CN106883798A - The consolidated floor base material manufacture adhesive that is modified - Google Patents
The consolidated floor base material manufacture adhesive that is modified Download PDFInfo
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- CN106883798A CN106883798A CN201710253860.XA CN201710253860A CN106883798A CN 106883798 A CN106883798 A CN 106883798A CN 201710253860 A CN201710253860 A CN 201710253860A CN 106883798 A CN106883798 A CN 106883798A
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- 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
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic and acyclic or carbocyclic compounds
-
- 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
- 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
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08G12/34—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds and acyclic or carbocyclic compounds
- C08G12/36—Ureas; Thioureas
- C08G12/38—Ureas; Thioureas and melamines
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- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Floor Finish (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses the manufacture of consolidated floor base material with modified adhesive, it is made up of the raw material of following weight portion：51.0~55.0 parts of industrial formol, 36.0~40.0 parts of industrial urea, 2.0~2.9 parts of melamine, 0.2~0.49 part of modifying agent, 1.6~2.0 parts of reinforcing agent；The mass concentration of the industrial formol is 37%；Its preparation process makes raw material react completion in weak acid, faint acid to neutral, alkalescent successively.Remarkable advantage of the invention is, adhesive manufactures short time, efficiency high, low cost, it is less demanding to synthesis device, manufacturing condition, artificial board enterprise glue department without need increase equipment i.e. be capable of achieving the manufacturing, can produce E1/E0 grades of consolidated floor base material using adhesive of the invention, with bonding strength it is high, hardening time is short, waterproof water-tolerant and the low advantage of free formaldehyde release.
Description
Technical field
The invention belongs to the modified adhesive technical field of wood-based plate, and in particular to the consolidated floor base material manufacture gluing that is modified
Agent.
Background technology
Because urea-formaldehyde resin adhesive has glue-joint strength high, quick solidifying, lighter color, low cost, and raw material is easy to get, gives birth to
Produce technology maturation and it is easy to use the advantages of, China MDF manufacture more than 90% use urea-formaldehyde resin adhesive.Laminated flooring is used as room
One of main material of interior decoration is widely used.With the continuous improvement of people's living standard, the requirement to living environment is also got over
Come higher, the theory of environment-friendly decorative material has been rooted in the hearts of the people, therefore, the Form aldehyde release problem of flooring product is increasingly subject to people
Concern.Formaldehyde is a kind of very active chemical substance.The European Community and Environmental Protection Agency（EPA）Formaldehyde is classified as can
The carcinogenic material of energy, China has also made the standard and regulation about limiting artificial board formaldehyde burst size.The Lauxite system of using
The artifical plate product for making has burst size of methanal big, the poor shortcoming of water-fast, resistance to ag(e)ing, increasingly increases in current Environmental Safety consciousness
In the case of strong, the burst size of methanal of artifical plate product how is reduced, the shortcomings of overcome its poor water resistance, be one and carved not
Hold slow problem.
The process route of production E1 grades of flooring substrate of environmental protection is broadly divided into two types both at home and abroad at present：One kind side
Method be using reduce adhesive mol ratio, improve adhesive-preparing technology, urea-formaldehyde resin adhesive is modified, in glue add formaldehyde catch
Catch agent, preferred consolidation agent, improve hardener dose etc..Another method is that later stage ammonia cure treatment is carried out to sheet material.Using ammonia cure
Treatment base material can reach E1 grades of environmental requirement, and the physical and mechanical property of sheet material is also not adversely affected, but residual in base material
Ammonia brings new indoor pollution problem.
Burst size of methanal is mainly reduced by the modified urea-formaldehyde glue of low mole prop0rtion both at home and abroad at present.Many researchs and production
Show, be to reduce using measures such as mol ratio, adjustment reaction process and the fed batch for reducing formaldehyde and urea in Lauxite
One of main path of sheet material burst size of methanal, but in resin mol ratio reduction, glue performance can be caused to reduce, storage is steady
Qualitative decline, hardening time is elongated, and pressing cycle increases, production efficiency reduction, improves manufacturing cost.Reduce formaldehyde/urea
The key of mol ratio is one appropriate ratio of selection, additionally, it is also state in recent years that modifying agent, agent for capturing are added during glue
Interior outside upper popular way.Cyclic structure amine, amide-type, ammonium salt are such as used, is added by resins synthesis copolymerization, later stage
Plus the release that can efficiently reduce free formaldehyde is caught, while the bonding strength and water resistance of reinforced resin.But these
Method is primarily present production efficiency reduction at present, and the bottleneck problem being more expensive to manufacture, artificial board enterprise is difficult to receive, and mostly
Number enterprise is only capable of producing the E2 grade urea-formaldehyde resin gluing agent of furniture template.For with load bearing stength and low content of free formaldehyde ring
E1/E0 grades of modified urea-formaldehyde resin adhesive of the consolidated floor base material of guaranteed request is at present also in research or test manufacture stage.Therefore,
The synthesis technique of the weak base-weak acid-weak base three-step approach for improving traditional how is innovated, how to improve the molecular structure of adhesive, subtracted
Few production cost, improves product strength, reduces burst size of methanal etc., and the technical bottleneck as puzzlement professional always is asked
Topic.Therefore, innovative development goes out the consolidated floor base material manufacture gluing that is modified of a kind of low cost, super-strength, ultralow free formaldehyde
Agent is significant.
The content of the invention
It is an object of the invention to：For above-mentioned deficiency, the invention solves the problems that consolidated floor base material presently, there are
Be more expensive to manufacture, the series of technical such as low intensity, poor water resistance and free formaldehyde release pollution, while providing a kind of
Modified adhesive that environmental protection, low cost, high intensity and storage have been stablized and preparation method thereof.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of consolidated floor base material manufacture adhesive that is modified, it is characterised in that be made up of the raw material of following weight portion：Industrial first
51.0~55.0 parts of aldehyde, 36.0~40.0 parts of industrial urea, 2.0~2.9 parts of melamine, 0.2~0.49 part of modifying agent, enhancing
1.6~2.0 parts of agent；The mass concentration of the industrial formol is 37%.
Currently preferred technical scheme is that described consolidated floor base material is manufactured with modified adhesive, by following weight
The raw material of part is made：53.0 parts of industrial formol, 38.0 parts of industrial urea, 2.5 parts of melamine, 0.33 part of modifying agent, reinforcing agent
1.8 parts；The mass concentration of the industrial formol is 37%.
Further, the modifying agent is the mixture of pregnancy urotropine and ammonium salt；The reinforcing agent is oxidized starch.
Further, the pregnancy urotropine and ammonium salt are mixed with any part by weight.It is preferred that the weight of pregnancy urotropine
Not less than the weight of ammonium salt, preferably pregnancy urotropine：Ammonium salt=6~9：4~1, the ratio can more effectively promote initial reaction to give birth to
Into more two, trihydroxy methylurea, improve synthetic reaction speed and bonding strength is high, shorten adhesive hardening time.
Further, the described consolidated floor base material manufacture preparation method of modified adhesive, including following technique step
Suddenly：
（1）In a kettle., input industrial formol, modifying agent and first time melamine, start agitator, and agitating heating heats up
To 45~65 DEG C, 10~30min is incubated；
（2）Detection pH value, it is 5.0~6.0 to add formic acid solution regulation pH value, adds first time industrial urea, is continuously heating to
80~90 DEG C, it is incubated 10~30min；
（3）Detection reactive polymeric degree, when it is 13~16s to reach -4 glasss of viscosity of painting, the pH value of addition soda bath regulation immediately is
After 6.5~7.0, second industrial urea and second melamine are added, be incubated 20~40min；
（4）Third time industrial urea and reinforcing agent are added, and 10~30min is incubated in 75~80 DEG C；
（5）40 DEG C are cooled to, pH=7.5~8.5 blowing is adjusted with soda bath, it is standby.
Further, in preparation process raw material successively in weak acidic medium pH=5.0~6.0, faint acid to neutral medium
Reacted in pH=6.5~7.0, weak alkaline medium pH=7.5~8.5.
Further, the described consolidated floor base material manufacture preparation method of modified adhesive, in step（2）、（3）With
（4）In, the first time, second, third time industrial urea addition are respectively industrial urea total amount：40~45%, 20~
25%th, 30~40%.
Further, the described consolidated floor base material manufacture preparation method of modified adhesive, in step（1）With（3）
In, the first time, second melamine addition are respectively melamine total amount：10~30%, 70~90%.
Urea feeds intake in three times in course of reaction of the present invention, and melamine feeds intake twice, and remaining raw material once feeds intake；It is described
Raw material is successively in weak acidic medium pH=5.0~6.0, faint acid to neutral medium pH=6.5~7.0, weak alkaline medium pH=
Reacted in 7.5~8.5 and completed.It is 190~220 using the applying consumption of modified adhesive production enhancement floor base material of the invention
㎏/m3。
Modified adhesive quality of the invention is：Outward appearance is white viscous liquid, free formaldehyde≤0.08%, viscosity=16~
25s（20 DEG C, T-4 glasss）, hardening time=105~250s, solids content=54 ± 1.0%, pH value=7.5~8.5, storage period >=
20d。
In sum, as a result of such scheme, the present invention has the positive effect that the present invention：
（1）Modified adhesive of the invention is simple to manufacture, it is easy to production operation, less demanding to equipment, manufacturing condition, greatly
The glue department of part artificial board enterprise without need increase equipment i.e. be capable of achieving production application, without increasing equipment investment.
（2）Mixed as modifying agent with arbitrary proportion the present invention be directed to traditional consolidated floor base material, be increasing with reinforcing agent
Strong agent, and course of reaction urea feeds intake the technique and mass defect problem of the glutinous agent of modified urea-formaldehyde resin glue, innovative development in three times
It is that arbitrary proportion in ammonium salt is mixed into modifying agent with pregnancy urotropine, urea feeds intake in three times, melamine feeds intake at twice,
The mode that remaining raw material once feeds intake.
（3）The weak acid initial reaction step of the modified adhesive of the present invention is in the weak acid medium of pH value 5~6 while carrying out
The addition and polycondensation reaction of urea and formaldehyde, the gentle easy operation control of synthetic reaction speed, be traditional urea-formaldehyde glue weak base-
Innovation improvement is carried out on the basis of weak acid-weak base technique, the molecular structure of glue can be effectively improved, reduce acid and alkali consumption, reduced anti-
Between seasonable, also improve product strength, the distinguishing feature such as burst size of methanal reduction.
（4）Modified adhesive raw material sources of the invention are wide, with cost it is relatively low, bonding strength is high, good waterproof performance, solidification
Time is short, resting period is long and the low distinguishing feature of free formaldehyde, with very strong market competition advantage.
（5）Using the environmentally friendly consolidated floor base material of modified adhesive production of the invention, with bonding strength is high, good waterproof performance
And the low advantage of cost, its burst size of methanal is far below GB GB 18580-2001《Indoor decorating and refurnishing materials wood-based plate and
Form aldehyde release limitation in its product》E1 grades（≤9.0mg/100g)）Standard requirement, and burst size of methanal reaches E1/EO grades of Europe（≤
5.0mg/100g) and ★ grades of Japan F ★ ★ ★ environmental protection standard requirement, its physical and mechanical property reaches professional standard LY/T
1611-2011《Floor base material fiberboard》Regulation requirement, realizes floor base material high intensity, high-dimensional stability and green ring
The characteristic of guarantor.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.In addition to special indicating,
Degree of the present invention is mass percent.Based on the embodiment in the present invention, those of ordinary skill in the art exist
The every other embodiment obtained under the premise of creative work is not made, the scope of protection of the invention is belonged to.
Embodiment 1
A kind of consolidated floor base material manufacture adhesive that is modified, its composition of raw materials is as shown in table 1：
Table 1
Note：U1, U2, U3 represent respectively urea for the first time, second, third time addition, M1, M2 represent melamine the respectively
Once, second addition, similarly hereinafter.
Wherein, the modifying agent is the mixture of pregnancy urotropine and ammonium salt, the pregnancy urotropine：Ammonium salt=6：4；Institute
Reinforcing agent is stated for oxidized starch.
The consolidated floor base material manufacture preparation method of modified adhesive described above, comprises the following steps that：
（1）In a kettle., input formaldehyde, modifying agent and first time melamine（M1）, starting agitator, agitating heating heats up
To 45~65 DEG C, 10~20min is incubated；
（2）Detection pH value, it is 5.0~5.2 to add formic acid solution regulation pH value, adds first time industrial urea（U1）, continue to rise
Temperature is incubated 10~30min to 80~90 DEG C；
（3）Detection reactive polymeric degree, -4 glasss are applied when reaching（25℃）When viscosity is 13~14s, soda bath regulation is added immediately
PH value be 6.5~6.7 after, add second industrial urea（U2）And second melamine（M2）, insulation 20~
30min；
（4）Add third time industrial urea（U3）And reinforcing agent, and it is incubated 10~30min in 75~80 DEG C；
（5）40 DEG C are cooled to, pH=7.5~8.0 blowing is adjusted with soda bath, it is standby.
Further, in preparation process raw material successively in weak acidic medium pH=5.0~6.0, faint acid to neutral medium
Reacted in pH=6.5~7.0, weak alkaline medium pH=7.5~8.5；In step（2）、（3）With（4）In, the first time,
Secondary, third time industrial urea addition is respectively：U1=170、U2=110、U3=80；In step（1）With（3）In, described first
Secondary, second melamine addition is respectively：M1=2、M2=18.
The modified adhesive quality index prepared according to embodiment 1 is as shown in table 2：
Table 2
Embodiment 2
A kind of consolidated floor base material manufacture adhesive that is modified, its composition of raw materials is as shown in table 3：
Table 3
Wherein, the modifying agent is the mixture of pregnancy urotropine and ammonium salt, the pregnancy urotropine：Ammonium salt=9：1；The increasing
Strong agent is oxidized starch.
The consolidated floor base material manufacture preparation method of modified adhesive described above, comprises the following steps that：
（1）In a kettle., input formaldehyde, modifying agent and first time melamine（M1）, starting agitator, agitating heating heats up
To 45~65 DEG C, 20~30min is incubated；
（2）Detection pH value, it is 5.7~6.0 to add formic acid solution regulation pH value, adds first time industrial urea（U1）, continue to rise
Temperature is incubated 10~20min to 80~85 DEG C；
（3）Detection reactive polymeric degree, -4 glasss are applied when reaching（25℃）When viscosity is 14~15s, soda bath regulation is added immediately
PH value be 6.7~7.0 after, add second industrial urea（U2）And second melamine（M2）, insulation 20~
30min；
（4）Add third time industrial urea（U3）And reinforcing agent, and it is incubated 20~30min in 75~80 DEG C；
（5）40 DEG C are cooled to, pH=8.0~8.5 blowing is adjusted with soda bath, it is standby.
Further, in preparation process raw material successively in weak acidic medium pH=5.0~6.0, faint acid to neutral medium
Reacted in pH=6.5~7.0, weak alkaline medium pH=7.5~8.5；In step（2）、（3）With（4）In, the first time,
Secondary, third time industrial urea addition is respectively：U1=190、U2=115、U3=95；In step（1）With（3）In, described first
Secondary, second melamine addition is respectively：M1=8.7、M2=20.3.
The modified adhesive quality index prepared according to embodiment 2 is as shown in table 4：
Table 4
Embodiment 3
A kind of consolidated floor base material manufacture adhesive that is modified, its composition of raw materials is as shown in table 5：
Table 5
Wherein, the modifying agent is the mixture of pregnancy urotropine and ammonium salt, the pregnancy urotropine：Ammonium salt=8：2；The increasing
Strong agent is oxidized starch.
The consolidated floor base material manufacture preparation method of modified adhesive described above, comprises the following steps that：
（1）In a kettle., input formaldehyde, modifying agent and first time melamine（M1）, starting agitator, agitating heating heats up
To 45~65 DEG C, 10~20min is incubated；
（2）Detection pH value, it is 5.2~5.5 to add formic acid solution regulation pH value, adds first time industrial urea（U1）, continue to rise
Temperature is incubated 10~20min to 80~90 DEG C；
（3）Detection reactive polymeric degree, -4 glasss are applied when reaching（25℃）When viscosity is 15~16s, soda bath regulation is added immediately
PH value be 6.7~6.9 after, add second industrial urea（U2）And second melamine（M2）, insulation 20~
30min；
（4）Add third time industrial urea（U3）And reinforcing agent, and it is incubated 20~30min in 75~80 DEG C；
（5）40 DEG C are cooled to, pH=7.8~8.2 blowing is adjusted with soda bath, it is standby.
Further, in preparation process raw material successively in weak acidic medium pH=5.0~6.0, faint acid to neutral medium
Reacted in pH=6.5~7.0, weak alkaline medium pH=7.5~8.5；In step（2）、（3）With（4）In, the first time,
Secondary, third time industrial urea addition is respectively：U1=175、U2=95、U3=120；In step（1）With（3）In, described first
Secondary, second melamine addition is respectively：M1=5.2、M2=20.8.
The modified adhesive quality index prepared according to embodiment 3 is as shown in table 6：
Table 6
Embodiment 4
A kind of consolidated floor base material manufacture adhesive that is modified, its composition of raw materials is as shown in table 7：
Table 7
Wherein, the modifying agent is the mixture of pregnancy urotropine and ammonium salt, the pregnancy urotropine：Ammonium salt=5：5；The increasing
Strong agent is oxidized starch.
The consolidated floor base material manufacture preparation method of modified adhesive described above, comprises the following steps that：
（1）In a kettle., input formaldehyde, modifying agent and first time melamine（M1）, starting agitator, agitating heating heats up
To 45~65 DEG C, 15~20min is incubated；
（2）Detection pH value, it is 5.6~5.8 to add formic acid solution regulation pH value, adds first time industrial urea（U1）, continue to rise
Temperature is incubated 15~30min to 85~90 DEG C；
（3）Detection reactive polymeric degree, -4 glasss are applied when reaching（25℃）When viscosity is 14~16s, soda bath regulation is added immediately
PH value be 6.6~6.8 after, add second industrial urea（U2）And second melamine（M2）, insulation 25~
30min；
（4）Add third time industrial urea（U3）And reinforcing agent, and it is incubated 20~30min in 75~80 DEG C；
（5）40 DEG C are cooled to, pH=7.5~8.0 blowing is adjusted with soda bath, it is standby.
Further, in preparation process raw material successively in weak acidic medium pH=5.0~6.0, faint acid to neutral medium
Reacted in pH=6.5~7.0, weak alkaline medium pH=7.5~8.5；In step（2）、（3）With（4）In, the first time,
Secondary, third time industrial urea addition is respectively：U1=180、U2=100、U3=120；In step（1）With（3）In, described
Once, second melamine addition is respectively：M1=8.4、M2=19.6.
The modified adhesive quality index prepared according to embodiment 4 is as shown in table 8：
Table 8
The modified adhesive of above-described embodiment 1-4 is used to produce E1/E0 grades of environmentally friendly consolidated floor base material, is performed such as during its production
Lower technique：
Resin added presses 190~220 ㎏/m3, and solid paraffin amount presses 6.0~8.0 ㎏/m3, and ammonium sulfate curing agent is by the 1.5 of dry glue amount
~2.5% grade applies, and on continuous press line, press speed is 250~290mm/s, and 5 area's hot pressing temperatures are respectively：
220~225,230~235,225~210,205~195,180~175.By GB/T17657-2009《Wood-based plate and rennerer
Make foliation performance test method》, the consolidated floor base material properties to being prepared according to embodiment of the present invention 1-4 carry out
Detection, burst size of methanal detects that testing result is as shown in table 9 with perforation method.
Table 9
From the experimental data of table 9 it is recognised that producing environmentally friendly consolidated floor base material using modified adhesive of the invention, its trip
European E0 grades of standard is reached from burst size of methanal（≤ 5.0mg/100g), far below GB GB 18580-2001《Interior decoration is filled
Repair Form aldehyde release limitation in material wood-based plate and its product》E1 grades（≤9.0mg/100g)）, its physical and mechanical property reaches row
Industry standard LY/T 1611-2011《Floor base material fiberboard》Regulation requirement, realizes floor base material high intensity, size high steady
Qualitative and environmental protection characteristic.
To sum up, it is experimentally confirmed, being directed to traditional alkali-acid-alkali technique using modified adhesive of the invention prepares
The defect problem of consolidated floor base material Lauxite, innovative development is mixed as modifying agent using pregnancy urotropine and ammonium salt, with
Used as reinforcing agent, wherein pregnancy urotropine and ammonium salt are mixed reinforcing agent with arbitrary proportion, and course of reaction industrial urea is in three times
Feed intake, melamine feeds intake twice, remaining raw material once feeds intake, make raw material successively in weak acid, faint acid to neutral, weak caustic solution
The new technology synthetic method of middle reaction is made.Modified adhesive of the invention has that the few low cost of consumption, bonding strength be high, solidification
Time is short, synthesis reaction period is short and the low remarkable advantage of free formaldehyde.Using modified adhesive production enhancement ground of the invention
Plate base material, it has, and bonding strength is high, waterproof water-tolerant, and low cost and burst size of methanal are up to E1/EO grades of Europe and Japan F ★
The advantages such as the environmental protection standard that ★ grades of ★ ★.And it is less demanding to equipment, manufacturing condition, artificial board enterprise glue department need not
Increase equipment and be capable of achieving the manufacturing.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, although this
Specification is been described by according to embodiment, but not each implementation method only includes an independent technical scheme, specification
This narrating mode is only that for clarity, those skilled in the art should be using specification an as entirety, without the back of the body
In the case of spirit or essential attributes of the invention, can with it will be appreciated by those skilled in the art that other concrete forms
Realize the present invention.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be it is nonrestrictive,
The scope of the present invention is limited by appended claims rather than described above.
Claims (8)
1. a kind of consolidated floor base material is manufactured with modified adhesive, it is characterised in that be made up of the raw material of following weight portion：Industry
51.0~55.0 parts of formaldehyde, 36.0~40.0 parts of industrial urea, 2.0~2.9 parts of melamine, 0.2~0.49 part of modifying agent, increasing
Strong 1.6~2.0 parts of agent；The mass concentration of the industrial formol is 37%.
2. consolidated floor base material according to claim 1 is manufactured with modified adhesive, it is characterised in that by following weight portion
Raw material be made：53.0 parts of industrial formol, 38.0 parts of industrial urea, 2.5 parts of melamine, 0.33 part of modifying agent, reinforcing agent 1.8
Part；The mass concentration of the industrial formol is 37%.
3. consolidated floor base material according to claim 1 and 2 is manufactured with modified adhesive, it is characterised in that：It is described modified
Agent is the mixture of pregnancy urotropine and ammonium salt；
The reinforcing agent is oxidized starch.
4. consolidated floor base material according to claim 3 is manufactured with modified adhesive, it is characterised in that：The hexamethyl four
Amine and ammonium salt are mixed with any part by weight.
5. consolidated floor base material according to claim 4 manufactures the preparation method with modified adhesive, it is characterised in that bag
Include following processing step：
（1）In a kettle., input industrial formol, modifying agent and first time melamine, start agitator, and agitating heating heats up
To 45~65 DEG C, 10~30min is incubated；
（2）Detection pH value, it is 5.0~6.0 to add formic acid solution regulation pH value, adds first time industrial urea, is continuously heating to
80~90 DEG C, it is incubated 10~30min；
（3）Detection reactive polymeric degree, when it is 13~16s to reach -4 glasss of viscosity of painting, the pH value of addition soda bath regulation immediately is
After 6.5~7.0, second industrial urea and second melamine are added, be incubated 20~40min；
（4）Third time industrial urea and reinforcing agent are added, and 10~30min is incubated in 75~80 DEG C；
（5）40 DEG C are cooled to, pH=7.5~8.5 blowing is adjusted with soda bath, it is standby.
6. consolidated floor base material according to claim 5 manufactures the preparation method with modified adhesive, it is characterised in that：System
Raw material is successively in weak acidic medium pH=5.0~6.0, faint acid to neutral medium pH=6.5~7.0, alkalescent during standby
Reacted in medium pH=7.5~8.5.
7. consolidated floor base material according to claim 5 manufactures the preparation method with modified adhesive, it is characterised in that：
Step（2）、（3）With（4）In, the first time, second, third time industrial urea addition are respectively industrial urea total amount
's：40~45%, 20~25%, 30~40%.
8. consolidated floor base material according to claim 5 manufactures the preparation method with modified adhesive, it is characterised in that：
Step（1）With（3）In, the first time, second melamine addition are respectively melamine total amount：10~30%, 70
~90%.
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| CN201710253860.XA CN106883798A (en) | 2017-04-18 | 2017-04-18 | The consolidated floor base material manufacture adhesive that is modified |
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| CN110724485A (en) * | 2019-11-06 | 2020-01-24 | 徐州盛安化工科技有限公司 | Urea-formaldehyde resin adhesive and preparation method thereof |
| CN111363505A (en) * | 2020-04-22 | 2020-07-03 | 广西丰林木业集团股份有限公司 | Modified urea-formaldehyde resin adhesive for moisture-proof shaving board and preparation method thereof |
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| CN104086730A (en) * | 2014-07-28 | 2014-10-08 | 广西大学 | Two-step method for preparing modified urea-formaldehyde glue for environment-friendly artificial board |
| CN104497937A (en) * | 2014-11-28 | 2015-04-08 | 广西丰林木业集团股份有限公司 | Low-molar ratio modified adhesive for laminate flooring base material and preparation method thereof |
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Application publication date: 20170623 |