CN108997541A - A kind of graft modification formaldehyde adsorbent and preparation method thereof - Google Patents
A kind of graft modification formaldehyde adsorbent and preparation method thereof Download PDFInfo
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- CN108997541A CN108997541A CN201810682244.0A CN201810682244A CN108997541A CN 108997541 A CN108997541 A CN 108997541A CN 201810682244 A CN201810682244 A CN 201810682244A CN 108997541 A CN108997541 A CN 108997541A
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 239000003463 adsorbent Substances 0.000 title claims abstract description 23
- 230000004048 modification Effects 0.000 title claims abstract description 16
- 238000012986 modification Methods 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 29
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003999 initiator Substances 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 9
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 20
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000005576 amination reaction Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 8
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- YJUUZFWMKJBVFJ-UHFFFAOYSA-N 1,3-dimethylimidazolidin-4-one Chemical group CN1CN(C)C(=O)C1 YJUUZFWMKJBVFJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000007605 air drying Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000012065 filter cake Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 229920000728 polyester Polymers 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 7
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 6
- 241000282414 Homo sapiens Species 0.000 description 5
- 241001465754 Metazoa Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 3
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000638 stimulation Effects 0.000 description 3
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 231100000869 headache Toxicity 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010012434 Dermatitis allergic Diseases 0.000 description 1
- 206010015946 Eye irritation Diseases 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 208000013738 Sleep Initiation and Maintenance disease Diseases 0.000 description 1
- 206010050208 Teratospermia Diseases 0.000 description 1
- 208000002312 Teratozoospermia Diseases 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- -1 acrylic compounds ester Chemical class 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 201000008937 atopic dermatitis Diseases 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 208000035269 cancer or benign tumor Diseases 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 231100000013 eye irritation Toxicity 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 231100000025 genetic toxicology Toxicity 0.000 description 1
- 230000001738 genotoxic effect Effects 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 208000030603 inherited susceptibility to asthma Diseases 0.000 description 1
- 206010022437 insomnia Diseases 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/264—Synthetic macromolecular compounds derived from different types of monomers, e.g. linear or branched copolymers, block copolymers, graft copolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/14—Diatomaceous earth
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F292/00—Macromolecular compounds obtained by polymerising monomers on to inorganic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
Abstract
The invention discloses a kind of graft modification formaldehyde adsorbents and preparation method thereof, and the adsorbent is made of the raw material of following weight parts: triethylamine 4-6, formaldehyde catching agent 1-2, acrylic acid 5-7, butyl acrylate 30-50, diatomite 13-20, initiator 1.7-2, methyl methacrylate 30-40.Finished product adsorbent strong adsorption of the invention, stability is high, by formaldehyde catching agent, diatomite using polyester as medium, realizes the stability of finished product, and the feature of environmental protection is good in preparation process.
Description
Technical field
The invention belongs to formaldehyde adsorbent fields, and in particular to a kind of graft modification formaldehyde adsorbent and preparation method thereof.
Background technique
Pernicious gas, which refers to, has an adverse effect to the health of human or animal, though in other words to the health of humans and animals without shadow
It rings, but human or animal is made not feel well, influence the gas of human or animal's comfort level.Such as formaldehyde, H2S and aromatic hydrocarbon.Have
Pass data shows that room air pollution is 5~10 times higher than outdoor, up to more than 500 kinds of indoor air pollutants.Room air pollution
The inducement of a variety of diseases is had become, and formaldehyde is then a main aspect for causing room air pollution.Formaldehyde pollution problem master
It concentrates in room, textile and food.Glued board, fiberboard, particieboard in indoor decoration material and furniture etc. are artificial
Contain the largely Lauxite based on formaldehyde in plate, all contains formaldehyde in all kinds of paint, coating.Formaldehyde is to health hazard master
Have the following aspects: a, stimulation: the main harm of formaldehyde shows as the stimulation to skin and mucosa, and formaldehyde is former
Noxious material is starched, can occur the serious stimulation of respiratory tract and oedema, Eye irritation, headache in conjunction with protein, when high concentration sucking.b,
Sensitization: direct skin contact formaldehyde can cause allergic dermatitis, color spot, necrosis, can induce branch when sucking high-concentration formaldehyde
San bronchial asthma.C, mutagenesis: high-concentration formaldehyde or a kind of genotoxicity substance.Experimental animal inhales in laboratory high concentration
In the case where entering, rhinopharyngeal neoplasm can be caused.D, outstanding behaviours: headache, dizzy, out of strength, Nausea and vomiting, uncomfortable in chest, ophthalmodynia, throat
Bitterly, stomach receives poor, palpitaition, insomnia, weight loss, failure of memory and vegetative nervous disorder etc.；Pregnant woman sucks may lead for a long time
Fetal anomaly is caused, or even dead, man sucks for a long time can lead to man's teratospermia, death etc..
Currently, the main method of the pernicious gases such as removal formaldehyde is ventilation and physical absorption；Many producers produce adsorbent,
But effect is undesirable, and not environmentally friendly enough, is easy secondary pollution；Meanwhile the quality of conventional adsorbent is lower, cyclic utilization rate
Low, microcellular structure is easy breakage, reduces adsorption effect.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of graft modification formaldehyde adsorbent and
Preparation method.
To achieve the above object, the invention adopts the following technical scheme:
A kind of graft modification formaldehyde adsorbent, it is composed of the following raw materials by weight:
Triethylamine 4-6, formaldehyde catching agent 1-2, acrylic acid 5-7, butyl acrylate 30-50, diatomite 13-20, initiator
1.7-2, methyl methacrylate 30-40.
The initiator is one of ammonium persulfate, sodium peroxydisulfate.
The formaldehyde catching agent is 1,3- dimethyl-2-imidazolinone.
The preparation method of the graft modification formaldehyde adsorbent, comprising the following steps:
(1) diatomite is taken, is calcined 1-2 hours at 700-780 DEG C, wears into fine powder after cooling, being added to concentration is 3-4%
Hydrogen peroxide in, impregnate 3-4 hour, discharging, dry, obtain activated diatomaceous earth powder；
(2) above-mentioned activated diatomaceous earth powder is taken, is added in the thionyl chloride of 6-9 times of its weight, addition is protected at 65-70 DEG C
Temperature stirring 20-30 hours, is distilled off thionyl chloride, and triethylamine is added and obtains insulated and stirred 20-30 hours at 100-105 DEG C
Amination diatomite in powder；
(3) formaldehyde catching agent is taken, is added in 6-10 times of weight of isopropanol, stirs evenly, obtains isopropanol dispersion liquid；
(4) initiator is taken, is added in the deionized water of 20-30 times of its weight, stirs evenly；
(5) acrylic acid, methyl methacrylate, butyl acrylate mixing are taken, stirs evenly, is added to mixture weight 4-
It in 7 times of deionized water, stirs evenly, above-mentioned amination diatomite in powder is added, is sent in reaction kettle, be passed through nitrogen, adjust anti-
Answering kettle temperature degree is 65-70 DEG C, and isopropanol dispersion liquid, initiator solution is added, insulated and stirred 4-6 hours, discharges, filters, will
Filter cake washing, air drying to get.
Advantages of the present invention:
The present invention is first by diatomite using amination modifying is carried out after Activation of Hydrogen Peroxide Solution, later by itself and acrylic compounds ester list
Body is blended, and polymerize under initiator effect, and it is molten that the isopropanol containing 1,3-Dimethyl-2-imidazolidinone is introduced in polymerization process
Liquid, it is anti-due to amine and acrylic acid in grafting process to realize grafting of the 1,3-Dimethyl-2-imidazolidinone to polyester
It answers, improves dispersibility of the diatomite between polyester, finished product adsorbent strong adsorption of the invention, stability is high, and formaldehyde is caught
Agent, diatomite are caught using polyester as medium, realizes the stability of finished product, and the feature of environmental protection is good in preparation process.
Specific embodiment
Embodiment 1
A kind of graft modification formaldehyde adsorbent, it is composed of the following raw materials by weight:
Triethylamine 4, formaldehyde catching agent 1, acrylic acid 5, butyl acrylate 30, diatomite 13, initiator 1.7, metering system
Sour methyl esters 30.
The initiator is one of ammonium persulfate, sodium peroxydisulfate.
The formaldehyde catching agent is 1,3- dimethyl-2-imidazolinone.
The preparation method of the graft modification formaldehyde adsorbent, comprising the following steps:
(1) diatomite is taken, is calcined 1 hour at 700 DEG C, wears into fine powder after cooling, is added to the hydrogen peroxide that concentration is 3%
In, it impregnates 3 hours, discharges, it is dry, obtain activated diatomaceous earth powder；
(2) above-mentioned activated diatomaceous earth powder is taken, is added in the thionyl chloride of 6 times of its weight, addition is kept the temperature at 65 DEG C stirs
It mixes 20 hours, thionyl chloride is distilled off, triethylamine is added, insulated and stirred 20 hours at 100 DEG C obtain amination diatomite in powder；
(3) formaldehyde catching agent is taken, is added in 6 times of weight of isopropanol, stirs evenly, obtain isopropanol dispersion liquid；
(4) initiator is taken, is added in the deionized water of 20 times of its weight, stirs evenly；
(5) acrylic acid, methyl methacrylate, butyl acrylate mixing are taken, stirs evenly, is added to mixture weight 4
It in deionized water again, stirs evenly, above-mentioned amination diatomite in powder is added, is sent in reaction kettle, be passed through nitrogen, adjust reaction
Kettle temperature degree is 65 DEG C, and isopropanol dispersion liquid, initiator solution is added, insulated and stirred 4 hours, discharges, filters, by filter cake water
Wash, air drying to get.
Embodiment 2
A kind of graft modification formaldehyde adsorbent, it is composed of the following raw materials by weight:
Triethylamine 6, formaldehyde catching agent 2, acrylic acid 7, butyl acrylate 50, diatomite 20, initiator 2, methacrylic acid
Methyl esters 40.
The initiator is one of ammonium persulfate, sodium peroxydisulfate.
The formaldehyde catching agent is 1,3- dimethyl-2-imidazolinone.
The preparation method of the graft modification formaldehyde adsorbent, comprising the following steps:
(1) diatomite is taken, is calcined 2 hours at 780 DEG C, wears into fine powder after cooling, is added to the hydrogen peroxide that concentration is 4%
In, it impregnates 4 hours, discharges, it is dry, obtain activated diatomaceous earth powder；
(2) above-mentioned activated diatomaceous earth powder is taken, is added in the thionyl chloride of 9 times of its weight, addition is kept the temperature at 70 DEG C stirs
It mixes 30 hours, thionyl chloride is distilled off, triethylamine is added, insulated and stirred 30 hours at 105 DEG C obtain amination diatomite in powder；
(3) formaldehyde catching agent is taken, is added in 10 times of weight of isopropanol, stirs evenly, obtain isopropanol dispersion liquid；
(4) initiator is taken, is added in the deionized water of 30 times of its weight, stirs evenly；
(5) acrylic acid, methyl methacrylate, butyl acrylate mixing are taken, stirs evenly, is added to mixture weight 7
It in deionized water again, stirs evenly, above-mentioned amination diatomite in powder is added, is sent in reaction kettle, be passed through nitrogen, adjust reaction
Kettle temperature degree is 70 DEG C, and isopropanol dispersion liquid, initiator solution is added, insulated and stirred 6 hours, discharges, filters, by filter cake water
Wash, air drying to get.
Performance test:
Identical 30 cubic metres of the container of 3 sizes is selected, the grafting that the embodiment of the present invention 1 is respectively put into container changes
Property formaldehyde adsorbent 300g (being calculated as a container), the graft modification formaldehyde adsorbent 300g (being calculated as a container) of embodiment 2 and diatom
Native powder 300g (being calculated as comparison container), leads to formaldehyde, until concentration of formaldehyde is 3 milligrams/cubic metre, sealing container surveys formaldehyde removing rate:
After 24 hours, the concentration of formaldehyde in a container is 0.7 milligram/cubic metre；
After 24 hours, the concentration of formaldehyde in b container is 0.8 milligram/cubic metre；
After 24 hours, comparing the concentration of formaldehyde in container is 2.0 milligrams/cubic metre；
After 48 hours, the concentration of formaldehyde in a container is 0.2 milligram/cubic metre；
After 48 hours, the concentration of formaldehyde in a container is 0.3 milligram/cubic metre；
After 48 hours, comparing the concentration of formaldehyde in container is 1.4 milligrams/cubic metre.
Claims (4)
1. a kind of graft modification formaldehyde adsorbent, which is characterized in that it is composed of the following raw materials by weight:
Triethylamine 4-6, formaldehyde catching agent 1-2, acrylic acid 5-7, butyl acrylate 30-50, diatomite 13-20, initiator 1.7-
2, methyl methacrylate 30-40.
2. a kind of graft modification formaldehyde adsorbent according to claim 1, which is characterized in that the initiator is over cure
One of sour ammonium, sodium peroxydisulfate.
3. a kind of graft modification formaldehyde adsorbent according to claim 1, which is characterized in that the formaldehyde catching agent is
1,3- dimethyl-2-imidazolinone.
4. a kind of preparation method of graft modification formaldehyde adsorbent as described in claim 1, which is characterized in that including following step
It is rapid:
(1) diatomite is taken, is calcined 1-2 hours at 700-780 DEG C, wears into fine powder after cooling, being added to concentration is the double of 3-4%
It in oxygen water, impregnates 3-4 hours, discharges, it is dry, obtain activated diatomaceous earth powder；
(2) above-mentioned activated diatomaceous earth powder is taken, is added in the thionyl chloride of 6-9 times of its weight, addition is kept the temperature at 65-70 DEG C stirs
It mixes 20-30 hours, thionyl chloride is distilled off, triethylamine is added and obtains amination insulated and stirred 20-30 hours at 100-105 DEG C
Diatomite in powder；
(3) formaldehyde catching agent is taken, is added in 6-10 times of weight of isopropanol, stirs evenly, obtains isopropanol dispersion liquid；
(4) initiator is taken, is added in the deionized water of 20-30 times of its weight, stirs evenly；
(5) acrylic acid, methyl methacrylate, butyl acrylate mixing are taken, stirs evenly, is added to 4-7 times of mixture weight
Deionized water in, stir evenly, above-mentioned amination diatomite in powder be added, is sent in reaction kettle, be passed through nitrogen, adjust reaction kettle
Temperature is 65-70 DEG C, and isopropanol dispersion liquid, initiator solution is added, insulated and stirred 4-6 hours, discharges, filters, by filter cake
Washing, air drying to get.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810682244.0A CN108997541A (en) | 2018-06-28 | 2018-06-28 | A kind of graft modification formaldehyde adsorbent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109593401A (en) * | 2018-12-28 | 2019-04-09 | 张展清 | A kind of ordor removing rosin ink and preparation method thereof |
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| CN107868166A (en) * | 2017-11-02 | 2018-04-03 | 佛山市顺德区巴德富实业有限公司 | Modified acrylate emulsion for eliminating formaldehyde in air and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109593401A (en) * | 2018-12-28 | 2019-04-09 | 张展清 | A kind of ordor removing rosin ink and preparation method thereof |
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