CN101250382B - Method for eliminating free formaldehyde in adhesive for machining woodwork by using persulfate - Google Patents
Method for eliminating free formaldehyde in adhesive for machining woodwork by using persulfate Download PDFInfo
- Publication number
- CN101250382B CN101250382B CN2008100471625A CN200810047162A CN101250382B CN 101250382 B CN101250382 B CN 101250382B CN 2008100471625 A CN2008100471625 A CN 2008100471625A CN 200810047162 A CN200810047162 A CN 200810047162A CN 101250382 B CN101250382 B CN 101250382B
- Authority
- CN
- China
- Prior art keywords
- sizing agent
- persulphate
- free formaldehyde
- woodwork
- tackiness agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention relates to a method for eliminating free formaldehyde in tackiness agent for processing wooden wares, which relates to a method for eliminating free formaldehyde in tackiness agent for processing wooden wares by persulfate. The method is characterized in that the method comprises the following steps: firstly, preparing persulfate into persulfate solution whose mass concentration is 17%-20%, secondly, adopting one of the following two modes, first, adding persulfate solution in tackiness agent for processing wooden wares, wherein the adding amount of presulfate is 10%-12% of the weight of tackiness agent for processing wooden wares, second, adding persulfate solution after tackiness agent polymerization reaction is finished in the process for producing tackiness agent for processing wooden wares, wherein adding amount of persulfate is 10%-12% of the tackiness agent mass after polymerization reaction in producing tackiness agent for processing wooden wares, thirdly, evenlystirring, reacting 14-16 minutes under 45 DEG C to 90 DEG C. The method of the invention has the advantages of high efficiency, innocuity, environmental protection and simple method, the content of free formaldehyde in tackiness agent after being processed is only 0.02%, which is 0.3% which is further lower than national standard.
Description
Technical field
The present invention relates to a kind of method of woodwork processing that be used for eliminating with the free formaldehyde of sizing agent.
Background technology
Formaldehyde is the very strong carcinogenic substance of being determined by the World Health Organization of a kind of toxicity.The sizing agents such as resol, vinyl-formal resin or terpolycyantoamino-formaldehyde resin of woodwork processing usefulness all contain a certain amount of free formaldehyde, have in addition up to 2%～3%.These sizing agents are widely used in the gummed of woodwork or fiberboard, and free formaldehyde can be diffused in the air in furniture of making or the glued board, thus serious environment pollution, and human body caused murder by poisoning.
At present, remove formaldehyde gas and adopt the absorption decomposition method usually, sorbent used is porous materials such as gac, diatomite, silicon-dioxide, and also the someone adopts the optically catalytic TiO 2 method to come degradation of formaldehyde.But these methods usually all be the formaldehyde gas that woodworks such as indoor furniture are discharged to be removed, and fails from woodwork free formaldehyde pollution problems such as source solution furniture.For example, the absorption decomposition method that patent CN 03104741 (absorption of indoor harmful gas formaldehyde, the using method of decomposition agent) uses, in short duration, reduced the free formaldehyde content in the room air, but in the near future, formaldehyde gas still can constantly discharge from woodworks such as furniture, so this method can not fundamentally solve the formaldehyde pollution problem of woodworks such as furniture.Additive method for example, adds trapping agent and formaldehyde generation chemical reaction in sizing agent, thereby absorb free formaldehyde, but this method also has negative impact, because some trapping agent mainly are amine, phenols or aminocompound, itself also can cause murder by poisoning to HUMAN HEALTH.Therefore need to seek a kind of new, can solve the method for woodwork free formaldehyde pollution problems such as furniture from the source.
Summary of the invention
The object of the present invention is to provide and a kind ofly eliminate the method for woodwork processing with free formaldehyde in the sizing agent with persulphate, it is simple with efficient height, asepsis environment-protecting, the method for free formaldehyde in the sizing agent that this method is eliminated woodwork processing.
To achieve these goals, technical scheme of the present invention is: a kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it is characterized in that it comprises the steps:
1) persulphate being mixed with mass concentration is 17%～20% persulfate solution;
2) adopt one of following two kinds of modes: (1) adds persulfate solution in woodwork is processed with sizing agent, and the add-on of persulphate is woodwork processing 10%～12% of a sizing agent quality; (2) after woodwork processing treats that the sizing agent polyreaction is finished in sizing agent production, add persulfate solution, the add-on of persulphate is woodwork processing with 10%～12% of the sizing agent quality after polyreaction is finished in the sizing agent production;
3) stir, reaction got final product in 14～16 minutes under 45 ℃～90 ℃;
Described woodwork processing is the sizing agents such as resol, vinyl-formal resin or terpolycyantoamino-formaldehyde resin that contain free formaldehyde with sizing agent.
The formaldehyde content that dissociates in the sizing agent after the oxidation only is 0.02%, far below 0.3% of GB/T14732-2006 relevant regulations, thereby reaches the purpose of eliminating free formaldehyde wood furniture and other woodwork from the source.
Described persulphate is ammonium persulphate, Sodium Persulfate, Potassium Persulphate or other persulphate.
The present invention utilizes persulphate and formaldehyde generation redox reaction, is carbonic acid gas with deleterious oxidation of formaldehyde.Its reaction equation is as follows:
2S
2O
8 2-+HCHO+H
2O＝＝CO
2+4SO
4 2-+4H
+
The present invention compared with prior art the invention has the beneficial effects as follows:
1. the present invention adopts oxidation reduction process to eliminate woodwork processing with free formaldehyde in the sizing agent, can reach free formaldehyde from source elimination wood furniture and other woodwork; Eliminate formaldehyde efficient height, asepsis environment-protecting.
2. method is simple: the present invention does not need complex apparatus and harsh external conditions.
3. persulphate of the present invention (oxygenant) can be harmless carbonic acid gas and water with free oxidation of formaldehyde in the resin sizing agent, to the environment non-secondary pollution.
4. the persulphate scope of application of the present invention is extensive, can be used for sizing agents such as resol, vinyl-formal resin or terpolycyantoamino-formaldehyde resin and other contains the processing of the sizing agent and the organic system of free formaldehyde.
5. free formaldehyde content only is 0.02% far below 0.3% of national standard in the sizing agent after this persulphate is handled.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1:
A kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it comprises the steps:
1) choosing woodwork processing with sizing agent is: containing free formaldehyde is the vinyl-formal resin 50.0g of 1% (quality), ammonium persulphate 5.6g;
2) above-mentioned ammonium persulphate is joined in the vinyl-formal resin sizing agent after with the 25.5g water dissolution, stir, 85 ℃ of reactions 15 minutes;
3) discharging is pressed GB/T14074-2006 and is detected free formaldehyde content about 0.02% in the vinyl-formal resin.
Embodiment 2:
A kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it comprises the steps:
1) choosing woodwork processing with sizing agent is: containing free formaldehyde is the phenolic resin adhesive 30.0g of 1% (quality), ammonium persulphate 3.0g;
2) above-mentioned ammonium persulphate is joined in the phenolic resin adhesive after with the 13.6g water dissolution, stir, 85 ℃ of reactions are after 15 minutes;
3) discharging is pressed GB/T14074-2006 and is detected free formaldehyde content about 0.03% in the resol.
Embodiment 3:
A kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it comprises the steps:
1) choosing woodwork processing with sizing agent is: containing free formaldehyde is the glutinous agent 10.0g of melamine-formaldehyde resin adhesive of 1% (quality), ammonium persulphate 1.2g;
2) above-mentioned ammonium persulphate is joined after with the 5.0g water dissolution in the glutinous agent of melamine-formaldehyde resin adhesive, stir, about 15 minutes of 85 ℃ of reactions;
3) discharging is pressed GB/T14074-2006 and is detected free formaldehyde about 0.02% in the terpolycyantoamino-formaldehyde resin.
Embodiment 4:
A kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it comprises the steps:
1) choosing woodwork processing with sizing agent is: containing free formaldehyde is the phenolic resin adhesive 50.0g of 1% (quality), ammonium persulphate 5.6g;
2) above-mentioned ammonium persulphate is joined in the phenolic resin adhesive after with the 25.5g water dissolution, stir, 45 ℃ of reactions 16 minutes;
3) discharging is pressed GB/T14074-2006 and is detected free formaldehyde content about 0.02% in the resol.
Embodiment 5:
A kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it comprises the steps:
1) choosing woodwork processing with sizing agent is: containing free formaldehyde is the phenolic resin adhesive 100.0g of 1.0% (quality), Potassium Persulphate 11.0g;
2) above-mentioned Potassium Persulphate is joined in the phenolic resin adhesive after with the 46.8g water dissolution, stir, about 14 minutes of 90 ℃ of reactions;
3) discharging is pressed GB/T14074-2006 and is detected free formaldehyde about 0.02% in the resol.
Embodiment 6:
A kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it comprises the steps:
1) persulphate being mixed with mass concentration is 17% persulfate solution, and described persulphate is an ammonium persulphate;
2) add persulfate solution in woodwork is processed with sizing agent, the add-on of persulphate is woodwork processing 10% of a sizing agent quality; Described woodwork processing is the phenolic resin adhesive that contains free formaldehyde with sizing agent;
3) stir, reaction got final product in 14 minutes under 45 ℃.
Embodiment 7:
A kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it comprises the steps:
1) persulphate being mixed with mass concentration is 20% persulfate solution, and described persulphate is a Sodium Persulfate;
2) add persulfate solution in woodwork is processed with sizing agent, the add-on of persulphate is woodwork processing 12% of a sizing agent quality; Described woodwork processing is the vinyl-formal resin sizing agent that contains free formaldehyde with sizing agent;
3) stir, reaction got final product in 16 minutes under 90 ℃.
Embodiment 8:
A kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it comprises the steps:
1) persulphate being mixed with mass concentration is 17% persulfate solution, and described persulphate is a Potassium Persulphate;
2) after woodwork processing treats that the sizing agent polyreaction is finished in sizing agent production, add persulfate solution, the add-on of persulphate is woodwork processing with 10% of the sizing agent quality after polyreaction is finished in the sizing agent production; Described woodwork processing is the glutinous agent of melamine-formaldehyde resin adhesive that contains free formaldehyde with sizing agent;
3) stir, reaction got final product in 14 minutes under 45 ℃.
Embodiment 9:
A kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it comprises the steps:
1) persulphate being mixed with mass concentration is 19% persulfate solution; Described persulphate is an ammonium persulphate;
2) after woodwork processing treats that the sizing agent polyreaction is finished in sizing agent production, add persulfate solution, the add-on of persulphate is woodwork processing with 11% of the sizing agent quality after polyreaction is finished in the sizing agent production; Described woodwork processing is the vinyl-formal resin sizing agent that contains free formaldehyde with sizing agent;
3) stir, reaction got final product in 15 minutes under 50 ℃.
All sizing agents that contain free formaldehyde are applicable to the present invention, and all persulphates can both be realized the present invention, do not enumerate embodiment one by one at this.
Claims (2)
1. the method with free formaldehyde in the persulphate elimination woodwork processing usefulness sizing agent is characterized in that it comprises the steps:
1) persulphate being mixed with mass concentration is 17%～20% persulfate solution;
2) adopt one of following two kinds of modes: (1) adds persulfate solution in woodwork is processed with sizing agent, and the add-on of persulphate is woodwork processing 10%～12% of a sizing agent quality; (2) after woodwork processing treats that the sizing agent polyreaction is finished in sizing agent production, add persulfate solution, the add-on of persulphate is woodwork processing with 10%～12% of the sizing agent quality after polyreaction is finished in the sizing agent production;
3) stir, reaction got final product in 14～16 minutes under 45 ℃～90 ℃;
Described woodwork processing is resol, vinyl-formal resin or the terpolycyantoamino-formaldehyde resin that contains free formaldehyde with sizing agent.
2. according to claim 1 a kind of with the method for persulphate elimination woodwork processing with free formaldehyde in the sizing agent, it is characterized in that: described persulphate is ammonium persulphate, Sodium Persulfate or Potassium Persulphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100471625A CN101250382B (en) | 2008-03-27 | 2008-03-27 | Method for eliminating free formaldehyde in adhesive for machining woodwork by using persulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100471625A CN101250382B (en) | 2008-03-27 | 2008-03-27 | Method for eliminating free formaldehyde in adhesive for machining woodwork by using persulfate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101250382A CN101250382A (en) | 2008-08-27 |
| CN101250382B true CN101250382B (en) | 2010-06-09 |
Family
ID=39953988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100471625A Expired - Fee Related CN101250382B (en) | 2008-03-27 | 2008-03-27 | Method for eliminating free formaldehyde in adhesive for machining woodwork by using persulfate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101250382B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2657203A1 (en) * | 2012-04-27 | 2013-10-30 | URSA Insulation, S.A. | Process for the production of a phenol-formaldehyde resin having low free-formaldehyde content, the phenol-formaldehyde resin resulting from this process, and its use as a binder for mineral wool insulation products |
| EP2657266A1 (en) | 2012-04-27 | 2013-10-30 | URSA Insulation, S.A. | Process for the preparation of a phenol-formaldehyde resin having a low amount of free formaldehyde, a phenol-formaldehyde resin resulting from this process, and the use of this resin as a binder for mineral wool insulation products |
| CN109913152A (en) * | 2019-01-21 | 2019-06-21 | 桐城市桐佳装饰有限公司 | Preparation method for coating is used in a kind of fitting of family's wallpaper |
| CN110975588A (en) * | 2019-12-20 | 2020-04-10 | 太原市银溪源科技有限公司 | Preparation method of impregnated activated carbon for removing formaldehyde |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001164235A (en) * | 1999-09-30 | 2001-06-19 | Kyokutoo International:Kk | Scavenger for formaldehyde, method for treating wooden plate and wooden plate |
| CN1425725A (en) * | 2003-01-20 | 2003-06-25 | 清华大学 | New formadehyde catching agent and its preparing method |
| CN1583226A (en) * | 2004-05-25 | 2005-02-23 | 王诚德 | Formol collecting agent and preparing method thereof |
-
2008
- 2008-03-27 CN CN2008100471625A patent/CN101250382B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001164235A (en) * | 1999-09-30 | 2001-06-19 | Kyokutoo International:Kk | Scavenger for formaldehyde, method for treating wooden plate and wooden plate |
| CN1425725A (en) * | 2003-01-20 | 2003-06-25 | 清华大学 | New formadehyde catching agent and its preparing method |
| CN1583226A (en) * | 2004-05-25 | 2005-02-23 | 王诚德 | Formol collecting agent and preparing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101250382A (en) | 2008-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103751944B (en) | A kind of formaldehyde catching agent and preparation method thereof | |
| CN101250382B (en) | Method for eliminating free formaldehyde in adhesive for machining woodwork by using persulfate | |
| CN101191043B (en) | Method for preparing urea-formaldehyde resin adhesive | |
| CN1670104A (en) | Low-release aldehyde adhesive and its preparation method and use | |
| AU2020101072A4 (en) | Environmentally-friendly urea-formaldehyde resin adhesive and preparation method and use thereof | |
| CN101696348B (en) | Urea resin adhesive capable of removing formaldehyde | |
| CN104874267A (en) | Formaldehyde cleaning agent | |
| CN103130965B (en) | A kind of Humic acid type superabsorbent resin and preparation method thereof | |
| CN1817932A (en) | Urea resin and production thereof | |
| CN107434852A (en) | A kind of method of amino benzenes compounds in the super crosslinked resin and its adsorption recovery industrial wastewater of cyclo-dextrin-modified | |
| CN101037576B (en) | Formaldehyde elimination agent | |
| EP3464429B1 (en) | Method of manufacturing composite products comprising a carbohydrate-based binder | |
| CN102924242A (en) | Method for purifying propylene glycol ether compounds | |
| CN104437394B (en) | Dual-layer high-amino density plant fiber-based adsorption material and preparation method and application thereof | |
| CN101298520B (en) | Urea-formaldehyde resin additive, preparation thereof and urea-formaldehyde resin adhesive | |
| CN108014612A (en) | A kind of compound formaldehyde scavenger and preparation method thereof | |
| CN110711602A (en) | Multifunctional nano composite formaldehyde odor removing environment-friendly new material | |
| CN103041784B (en) | Glycine graft crosslinking chitosan microball adsorbent for heavy metal | |
| CN110509384B (en) | Green persimmon extraction product for controlling formaldehyde release | |
| RU2437911C2 (en) | Adhesive composition | |
| CN101245172B (en) | Urea formaldehyde condensate additive agent, production method and urea formaldehyde condensate adhesive agent | |
| CN103692536B (en) | Method for clearing formaldehyde in artificial board | |
| CN110819265A (en) | Acrylate structural adhesive | |
| CN101250383B (en) | Method for eliminating free formaldehyde in adhesive for machining woodwork by using potassium hypermanganate | |
| CN102580282A (en) | Catching agent for free formaldehyde in urea resin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20130327 |