CN108943308A - A kind of environment-protective adhesive and preparation method thereof can be used for beaver board - Google Patents
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board Download PDFInfo
- Publication number
- CN108943308A CN108943308A CN201710386053.5A CN201710386053A CN108943308A CN 108943308 A CN108943308 A CN 108943308A CN 201710386053 A CN201710386053 A CN 201710386053A CN 108943308 A CN108943308 A CN 108943308A
- Authority
- CN
- China
- Prior art keywords
- fiber
- soybean
- hot
- temperature
- modified
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
-
- 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
- C09J11/08—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
- C09J189/00—Adhesives based on proteins; Adhesives based on derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a kind of environmentally friendly Formaldehyde-free adhesives and its manufacturing method that can be used for beaver board.This method, which is used, to be sticked agent, waterproofing agent, emulsifier, coupling agent for function modified soybean protein macromolecular, Isocyanate resin and combines according to certain proportion, carries out sizing processing to the fiber during dynamic agitation by the way of mixing using binary channels spraying applications and with fiber aromatic radical modified soy-bean protein macromolecular.Fiber after sizing needs directly to dry by hot-air drying device in whipping process, so that fiber moisture is maintained at 8%-10%.Then, by fiber after sizing under pressure (2-100Mpa) and temperature action (30-300 DEG C) progress precompressed, squeeze time 10s-1000s.Fiberboard is subjected to hot-pressing processing, hot pressing temperature is (30-300 DEG C), and pressure is (1-100Mpa), hot pressing time 10s-1000s.Available with a thickness of 8-50mm after high temperature and high pressure is handled, density is 0.1-0.9 g/cm3, and boiling water bath expansion rate of water absorption is 5-10% within 5 minutes, and fiberboard internal bond strength has reached the plate of 1.1-2.0MPa or more.
Description
Technical field
The present invention relates to a kind of environment-protective adhesives and preparation method thereof that can be used for beaver board, more particularly to one kind
The manufacturing method of environment-protective adhesive, the beaver board can be applied in office and building field, such as office furniture, wood floors
And some solid woods is replaced to build consumptive material.
Background technique
In China due to forest reserves scarcity, a large amount of wood-based plate is needed to meet consumer demand, from reform and opening-up
Afterwards, wood-based plate especially beaver board is quickly grown, but up to the present main still using three-aldehyde glue, melamine first
Urea formaldehyde, phenolic resin, Lauxite.Three-aldehyde glue gradually starts since meeting release formaldehyde influences human health by environmentally friendly gluing
Agent is substituted, and current main developing direction is MDI adhesive and rubber made from soybean cake, but current MDI adhesive is on the high side, far
Much higher than common three-aldehyde glue, the development of rubber made from soybean cake is since at the early-stage thus there is also many disadvantages, mainly intensity and suction
Water expansion rate.Although can improve by modified, many modified method costs are too high at present, and practicability is too poor.Main collection
In graft modification is being carried out to soybean protein, enzyme modification, crosslinking agent is modified, but cost is generally higher, lacks practicability.
The invention patent proposes a kind of environment-protective adhesive and preparation method thereof that can be used for beaver board, by big
Bean gum is modified introducing aromatic structure, modified soybean glue is effectively combined with MDI adhesive together with, and make
It obtains and macromolecular rigid chain is collectively formed by the group in the reaction and fiber under high temperature and pressure.So that fiberboard intensity and resistance to
The aqueous cost for all greatly improving and reducing product while formaldehyde will not be generated, realize the low cost production of formaldehyde-less fiber board
Adhesive.
Summary of the invention
The main purpose of the invention patent is to overcome the low cost of formaldehyde-less fiber board adhesive in the prior art and strong
Degree and the aspect contents of water resistance three provide a kind of low production cost, the novel nothing that mechanical strength is high and water resistance is good
Aldehyde fiberboard and preparation method thereof.
Existing non-formaldehyde beaver board has the experience applied in fields such as furniture, wood floors, building materials, but it is produced into
This is relatively higher, it is suppressed that the development of formaldehyde-less fiber board.Although currently, being modified by rubber made from soybean cake to improve its water resistance and intensity
It can achieve required effect, but modified cost is too high, intensity still differs greatly compared to MDI adhesive.And it is of the invention
A kind of environment-protective adhesive and preparation method thereof that can be used for beaver board of proposition, can substantially reduce the production of formaldehyde-less fiber board
Cost meets industrial technical requirements, and simple process and low cost, there are no this manufacturing methods both at home and abroad at present
Report.
The principle of the invention lies in by being modified so that the group on rubber made from soybean cake is sufficiently exposed, in the amino of rubber made from soybean cake
Aromatic structure and other long-chain-segments containing unsaturated bond are introduced on group, these groups are oxidized simultaneously and isocyanide at high temperature under high pressure
On acid esters-NCO group reaction be interweaved into network structure, there are benzene ring structure, these benzene ring structures in the structure being introduced into
Both it can increase the toughness of adhesive simultaneously because space steric effect mutual on different phenyl ring influences, so that mutual
Network structure is less prone to sliding to there is higher intensity, while water resistance is got a promotion.
The purpose of the present invention is achieved through the following technical solutions:
A kind of environment-protective adhesive can be used for beaver board and its manufacturing method, include the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the dregs of beans powder after degreasing being dissolved in the alkaline solution that concentration is 3%-30%, addition accounts for
The functional modifier (0.1-10%) and alkali lignin (0.1-10%) of dregs of beans absolute dry mass, mixed liquor is adjusted with acid after mixing evenly
The pH value of solution adds preservative, filler and waterproofing agent to 3-6, and additional proportion is all in 0.01%-10%;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 100 DEG C -300
℃;
(3) preparation of modified Formaldehyde-free adhesive: modified soybean glue prepared by step (2) sticks agent with Isocyanate resin
And coupling agent, emulsifier according to solid masses ratio are (10-40%), (40-90%), (0.05-1%), (0.01-1%) ratio are mixed
It closes, the emulsification of progress high speed is as modified Formaldehyde-free adhesive after suitable quantity of water is added;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive that over dry wood fiber raw material percentage is 2.0-8.0%
The sizing of air-flow mixed at high speed is carried out with wood-fibred, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, applied amount
Accounting for over dry wood fiber raw material percentage is 2.0-8.0%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 90 DEG C -120 DEG C, and the fiber moisture after drying is controlled in 8%-10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is (30-
300 DEG C), pressure is (1-10Mpa), hot pressing time 10s-1000s;
(7) the fiberboard merging vulcanizing press after precompressed fiberboard pressing plate: is subjected to hot-pressing processing, temperature 30-300
DEG C, pressure 10-30Mpa, time 1-60min.
Compared with the prior art, the invention has the following advantages:
1. a kind of environment-protective adhesive and preparation method thereof that can be used for beaver board of the invention has simple process, cost
It is low, intensity is high, the advantages that water-tolerant, formaldehydeless release;
2. with a thickness of 8-10mm, higher strength character (internal bond strength 1.1-2.0MPa, elasticity modulus 2600-2850MPa,
Static bending strength 27-30MPa), preferable water resistance (5min boiling water bath expansion rate 5%-10%)；
It has excellent performance 3. the technical method has compared to traditional formaldehyde-less fiber board manufacturing technology, is environmental-friendly and at low cost etc.
The comprehensive performance of feature, product is better than medium density fibre board (MDF) standard GB/T 11718-2009;
Detailed description of the invention:
Fig. 1 is the size applicator figure that wood-based plate is prepared using environmentally friendly Formaldehyde-free adhesive.
Fig. 1: 1- high pressure gas；2- pressure gauge；3- flowmeter；4- soybean rubber powder storage tank；5- Resin adhesive, coupling agent,
Emulsifier storage tank；6- pressure gauge；7- mixer；8- pressure gauge；9- flowmeter；10- sprays tube inlet；The upper prefabricating plate of 11-；
Prefabricating plate under 12-；13- condensate outlet；14- plate blank molding area.
Specific embodiment
In order to more deeply understand the present invention, below with reference to embodiment, the present invention is further illustrated, needs to illustrate
, the scope of protection of present invention is not limited to the scope of the embodiments.
In following example, internal bond strength and static bending strength test use ISO7500-1 country testing standard, springform
Measurement uses ISO9513 national standard to test；The water temperature that 5min boiling water bath uses is 100 DEG C.
Embodiment 1
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing is dissolved in the ammonium hydroxide or hydrogen that concentration is 3%-30%
In sodium oxide molybdena or calcium hydroxide solution, the functional modifier polyalkyl acrylate and 2% for accounting for dregs of beans absolute dry mass 1% is added
Alkali lignin uses mixed liquor the pH value of nitre acid-conditioning solution to 5 after mixing evenly, and add 0.03% potassium sorbate preservative,
2% filler nanometer calcium carbonate and 3% waterproofing agent chlorinated paraffin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 120 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed emulsification after suitable quantity of water is added in adhesive and 1% coupling agent KH550,0.5% emulsifier octyl phenol polyoxyethylene ether
As modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 4.0%
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 2%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 120 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 30s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 160 DEG C,
Pressure is 3Mpa, time 4min.
Series of processes processing by above-mentioned steps, the mutual gap of plant fiber is filled, mutually viscous between fiber
It is connected together, structure is changed into the high strength fiberboard of compact structure by porous open structure, and surface is smooth and whole matter
Sense is strong.The bonding effect of adhesive makes fiberboard have good intensity under the hydrogen bond and high temperature and pressure that are formed between fiber
Performance and water resistance, cost are greatly reduced；
| Specification | Density (kg/m3) | IB(internal bond strength) (Mpa) | Five minutes boiling water bath expansion rate of water absorption (%) | Static bending strength (Mpa) | Elasticity modulus (Mpa) |
| 1 | 698 | 1.10 | 7.5% | 37 | 3607 |
| 2 | 701 | 1.06 | 7.3% | 38 | 3634 |
And the various indexs of plate are tested, as a result table as above.
Example 2
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing is dissolved in the calcium hydroxide solution that concentration is 4%,
The alkali lignin of the functional modifier polyalkyl acrylate and 5% that account for dregs of beans absolute dry mass 1% is added, after mixing evenly by mixed liquor
With the pH value of citric acid regulating solution to 6, and add 0.5% preservative sorbic acid, 3% filler montmorillonite and 3% waterproofing agent
Rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 100 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 40% isocyanate resin
Progress high speed emulsification after suitable quantity of water is added in adhesive and 1% coupling agent KH560,0.5% emulsifier octyl phenol polyoxyethylene ether
As modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 5%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 3Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 200 DEG C,
Pressure is 4Mpa, time 10min.
Example 3
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing is dissolved in the calcium hydroxide solution that concentration is 3%,
The alkali lignin of the functional modifier polyalkyl acrylate and 10% that account for dregs of beans absolute dry mass 0.5% is added, mixed liquor is stirred equal
With the pH value of citric acid regulating solution to 6 after even, and add 0.5% preservative sorbic acid, 3% filler montmorillonite and 3% it is anti-
Aqua rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 120 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed cream after suitable quantity of water is added in adhesive and 0.5% coupling agent KH550,0.5% emulsifier octyl phenol polyoxyethylene ether
It is turned to modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 4%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 200 DEG C,
Pressure is 4Mpa, time 12min.
Example 4
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing is dissolved in the sodium hydroxide solution that concentration is 4%,
The alkali lignin of the functional modifier polyalkyl acrylate and 15% that account for dregs of beans absolute dry mass 0.3% is added, mixed liquor is stirred equal
With the pH value of citric acid regulating solution to 6 after even, and add 0.5% preservative sorbic acid, 3% filler montmorillonite and 3% it is anti-
Aqua rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 120 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed cream after suitable quantity of water is added in adhesive and 0.5% coupling agent KH550,0.5% emulsifier octyl phenol polyoxyethylene ether
It is turned to modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 4%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 200 DEG C,
Pressure is 4Mpa, time 12min.
Example 5
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing being dissolved in the ammonia spirit that concentration is 4%, is added
The functional modifier polyalkyl acrylate of dregs of beans absolute dry mass 0.1% and 15% alkali lignin are accounted for, after mixing evenly by mixed liquor
With the pH value of citric acid regulating solution to 5, and add 0.5% preservative sorbic acid, 3% filler kaolin and 1% waterproofing agent
Rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 110 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed cream after suitable quantity of water is added in adhesive and 0.3% coupling agent KH560,0.5% emulsifier octyl phenol polyoxyethylene ether
It is turned to modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 4%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 205 DEG C,
Pressure is 3Mpa, time 5min.
Example 6
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing being dissolved in the ammonia spirit that concentration is 2%, is added
The functional modifier polyalkyl acrylate of dregs of beans absolute dry mass 0.1% and 15% alkali lignin are accounted for, after mixing evenly by mixed liquor
With the pH value of citric acid regulating solution to 5, and add 0.5% preservative sorbic acid, 3% filler kaolin and 1% waterproofing agent
Rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 110 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed cream after suitable quantity of water is added in adhesive and 0.3% coupling agent KH560,0.5% emulsifier octyl phenol polyoxyethylene ether
It is turned to modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 4%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 205 DEG C,
Pressure is 2Mpa, time 5min.
Example 7
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing being dissolved in the ammonia spirit that concentration is 10%, is added
Enter to account for the functional modifier polyalkyl acrylate of dregs of beans absolute dry mass 0.1% and 4% alkali lignin, after mixing evenly by mixed liquor
With the pH value of citric acid regulating solution to 6, and add 0.3% preservative sorbic acid, 3% filler kaolin and 1% waterproofing agent
Rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 110 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed cream after suitable quantity of water is added in adhesive and 0.3% coupling agent KH560,0.5% emulsifier octyl phenol polyoxyethylene ether
It is turned to modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 4%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 205 DEG C,
Pressure is 2Mpa, time 5min.
Example 8
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing is dissolved in the sodium hydroxide solution that concentration is 10%
In, the alkali lignin of the functional modifier polyalkyl acrylate and 3% that account for dregs of beans absolute dry mass 0.2% is added, mixed liquor is stirred
After uniformly with the pH value of citric acid regulating solution to 6, and add 0.3% preservative sorbic acid, 3% filler kaolin and 1%
Waterproofing agent rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 110 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed cream after suitable quantity of water is added in adhesive and 0.3% coupling agent KH560,0.5% emulsifier octyl phenol polyoxyethylene ether
It is turned to modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 4%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 205 DEG C,
Pressure is 2Mpa, time 5min.
Example 9
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing is dissolved in the calcium hydroxide solution that concentration is 10%
In, the alkali lignin of the functional modifier polyalkyl acrylate and 3% that account for dregs of beans absolute dry mass 0.2% is added, mixed liquor is stirred
After uniformly with the pH value of citric acid regulating solution to 6, and add 0.3% preservative sorbic acid, 3% filler kaolin and 1%
Waterproofing agent rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 110 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed cream after suitable quantity of water is added in adhesive and 0.3% coupling agent KH560,0.5% emulsifier octyl phenol polyoxyethylene ether
It is turned to modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 4%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 205 DEG C,
Pressure is 2Mpa, time 3min.
Example 10
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing is dissolved in the calcium hydroxide solution that concentration is 10%
In, the alkali lignin of the functional modifier unsaturated polyester (UP) and 13% that account for dregs of beans absolute dry mass 0.3% is added, mixed liquor is stirred evenly
Afterwards with the pH value of citric acid regulating solution to 6, and add 0.3% preservative sorbic acid, 3% filler kaolin and 1% waterproof
Agent rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 110 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed cream after suitable quantity of water is added in adhesive and 0.3% coupling agent KH560,0.5% emulsifier octyl phenol polyoxyethylene ether
It is turned to modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 4%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 205 DEG C,
Pressure is 2Mpa, time 3min.
Example 11
A kind of environment-protective adhesive and preparation method thereof can be used for beaver board, includes the following steps and process conditions:
(1) rubber made from soybean cake is function modified: the transgenosis dregs of beans powder after degreasing is dissolved in the calcium hydroxide solution that concentration is 20%
In, the alkali lignin of the functional modifier unsaturated polyester (UP) and 13% that account for dregs of beans absolute dry mass 0.3% is added, mixed liquor is stirred evenly
Afterwards with the pH value of citric acid regulating solution to 6, and add 0.3% preservative sorbic acid, 3% filler kaolin and 1% waterproof
Agent rosin;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 110 DEG C;
(3) preparation of modified Formaldehyde-free adhesive: 40% modified soybean glue prepared by step (2), with 30% isocyanate resin
Progress high speed cream after suitable quantity of water is added in adhesive and 0.3% coupling agent KH560,0.5% emulsifier octyl phenol polyoxyethylene ether
It is turned to modified Formaldehyde-free adhesive;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive and wood that over dry wood fiber raw material percentage is 3. %
Fiber carries out the sizing of air-flow mixed at high speed, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, and applied amount accounts for absolutely
Dry wood fiber raw material percentage is 4%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 100 DEG C, and the fiber moisture after drying is controlled 10%;
(6) precompressed processing fibreboard prepressing: is carried out under plate strong pressure and temperature action in order to improve.Hot pressing temperature is 100 DEG C,
Pressure is 2Mpa, hot pressing time 100s;
(7) fiberboard pressing plate: carrying out hot-pressing processing for the fiberboard merging vulcanizing press after precompressed, and temperature is 205 DEG C,
Pressure is 2Mpa, time 4min.
Claims (6)
1. a kind of environmentally friendly Formaldehyde-free adhesive that can be used for beaver board and its application method, it is characterised in that including walking as follows
Rapid and process conditions:
(1) rubber made from soybean cake is function modified: the dregs of beans powder after degreasing being dissolved in the alkaline solution that concentration is 3%-30%, addition accounts for
The functional modifier (0.1-10%) and alkali lignin (0.1-10%) of dregs of beans absolute dry mass, mixed liquor is adjusted with acid after mixing evenly
The pH value of solution adds preservative, filler and waterproofing agent to 3-6, and additional proportion is all in 0.01%-10%;
(2) preparation of soybean rubber powder: soybean sol solution of the step (1) after function modified is passed through into spray dryer, passes through control
Vapo(u)rizing temperature and spraying aperture prepare the modified soybean rubber powder having a size of 200nm-500nm, and drying temperature is 100 DEG C -300
℃;
(3) preparation of modified Formaldehyde-free adhesive: modified soybean glue prepared by step (2) sticks agent with Isocyanate resin
And coupling agent, emulsifier according to solid masses ratio are (10-40%), (40-90%), (0.05-1%), (0.01-1%) ratio are mixed
It closes, the emulsification of progress high speed is as modified Formaldehyde-free adhesive after suitable quantity of water is added;
(4) solid content the sizing of fiber: is accounted for into the modification Formaldehyde-free adhesive that over dry wood fiber raw material percentage is 2.0-8.0%
The sizing of air-flow mixed at high speed is carried out with wood-fibred, while carrying out air-flow high speed in another sizing mouth and applying soybean rubber powder, applied amount
Accounting for over dry wood fiber raw material percentage is 2.0-8.0%;
(5) drying of fiber: the fiber in step (4) by sizing is directlyed adopt into hot-air drying device, hot wind is carried out to fiber
Dry, hot blast temperature is 90 DEG C -120 DEG C, and the fiber moisture after drying is controlled in 8%-10%;
(6) fibreboard prepressing: precompressed processing is carried out under plate strong pressure and temperature action in order to improve, hot pressing temperature is (30-
300 DEG C), pressure is (1-10Mpa), hot pressing time 10s-1000s;
(7) the fiberboard merging vulcanizing press after precompressed fiberboard pressing plate: is subjected to hot-pressing processing, temperature 30-300
DEG C, pressure 10-30Mpa, time 1-60min.
2. a kind of environmentally friendly Formaldehyde-free adhesive that can be used for beaver board according to claim 1 and its application method,
It is characterized in that used wood fiber raw material includes needlebush, leaf wood and non-wood-fiber (such as stalk, bagasse).
3. a kind of environmentally friendly Formaldehyde-free adhesive that can be used for beaver board according to claim 1 and its application method,
It is characterized in that the dregs of beans powder after degreasing is that perhaps Non-transgenic soybean alkaline solution is ammonium hydroxide or hydrogen-oxygen to genetically engineered soybean
Change sodium or calcium hydroxide;Waterproofing agent is chlorinated paraffin or rosin or paraffin wax emulsions or alkyl ketene dimer (AKD)
Or wherein several mixing;Filler is nanometer calcium carbonate or kaolin or montmorillonite or wherein several mixing;PH is adjusted
Agent is hydrochloric acid or citric acid or nitric acid;Preservative is sodium benzoate or sorbic acid or potassium sorbate or several mixed
It closes;Functional modifier is that polyalkyl acrylate or unsaturated polyester (UP), polyacrylamide are one such.
4. a kind of environmentally friendly Formaldehyde-free adhesive that can be used for beaver board according to claim 1 and its application method,
It is characterized in that the MDI adhesive being added in adhesive be solvent type polymethylene polyphenyl isocyanates gluing agent (PMDI) or
Water-soluble isocyanates gluing agent (EMDI).
5. a kind of environmentally friendly Formaldehyde-free adhesive that can be used for beaver board according to claim 1 and its application method,
It is characterized in that the coupling agent being added in adhesive is silane coupling agent KH560, silane coupling agent KH792, silane coupling agent
The one of which of KH550.
6. a kind of environmentally friendly Formaldehyde-free adhesive that can be used for beaver board according to claim 1 and its application method,
It is characterized in that the emulsifier being added in adhesive is octyl phenol polyoxyethylene ether emulsifier, alkyl phenol polyoxyethylene ether emulsification
Agent, polyethenoxy ether emulsifier one of which.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386053.5A CN108943308A (en) | 2017-05-26 | 2017-05-26 | A kind of environment-protective adhesive and preparation method thereof can be used for beaver board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386053.5A CN108943308A (en) | 2017-05-26 | 2017-05-26 | A kind of environment-protective adhesive and preparation method thereof can be used for beaver board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108943308A true CN108943308A (en) | 2018-12-07 |
Family
ID=64494739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710386053.5A Pending CN108943308A (en) | 2017-05-26 | 2017-05-26 | A kind of environment-protective adhesive and preparation method thereof can be used for beaver board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108943308A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079270A (en) * | 2019-05-13 | 2019-08-02 | 北京林业大学 | A kind of fibre modification soybean protein base adhesive of wood-based plate and preparation method thereof |
| CN110405896A (en) * | 2019-06-28 | 2019-11-05 | 千年舟新材科技集团有限公司 | Without aldehyde is fire-retardant can facing particieboard and its preparation process and application |
| CN111171783A (en) * | 2020-01-20 | 2020-05-19 | 北京林业大学 | Modified wood fiber reinforced plant protein adhesive and preparation method and application thereof |
| CN111303811A (en) * | 2020-04-07 | 2020-06-19 | 广州市长安粘胶制造有限公司 | Preparation method of waterproof soybean gum |
-
2017
- 2017-05-26 CN CN201710386053.5A patent/CN108943308A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079270A (en) * | 2019-05-13 | 2019-08-02 | 北京林业大学 | A kind of fibre modification soybean protein base adhesive of wood-based plate and preparation method thereof |
| CN110079270B (en) * | 2019-05-13 | 2021-01-26 | 北京林业大学 | Fiber modified soybean protein-based adhesive for artificial board and preparation method thereof |
| CN110405896A (en) * | 2019-06-28 | 2019-11-05 | 千年舟新材科技集团有限公司 | Without aldehyde is fire-retardant can facing particieboard and its preparation process and application |
| CN111171783A (en) * | 2020-01-20 | 2020-05-19 | 北京林业大学 | Modified wood fiber reinforced plant protein adhesive and preparation method and application thereof |
| CN111303811A (en) * | 2020-04-07 | 2020-06-19 | 广州市长安粘胶制造有限公司 | Preparation method of waterproof soybean gum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108943308A (en) | A kind of environment-protective adhesive and preparation method thereof can be used for beaver board | |
| CN100558520C (en) | The bamboo fiberboard preparation method of modified soy protein adhesive | |
| CN104479596B (en) | Water-based environment-friendly plate splicing adhesive and preparation method thereof | |
| CN102086361B (en) | High-efficiency extender for environmentally-friendly urea formaldehyde resin, and preparation and use thereof | |
| CN104962227B (en) | A kind of full biomass based Wood Adhesives and preparation method and application | |
| CN101724376B (en) | Wood adhesive prepared by degrading soybean protein by utilizing strong basicity and preparation method thereof | |
| CN104059598A (en) | Method for manufacturing soybean protein modified adhesive formaldehyde-free medium-density fiberboard | |
| CN105128117A (en) | Sun-protection high-density fiberboard based on ultraviolet shielding agent and preparation method of sun-protection high-density fiberboard | |
| CN111171783B (en) | Modified wood fiber reinforced plant protein adhesive and preparation method and application thereof | |
| CN107471391A (en) | A kind of timber composite adhesive, without aldehyde particieboard and its manufacture method | |
| CN109181612A (en) | A kind of water resistance biology base adhesive and preparation method thereof | |
| CN1250464A (en) | Lignin-based adhesives and a process for the preparation thereof | |
| CN105583935B (en) | A kind of method that environment protecting fiber board is prepared based on chitosan blend lignin | |
| CN108084958A (en) | A kind of preparation based on first glutinous agent modified double components dregs of beans adhesive and its application on type Ⅰ plywood | |
| CN104290168B (en) | The preparation method of aqueous polyurethane heat cure composite fiber plate | |
| CN113861936B (en) | Non-adhesive vegetable protein sucrose-based environment-friendly adhesive for plywood and preparation method and application thereof | |
| CN102504736A (en) | Phenolic resin composite filling agent for solid-wood composite floor and phenolic resin adhesive comprising same | |
| CN106753063B (en) | The preparation method of water resistance wheat flour adhesive | |
| CN111171256B (en) | Modified isocyanate emulsion cross-linking agent, modified adhesive and application | |
| CN102658578B (en) | Method for manufacturing fiberboard by using laccase-activated lignosulfonate | |
| CN109096783A (en) | A kind of environment-friendly modified isocyanate resin water-based emulsion and its manufacturing method | |
| CN103320081B (en) | High-molecular composite adhesive, and preparation method and application thereof | |
| CN106634688B (en) | A kind of thermosetting property oxidation modification Cassava starch adhesive and preparation method thereof | |
| CN109852305A (en) | A kind of method of urea-formaldehyde resin adhesive scrap rubber liquid resource utilization | |
| CN109181610A (en) | It is a kind of for bonding wood materials low cost without the agent of aldehyde environmental-friendly adhesion and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181207 |