CN106866908A - A kind of preparation technology of block of glass wool melamine modified phenolic resin - Google Patents
A kind of preparation technology of block of glass wool melamine modified phenolic resin Download PDFInfo
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
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- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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Abstract
The present invention relates to a kind of preparation technology of block of glass wool melamine modified phenolic resin, belong to technical field of composite materials.Step：Modified polyurethane is prepared first, then prepares modified phenolic resin, be then well mixed phenol-formaldehyde resin modified, 300~600 parts of water, 5~10 parts of amphoteric surfactant, 3~7 parts of silane coupler, 5~10 parts of coupling agent, 2~4 parts of antioxidant, obtain immersion fluid；By block of glass wool, 200~400 parts all infiltrate in immersion fluid, are taken out after 20~40 minutes and are placed on dividing plate, after there is no slurry outflow, insert in drying baker, by drying at a temperature of 30~80 DEG C, obtain final product.The present invention to phenolic resin modified, and then prepares the size prepared for mineral wool by aqueous polyurethane and melamine, and the thermal conductivity factor of the mineral wool that production is obtained is small, good corrosion resistance.
Description
Technical field
The present invention relates to a kind of preparation technology of block of glass wool melamine modified phenolic resin, belong to composite skill
Art field.
Background technology
It to generate the silicate mineral of glass is primary raw material that mineral wool is, while the certain clinker of addition, through melting, into
Cotton-like fiber that is fine and applying a certain amount of organic binder bond and be made simultaneously.With forming, bulk density be small, thermal conductivity
Go-to-and-fro, insulation thermal insulation, the advantage that sound absorption qualities are good, corrosion-resistant, stable chemical performance is good.Its preparation method is by melten glass fiber
Change and be subject to the product that the formula binding agent of the environment-friendly type based on thermosetting resin is processed, be that one kind only has several microns by diameter
The resilient felty body that is made of glass fibre, and can according to requirements select different moisture proof pasters multiple online
Close.Its a large amount of small air void having, makes it play insulation, sqouynd absorption lowering noise and security protection etc. and acts on, and is steel
Structural construction insulation, the optimal material of sqouynd absorption lowering noise.
Existing block of glass wool thermal conductivity factor as exterior-wall heat insulation is high, generally 0.042W/（m·K）, heat insulation effect is not
It is preferable, it is difficult to meet the requirement of the standard of building energy conservation 75%；Heat-resisting quantity is relatively low, is 400 DEG C, using limited；And will to reach insulation
Ask, it is necessary to increase the thickness of block of glass wool, therefore increased difficulty of construction and construction cost.CN1962260A discloses a kind of environmental protection
Type formaldehyde-free glass wool, its production technology is prepared by mineral wool raw material;High-temperature digestion, into fibre；Injection environment-friendly formaldehyde-free and
It is molded under glass wool adhesive condition of cure, the solidification temperature of mineral wool product is controlled at 100~300 DEG C in the production technology.
CN 104626666A disclose a kind of super Rotating fields extra-fine glass-wool felt, and the cotton felt is by the super of surface coated with resins binding agent
Thin centrifugal glass fibre interlayer heap poststack, forms through hot setting.The super Rotating fields extra-fine glass-wool felt fibre diameter is thin, and
Fibre diameter is in normal distribution, and distance is 10 μm~100 μm of super Rotating fields between layers, close to parallel between each layer
Cloth.CN 103571155A disclose a kind of blanket of glass wool and preparation method thereof.The blanket of glass wool is made up of mineral wool, adhesive,
Described adhesive includes：100 ~ 200 parts of resin, 150 ~ 250 parts of additive, 2 ~ 20 parts of blue colorant, softened water 160 ~
1100 parts.This adhesive is uniformly sprayed on mineral wool, 2 ~ 20min is solidified under 170 ~ 250 °C, you can into felt.
But the above-mentioned block of glass wool for preparing is remained in use, and thermal conductivity factor is excessive, corrosion resistance
Bad problem is, it is necessary to be solved.
The content of the invention
The purpose of the present invention is：Solve that the thermal conductivity factor that exists in use of block of glass wool is excessive, corrosion resistance is bad
Problem, is mainly realized by being modified to the phenolic resin in preparation process.
Technical scheme：
A kind of preparation technology of block of glass wool melamine modified phenolic resin, comprises the following steps：
1st step：By weight, 10~15 parts of polyethylene glycol is taken, vacuum dehydration 2 while stirring at a temperature of 100~110 DEG C
~3h, is cooled to room temperature, adds 5~10 parts of toluene di-isocyanate(TDI), 2~4 parts of cationic monomer, 2~4 parts of maleic acid, two
1~2 part of dibutyl tin laurate, reacts 2~3h at 70~75 DEG C, adds 3~5 parts of glycerine, anti-at 80~85 DEG C
20~60min is answered, modified polyurethane is obtained；
2nd step：By weight, catalyst is added in 60~80 parts of phenol, after intensification, adds anion unsaturated monomer
3~5 parts of 5~10 parts, 3~6 parts of lignin, 3~5 parts of urea and melamine, are reacted；
3rd step：In the product that the 2nd step is obtained, 50~70 parts of modified polyurethane and formaldehyde are added, reacted, instead
After should terminating, cooling discharge obtains phenol-formaldehyde resin modified；
4th step：By phenol-formaldehyde resin modified, 300~600 parts of water, 5~10 parts of amphoteric surfactant, 3~7 parts of silane coupler,
5~10 parts of coupling agent, 2~4 parts of antioxidant are well mixed, and obtain immersion fluid；
5th step：By block of glass wool, 200~400 parts all infiltrate in immersion fluid, are taken out after 20~40 minutes and are placed on dividing plate,
After there is no slurry outflow, insert in drying baker, will be dried at a temperature of 30~80 DEG C, obtain final product.
In the 1st described step, cationic monomer is selected from MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, methacrylic acid two
Methylamino ethyl ester or dimethyl diallyl ammonium chloride.
In the 2nd described step, anion unsaturated monomer is selected from methacrylic acid, maleic acid, vinyl sulfonic acid, styrene sulphur
Acid, 2- (methyl) acrylamido -2- methyl propane sulfonic acids, 2- (methyl) acryloyl group ethane sulfonic acids and 2- (methyl) propylene
Propane sulfonic acid and their salt.
In the 2nd described step, between 40~50 DEG C of reaction temperature, 30~60min of reaction time.
In the 2nd described step, described lignin is bamboo acetic acid lignin, corncob alkali lignin, wheat stalk alkali
Any one or a few in lignin and poplar sulfate-reducing conditions.
In the 2nd described step, the catalyst is the mixture of NaOH and zinc oxide, NaOH and zinc oxide
Mol ratio is 1~1.5：1.
In the 3rd described step, between 90~95 DEG C of reaction temperature, 2~4h of reaction time.
In the 4th described step, coupling agent is silane coupler or titanate coupling agent.
In the 4th described step, amphoteric surfactant includes, for example, imidazolines surfactant, such as 2- hendecanes
Base-N, N- (hydroxyethyl carboxymethyl) -2- imidazolines sodium and 2- cocoyl -2- imidazoline hydroxylating -1- carboxy ethyl oxalic acid
The disodium (- imidazoliniumhydroxyde-1-carboxyethyloxiate of disodium2-cocoyl-2)；Betaines
Surfactant, such as 2- heptadecyls-N- carboxymethyl groups-N- hydroxyethyl imidazolines glycine betaines, lauryl dimethyl amino
Acetic acid glycine betaine, alkyl betaine, amido betaine and sulfobetaines；And amino acid surfactant, such as N- bays
Base glycine, N- lauryls-Beta-alanine and N- stearyls-Beta-alanine.
As antioxidant, such as triphenyl phosphite, three（4- aminomethyl phenyls）Phosphite ester, three（4- tert-butyl benzenes
Base）Phosphite ester, three（Single nonyl phenyl）Phosphite ester, three（2- methyl -4- ethylphenyls）Phosphite ester, three（2- methyl -4-
Tert-butyl-phenyl）Phosphite ester, three（2,4- di-t-butyl phenyl）Phosphite ester, three（2,6- di-t-butyl phenyl）Phosphorous acid
Ester, three（2,4- di-t-butyl -5- aminomethyl phenyls）Phosphite ester, three（It is single, dinonylphenyl）It is phosphite ester, double（Single nonyl benzene
Base）It is pentaerythrite-two-phosphite ester, double（2,4- di-t-butyl phenyl）It is pentaerythrite-two-phosphite ester, double（2,6- bis--
The tert-butyl group -4- aminomethyl phenyls）It is pentaerythrite-two-phosphite ester, double（Tri--tert-butyl-phenyls of 2,4,6-）Pentaerythrite-two-Asia
It is phosphate, double（2,4- di-t-butyl -5- aminomethyl phenyls）Pentaerythrite-two-phosphite ester, 2,2- di-2-ethylhexylphosphine oxides（4,6- diformazans
Base phenyl）Octyl group phosphite ester, 2,2- di-2-ethylhexylphosphine oxides（The 4- tert-butyl group -6- aminomethyl phenyls）Octyl group phosphite ester, 2,2- methylene
It is double（4,6- di-t-butyl phenyl）Octyl group phosphite ester, 2,2- di-2-ethylhexylphosphine oxides（4,6- 3,5-dimethylphenyls）Hexyl phosphite ester, 2,
2- di-2-ethylhexylphosphine oxides（4,6- 3,5-dimethylphenyls）Hexyl phosphite ester, 2,2- di-2-ethylhexylphosphine oxides（4,6- di-t-butyl phenyl）Stearyl
The bi-ester of phosphite such as phosphite ester；[the 3- of pentaerythrite base-four（3,5- di-t-butyl 4- hydroxy phenyls）Propionic ester], 1,
6- hexylene glycols-bis- [3-（3,5- di-t-butyl 4- hydroxy phenyls）Propionic ester], octadecyl -3-（3,5- di-t-butyl -4- hydroxyls
Base phenyl）Propionic ester, 1,3,5- trimethyls -2,4,6- three（3,5- di-t-butyl -4- hydroxyphenylmethyls）Benzene, triethylene glycol-bis-
[3-（The 3- tert-butyl group -5- methyl -4- hydroxy phenyls）Propionic ester], the double { 2- [3- of 3,9-（3- tertiary butyl-4-hydroxy -5- methylbenzenes
Base）Propionyloxy] -1,1- dimethyl ethyls 2,4,8,10- tetra- oxaspiro [5,5] hendecane, [2- methyl-the 4- of 1,1,3- tri-
（3,5- di-t-butyl -4- hydroxy phenylpropionyl epoxides）- 5- tert-butyl-phenyls] the fortified phenol class compound such as butane；5,7-
Di-t-butyl -3-（3,4- 3,5-dimethylphenyls）- 3H- benzofuran-2-ones etc..These can be used alone or two or more simultaneously
With.
Beneficial effect
The present invention to phenolic resin modified, and then prepares what is prepared for mineral wool by aqueous polyurethane and melamine
Size, the thermal conductivity factor of the mineral wool that production is obtained is small, good corrosion resistance.
Specific embodiment
Embodiment 1
1st step：By weight, 10 parts of polyethylene glycol is taken, the vacuum dehydration 2h while stirring at a temperature of 100 DEG C is cooled to
Room temperature, adds 5 parts of toluene di-isocyanate(TDI), 2 parts of cationic monomer MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, maleic acid
2 parts, 1 part of dibutyl tin laurate, 2h is reacted at 70 DEG C, adds 3 parts of glycerine, and 20min is reacted at 80 DEG C, is obtained
Modified polyurethane；
2nd step：By weight, catalyst is added in 60 parts of phenol, and (catalyst is NaOH and zinc oxide mol ratio is 1
~1 mixture), after intensification, add 5 parts of anion unsaturated monomer styrene sulfonic acid, 3 parts of corncob alkali lignin, urea 3
3 parts of part and melamine, are reacted, between 40 DEG C of reaction temperature, reaction time 30min；
3rd step：In the product that the 2nd step is obtained, 50 parts of modified polyurethane and formaldehyde are added, reacted, reaction temperature
Between 90 DEG C of degree, reaction time 2h, after reaction terminates, cooling discharge obtains phenol-formaldehyde resin modified；
4th step：By phenol-formaldehyde resin modified, 300 parts of water, 5 parts of amphoteric surfactant lauryl dimethyl oxyneurine,
3 parts of silane coupler, 5 parts of silane coupler, antioxidant are double（2,4- di-t-butyl -5- aminomethyl phenyls）Pentaerythrite-two-
2 parts of phosphite ester is well mixed, and obtains immersion fluid；
5th step：By block of glass wool, 200 parts all infiltrate in immersion fluid, are taken out after 20 minutes and are placed on dividing plate, treat there is no slurry
After body outflow, insert in drying baker, will be dried at a temperature of 30 DEG C, obtain final product.
Embodiment 2
1st step：By weight, 15 parts of polyethylene glycol is taken, the vacuum dehydration 3h while stirring at a temperature of 110 DEG C is cooled to
Room temperature, adds 10 parts of toluene di-isocyanate(TDI), 4 parts of cationic monomer MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, Malaysia
Sour 4 parts, 2 parts of dibutyl tin laurate, 3h is reacted at 75 DEG C, adds 5 parts of glycerine, and 60min is reacted at 85 DEG C, is obtained
To modified polyurethane；
2nd step：By weight, catalyst is added in 80 parts of phenol, and (catalyst is NaOH and zinc oxide mol ratio is 1
~1 mixture), after intensification, add 10 parts of anion unsaturated monomer styrene sulfonic acid, 6 parts of corncob alkali lignin, urea
5 parts and 5 parts of melamine, are reacted, between 50 DEG C of reaction temperature, reaction time 60min；
3rd step：In the product that the 2nd step is obtained, 70 parts of modified polyurethane and formaldehyde are added, reacted, reaction temperature
Between 95 DEG C of degree, reaction time 4h, after reaction terminates, cooling discharge obtains phenol-formaldehyde resin modified；
4th step：By phenol-formaldehyde resin modified, 600 parts of water, 5 parts of amphoteric surfactant lauryl dimethyl oxyneurine,
3 parts of silane coupler, 5 parts of silane coupler, antioxidant are double（2,4- di-t-butyl -5- aminomethyl phenyls）Pentaerythrite-two-
2 parts of phosphite ester is well mixed, and obtains immersion fluid；
5th step：By block of glass wool, 400 parts all infiltrate in immersion fluid, are taken out after 40 minutes and are placed on dividing plate, treat there is no slurry
After body outflow, insert in drying baker, will be dried at a temperature of 80 DEG C, obtain final product.
Embodiment 3
1st step：By weight, 12 parts of polyethylene glycol is taken, the vacuum dehydration 2h while stirring at a temperature of 105 DEG C is cooled to
Room temperature, adds 6 parts of toluene di-isocyanate(TDI), 3 parts of cationic monomer MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, maleic acid
3 parts, 2 parts of dibutyl tin laurate, 3h is reacted at 72 DEG C, adds 4 parts of glycerine, and 40min is reacted at 82 DEG C, is obtained
Modified polyurethane；
2nd step：By weight, catalyst is added in 70 parts of phenol, and (catalyst is NaOH and zinc oxide mol ratio is 1
~1 mixture), after intensification, add 7 parts of anion unsaturated monomer styrene sulfonic acid, 5 parts of corncob alkali lignin, urea 4
4 parts of part and melamine, are reacted, between 45 DEG C of reaction temperature, reaction time 50min；
3rd step：In the product that the 2nd step is obtained, 60 parts of modified polyurethane and formaldehyde are added, reacted, reaction temperature
Between 92 DEG C of degree, reaction time 3h, after reaction terminates, cooling discharge obtains phenol-formaldehyde resin modified；
4th step：By phenol-formaldehyde resin modified, 500 parts of water, 7 parts of amphoteric surfactant lauryl dimethyl oxyneurine,
6 parts of silane coupler, 7 parts of silane coupler, antioxidant are double（2,4- di-t-butyl -5- aminomethyl phenyls）Pentaerythrite-two-
3 parts of phosphite ester is well mixed, and obtains immersion fluid；
5th step：By block of glass wool, 300 parts all infiltrate in immersion fluid, are taken out after 30 minutes and are placed on dividing plate, treat there is no slurry
After body outflow, insert in drying baker, will be dried at a temperature of 70 DEG C, obtain final product.
Reference examples 1
Difference with embodiment 3 is：Cationic monomer is not added in the preparation process of modified polyurethane.
1st step：By weight, 12 parts of polyethylene glycol is taken, the vacuum dehydration 2h while stirring at a temperature of 105 DEG C is cold
But to room temperature, 6 parts of toluene di-isocyanate(TDI), 3 parts of maleic acid, 2 parts of dibutyl tin laurate is added, is reacted at 72 DEG C
3h, adds 4 parts of glycerine, and 40min is reacted at 82 DEG C, obtains modified polyurethane；
2nd step：By weight, catalyst is added in 70 parts of phenol, and (catalyst is NaOH and zinc oxide mol ratio is 1
~1 mixture), after intensification, add 7 parts of anion unsaturated monomer styrene sulfonic acid, 5 parts of corncob alkali lignin, urea 4
4 parts of part and melamine, are reacted, between 45 DEG C of reaction temperature, reaction time 50min；
3rd step：In the product that the 2nd step is obtained, 60 parts of modified polyurethane and formaldehyde are added, reacted, reaction temperature
Between 92 DEG C of degree, reaction time 3h, after reaction terminates, cooling discharge obtains phenol-formaldehyde resin modified；
4th step：By phenol-formaldehyde resin modified, 500 parts of water, 7 parts of amphoteric surfactant lauryl dimethyl oxyneurine,
6 parts of silane coupler, 7 parts of silane coupler, antioxidant are double（2,4- di-t-butyl -5- aminomethyl phenyls）Pentaerythrite-two-
3 parts of phosphite ester is well mixed, and obtains immersion fluid；
5th step：By block of glass wool, 300 parts all infiltrate in immersion fluid, are taken out after 30 minutes and are placed on dividing plate, treat there is no slurry
After body outflow, insert in drying baker, will be dried at a temperature of 70 DEG C, obtain final product.
Reference examples 2
Difference with embodiment 3 is：Melamine is not added in 2nd step.
1st step：By weight, 12 parts of polyethylene glycol is taken, the vacuum dehydration 2h while stirring at a temperature of 105 DEG C is cold
But to room temperature, 6 parts of toluene di-isocyanate(TDI), 3 parts of cationic monomer MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, horse is added
Come sour 3 parts, 2 parts of dibutyl tin laurate, 3h reacted at 72 DEG C, add 4 parts of glycerine, 40min is reacted at 82 DEG C,
Obtain modified polyurethane；
2nd step：By weight, catalyst is added in 70 parts of phenol, and (catalyst is NaOH and zinc oxide mol ratio is 1
~1 mixture), after intensification, add 7 parts of anion unsaturated monomer styrene sulfonic acid, 5 parts of corncob alkali lignin and urea
4 parts, reacted, between 45 DEG C of reaction temperature, reaction time 50min；
3rd step：In the product that the 2nd step is obtained, 60 parts of modified polyurethane and formaldehyde are added, reacted, reaction temperature
Between 92 DEG C of degree, reaction time 3h, after reaction terminates, cooling discharge obtains phenol-formaldehyde resin modified；
4th step：By phenol-formaldehyde resin modified, 500 parts of water, 7 parts of amphoteric surfactant lauryl dimethyl oxyneurine,
6 parts of silane coupler, 7 parts of silane coupler, antioxidant are double（2,4- di-t-butyl -5- aminomethyl phenyls）Pentaerythrite-two-
3 parts of phosphite ester is well mixed, and obtains immersion fluid；
5th step：By block of glass wool, 300 parts all infiltrate in immersion fluid, are taken out after 30 minutes and are placed on dividing plate, treat there is no slurry
After body outflow, insert in drying baker, will be dried at a temperature of 70 DEG C, obtain final product.
Reference examples 3
Difference with embodiment 3 is：Lignin is not added in 2nd step.
1st step：By weight, 12 parts of polyethylene glycol is taken, the vacuum dehydration 2h while stirring at a temperature of 105 DEG C is cold
But to room temperature, 6 parts of toluene di-isocyanate(TDI), 3 parts of cationic monomer MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, horse is added
Come sour 3 parts, 2 parts of dibutyl tin laurate, 3h reacted at 72 DEG C, add 4 parts of glycerine, 40min is reacted at 82 DEG C,
Obtain modified polyurethane；
2nd step：By weight, catalyst is added in 70 parts of phenol, and (catalyst is NaOH and zinc oxide mol ratio is 1
~1 mixture), after intensification, 4 parts of 7 parts of anion unsaturated monomer styrene sulfonic acid, 4 parts of urea and melamine are added, enter
Row reaction, between 45 DEG C of reaction temperature, reaction time 50min；
3rd step：In the product that the 2nd step is obtained, 60 parts of modified polyurethane and formaldehyde are added, reacted, reaction temperature
Between 92 DEG C of degree, reaction time 3h, after reaction terminates, cooling discharge obtains phenol-formaldehyde resin modified；
4th step：By phenol-formaldehyde resin modified, 500 parts of water, 7 parts of amphoteric surfactant lauryl dimethyl oxyneurine,
6 parts of silane coupler, 7 parts of silane coupler, antioxidant are double（2,4- di-t-butyl -5- aminomethyl phenyls）Pentaerythrite-two-
3 parts of phosphite ester is well mixed, and obtains immersion fluid；
5th step：By block of glass wool, 300 parts all infiltrate in immersion fluid, are taken out after 30 minutes and are placed on dividing plate, treat there is no slurry
After body outflow, insert in drying baker, will be dried at a temperature of 70 DEG C, obtain final product.
Test method： GB/T 13350-2008《Class wool and their products for thermal insulation》、Q/JC JCY0029-2014《Change
Property block of glass wool》、GB/T 10295-2008《Technology of Steady State Thermal Resistance of Thermal Insulating Material and the measure heat-flow meter method about characteristic》、GB
8624-2010《Construction material and product burns grading performance》、GB/T 25975-2010《External wall external thermal insulation rock wool system
Product》、GB/T 13480-1992《Mineral cotton goods compression performance test method》、JG 149-2003《Expansion joints bellows
External thermal insulation system》、GB/T 8811-2008《Rigid foam dimensional stability test method》、GB/T 10299-
2011《Test method for hydrophobic nature of thermal insulation》、GB/T 11835-2007《Thermal insulation rock wool, mineral wool and its product》.
Alkaline resistance test：The block of glass wool 1 hour of constant weight is soaked with 10% NaOH solution, then with distillation
Water is rinsed, and is weighed after drying, and calculates the mass loss rate of block of glass wool.
As can be seen from the table, the glass plate plate that the present invention is provided has preferable heat-insulating property and physical strength, and
Decay resistance is also preferable；Wherein, compared as can be seen that by the preparation in modified polyurethane by embodiment 3 and reference examples 1
During do not add cationic monomer, it is possible to reduce the thermal conductivity factor of block of glass wool.Being compared by embodiment 3 and reference examples 2 can
Melamine is added to find out, in the 2nd step can reduce the water absorption of glass plate plate.Being compared by embodiment 3 and reference examples 3 can
To find out, lignin is added to after phenolic resin modified, the alkali corrosion resistance performance of block of glass wool can be effectively improved.
Claims (8)
1. a kind of preparation technology of block of glass wool melamine modified phenolic resin, it is characterised in that comprise the following steps：
1st step：By weight, 10~15 parts of polyethylene glycol is taken, vacuum dehydration 2 while stirring at a temperature of 100~110 DEG C
~3h, is cooled to room temperature, adds 5~10 parts of toluene di-isocyanate(TDI), 2~4 parts of cationic monomer, 2~4 parts of maleic acid, two
1~2 part of dibutyl tin laurate, reacts 2~3h at 70~75 DEG C, adds 3~5 parts of glycerine, anti-at 80~85 DEG C
20~60min is answered, modified polyurethane is obtained；
2nd step：By weight, catalyst is added in 60~80 parts of phenol, after intensification, adds anion unsaturated monomer
3~5 parts of 5~10 parts, 3~6 parts of lignin, 3~5 parts of urea and melamine, are reacted；
3rd step：In the product that the 2nd step is obtained, 50~70 parts of modified polyurethane and formaldehyde are added, reacted, instead
After should terminating, cooling discharge obtains phenol-formaldehyde resin modified；
4th step：By phenol-formaldehyde resin modified, 300~600 parts of water, 5~10 parts of amphoteric surfactant, 3~7 parts of silane coupler,
5~10 parts of coupling agent, 2~4 parts of antioxidant are well mixed, and obtain immersion fluid；
5th step：By block of glass wool, 200~400 parts all infiltrate in immersion fluid, are taken out after 20~40 minutes and are placed on dividing plate,
After there is no slurry outflow, insert in drying baker, will be dried at a temperature of 30~80 DEG C, obtain final product.
2. the preparation technology of block of glass wool melamine modified phenolic resin according to claim 1, it is characterised in that：
In the 1st described step, cationic monomer is selected from MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, dimethylaminoethyl acrylate methyl base ammonia
Base ethyl ester or dimethyl diallyl ammonium chloride.
3. the preparation technology of block of glass wool melamine modified phenolic resin according to claim 1, it is characterised in that：
In the 2nd described step, anion unsaturated monomer is selected from methacrylic acid, maleic acid, vinyl sulfonic acid, styrene sulfonic acid, 2-
(methyl) acrylamido -2- methyl propane sulfonic acids, 2- (methyl) acryloyl group ethane sulfonic acids and 2- (methyl) acryloyl group third
Alkyl sulfonic acid and their salt.
4. the preparation technology of block of glass wool melamine modified phenolic resin according to claim 1, it is characterised in that：
In the 2nd described step, between 40~50 DEG C of reaction temperature, 30~60min of reaction time.
5. the preparation technology of block of glass wool melamine modified phenolic resin according to claim 1, it is characterised in that：
In the 2nd described step, described lignin is bamboo acetic acid lignin, corncob alkali lignin, wheat stalk alkali lignin and
Any one or a few in poplar sulfate-reducing conditions.
6. the preparation technology of block of glass wool melamine modified phenolic resin according to claim 1, it is characterised in that：
In the 2nd described step, the catalyst is the mixture of NaOH and zinc oxide, and NaOH is with the mol ratio of zinc oxide
1~1.5：1.
7. the preparation technology of block of glass wool melamine modified phenolic resin according to claim 1, it is characterised in that：
In the 3rd described step, between 90~95 DEG C of reaction temperature, 2~4h of reaction time.
8. the preparation technology of block of glass wool melamine modified phenolic resin according to claim 1, it is characterised in that：
In the 4th described step, coupling agent is silane coupler or titanate coupling agent.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108410314A (en) * | 2018-02-05 | 2018-08-17 | 东莞市大兴化工有限公司 | Antirusting paint, preparation method and applications |
| CN114381086A (en) * | 2020-10-22 | 2022-04-22 | 浙江欧仁新材料有限公司 | Heat and sound insulation cotton felt for large airplane |
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| CN1962260A (en) * | 2005-11-10 | 2007-05-16 | 上海平板玻璃厂 | Environment-friendly formaldehyde-free glass wool |
| CN101508761A (en) * | 2009-03-13 | 2009-08-19 | 江苏文昌电子化工有限公司 | Process for preparing phenolic resin containing nitrogen |
| CN103571155A (en) * | 2012-08-08 | 2014-02-12 | 苏州维艾普新材料有限公司 | Glass cotton felt and preparation method thereof |
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|---|---|---|---|---|
| CN1962260A (en) * | 2005-11-10 | 2007-05-16 | 上海平板玻璃厂 | Environment-friendly formaldehyde-free glass wool |
| CN101508761A (en) * | 2009-03-13 | 2009-08-19 | 江苏文昌电子化工有限公司 | Process for preparing phenolic resin containing nitrogen |
| CN103571155A (en) * | 2012-08-08 | 2014-02-12 | 苏州维艾普新材料有限公司 | Glass cotton felt and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108410314A (en) * | 2018-02-05 | 2018-08-17 | 东莞市大兴化工有限公司 | Antirusting paint, preparation method and applications |
| CN114381086A (en) * | 2020-10-22 | 2022-04-22 | 浙江欧仁新材料有限公司 | Heat and sound insulation cotton felt for large airplane |
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