechuic Acid is joined and in the there-necked flask that 100ml dehydrated alcohol is housed, be heated to the ethanolic soln that adds the lanthanum nitrate of 10ml5mol/L after 60 ℃, stir after 3h, with the speed of 3 times per second, add after the sodium hydroxide solution reaction 30min of 120ml1mol/L, cool to room temperature, suction filtration, by filter residue distilled water wash 5 times, seasoning obtains described Protocatechuic Acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate slurries of 800 parts are added in jacket reactor, be heated to 100 ℃ stirring and pass under recirculated water state, form solution E; The Sodium dodecylbenzene sulfonate that takes the calcium stearate of 2 parts and 1 part dissolves and is dispersed in 50ml water, forms solution F after being heated to 60 ℃; Solution F is joined in solution E, after stirring reaction 1h, is the polyacrylate dispersion of 165 parts to adding dry weight in jacket reactor, and suction filtration after insulation 4.5h, will obtain described composite toughening modifier after filter residue seasoning;
According to the ratio of weight and number of each raw material in embodiment in table 22, according to following technique, prepare high temperature resistant electric power protection pipe:
The temperature of S1, adjusting high-speed mixer is 105 ℃, add after polyvinyl chloride and chlorinated polyvinyl chloride mixing 15min, add glass microballon, acrylics rubber, ricinolic acid lanthanum, Protocatechuic Acid lanthanum, Synergistic stabilizer, heat-proof modifier, polyethylene wax, modification feldspar, composite toughening modifier, fire retardant, tinting material simultaneously, after mixing 45min, obtain compound;
S2, mill temperature is made as to 140 ℃, adds the compound obtaining in S1, after mixing 30min, beat triangle bag, thin-pass 8 times, obtain mixing materials after being cooled to 65 ℃;
S3, by the mixing materials described in S2 through twin screw extruder by mould extrusion molding.
Embodiment 3
High temperature resistant electric power protection pipe of the present invention, its raw material forms as shown in embodiment in table 13, wherein, also comprises the tinting material of 3 parts, and described tinting material is organic dye, and described organic dye adopts titanium ultramarine; Described heat-proof modifier is the terpolymer of N-phenylmaleimide, vinylbenzene, vinyl cyanide; Described fire retardant is ZnSiO 3with Mg (OH) 2composition, and ZnSiO 3: Mg (OH) 2for 1:6; Described Synergistic stabilizer is tetramethylolmethane, calcium stearate and calcium-zinc composite stabilizing agent;
Described ricinolic acid lanthanum is prepared according to following technique: 0.01mol lanthanum nitrate is dissolved in to 100ml without forming solution A in water glycol, the sodium hydroxide of 0.02mol is dissolved in to 200ml without forming solution B in water glycol, by the ricinolic acid of 0.03mol be dissolved in 100ml without forming solution C in water glycol; In there-necked flask, add successively 60ml solution A and 20ml solution C, after being stirred and heated to 68 ℃, insulated and stirred 2.1h forms solution D, speed by 85ml solution B with dropping per second 1 time joins in solution D, filtrate is steamed after ethylene glycol on Rotary Evaporators, with distilled water wash 2 times, washed powder is placed in thermostatic drying chamber and is dried under 32 ℃ of conditions, obtain described ricinolic acid lanthanum;
Described Protocatechuic Acid lanthanum is prepared according to following technique: 0.2mol Protocatechuic Acid is joined and in the there-necked flask that 100ml dehydrated alcohol is housed, be heated to the ethanolic soln that adds the lanthanum nitrate of 75ml3mol/L after 52 ℃, stir after 2-7h, with the speed of 2 times per second, add after the sodium hydroxide solution reaction 45min of 200ml0.75mol/L, cool to room temperature, suction filtration, by filter residue distilled water wash 5 times, seasoning obtains described Protocatechuic Acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate slurries of 660 parts are added in jacket reactor, be heated to 76 ℃ stirring and pass under recirculated water state, form solution E; Take the Sodium dodecylbenzene sulfonate of 5 parts and dissolve and to be dispersed in 100ml water, form solution F after being heated to 72 ℃; Solution F is joined in solution E, after stirring reaction 0.6h, is the polyacrylate dispersion of 120 parts to adding dry weight in jacket reactor, and suction filtration after insulation 3.2h, will obtain described composite toughening modifier after filter residue seasoning;
According to the ratio of weight and number of each raw material in embodiment in table 23, according to following technique, prepare high temperature resistant electric power protection pipe:
The temperature of S1, adjusting high-speed mixer is 90 ℃, add after polyvinyl chloride and chlorinated polyvinyl chloride mixing 11min, add glass microballon, acrylics rubber, ricinolic acid lanthanum, Protocatechuic Acid lanthanum, Synergistic stabilizer, heat-proof modifier, polyethylene wax, modification feldspar, composite toughening modifier, fire retardant, titanium ultramarine simultaneously, after mixing 50min, obtain compound;
S2, mill temperature is made as to 146 ℃, adds the compound obtaining in S1, after mixing 22min, beat triangle bag, thin-pass 6 times, obtain mixing materials after being cooled to 65 ℃;
S3, by the mixing materials described in S2 through twin screw extruder by mould extrusion molding.
Embodiment 4
High temperature resistant electric power protection pipe of the present invention, its raw material forms as shown in embodiment in table 14, wherein said ricinolic acid lanthanum is prepared according to following technique: respectively lanthanum nitrate, sodium hydroxide and ricinolic acid are dissolved in polar organic solvent, form respectively solution A, solution B, solution C; In there-necked flask, add successively solution A and solution C, be stirred and heated to 60 ℃ then insulated and stirred 2.3h form solution D, after solution B is joined in solution D, after filtration, washing, dryly obtain described ricinolic acid lanthanum;
Described Protocatechuic Acid lanthanum is prepared according to following technique: Protocatechuic Acid is joined and in the there-necked flask that dehydrated alcohol is housed, be heated to the salts solution that adds lanthanum after 60 ℃, stir after 2.6h, add sodium hydroxide solution to stir after 50min, cool to room temperature, through suction filtration, washing, dryly obtain described Protocatechuic Acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate slurries of 800 parts are added in jacket reactor, be heated to 100 ℃ stirring and pass under recirculated water state, form solution E; The emulsifiers dissolve that takes 3 parts is dispersed in 100ml water, forms solution F after being heated to 80 ℃; Solution F being joined in solution E, stir after 2h, is the polyacrylate dispersion of 200 parts to adding dry weight in jacket reactor, stirs suction filtration after insulation 5h, will after filter residue and drying, obtain described composite toughening modifier;
According to the ratio of weight and number of embodiment in table 14, according to following technique, prepare high temperature resistant electric power protection pipe:
The temperature of S1, adjusting high-speed mixer is 105 ℃, polyvinyl chloride and chlorinated polyvinyl chloride are added after high-speed mixer mixing 10min, add glass microballon, acrylics rubber, ricinolic acid lanthanum, Protocatechuic Acid lanthanum, Synergistic stabilizer, heat-proof modifier, polyethylene wax, modification feldspar, composite toughening modifier, fire retardant simultaneously, after mixing 30min, obtain compound;
S2, mill temperature is made as to 150 ℃, adds the compound obtaining in S1, after mixing 15min, beat triangle bag, thin-pass 8 times, obtain mixing materials after being cooled to 65 ℃;
S3, by the mixing materials described in S2 through twin screw extruder by mould extrusion molding.

Claims (10)

1. a high temperature resistant electric power protection pipe, it is characterized in that, its raw materials by weight portion comprises: polyvinyl chloride 100-150 part, chlorinated polyvinyl chloride 50-100 part, glass microballon 5-15 part, acrylics rubber 10-25 part, ricinolic acid lanthanum 2-6 part, Protocatechuic Acid lanthanum 1-5 part, Synergistic stabilizer 2-5 part, heat-proof modifier 20-30 part, polyethylene wax 0.5-1.5 part, modification feldspar 5-30 part, composite toughening modifier 10-20 part, fire retardant 20-60 part;
Described ricinolic acid lanthanum is prepared according to following technique: respectively lanthanum nitrate, sodium hydroxide and ricinolic acid are dissolved in polar organic solvent, form respectively solution A, solution B, solution C; In there-necked flask, add successively solution A and solution C, be stirred and heated to 60-80 ℃ then insulated and stirred 2-3h form solution D, after solution B is joined in solution D, after filtration, washing, dryly obtain described ricinolic acid lanthanum;
Described Protocatechuic Acid lanthanum is prepared according to following technique: Protocatechuic Acid is joined and in the there-necked flask that dehydrated alcohol is housed, be heated to the salts solution that adds lanthanum after 45-60 ℃, stir after 2-3h, add sodium hydroxide solution to stir after 30-50min, cool to room temperature, through suction filtration, washing, dryly obtain described Protocatechuic Acid lanthanum;
Described composite toughening modifier is prepared according to following technique: the nano-calcium carbonate slurries of 500-800 part are added in jacket reactor, be heated to 60-100 ℃ stirring and pass under recirculated water state, form solution E; The emulsifiers dissolve that takes 3-5 part is dispersed in 50-100ml water, forms solution F after being heated to 60-80 ℃; Solution F being joined in solution E, stir after 0.5-2h, is the polyacrylate dispersion of 50-200 part to adding dry weight in jacket reactor, stirs suction filtration after insulation 3-5h, will after filter residue and drying, obtain described composite toughening modifier;
According to the ratio of weight and number of above-mentioned each raw material, according to following technique, prepare high temperature resistant electric power protection pipe:
The temperature of S1, adjusting high-speed mixer is 80-105 ℃, polyvinyl chloride and chlorinated polyvinyl chloride are added after high-speed mixer mixing 10-15min, add glass microballon, acrylics rubber, ricinolic acid lanthanum, Protocatechuic Acid lanthanum, Synergistic stabilizer, heat-proof modifier, polyethylene wax, modification feldspar, composite toughening modifier, fire retardant simultaneously, after mixing 30-50min, obtain compound;
S2, mill temperature is made as to 140-150 ℃, adds the compound obtaining in S1, after mixing 15-30min, beat triangle bag, thin-pass 5-8 time, obtain mixing materials after being cooled to 50-65 ℃;
S3, by the mixing materials described in S2 through twin screw extruder by mould extrusion molding.
2. high temperature resistant electric power protection pipe according to claim 1; it is characterized in that, its raw materials by weight portion comprises: polyvinyl chloride 110-130 part, chlorinated polyvinyl chloride 70-90 part, glass microballon 10-12 part, acrylics rubber 16-22 part, ricinolic acid lanthanum 3-5 part, Protocatechuic Acid lanthanum 3-4.5 part, Synergistic stabilizer 3-4 part, heat-proof modifier 25-28 part, polyethylene wax 0.9-1.3 part, modification feldspar 15-21 part, composite toughening modifier 13-17 part, fire retardant 35-57 part.
3. high temperature resistant electric power protection pipe according to claim 1 and 2; it is characterized in that, its raw materials by weight portion comprises: 120 parts of polyvinyl chloride, 82 parts of chlorinated polyvinyl chlorides, 11 parts of glass microballons, 18 parts of acrylics rubber, 4.5 parts of ricinolic acid lanthanums, 4 parts of Protocatechuic Acid lanthanums, 3.5 parts of Synergistic stabilizers, 27 parts of heat-proof modifiers, 1.1 parts of polyethylene waxs, 18 parts of modification feldspars, 15 parts of composite toughening modifiers, 42 parts of fire retardants.
4. according to the high temperature resistant electric power protection pipe described in any one in claim 1-3, it is characterized in that, its raw material forms the tinting material that also comprises 1-5 part, and described tinting material is organic dye or inorganic dyestuff, and described organic dye is chrome yellow or titanium ultramarine.
5. according to the high temperature resistant electric power protection pipe described in any one in claim 1-4, it is characterized in that, described polar organic solvent is anhydrous methanol, dehydrated alcohol, without one or more the combination in water glycol; In described solution A, the amount of substance concentration of lanthanum nitrate is 0.05-0.15mol/L; In described solution B, the amount of substance concentration of sodium hydroxide is 0.1-0.15mol/L; In described solution C, the amount of substance concentration of ricinolic acid 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 described in any one in claim 1-5, it is characterized in that, in the preparation process of ricinolic acid lanthanum, the amount of substance of the solution A adding in there-necked flask, solution C, solution B solute is 1:1:1.5-2.
7. according to the high temperature resistant electric power protection pipe described in any one in claim 1-6; it is characterized in that; in the preparation process of Protocatechuic Acid lanthanum; the salts solution of described lanthanum is the ethanolic soln of lanthanum nitrate; in the ethanolic soln of described lanthanum nitrate, the amount of substance concentration of lanthanum nitrate is 1-5mol/L; in described sodium hydroxide solution, the amount of substance concentration of sodium hydroxide 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.
8. according to the high temperature resistant electric power protection pipe described in any one in claim 1-7; it is characterized in that; in the preparation process of composite toughening modifier, described emulsifying agent is one or more the combination in sodium stearate, calcium stearate, Sodium dodecylbenzene sulfonate, calcium dodecylbenzene sulphonate.
9. according to the high temperature resistant electric power protection pipe described in any one in claim 1-8, it is characterized in that, described heat-proof modifier is the terpolymer of N-phenylmaleimide, vinylbenzene, vinyl cyanide; Described fire retardant is ZnSiO 3with Mg (OH) 2composition, and ZnSiO 3: Mg (OH) 2for 1:3-10.
10. according to the high temperature resistant electric power protection pipe described in any one in claim 1-9, it is characterized in that, described Synergistic stabilizer is one or more the combination in tetramethylolmethane, calcium stearate, Zinic stearas, epoxy soybean oil, calcium-zinc composite stabilizing agent.
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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