CN1616510A - Production of modified dimeric cyanamide urea formadehyde copolymer resin and its use for producing dipped paper - Google Patents
Production of modified dimeric cyanamide urea formadehyde copolymer resin and its use for producing dipped paper Download PDFInfo
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- CN1616510A CN1616510A CN 200310107698 CN200310107698A CN1616510A CN 1616510 A CN1616510 A CN 1616510A CN 200310107698 CN200310107698 CN 200310107698 CN 200310107698 A CN200310107698 A CN 200310107698A CN 1616510 A CN1616510 A CN 1616510A
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Abstract
The modified copolymer resin is prepared with formaldehyde, urea and melamine as main materials. The production process of the modified copolymer resin includes feeding formaldehyde into reactor, regulating pH 9-9.5, adding melamine, diethylene glycol and urea, heating to 90 deg.c, regulating pH while maintaining the temperature, and stopping reaction after water content reaches 1/2. The production process of dipped paper with the modified copolymer resin includes adding moistening agent in 0.05 %, demolding agent in 0.15 % and curing agent in 1 % to the resin; regulating curing period to 5-7 min; controlling the dipping amount in 140-150 % and volatile component in 6-7 %; and drying at temperature not higher than 145 deg.c.
Description
The present invention relates to the manufacturing of a class modified cyanurotriamide urea formaldehyde copolymerization aminoresin and be used to produce impregnated paper, this copolymerization aminoresin main raw material comprises trimeric cyanamide, urea, formaldehyde, Diethylene Glycol, hexanolactam.Be mainly used in producing impregnated paper, comprising producing decoration bond paper and the bottom bond paper that reinforced composite floorboard is used.Decoration bond paper that production impregnated paper face artificial board is used and bottom bond paper also can be used for the facing bond paper on the cement lamina membranacea.
Current production impregnated paper mainly divides two big classes both urea-formaldehyde resin and melamine resin with resin, and these two kinds of resins are separately to use or use by the different ratios mixing when producing impregnated paper.Two kinds of mixed with resin are used and are existed the curing phenomenon indeterminate, and set time is asynchronous, and the active phase is short, the easy moisture absorption of the impregnated paper of producing, surface irregularity.The impregnated paper of producing with the present invention can overcome above shortcoming, produces the impregnated paper of excellent property.
Copolymerization aminoresin provided by the invention, be a kind of can be water-soluble and can the fused performed polymer, this performed polymer is by trimeric cyanamide, the mixture of urea under the condition that Diethylene Glycol and water are arranged with the low viscosity polymer of formaldehyde condensation in weak alkaline medium.Replace traditional terpolycyantoamino-formaldehyde resin and Precondensed UreaFormaldehyde Resin with this copolymerization aminoresin.According to producing the copolymerization aminoresin that different impregnated papers adopts different ratios of raw materials.Only producing a kind of resin does not need to do simultaneously two kinds of resins again and produces impregnated paper.Thereby improved production efficiency, reduced cost.Though the wear resisting property of the melamine urea formaldehyde copolymerization aminoresin that price comparison is cheap is not as the melamine formaldehyde resin, but it has good penetration, very fast curing speed is not only arranged, and Resin Flow is also fine, it also can make the facing plate have enough wear resisting propertys, the every performance index in can be up to state standards fully " impregnated paper face artificial board ".
When the 7-9, urea and formaldehyde generate stable methylolurea according to pH value.Then when PH=4-6, in acidic medium, reacted the methylolurea of generation, further the dehydration polycondensation becomes methylene urea and the low molecular compound that is connected with methyl, and trimeric cyanamide and formaldehyde also can generate oxy-compound in alkaline medium both PH=7.5-9.Further condensation again forms the melamino-formaldehyde polymkeric substance between the oxy-compound.That is to say in weak alkaline medium, trimeric cyanamide, urea can both generate oxy-compound with formaldehyde, further again condensation cross-linking between the oxy-compound.Therefore, we expect being added to trimeric cyanamide and urea admixture in the formalin simultaneously, allow melamine urea generate oxy-compound with formaldehyde simultaneously, allow these oxy-compound and Diethylene Glycol react again and make poly-hydroxy enter its structure, introduce the part ehter bond simultaneously (O-), to increase other performance of resin, and then further allowing trimeric cyanamide. the methylol compound of urea and formaldehyde carries out condensation cross-linking, form a kind of trimeric cyanamide. urea. formaldehyde copolymerization aminoresin, by the control pH value, water when temperature and reaction mixes, add the adding hexanolactam, reach the performance of the solvent impregnated resin that we need, produce impregnated paper with this copolymerization aminoresin and can reach standard among " facing impregnated bond paper " LY/1143-93 fully.
Reaction mechanism
The first step
Second step
The proportioning raw materials of this copolymerization aminoresin is:
Formaldehyde: (urea+trimeric cyanamide)=2.5-1.5: 1 (weight mol ratio) trimeric cyanamide: urea=20-100: 100 (weight ratio) Diethylene Glycol: trimeric cyanamide=1: 4 (weight ratio) hexanolactam: urea=1: 40 (weight ratio) is wherein also regulated pH value with 30%NaOH and 25%HCOOH.
The best proportioning raw materials of this copolymerization aminoresin is:
Formaldehyde: (urea+trimeric cyanamide)=2: 1 (weight mol ratio) trimeric cyanamides: urea=1: 1 (weight ratio) Diethylene Glycol: trimeric cyanamide=1: 4 (weight ratio) hexanolactam: urea=1: 40
When trimeric cyanamide: during urea≤1: 2, formaldehyde, urea for the first time, trimeric cyanamide, Diethylene Glycol all joins in the reactor, be warming up to 90 ℃ of insulations after 20 minutes pH value very slow this that descend be in insulation, must slowly reduce pH value with 25%HCOOH, in 30 minutes pH value is transferred to PH=5, close observation water mixes to mix up to water and reaches 1: 2 termination reaction then.
When trimeric cyanamide: during urea 〉=1: 2, formaldehyde, urea for the first time, trimeric cyanamide, Diethylene Glycol all joins in the reactor, closely detects pH value when being warming up to 90 ℃ of insulations, regulates pH value with 30%NaOH and must not be lower than 7.5 and mix until water and to reach 1: 2 termination reaction.
The manufacturing process of this copolymerization aminoresin:
Raw material comprises: trimeric cyanamide, urea, the industrial formol aqueous solution, caustic soda, Diethylene Glycol, hexanolactam, formic acid.
Proportioning: formaldehyde: (urea+trimeric cyanamide)=2.5-1.5: 1 (weight mol ratio)
Trimeric cyanamide: urea=20-100: 100 (weight ratio) Diethylene Glycol: trimeric cyanamide=1: 4 (weight ratio)
Hexanolactam: urea=1: 40 (weight ratio)
Behaviour does: a) formalin is input in the reactor, transfers PH=9-9.5 to be warming up to 30 ℃ with 30%NaOH and add urea for the first time (account for urea total amount 80%) and fully stir.
B) continue to be warming up to 30 ℃ and add trimeric cyanamide, Diethylene Glycol fully stirs and is warming up to 88-90 ℃ of insulation detection pH value in 30 minutes
C) keeping being reflected at the 88-90 ℃ of continuous pH value that detects determines to control pH value with 30%NaOH or 25%HCOOH according to trimeric cyanamide and urea proportioning.This adjusting of pH value is very crucial by the resin of two kinds of aminocompounds whiles with formaldehyde generation condensation reaction, must just detect once in 5 minutes.Add acid, the amount of alkali is wanted suitably.To guarantee that resin is synthesizing in the medium stably.Whether note observing resin when detecting pH value water occurs and mixes and (resin is splashed in the frozen water if white cloud and mist is strengthened is exactly water to occur to have mixed with 500ml beaker dress half cup water and half cup ice cube in frozen water.) mix the back and add urea and hexanolactam for the second time when water in frozen water, occurring, continuing that reaction mixes up to water is 1: 2 o'clock, transfers PH=9-9.5 cooling termination reaction with 30%NaOH immediately, is cooled to 40 ℃ and puts into and store up the glue jar.
The property index of this copolymerization aminoresin:
Viscosity: 13-16 second/20 ℃ outward appearance: become oyster white after transparent 24 hours
Shelf lives: 10 days active phases: 20 hours
Solids content: 42%-52%
Be used to produce impregnated paper technology:
The first impregnation stage: with putting into the impregnation jar after the metering of copolymerization aminoresin, add 0.05% wetting agent, 0.15% remover, 1% solidifying agent fully stirs.Transfer 5-7 minute set time.
Second impregnation stage: after the solvent impregnated resin that modulates put into steeping vat, the beginning paper injection was adjusted metering roll, control spread 140-150%, and fugitive constituent 6-7%, the dryer section temperature is no more than 145 ℃.The complete conformance with standard LY/T1143-93 of the impregnated paper of producing.
The impregnated paper technological process of production is seen the Figure of description explanation
Square frame 1 expression resin in the Figure of description is manufactured operation, square frame 2 expression dipping body paper in the Figure of description, square frame 3 expression dippings in the Figure of description are allocated operation with resin, square frame 4 expression dipping operations in the Figure of description, square frame 5 expression measuring apparatus in the Figure of description, square frame 6 expression dryer section in the Figure of description, the square frame 7 expression finished product impregnated papers in the Figure of description.
Concrete embodiment 1
(1) a) formalin 2400KG is input in the reactor, transfers PH=9-9.5 to give birth to temperature with 30%NaOH and add urea 480Kg for the first time (account for urea total amount 80%) to 30 ℃ and fully stir.
B) continue to be warming up to 30 ℃ and add trimeric cyanamide 600Kg, Diethylene Glycol 150Kg fully stirs and is warming up to 88-90 ℃ of insulation detection pH value in 30 minutes
C) keep temperature of reaction to control pH value with 30%NaOH and be not less than 7.5 at 88-90 ℃ of continuous detection pH value.This adjusting of pH value is very crucial by the resin of two kinds of aminocompounds whiles with formaldehyde generation condensation reaction, must just detect once in 5 minutes.Add alkali 500ml at every turn.To guarantee that resin synthesizes in the medium stably in PH 〉=7.5.Whether note observing resin when detecting pH value water occurs and mixes in frozen water, when in frozen water, occurring adding urea 120Kg and hexanolactam 15Kg for the second time after water mixes, continuing reaction mixed up to water is 1: 2 o'clock, transfer PH=9-9.5 cooling termination reaction with 30%NaOH immediately, be cooled to 50 ℃ of sample examinations, put into storage glue jar for 40 ℃.
The property index of this copolymerization aminoresin:
Viscosity: 16 seconds/20 ℃ outward appearances: transparent
Shelf lives: 10 days/room temperature activity phase: 20 hours/room temperature
Solids content: about 52%
(2) impregnation program input computer, deployed solvent impregnated resin index: be transferred to 5-6 minute set time/100 ℃, viscosity 13-14 second/20 ℃.
(3) deployed solvent impregnated resin is imported in first steeping vat and the coating groove, then ready body paper is carried out impregnation, impregnation resin content is controlled at 100%-120%, be coated with glue after the drying again one time, through second dryer section, the last total spread of impregnated paper is controlled at 130-140%, fugitive constituent 6-7% again.
(1) a) formalin 1775KG is input in the reactor, transfers PH=9-9.5 to give birth to temperature with 30%NaOH and add urea 480Kg for the first time (account for urea total amount 80%) to 30 ℃ and fully stir.
B) continue to be warming up to 30 ℃ and add trimeric cyanamide 120Kg, Diethylene Glycol 30Kg fully stirs and is warming up to 88-90 ℃ of insulation detection pH value in 30 minutes
C) keep being reflected at 88-90 ℃ constantly detect pH value after 20 minutes pH value descend and at this moment in insulation, must slowly reduce pH value very slowly with 25%HCOOH, in 30 minutes pH value is transferred to PH=5.This adjusting of pH value is very crucial by the resin of two kinds of aminocompounds whiles with formaldehyde generation condensation reaction, must just detect once in 5 minutes.Whether note observing resin when detecting pH value water occurs and mixes in frozen water, when in frozen water, occurring adding urea 120Kg and hexanolactam 15Kg for the second time after water mixes, continuing reaction mixed up to water is 1: 2 o'clock, transfer PH=9-9.5 cooling termination reaction with 30%NaOH immediately, be cooled to 50 ℃ of sample examinations, put into storage glue jar for 40 ℃.
The property index of this copolymerization aminoresin:
Viscosity: 13-14 second/20 ℃ outward appearance: oyster white
Shelf lives: 10 days/room temperature activity phase: 10 hours/room temperature.
Solids content: about 42%
(2) impregnation program input computer, deployed solvent impregnated resin index: this copolymerization aminoresin is transferred to 5-6 minute set time/100 ℃, viscosity 13-14 second/20 ℃.Be transferred to 6-7 minute the set time of melamine formaldehyde resin/100 ℃, viscosity 13-14 second/20 ℃,
(3) deployed this copolymerization aminoresin solvent impregnated resin is imported first steeping vat, in the melamine formaldehyde solvent impregnated resin input coating groove.
(3) soak a copolymerization aminoresin and then be coated with or soak melamine resin one time, final impregnating paper spread is controlled at 130-140%, fugitive constituent 6-7%.
Can reach standard among " facing impregnated bond paper " LY/1143-93 fully with the impregnated paper of above two kinds of explained hereafter.
Claims (1)
- The manufacturing of modified cyanurotriamide urea-formaldehyde copolymer resin and be used to produce impregnated paper1) modified cyanurotriamide, the manufacturing process of urea-formaldehyde copolymer resin is characterized in that formaldehyde simultaneously and trimeric cyanamide, the mixture of urea under the condition that Diethylene Glycol and water are arranged with the low viscosity polymer of formaldehyde condensation in weak alkaline medium.2) modified cyanurotriamide, urea-formaldehyde copolymer resin are used to produce the technology of impregnated paper.3) modified cyanurotriamide, the raw material of urea-formaldehyde copolymer resin is formed and proportioning:Formaldehyde: (urea+trimeric cyanamide)=2.5-1.5: 1 (weight mol ratio)Trimeric cyanamide: urea=20-100: 100 (weight ratio) Diethylene Glycol: trimeric cyanamide=1: 4 (weight ratio)Hexanolactam: urea=wherein also with 30%NaOH and 25%HCOOH regulate pH value at 1: 404) modified cyanurotriamide, urea-formaldehyde copolymer resin are used for producing the impregnation technology of the technology of impregnated paper: add 0.05% wetting agent, and 0.15% remover, 1% solidifying agent fully stirs.Transfer 5-7 minute set time.
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| CN 200310107698 CN1616510A (en) | 2003-11-14 | 2003-11-14 | Production of modified dimeric cyanamide urea formadehyde copolymer resin and its use for producing dipped paper |
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| CN102154930A (en) * | 2011-03-23 | 2011-08-17 | 天津市鑫源森达新材料科技有限公司 | Preparation method of impregnated paper for decorative surface on high-glossiness furniture |
| CN103881113A (en) * | 2014-03-04 | 2014-06-25 | 西南林业大学 | Preparation of environment-friendly tannin furan resin and application of resin in production of impregnated papers |
| CN103898800A (en) * | 2014-03-28 | 2014-07-02 | 苏州市建诚装饰材料有限公司 | Method for manufacturing high-definition and wear-resistant impregnated paper through dip coating |
| CN103910843A (en) * | 2014-03-28 | 2014-07-09 | 苏州市建诚装饰材料有限公司 | Formula and preparation method of resin for primary impregnation |
| CN104497938A (en) * | 2014-12-01 | 2015-04-08 | 中山冠华竹纤板业有限公司 | Modified bamboo fiber board adhesive and production method thereof |
| CN104744888A (en) * | 2013-12-26 | 2015-07-01 | 湖南圣保罗木业有限公司 | Impregnated resin, impregnated film adhesive, manufacturing methods of impregnated resin and impregnated film adhesive, and laminated floor |
| CN105369687A (en) * | 2015-10-22 | 2016-03-02 | 江苏建丰装饰纸有限公司 | Manufacturing method of impregnated bond paper for low formaldehyde furniture |
| CN106758524A (en) * | 2016-12-28 | 2017-05-31 | 江苏建丰装饰纸有限公司 | Low formaldehyde furniture impregnated bond paper production technology |
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- 2003-11-14 CN CN 200310107698 patent/CN1616510A/en active Pending
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| CN102154930B (en) * | 2011-03-23 | 2013-10-30 | 天津市鑫源森达新材料科技有限公司 | Preparation method of impregnated paper for decorative surface on high-glossiness furniture |
| CN102154930A (en) * | 2011-03-23 | 2011-08-17 | 天津市鑫源森达新材料科技有限公司 | Preparation method of impregnated paper for decorative surface on high-glossiness furniture |
| CN104744888A (en) * | 2013-12-26 | 2015-07-01 | 湖南圣保罗木业有限公司 | Impregnated resin, impregnated film adhesive, manufacturing methods of impregnated resin and impregnated film adhesive, and laminated floor |
| CN104744888B (en) * | 2013-12-26 | 2017-03-08 | 湖南圣保罗木业有限公司 | Impregnating resin, impregnated bond paper and its manufacture method, laminated flooring |
| CN103881113A (en) * | 2014-03-04 | 2014-06-25 | 西南林业大学 | Preparation of environment-friendly tannin furan resin and application of resin in production of impregnated papers |
| CN103910843B (en) * | 2014-03-28 | 2016-04-20 | 苏州市建诚装饰材料有限公司 | Formula of a kind of single-steeping resin and preparation method thereof |
| CN103910843A (en) * | 2014-03-28 | 2014-07-09 | 苏州市建诚装饰材料有限公司 | Formula and preparation method of resin for primary impregnation |
| CN103898800B (en) * | 2014-03-28 | 2017-01-04 | 苏州市建诚装饰材料有限公司 | A kind of dip coated makes the method for high-resolution wear-resistant immersion paper |
| CN103898800A (en) * | 2014-03-28 | 2014-07-02 | 苏州市建诚装饰材料有限公司 | Method for manufacturing high-definition and wear-resistant impregnated paper through dip coating |
| CN104497938A (en) * | 2014-12-01 | 2015-04-08 | 中山冠华竹纤板业有限公司 | Modified bamboo fiber board adhesive and production method thereof |
| CN105369687A (en) * | 2015-10-22 | 2016-03-02 | 江苏建丰装饰纸有限公司 | Manufacturing method of impregnated bond paper for low formaldehyde furniture |
| CN106758521A (en) * | 2016-12-28 | 2017-05-31 | 江苏建丰装饰纸有限公司 | The production technology of wear-resistant decorative paper |
| CN106758524A (en) * | 2016-12-28 | 2017-05-31 | 江苏建丰装饰纸有限公司 | Low formaldehyde furniture impregnated bond paper production technology |
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| WO2019028935A1 (en) * | 2017-08-08 | 2019-02-14 | 王红梅 | Process for producing high-gloss wear-resistant paper |
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