CN106047218B - A kind of timber environment-protective adhesive - Google Patents
A kind of timber environment-protective adhesive Download PDFInfo
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- CN106047218B CN106047218B CN201610702412.9A CN201610702412A CN106047218B CN 106047218 B CN106047218 B CN 106047218B CN 201610702412 A CN201610702412 A CN 201610702412A CN 106047218 B CN106047218 B CN 106047218B
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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
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/04—Starch derivatives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/003—Crosslinking of starch
-
- 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
- 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
Abstract
The invention discloses a kind of timber environment-protective adhesives, as unit of parts by weight, including following raw material：100 165 parts of starch from sweet potato, 10 20 parts of pentaerythritol oleate, N, 9 16 parts of N dimethylacetylamides, 25 parts of sodium hydroxide, 37 parts of epoxy chlorobutane, 25 parts of urea, 0.3 0.7 parts of coupling agent, 0.1 0.4 parts of initiator, 0.1 0.3 parts of catalyst, 0.1 0.4 parts of stabilizer, 0.5 1 parts of antifoaming agent, 0.6 1.2 parts of plasticizer, 0.5 0.9 parts of toughener, 0.4 0.8 parts of tackifier.The adhesive bonding strength of the present invention is high, water resistance is strong, complies fully with relevant criterion in GB/T14732 2006, and the Strength of Plywood produced is considerably beyond national II class wood-based plate standard.The production that can be widely applied to wood-based plate, glued board, cellulose plate, instead of the use of three formaldehyde resins.
Description
Technical field
The invention belongs to adhesive preparing technical fields, and in particular to a kind of timber environment-protective adhesive.
Background technology
Since 21st century, domestic wood-based panel industry obtains unconventional fast development, increases by 22% every year, 2009
Wood-based plate yield is more than ten thousand stere more than 8000, year consumes adhesive about 5,000,000, becomes the first big country of world's Wood-based Panel Production.
Currently, wood-based plate manufacturing uses both at home and abroad adhesive main still Lauxite, phenolic resin, melamino-formaldehyde tree
Fat etc..Free formaldehyde content is higher in the adhesive of this type, toxic formaldehyde gas is slowly released during use, to human body
It damages.In order to reduce the discharge of formaldehyde gas, on the one hand domestic Research Thinking is the skill to original synthesis Lauxite
Art route is improved, it is intended to reduce the content of free formaldehyde.Such as add urea, melamine fomol catcher；Another party
Face attempts to inexpensive biomass poly hydroxyl compound and prepares based Wood Adhesives for raw material to replace formaldehyde system adhesive.Institute
In the above-mentioned thinking of report, the cost of starch-based adhesive is relatively low, is a kind of natural poly hydroxyl compound for most having application prospect
Material.The national conditions of corrugated board packing box are widely used in conjunction with domestic starch adhesive, starch adhesive is by novel
The MOLECULE DESIGN of destructurized starch and graft copolymerization after control oxidative cleavage, crosslinking, solve adhesion strength and water resistance, for artificial
Board industry is economically feasible.Over the past two years, there is the exploratory development of part wood-based plate starch adhesive
Or patent of invention.But starch-based adhesive is used for wood-based plate from the point of view of result of study, however it remains water resistance, is consolidated adhesive strength
The problem of content and bin stability etc..Also there are many difficulties to need in terms of the technological development that wood-based plate is applied with starch adhesive
Overcome.
Invention content
The present invention provides a kind of timber environment-protective adhesive, to solve existing starch-based adhesive for wood-based plate, still deposits
Water resistance, adhesive strength, poor solid content and the bin stability the problems such as.The adhesive bonding strength height of the present invention, water resistance
By force, relevant criterion in GB/T14732-2006 is complied fully with, the Strength of Plywood produced is considerably beyond national II class wood-based plate
Standard.The production that can be widely applied to wood-based plate, glued board, cellulose plate, instead of the use of three formaldehyde resins.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of timber environment-protective adhesive, as unit of parts by weight, including following raw material：100-165 parts of starch from sweet potato, season penta
10-20 parts of tetrol oleate, 9-16 parts of n,N-dimethylacetamide, 2-5 parts of sodium hydroxide, 3-7 parts of epoxy chlorobutane, urea 2-
5 parts, 0.3-0.7 parts of coupling agent, 0.1-0.4 parts of initiator, 0.1-0.3 parts of catalyst, 0.1-0.4 parts of stabilizer, antifoaming agent
0.5-1 parts, 0.6-1.2 parts of plasticizer, 0.5-0.9 parts of toughener, 0.4-0.8 parts of tackifier；
The toughener is poly- propylene diene rubber；
The tackifier are propyl trimethoxy silicane；
The preparation method of the timber environment-protective adhesive, includes the following steps：
S1：Compound concentration is 14-22Be ', and pH values are the sweet potato starch I of 3-3.8；
S2：Pentaerythritol oleate, the N of a concentration of 1%-1.9%, N- diformazans are added into the sweet potato starch I of step S1
Then yl acetamide, coupling agent, catalyst are 45-55 DEG C in temperature, speed of agitator is to carry out cross-linked graft under 60-80r/min
3-4h is reacted, slurry II is made；
S3：Sodium hydroxide is added into the slurry II of step S2, adjusting pH values are 9.2-9.6, are subsequently added into epoxy neoprene
Then alkane, urea, initiator, plasticizer, toughener, tackifier are 56-58 DEG C in temperature, speed of agitator 50-100r/min
Slurry III is made in lower progress cross-linking reaction 1.5-2h；
S4：Stabilizer will be added in the slurry III of step S3, adjusting pH value is 7.8-8.2, is warming up to 75-79 DEG C, gelatinization
55-60min is down to 30-35 DEG C after gelatinization, antifoaming agent is added, and 10-15min is stirred in the case where rotating speed is 50-100r/min,
Timber environment-protective adhesive is made.
Further, the coupling agent is bis- (benzoyl the peroxide)-hexanes of 2,5- dimethyl -2,5-.
Further, the initiator is two isobutyric acid of azo（Acrylic acid ethylene glycol）Ester.
Further, the catalyst is platinum catalyst.
Further, the stabilizer is organic tin stabilizer.
Further, the antifoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether.
Further, the plasticizer is citrate.
The invention has the advantages that：
（1）Primary raw material used in the present invention is starch from sweet potato, belongs to biological material, price advantage is apparent, source
Extensively, environmentally protective, belong to the rational exploitation and utilization of renewable agricultural resource, the added value of agricultural product can be improved.
（2）In the process route that the adhesive of the present invention composes, any substance containing formaldehyde is not added, it is synthesized
Adhesive product free formaldehyde release reaches E0 grades of standards（≤0.5mg/L）, the discharge of formaldehyde is reduced, to no damage to human body,
Belong to environmental type adhesive.
（3）The adhesive of the present invention has solid content high（46.8%-49.9% contains standard admittedly higher than pollopas）, it is water-fast
Performance is good（75-78h）, bonding strength it is high（7.98-8.36Mpa）, hardening time it is fast（40-44s）, Storage period it is long（≥205-210
It）, reaction condition is mild, less energy consumption, it is simple for process, at low cost, equipment is simple the features such as.
（4）The adhesive bonding strength height and water resistance of the present invention is strong, complies fully with related mark in GB/T14732-2006
Standard, the Strength of Plywood produced is considerably beyond national II class wood-based plate standard.It can be widely applied to wood-based plate, glued board, fibre
The industrial flow-line production of the plain plate of dimension reduces the dependence to fossil resource instead of the use of three formaldehyde resins.
Specific implementation mode
For ease of more fully understanding the present invention, it is illustrated by the following examples, these examples belong to the protection of the present invention
Range, but do not limit the scope of the invention.
In embodiment, the timber environment-protective adhesive, as unit of parts by weight, including following raw material：Starch from sweet potato
100-165 parts, 10-20 parts of pentaerythritol oleate, 9-16 parts of n,N-dimethylacetamide, 2-5 parts of sodium hydroxide, epoxy neoprene
3-7 parts of alkane, 2-5 parts of urea, 0.3-0.7 parts of coupling agent, 0.1-0.4 parts of initiator, 0.1-0.3 parts of catalyst, stabilizer 0.1-
0.4 part, 0.5-1 parts of antifoaming agent, 0.6-1.2 parts of plasticizer, 0.5-0.9 parts of toughener, 0.4-0.8 parts of tackifier；
The coupling agent is bis- (benzoyl the peroxide)-hexanes of 2,5- dimethyl -2,5-；
The initiator is two isobutyric acid of azo（Acrylic acid ethylene glycol）Ester；
The catalyst is platinum catalyst；
The stabilizer is organic tin stabilizer；
The antifoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether；
The plasticizer is citrate；
The toughener is poly- propylene diene rubber；
The tackifier are propyl trimethoxy silicane；
The preparation method of the timber environment-protective adhesive, includes the following steps：
S1：Compound concentration is 14-22Be ', and pH values are the sweet potato starch I of 3-3.8；
S2：Pentaerythritol oleate, the N of a concentration of 1%-1.9%, N- diformazans are added into the sweet potato starch I of step S1
Then yl acetamide, coupling agent, catalyst are 45-55 DEG C in temperature, speed of agitator is to carry out cross-linked graft under 60-80r/min
3-4h is reacted, slurry II is made；
S3：Sodium hydroxide is added into the slurry II of step S2, adjusting pH values are 9.2-9.6, are subsequently added into epoxy neoprene
Then alkane, urea, initiator, plasticizer, toughener, tackifier are 56-58 DEG C in temperature, speed of agitator 50-100r/min
Slurry III is made in lower progress cross-linking reaction 1.5-2h；
S4：Stabilizer will be added in the slurry III of step S3, adjusting pH value is 7.8-8.2, is warming up to 75-79 DEG C, gelatinization
55-60min is down to 30-35 DEG C after gelatinization, antifoaming agent is added, and 10-15min is stirred in the case where rotating speed is 50-100r/min,
Timber environment-protective adhesive is made.
Below by more specifically examples illustrate the present invention.
Embodiment 1
A kind of timber environment-protective adhesive, as unit of parts by weight, including following raw material：132 parts of starch from sweet potato, pentaerythrite
15 parts of oleate, 13 parts of n,N-dimethylacetamide, 4 parts of sodium hydroxide, 5 parts of epoxy chlorobutane, 4 parts of urea, coupling agent 0.5
Part, increases 0.3 part of initiator, 0.2 part of catalyst, 0.3 part of stabilizer, 0.8 part of antifoaming agent, 0.9 part of plasticizer, 0.8 part of toughener
0.6 part of stick；
The coupling agent is bis- (benzoyl the peroxide)-hexanes of 2,5- dimethyl -2,5-；
The initiator is two isobutyric acid of azo（Acrylic acid ethylene glycol）Ester；
The catalyst is platinum catalyst；
The stabilizer is organic tin stabilizer；
The antifoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether；
The plasticizer is citrate；
The toughener is poly- propylene diene rubber；
The tackifier are propyl trimethoxy silicane；
The preparation method of the timber environment-protective adhesive, includes the following steps：
S1：Compound concentration is 18Be ', the sweet potato starch I that pH values are 3.4；
S2：A concentration of 1.5% pentaerythritol oleate, N, N- dimethyl second are added into the sweet potato starch I of step S1
Then amide, coupling agent, catalyst are 50 DEG C in temperature, speed of agitator is to carry out cross-linked graft under 70r/min to react 3.5h,
Slurry II is made；
S3：Be added sodium hydroxide into the slurry II of step S2, it is 9.4 to adjust pH values, be subsequently added into epoxy chlorobutane,
Then urea, initiator, plasticizer, toughener, tackifier are 57 DEG C in temperature, speed of agitator is to be crosslinked under 80r/min
1.8h is reacted, slurry III is made；
S4：Stabilizer will be added in the slurry III of step S3, it is 8 to adjust pH value, is warming up to 78 DEG C, is gelatinized 58min, gelatinization
After be down to 32 DEG C, antifoaming agent is added, stirs 12min in the case where rotating speed is 80r/min, timber environment-protective adhesive is made.
Embodiment 2
A kind of timber environment-protective adhesive, as unit of parts by weight, including following raw material：100 parts of starch from sweet potato, pentaerythrite
10 parts of oleate, 9 parts of n,N-dimethylacetamide, 2 parts of sodium hydroxide, 3 parts of epoxy chlorobutane, 2 parts of urea, 0.3 part of coupling agent,
0.1 part of initiator, 0.1 part of catalyst, 0.1 part of stabilizer, 0.5 part of antifoaming agent, 0.6 part of plasticizer, 0.5 part of toughener, thickening
0.4 part of agent；
The coupling agent is bis- (benzoyl the peroxide)-hexanes of 2,5- dimethyl -2,5-；
The initiator is two isobutyric acid of azo（Acrylic acid ethylene glycol）Ester；
The catalyst is platinum catalyst；
The stabilizer is organic tin stabilizer；
The antifoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether；
The plasticizer is citrate；
The toughener is poly- propylene diene rubber；
The tackifier are propyl trimethoxy silicane；
The preparation method of the timber environment-protective adhesive, includes the following steps：
S1：Compound concentration is 14Be ', the sweet potato starch I that pH values are 3；
S2：A concentration of 1% pentaerythritol oleate, N, N- dimethylacetamides are added into the sweet potato starch I of step S1
Then amine, coupling agent, catalyst are 45 DEG C in temperature, speed of agitator is to carry out cross-linked graft under 60r/min to react 4h, is made
Slurry II；
S3：Be added sodium hydroxide into the slurry II of step S2, it is 9.2 to adjust pH values, be subsequently added into epoxy chlorobutane,
Then urea, initiator, plasticizer, toughener, tackifier are 56 DEG C in temperature, speed of agitator is to be crosslinked under 50r/min
2h is reacted, slurry III is made；
S4：Stabilizer will be added in the slurry III of step S3, it is 7.8 to adjust pH value, is warming up to 75 DEG C, is gelatinized 60min, paste
It is down to 30 DEG C after change, antifoaming agent is added, stirs 15min in the case where rotating speed is 50r/min, timber environment-protective adhesive is made.
Embodiment 3
A kind of timber environment-protective adhesive, as unit of parts by weight, including following raw material：165 parts of starch from sweet potato, pentaerythrite
20 parts of oleate, 16 parts of n,N-dimethylacetamide, 5 parts of sodium hydroxide, 7 parts of epoxy chlorobutane, 5 parts of urea, coupling agent 0.7
Part, 0.4 part of initiator, 0.3 part of catalyst, 0.4 part of stabilizer, 1 part of antifoaming agent, 1.2 parts of plasticizer, 0.9 part of toughener, thickening
0.8 part of agent；
The coupling agent is bis- (benzoyl the peroxide)-hexanes of 2,5- dimethyl -2,5-；
The initiator is two isobutyric acid of azo（Acrylic acid ethylene glycol）Ester；
The catalyst is platinum catalyst；
The stabilizer is organic tin stabilizer；
The antifoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether；
The plasticizer is citrate；
The toughener is poly- propylene diene rubber；
The tackifier are propyl trimethoxy silicane；
The preparation method of the timber environment-protective adhesive, includes the following steps：
S1：Compound concentration is 22Be ', the sweet potato starch I that pH values are 3.8；
S2：A concentration of 1.9% pentaerythritol oleate, N, N- dimethyl second are added into the sweet potato starch I of step S1
Then amide, coupling agent, catalyst are 55 DEG C in temperature, speed of agitator is to carry out cross-linked graft under 80r/min to react 3h, system
Obtain slurry II；
S3：Be added sodium hydroxide into the slurry II of step S2, it is 9.6 to adjust pH values, be subsequently added into epoxy chlorobutane,
Then urea, initiator, plasticizer, toughener, tackifier are 58 DEG C in temperature, speed of agitator is to be handed under 100r/min
Connection reaction 1.5h, is made slurry III；
S4：Stabilizer will be added in the slurry III of step S3, it is 8.2 to adjust pH value, is warming up to 79 DEG C, is gelatinized 55min, paste
It is down to 35 DEG C after change, antifoaming agent is added, stirs 10min in the case where rotating speed is 100r/min, timber environment-protective adhesive is made.
Embodiment 4
A kind of timber environment-protective adhesive, as unit of parts by weight, including following raw material：120 parts of starch from sweet potato, pentaerythrite
12 parts of oleate, 10 parts of n,N-dimethylacetamide, 3 parts of sodium hydroxide, 4 parts of epoxy chlorobutane, 3 parts of urea, coupling agent 0.4
Part, increases 0.2 part of initiator, 0.2 part of catalyst, 0.2 part of stabilizer, 0.6 part of antifoaming agent, 0.8 part of plasticizer, 0.6 part of toughener
0.5 part of stick；
The coupling agent is bis- (benzoyl the peroxide)-hexanes of 2,5- dimethyl -2,5-；
The initiator is two isobutyric acid of azo（Acrylic acid ethylene glycol）Ester；
The catalyst is platinum catalyst；
The stabilizer is organic tin stabilizer；
The antifoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether；
The plasticizer is citrate；
The toughener is poly- propylene diene rubber；
The tackifier are propyl trimethoxy silicane；
The preparation method of the timber environment-protective adhesive, includes the following steps：
S1：Compound concentration is 15Be ', the sweet potato starch I that pH values are 3.2；
S2：A concentration of 1.2% pentaerythritol oleate, N, N- dimethyl second are added into the sweet potato starch I of step S1
Then amide, coupling agent, catalyst are 48 DEG C in temperature, speed of agitator is to carry out cross-linked graft under 65r/min to react 3.8h,
Slurry II is made；
S3：Be added sodium hydroxide into the slurry II of step S2, it is 9.3 to adjust pH values, be subsequently added into epoxy chlorobutane,
Then urea, initiator, plasticizer, toughener, tackifier are 57 DEG C in temperature, speed of agitator is to be crosslinked under 60r/min
1.9h is reacted, slurry III is made；
S4：Stabilizer will be added in the slurry III of step S3, it is 7.9 to adjust pH value, is warming up to 76 DEG C, is gelatinized 57min, paste
It is down to 32 DEG C after change, antifoaming agent is added, stirs 14min in the case where rotating speed is 60/min, timber environment-protective adhesive is made.
Embodiment 5
A kind of timber environment-protective adhesive, as unit of parts by weight, including following raw material：150 parts of starch from sweet potato, pentaerythrite
18 parts of oleate, 15 parts of n,N-dimethylacetamide, 4 parts of sodium hydroxide, 6 parts of epoxy chlorobutane, 4 parts of urea, coupling agent 0.6
Part, 0.3 part of initiator, 0.3 part of catalyst, 0.3 part of stabilizer, 0.9 part of antifoaming agent, 1 part of plasticizer, 0.8 part of toughener, thickening
0.7 part of agent；
The coupling agent is bis- (benzoyl the peroxide)-hexanes of 2,5- dimethyl -2,5-；
The initiator is two isobutyric acid of azo（Acrylic acid ethylene glycol）Ester；
The catalyst is platinum catalyst；
The stabilizer is organic tin stabilizer；
The antifoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether；
The plasticizer is citrate；
The toughener is poly- propylene diene rubber；
The tackifier are propyl trimethoxy silicane；
The preparation method of the timber environment-protective adhesive, includes the following steps：
S1：Compound concentration is 20Be ', the sweet potato starch I that pH values are 3.6；
S2：A concentration of 1.6% pentaerythritol oleate, N, N- dimethyl second are added into the sweet potato starch I of step S1
Then amide, coupling agent, catalyst are 52 DEG C in temperature, speed of agitator is to carry out cross-linked graft under 75r/min to react 3.2h,
Slurry II is made；
S3：Be added sodium hydroxide into the slurry II of step S2, it is 9.5 to adjust pH values, be subsequently added into epoxy chlorobutane,
Then urea, initiator, plasticizer, toughener, tackifier are 57 DEG C in temperature, speed of agitator is to be crosslinked under 90r/min
1.6h is reacted, slurry III is made；
S4：Stabilizer will be added in the slurry III of step S3, it is 8.1 to adjust pH value, is warming up to 78 DEG C, is gelatinized 56min, paste
It is down to 34 DEG C after change, antifoaming agent is added, stirs 12min in the case where rotating speed is 90r/min, timber environment-protective adhesive is made.
Adhesive of the present invention is glued for poplar plywood, dry glue excellent strength.According to GB/T 14732-2006 institutes
Prescriptive procedure is tested, and test specimen is put into 63 ± 3 DEG C of hot water and impregnates 3h, then test specimen is lain in 63 ± 3 DEG C of sky
Dry 1h in gas convective drying case, cool down 10min at room temperature after taking-up, then carries out bonding strength test.Product bonding strength,
Water resistance is interior to meet national II class glued board relevant criterion.
Following table is the performance test results and the pollopas based Wood Adhesives country of the timber environment-protective adhesive of embodiment 1-5
Mark（Quasi- abbreviation scale value）Comparison.
The above content is it cannot be assumed that present invention specific implementation is confined to these explanations, for the technical field of the invention
Those of ordinary skill for, under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all answers
When being considered as belonging to present invention scope of patent protection determined by the appended claims.
Claims (1)
1. a kind of timber environment-protective adhesive, which is characterized in that as unit of parts by weight, including following raw material：Starch from sweet potato 100-
165 parts, 10-20 parts of pentaerythritol oleate, 9-16 parts of n,N-dimethylacetamide, 2-5 parts of sodium hydroxide, epoxy chlorobutane 3-
7 parts, 2-5 parts of urea, 0.3-0.7 parts of coupling agent, 0.1-0.4 parts of initiator, 0.1-0.3 parts of catalyst, stabilizer 0.1-0.4
Part, 0.5-1 parts of antifoaming agent, 0.6-1.2 parts of plasticizer, 0.5-0.9 parts of toughener, 0.4-0.8 parts of tackifier；
The coupling agent is bis- (benzoyl the peroxide)-hexanes of 2,5- dimethyl -2,5-；
The initiator is two isobutyric acid of azo (acrylic acid ethylene glycol) ester；
The catalyst is platinum catalyst；
The stabilizer is organic tin stabilizer；
The antifoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether；
The plasticizer is citrate；
The toughener is poly- propylene diene rubber；
The tackifier are propyl trimethoxy silicane；
The preparation method of the timber environment-protective adhesive, includes the following steps：
S1：Compound concentration is 14-22Be ', and pH value is the sweet potato starch I of 3-3.8；
S2：Pentaerythritol oleate, the N of a concentration of 1%-1.9%, N- dimethyl are added into the sweet potato starch I of step S1
Then acetamide, coupling agent, catalyst are 45-55 DEG C in temperature, speed of agitator is that progress cross-linked graft is anti-under 60-80r/min
3-4h is answered, slurry II is made；
S3：Sodium hydroxide is added into the slurry II of step S2, adjusting pH value is 9.2-9.6, is subsequently added into epoxy chlorobutane, urine
Element, initiator, plasticizer, toughener, tackifier, then temperature be 56-58 DEG C, speed of agitator be 50-100r/min under into
Slurry III is made in row cross-linking reaction 1.5-2h；
S4：Stabilizer will be added in the slurry III of step S3, adjusting pH value is 7.8-8.2, is warming up to 75-79 DEG C, is gelatinized 55-
60min is down to 30-35 DEG C after gelatinization, antifoaming agent is added, and stirs 10-15min in the case where rotating speed is 50-100r/min, is made
Timber environment-protective adhesive.
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| CN1293159C (en) * | 2005-05-18 | 2007-01-03 | 江南大学 | Method for preparing starch glue for lumber |
| JP5610425B2 (en) * | 2010-03-30 | 2014-10-22 | 日本食品化工株式会社 | Method for producing water-based paint composition |
| CN101892024B (en) * | 2010-07-02 | 2012-02-15 | 浙江大学 | Adhesive for wood and preparation method thereof |
| CN102634305B (en) * | 2012-04-23 | 2013-06-19 | 浙江农林大学 | Production method of starch-based formaldehyde-free glue |
| CN102676098B (en) * | 2012-06-11 | 2014-01-15 | 合肥工业大学 | Modified-starch-based wood adhesive and preparation method thereof |
| CN105820780B (en) * | 2016-06-07 | 2017-11-17 | 江南大学 | A kind of starch adhesive for timber based on pre-emulsification technology and preparation method thereof |
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2016
- 2016-08-22 CN CN201610702412.9A patent/CN106047218B/en active Active
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