CN106084779A - A kind of caprolactam modified polysulfone film - Google Patents
A kind of caprolactam modified polysulfone film Download PDFInfo
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- CN106084779A CN106084779A CN201610437418.8A CN201610437418A CN106084779A CN 106084779 A CN106084779 A CN 106084779A CN 201610437418 A CN201610437418 A CN 201610437418A CN 106084779 A CN106084779 A CN 106084779A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
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Abstract
The invention discloses a kind of caprolactam modified polysulfone film, it is characterized in that, its raw material includes by weight: caprolactam modified polysulfone 100 parts, perfluorinated sulfonic resin 5 12 parts, solvent 50 100 parts, polyaniline nano fiber 38 parts, NACF 14 parts, nano-cerium oxide 12 parts, nano lanthanum oxide 0.5 2 parts, nano-calcium carbonate 25 parts, nano silicon 14 parts, 15 parts of zeolite, cellulose acetate 0.3 1.5 parts, alternate type polystyrene maleic anhydride multipolymer 13 parts, acrylamide 2 3.5 parts, acrylonitrile acrylic acid N vinylpyrrolidone 0.5 3 parts.The caprolactam modified polysulfone film that the present invention proposes, its thermal stability is good, and weatherability and antifouling property are excellent, and water flux is high.
Description
Technical field
The present invention relates to technology field of membrane materials, particularly relate to a kind of caprolactam modified polysulfone film.
Background technology
Polysulfones material is a widely used membrane material of class, including polysulfones, polyether sulfone, PPSS etc. and sulfonation
Or chloromethylation products, they have excellent heat stability, non-oxidizability and excellent mechanical performance and prominent separation
Performance, has been widely used in the backing material of commercialization microfiltration, ultrafiltration and reverse osmosis and NF membrane the most.Non-due to polysulfones
, compared with other hydrophilic material, there is the defect that flux is low, pollute speed, limit polysulfones film material in hydrophilic nmature
The application of material.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes a kind of caprolactam modified polysulfone film, and its heat is steady
Qualitative energy is good, and weatherability and antifouling property are excellent, and water flux is high.
A kind of caprolactam modified polysulfone film that the present invention proposes, its raw material includes by weight: caprolactam modification gathers
Sulfone 100 parts, perfluorinated sulfonic resin 5-12 part, solvent 50-100 part, polyaniline nano fiber 3-8 part, NACF 1-4 part,
Nano-cerium oxide 1-2 part, nano lanthanum oxide 0.5-2 part, nano-calcium carbonate 2-5 part, nano silicon 1-4 part, zeolite 1-5
Part, cellulose acetate 0.3-1.5 part, alternate type polystyrene-maleic anhydride multipolymer 1-3 part, acrylamide 2-3.5
Part, acrylonitrile-acrylic acid-N-vinylpyrrolidone 0.5-3 part；
Wherein, described caprolactam modified polysulfone is prepared according to following technique: by weight by own for 100-200 part interior
Amide adds in reaction vessel, adds 0.5-2 part sodium hydroxide, be subsequently adding 0.5-2 part vinyl after being heated to 110-130 DEG C
Trimethoxy silane, insulation reaction 50-120min after decompression vacuum pumping, add 30-50 part polysulfones after stopping evacuation, then adjust
Joint temperature, to 130-150 DEG C, is stirred until homogeneous dispersion, adds 3-10 part nano zine oxide and 3-10 part acidifying CNT, takes out
It is warming up to 155-165 DEG C after vacuum, adds 3-10 part hexamethylene diisocyanate and stir, and protect at 155-165 DEG C
Temperature reaction 20-45min, reaction naturally cools to room temperature after terminating and obtains described caprolactam modified polysulfone.
Preferably, its raw material includes by weight: caprolactam modified polysulfone 100 parts, perfluorinated sulfonic resin 8-10 part, molten
Agent 65-80 part, polyaniline nano fiber 5-6.5 part, NACF 2.5-3.2 part, nano-cerium oxide 1.3-1.7 part, nanometer
Lanthana 1.1-1.5 part, nano-calcium carbonate 3.8-4.3 part, nano silicon 2.8-3.4 part, zeolite 3.2-4 part, acetic acid fibre
Dimension element 1-1.3 part, alternate type polystyrene-maleic anhydride multipolymer 1.8-2.5 part, acrylamide 2.9-3.2 part, propylene
Nitrile-acrylic acid-N-vinylpyrrolidone 1.8-2.5 part.
Preferably, its raw material includes by weight: caprolactam modified polysulfone 100 parts, perfluorinated sulfonic resin 8.5 parts, molten
Agent 70 parts, polyaniline nano fiber 6 parts, NACF 3 parts, nano-cerium oxide 1.5 parts, nano lanthanum oxide 1.4 parts, nano-sized carbon
Acid calcium 4 parts, nano silicon 3 parts, 3.7 parts of zeolite, cellulose acetate 1.2 parts, alternate type polystyrene-maleic anhydride
Copolymer 2.1 parts, acrylamide 3 parts, acrylonitrile-acrylic acid-N-vinylpyrrolidone 2 parts.
Preferably, described caprolactam modified polysulfone is prepared according to following technique: by weight that 145-160 part is own
Lactams adds in reaction vessel, adds 1-1.6 part sodium hydroxide, be subsequently adding 1-1.5 part ethylene after being heated to 120-125 DEG C
Base trimethoxy silane, insulation reaction 80-90min after decompression vacuum pumping, add 38-45 part polysulfones after stopping evacuation, then
Adjust the temperature to 138-145 DEG C, be stirred until homogeneous dispersion, add 6.8-7.5 part nano zine oxide and 5.8-7 part acidifying carbon nanometer
Pipe, is warming up to 160-163 DEG C after evacuation, add 5.8-6.5 part hexamethylene diisocyanate and stir, and at 160-
Insulation reaction 38-42min at 165 DEG C, reaction naturally cools to room temperature after terminating and obtains described caprolactam modified polysulfone.
Preferably, described caprolactam modified polysulfone is prepared according to following technique: by weight by 150 parts of own interior acyls
Amine adds in reaction vessel, adds 1.3 parts of sodium hydroxide, be subsequently adding 1.2 parts of vinyl trimethoxy silicon after being heated to 125 DEG C
Alkane, insulation reaction 85min after decompression vacuum pumping, add 40 parts of polysulfones after stopping evacuation, then adjust the temperature to 142 DEG C, stir
Mix to dispersed, add 7 parts of nano zine oxides and 6.5 parts of acidifying CNTs, be warming up to 160 DEG C after evacuation, add 6 parts
Hexamethylene diisocyanate stirs, and insulation reaction 40min at 162 DEG C, and reaction naturally cools to room temperature after terminating
Obtain described caprolactam modified polysulfone.
Preferably, described solvent be N-Methyl pyrrolidone, dimethyl sulfoxide, N-methylmorpholine N-oxide hydrate,
One or more mixture in dimethylformamide.
Preferably, the mean diameter of described nano-cerium oxide is 15-30nm；The mean diameter of nano lanthanum oxide is 55-
80nm；The mean diameter of nano-calcium carbonate is 5-25nm；The mean diameter of described nano silicon is 10-25nm.
In the present invention, in the preparation process of caprolactam modified polysulfone, it is firstly added vinyltrimethoxy silane,
Making it take part in the polymerization of caprolactam, add polysulfones afterwards, polysulfones main chain produces hydrogen bond action with the caprolactam of polarity, from
And make polysulfones be dissolved in the melt of caprolactam, improve both compatibilitys, add nano zine oxide and acidifying afterwards
CNT, participate in polymerization vinyltrimethoxy silane to nano zine oxide and acidifying CNT modified, it
Nano zine oxide and acidifying CNT are modified by the hexamethylene diisocyanate of rear addition further, improve and receive
Rice zinc oxide and acidifying CNT dispersibility in system, obtained uniform caprolactam modified polysulfone, be used as
The major ingredient of film, the film obtained has a high hydrophilic, simultaneously because of dispersed nano zine oxide and acidifying CNT, gives
The antibiotic property of film excellence and thermostability；Add perfluorinated sulfonic resin to coordinate with caprolactam modified polysulfone, both controlling
Ratio, make both performances work in coordination with, form typical class finger-like through-hole structure, improve the hydrophilic of film, also accelerate simultaneously
The precipitating rate of film preparation process and dispersion rate, cause the membrane porosity to improve；Add alternate type polystyrene-maleic acid
It is modified by anhydride copolymer, and maleic anhydride therein can move to film surface portion and be hydrolyzed into-COOH group, from
And improve the hydrophilic of film, but it is during system film forming, and the macromolecular chain very easily and in system is wound around, and coordinates and adds
Nano-calcium carbonate and nano silicon, shape between-COOH group energy and nano silicon and nano-calcium carbonate surface hydroxyl
Become H-key, thus nano-calcium carbonate and nano-silicon dioxide particle have been gathered in blend film surface, it is therefore prevented that alternate type polyphenyl second
Alkene-maleic anhydride multipolymer and the winding of polymer in system, make film surface height hydrophilic simultaneously, improve the water penetration of film
Recovery rate；In polyaniline nano fiber addition system, its strand adds solvation to anion, on the one hand increase
The free volume of nanofiber, on the other hand also can occupy the passage within part blend film, thus reduce permeability of the membrane
Can, improve the selection performance of film, and film water to wash rear flux recovery rate higher, pollute resistance little, antifouling property improves, and receives
Rice cerium oxide, nano lanthanum oxide, nano-calcium carbonate, nano silicon, zeolite, acrylamide and acrylonitrile-acrylic acid-N-second
After alkene pyrrolidone coordinates, improve the antifouling property of film, resist chemical and microbial attack ability, improve film simultaneously
Weatherability, and while improving the rejection of film, be effectively increased the flux of film, make the water flux of film reach 20.35L/
(m2.h) more than, rejection reaches more than 96.48%, and porosity reaches more than 66.31%, gives composite membrane good comprehensive
Energy.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
A kind of caprolactam modified polysulfone film that the present invention proposes, its raw material includes by weight: caprolactam modification gathers
Sulfone 100 parts, perfluorinated sulfonic resin 12 parts, solvent 50 parts, polyaniline nano fiber 8 parts, NACF 1 part, nano-cerium oxide 2
Part, nano lanthanum oxide 0.5 part, nano-calcium carbonate 5 parts, nano silicon 4 parts, 1 part of zeolite, cellulose acetate 1.5 parts, alternately
Type polystyrene-maleic anhydride multipolymer 1 part, acrylamide 3.5 parts, acrylonitrile-acrylic acid-N-vinylpyrrolidone
0.5 part；
Wherein, described caprolactam modified polysulfone is prepared according to following technique: by weight by 100 parts of caprolactams
Add in reaction vessel, add 0.5 part of sodium hydroxide after being heated to 130 DEG C, be subsequently adding 2 parts of vinyltrimethoxy silanes,
Insulation reaction 50min after decompression vacuum pumping, adds 50 parts of polysulfones after stopping evacuation, then adjusts the temperature to 130 DEG C, and stirring is extremely
Dispersed, add 10 parts of nano zine oxides and 3 parts of acidifying CNTs, be warming up to 165 DEG C after evacuation, add 3 part of six Asia
Methyl diisocyanate stirs, and insulation reaction 20min at 165 DEG C, and reaction naturally cools to room temperature after terminating and obtains
Described caprolactam modified polysulfone.
Embodiment 2
A kind of caprolactam modified polysulfone film that the present invention proposes, its raw material includes by weight: caprolactam modification gathers
Sulfone 100 parts, perfluorinated sulfonic resin 5 parts, solvent 100 parts, polyaniline nano fiber 3 parts, NACF 4 parts, nano-cerium oxide 1
Part, nano lanthanum oxide 2 parts, nano-calcium carbonate 2 parts, nano silicon 1 part, 5 parts of zeolite, cellulose acetate 0.3 part, alternate type
Polystyrene-maleic anhydride multipolymer 3 parts, acrylamide 2 parts, acrylonitrile-acrylic acid-N-vinylpyrrolidone 3 parts；
Wherein, described caprolactam modified polysulfone is prepared according to following technique: by weight by 200 parts of caprolactams
Add in reaction vessel, add 2 parts of sodium hydroxide after being heated to 110 DEG C, be subsequently adding 0.5 part of vinyltrimethoxy silane,
Insulation reaction 120min after decompression vacuum pumping, adds 30 parts of polysulfones after stopping evacuation, then adjusts the temperature to 150 DEG C, stirring
To dispersed, add 3 parts of nano zine oxides and 10 parts of acidifying CNTs, be warming up to 155 DEG C after evacuation, add 10 part six
Methylene diisocyanate stirs, and insulation reaction 45min at 155 DEG C, and reaction naturally cools to room temperature after terminating and obtains
To described caprolactam modified polysulfone.
Embodiment 3
A kind of caprolactam modified polysulfone film that the present invention proposes, its raw material includes by weight: caprolactam modification gathers
Sulfone 100 parts, perfluorinated sulfonic resin 8 parts, N-Methyl pyrrolidone 80 parts, polyaniline nano fiber 5 parts, NACF 3.2 parts,
Nano-cerium oxide 1.3 parts, nano lanthanum oxide 1.5 parts, nano-calcium carbonate 3.8 parts, nano silicon 3.4 parts, 3.2 parts of zeolite,
Cellulose acetate 1.3 parts, alternate type polystyrene-maleic anhydride multipolymer 1.8 parts, acrylamide 3.2 parts, acrylonitrile-
Acrylic acid-N-vinylpyrrolidone 1.8 parts；
Wherein, described caprolactam modified polysulfone is prepared according to following technique: by weight by 145 parts of caprolactams
Add in reaction vessel, add 1 part of sodium hydroxide after being heated to 125 DEG C, be subsequently adding 1.5 parts of vinyltrimethoxy silanes,
Insulation reaction 80min after decompression vacuum pumping, adds 45 parts of polysulfones after stopping evacuation, then adjusts the temperature to 138 DEG C, and stirring is extremely
Dispersed, add 7.5 parts of nano zine oxides and 5.8 parts of acidifying CNTs, be warming up to 163 DEG C after evacuation, add 5.8 parts
Hexamethylene diisocyanate stirs, and insulation reaction 38min at 165 DEG C, and reaction naturally cools to room temperature after terminating
Obtain described caprolactam modified polysulfone；
Wherein, the mean diameter of described nano-cerium oxide is 30nm；The mean diameter of nano lanthanum oxide is 55nm；Nano-sized carbon
The mean diameter of acid calcium is 25nm；The mean diameter of described nano silicon is 10nm.
Embodiment 4
A kind of caprolactam modified polysulfone film that the present invention proposes, its raw material includes by weight: caprolactam modification gathers
Sulfone 100 parts, perfluorinated sulfonic resin 10 parts, N-methylmorpholine N-oxide hydrate 35 parts, dimethylformamide 30 parts, polyaniline
Nanofiber 6.5 parts, NACF 2.5 parts, nano-cerium oxide 1.7 parts, nano lanthanum oxide 1.1 parts, nano-calcium carbonate 4.3
Part, nano silicon 2.8 parts, 4 parts of zeolite, cellulose acetate 1 part, alternate type polystyrene-maleic anhydride multipolymer
2.5 parts, acrylamide 2.9 parts, acrylonitrile-acrylic acid-N-vinylpyrrolidone 2.5 parts；
Wherein, described caprolactam modified polysulfone is prepared according to following technique: by weight by 160 parts of caprolactams
Add in reaction vessel, add 1.6 parts of sodium hydroxide after being heated to 120 DEG C, be subsequently adding 1 part of vinyltrimethoxy silane,
Insulation reaction 90min after decompression vacuum pumping, adds 38 parts of polysulfones after stopping evacuation, then adjusts the temperature to 145 DEG C, and stirring is extremely
Dispersed, add 6.8 parts of nano zine oxides and 7 parts of acidifying CNTs, be warming up to 160 DEG C after evacuation, add 6.5 part six
Methylene diisocyanate stirs, and insulation reaction 42min at 160 DEG C, and reaction naturally cools to room temperature after terminating and obtains
To described caprolactam modified polysulfone；
Wherein, the mean diameter of described nano-cerium oxide is 15nm；The mean diameter of nano lanthanum oxide is 80nm；Nano-sized carbon
The mean diameter of acid calcium is 5nm；The mean diameter of described nano silicon is 25nm.
Embodiment 5
A kind of caprolactam modified polysulfone film that the present invention proposes, its raw material includes by weight: caprolactam modification gathers
Sulfone 100 parts, perfluorinated sulfonic resin 8.5 parts, N-Methyl pyrrolidone 20 parts, dimethyl sulfoxide 10 parts, N-methylmorpholine N-aoxidize
Thing hydrate 5 parts, dimethylformamide 35 parts, polyaniline nano fiber 6 parts, NACF 3 parts, nano-cerium oxide 1.5 parts,
Nano lanthanum oxide 1.4 parts, nano-calcium carbonate 4 parts, nano silicon 3 parts, 3.7 parts of zeolite, cellulose acetate 1.2 parts, alternately
Type polystyrene-maleic anhydride multipolymer 2.1 parts, acrylamide 3 parts, acrylonitrile-acrylic acid-N-vinylpyrrolidone 2
Part；
Wherein, described caprolactam modified polysulfone is prepared according to following technique: by weight by 150 parts of caprolactams
Add in reaction vessel, add 1.3 parts of sodium hydroxide after being heated to 125 DEG C, be subsequently adding 1.2 parts of vinyl trimethoxy silicon
Alkane, insulation reaction 85min after decompression vacuum pumping, add 40 parts of polysulfones after stopping evacuation, then adjust the temperature to 142 DEG C, stir
Mix to dispersed, add 7 parts of nano zine oxides and 6.5 parts of acidifying CNTs, be warming up to 160 DEG C after evacuation, add 6 parts
Hexamethylene diisocyanate stirs, and insulation reaction 40min at 162 DEG C, and reaction naturally cools to room temperature after terminating
Obtain described caprolactam modified polysulfone；
The mean diameter of described nano-cerium oxide is 20nm；The mean diameter of nano lanthanum oxide is 65nm；Nano-calcium carbonate
Mean diameter be 20nm；The mean diameter of described nano silicon is 20nm.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (7)
1. a caprolactam modified polysulfone film, it is characterised in that its raw material includes by weight: caprolactam modified polysulfone
100 parts, perfluorinated sulfonic resin 5-12 part, solvent 50-100 part, polyaniline nano fiber 3-8 part, NACF 1-4 part, receive
Rice cerium oxide 1-2 part, nano lanthanum oxide 0.5-2 part, nano-calcium carbonate 2-5 part, nano silicon 1-4 part, zeolite 1-5 part,
Cellulose acetate 0.3-1.5 part, alternate type polystyrene-maleic anhydride multipolymer 1-3 part, acrylamide 2-3.5 part, third
Alkene nitrile-acrylic acid-N-vinylpyrrolidone 0.5-3 part；
Wherein, described caprolactam modified polysulfone is prepared according to following technique: by weight by 100-200 part caprolactam
Add in reaction vessel, add 0.5-2 part sodium hydroxide after being heated to 110-130 DEG C, be subsequently adding 0.5-2 part vinyl front three
TMOS, insulation reaction 50-120min after decompression vacuum pumping, add 30-50 part polysulfones after stopping evacuation, then regulate temperature
Degree, to 130-150 DEG C, is stirred until homogeneous dispersion, adds 3-10 part nano zine oxide and 3-10 part acidifying CNT, evacuation
After be warming up to 155-165 DEG C, add 3-10 part hexamethylene diisocyanate and stir, and insulation is anti-at 155-165 DEG C
Answer 20-45min, reaction to naturally cool to room temperature after terminating and obtain described caprolactam modified polysulfone.
Caprolactam modified polysulfone film the most according to claim 1, it is characterised in that its raw material includes by weight: in oneself
Amide modifications polysulfones 100 parts, perfluorinated sulfonic resin 8-10 part, solvent 65-80 part, polyaniline nano fiber 5-6.5 part, activated carbon
Fiber 2.5-3.2 part, nano-cerium oxide 1.3-1.7 part, nano lanthanum oxide 1.1-1.5 part, nano-calcium carbonate 3.8-4.3 part, receive
Rice silicon dioxide 2.8-3.4 part, zeolite 3.2-4 part, cellulose acetate 1-1.3 part, alternate type polystyrene-maleic anhydride
Copolymer 1 .8-2.5 part, acrylamide 2.9-3.2 part, acrylonitrile-acrylic acid-N-vinylpyrrolidone 1.8-2.5 part.
Caprolactam modified polysulfone film the most according to claim 1 or claim 2, it is characterised in that its raw material includes by weight: oneself
Lactams modified polysulfone 100 parts, perfluorinated sulfonic resin 8.5 parts, solvent 70 parts, polyaniline nano fiber 6 parts, NACF 3
Part, nano-cerium oxide 1.5 parts, nano lanthanum oxide 1.4 parts, nano-calcium carbonate 4 parts, nano silicon 3 parts, 3.7 parts of zeolite, vinegar
Acid cellulose 1.2 parts, alternate type polystyrene-maleic anhydride multipolymer 2.1 parts, acrylamide 3 parts, acrylonitrile-propylene
Acid-N-vinylpyrrolidone 2 parts.
4. according to caprolactam modified polysulfone film according to any one of claim 1-3, it is characterised in that described caprolactam changes
Property polysulfones be prepared according to following technique: by weight 145-160 part caprolactam is added in reaction vessel, is heated to
Add 1-1.6 part sodium hydroxide after 120-125 DEG C, be subsequently adding 1-1.5 part vinyltrimethoxy silane, after decompression vacuum pumping
Insulation reaction 80-90min, adds 38-45 part polysulfones after stopping evacuation, then adjusts the temperature to 138-145 DEG C, and stirring is to all
Even dispersion, adds 6.8-7.5 part nano zine oxide and 5.8-7 part acidifying CNT, is warming up to 160-163 DEG C after evacuation,
Add 5.8-6.5 part hexamethylene diisocyanate to stir, and insulation reaction 38-42min at 160-165 DEG C, reaction
Naturally cool to room temperature after end and obtain described caprolactam modified polysulfone.
5. according to caprolactam modified polysulfone film according to any one of claim 1-4, it is characterised in that described caprolactam changes
Property polysulfones be prepared according to following technique: by weight 150 parts of caprolactams are added in reaction vessels, are heated to 125 DEG C
1.3 parts of sodium hydroxide of rear addition, are subsequently adding 1.2 parts of vinyltrimethoxy silanes, insulation reaction after decompression vacuum pumping
85min, adds 40 parts of polysulfones after stopping evacuation, then adjusts the temperature to 142 DEG C, be stirred until homogeneous dispersion, add 7 parts of nanometers
Zinc oxide and 6.5 parts of acidifying CNTs, be warming up to 160 DEG C after evacuation, adds 6 parts of hexamethylene diisocyanate stirrings all
Even, and insulation reaction 40min at 162 DEG C, reaction naturally cools to room temperature after terminating and obtains described caprolactam modified polysulfone.
6. according to caprolactam modified polysulfone film according to any one of claim 1-5, it is characterised in that described solvent is N-first
In base ketopyrrolidine, dimethyl sulfoxide, N-methylmorpholine N-oxide hydrate, dimethylformamide one or more
Mixture.
7. according to caprolactam modified polysulfone film according to any one of claim 1-6, it is characterised in that described nano-cerium oxide
Mean diameter be 15-30nm；The mean diameter of nano lanthanum oxide is 55-80nm；The mean diameter of nano-calcium carbonate is 5-
25nm；The mean diameter of described nano silicon is 10-25nm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449036A (en) * | 2019-08-27 | 2019-11-15 | 湖北中泉环保技术有限公司 | The preparation method of antipollution ultrafiltration membrane |
| CN114163587A (en) * | 2021-11-30 | 2022-03-11 | 中国石油天然气集团有限公司 | Nano-silica graft polymer, preparation method and application thereof, and fluid loss additive |
-
2016
- 2016-06-17 CN CN201610437418.8A patent/CN106084779A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449036A (en) * | 2019-08-27 | 2019-11-15 | 湖北中泉环保技术有限公司 | The preparation method of antipollution ultrafiltration membrane |
| CN110449036B (en) * | 2019-08-27 | 2021-09-07 | 湖北中泉环保技术有限公司 | Preparation method of anti-pollution ultrafiltration membrane |
| CN114163587A (en) * | 2021-11-30 | 2022-03-11 | 中国石油天然气集团有限公司 | Nano-silica graft polymer, preparation method and application thereof, and fluid loss additive |
| CN114163587B (en) * | 2021-11-30 | 2024-01-23 | 中国石油天然气集团有限公司 | Nano silicon dioxide grafted polymer, preparation method and application thereof, and filtrate reducer |
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