CN106047218A - Wood environmental protection adhesive - Google Patents
Wood environmental protection adhesive Download PDFInfo
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- CN106047218A CN106047218A CN201610702412.9A CN201610702412A CN106047218A CN 106047218 A CN106047218 A CN 106047218A CN 201610702412 A CN201610702412 A CN 201610702412A CN 106047218 A CN106047218 A CN 106047218A
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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
-
- 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
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- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a wood environmental protection adhesive, which comprises the following raw materials by weight: 100-165 parts of sweet potato starch, 10-20 parts of pentaerythritol oleate, 9-16 parts of N,N-dimethylacetamide, 2-5 parts of sodium hydroxide, 3-7 parts of epoxy chlorobutane, 2-5 parts of urea, 0.3-0.7 part of a coupling agent, 0.1-0.4 part of an initiator, 0.1-0.3 part of a catalyst, 0.1-0.4 part of a stabilizer, 0.5-1 part of a defoamer, 0.6-1.2 parts of a plasticizer, 0.5-0.9 part of a toughening agent, and 0.4-0.8 part of a tackifier. According to the present invention, the wood environmental protection adhesive has characteristics of high strength and strong water resistance, and completely meets the related standard in GB/T14732-2006, and the strength of the produced plywood is far beyond the national class II wood-based panel standard; and the wood environmental protection adhesive can be widely used in production of wood-based panels, plywood and cellulose boards, and can replace the three aldehyde glue.
Description
Technical field
The invention belongs to adhesive preparing technical field, be specifically related to a kind of timber environment-protective adhesive.
Background technology
Since entering for 21st century, domestic wood-based panel industry obtains unconventional fast development, increases by 22% every year, 2009
Wood-based plate yield consumes adhesive about 5,000,000 more than ten thousand stere more than 8000, year, becomes world's Wood-based Panel Production the first big country.
At present, binding agent main still Lauxite, phenolic resin, the melamino-formaldehyde tree that domestic and international wood-based plate manufacturing uses
Fat etc..In the adhesive of this type, free formaldehyde content is higher, slowly releases toxic formaldehyde gas, to human body during use
Damage.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.As added the fomol catcher such as carbamide, tripolycyanamide；The opposing party
It is that raw material prepares based Wood Adhesives to replace formaldehyde system adhesive that face attempts to inexpensive biomass poly hydroxyl compound.Institute
In the above-mentioned thinking of report, the cost of starch-based glue stick is relatively low, is the natural poly hydroxyl compound of one having most application prospect
Material.Be widely used in the national conditions of corrugated board packing box in conjunction with domestic starch adhesive, starch adhesive is through novel
The MOLECULE DESIGN of destructurized starch with control graft copolymerization after oxidative cleavage, crosslinking, solve adhesion strength and resistance to water, for artificial
Board industry economically considers it is 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 glue stick is for wood-based plate from the point of view of result of study, however it remains resistance to water, adhesive strength, solid
A difficult problem for content and bin stability etc..The wood-based plate technological development aspect that starch adhesive is applied also also has a lot of difficulty to need
Overcome.
Summary of the invention
The present invention provides a kind of timber environment-protective adhesive, to solve existing starch-based glue stick for wood-based plate, still deposits
In problems such as resistance to water, adhesive strength, solid content and bin stability differences.The adhesive bonding strength of the present invention is high, resistance to water
By force, complying fully with relevant criterion in GB/T14732-2006, the Strength of Plywood produced is considerably beyond national II class wood-based plate
Standard.Can be widely applied to the production of wood-based plate, plywood, cellulose plate, replace the use of " three aldehyde " glue.
For solve above technical problem, the present invention by the following technical solutions:
A kind of timber environment-protective adhesive, in units of weight portion, including following raw material: sweet potato starch 100-165 part, tetramethylolmethane
Oleate 10-20 part, N,N-dimethylacetamide 9-16 part, sodium hydroxide 2-5 part, epoxy chlorobutane 3-7 part, carbamide 2-5 part,
Coupling agent 0.3-0.7 part, initiator 0.1-0.4 part, catalyst 0.1-0.3 part, stabilizer 0.1-0.4 part, defoamer 0.5-1
Part, plasticizer 0.6-1.2 part, toughener 0.5-0.9 part, viscosifier 0.4-0.8 part；
Described toughener is poly-propylene diene rubber；
Described viscosifier are propyl trimethoxy silicane；
The preparation method of described timber environment-protective adhesive, comprises the following steps:
S1: compound concentration be 14-22Be ', pH value be 3-3.8 sweet potato starch slurry I；
S2: starching addition concentration in I to the sweet potato starch of step S1 is the PETO of 1%-1.9%, N, N-dimethyl second
Amide, coupling agent, catalyst, be then 45-55 DEG C in temperature, and speed of agitator is to carry out cross-linked graft reaction under 60-80r/min
3-4h, prepares slurry II；
S3: in the slurry II of step S2 add sodium hydroxide, regulation pH value be 9.2-9.6, be subsequently added into epoxy chlorobutane,
Carbamide, initiator, plasticizer, toughener, viscosifier, be then 56-58 DEG C in temperature, and speed of agitator is under 50-100r/min
Carry out cross-linking reaction 1.5-2h, prepare slurry III；
S4: will add stabilizer in the slurry III of step S3, regulation pH value is 7.8-8.2, is warming up to 75-79 DEG C, gelatinizing 55-
60min, gelatinizing is down to 30-35 DEG C after terminating, is added defoamer, stirs 10-15min, prepare under rotating speed is 50-100r/min
Timber environment-protective adhesive.
Further, described coupling agent is 2,5-dimethyl-2, double (benzoyl the peroxide)-hexane of 5-.
Further, described initiator is azo two isopropylformic acid. (acrylic acid ethylene glycol) ester.
Further, described catalyst is platinum catalyst.
Further, described stabilizer is organic tin stabilizer.
Further, described defoamer is polyoxyethylene polyoxypropylene tetramethylolmethane ether.
Further, described plasticizer is citrate.
The method have the advantages that
(1) primary raw material used in the present invention is sweet potato starch, belongs to biological material, and price advantage is obvious, wide material sources,
Environmental protection, belongs to the rational exploitation and utilization of renewable agricultural resource, can improve the added value of agricultural product.
(2) in the process route that the adhesive of the present invention composes, any material containing formaldehyde is not added, synthesized
Adhesive product free formaldehyde release reaches E0 grade standard (≤0.5mg/L), reduces the discharge of formaldehyde, to human body fanout free region,
Belong to environmental type adhesive.
(3) adhesive of the present invention has solid content high (46.8%-49.9%, higher than pollopas admittedly containing standard), water-fast
Performance good (75-78h), bonding strength high (7.98-8.36Mpa), hardening time fast (40-44s), storage phase length (>=205-210
My god), reaction condition gentleness, less energy consumption, the feature such as technique is simple, low cost, equipment are simple.
(4) the adhesive bonding strength of the present invention is high and resistance to water is strong, complies fully with relevant mark in GB/T14732-2006
Standard, the Strength of Plywood produced is considerably beyond national II class wood-based plate standard.Can be widely applied to wood-based plate, plywood, fibre
The industrial flow-line of dimension element plate produces, and replaces the use of " three aldehyde " glue, reduces the dependence to fossil resource.
Detailed description of the invention
For ease of being more fully understood that the present invention, being illustrated by following instance, these examples belong to the protection of the present invention
Scope, but it is not intended to protection scope of the present invention.
In an embodiment, described timber environment-protective adhesive, in units of weight portion, including following raw material: sweet potato starch
100-165 part, PETO 10-20 part, N,N-dimethylacetamide 9-16 part, sodium hydroxide 2-5 part, epoxy neoprene
Alkane 3-7 part, carbamide 2-5 part, coupling agent 0.3-0.7 part, initiator 0.1-0.4 part, catalyst 0.1-0.3 part, stabilizer 0.1-
0.4 part, defoamer 0.5-1 part, plasticizer 0.6-1.2 part, toughener 0.5-0.9 part, viscosifier 0.4-0.8 part；
Described coupling agent is 2,5-dimethyl-2, double (benzoyl the peroxide)-hexane of 5-；
Described initiator is azo two isopropylformic acid. (acrylic acid ethylene glycol) ester；
Described catalyst is platinum catalyst；
Described stabilizer is organic tin stabilizer；
Described defoamer is polyoxyethylene polyoxypropylene tetramethylolmethane ether；
Described plasticizer is citrate；
Described toughener is poly-propylene diene rubber；
Described viscosifier are propyl trimethoxy silicane；
The preparation method of described timber environment-protective adhesive, comprises the following steps:
S1: compound concentration be 14-22Be ', pH value be 3-3.8 sweet potato starch slurry I；
S2: starching addition concentration in I to the sweet potato starch of step S1 is the PETO of 1%-1.9%, N, N-dimethyl second
Amide, coupling agent, catalyst, be then 45-55 DEG C in temperature, and speed of agitator is to carry out cross-linked graft reaction under 60-80r/min
3-4h, prepares slurry II；
S3: in the slurry II of step S2 add sodium hydroxide, regulation pH value be 9.2-9.6, be subsequently added into epoxy chlorobutane,
Carbamide, initiator, plasticizer, toughener, viscosifier, be then 56-58 DEG C in temperature, and speed of agitator is under 50-100r/min
Carry out cross-linking reaction 1.5-2h, prepare slurry III；
S4: will add stabilizer in the slurry III of step S3, regulation pH value is 7.8-8.2, is warming up to 75-79 DEG C, gelatinizing 55-
60min, gelatinizing is down to 30-35 DEG C after terminating, is added defoamer, stirs 10-15min, prepare under rotating speed is 50-100r/min
Timber environment-protective adhesive.
Below by more specifically embodiment, the present invention will be described.
Embodiment 1
A kind of timber environment-protective adhesive, in units of weight portion, including following raw material: sweet potato starch 132 parts, tetramethylolmethane oleic acid
Ester 15 parts, N,N-dimethylacetamide 13 parts, sodium hydroxide 4 parts, epoxy chlorobutane 5 parts, 4 parts of carbamide, coupling agent 0.5 part, draw
Send out agent 0.3 part, catalyst 0.2 part, stabilizer 0.3 part, defoamer 0.8 part, plasticizer 0.9 part, toughener 0.8 part, viscosifier
0.6 part；
Described coupling agent is 2,5-dimethyl-2, double (benzoyl the peroxide)-hexane of 5-；
Described initiator is azo two isopropylformic acid. (acrylic acid ethylene glycol) ester；
Described catalyst is platinum catalyst；
Described stabilizer is organic tin stabilizer；
Described defoamer is polyoxyethylene polyoxypropylene tetramethylolmethane ether；
Described plasticizer is citrate；
Described toughener is poly-propylene diene rubber；
Described viscosifier are propyl trimethoxy silicane；
The preparation method of described timber environment-protective adhesive, comprises the following steps:
S1: compound concentration be 18Be ', pH value be 3.4 sweet potato starch slurry I；
S2: starch to the sweet potato starch of step S1 and add PETO, the N that concentration is 1.5%, N-dimethylacetamide in I
Amine, coupling agent, catalyst, be then 50 DEG C in temperature, and speed of agitator is to carry out cross-linked graft reaction 3.5h, system under 70r/min
Obtain slurry II；
S3: in the slurry II of step S2 add sodium hydroxide, regulation pH value be 9.4, be subsequently added into epoxy chlorobutane, carbamide,
Initiator, plasticizer, toughener, viscosifier, be then 57 DEG C in temperature, and speed of agitator is to carry out cross-linking reaction under 80r/min
1.8h, prepares slurry III；
S4: will add stabilizer in the slurry III of step S3, regulation pH value is 8, is warming up to 78 DEG C, and gelatinizing 58min, gelatinizing terminates
After be down to 32 DEG C, add defoamer, under rotating speed is 80r/min stir 12min, prepare timber environment-protective adhesive.
Embodiment 2
A kind of timber environment-protective adhesive, in units of weight portion, including following raw material: sweet potato starch 100 parts, tetramethylolmethane oleic acid
Ester 10 parts, N,N-dimethylacetamide 9 parts, sodium hydroxide 2 parts, epoxy chlorobutane 3 parts, 2 parts of carbamide, coupling agent 0.3 part, initiation
Agent 0.1 part, catalyst 0.1 part, stabilizer 0.1 part, defoamer 0.5 part, plasticizer 0.6 part, toughener 0.5 part, viscosifier 0.4
Part；
Described coupling agent is 2,5-dimethyl-2, double (benzoyl the peroxide)-hexane of 5-；
Described initiator is azo two isopropylformic acid. (acrylic acid ethylene glycol) ester；
Described catalyst is platinum catalyst；
Described stabilizer is organic tin stabilizer；
Described defoamer is polyoxyethylene polyoxypropylene tetramethylolmethane ether；
Described plasticizer is citrate；
Described toughener is poly-propylene diene rubber；
Described viscosifier are propyl trimethoxy silicane；
The preparation method of described timber environment-protective adhesive, comprises the following steps:
S1: compound concentration be 14Be ', pH value be 3 sweet potato starch slurry I；
S2: starch to the sweet potato starch of step S1 add in I PETO that concentration is 1%, N,N-dimethylacetamide,
Coupling agent, catalyst, be then 45 DEG C in temperature, and speed of agitator is to carry out cross-linked graft reaction 4h under 60r/min, prepares slurry
Ⅱ；
S3: in the slurry II of step S2 add sodium hydroxide, regulation pH value be 9.2, be subsequently added into epoxy chlorobutane, carbamide,
Initiator, plasticizer, toughener, viscosifier, be then 56 DEG C in temperature, and speed of agitator is to carry out cross-linking reaction under 50r/min
2h, prepares slurry III；
S4: will add stabilizer in the slurry III of step S3, regulation pH value is 7.8, is warming up to 75 DEG C, gelatinizing 60min, and gelatinizing is tied
It is down to 30 DEG C after bundle, adds defoamer, under rotating speed is 50r/min, stirs 15min, prepares timber environment-protective adhesive.
Embodiment 3
A kind of timber environment-protective adhesive, in units of weight portion, including following raw material: sweet potato starch 165 parts, tetramethylolmethane oleic acid
Ester 20 parts, N,N-dimethylacetamide 16 parts, sodium hydroxide 5 parts, epoxy chlorobutane 7 parts, 5 parts of carbamide, coupling agent 0.7 part, draw
Send out agent 0.4 part, catalyst 0.3 part, stabilizer 0.4 part, defoamer 1 part, plasticizer 1.2 parts, toughener 0.9 part, viscosifier 0.8
Part；
Described coupling agent is 2,5-dimethyl-2, double (benzoyl the peroxide)-hexane of 5-；
Described initiator is azo two isopropylformic acid. (acrylic acid ethylene glycol) ester；
Described catalyst is platinum catalyst；
Described stabilizer is organic tin stabilizer；
Described defoamer is polyoxyethylene polyoxypropylene tetramethylolmethane ether；
Described plasticizer is citrate；
Described toughener is poly-propylene diene rubber；
Described viscosifier are propyl trimethoxy silicane；
The preparation method of described timber environment-protective adhesive, comprises the following steps:
S1: compound concentration be 22Be ', pH value be 3.8 sweet potato starch slurry I；
S2: starch to the sweet potato starch of step S1 and add PETO, the N that concentration is 1.9%, N-dimethylacetamide in I
Amine, coupling agent, catalyst, be then 55 DEG C in temperature, and speed of agitator is to carry out cross-linked graft reaction 3h under 80r/min, prepares
Slurry II；
S3: in the slurry II of step S2 add sodium hydroxide, regulation pH value be 9.6, be subsequently added into epoxy chlorobutane, carbamide,
Initiator, plasticizer, toughener, viscosifier, be then 58 DEG C in temperature, and speed of agitator is to carry out cross-linking reaction under 100r/min
1.5h, prepares slurry III；
S4: will add stabilizer in the slurry III of step S3, regulation pH value is 8.2, is warming up to 79 DEG C, gelatinizing 55min, and gelatinizing is tied
It is down to 35 DEG C after bundle, adds defoamer, under rotating speed is 100r/min, stirs 10min, prepares timber environment-protective adhesive.
Embodiment 4
A kind of timber environment-protective adhesive, in units of weight portion, including following raw material: sweet potato starch 120 parts, tetramethylolmethane oleic acid
Ester 12 parts, N,N-dimethylacetamide 10 parts, sodium hydroxide 3 parts, epoxy chlorobutane 4 parts, 3 parts of carbamide, coupling agent 0.4 part, draw
Send out agent 0.2 part, catalyst 0.2 part, stabilizer 0.2 part, defoamer 0.6 part, plasticizer 0.8 part, toughener 0.6 part, viscosifier
0.5 part；
Described coupling agent is 2,5-dimethyl-2, double (benzoyl the peroxide)-hexane of 5-；
Described initiator is azo two isopropylformic acid. (acrylic acid ethylene glycol) ester；
Described catalyst is platinum catalyst；
Described stabilizer is organic tin stabilizer；
Described defoamer is polyoxyethylene polyoxypropylene tetramethylolmethane ether；
Described plasticizer is citrate；
Described toughener is poly-propylene diene rubber；
Described viscosifier are propyl trimethoxy silicane；
The preparation method of described timber environment-protective adhesive, comprises the following steps:
S1: compound concentration be 15Be ', pH value be 3.2 sweet potato starch slurry I；
S2: starch to the sweet potato starch of step S1 and add PETO, the N that concentration is 1.2%, N-dimethylacetamide in I
Amine, coupling agent, catalyst, be then 48 DEG C in temperature, and speed of agitator is to carry out cross-linked graft reaction 3.8h, system under 65r/min
Obtain slurry II；
S3: in the slurry II of step S2 add sodium hydroxide, regulation pH value be 9.3, be subsequently added into epoxy chlorobutane, carbamide,
Initiator, plasticizer, toughener, viscosifier, be then 57 DEG C in temperature, and speed of agitator is to carry out cross-linking reaction under 60r/min
1.9h, prepares slurry III；
S4: will add stabilizer in the slurry III of step S3, regulation pH value is 7.9, is warming up to 76 DEG C, gelatinizing 57min, and gelatinizing is tied
It is down to 32 DEG C after bundle, adds defoamer, under rotating speed is 60/min, stirs 14min, prepares timber environment-protective adhesive.
Embodiment 5
A kind of timber environment-protective adhesive, in units of weight portion, including following raw material: sweet potato starch 150 parts, tetramethylolmethane oleic acid
Ester 18 parts, N,N-dimethylacetamide 15 parts, sodium hydroxide 4 parts, epoxy chlorobutane 6 parts, 4 parts of carbamide, coupling agent 0.6 part, draw
Send out agent 0.3 part, catalyst 0.3 part, stabilizer 0.3 part, defoamer 0.9 part, plasticizer 1 part, toughener 0.8 part, viscosifier 0.7
Part；
Described coupling agent is 2,5-dimethyl-2, double (benzoyl the peroxide)-hexane of 5-；
Described initiator is azo two isopropylformic acid. (acrylic acid ethylene glycol) ester；
Described catalyst is platinum catalyst；
Described stabilizer is organic tin stabilizer；
Described defoamer is polyoxyethylene polyoxypropylene tetramethylolmethane ether；
Described plasticizer is citrate；
Described toughener is poly-propylene diene rubber；
Described viscosifier are propyl trimethoxy silicane；
The preparation method of described timber environment-protective adhesive, comprises the following steps:
S1: compound concentration be 20Be ', pH value be 3.6 sweet potato starch slurry I；
S2: starch to the sweet potato starch of step S1 and add PETO, the N that concentration is 1.6%, N-dimethylacetamide in I
Amine, coupling agent, catalyst, be then 52 DEG C in temperature, and speed of agitator is to carry out cross-linked graft reaction 3.2h, system under 75r/min
Obtain slurry II；
S3: in the slurry II of step S2 add sodium hydroxide, regulation pH value be 9.5, be subsequently added into epoxy chlorobutane, carbamide,
Initiator, plasticizer, toughener, viscosifier, be then 57 DEG C in temperature, and speed of agitator is to carry out cross-linking reaction under 90r/min
1.6h, prepares slurry III；
S4: will add stabilizer in the slurry III of step S3, regulation pH value is 8.1, is warming up to 78 DEG C, gelatinizing 56min, and gelatinizing is tied
It is down to 34 DEG C after bundle, adds defoamer, under rotating speed is 90r/min, stirs 12min, prepares timber environment-protective adhesive.
Adhesive of the present invention is glued for poplar plywood, its dry glue excellent strength.According to GB/T 14732-2006 institute
Prescriptive procedure is tested, and test specimen is put into dipping 3h in the hot water of 63 ± 3 DEG C, then test specimen lies in the sky of 63 ± 3 DEG C
Being dried 1h in gas convective drying case, at room temperature lower the temperature after taking-up 10min, then carries out bonding strength test.Product bonding strength,
Resistance to water all in meet national II class plywood 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
The comparison of mark (quasi-abbreviation scale value).
Above content is it cannot be assumed that the present invention is embodied as being confined to these explanations, for the technical field of the invention
Those of ordinary skill for, without departing under present inventive concept premise, it is also possible to make some simple deduction or replace, all answer
When being considered as belonging to the scope of patent protection that the present invention is determined by the claims submitted to.
Claims (7)
1. a timber environment-protective adhesive, it is characterised in that in units of weight portion, including following raw material: sweet potato starch 100-
165 parts, PETO 10-20 part, N,N-dimethylacetamide 9-16 part, sodium hydroxide 2-5 part, epoxy chlorobutane 3-
7 parts, carbamide 2-5 part, coupling agent 0.3-0.7 part, initiator 0.1-0.4 part, catalyst 0.1-0.3 part, stabilizer 0.1-0.4
Part, defoamer 0.5-1 part, plasticizer 0.6-1.2 part, toughener 0.5-0.9 part, viscosifier 0.4-0.8 part；
Described toughener is poly-propylene diene rubber；
Described viscosifier are propyl trimethoxy silicane；
The preparation method of described timber environment-protective adhesive, comprises the following steps:
S1: compound concentration be 14-22Be ', pH value be 3-3.8 sweet potato starch slurry I；
S2: starching addition concentration in I to the sweet potato starch of step S1 is the PETO of 1%-1.9%, N, N-dimethyl second
Amide, coupling agent, catalyst, be then 45-55 DEG C in temperature, and speed of agitator is to carry out cross-linked graft reaction under 60-80r/min
3-4h, prepares slurry II；
S3: in the slurry II of step S2 add sodium hydroxide, regulation pH value be 9.2-9.6, be subsequently added into epoxy chlorobutane,
Carbamide, initiator, plasticizer, toughener, viscosifier, be then 56-58 DEG C in temperature, and speed of agitator is under 50-100r/min
Carry out cross-linking reaction 1.5-2h, prepare slurry III；
S4: will add stabilizer in the slurry III of step S3, regulation pH value is 7.8-8.2, is warming up to 75-79 DEG C, gelatinizing 55-
60min, gelatinizing is down to 30-35 DEG C after terminating, is added defoamer, stirs 10-15min, prepare under rotating speed is 50-100r/min
Timber environment-protective adhesive.
Timber environment-protective adhesive the most according to claim 1, it is characterised in that described coupling agent is 2,5-dimethyl-2,
Double (benzoyl the peroxide)-hexane of 5-.
Timber environment-protective adhesive the most according to claim 1, it is characterised in that described initiator is azo two isopropylformic acid.
(acrylic acid ethylene glycol) ester.
Timber environment-protective adhesive the most according to claim 1, it is characterised in that described catalyst is platinum catalyst.
Timber environment-protective adhesive the most according to claim 4, it is characterised in that described stabilizer is organic tin stabilizer.
Timber environment-protective adhesive the most according to claim 1, it is characterised in that described defoamer is polyoxyethylene polyoxy third
Alkene tetramethylolmethane ether.
Timber environment-protective adhesive the most according to claim 1, it is characterised in that described plasticizer is citrate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702412.9A CN106047218B (en) | 2016-08-22 | 2016-08-22 | A kind of timber environment-protective adhesive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702412.9A CN106047218B (en) | 2016-08-22 | 2016-08-22 | A kind of timber environment-protective adhesive |
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| CN106047218B CN106047218B (en) | 2018-10-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620443A (en) * | 2017-09-27 | 2018-01-23 | 重庆华亚家私有限公司 | A kind of energy-conserving and environment-protective composite floor board and its manufacture method |
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| CN106047218B (en) | 2018-10-12 |
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