CN107224867A - A kind of oyster shell whiting indoor air purification wall material and preparation method thereof - Google Patents
A kind of oyster shell whiting indoor air purification wall material and preparation method thereof Download PDFInfo
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- B01D53/34—Chemical or biological purification of waste gases
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Abstract
The invention discloses a kind of oyster shell whiting indoor air purification wall material and preparation method thereof, belong to polymer composites technical field, calculate, be made up of 30% 60% shell powder mixture, 5% 20% chitosan, 10% 40% grey calcium, 5% 20% micropore calcium metasilicates, 5% 15% calcium ferrite, 5% 20% water-washed kaoline and 10% 25% high-molecular copolymer adhesive by quality and for 100%.The material has efficient absorption, resolving harmful gas and peculiar smell, antibacterial, sterilization, anti-static function.Used chitosan can decompose harmful substance in the air such as removal formaldehyde, clearance rate is up to 99%, formaldehyde effectively can be dropped to less than 0.05% by chitosan, there is the amido (NH2) compared with high reaction activity can be chemically reacted with many gaseous harmful substances in chitosan, water and oxime is resolved into.
Description
Technical field
The invention belongs to polymer composites technical field, and in particular to it is a kind of using oyster shell whiting and chitosan for mainly into
Indoor air purification wall material divided and preparation method thereof.
Background technology
The materials such as emulsion paint, paint, composite board, leather, foam insert that interior decoration is largely used and furniture
Containing substantial amounts of volatility toxic compounds, particularly benzene, dimethylbenzene, formaldehyde, severe contamination room air, harm people are special
It is the health of children.The interior decoration wall material sold in the market is mainly emulsion paint, diatom ooze, wallpaper.These materials are all
It can not purify the air of a room, itself also contains harmful substance.Both at home and abroad to the environmental protection decoration wall material with purification air
Research is increasingly paid attention to, but up to the present in the market also without the interior decoration wall for being capable of the real pernicious gas such as decomposing formaldehyde
Material.
Having by main component of oyster shell whiting and chitosan and calcium ferrite and inorganic functional material can be in clean room
A kind of indoor purifying air decoration wall material new material of air and efficient-decomposition formaldehyde function, is following indoor air purification decoration
The development trend of wall material, it will be increasingly valued by people.
The content of the invention
In order to solve, interior decoration wall material cost present in prior art is high, energy consumption is big, itself exists and pollutes and with shellfish
Shell powder is unable to the shortcoming of the pernicious gases such as efficient-decomposition formaldehyde for the indoor air purification material of base material, and the invention provides one kind
It can be purified the air of a room and high as having for main component using oyster shell whiting and chitosan and calcium ferrite and inorganic functional material
A kind of indoor purifying air decoration wall material of decomposing formaldehyde function and preparation method thereof is imitated, the material has efficient absorption, decomposition
Pernicious gas and peculiar smell, antibacterial, sterilization, anti-static function.Used chitosan can be decomposed to be harmful in the air such as removal formaldehyde
Material, clearance rate is up to 99%, and chitosan, which effectively can drop to formaldehyde, has higher reaction in less than 0.05%, chitosan
The amido (- NH2) of activity can be chemically reacted with many gaseous harmful substances, resolve into water and oxime.
The present invention is achieved through the following technical solutions：
A kind of oyster shell whiting indoor air purification wall material, calculates by quality and for 100%, is mixed by 30%-60% oyster shell whiting
Compound, 5%-20% chitosan, 10%-40% grey calcium, 5%-20% micropores calcium metasilicate, 5%-15% calcium ferrite,
5%-20% water-washed kaoline and 10%-25% high-molecular copolymer adhesive composition.
Further, described high-molecular copolymer adhesive serves as film forming and solidification, and it is by vinylacetate-the third
Olefin(e) acid ester-vinyl versatate copolymer, ethylene-vinyl acetate copolymer and land plaster composition；The quality hundred of its each component
Point ratio is：Vinyl acetate-acrylate-vinyl versatate copolymer 20%-50%, ethylene-vinyl acetate copolymer
20%-60%, land plaster 10%-30%,
Further, described shell powder mixture is by 460 DEG C of high-temperature calcinations, crushes preparation, and the oyster shell whiting is mixed
The particle diameter of compound is the mesh of 800 mesh -1250, and shell powder mixture is Xiayi shellfish shell powder, pearl shell powder, oyster shell powder and crab shell
The mixture of powder, the mass percent of each component of its mixture is：25% Xiayi shellfish shell powder, 30% pearl shell powder, 40%
Oyster shell powder and 5% crab shell powder.
A kind of preparation method of oyster shell whiting indoor air purification wall material, is comprised the following steps that：
(1), the preparation of chitosan；
(2), the preparation of high-molecular copolymer adhesive powder：
By vinyl acetate-acrylate-vinyl versatate copolymer, the 20%- that mass percent is 20%-50%
60% ethylene-vinyl acetate copolymer and 10%-30% land plaster are uniformly mixed, and prepare high-molecular copolymer bonding
Agent powder；
(3) chitosan powder, by mass percent for 5%-20% steps (1) preparation, 10%-25% steps (2) system
Standby high-molecular copolymer adhesive powder, 30%-60% shell powder mixture, 10%-40% grey calcium, 5%-20% it is micro-
The water-washed kaoline of hole calcium metasilicate, 5%-15% calcium ferrite and 5%-20% is sufficiently mixed；
(4) when, constructing, by above-mentioned dry powder blend material by weight 1：1.5 add ordinary tap water, stand 15 minutes
Afterwards, it can be used within uniform stirring 10-20 minutes.
Further, the preparation method of the chitosan described in step (1) is as follows：
A, take 10g shrimps, crab crust to clean up, dry, crush, be subsequently placed in 100ml 2mol/L hydrochloric acid solutions reaction
4-5h, filtering, then filtered in 0 DEG C of processing 12-20h with 2mol/L hydrochloric acid, be washed to neutrality, filter out solid；
B, with aqueous slkali basic treatment 3-4h is carried out to the solid that step a is filtered out, temperature control is at 90-95 DEG C；Repetition acid,
Alkali process 1-2 times, removes calcium carbonate, phosphate, protein and pigment, and obtained solid product is washed with absolute ethyl alcohol, ether,
It is dried under reduced pressure, produces white solid chitin；
C, the chitin for taking step b to prepare are added in the sodium hydroxide solution that mass concentration is 40%-45% wherein, crust
The mass ratio of matter and sodium hydroxide solution is 1：15-20, reacts 1h under the conditions of 110 DEG C, filters, is washed with water to neutrality；According to not
With the requirement of deacetylation, 1-2 processing is repeated, is dried under reduced pressure, produced deacetylation up to 60%-99%, chitosan can be obtained.
Further, the aqueous slkali described in step (b) is sodium hydroxide and potassium hydroxide, and mass concentration is 5%-10%,
The mass ratio of sodium hydroxide and potassium hydroxide is 1:8.
Compared with prior art, the invention has the advantages that：
1st, used chitosan can decompose harmful substance in the air such as removal formaldehyde, and clearance rate is up to 99%, chitosan
Effectively can drop to formaldehyde in less than 0.05%, chitosan can be with many gas with the amido (- NH2) compared with high reaction activity
The harmful substance of state is chemically reacted, and resolves into water and oxime.
2nd, the high-molecular copolymer adhesive used serves as film forming and solidification, with stronger film forming and intensity.
Embodiment
The method of the present invention is illustrated below by specific embodiment, described embodiment is the power to the present invention
The specific descriptions that profit is required, claim includes but is not limited to described embodiment content.
Reagent and material described in following embodiments are commercially obtained unless otherwise specified；The experiment
Method, is conventional method unless otherwise specified
Embodiment 1
A kind of oyster shell whiting indoor air purification wall material, is calculated by quality and for 100%, by 30% shell powder mixture
(mesh of particle diameter 1250), 5% chitosan, 25% grey calcium, 10% micropore calcium metasilicate, 10% calcium ferrite, 10% washing
Kaolin and 10% high-molecular copolymer adhesive composition.
Wherein, described high-molecular copolymer adhesive serves as film forming and solidification, and it is by vinyl acetate-acrylic
Ester-vinyl versatate copolymer, ethylene-vinyl acetate copolymer and land plaster composition；The mass percent of its each component
For：Vinyl acetate-acrylate-vinyl versatate copolymer 20%, ethylene-vinyl acetate copolymer 20%, gypsum
Powder 10%.
Described shell powder mixture is by 460 DEG C of high-temperature calcinations, crushes preparation, the particle diameter of the shell powder mixture
For 1250 mesh, shell powder mixture is the mixture of Xiayi shellfish shell powder, pearl shell powder, oyster shell powder and crab shell powder, and it is mixed
The mass percent of each component of compound is：25% Xiayi shellfish shell powder, 30% pearl shell powder, 40% oyster shell powder and 5%
Crab shell powder.
A kind of preparation method of oyster shell whiting indoor air purification wall material of the present invention, is comprised the following steps that：
(1), the preparation of chitosan；
(2), the preparation of high-molecular copolymer adhesive powder：
Vinyl acetate-acrylate-vinyl versatate copolymer, 20% second by mass percent for 20%
Alkene-vinyl acetate co-polymer and 10% land plaster are uniformly mixed, and prepare high-molecular copolymer adhesive powder；
(3) chitosan powder, the macromolecule of 10% step (2) preparation for, preparing mass percent for 5% step (1)
Copolymer adhesive powder, 30% shell powder mixture, 25% grey calcium, 10% micropore calcium metasilicate, 10% calcium ferrite
And 10% water-washed kaoline is sufficiently mixed；
(4) when, constructing, by above-mentioned dry powder blend material by weight 1：1.5 add ordinary tap water, stand 15 minutes
Afterwards, uniform stirring can be used for 10 minutes.
Wherein, the preparation method of the chitosan described in step (1) is as follows：
A, take 10g shrimps, crab crust to clean up, dry, crush, be subsequently placed in 100ml 2mol/L hydrochloric acid solutions reaction
4h, filtering, then filtered in 0 DEG C of processing 12h with 2mol/L hydrochloric acid, be washed to neutrality, filter out solid；
B, with the sodium hydroxide and potassium hydroxide solution that mass concentration is 5%, (both mass ratioes are 1:8) step a is filtered out
Solid carry out basic treatment 3h, temperature control is at 90 DEG C；Repeat acid, alkali process 2 times, remove calcium carbonate, phosphate, protein
And pigment, obtained solid product washs with absolute ethyl alcohol, ether, is dried under reduced pressure, and produces white solid chitin；
C, the chitin for taking step b to prepare add the sodium hydroxide solution that concentration is 40%, and both mass ratioes are 1：15,
1h is reacted under the conditions of 110 DEG C, filters, is washed with water to neutrality；According to the requirement of different deacetylations, processing is repeated 2 times, decompression is dry
It is dry, produce, deacetylation reaches 60%-99%.Chitosan can be obtained.
Embodiment 2
A kind of oyster shell whiting indoor air purification wall material, is calculated by quality and for 100%, by 35% shell powder mixture
(mesh of particle diameter 800), 10% chitosan, 15% grey calcium, 10% micropore calcium metasilicate, 10% calcium ferrite, 10% washing
Kaolin and 10% high-molecular copolymer adhesive composition.
Preparation method be the same as Example 1.
Embodiment 3
A kind of oyster shell whiting indoor air purification wall material, is calculated by quality and for 100%, by 40% shell powder mixture
(mesh of particle diameter 1250), 10% chitosan, 10% grey calcium, 10% micropore calcium metasilicate, 5% calcium ferrite, 10% washing
Kaolin and 15% high-molecular copolymer adhesive composition.
Preparation method be the same as Example 1.
Embodiment 4
A kind of oyster shell whiting indoor air purification wall material, is calculated by quality and for 100%, by 40% shell powder mixture
(mesh of particle diameter 1250), 5% chitosan, 10% grey calcium, 10% micropore calcium metasilicate, 5% calcium ferrite, 15% washing are high
Ridge soil and 15% high-molecular copolymer adhesive composition.
Preparation method be the same as Example 1.
Embodiment 5
A kind of oyster shell whiting indoor air purification wall material, is calculated by quality and for 100%, by 45% shell powder mixture
(mesh of particle diameter 1250), 8% chitosan, 10% grey calcium, 10% micropore calcium metasilicate, 5% calcium ferrite, 10% washing are high
Ridge soil and 12% high-molecular copolymer adhesive composition.
Preparation method be the same as Example 1.
Embodiment 6
A kind of indoor air purification wall material, is calculated by quality and for 100%, by 50% shell powder mixture (particle diameter
1250 mesh), 5% chitosan, 10% grey calcium, 10% micropore calcium metasilicate, 5% calcium ferrite, 5% water-washed kaoline and
15% high-molecular copolymer adhesive composition.
Preparation method be the same as Example 1.
Embodiment 7
A kind of oyster shell whiting indoor air purification wall material, is calculated by quality and for 100%, by 50% shell powder mixture
(mesh of particle diameter 800), 5% chitosan, 10% grey calcium, 5% micropore calcium metasilicate, 5% calcium ferrite, 5% washing kaolinite
Soil and 20% high-molecular copolymer adhesive composition.
Preparation method be the same as Example 1.
Claims (6)
1. a kind of oyster shell whiting indoor air purification wall material, it is characterised in that calculated by quality and for 100%, by 30%-60%'s
Shell powder mixture, 5%-20% chitosan, 10%-40% grey calcium, 5%-20% micropores calcium metasilicates, 5%-15%
The high-molecular copolymer adhesive composition of calcium ferrite, 5%-20% water-washed kaoline and 10%-25%.
2. a kind of oyster shell whiting indoor air purification wall material as claimed in claim 1, it is characterised in that described polymer copolymerization
Thing adhesive serves as film forming and solidification, and it is by vinyl acetate-acrylate-vinyl versatate copolymer, ethene-vinegar
Vinyl acetate copolymer and land plaster composition；The mass percent of its each component is：Vinyl acetate-acrylate-versatic acid
Vinyl ester copolymers 20%-50%, ethylene-vinyl acetate copolymer 20%-60%, land plaster 10%-30%,
3. a kind of oyster shell whiting indoor air purification wall material as claimed in claim 1, it is characterised in that described oyster shell whiting mixing
Thing is by 460 DEG C of high-temperature calcinations, crushes preparation, and the particle diameter of the shell powder mixture is the mesh of 800 mesh -1250, and oyster shell whiting is mixed
Compound is the mixture of Xiayi shellfish shell powder, pearl shell powder, oyster shell powder and crab shell powder, the quality of each component of its mixture
Percentage is：25% Xiayi shellfish shell powder, 30% pearl shell powder, 40% oyster shell powder and 5% crab shell powder.
4. a kind of preparation method of oyster shell whiting indoor air purification wall material as claimed in claim 1, it is characterised in that its step
It is as follows：
(1), the preparation of chitosan；
(2), the preparation of high-molecular copolymer adhesive powder：
By vinyl acetate-acrylate-vinyl versatate copolymer, the 20%-60% that mass percent is 20%-50%
Ethylene-vinyl acetate copolymer and 10%-30% land plaster uniformly mix, prepare high-molecular copolymer binding agent powder
Body；
(3), by mass percent be 5%-20% steps (1) prepare chitosan powder, 10%-25% steps (2) prepare
High-molecular copolymer adhesive powder, 30%-60% shell powder mixture, 10%-40% grey calcium, 5%-20% micropores are inclined
The water-washed kaoline of calcium silicates, 5%-15% calcium ferrite and 5%-20% is sufficiently mixed；
(4) when, constructing, by above-mentioned dry powder blend material by weight 1：1.5 add ordinary tap water, after standing 15 minutes,
Even stirring can be used for 10-20 minutes.
5. a kind of preparation method of oyster shell whiting indoor air purification wall material as claimed in claim 4, it is characterised in that：Step
(1) preparation method of the chitosan described in is as follows：
A, take 10g shrimps, crab crust to clean up, dry, crush, be subsequently placed in 100ml 2mol/L hydrochloric acid solutions reaction 4-5h,
Filtering, then filtered in 0 DEG C of processing 12-20h with 2mol/L hydrochloric acid, be washed to neutrality, filter out solid；
B, with aqueous slkali basic treatment 3-4h is carried out to the solid that step a is filtered out, temperature control is at 90-95 DEG C；Repeat at sour, alkali
Reason 1-2 times, removes calcium carbonate, phosphate, protein and pigment, obtained solid product is washed with absolute ethyl alcohol, ether, depressurizes
Dry, produce white solid chitin；
C, the chitin for taking step b to prepare are added in the sodium hydroxide solution that mass concentration is 40%-45%, wherein, chitin
Mass ratio with sodium hydroxide solution is 1：15-20, reacts 1h under the conditions of 110 DEG C, filters, is washed with water to neutrality；According to difference
The requirement of deacetylation, repeats 1-2 processing, is dried under reduced pressure, and produces deacetylation up to 60%-99%, can obtain chitosan.
6. a kind of preparation method of oyster shell whiting indoor air purification wall material as claimed in claim 5, it is characterised in that：Step
(b) aqueous slkali described in is sodium hydroxide and potassium hydroxide, and mass concentration is 5%-10%, sodium hydroxide and potassium hydroxide matter
Amount is than being 1:8.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107603294A (en) * | 2017-10-09 | 2018-01-19 | 七彩贝壳新材料科技股份有限公司 | A kind of shell magma coating that can remove formaldehyde and preparation method thereof |
| CN108160035A (en) * | 2018-01-16 | 2018-06-15 | 于铭谦 | Air purifying preparation and preparation method thereof |
| CN109794159A (en) * | 2017-11-17 | 2019-05-24 | 上海青木环保工程有限公司 | A kind of preparation method of the formaldehyde scavenger using biological decomposition |
| CN111572146A (en) * | 2020-05-16 | 2020-08-25 | 江苏郁林生塑木科技有限公司 | Plastic-wood composite material plate with adsorption and purification functions and preparation method thereof |
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| CN107603294A (en) * | 2017-10-09 | 2018-01-19 | 七彩贝壳新材料科技股份有限公司 | A kind of shell magma coating that can remove formaldehyde and preparation method thereof |
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| CN108160035A (en) * | 2018-01-16 | 2018-06-15 | 于铭谦 | Air purifying preparation and preparation method thereof |
| CN111572146A (en) * | 2020-05-16 | 2020-08-25 | 江苏郁林生塑木科技有限公司 | Plastic-wood composite material plate with adsorption and purification functions and preparation method thereof |
| CN111572146B (en) * | 2020-05-16 | 2022-04-15 | 江苏郁林生塑木科技有限公司 | Plastic-wood composite material plate with adsorption and purification functions and preparation method thereof |
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Application publication date: 20171003 |