CN108636103A - A kind of room air composite purifying agent - Google Patents
A kind of room air composite purifying agent Download PDFInfo
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- CN108636103A CN108636103A CN201810423115.XA CN201810423115A CN108636103A CN 108636103 A CN108636103 A CN 108636103A CN 201810423115 A CN201810423115 A CN 201810423115A CN 108636103 A CN108636103 A CN 108636103A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/20—Organic adsorbents
- B01D2253/202—Polymeric adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
The present invention relates to air purifying preparation technical fields, and in particular to a kind of room air composite purifying agent, the room air composite purifying agent are made of the substance of following parts by weight：6~24 parts by weight of organic titanate, 0.2~2 parts by weight of organosilicon acid esters, 0.2~1 parts by weight of transition metal salt, 50~80 parts by weight of polyether polyol, 50~80 parts by weight of isocyanates, 50~100 parts by weight of di-n-octyl phthalate, 2~5 parts by weight of amine chain extender, 0.1~0.8 parts by weight of stannous octoate, 3~5 parts by weight of silane coupling agent, 100~200 parts by weight of alcoholic solvent.The room air composite purifying agent of the present invention contains abundant pore structure, and specific surface area is high, can adsorb pernicious gas in environment, realizes the completion in situ of pernicious gas enrichment, decomposable process, improves pernicious gas processing speed.
Description
Technical field
The present invention relates to air purifying preparation technical fields, and in particular to a kind of room air composite purifying agent.
Background technology
It is easy to cause acute poisoning, less serious case that can go out when VOCs (volatile organic compounds) excessive concentration in room air
Now headache, dizzy, cough, Nausea and vomiting are in dead drunk liquor-saturated shape；Severe one will appear hepatotoxicity or even go into a coma quickly, and some can also energy
It is in peril of one's life.It hangs up one's hat in the interior that VOCs pollutes, slow poisoning, damage liver and nervous system can be caused to cause entirely
Body inability, drowsiness, pruitus etc..Some can also can cause endocrine disorder, influence sexual function；Benzene and dimethylbenzene can also damage
System, so that cause leukaemia.Oneself is caused through being determined as carcinogenic by the World Health Organization and causing deformed material by VOCs at present
The health problem that indoor environmental pollution is brought has become the new hot spot that the public attractes attention.
According to statistics, up to thousands of kinds of VOCs, current country VOCs main processing ways are absorption, are catalyzed burning, at biology
Reason.Absorption and catalysis burning apply in general to thousands of ppm or more high concentrations VOCs processing；Bioanalysis reaction speed is slow, removes
VOCs types are single；Low concentration VOCs generally uses photocatalysis Decomposition, conventional photochemical catalyst TiO2, due to simple TiO2Hold
Easily generation light induced electron and hole is again compound, its catalytic activity is made to have a greatly reduced quality；Therefore, there is an urgent need for a kind of new catalyst,
Can utilize photocatalysis technology that can effectively remove low concentration (500ppm or less) organic exhaust gas, realize low concentration VOCs it is efficient,
Quickly, high removal rate is reduced to environmental injury.
Invention content
It is of the existing technology the purpose of the invention is to overcome the problems, such as, a kind of room air composite purifying agent is provided,
The room air composite purifying agent efficiently, quickly can carry out absorption and catalytic degradation to indoor VOCs, have removal rate
Height, the feature small to environmental hazard.
To achieve the goals above, the present invention provides a kind of room air composite purifying agent, by the substance of following parts by weight
It is made：6~24 parts by weight of organic titanate, 0.2~2 parts by weight of organosilicon acid esters, 0.2~1 parts by weight of transition metal salt, polyethers
50~80 parts by weight of polyalcohol, 50~80 parts by weight of isocyanates, 50~100 parts by weight of di-n-octyl phthalate, amine
2~5 parts by weight of chain extender, 0.1~0.8 parts by weight of stannous octoate, 3~5 parts by weight of silane coupling agent, 100~200 weight of alcoholic solvent
Measure part.
Through the above technical solutions, the present invention uses polyether polyol and isocyanates reaction that poly- ammonia is prepared first
Then ester mixes polyurethane with di-n-octyl phthalate, and organic titanate, organosilicon acid esters and transition metal is added
The mixed system of salt, is then sealed thermal response, generates the Si-M-TiO with catalytic performance2(transition metal and silicon are total
Modifying titanium dioxide), and Si-M-TiO2It is coupled by the polymer in the effect and system of silane coupling agent, makes Si-M-
TiO2Firm attachment on polymer, finally carries out electrostatic spinning to it, obtains containing Si-M-TiO2Polymer fiber, most
Polymer fiber is made annealing treatment afterwards, organic impurities is not only removed, but also porous structure can be formed in fibrous inside, improves fiber
Specific surface area and absorption property.The room air composite purifying agent of the present invention contains abundant pore structure, and specific surface area is high,
Pernicious gas in environment can be adsorbed, the completion in situ of VOCs enrichments, decomposable process is realized, improves VOCs processing speeds.
Specific implementation mode
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of room air composite purifying agent, is made of the substance of following parts by weight：Organic titanate 6~
24 parts by weight, 0.2~2 parts by weight of organosilicon acid esters, 0.2~1 parts by weight of transition metal salt, 50~80 weight of polyether polyol
Part, 50~80 parts by weight of isocyanates, 50~100 parts by weight of di-n-octyl phthalate, 2~5 parts by weight of amine chain extender,
0.1~0.8 parts by weight of stannous octoate, 3~5 parts by weight of silane coupling agent, 100~200 parts by weight of alcoholic solvent.Under optimum condition,
The room air composite purifying agent, is made of the substance of following parts by weight：12~20 parts by weight of organic titanate, organic silicic acid
0.4~1.2 parts by weight of ester, 0.4~0.6 parts by weight of transition metal salt, 60~75 parts by weight of polyether polyol, isocyanates 60~
75 parts by weight, 75~90 parts by weight of di-n-octyl phthalate, 2~5 parts by weight of amine chain extender, stannous octoate 0.2~0.5
Parts by weight, 3~5 parts by weight of silane coupling agent, 100~200 parts by weight of alcoholic solvent.
The present invention also provides a kind of preparation methods of the room air composite purifying agent, include the following steps：
(1) it will be uniformly mixed in polyether polyol, isocyanates, amine chain extender, stannous octoate, then 75~120
1~4h is reacted at DEG C, obtains polyurethane resin；
(2) by organic titanate and organosilicon acid esters in alcoholic solvent be uniformly mixed, stir to get mixed sols, then to
Transition metal salt is added in mixed sols, mixed system A is obtained after stirring evenly；
(3) polyurethane resin, di-n-octyl phthalate are uniformly mixed, it is mixed to this under conditions of being then stirred for
Mixed system A and silane coupling agent is added in zoarium system, obtains mixed system B；Mixed system B is sealed at 100~150 DEG C
1~5h is reacted, complex emulsions are obtained；
(4) electrostatic spinning is carried out to complex emulsions, obtains composite fibre, composite fibre is made annealing treatment, obtains room
Interior air combined cleanser.
It is reacted with isocyanates by polyether polyol in the present invention and generates polyurethane resin, it is described poly- under optimum condition
Ethoxylated polyhydric alcohol is selected from least one of polyoxypropyleneglycol, polytetrahydrofuran diol, tetrahydrofuran-propylene oxide glycol.
The isocyanates is in methyl diphenylene diisocyanate, toluene di-isocyanate(TDI), polymethylene multi-phenenyl isocyanate
At least one.
The amine chain extender be selected from diamino dimethyl sulphur-based toluene, bis- chloro- 4,4'- diaminodiphenyl-methanes of 3,3'-,
At least one of the bis- Zhong Ding aminodiphenylmethanes of 4,4'-, Unilink4102, diethyl toluene diamine.
Under optimum condition, the mass ratio of the organic titanate, organosilicon acid esters and transition metal salt is (30~100):
(1~2):1.
Under optimum condition, the organic titanate is selected from tetraethyl titanate, tetramethoxy titanate ester, tetraisopropyl titanate, metatitanic acid
At least one of four isobutyl esters, tetra-n-butyl titanate.
The present invention is doped modification by using element silicon and transition metal element to titanium dioxide, improves
TiO2Catalytic activity, and avoid TiO2Poorly conductive and light induced electron and hole the shortcomings that being easy recombination, improve catalysis
The light utilization efficiency and catalytic efficiency of agent.Under optimum condition, the organosilicon acid esters is selected from quanmethyl silicate, ethyl orthosilicate, silicon
At least one of sour four butyl esters.Under optimum condition, the transition metal salt is selected from soluble ferric iron salt, soluble nickel salt, solvable
Property zinc salt, soluble cobalt, soluble manganese salt, soluble silver salt, at least one of soluble molybdenum salt.
Under optimum condition, the silane coupling agent is selected from aminopropyl triethoxysilane, aminopropyl trimethoxysilane, 2-
Aminoethyl amino propyl trimethoxy silane, divinyl triammonium base propyl trimethoxy silicane, aminoethylaminopropyl methyl dimethoxy oxygen
In base silane, aminoethylaminopropyl triethoxysilane, urea propyl-triethoxysilicane and urea propyl trimethoxy silicane extremely
Few one kind.
Under optimum condition, the annealing treating process is：Anneal 2~6h at 300~500 DEG C.
Under optimum condition, the alcoholic solvent is in glycerine, ethyl alcohol, isopropanol, propylene glycol, ethylene glycol and n-butanol
It is at least one.
The present invention will be described in detail by way of examples below.
Embodiment 1
A kind of room air composite purifying agent, is made of the substance of following parts by weight：16 parts by weight of tetraethyl titanate, positive silicon
0.6 parts by weight of acetoacetic ester, 0.4 parts by weight of nickel chloride, 3 parts by weight of aminopropyl trimethoxysilane, 70 weight of polytetrahydrofuran diol
Measure part, 70 parts by weight of toluene di-isocyanate(TDI), 80 parts by weight of di-n-octyl phthalate, 3 weight of diamino dimethyl sulphur-based toluene
Measure part, 0.3 parts by weight of stannous octoate, 200 parts by weight of glycerine.
(1) it will be mixed in polytetrahydrofuran diol, toluene di-isocyanate(TDI), diamino dimethyl sulphur-based toluene, stannous octoate
Uniformly, 2h then is reacted at 80 DEG C, obtains polyurethane resin；
(2) by tetraethyl titanate and ethyl orthosilicate in glycerine be uniformly mixed, stir to get mixed sols, then to
Nickel chloride is added in mixed sols, mixed system A is obtained after stirring evenly；
(3) polyurethane resin, di-n-octyl phthalate are uniformly mixed, it is mixed to this under conditions of being then stirred for
Mixed system A and aminopropyl trimethoxysilane is added in zoarium system, obtains mixed system B；By mixed system B at 120 DEG C
Sealing reaction 3h, obtains complex emulsions；
(4) electrostatic spinning is carried out to complex emulsions, obtaining composite fibre, (electrostatic spinning process parameter is voltage 12kV, is spun
Silk flow velocity is 0.5L/h, and distance 12cm between spinning nozzle and receiving screen, collecting drum rotating speed is 8m/min, and collecting drum is a diameter of
7.8cm), composite fibre is annealed 2h at 400 DEG C, obtains room air composite purifying agent.
Embodiment 2
A kind of room air composite purifying agent, is made of the substance of following parts by weight：12 parts by weight of tetramethoxy titanate ester, silicic acid
Four methyl esters, 0.4 parts by weight, 0.4 parts by weight of silver nitrate, 3.2 parts by weight of aminoethylaminopropyl triethoxysilane, tetrahydrofuran-oxygen
Change 75 parts by weight of propylene glycol, 75 parts by weight of toluene di-isocyanate(TDI), 75 parts by weight of di-n-octyl phthalate, diamino two
2 parts by weight of (methylthiomethyl), 0.5 parts by weight of stannous octoate, 100 parts by weight of ethyl alcohol.
(1) by tetrahydrofuran-propylene oxide glycol, toluene di-isocyanate(TDI), diamino dimethyl sulphur-based toluene, stannous octoate
In be uniformly mixed, then react 3h at 100 DEG C, obtain polyurethane resin；
(2) tetramethoxy titanate ester and quanmethyl silicate are uniformly mixed in ethanol, stir to get mixed sols, then to mixed
It closes in colloidal sol and silver nitrate is added, mixed system A is obtained after stirring evenly；
(3) polyurethane resin, di-n-octyl phthalate are uniformly mixed, it is mixed to this under conditions of being then stirred for
Mixed system A and aminoethylaminopropyl triethoxysilane is added in zoarium system, obtains mixed system B；Mixed system B is existed
Sealing reaction 2h, obtains complex emulsions at 120 DEG C；
(4) electrostatic spinning is carried out to complex emulsions, obtaining composite fibre, (electrostatic spinning process parameter is voltage 12kV, is spun
Silk flow velocity is 0.5L/h, and distance 12cm between spinning nozzle and receiving screen, collecting drum rotating speed is 8m/min, and collecting drum is a diameter of
7.8cm), composite fibre is annealed 3h at 400 DEG C, obtains room air composite purifying agent.
Embodiment 3
A kind of room air composite purifying agent, is made of the substance of following parts by weight：24 parts by weight of tetra-n-butyl titanate, silicon
1.2 parts by weight of sour four butyl ester, 0.6 parts by weight of sodium molybdate, 3.5 parts by weight of divinyl triammonium base propyl trimethoxy silicane, poly- four
60 parts by weight of hydrogen furans glycol, 60 parts by weight of toluene di-isocyanate(TDI), 90 parts by weight of di-n-octyl phthalate, diamino two
5 parts by weight of (methylthiomethyl), 0.2 parts by weight of stannous octoate, 200 parts by weight of isopropanol.
(1) it will be mixed in polytetrahydrofuran diol, toluene di-isocyanate(TDI), diamino dimethyl sulphur-based toluene, stannous octoate
Uniformly, 1h then is reacted at 120 DEG C, obtains polyurethane resin；
(2) tetra-n-butyl titanate and tetrabutyl silicate are uniformly mixed in isopropanol, stir to get mixed sols, then
Sodium molybdate is added into mixed sols, mixed system A is obtained after stirring evenly；
(3) polyurethane resin, di-n-octyl phthalate are uniformly mixed, it is mixed to this under conditions of being then stirred for
Mixed system A and divinyl triammonium base propyl trimethoxy silicane is added in zoarium system, obtains mixed system B；By mixed system B
Sealing reaction 1h, obtains complex emulsions at 150 DEG C；
(4) electrostatic spinning is carried out to complex emulsions, obtaining composite fibre, (electrostatic spinning process parameter is voltage 12kV, is spun
Silk flow velocity is 0.5L/h, and distance 12cm between spinning nozzle and receiving screen, collecting drum rotating speed is 8m/min, and collecting drum is a diameter of
7.8cm), composite fibre is annealed 2h at 500 DEG C, obtains room air composite purifying agent.
Embodiment 4
A kind of room air composite purifying agent, is made of the substance of following parts by weight：20 parts by weight of tetrabutyl titanate, silicon
0.2 parts by weight of sour four methyl esters, 0.2 parts by weight of zinc nitrate, 3 parts by weight of 2- aminoethyl amino propyl trimethoxy silanes, tetrahydrofuran-
80 parts by weight of propylene oxide glycol, 80 parts by weight of toluene di-isocyanate(TDI), 100 parts by weight of di-n-octyl phthalate, 4,4'-
Double 2 parts by weight of Zhong Ding aminodiphenylmethanes, 0.8 parts by weight of stannous octoate, 100 parts by weight of propylene glycol.
(1) by tetrahydrofuran-propylene oxide glycol, toluene di-isocyanate(TDI), the bis- Zhong Ding aminodiphenylmethanes of 4,4'-,
It is uniformly mixed in stannous octoate, then reacts 4h at 75 DEG C, obtain polyurethane resin；
(2) tetrabutyl titanate and quanmethyl silicate are uniformly mixed in propylene glycol, stir to get mixed sols, then
Zinc nitrate is added into mixed sols, mixed system A is obtained after stirring evenly；
(3) polyurethane resin, di-n-octyl phthalate are uniformly mixed, it is mixed to this under conditions of being then stirred for
Mixed system A and 2- aminoethyl amino propyl trimethoxy silane is added in zoarium system, obtains mixed system B；Mixed system B is existed
Sealing reaction 5h, obtains complex emulsions at 100 DEG C；
(4) electrostatic spinning is carried out to complex emulsions, obtaining composite fibre, (electrostatic spinning process parameter is voltage 12kV, is spun
Silk flow velocity is 0.5L/h, and distance 12cm between spinning nozzle and receiving screen, collecting drum rotating speed is 8m/min, and collecting drum is a diameter of
7.8cm), composite fibre is annealed 6h at 350 DEG C, obtains room air composite purifying agent.
Embodiment 5
A kind of room air composite purifying agent, is made of the substance of following parts by weight：24 parts by weight of quanmethyl silicate, silicic acid
Four methyl esters, 2 parts by weight, 1 parts by weight of cobalt chloride, 5 parts by weight of urea propyl trimethoxy silicane, 50 parts by weight of polyoxypropyleneglycol,
50 parts by weight of methyl diphenylene diisocyanate, 50 parts by weight of di-n-octyl phthalate, the bis- Zhong Ding aminodiphenyls bases of 4,4'-
5 parts by weight of methane, 0.1 parts by weight of stannous octoate, 200 parts by weight of isopropanol.
(1) by polyoxypropyleneglycol, methyl diphenylene diisocyanate, the bis- Zhong Ding aminodiphenylmethanes of 4,4'-, pungent
It is uniformly mixed in sour stannous, then reacts 3h at 90 DEG C, obtain polyurethane resin；
(2) by quanmethyl silicate and quanmethyl silicate in isopropanol be uniformly mixed, stir to get mixed sols, then to
Cobalt chloride is added in mixed sols, mixed system A is obtained after stirring evenly；
(3) polyurethane resin, di-n-octyl phthalate are uniformly mixed, it is mixed to this under conditions of being then stirred for
Mixed system A and urea propyl trimethoxy silicane is added in zoarium system, obtains mixed system B；By mixed system B at 120 DEG C
Sealing reaction 2h, obtains complex emulsions；
(4) electrostatic spinning is carried out to complex emulsions, obtaining composite fibre, (electrostatic spinning process parameter is voltage 12kV, is spun
Silk flow velocity is 0.5L/h, and distance 12cm between spinning nozzle and receiving screen, collecting drum rotating speed is 8m/min, and collecting drum is a diameter of
7.8cm), composite fibre is annealed 3h at 350 DEG C, obtains room air composite purifying agent.
Comparative example 1
A kind of room air composite purifying agent, is made of the substance of following parts by weight：16 parts by weight of tetraethyl titanate, positive silicon
0.6 parts by weight of acetoacetic ester, 3 parts by weight of aminopropyl trimethoxysilane, 70 parts by weight of polytetrahydrofuran diol, toluene diisocynate
70 parts by weight of ester, 80 parts by weight of di-n-octyl phthalate, 3 parts by weight of diamino dimethyl sulphur-based toluene, 0.3 weight of stannous octoate
Measure part, 200 parts by weight of glycerine.
(1) it will be mixed in polytetrahydrofuran diol, toluene di-isocyanate(TDI), diamino dimethyl sulphur-based toluene, stannous octoate
Uniformly, 2h then is reacted at 80 DEG C, obtains polyurethane resin；
(2) tetraethyl titanate and ethyl orthosilicate are obtained into mixed system A after mixing in glycerine；
(3) polyurethane resin, di-n-octyl phthalate are uniformly mixed, it is mixed to this under conditions of being then stirred for
Mixed system A and aminopropyl trimethoxysilane is added in zoarium system, obtains mixed system B；By mixed system B at 120 DEG C
Sealing reaction 3h, obtains complex emulsions；
(4) electrostatic spinning is carried out to complex emulsions, obtaining composite fibre, (electrostatic spinning process parameter is voltage 12kV, is spun
Silk flow velocity is 0.5L/h, and distance 12cm between spinning nozzle and receiving screen, collecting drum rotating speed is 8m/min, and collecting drum is a diameter of
7.8cm), composite fibre is annealed 2h at 400 DEG C, obtains room air composite purifying agent.
Comparative example 2
A kind of room air composite purifying agent, is made of the substance of following parts by weight：16 parts by weight of tetraethyl titanate, chlorination
0.4 parts by weight of nickel, 3 parts by weight of aminopropyl trimethoxysilane, 70 parts by weight of polytetrahydrofuran diol, toluene di-isocyanate(TDI) 70
Parts by weight, 80 parts by weight of di-n-octyl phthalate, 3 parts by weight of diamino dimethyl sulphur-based toluene, 0.3 weight of stannous octoate
Part, 200 parts by weight of glycerine.
(1) it will be mixed in polytetrahydrofuran diol, toluene di-isocyanate(TDI), diamino dimethyl sulphur-based toluene, stannous octoate
Uniformly, 2h then is reacted at 80 DEG C, obtains polyurethane resin；
(2) tetraethyl titanate is uniformly mixed in glycerine, is added after nickel chloride stirs evenly and obtains mixed system A；
(3) polyurethane resin, di-n-octyl phthalate are uniformly mixed, it is mixed to this under conditions of being then stirred for
Mixed system A and aminopropyl trimethoxysilane is added in zoarium system, obtains mixed system B；By mixed system B at 120 DEG C
Sealing reaction 3h, obtains complex emulsions；
(4) electrostatic spinning is carried out to complex emulsions, obtaining composite fibre, (electrostatic spinning process parameter is voltage 12kV, is spun
Silk flow velocity is 0.5L/h, and distance 12cm between spinning nozzle and receiving screen, collecting drum rotating speed is 8m/min, and collecting drum is a diameter of
7.8cm), composite fibre is annealed 2h at 400 DEG C, obtains room air composite purifying agent.
Experiment test：
Room air composite purifying agent in 1-5 of the embodiment of the present invention and comparative example 1-2 evaluates the purifying property of VOCs
It is carried out in the straight type polytetrafluoroethylene (PTFE) pipe reactor of Φ 20mm, long 200mm, polytetrafluoroethyl-ne is added in room air composite purifying agent
In alkene pipe reactor, it is -1.0KPa that polytetrafluoroethylene (PTFE) pipe reactor, which is then evacuated to pressure, then to polyfluortetraethylene pipe
Unstripped gas is injected in reactor to normal pressure, tests under different time room air composite purifying agent to the purifying rate of VOCs, raw material
Gas group becomes：Unstripped gas group becomes：VOCs concentration 50ppm (is 3 in molar ratio by formaldehyde, toluene, dimethylbenzene:1:1), remaining is
Air.Reaction carries out under 25 DEG C of atmospheric pressure environments, and experimental result is as shown in table 1~3.
Table 1：The purifying property of room air composite purifying agent PARA FORMALDEHYDE PRILLS(91,95) in embodiment and comparative example
| 2h | 24h | 15 days | |
| Embodiment 1 | 41.76 | 79.41 | 92.89 |
| Embodiment 2 | 40.42 | 82.64 | 92.41 |
| Embodiment 3 | 44.53 | 89.51 | 95.77 |
| Embodiment 4 | 34.90 | 69.38 | 87.88 |
| Embodiment 5 | 38.62 | 75.91 | 90.78 |
| Comparative example 1 | 13.20 | 51.98 | 76.15 |
| Comparative example 2 | 23.64 | 60.99 | 81.74 |
Table 2：The purifying property of room air composite purifying agent in embodiment and comparative example to toluene
| 2h | 24h | 15 days | |
| Embodiment 1 | 39.89 | 66.61 | 83.98 |
| Embodiment 2 | 34.26 | 61.54 | 78.04 |
| Embodiment 3 | 23.57 | 53.24 | 58.12 |
| Embodiment 4 | 30.01 | 56.28 | 73.79 |
| Embodiment 5 | 25.67 | 58.82 | 76.00 |
| Comparative example 1 | 13.86 | 43.01 | 67.58 |
| Comparative example 2 | 15.31 | 49.39 | 70.64 |
Table 3：The purifying property of room air composite purifying agent paraxylene in embodiment and comparative example
| 2h | 24h | 15 days | |
| Embodiment 1 | 27.60 | 50.79 | 63.95 |
| Embodiment 2 | 29.81 | 52.99 | 68.21 |
| Embodiment 3 | 28.10 | 51.79 | 68.71 |
| Embodiment 4 | 32.30 | 53.63 | 64.88 |
| Embodiment 5 | 27.60 | 48.58 | 64.66 |
| Comparative example 1 | 22.19 | 43.25 | 61.39 |
| Comparative example 2 | 15.65 | 40.26 | 56.69 |
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In the skill of the present invention
In art conception range, technical scheme of the present invention can be carried out a variety of simple variants, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to
Protection scope of the present invention.
Claims (9)
1. a kind of room air composite purifying agent, which is characterized in that be made of the substance of following parts by weight：Organic titanate 6~
24 parts by weight, 0.2~2 parts by weight of organosilicon acid esters, 0.2~1 parts by weight of transition metal salt, 50~80 weight of polyether polyol
Part, 50~80 parts by weight of isocyanates, 50~100 parts by weight of di-n-octyl phthalate, 2~5 parts by weight of amine chain extender,
0.1~0.8 parts by weight of stannous octoate, 3~5 parts by weight of silane coupling agent, 100~200 parts by weight of alcoholic solvent.
2. room air composite purifying agent according to claim 1, which is characterized in that by the substance system of following parts by weight
At：12~20 parts by weight of organic titanate, 0.4~1.2 parts by weight of organosilicon acid esters, 0.4~0.6 parts by weight of transition metal salt,
60~75 parts by weight of polyether polyol, 60~75 parts by weight of isocyanates, 75~90 parts by weight of di-n-octyl phthalate, amine
2~5 parts by weight of class chain extender, 0.2~0.5 parts by weight of stannous octoate, 3~5 parts by weight of silane coupling agent, alcoholic solvent 100~200
Parts by weight.
3. room air composite purifying agent according to claim 1 or 2, which is characterized in that the organic titanate is selected from
At least one of tetraethyl titanate, tetramethoxy titanate ester, tetraisopropyl titanate, tetrabutyl titanate, tetra-n-butyl titanate.
4. room air composite purifying agent according to claim 1, which is characterized in that the organosilicon acid esters is selected from silicic acid
At least one of four methyl esters, ethyl orthosilicate, tetrabutyl silicate.
5. room air composite purifying agent according to claim 1, which is characterized in that the transition metal salt is selected from solvable
Property molysite, soluble nickel salt, soluble zinc salt, soluble cobalt, soluble manganese salt, soluble silver salt, in soluble molybdenum salt
It is at least one.
6. room air composite purifying agent according to claim 1, which is characterized in that the polyether polyol is selected from polyoxy
Change at least one of propylene glycol, polytetrahydrofuran diol, tetrahydrofuran-propylene oxide glycol.
7. room air composite purifying agent according to claim 1, which is characterized in that the isocyanates is selected from diphenyl
At least one of methane diisocyanate, toluene di-isocyanate(TDI), polymethylene multi-phenenyl isocyanate.
8. room air composite purifying agent according to claim 1, which is characterized in that the amine chain extender is selected from diamino
Base dimethyl sulphur-based toluene, bis- chloro- 4,4'- diaminodiphenyl-methanes of 3,3'-, the bis- Zhong Ding aminodiphenylmethanes of 4,4'-,
At least one of Unilink4102, diethyl toluene diamine.
9. room air composite purifying agent according to claim 1, which is characterized in that the alcoholic solvent be selected from glycerine,
At least one of ethyl alcohol, isopropanol, propylene glycol, ethylene glycol and n-butanol.
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