CN107017476A - A kind of preparation method of the special friction reducer of lightning protection engineering - Google Patents
A kind of preparation method of the special friction reducer of lightning protection engineering Download PDFInfo
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- CN107017476A CN107017476A CN201710100718.1A CN201710100718A CN107017476A CN 107017476 A CN107017476 A CN 107017476A CN 201710100718 A CN201710100718 A CN 201710100718A CN 107017476 A CN107017476 A CN 107017476A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/18—Conductive material dispersed in non-conductive inorganic material the conductive material comprising carbon-silicon compounds, carbon or silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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Abstract
The invention discloses a kind of preparation method of the special friction reducer of lightning protection engineering, belong to the technical field of friction reducer.During the present invention first places into the soil rice husk, make rice husk initial breakdown, under alkalescence condition, dissolving removes lignin component, again using Butyl Phthalate as raw material, using polyvinyl alcohol and neopelex as template, under the conditions of oil bath, hydrolyze Butyl Phthalate, and hydrolysate is dispersed in powdered rice hulls, the nano titanium oxide produced using hydrolysis makes rice hull cellulose further degrade for catalyst, ultra-fine charing rice hull cellulose is made through charing again, then using acrylamide as monomer, it is filler to coordinate charring rice husk fiber, finally and cement mixing, produce the special friction reducer of lightning protection engineering.Gained friction reducer of the invention in use can effective protective grounding body, it is to avoid grounding body corrosion, while electric conductivity is excellent, lightning protection effect is good, efficiently solves the perishable grounding body metal of traditional friction reducer, and the problem of easily fail.
Description
Technical field
The invention discloses a kind of preparation method of the special friction reducer of lightning protection engineering, belong to the technology neck of friction reducer
Domain.
Background technology
Earthed system is the important step of whole lightning-protection system, and it connects day net and earth mat, overall to improve ground connection
The aerial drainage rate of net.The key technical indexes of lightning protection earthing system is grounding resistance, and grounding resistance is the smaller the better.In order to reduce ground connection
Resistance, typically using friction reducer.The function of friction reducer is exactly for reducing the grounding resistance of various earthing or grounding means.At present, drop resistance
Agent is made up of multiple components, such as wherein contains fine graphite, bentonite, curing agent, lubricant, electroconductive cement, so that as one
Plant good electric conductor.It is used between metallic ground body and soil, on the one hand can be in close contact with metallic ground body,
Form sufficiently large current flowing face；On the other hand it can permeate to surrounding soil, surrounding soil resistivity be reduced, in grounding body
Surrounding forms a gentle low resistance region of change.
But, due to containing conductive strong salinity in friction reducer, the corrosivity to metallic ground body is larger, and the time gets over
Long, the corrosivity to metallic ground body is continuously increased.Causing the electric conductivity of metallic ground body constantly reduces, under lightning protection effect
Drop.In order to avoid lightning strike accident, it is necessary to reinstall, construct again, human and material resources, financial resources consumption are big.The drop resistance used at present
Agent only considers the resistance reducing effect constructed in a short time, does not consider its chronicity, long-term effect, the feature of environmental protection.To find out its cause, being mainly it
Manufacturer is caters to user's request, and covet short-term resistance reducing effect, have ignored the stability of friction reducer, long-term effect and its right
The corrosion of steel grounding body and the pollution to environment.
Market needs a kind of method that reduction grounded resistance reducing agent corrodes to grounding body, so that it is long to obtain a kind of environmental friendly, anti-corrosive
Grounded resistance reducing agent is imitated, causing improves the corrosion to metallic ground body, antiseptic effect is improved, and grounding body service life is greatly prolonged.
The content of the invention
The technical problems to be solved by the invention are：For containing conductive strong salinity in traditional friction reducer, easily metal is connect
Ground body causes corrosion, declines grounding body electric conductivity, lightning protection effect reduction, and with salinity losses, friction reducer gradually fails
The problem of constitute good conductive there is provided a kind of three-dimensional net structure to make the formation of charring rice husk fiber and polyacrylamide by oneself
Property composite, add cement and be used as enhancing curing materials, the method that lightning protection engineering special friction reducer is made.The present invention
During rice husk is placed into the soil first, make rice husk initial breakdown, under alkalescence condition, dissolving removes lignin component, then with phthalein
Acid butyl ester is raw material, using polyvinyl alcohol and neopelex as template, under the conditions of oil bath, makes Butyl Phthalate water
Solution, and hydrolysate is dispersed in powdered rice hulls, the nano titanium oxide produced using hydrolysis is catalyst, in ultraviolet light
Under the conditions of rice hull cellulose is further degraded, then through charing be made ultra-fine charing rice hull cellulose, then using acrylamide as monomer,
Polymerization crosslinking formation tridimensional network, it is filler to coordinate charring rice husk fiber, finally and cement mixing, produces lightning protection work
The special friction reducer of journey.Gained friction reducer of the invention in use can effective protective grounding body, it is to avoid grounding body corrosion, simultaneously
Electric conductivity is excellent, and the lightning protection effect duration is long, efficiently solves the perishable grounding body metal of traditional friction reducer, and easily failure
The problem of.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
（1）400~500g rice husks are weighed, after gauze wrapped, in the deep 10~20cm soil of embedment, every 8~10h to soil table
30~50mL water is sprayed in face, and after after 10~20 days, gauze is taken out, and opens gauze, collects rice husk, and rice is washed with deionized
Shell 3~5 times, then the rice husk after washing is transferred in freezing crusher, after 10~20s of liquid nitrogen frozen, 15~30min is crushed,
The rice husk after crushing is collected, is placed in baking oven, is dried under the conditions of temperature is 105~110 DEG C to constant weight, obtains pretreatment rice husk
Powder；
（2）The above-mentioned gained pretreatment powdered rice hulls of 300~380g are weighed, pours into and fills 600~800mL mass fractions for 8~10% hydrogen
In the beaker of sodium hydroxide solution, then beaker immigration digital display tested the speed constant temperature blender with magnetic force, be 55~65 DEG C in temperature, rotating speed is
Under the conditions of 600~800r/min, constant temperature 3~5h of stirring reaction, then by material filtering in beaker, collect filter cake, use deionized water
Filter cake is washed until cleaning solution is in neutrality, then the filter cake after washing is transferred in baking oven, under the conditions of temperature is 105~110 DEG C
Dry to constant weight, obtain alkali leaching powdered rice hulls；
（3）Measure successively in 60~80mL butyl titanates, 120~150mL absolute ethyl alcohols, the three-necked flask for pouring into belt stirrer,
Under rotating speed is 300~500r/min stirrings, 50~80mL mass fractions are added dropwise into three-necked flask by dropping funel
For 10~12% acetic acid solutions, control is dripped off in 15~20min, treats completion of dropping, then addition 8~10g polyethylene into beaker
Alcohol, 1~2g neopelexes, the above-mentioned gained alkali leaching powdered rice hulls of 200~300g, then be by three-necked flask immigration temperature
In 120~125 DEG C of oil bath pans, 8~12h of constant temperature stirring reaction；
（4）Treat that above-mentioned reaction terminates, by material filtering in above-mentioned three-necked flask, collect filter cake, and wash with absolute ethyl alcohol filter cake 3
~5 times, then the filter cake after washing is placed in baking oven, 2~4h is dried under the conditions of temperature is 75~85 DEG C, then will be dried
Filter cake is evenly laid out in pallet, and it is 0.3~0.5mm to control tiling thickness, then with 80~100W uviol lamp prolonged exposure pallets
Middle 8~10h of filter cake, removes uviol lamp, and material in pallet is transferred in retort, under the conditions of temperature is 550~600 DEG C,
45~60min is carbonized, charring rice husk fiber is obtained；
（5）In four-hole boiling flask, the above-mentioned gained charring rice husk fibers of 35~45g are sequentially added, 45~55g acrylamides, 150~
180mL deionized waters, then four-hole boiling flask immigration digital display is tested the speed constant temperature blender with magnetic force, it is 75~80 DEG C in temperature, rotating speed is
Constant temperature stirs 20~30min, then addition 0.06~0.08gN, N '-methylene into four-hole boiling flask under the conditions of 500~600r/min
Bisacrylamide, 0.08~0.12g potassium peroxydisulfates, and nitrogen is passed through into four-hole boiling flask with 8~10mL/min speed, in nitrogen
Under guard mode, continue constant temperature 3~5h of stirring reaction, question response terminates, and 200~300mL deionizations are added into four-hole boiling flask
Water, adds 150~200g portland cements, continues at temperature for 55~65 DEG C, under the conditions of rotating speed is 600~800r/min,
Constant temperature stirring 30~45min of mixing, discharging produces the special friction reducer of lightning protection engineering.
The present invention application process be：Ground connection ditch is dug first, then counted by weight, 80~100 parts of present invention are taken
The special friction reducer of lightning protection engineering and 30~50 parts of water of gained are mixed into pasty state, and grounding body is propped away from ground connection ditch ditch
At 50~60mm of bottom, the friction reducer mixed is poured along grounding body and grounding body is covered tight, the thickness for controlling friction reducer is 60
~80mm, stands backfill after 6~8h of solidification, and after testing, the special friction reducer of lightning protection engineering obtained by the present invention exists
Underground is embedded under natural environment 2~3 years, its resistivity is 0.7~1.1 Ω/m, with long-term effect, resistance reducing effect is notable and right
Metallic ground body is corrosion-free.
The present invention is compared with other method, and advantageous effects are：
（1）The gained special friction reducer resistance reducing effect of lightning protection engineering of the invention is good, and without the strong salinity of electric conductivity, to metal
Grounding body is corrosion-free, improves the electric conductivity and lightning protection effect of grounding body；
（2）The gained special friction reducer of lightning protection engineering of the invention is nontoxic, and pollution-free, preparation technology is simple, and working procedure is simple,
Easy to use, required cost is low, is made and promotes the use of.
Embodiment
400~500g rice husks are weighed, after gauze wrapped, in the deep 10~20cm soil of embedment, every 8~10h to soil
30~50mL water is sprayed on surface, and after after 10~20 days, gauze is taken out, and opens gauze, collects rice husk, and be washed with deionized
Rice husk 3~5 times, then the rice husk after washing is transferred in freezing crusher, after 10~20s of liquid nitrogen frozen, crushing 15~
30min, collects the rice husk after crushing, is placed in baking oven, is dried under the conditions of temperature is 105~110 DEG C to constant weight, obtains pre- place
Manage powdered rice hulls；The above-mentioned gained pretreatment powdered rice hulls of 300~380g are weighed, it is 8~10% to pour into and fill 600~800mL mass fractions
In the beaker of sodium hydroxide solution, then beaker immigration digital display tested the speed constant temperature blender with magnetic force, in temperature be 55~65 DEG C, rotating speed
Under the conditions of 600~800r/min, constant temperature 3~5h of stirring reaction, then by material filtering in beaker, collect filter cake, use deionization
Water washing filter cake until the filter cake after washing then is transferred in baking oven by cleaning solution in neutrality, in temperature be 105~110 DEG C of conditions
Lower drying obtains alkali leaching powdered rice hulls to constant weight；60~80mL butyl titanates are measured successively, and 120~150mL absolute ethyl alcohols pour into band
In the three-necked flask of agitator, under rotating speed is 300~500r/min stirrings, dripped by dropping funel into three-necked flask
Plus 50~80mL mass fractions are 10~12% acetic acid solutions, control is dripped off in 15~20min, treats completion of dropping, then to beaker
Middle addition 8~10g polyvinyl alcohol, 1~2g neopelexes, 200~300g above-mentioned gained alkali leaching powdered rice hulls, then by three
Mouthful flask is moved into during temperature is 120~125 DEG C of oil bath pans, 8~12h of constant temperature stirring reaction；Treat that above-mentioned reaction terminates, by above-mentioned three
Material filtering in mouthful flask, collects filter cake, and washs with absolute ethyl alcohol filter cake 3~5 times, then the filter cake after washing is placed in into baking oven
In, 2~4h is dried under the conditions of temperature is 75~85 DEG C, then dried filter cake is evenly laid out in pallet, control tiling
Thickness is 0.3~0.5mm, then with 8~10h of filter cake in 80~100W uviol lamp prolonged exposure pallets, removes uviol lamp, and will support
Material is transferred in retort in disk, under the conditions of temperature is 550~600 DEG C, is carbonized 45~60min, is obtained charring rice husk fiber；
In four-hole boiling flask, sequentially add the above-mentioned gained charring rice husk fibers of 35~45g, 45~55g acrylamides, 150~180mL go from
Sub- water, then four-hole boiling flask immigration digital display is tested the speed constant temperature blender with magnetic force, it is 75~80 DEG C in temperature, rotating speed is 500~600r/
Constant temperature stirs 20~30min, then addition 0.06~0.08gN, N '-methylene bisacrylamide acyl into four-hole boiling flask under the conditions of min
Amine, 0.08~0.12g potassium peroxydisulfates, and nitrogen is passed through into four-hole boiling flask with 8~10mL/min speed, in nitrogen guard mode
Under, continue constant temperature 3~5h of stirring reaction, question response terminates, 200~300mL deionized waters are added into four-hole boiling flask, are added
150~200g portland cements, it is 55~65 DEG C to continue at temperature, and rotating speed is under the conditions of 600~800r/min, constant temperature stirring is mixed
30~45min is closed, discharging produces the special friction reducer of lightning protection engineering.
Example 1
400g rice husks are weighed, after gauze wrapped, in embedment depth 10cm soil, 30mL water is sprayed to soil surface every 8h, treats
After 10 days, gauze is taken out, gauze is opened, rice husk is collected, and rice husk is washed with deionized 3 times, then by the rice husk after washing
It is transferred in freezing crusher, after liquid nitrogen frozen 10s, crushes 15min, collect the rice husk after crushing, be placed in baking oven, Yu Wen
Spend to be dried under the conditions of 105 DEG C to constant weight, obtain pretreatment powdered rice hulls；The above-mentioned gained pretreatment powdered rice hulls of 300g are weighed, Sheng is poured into
Have in the beaker that 600mL mass fractions are 8% sodium hydroxide solution, then beaker immigration digital display is tested the speed constant temperature blender with magnetic force, in
Temperature is 55 DEG C, under the conditions of rotating speed is 600r/min, constant temperature stirring reaction 3h, then by material filtering in beaker, collects filter cake, is used
Deionized water washing filter cake until the filter cake after washing then is transferred in baking oven by cleaning solution in neutrality, in temperature be 105 DEG C of conditions
Lower drying obtains alkali leaching powdered rice hulls to constant weight；60mL butyl titanates are measured successively, and 120mL absolute ethyl alcohols pour into the three of belt stirrer
In mouth flask, under rotating speed is 300r/min stirrings, 50mL mass fractions are added dropwise into three-necked flask by dropping funel
For 10% acetic acid solution, control is dripped off in 15min, treats completion of dropping, then addition 8g polyvinyl alcohol, 1g dodecanes into beaker
Base benzene sulfonic acid sodium salt, the above-mentioned gained alkali leaching powdered rice hulls of 200g, then three-necked flask is moved into temperature in 120 DEG C of oil bath pans, constant temperature is stirred
Mix reaction 8h；Treat that above-mentioned reaction terminates, by material filtering in above-mentioned three-necked flask, collect filter cake, and wash with absolute ethyl alcohol filter
Cake 3 times, then the filter cake after washing is placed in baking oven, 2h is dried under the conditions of temperature is 75 DEG C, then dried filter cake is equal
Even to be laid in pallet, it is 0.3mm to control tiling thickness, then with filter cake 8h in 80W uviol lamp prolonged exposure pallets, is removed ultraviolet
Lamp, and material in pallet is transferred in retort, under the conditions of temperature is 550 DEG C, 45min is carbonized, charring rice husk fiber is obtained；
In four-hole boiling flask, the above-mentioned gained charring rice husk fibers of 35g are sequentially added, 45g acrylamides, 150mL deionized waters, then by four mouthfuls
Flask moves into digital display and tested the speed constant temperature blender with magnetic force, is 75 DEG C in temperature, rotating speed is that constant temperature is stirred under the conditions of 500r/min
20min, then add into four-hole boiling flask 0.06gN, N '-methylene-bisacrylamide, 0.08g potassium peroxydisulfates, and with 8mL/min
Speed is passed through nitrogen into four-hole boiling flask, under nitrogen guard mode, continues constant temperature stirring reaction 3h, and question response terminates, Xiang Si
200mL deionized waters are added in mouth flask, 150g portland cements are added, temperature are continued at for 55 DEG C, rotating speed is 600r/
Under the conditions of min, constant temperature stirring mixing 30min, discharging produces the special friction reducer of lightning protection engineering.
Ground connection ditch is dug first, then counted by weight, the special drop of the lightning protection engineering obtained by 80 parts of present invention is taken
Resist is mixed into pasty state with 30 parts of water, and grounding body is propped away from ground connection ditch bottom of trench 50mm, pours what is mixed along grounding body
Grounding body is simultaneously covered tight by friction reducer, and the thickness for controlling friction reducer is 60mm, backfill after solidification 6h is stood, through inspection
Survey, the present invention obtained by the special friction reducer of lightning protection engineering be embedded to underground under natural environment 2 years, its resistivity for 0.7 Ω/
M, with long-term effect, resistance reducing effect is notable and corrosion-free to metallic ground body.
Example 2
500g rice husks are weighed, after gauze wrapped, in embedment depth 20cm soil, 50mL water is sprayed to soil surface every 10h, treats
After 20 days, gauze is taken out, gauze is opened, rice husk is collected, and rice husk is washed with deionized 5 times, then by the rice husk after washing
It is transferred in freezing crusher, after liquid nitrogen frozen 20s, crushes 30min, collect the rice husk after crushing, be placed in baking oven, Yu Wen
Spend to be dried under the conditions of 110 DEG C to constant weight, obtain pretreatment powdered rice hulls；The above-mentioned gained pretreatment powdered rice hulls of 380g are weighed, Sheng is poured into
Have in the beaker that 800mL mass fractions are 10% sodium hydroxide solution, then beaker immigration digital display tested the speed constant temperature blender with magnetic force,
In temperature be 65 DEG C, under the conditions of rotating speed is 800r/min, constant temperature stirring reaction 5h, then by material filtering in beaker, collect filter cake,
Filter cake is washed with deionized until the filter cake after washing then is transferred in baking oven by cleaning solution in neutrality, in temperature be 110 DEG C of bars
Dried under part to constant weight, obtain alkali leaching powdered rice hulls；80mL butyl titanates are measured successively, and 150mL absolute ethyl alcohols pour into belt stirrer
In three-necked flask, under rotating speed is 500r/min stirrings, 80mL mass point is added dropwise into three-necked flask by dropping funel
Number is 12% acetic acid solution, and control is dripped off in 20min, treats completion of dropping, then addition 10g polyvinyl alcohol, 2g 12 into beaker
Sodium alkyl benzene sulfonate, 300g above-mentioned gained alkali leaching powdered rice hulls, then three-necked flask is moved into during temperature is 125 DEG C of oil bath pans, constant temperature
Stirring reaction 12h；Treat that above-mentioned reaction terminates, by material filtering in above-mentioned three-necked flask, collect filter cake, and washed with absolute ethyl alcohol
Filter cake 5 times, then the filter cake after washing is placed in baking oven, is that 4h is dried under the conditions of 85 DEG C in temperature, then by dried filter cake
It is evenly laid out in pallet, it is 0.5mm to control tiling thickness, then with filter cake 10h in 100W uviol lamp prolonged exposure pallets, is removed
Uviol lamp, and material in pallet is transferred in retort, under the conditions of temperature is 600 DEG C, 60min is carbonized, charring rice husk is obtained fine
Dimension；In four-hole boiling flask, the above-mentioned gained charring rice husk fibers of 45g are sequentially added, 55g acrylamides, 180mL deionized waters, then
Four-hole boiling flask immigration digital display is tested the speed constant temperature blender with magnetic force, is 80 DEG C in temperature, rotating speed is that constant temperature is stirred under the conditions of 600r/min
30min is mixed, then adds into four-hole boiling flask 0.08gN, N '-methylene-bisacrylamide, 0.12g potassium peroxydisulfates, and with 10mL/
Min speed is passed through nitrogen into four-hole boiling flask, under nitrogen guard mode, continues constant temperature stirring reaction 5h, and question response terminates, to
300mL deionized waters are added in four-hole boiling flask, 200g portland cements are added, temperature are continued at for 65 DEG C, rotating speed is 800r/
Under the conditions of min, constant temperature stirring mixing 45min, discharging produces the special friction reducer of lightning protection engineering.
Ground connection ditch is dug first, then counted by weight, the special drop of the lightning protection engineering obtained by 100 parts of present invention is taken
Resist is mixed into pasty state with 50 parts of water, and grounding body is propped away from ground connection ditch bottom of trench 60mm, pours what is mixed along grounding body
Grounding body is simultaneously covered tight by friction reducer, and the thickness for controlling friction reducer is 80mm, backfill after solidification 8h is stood, through inspection
Survey, the present invention obtained by the special friction reducer of lightning protection engineering be embedded to underground under natural environment 3 years, its resistivity for 1.1 Ω/
M, with long-term effect, resistance reducing effect is notable and corrosion-free to metallic ground body.
Example 3
450g rice husks are weighed, after gauze wrapped, in embedment depth 15cm soil, 40mL water is sprayed to soil surface every 9h, treats
After 15 days, gauze is taken out, gauze is opened, rice husk is collected, and rice husk is washed with deionized 4 times, then by the rice husk after washing
It is transferred in freezing crusher, after liquid nitrogen frozen 15s, crushes 22min, collect the rice husk after crushing, be placed in baking oven, Yu Wen
Spend to be dried under the conditions of 107 DEG C to constant weight, obtain pretreatment powdered rice hulls；The above-mentioned gained pretreatment powdered rice hulls of 340g are weighed, Sheng is poured into
Have in the beaker that 700mL mass fractions are 9% sodium hydroxide solution, then beaker immigration digital display is tested the speed constant temperature blender with magnetic force, in
Temperature is 60 DEG C, under the conditions of rotating speed is 700r/min, constant temperature stirring reaction 4h, then by material filtering in beaker, collects filter cake, is used
Deionized water washing filter cake until the filter cake after washing then is transferred in baking oven by cleaning solution in neutrality, in temperature be 17 DEG C of conditions
Lower drying obtains alkali leaching powdered rice hulls to constant weight；70mL butyl titanates are measured successively, and 135mL absolute ethyl alcohols pour into the three of belt stirrer
In mouth flask, under rotating speed is 400r/min stirrings, 65mL mass fractions are added dropwise into three-necked flask by dropping funel
For 11% acetic acid solution, control is dripped off in 17min, treats completion of dropping, then addition 9g polyvinyl alcohol, 1g dodecanes into beaker
Base benzene sulfonic acid sodium salt, the above-mentioned gained alkali leaching powdered rice hulls of 250g, then three-necked flask is moved into temperature in 123 DEG C of oil bath pans, constant temperature is stirred
Mix reaction 10h；Treat that above-mentioned reaction terminates, by material filtering in above-mentioned three-necked flask, collect filter cake, and wash with absolute ethyl alcohol filter
Cake 4 times, then the filter cake after washing is placed in baking oven, 3h is dried under the conditions of temperature is 80 DEG C, then dried filter cake is equal
Even to be laid in pallet, it is 0.4mm to control tiling thickness, then with filter cake 9h in 90W uviol lamp prolonged exposure pallets, is removed ultraviolet
Lamp, and material in pallet is transferred in retort, under the conditions of temperature is 575 DEG C, 52min is carbonized, charring rice husk fiber is obtained；
In four-hole boiling flask, the above-mentioned gained charring rice husk fibers of 40g are sequentially added, 50g acrylamides, 165mL deionized waters, then by four mouthfuls
Flask moves into digital display and tested the speed constant temperature blender with magnetic force, is 77 DEG C in temperature, rotating speed is that constant temperature is stirred under the conditions of 550r/min
25min, then add into four-hole boiling flask 0.07gN, N '-methylene-bisacrylamide, 0.1g potassium peroxydisulfates, and with 9mL/min speed
Rate is passed through nitrogen into four-hole boiling flask, under nitrogen guard mode, continues constant temperature stirring reaction 4h, and question response terminates, Xiang Sikou
250mL deionized waters are added in flask, 175g portland cements are added, temperature are continued at for 60 DEG C, rotating speed is 700r/min
Under the conditions of, constant temperature stirring mixing 37min, discharging produces the special friction reducer of lightning protection engineering.
Ground connection ditch is dug first, then counted by weight, the special drop of the lightning protection engineering obtained by 90 parts of present invention is taken
Resist is mixed into pasty state with 40 parts of water, and grounding body is propped away from ground connection ditch bottom of trench 55mm, pours what is mixed along grounding body
Grounding body is simultaneously covered tight by friction reducer, and the thickness for controlling friction reducer is 70mm, backfill after solidification 7h is stood, through inspection
Survey, the present invention obtained by the special friction reducer of lightning protection engineering be embedded to underground under natural environment 3 years, its resistivity for 0.9 Ω/
M, with long-term effect, resistance reducing effect is notable and corrosion-free to metallic ground body.
Claims (1)
1. a kind of preparation method of the special friction reducer of lightning protection engineering, it is characterised in that specifically preparation process is：
（1）400~500g rice husks are weighed, after gauze wrapped, in the deep 10~20cm soil of embedment, every 8~10h to soil table
30~50mL water is sprayed in face, and after after 10~20 days, gauze is taken out, and opens gauze, collects rice husk, and rice is washed with deionized
Shell 3~5 times, then the rice husk after washing is transferred in freezing crusher, after 10~20s of liquid nitrogen frozen, 15~30min is crushed,
The rice husk after crushing is collected, is placed in baking oven, is dried under the conditions of temperature is 105~110 DEG C to constant weight, obtains pretreatment rice husk
Powder；
（2）The above-mentioned gained pretreatment powdered rice hulls of 300~380g are weighed, pours into and fills 600~800mL mass fractions for 8~10% hydrogen
In the beaker of sodium hydroxide solution, then beaker immigration digital display tested the speed constant temperature blender with magnetic force, be 55~65 DEG C in temperature, rotating speed is
Under the conditions of 600~800r/min, constant temperature 3~5h of stirring reaction, then by material filtering in beaker, collect filter cake, use deionized water
Filter cake is washed until cleaning solution is in neutrality, then the filter cake after washing is transferred in baking oven, under the conditions of temperature is 105~110 DEG C
Dry to constant weight, obtain alkali leaching powdered rice hulls；
（3）Measure successively in 60~80mL butyl titanates, 120~150mL absolute ethyl alcohols, the three-necked flask for pouring into belt stirrer,
Under rotating speed is 300~500r/min stirrings, 50~80mL mass fractions are added dropwise into three-necked flask by dropping funel
For 10~12% acetic acid solutions, control is dripped off in 15~20min, treats completion of dropping, then addition 8~10g polyethylene into beaker
Alcohol, 1~2g neopelexes, the above-mentioned gained alkali leaching powdered rice hulls of 200~300g, then be by three-necked flask immigration temperature
In 120~125 DEG C of oil bath pans, 8~12h of constant temperature stirring reaction；
（4）Treat that above-mentioned reaction terminates, by material filtering in above-mentioned three-necked flask, collect filter cake, and wash with absolute ethyl alcohol filter cake 3
~5 times, then the filter cake after washing is placed in baking oven, 2~4h is dried under the conditions of temperature is 75~85 DEG C, then will be dried
Filter cake is evenly laid out in pallet, and it is 0.3~0.5mm to control tiling thickness, then with 80~100W uviol lamp prolonged exposure pallets
Middle 8~10h of filter cake, removes uviol lamp, and material in pallet is transferred in retort, under the conditions of temperature is 550~600 DEG C,
45~60min is carbonized, charring rice husk fiber is obtained；
（5）In four-hole boiling flask, the above-mentioned gained charring rice husk fibers of 35~45g are sequentially added, 45~55g acrylamides, 150~
180mL deionized waters, then four-hole boiling flask immigration digital display is tested the speed constant temperature blender with magnetic force, it is 75~80 DEG C in temperature, rotating speed is
Constant temperature stirs 20~30min, then addition 0.06~0.08gN, N '-methylene into four-hole boiling flask under the conditions of 500~600r/min
Bisacrylamide, 0.08~0.12g potassium peroxydisulfates, and nitrogen is passed through into four-hole boiling flask with 8~10mL/min speed, in nitrogen
Under guard mode, continue constant temperature 3~5h of stirring reaction, question response terminates, and 200~300mL deionizations are added into four-hole boiling flask
Water, adds 150~200g portland cements, continues at temperature for 55~65 DEG C, under the conditions of rotating speed is 600~800r/min,
Constant temperature stirring 30~45min of mixing, discharging produces the special friction reducer of lightning protection engineering.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135714A (en) * | 2018-09-17 | 2019-01-04 | 佛山市禅城区诺高环保科技有限公司 | A kind of preparation method of long-acting antiseptic resistance-reducing agent |
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|---|---|---|---|---|
| JP2004292291A (en) * | 2003-03-28 | 2004-10-21 | Nippon Paper Chemicals Co Ltd | Grounding resistance reducing agent |
| CN102824898A (en) * | 2012-09-18 | 2012-12-19 | 西安科技大学 | Three-dimensional porous pressure-resistant and expansion-limiting type bentonite adsorbing material and preparation method thereof |
| CN105419768A (en) * | 2015-10-29 | 2016-03-23 | 中国石油集团渤海钻探工程有限公司 | Instant water-in-oil resistance-reducing agent and preparation method thereof |
| CN105967668A (en) * | 2016-05-10 | 2016-09-28 | 吴迪 | Preparation method of cordierite-mullite porous ceramic based on rice hulls |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004292291A (en) * | 2003-03-28 | 2004-10-21 | Nippon Paper Chemicals Co Ltd | Grounding resistance reducing agent |
| CN102824898A (en) * | 2012-09-18 | 2012-12-19 | 西安科技大学 | Three-dimensional porous pressure-resistant and expansion-limiting type bentonite adsorbing material and preparation method thereof |
| CN105419768A (en) * | 2015-10-29 | 2016-03-23 | 中国石油集团渤海钻探工程有限公司 | Instant water-in-oil resistance-reducing agent and preparation method thereof |
| CN105967668A (en) * | 2016-05-10 | 2016-09-28 | 吴迪 | Preparation method of cordierite-mullite porous ceramic based on rice hulls |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135714A (en) * | 2018-09-17 | 2019-01-04 | 佛山市禅城区诺高环保科技有限公司 | A kind of preparation method of long-acting antiseptic resistance-reducing agent |
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Application publication date: 20170804 |