CN101974263A - Coating for removing formaldehyde in indoor air - Google Patents

Coating for removing formaldehyde in indoor air Download PDF

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Publication number
CN101974263A
CN101974263A CN 201010511090 CN201010511090A CN101974263A CN 101974263 A CN101974263 A CN 101974263A CN 201010511090 CN201010511090 CN 201010511090 CN 201010511090 A CN201010511090 A CN 201010511090A CN 101974263 A CN101974263 A CN 101974263A
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China
Prior art keywords
formaldehyde
coating
tio
carbon black
white carbon
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Pending
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CN 201010511090
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Chinese (zh)
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王秀宝
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王秀宝
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Priority to CN 201010511090 priority Critical patent/CN101974263A/en
Publication of CN101974263A publication Critical patent/CN101974263A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a non-toxic environmental-friendly odorless coating for removing formaldehyde in indoor air, which is a mat coat material mainly applicable to inner wall surfaces, ceilings, pillar surfaces, and the like of buildings. The coating is characterized by adding 6-9g of nano TiO2/white carbon black composite material into each square meter of interior wall coating, and the nano TiO2/white carbon black composite material is a formaldehyde removing agent. The coating can be used for eliminating and reducing formaldehyde harm, fixing and absorbing formaldehyde in the interior wall coating and absorbing formaldehyde in air at the same time.

Description

Remove formaldehyde in indoor air coating
Technical field
The present invention relates to a kind of interior wall coating, relate in particular to a kind of asepsis environment-protecting, the scentless formaldehyde in indoor air coating that removes, mainly be applicable to the covering material of interior of building metope, ceiling, cylinder etc.
Background technology
Interior wall coating also can be used as ceiling coating, and its major function is to decorate and protection inner wall surface and ceiling, sets up a beautiful and comfortable living environment.Interior wall coating should have following performance: rich color, exquisiteness, coordination; Alkaline-resisting, water-tolerant are difficult for efflorescence; Air permeability and good, moisture absorption hydrofuge; Brushing is convenient, recoatability is good; Nontoxic, pollution-free.But interior wall coating of the prior art does not have the effect of removing formaldehyde in indoor air.
Aldehyde radical is arranged in the formaldehyde molecule, is a kind of important organic raw material, is irritant gas colourless, that have overpowering odor.The decoration on metope, ground is laid, and always has formaldehyde and discharges.Often suck a small amount of formaldehyde, can cause chronic poisoning, mucous hyperemia, skin irritation disease, allergic dermatitis, nail angling and fragility, nail matrix finger tip pain etc. occur.Constitutional symptom have headache, weak, that stomach is received is poor, palpitaition, have a sleepless night, lose weight and autonomic nervous dysfunction etc.Formaldehyde mainly contains the following aspects to Health hazard: hormesis, the main harm of formaldehyde shows as Mucocutaneous hormesis, formaldehyde is the protoplasmic poison material, can occur the serious stimulation of respiratory tract and oedema, eye stimulation when sucking, have a headache with protein bound, high density; Sensitization, skin directly contact formaldehyde can cause allergic dermatitis, color spot, necrosis, can bring out bronchial asthma when sucking high-concentration formaldehyde.Mutagenesis, high-concentration formaldehyde still are a kind of genotoxicity material.Laboratory animal can cause rhinopharyngeal neoplasm under the situation that the laboratory high density sucks.Indoor is human topmost activity space, people every day the indoor live and work time at least more than 12 hours, room air has fundamental influence to human beings'health.Because technology and material are limit, in making indoor furniture and fitment process, also can't total ban use the starting material that contain formaldehyde components at present, can't remove the harm of formaldehyde from the source, use owing to can not limit formaldehyde comprehensively, eliminating and reducing formaldehyde harm is the task of top priority.
Summary of the invention
The present invention is directed to the problem that exists in the above-mentioned conventional art, explore through great efforts and study, a kind of formaldehyde in indoor air coating that removes is provided, in interior wall coating, add and remove the formaldehyde agent, it is nano TiO 2/white carbon black composite material, eliminate and reduce formaldehyde harm, fixing and absorb formaldehyde in the interior wall coating; Simultaneously can also absorb airborne formaldehyde; Solved the problem that interior wall coating in the prior art can't absorb formaldehyde in indoor air.。
Technical scheme of the present invention is as follows:
Add the 6-9g nano-TiO in every square metre of interior wall coating 2/ white carbon black composite material, nano-TiO 2/ white carbon black composite material is except that the formaldehyde agent.
Described interior wall coating is swabbing material, paint, solvent based coating, emulsion paint, water soluble paint and multicolour pattern interior wall coating.
Described swabbing material is to add the 36g nano-TiO in the 1000g whitewash 2/ white carbon black composite material promptly adds 6g except that the formaldehyde agent in every square metre of finish paint.
Described paint is to add the 14g nano-TiO in the 1000g paint 2/ white carbon black composite material promptly adds 7g except that the formaldehyde agent in every square metre of paint.
Described solvent based coating is to add the 16g nano-TiO in the 1000g acrylate paint 2/ white carbon black composite material promptly adds 8g except that the formaldehyde agent in every square metre of acrylate paint.
Described emulsion paint is to add the 27g nano-TiO in the 1000g polyvinyl acetate lacquer 2/ white carbon black composite material promptly adds 9g except that the formaldehyde agent in every square metre of polyvinyl acetate lacquer.
Described water soluble paint is to add the 32g nano-TiO in the 1000g polyvinyl alcohol water glass interior wall coating 2/ white carbon black composite material promptly adds 6.5g except that the formaldehyde agent in every square metre of polyvinyl alcohol water glass interior wall coating.
Described multicolour pattern interior wall coating is to add the 9g nano-TiO in the 1000g multicolour pattern interior wall coating 2/ white carbon black composite material promptly adds 9g except that the formaldehyde agent in every square metre of multicolour pattern interior wall coating.
Advantageous effect of the present invention is as follows:
It is key of the present invention that adding removes the formaldehyde agent, crosses the major general and does not reach except that the formaldehyde effect, too much will influence every index of material.Studies show that the Nano/micron composite particles is meant two or more micron, the ultrafine particle that nanoparticle forms after surface coating and Combined Processing.When nanoparticle and micron particle are carried out suitable compound tense, the composite particles that makes had often both had the characteristic of nanoparticle, but also can make micron particle show the characteristic of nanoparticle.
The main effect of carrier has:
(1) carrier is with TiO 2Fix and to prevent TiO 2The loss of powder particle and be easy to recycle has overcome suspending phase TiO 2Shortcoming.
(2) carrier can improve TiO 2Utilization ratio, promptly covered one deck TiO at carrier surface 2, increased TiO 2Specific surface area, and then increased effective TiO 2Amount.
(3) some carriers can same TiO 2Interact, help electronics (e -) and (h +) separation and increase absorption to reactant, improve TiO 2Photocatalytic activity.
(4) utilization ratio of raising light source is with TiO 2After making film, do not have the problem of covering between catalyst particle, being subjected to light-struck catalyst particle number increases, and helps improving photocatalytic activity.
(5) with carrier catalyzer is fixed, be convenient to catalyzer is carried out finishing and makes the reactor of different shape.
At present, formaldehyde gas improvement method mainly contains physisorphtion, chemical reaction method, catalytic oxidation, biological process, composite algorithm and cold plasma method.The whole bag of tricks relatively, photocatalytic oxidation have at room temperature can use, advantages such as energy consumption is low, non-secondary pollution, be a kind of novel method that purifies air that has a extensive future.In view of above reason, utilize the nano-TiO of preparation 2/ white carbon black composite material has carried out the research of photocatalytic degradation formaldehyde gas, is used for the feasibility that formaldehyde gas purifies with the composite catalyst of exploring this research preparation.Nano-TiO 2/ white carbon black composite material repeated experiment studies show that the composite catalyst recycling of Experiment Preparation is convenient, has stability and reusability preferably, and this feature is significant to its practical application.
Photocatalytic oxidation is a kind of novel environmental cleaning technique that recent two decades grows up, it have the reaction conditions gentleness, with low cost, can make full use of characteristics such as luminous energy, energy consumption are low, non-secondary pollution, the many organism that are difficult to biological degradation or are difficult to handle of degradable by other chemical process, therefore, photocatalytic oxidation has very wide application prospect in the sterilization of tap water and the aspects such as advanced treatment of virus killing, various bio-refractory organic waste water, industry and sanitary wastewater.
This composite photocatalyst material all has excellent photocatalytic performance and stability and repeat performance good under UV-light and sunlight and fluorescent lamp.Under sunlight, the percent of decolourization and the COD clearance of Rhodamine-B solution have all reached more than 95% in the 2h; The degradation rate of phenol reaches 99.18% in the 6h; COD degradation rate 95.59%; Under the fluorescent lamp irradiation, 24h Degradation Formaldehyde rate is greater than 80%.With the nano titanium oxide success be carried on the white carbon black surface, prepare nano-TiO 2/ white carbon black composite material is used for administering waste water, waste gas, and both comprehensive advantages of the two can overcome the two deficiency again, has developed the novel method of a kind of environmental improvement and the utilization of resources simultaneously again.TiO 2Photocatalysis oxidation technique can utilize sunlight to be used for environmental improvement for main energy sources, and this Products Development utilization, more has outstanding meaning at the today the energy, the environment two large problems puzzlement mankind.Only the 24h formaldehyde content reaches or near the E1 level environmental protection standard that country's " IAQ (indoor air quality) standard " G B 18883-2002 regulation both it has often been said, is suitable for penetration and promotion.
Interior wall coating of the present invention can not only improve indoor art environment, makes people obtain beautiful enjoyment, except that having multiple functions such as thermal insulation, protection against the tide, fire prevention, ventilative, fine and smooth coordination, also has the effect of free formaldehyde in unique absorption, the degraded room air.
In temperature (20 ± 2) ℃, after the monitoring, the assay of monitoring analysis report is as follows under the condition of relative humidity (50 ± 10) % through building material industry environmental monitoring center in the present invention:
Conclusion, purifying formaldehyde efficient assay of the present invention meet the requirement of " 1 class material " in JC/T1074-2008 " the function of purifying indoor air coating material purifying property " standard.The present invention can fix and absorb the formaldehyde in the interior wall coating; Simultaneously can also absorb airborne formaldehyde.
Embodiment
In conjunction with specific embodiments, specifically describe as follows to production technique of the present invention:
Embodiment 1
During construction, add the 36g nano-TiO in the 1000g whitewash 2/ white carbon black composite material promptly adds 6g except that the formaldehyde agent in every square metre of finish paint.
Embodiment 2
Add the 14g nano-TiO in the 1000g paint 2/ white carbon black composite material promptly adds 7g except that the formaldehyde agent in every square metre of paint.
Embodiment 3
Add the 16g nano-TiO in the 1000g acrylate paint 2/ white carbon black composite material promptly adds 8g except that the formaldehyde agent in every square metre of acrylate paint.
Embodiment 4
Add the 27g nano-TiO in the 1000g polyvinyl acetate lacquer 2/ white carbon black composite material promptly adds 9g except that the formaldehyde agent in every square metre of polyvinyl acetate lacquer.
Embodiment 5
Add the 32g nano-TiO in the 1000g polyvinyl alcohol water glass interior wall coating 2/ white carbon black composite material promptly adds 6.5g except that the formaldehyde agent in every square metre of polyvinyl alcohol water glass interior wall coating.
Embodiment 6
Add the 9g nano-TiO in the 1000g multicolour pattern interior wall coating 2/ white carbon black composite material promptly adds 9g except that the formaldehyde agent in every square metre of multicolour pattern interior wall coating.
Nano-TiO 2/ white carbon black composite material is with white carbon black loaded with nano TiO 2Material, on the white carbon black surface uniform loading crystal formation be the nano-TiO of anatase titanium dioxide 2Particle; TiO 2Grain fineness number is about 12nm; TiO 2Combine between particle and the white carbon black closely; TiO 2Coating thickness 200nm~300nm; TiO 2Charge capacity is 15%~60% of a white carbon black quality.

Claims (8)

1. remove formaldehyde in indoor air coating, it is characterized in that adding in every square metre of interior wall coating the 6-9g nano-TiO 2/ white carbon black composite material, nano-TiO 2/ white carbon black composite material is except that the formaldehyde agent.
2. the formaldehyde in indoor air coating that removes according to claim 1 is characterized in that described interior wall coating is swabbing material, paint, solvent based coating, emulsion paint, water soluble paint and multicolour pattern interior wall coating.
3. the formaldehyde in indoor air coating that removes according to claim 2 is characterized in that described swabbing material is, adds the 36g nano-TiO in the 1000g whitewash 2/ white carbon black composite material promptly adds 6g except that the formaldehyde agent in every square metre of finish paint.
4. the formaldehyde in indoor air coating that removes according to claim 2 is characterized in that described paint is, adds the 14g nano-TiO in the 1000g paint 2/ white carbon black composite material promptly adds 7g except that the formaldehyde agent in every square metre of paint.
5. the formaldehyde in indoor air coating that removes according to claim 2 is characterized in that described solvent based coating is, adds the 16g nano-TiO in the 1000g acrylate paint 2/ white carbon black composite material promptly adds 8g except that the formaldehyde agent in every square metre of acrylate paint.
6. the formaldehyde in indoor air coating that removes according to claim 2 is characterized in that described emulsion paint is, adds the 27g nano-TiO in the 1000g polyvinyl acetate lacquer 2/ white carbon black composite material promptly adds 9g except that the formaldehyde agent in every square metre of polyvinyl acetate lacquer.
7. the formaldehyde in indoor air coating that removes according to claim 2 is characterized in that described water soluble paint is, adds the 32g nano-TiO in the 1000g polyvinyl alcohol water glass interior wall coating 2/ white carbon black composite material promptly adds 6.5g except that the formaldehyde agent in every square metre of polyvinyl alcohol water glass interior wall coating.
8. the formaldehyde in indoor air coating that removes according to claim 2 is characterized in that described multicolour pattern interior wall coating is, adds the 9g nano-TiO in the 1000g multicolour pattern interior wall coating 2/ white carbon black composite material promptly adds 9g except that the formaldehyde agent in every square metre of multicolour pattern interior wall coating.
CN 201010511090 2010-10-19 2010-10-19 Coating for removing formaldehyde in indoor air Pending CN101974263A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102277050A (en) * 2011-07-11 2011-12-14 邯郸派瑞电器有限公司 Environmental-friendly aqueous internal wall coating material with formaldehyde-removing function and manufacturing method thereof
CN102936433A (en) * 2012-11-21 2013-02-20 福建裕和皓月生物工程材料有限公司 Composition for purifying formaldehyde in indoor air
CN104046156A (en) * 2014-06-30 2014-09-17 南通蛇类治疗研究所 Nano multicolor interior wall environment-friendly paint
CN105111812A (en) * 2015-08-25 2015-12-02 无锡市长安曙光手套厂 Light catalyst paint for removing formaldehyde in indoor air
CN106630747A (en) * 2016-10-18 2017-05-10 佟朝富 Ecological shell powder embossment coating and interior wall embossment construction method
CN109096800A (en) * 2018-06-26 2018-12-28 武汉科技大学 A kind of Environment-friendlyinternal internal wall paint prepared using optical fibre prefabricated bar waste material powder
CN111334102A (en) * 2020-01-19 2020-06-26 广西正花涂料有限公司 Moisture-proof and mildew-proof dry powder coating

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1427045A (en) * 2001-12-21 2003-07-02 吴际平 Product used for eliminating aldehyde like harmful substance
CN1982379A (en) * 2005-12-15 2007-06-20 朱文明 Inner-wall coating composition
CN101239481A (en) * 2008-02-18 2008-08-13 王秀宝 Method for preparing high-density plate, printing floor and formaldehyde-absorbing floor
CN101857771A (en) * 2010-06-28 2010-10-13 成都拓利化工实业有限公司 High-strength RTV hydrophobic, long-acting and anti-fouling flashing coating and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1427045A (en) * 2001-12-21 2003-07-02 吴际平 Product used for eliminating aldehyde like harmful substance
CN1982379A (en) * 2005-12-15 2007-06-20 朱文明 Inner-wall coating composition
CN101239481A (en) * 2008-02-18 2008-08-13 王秀宝 Method for preparing high-density plate, printing floor and formaldehyde-absorbing floor
CN101857771A (en) * 2010-06-28 2010-10-13 成都拓利化工实业有限公司 High-strength RTV hydrophobic, long-acting and anti-fouling flashing coating and preparation method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102277050A (en) * 2011-07-11 2011-12-14 邯郸派瑞电器有限公司 Environmental-friendly aqueous internal wall coating material with formaldehyde-removing function and manufacturing method thereof
CN102277050B (en) * 2011-07-11 2014-05-28 邯郸派瑞电器有限公司 Environmental-friendly aqueous internal wall coating material with formaldehyde-removing function and manufacturing method thereof
CN102936433A (en) * 2012-11-21 2013-02-20 福建裕和皓月生物工程材料有限公司 Composition for purifying formaldehyde in indoor air
CN102936433B (en) * 2012-11-21 2014-02-19 福建裕和皓月生物工程材料有限公司 Composition for purifying formaldehyde in indoor air
CN104046156A (en) * 2014-06-30 2014-09-17 南通蛇类治疗研究所 Nano multicolor interior wall environment-friendly paint
CN104046156B (en) * 2014-06-30 2016-08-24 南通蛇类治疗研究所 Nano colorful green inner wall paint
CN105111812A (en) * 2015-08-25 2015-12-02 无锡市长安曙光手套厂 Light catalyst paint for removing formaldehyde in indoor air
CN106630747A (en) * 2016-10-18 2017-05-10 佟朝富 Ecological shell powder embossment coating and interior wall embossment construction method
CN109096800A (en) * 2018-06-26 2018-12-28 武汉科技大学 A kind of Environment-friendlyinternal internal wall paint prepared using optical fibre prefabricated bar waste material powder
CN111334102A (en) * 2020-01-19 2020-06-26 广西正花涂料有限公司 Moisture-proof and mildew-proof dry powder coating

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Open date: 20110216