CN105126791B - A kind of preparation method for the non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter - Google Patents
A kind of preparation method for the non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter Download PDFInfo
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Abstract
The invention discloses a kind of preparation method for the non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter, comprise the following steps：A) non-woven cloth pre-processes；B) preparation of functional microsphere；C) preparation of self assembly non-woven cloth：Obtain the non-woven cloth sorbing material containing self-assembly microspheres；By changing the polar group content of porous microsphere, pore size and the quantity for being attached to nonwoven fabric surface, the gas permeability of non-woven cloth and the saturated extent of adsorption to opposed polarity gas can be effectively adjusted.Preparation technology of the present invention is simple, and cost is low, and property is stable, has long practicability；Its controllable porosity, abundant acid and alkaline group and higher specific surface area, effectively raise physics, chemical adsorption capacity of the non-woven cloth to volatile organic matter.
Description
Technical field
The present invention relates to a kind of preparation method for the non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter, belong to
Functional high molecule material and environmental area.
Background technology
In recent years, it is more and more into the VOC in air, its complicated component, there is excitant, poison
Property, bad influence is all generated to the health and surrounding environment of the mankind.Wherein waste gas containing benzene is larger to human health damage, its
It will cause lesion after entering human body by respiratory tract and skin, and there is carcinogenesis, as other such as n-hexane, heptane and octane
The central nervous system of people can be influenceed.Therefore, people's care has been increasingly becoming to the Controlling research of volatile organic gaseous contamination
One of environmental problem.
Improvement people to organic exhaust gas already have research, and have developed some fruitful control technologies,
These control technologies are mainly divided to two classes, and one kind is that organic exhaust gas is changed into CO by disruptive method2And H2O；Other a kind of right and wrong
Disruptive method, i.e., by organic waste-gas purification and reclaim, widely used at present and research is more have absorption method, heat damage method,
Condensation method, absorption process etc..The new control technology formed in recent years has biomembrance process, corona method, ozone decomposed method, plasma point
Solution etc..Because absorption method has the purification to waste gas more thorough, treatment effeciency is high, and operating condition is gentle, and energy consumption is low, absorption
Agent also renewable recycling the advantages that, be widely used in it is various in the case of voc_s removal.Adsorbent have it is natural or
Synthesis, organic or inorganic, species is various, and practicality it is high adsorbent species it is seldom, adsorb the tradition used in styrene
The activated carbon of adsorbent【Charcoal absorption handles the performance and study mechanism of benzene and toluene gas, and Kunming University of Science and Technology doctor learns
Meeting paper, 2010.10】.Because activated carbon is a kind of very excellent adsorbent, it has highly developed pore structure, solely
Special outer surface and larger pore volume so that activated carbon has higher adsorption capacity and selectivity【Modeling
competitive adsorption of mixtures of volatile organic compounds in a fixed-
Bed of beaded activated carbon, Environmental Science and Technology.48 (2014)
5108-5117】.Chinese patent CN101734655 A disclose a kind of Alveolate activated carbon of efficiently adsorbing organic exhaust gas, above-mentioned
Activated carbon described in patent can effectively ensure adsorption rate, improve the high temperature resistant of activated carbon, high pressure resistant and service life, can be used for
Adsorb most of organic gas.
Macropore or micro-porous resin are due to its controllable pore structure, stable physicochemical properties and higher ratio surface
The advantages that product, more and more it is applied to the adsorbing domain of pernicious gas【Preparation of highly porous
hypercrosslinked polystyrene adsorbents：Effects of hydrophilicity on the
Adsorption and microwave-assisted desorption behavior toward benzene,
Microporous and Mesoporous Materials.181(2013)222-227】.Chinese patent CN102078802 A
A kind of mesoporous powder body material of modification for adsorbing organic gas is disclosed, the material is using SBA-15 as carrier, through vinyl trimethoxy
The silane coupler grafting of base silane is modified and loaded copper oxide is modified, and it is material modified to be made the SBA-15, and it has pair
VOC purification efficiency is higher, reaction time is short, prepares the features such as simple.However, the easy powder of granular pattern adsorbent
Change and settle, not easy-formation, and gas permeability is poor, it is not readily portable.
The present invention is changed using common poromeric material non-woven cloth as base material by ultraviolet/high energy graft modification and chemistry
The method of property, introduces nonwoven fabric surface by porous microsphere, passes through the pore structure of microballoon high-specific surface area and the support of non-woven fabrics
Performance is combined, and is obtained a kind of surface and is rich in various polar groups, is had the new of gas permeability and adsorptivity double action concurrently and non-is knitted
Cloth material is made, to remove the VOC of low concentration in air.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of to adsorb containing certainly for volatile organic matter
Assemble the non-woven cloth of microballoon.
The purpose of the present invention is achieved through the following technical solutions：
The present invention relates to a kind of preparation method for the non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter, it is special
Sign is to comprise the following steps：
A) non-woven cloth pre-processes：Nonwoven substrate and the unsaturated monomer containing hydrogen donor are put into Polythene Bag,
With ultraviolet radiation 0.1-1h, take out the non-woven cloth after grafting and clean homopolymer with ethanol, perseverance is dried in vacuum drying oven
Weight, obtain the functionalization non-woven cloth that hydrogen donor content is 10%-50%；
B) preparation of functional microsphere：Unsaturated monomer 1-10ml containing hydrogen acceptor and crosslinking agent 1-10ml are placed in flask
Heating, cross-linked polymeric is carried out, prepare and clean filtering with deionized water and ethanol after terminating, it is 10%- to obtain hydrogen acceptor content
The 50% solid porous microballoon of functionalization；
C) preparation of self assembly non-woven cloth：It is under the conditions of ultrasonic vibration, the functionalization obtained in step a) is non-woven
Cloth is sufficiently mixed in organic solvent with the solid porous microballoon of functionalization obtained in step b), taking-up deionization after 0.5-1h
Water and ethanol clean three times, are dried to constant weight in vacuum drying oven, obtain the non-woven cloth sorbing material containing self-assembly microspheres.
Nonwoven substrate in step a) of the present invention is polypropylene nonwoven, polyethylene nonwoven cloth, polyester
Non-woven cloth and polyvinyl alcohol nonwovens；The unsaturated monomer containing hydrogen donor is 4-Vinyl phenol, polyethylene glycol, first
Mixture more than one or both of base acrylic acid and maleic acid.
The unsaturated monomer containing hydrogen acceptor is in enamine, vinyl acetate and 4- stibazoles in the step b)
One or more kinds of mixtures.
Solvent used is one in acetonitrile, tetrahydrofuran, ethanol, dimethylformamide and methanol in the step c)
Kind；The mass ratio of the microballoon and non-woven cloth is 1: 1-5: 1.
Compared with prior art, the present invention has the advantages that：The present invention will be porous micro- with the method for self assembly
Ball is combined with non-woven cloth, and in adsorption process, non-woven cloth provides hydrogen donor group and supporting construction, and porous microsphere carries
Bigger serface and hydrogen acceptor group have been supplied, its absorption property to organic gas particularly polar organic gases is had significantly
Lifting.And non-woven cloth preparation technology is simple, cost is low, repeats and utilizes, environment will not be polluted；It is a kind of great
The new and effective sorbing material of the prospect of marketing, it can be widely applied to volatile organic matter under indoor and other low consistency conditions
Removal.
Embodiment
Below by an embodiment and Application Example, the invention will be further described：The present embodiment with
Implemented under premised on technical solution of the present invention, give detailed embodiment and specific operating process, but the present invention
Protection domain be not limited to following embodiments.
0.5g polyester nonwovens cloth base material and 5ml maleic acids are put into Polythene Bag, with ultraviolet radiation 0.5h,
Take out the non-woven cloth after grafting and clean homopolymer with ethanol, dried to constant weight in vacuum drying oven, obtain maleic acid and contain
Measure the non-woven cloth for 30%；3ml vinyl acetates are placed in flask with 3ml crosslinking agents and heated, carry out cross-linked polymeric, are prepared
Filtering is cleaned with deionized water and ethanol after end, obtains the solid porous microballoon that vinyl acetate content is 50%；In ultrasound
Under the conditions of concussion, by the non-woven cloth that content of maleic acid is 30% and vinyl acetate content be 50% it is solid porous micro-
Ball is sufficiently mixed in dimethyl formamide solution, is taken out after 0.5h and is cleaned three times with deionized water and ethanol, in vacuum drying oven
In dry to constant weight, obtain the non-woven cloth sorbing material containing self-assembly microspheres.
Application Example 1.
The styrene solution of 5ml chromatographically pures is measured with graduated cylinder, is respectively placed in two 5L closed containers that numbering is 1,2,
40 DEG C of constant temperature overnight, makes its internal styrene liquid fully volatilize；5g microballoon/non-woven cloth is placed in No. 1 container from group
Sorbing material is filled, No. 2 containers do blank control, two groups of containers are placed under normal temperature condition into (25 DEG C), make its Static Adsorption benzene second
Alkene gas, the gas in 1ml closed containers is extracted using the gas sampling pin of gas-chromatography after 16h respectively, and be sent into gas phase color
Spectrum is detected, and follow-on test three times, is averaged, and obtains the styrene gas content in each closed container, finds No. 1 appearance
In significantly lower than No. 2 containers of gas concentration in device, by Q=(C2×V2-C1×V1)/m, every gram of adsorbent is calculated and inhales
Attached styrene 52.8mg.
Application Example 2.
The toluene solution of 5ml chromatographically pures is measured with graduated cylinder, is respectively placed in two 5L closed containers that numbering is 1,2, it is permanent
40 DEG C of temperature overnight, makes its internal toluene liquid fully volatilize；Microballoon/non-woven cloth self assembly that 5g is placed in No. 1 container is inhaled
Enclosure material, No. 2 containers do blank control, and two groups of containers are placed under normal temperature condition into (25 DEG C), make its Static Adsorption toluene gas,
Gas in 1ml closed containers is extracted respectively using the gas sampling pin of gas-chromatography after 16h, and is sent into gas-chromatography and is examined
Survey, follow-on test three times, is averaged, and obtains the toluene gas content in each closed container, finds the gas in No. 1 container
In significantly lower than No. 2 containers of concentration, by Q=(C2×V2-C1×V1)/m, every gram of adsorbent is calculated and has adsorbed toluene
66.4mg。
Application Example 3.
The styrene solution of 5ml chromatographically pures is measured with graduated cylinder, is respectively placed in two 5L closed containers that numbering is 1,2,
40 DEG C of constant temperature overnight, makes its internal styrene liquid fully volatilize；5g microballoon/non-woven cloth is placed in No. 1 container from group
Sorbing material is filled, No. 2 containers do blank control, two groups of containers are placed under normal temperature condition into (35 DEG C), make its Static Adsorption benzene second
Alkene gas, the gas in 1ml closed containers is extracted using the gas sampling pin of gas-chromatography after 8h respectively, and be sent into gas-chromatography
Detected, follow-on test three times, is averaged, and obtains the styrene gas content in each closed container, finds No. 1 container
In gas concentration significantly lower than in No. 2 containers, by Q=(C2×V2-C1×V1)/m, every gram of adsorbent absorption is calculated
Styrene 50.1mg.
Application Example 4.
The toluene solution of 5ml chromatographically pures is measured with graduated cylinder, is respectively placed in two 5L closed containers that numbering is 1,2, it is permanent
40 DEG C of temperature overnight, makes its internal toluene liquid fully volatilize；Microballoon/non-woven cloth self assembly that 5g is placed in No. 1 container is inhaled
Enclosure material, No. 2 containers do blank control, and two groups of containers are placed under normal temperature condition into (35 DEG C), make its Static Adsorption toluene gas,
Gas in 1ml closed containers is extracted respectively using the gas sampling pin of gas-chromatography after 8h, and is sent into gas-chromatography and is examined
Survey, follow-on test three times, is averaged, and obtains the toluene gas content in each closed container, finds the gas in No. 1 container
In significantly lower than No. 2 containers of concentration, by Q=(C2×V2-C1×V1)/m, every gram of adsorbent is calculated and has adsorbed toluene
64.7mg。
Above-described embodiment is the preferable implementation of the present invention, and in addition, the present invention can also be realized otherwise,
It is any without departing from the inventive concept of the premise obviously to replace within protection scope of the present invention.
Claims (5)
1. a kind of preparation method for the non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter, it is characterised in that prepare
Step is：
A) non-woven cloth pre-processes：Nonwoven substrate and the unsaturated monomer containing hydrogen donor are put into Polythene Bag, with purple
UV radiation 0.1-1h, take out the non-woven cloth after grafting and clean homopolymer with ethanol, dry to constant weight, obtain in vacuum drying oven
To the functionalization non-woven cloth that hydrogen donor content is 10%-50%；
B) preparation of functional microsphere：Unsaturated monomer 1-10ml containing hydrogen acceptor and crosslinking agent 1-10ml are placed in flask and added
Heat, cross-linked polymeric is carried out, prepare and clean filtering with deionized water and ethanol after terminating, it is 10%-50% to obtain hydrogen acceptor content
The solid porous microballoon of functionalization；
C) preparation of self assembly non-woven cloth：Under the conditions of ultrasonic vibration, by the functionalization non-woven cloth obtained in step a) with
The solid porous microballoon of functionalization obtained in step b) is sufficiently mixed in organic solvent, after 0.5-1h taking-up deionized water and
Ethanol cleans three times, is dried to constant weight in vacuum drying oven, obtains the non-woven cloth sorbing material containing self-assembly microspheres；
The organic solvent is one kind in acetonitrile, tetrahydrofuran, ethanol, dimethylformamide and methanol.
A kind of 2. preparation side of non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter according to claim 1
Method, it is characterised in that described nonwoven substrate be polypropylene nonwoven, polyethylene nonwoven cloth, polyester non-woven fabric and
Polyvinyl alcohol nonwovens.
A kind of 3. preparation side of non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter according to claim 1
Method, it is characterised in that the unsaturated monomer containing hydrogen donor is 4-Vinyl phenol, polyethylene glycol, methacrylic acid and suitable
Mixture more than one or both of butene dioic acid.
A kind of 4. preparation side of non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter according to claim 1
Method, it is characterised in that the unsaturated monomer containing hydrogen acceptor is in enamine, vinyl acetate and 4- stibazoles
One or more kinds of mixtures.
A kind of 5. preparation side of non-woven cloth containing self-assembly microspheres for adsorbing volatile organic matter according to claim 1
Method, it is characterised in that described microballoon and the mass ratio of non-woven cloth are 1: 1-5: 1.
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| CN101768865A (en) * | 2009-11-26 | 2010-07-07 | 天津工业大学 | Preparation method of ion-exchange fibre containing carboxyl and quaternary ammonium group |
| CN102861553A (en) * | 2012-08-28 | 2013-01-09 | 常州大学 | Composite adsorbing material for removing aluminium ions in natural water body and preparation method of composite adsorbing material |
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| CN101768865A (en) * | 2009-11-26 | 2010-07-07 | 天津工业大学 | Preparation method of ion-exchange fibre containing carboxyl and quaternary ammonium group |
| CN102861553A (en) * | 2012-08-28 | 2013-01-09 | 常州大学 | Composite adsorbing material for removing aluminium ions in natural water body and preparation method of composite adsorbing material |
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