CN107459615A - The preparation method of multipurpose urea modified phenolic resin - Google Patents
The preparation method of multipurpose urea modified phenolic resin Download PDFInfo
- Publication number
- CN107459615A CN107459615A CN201710511391.7A CN201710511391A CN107459615A CN 107459615 A CN107459615 A CN 107459615A CN 201710511391 A CN201710511391 A CN 201710511391A CN 107459615 A CN107459615 A CN 107459615A
- Authority
- CN
- China
- Prior art keywords
- urea
- added
- modified phenolic
- versatility
- preparation
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
- C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
- C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
- C08G14/06—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
- C08G14/08—Ureas; Thioureas
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/34—Condensation polymers of aldehydes or ketones with monomers covered by at least two of the groups C09J161/04, C09J161/18 and C09J161/20
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a kind of multipurpose urea modified phenolic resin and preparation method thereof, the preparation method of above-mentioned urea-modified phenolic aldehyde (PUF) resin includes：By a collection of addition phenol (P), first aldehyde (F1) and first urea (U1) be added in reactor, catalyst is added, is warming up to 60~90 DEG C, second batch aldehyde (F is added after reacting 30~100min2) and urea (U2), and by the way that first alkali lye (alkali hydroxide soln) is added dropwise, controlling reaction temperature returns to high temperature, after reacting 60~90min, adds the 3rd crowd of aldehyde (F3), and by the way that second batch alkali lye is added dropwise, controlling reaction temperature is no more than 95 DEG C, after reacting 50~80min, adds the 3rd crowd of urea (U3), by adding the 3rd batch of alkali lye, reaction temperature returns to high temperature, F/ (P+U) final mol ratio is 1.18~1.66 in control system, reacts 30~120min, regulation pH value to 11.0~13.0, form pipe falls to steep 1.5~2.0s of determination method, again with applying in 4 glasss of measure viscosity to certain limits, water is added to adjust solid content, cooling discharging.
Description
Technical field
The present invention relates to the preparation method of the urea-modified phenolic aldehyde of versatility (PUF) resin, specifically with a part of urea
Substitute a part of phenol, modified phenolic (PUF) resin synthesized under specific process conditions, prepare based Wood Adhesives, obtain
The high quality of products of low formaldehyde, low cost.
By a collection of addition phenol (P), first aldehyde (F1) and first urea (U1) be added in reactor, add quality
Bivalent metal ion oxide or salt (0.2~0.4wt%P) be catalyst, wherein F/P mol ratio ＜ 1.00, F/ (P+
U mol ratio) is 0.70~0.90, is warming up to 60~90 DEG C, and second batch aldehyde (F is added after reacting 30~100min2) and urea
(U2), and by the way that first alkali lye is added dropwise, controlling reaction temperature returns to high temperature, is admittedly 3~10wt%P containing quality in alkali lye,
The mol ratio that F/P mol ratio is 1.70~2.30, F/ (P+U) in control system is 1.50~1.70, reacts 60~90min
Afterwards, the 3rd crowd of aldehyde (F is added3), and by the way that second batch alkali lye controlling reaction temperature is added dropwise no more than 95 DEG C, alkali lye contains quality admittedly
For 3~10wt%P, the mol ratio that F/P mol ratio is 2.30~3.00, F/ (P+U) in control system is 1.50~1.90, instead
After answering 50~80min, the 3rd crowd of urea (U is added3), high temperature is returned to by adding the 3rd batch of alkaline reaction temperature, alkali lye is solid
It is 14~16wt%P containing quality, F/ (P+U) final mol ratio is 1.18~1.66 in control system, reacts 30~120min,
PH value is adjusted to 11.0~13.0, form pipe, which falls, steeps 1.5~2.0s of determination method, then determines viscosity to certain limit with applying -4 glasss
It is interior, add water to adjust solid content, cooling discharging.
Background technology
The m of Wood-Based Panels in China yield 8838.58 ten thousand in 20073, the industrial adhesive of wood-based plate is estimated according to forest product industry association
535.68 ten thousand tons (100% solid meters), wherein 504.49 ten thousand tons of urea-formaldehyde resin adhesive, account for 94.18%；Phenolic resin glue 25.67 ten thousand
Ton, accounts for 4.79%.The glue-joint strength of phenolic resin glue is high, has excellent weather-proof, water resistance, turns into outdoor stages wood-based plate
Preferred glue kind, is mainly used in the outdoor grade plywoods such as concrete blinding, compartment board, container bottom board.External phenolic resin glue is made
Also it is largely used to produce the particieboard and MDF etc. of building field for based Wood Adhesives, due to oil crisis in recent years, phenolic aldehyde valency
Lattice soar, the reason for making phenolic resin hold at high price, and the country is rarely used in production particieboard, MDF, limit it and extensively should
With.With the increase of urea addition, the cost of resin is reduced, but the increase of urea amount also can as can be seen from the experiment simultaneously
Cause to be declined with the bonding strength of the wood-based plate of the resin so that application is restricted.In recent years, low burst size of methanal people
The research for making plate adhesive obtains remarkable progress.To the Lauxite study on the modification for reducing burst size of methanal, improving bonding strength
It is more active, such as CN1834186, CN1616510.Existing E0The formula of level wood-based plate modified urea-formaldehyde resin glue, prepare work
The report of skill, such as CN1632025, CN1570275, CN1526528, CN101244571.But it is limited to the system of three-ply board mostly
Make, and addition modifying agent etc. is needed in glue, drop aldehyde post processing cost height, complex operation are generally required for multi-layer sheet.
" four kinds of E0Level plywood is with the research of PUF resin structures and property relationship " in describe the glued board that PUF resin glues are suppressed strong
Degree and resin phenol content and-CH2OH contents are relevant, and for invention by studying charging technology in batches, it is suitable to explore
Material quality ratio and mol ratio, make urea fully be reacted in phenolic resin system, obtain the scheme and formula of maturation, improve
The bonding strength of inexpensive PUF resins, production antificielle plate, outdoor wood-based plate, container bottom board, concrete can be reached
The use standard of template and compartment board.
The content of the invention
The technical problem of solution：In order to solve, the cost of phenolic resin existing for prior art is high, color is deep, storage period is short
The shortcomings that, it is urea-modified after resin can reduce cost, but bonding strength is low, it is impossible to meets multiple functions and environment, this hair
It is bright that a kind of preparation method of multipurpose phenol-urea-formaldehyde resin adhesive is provided, it can reach raw using the standby glued board of the resin-made
Wood-based plate, outdoor wood-based plate, container bottom board, the use standard of decoration glued board, concrete blinding and compartment board in lechodochium,
Burst size of methanal meets E0Level requires.
Technical scheme：A kind of preparation method of the urea-modified phenolic aldehyde based Wood Adhesives resin of versatility, it is characterised in that
By mass parts, form and be：
By a collection of addition phenol (P), first aldehyde (F1) and first urea (U1) be added in reactor, add quality
Bivalent metal ion oxide or salt (0.2~0.4wt%P) be catalyst, wherein F/P mol ratio ＜ 1.00, F/ (P+
U mol ratio) is 0.70~0.90, is warming up to 60~90 DEG C, and second batch aldehyde (F is added after reacting 30~100min2) and urea
(U2), and by the way that first alkali lye is added dropwise, controlling reaction temperature returns to high temperature, is admittedly 3~10wt%P containing quality in alkali lye,
The mol ratio that F/P mol ratio is 1.70~2.30, F/ (P+U) in control system is 1.50~1.70, reacts 60~90min
Afterwards, the 3rd crowd of aldehyde (F is added3), and by the way that second batch alkali lye controlling reaction temperature is added dropwise no more than 95 DEG C, alkali lye contains quality admittedly
For 3~10wt%P, the mol ratio that F/P mol ratio is 2.30~3.00, F/ (P+U) in control system is 1.50~1.90, instead
After answering 50~80min, the 3rd crowd of urea (U is added3), high temperature is returned to by adding the 3rd batch of alkaline reaction temperature, alkali lye is solid
It is 14~16wt%P containing quality, F/ (P+U) final mol ratio is 1.18~1.66 in control system, reacts 30~120min,
PH value is adjusted to 11.0~13.0, form pipe, which falls, steeps 1.5~2.0s of determination method, then determines viscosity to certain limit with applying -4 glasss
It is interior, add water to adjust solid content, cooling discharging.
Beneficial effect：
1. the present invention substitutes part phenol using urea and prepares urea modified phenolic resin, phenol substitution rate is high.Wherein, urinate
Element substitutes phenol 0~50%, has certain environmental protection and economic value；
2. the present invention uses urea fortified phenol, the reaction of formaldehyde is promoted, methylolated speed is improved, is advantageous to
The reaction of system；
3. the present invention prepares urea-modified phenolic resin, no subsequent treatment is simple to operate, can prepare direct after large arch dam
Water is added to adjust its solid content；
4. urea modified phenolic resin of the present invention is handled by 4.17 regulations in GB/T 17657-2013, its glue is determined
Plywood bonding strength and qualification rate are far above antificielle plate (LY/T 1738-2008), outdoor wood-based plate (GB/T 9846-
2015), container bottom board (GB/T 19536-2004), concrete blinding (GB/T 17656-2008) and compartment board (LY/T
Use standard 1364-2006).
5. the urea-modified urea modified phenolic resin of the present invention is pressed 4.59 condensed steam waters in GB/T 17657-2013 and determined
Burst size of methanal, the concentration ＜ 0.2% of measure, less than national E0Standard.
6. the urea-modified urea modified phenolic resin of the present invention presses the free benzene of way of distillation measure in GB/T 17657-2013
Phenol, nuisance free phenol ＜ 0.5%.
Embodiment
Selected medicine in the embodiment of the present invention is all the pure rank of analysis.
With reference to specific example, the scheme and effect that the present invention is furture elucidated.
A kind of preparation method of versatility urea modified phenolic resin, forms and is：
By a collection of addition P, F1(formaldehyde, paraformaldehyde, butyraldehyde or glyoxal) and U1It is added in reactor, addition 0.2~
CaO, MgO, BaO or Zn (Ac) of 0.4wt%P mass2, wherein F/P mol ratio ＜ 1.00, F/ (P+U) mol ratio is
0.60~0.90,60~90 DEG C are warming up to, F is added after reacting 30~100min2(formaldehyde, paraformaldehyde, butyraldehyde or glyoxal)
And U2, the mol ratio that F/P mol ratio is 1.70~2.30, F/ (P+U) in control system is 1.50~1.70, then passes through dropwise addition
NaOH、KOH、Ca(OH)2Or Mg (OH)2Solution, controlling reaction temperature return to high temperature, NaOH, KOH, Ca (OH)2Or Mg (OH)2
Admittedly containing quality it is 3~10wt%P in solution, after reacting 60~90min, adds F3(formaldehyde, paraformaldehyde, butyraldehyde or second two
Aldehyde), and by the way that second batch NaOH, KOH, Ca (OH) is added dropwise2Or Mg (OH)2Solution, no more than 95 DEG C of controlling reaction temperature,
NaOH、KOH、Ca(OH)2Or Mg (OH)2Solution is admittedly 3~10wt%P containing quality, and F/P mol ratio is 2.30 in control system
~3.00, F/ (P+U) mol ratio are 1.50~1.90, after reacting 50~80min, add U3, by add the 3rd crowd of NaOH,
KOH、Ca(OH)2Or Mg (OH)2Solution, reaction temperature return to high temperature, NaOH, KOH, Ca (OH)2Or Mg (OH)2Solution contains admittedly
Quality is 14~16wt%P, and (P+U final mol ratio is 1.18~1.66 to F/, reacts 30~120min, is adjusted in control system
PH value is saved to 11.0~13.0, form pipe, which falls, steeps 1.5~2.0s of determination method, then is determined with applying -4 glasss in viscosity to certain limits,
Water is added to adjust solid content, cooling discharging.
Above-mentioned concentration of lye used is 30%, 40% or 50%.
Embodiment 1：
150 parts of phenol of addition, 110 parts of formalins (37%), 90 parts of urea, 0.3 part of CaO are warming up to 88 in a kettle
DEG C, start clock reaction 50min；100 parts of formalins (37%) and 90 parts of urea are added, and by the way that 15 parts of NaOH solutions are added dropwise
(50%), controlling reaction temperature is increased to 85 DEG C, reacts 50min；70 parts of formalins (37%) are added, and by being added dropwise 15 parts
NaOH solution (50%), 85-90 DEG C of reaction 40min of controlling reaction temperature；18 parts of urea are added, by adding 40 parts of NaOH solutions
(50%), 80~85 DEG C of controlling reaction temperature, reaction 30min, regulation pH value to 11.0~13.0, measure viscosity to 100~
In 500mPaS certain limits, water regulation is added to contain admittedly, cooling discharging.
Prepare versatility urea modified phenolic resin based Wood Adhesives, the flour that addition mass fraction is 20%, gluing
Measure as 300~320g/m2Veneer, the compound five-ply board of eucalyptus poplar of solid wooden compound floor technique compacting, testing result are listed in subordinate list 1.
Embodiment 2：
150 parts of phenol, 120 parts of paraformaldehyde solutions (37%), 15 parts of urea, 0.7 part of MgO heating are added in a kettle
To 88 DEG C, start clock reaction 60min；120 parts of paraformaldehyde solutions (37%) and 15 parts of urea are added, and by being added dropwise 15 parts
NaOH solution (40%), controlling reaction temperature are increased to 85 DEG C of timing, react 60min；Add 40 parts of paraformaldehyde solutions
(37%), and by the way that 20 parts of NaOH solutions (40%), 85-90 DEG C of reaction 50min of controlling reaction temperature is added dropwise；Add 25 parts of urine
Element, by adding 40 parts of NaOH solutions (40%), 80~85 DEG C of controlling reaction temperature reacts 50min, regulation pH value to 11.0~
13.0, determine in viscosity to 100~500mPaS certain limits, add water regulation to contain admittedly, cooling discharging.
Prepare versatility urea modified phenolic resin based Wood Adhesives, the flour that addition mass fraction is 20%, gluing
Measure as 300~320g/m2Veneer, the compound five-ply board of eucalyptus poplar of container floor technique compacting, testing result are listed in subordinate list 1.
Embodiment 3：
100 parts of phenol of addition, 80 parts of formalins (37%), 20 parts of urea, 0.7 part of MgO are warming up to 88 in a kettle
DEG C, start clock reaction 70min and add 90 parts of formalins (37%), and by the way that 10 parts of NaOH solutions (40%), control is added dropwise
Reaction temperature is increased to 85~90 DEG C, reacts 70min；40 parts of formalins (37%) and 20 parts of urea are added, and pass through dropwise addition
10 parts of NaOH solutions (40%), 85-90 DEG C of reaction 50min of controlling reaction temperature；15 parts of urea are added, by adding 30 parts of NaOH
Solution (40%), 80~85 DEG C of controlling reaction temperature, react 70min, regulation pH value to 11.0~13.0, measure viscosity to 100
In~500mPaS certain limits, water regulation is added to contain admittedly, cooling discharging.
Prepare versatility urea modified phenolic resin based Wood Adhesives, the flour that addition mass fraction is 20%, gluing
Measure as 300~320g/m2Veneer, the compound five-ply board of eucalyptus poplar of container floor technique compacting, testing result are listed in subordinate list 1.
Embodiment 4：
80 parts of phenol of addition, 90 parts of formalins (37%), 45 parts of urea, 0.7 part of BaO are warming up to 88 in a kettle
DEG C, start clock reaction 30min；120 parts of formalins (37%) and 45 parts of urea are added, and by the way that 15 parts of KOH solutions are added dropwise
(50%), controlling reaction temperature is increased to 85~90 DEG C, reacts 80min；70 parts of formalins (37%) are added, and pass through dropwise addition
20 parts of KOH solutions (50%), 85-90 DEG C of reaction 60min of controlling reaction temperature；18 parts of urea are added, it is molten by adding 35 parts of KOH
Liquid (50%), 80 DEG C of controlling reaction temperature, reaction 90min, regulation pH value to 11.0~13.0, measure viscosity to 100~
In 500mPaS certain limits, water regulation is added to contain admittedly, cooling discharging.
Prepare versatility urea modified phenolic resin based Wood Adhesives, the flour that addition mass fraction is 20%, gluing
Measure as 300~320g/m2Veneer, the compound five-ply board of eucalyptus poplar of concrete blinding technique compacting, testing result are listed in subordinate list 1.
Embodiment 5：
100g phenol, 85 parts of glyoxal solutions (37%), 20 parts of urea and 0.4 part of Zn (Ac) are added in reactor2, heating
To 88 DEG C, start clock reaction 40min；100 parts of glyoxal solutions (37%) and 20 parts of urea are added, and by being added dropwise 15 parts
NaOH solution (40%), controlling reaction temperature are increased to 85~90 DEG C, react 90min；25 parts of glyoxal solutions (37%) are added,
And by the way that 15 parts of NaOH solutions (40%), 85-90 DEG C of reaction 70min of controlling reaction temperature is added dropwise；15 parts of urea are added, by adding
Entering 45 parts of NaOH solutions (40%), 80~85 DEG C of controlling reaction temperature reacts about 110min, regulation pH value to 11.0~13.0,
Determine in viscosity to 100~500mPaS certain limits, add water regulation to contain admittedly, cooling discharging.
Prepare versatility urea modified phenolic resin this material adhesive, the flour that addition mass fraction is 20%, gluing
Measure as 300~320g/m2Veneer, the compound five-ply board of eucalyptus poplar that decoration is suppressed with glued board technique, testing result are listed in subordinate list 1.
Embodiment 6：
70 parts of phenol, 110 parts of butyraldehyde solution (37%), 60 parts of urea and 0.2 part of CaO are added in a kettle, are warming up to
88 DEG C, start clock reaction 60min；125 parts of butyraldehyde solution (37%) and 60 parts of urea are added, and by the way that 15 parts of Mg are added dropwise
(OH)2Solution (40%), controlling reaction temperature are increased to 85~90 DEG C, react 100min；50 parts of butyraldehyde solution (37%) are added,
And by the way that 20 parts of Mg (OH) are added dropwise2Solution (40%), 85-90 DEG C of reaction 90min of controlling reaction temperature；15 parts of urea are added, are led to
Cross and add 40 parts of Mg (OH)2Solution (40%), 80~85 DEG C of controlling reaction temperature, react about 120min, regulation pH value to 11.0
~13.0, determine in viscosity to 100~500mPaS certain limits, add water regulation to contain admittedly, cooling discharging.
Prepare versatility urea modified phenolic resin based Wood Adhesives, the flour that addition mass fraction is 20%, gluing
Measure as 300~320g/m2Veneer, the compound five-ply board of eucalyptus poplar of outdoor artificial panel technology compacting, testing result are listed in subordinate list 1.
Embodiment 7：
150 parts of phenol, 110 parts of formalins (37%), 9 parts of urea and 0.3 part of MgO are added in a kettle, are warming up to
88 DEG C, start clock reaction 60min；100 parts of formalins (37%) and 9 parts of urea are added, and by the way that 14 parts of Ba (OH) are added dropwise2
Solution (40%), controlling reaction temperature are increased to 85~90 DEG C, react 100min；70 parts of formalins (37%) are added, and are led to
Cross and 14 parts of Ba (OH) are added dropwise2Solution (40%), 85-90 DEG C of reaction 90min of controlling reaction temperature；18 parts of urea are added, by adding
Enter 40 parts of Ba (OH)2Solution (40%), 80~85 DEG C of controlling reaction temperature, reaction about 120min, regulation pH value to 11.0~
13.0, determine in viscosity to 100~500mPaS certain limits, add water regulation to contain admittedly, cooling discharging.
Prepare versatility urea modified phenolic resin based Wood Adhesives, the flour that addition mass fraction is 20%, gluing
Measure as 300~320g/m2Veneer, the compound five-ply board of eucalyptus poplar of outdoor artificial panel technology compacting, testing result are listed in subordinate list 1.
Comparative example 1：Conventional urea phenol-formaldehyde resin modified (PUF)
150 parts of phenol of addition, 110 parts of formalins (37%), 0.3 part of MgO are warming up to 88 DEG C in a kettle, start to count
Shi Fanying 50min；100 parts of formalins (37%) are added, by the way that 14 parts of Ba (OH) are added dropwise2Solution (40%), control reaction temperature
Degree is increased to 85~90 DEG C, reacts 100min；70 parts of formalins (37%) are added, and by the way that 14 parts of Ba (OH) are added dropwise2Solution
(40%), 85-90 DEG C of reaction 90min of controlling reaction temperature, adds 36 parts of urea, by adding 40 parts of Ba (OH)2Solution
(40%), 80~85 DEG C of controlling reaction temperature, reaction about 120min, regulation pH value to 11.0~13.0, measure viscosity to 100~
In 500mPaS certain limits, water regulation is added to contain admittedly, cooling discharging.
Prepare versatility urea modified phenolic resin based Wood Adhesives, the flour that addition mass fraction is 20%, gluing
Measure as 300~320g/m2Veneer, the compound five-ply board of eucalyptus poplar of outdoor stages artificial panel technology compacting, testing result are listed in subordinate list 1.
Subordinate list 1：Versatility urea modified phenolic resin glue physical and chemical index
Subordinate list 2：PUF resin lumber adhesive pressing plate testing results
Data can see resin its glue performance of the present invention and meet interior wood-based plate (LY/T 1738- in consolidated statement
2008), outdoor wood-based plate (GB/T 9846-2015), container bottom board (GB/T 19536-2004), concrete blinding (GB/T
17656-2008) and compartment board (LY/T 1364-2006) requirement.
The detection of above-mentioned PUF resins：Viscosity uses 25 DEG C of conditions of NDJ-1 rotation viscometers by GB/T14074-2006 regulations
Lower detection；Solids content is detected by GB/T14074-2006 regulation；Bonding strength and burst size of methanal press GB/T 17657-
2013 regulation detection.
Claims (7)
- A kind of 1. preparation method of the urea-modified phenolic aldehyde based Wood Adhesives resin of versatility, it is characterised in that：By a collection of addition phenol (P), first aldehyde (F1) and first urea (U1) be added in reactor, add the two of quality The oxide or salt (0.2~0.4wt%P) of valence metal ion are catalyst, wherein F/P mol ratio ＜ 1.00, F/'s (P+U) Mol ratio is 0.70~0.90, is warming up to 60~90 DEG C, and second batch aldehyde (F is added after reacting 30~100min2) and urea (U2), Admittedly containing quality it is 3~10wt%P in alkali lye and by being added dropwise first alkali lye, controlling reaction temperature returns to high temperature, control volume The mol ratio that F/P mol ratio is 1.70~2.30, F/ (P+U) in system is 1.50~1.70, after reacting 60~90min, is added 3rd crowd of aldehyde (F3), and by the way that second batch alkali lye controlling reaction temperature is added dropwise no more than 95 DEG C, alkali lye admittedly containing quality be 3~ 10wt%P, the mol ratio that F/P mol ratio is 2.30~3.00, F/ (P+U) in control system is 1.50~1.90, reaction 50 After~80min, the 3rd crowd of urea (U is added3), high temperature is returned to by adding the 3rd batch of alkaline reaction temperature, alkali lye contains matter admittedly Measure as 14~16wt%P, F/ (P+U) final mol ratio is 1.18~1.66 in control system, reacts 30~120min, regulation For pH value to 11.0~13.0, form pipe, which falls, steeps 1.5~2.0s of determination method, then with applying in -4 glasss of measure viscosity to certain limits, adds Water adjusts solid content, cooling discharging.
- 2. the preparation method of the urea-modified phenolic aldehyde based Wood Adhesives resin of versatility, its feature exist according to claim 1 In：The urea-modified phenolic aldehyde based Wood Adhesives resin urea Replacement rate of versatility can be zero, i.e., same process produces Phenolic resin (PF).
- 3. the preparation method of the urea-modified phenolic aldehyde based Wood Adhesives resin of versatility, its feature exist according to claim 1 In：The urea-modified phenolic aldehyde based Wood Adhesives resin of versatility can be used for producing antificielle plate, outdoor wood-based plate, collection Vanning bottom plate, concrete blinding and compartment board.
- 4. the preparation method of the urea-modified phenolic aldehyde based Wood Adhesives resin of versatility, its feature exist according to claim 1 In：Described alkali lye is alkali hydroxide soln：Sodium hydroxide, calcium hydroxide, barium hydroxide, potassium hydroxide and hydroxide Any one in magnesium, ensure final pH=11.0~13.0 of the urea-modified phenolic aldehyde based Wood Adhesives resin of versatility.
- 5. the preparation method of versatility urea modified phenolic resin according to claim 1, it is characterised in that：Aldehyde used Class is according to the different aldehydes solution for selecting various concentrations of application conditions, with any in formaldehyde, paraformaldehyde, butyraldehyde and glyoxal It is a kind of.
- 6. the preparation method of versatility urea modified phenolic resin according to claim 1, it is characterised in that：Two added Valence metal ion oxide or salt are CaO, MgO, BaO, Zn (Ac)2In any one.
- 7. the preparation method of versatility urea modified phenolic resin according to claim 1, it is characterised in that preparation it is more The urea-modified phenolic aldehyde based Wood Adhesives resin solid content of purposes is 40~60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511391.7A CN107459615A (en) | 2017-06-26 | 2017-06-26 | The preparation method of multipurpose urea modified phenolic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511391.7A CN107459615A (en) | 2017-06-26 | 2017-06-26 | The preparation method of multipurpose urea modified phenolic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107459615A true CN107459615A (en) | 2017-12-12 |
Family
ID=60546438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710511391.7A Pending CN107459615A (en) | 2017-06-26 | 2017-06-26 | The preparation method of multipurpose urea modified phenolic resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107459615A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108192545A (en) * | 2018-01-12 | 2018-06-22 | 厦门市点同昌包装有限公司 | A kind of overlay film external packing box and its manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140156A (en) * | 2011-01-25 | 2011-08-03 | 中国林业科学研究院林产化学工业研究所 | Preparation method of phenol-urea-formaldehyde resin adhesive for E0-grade outdoor plywood |
| CN102898605A (en) * | 2012-07-11 | 2013-01-30 | 中国林业科学研究院林产化学工业研究所 | Preparation method of urea-phenol-formaldehyde resin adhesive used for E0 grade solid wood composite floorboard |
| CN103122053A (en) * | 2012-09-07 | 2013-05-29 | 谢再锋 | Preparation method of urea modified phenolic resin |
-
2017
- 2017-06-26 CN CN201710511391.7A patent/CN107459615A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140156A (en) * | 2011-01-25 | 2011-08-03 | 中国林业科学研究院林产化学工业研究所 | Preparation method of phenol-urea-formaldehyde resin adhesive for E0-grade outdoor plywood |
| CN102898605A (en) * | 2012-07-11 | 2013-01-30 | 中国林业科学研究院林产化学工业研究所 | Preparation method of urea-phenol-formaldehyde resin adhesive used for E0 grade solid wood composite floorboard |
| CN103122053A (en) * | 2012-09-07 | 2013-05-29 | 谢再锋 | Preparation method of urea modified phenolic resin |
Non-Patent Citations (3)
| Title |
|---|
| 王雪莹 等: ""苯酚-尿素-甲醛共聚树脂合成及其在胶合板中的应用"", 《林产工业》 * |
| 赵临五 等: ""E0级室外型胶合板用PUF树脂胶的研制"", 《粘接》 * |
| 赵临五 等: ""四种E0级胶合板用PUF树脂结构与性能关系的研究"", 《林产工业》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108192545A (en) * | 2018-01-12 | 2018-06-22 | 厦门市点同昌包装有限公司 | A kind of overlay film external packing box and its manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101191042B (en) | Method for preparing urea-formaldehyde resin adhesive | |
| CN101191043B (en) | Method for preparing urea-formaldehyde resin adhesive | |
| CN101492522B (en) | Method of preparing alkali lignin modified phenolic resin | |
| CN100551649C (en) | The preparation method of E0 level plywood | |
| CN102086295A (en) | Urea-formaldehyde resin for non-dewatering particleboard and preparation method thereof | |
| CN101050342A (en) | Method for preparing environmental protection type binder in use for wood processing | |
| CN1884332B (en) | Urea-formaldehyde resin and its preparation method | |
| CN103613727B (en) | Preparation method of lignin-modified phenol aldehyde resin adhesive | |
| CN107522830A (en) | A kind of preparation method of dipping modified melamine-formaldehyde resin | |
| CN102268139B (en) | Resin additive and preparation method and use thereof | |
| CN104311767A (en) | Modified urea-formaldehyde resin adhesive and preparation method thereof | |
| CN107236500A (en) | The preparation method of lignin sulfonate modified urea-phenolic resin | |
| CN101481593B (en) | Preparation of urea-melamine-formaldehyde resin adhesive for E0-grade floor | |
| CN109575878A (en) | One kind being based on dregs of beans adhesive tannin based cross-linker and its application | |
| CN103865459B (en) | Containing the Phenol aldehyde resin and preparation method thereof of potassium ion basic cpd | |
| CN107459615A (en) | The preparation method of multipurpose urea modified phenolic resin | |
| CN104762040B (en) | A kind of Low Toxicity Urea-Formaldehyde Resin Adhesive and preparation method thereof | |
| CN104910842B (en) | Preparation method of resorcinol modified urea-formaldehyde resin adhesive | |
| CN108192544B (en) | Nano-cellulose modified low-molar-ratio urea-formaldehyde resin adhesive and preparation method thereof | |
| CN101191039A (en) | Method for preparing paper-making black liquor adhesive | |
| CN105086896A (en) | Urea formaldehyde resin adhesive for wood composite floor boards | |
| CN102140156B (en) | Preparation method of phenol-urea-formaldehyde resin adhesive for E0-grade outdoor plywood | |
| CN101591867A (en) | Melamine modified urea-formaldehyde resin used for dipping paper of decorative laminated plate and preparation method thereof | |
| CN104762041B (en) | Modified urea resin adhesive and preparation method thereof | |
| CN104086731A (en) | Preparation method of urea-formaldehyde resin from straw ethanol byproduct |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171212 |