CN113858376A - Preparation method of high-strength environment-friendly ecological plate - Google Patents

Preparation method of high-strength environment-friendly ecological plate Download PDF

Info

Publication number
CN113858376A
CN113858376A CN202111136426.6A CN202111136426A CN113858376A CN 113858376 A CN113858376 A CN 113858376A CN 202111136426 A CN202111136426 A CN 202111136426A CN 113858376 A CN113858376 A CN 113858376A
Authority
CN
China
Prior art keywords
reacting
epoxidized
preparing
heating
oil
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
Application number
CN202111136426.6A
Other languages
Chinese (zh)
Inventor
高富星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Jiufu Household Material Co ltd
Original Assignee
Hunan Jiufu Household Material Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hunan Jiufu Household Material Co ltd filed Critical Hunan Jiufu Household Material Co ltd
Priority to CN202111136426.6A priority Critical patent/CN113858376A/en
Publication of CN113858376A publication Critical patent/CN113858376A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/10Moulding of mats
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D1/00Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N1/00Pretreatment of moulding material
    • B27N1/02Mixing the material with binding agent
    • B27N1/0209Methods, e.g. characterised by the composition of the agent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/002Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/02Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/2805Compounds having only one group containing active hydrogen
    • C08G18/288Compounds containing at least one heteroatom other than oxygen or nitrogen
    • C08G18/289Compounds containing at least one heteroatom other than oxygen or nitrogen containing silicon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/62Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6291Polymers of phosphorus containing compounds having carbon-to-carbon double bonds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/6505Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6511Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38 compounds of group C08G18/3203
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/6541Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/34
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/6547Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

The invention relates to the technical field of household building materials, in particular to a preparation method of a high-strength environment-friendly ecological plate, which comprises the steps of mixing and stirring adhesive emulsion and wood powder uniformly, prepressing for 5-10s/mm at 1-1.5MPa and 70-80 ℃, heating to 130-150 ℃, keeping pressure and pressing for 5-10s/mm, then pressurizing to 10-12MPa, keeping temperature and pressing for 10-15s/mm to obtain a plate blank, and finally compounding a panel on the plate blank.

Description

Preparation method of high-strength environment-friendly ecological plate
Technical Field
The invention relates to the field of household building materials, in particular to a preparation method of a high-strength environment-friendly ecological plate.
Background
The ecological plate serving as a common plate in the fields of home decoration, plate-type furniture, cabinets, wardrobes, bathrooms and the like has the advantages of high hardness, uniform structure, good sound absorption and sound insulation performance, small formaldehyde release amount and the like, but most of the ecological plates on the market use melamine adhesive at present, and although the volatilization release of formaldehyde is reduced by a subsequent edge sealing step, certain health risks still exist.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the technical problems, the invention provides a preparation method of a high-strength environment-friendly ecological plate.
The adopted technical scheme is as follows:
a preparation method of a high-strength environment-friendly ecological plate comprises the following steps:
s1: uniformly mixing fluorine-containing vegetable oil polyol and isocyanate, adding an organic tin catalyst, heating to 70-75 ℃, reacting for 1-2h, adding polyvinyl alcohol phosphate and a composite chain extender, heating to 80-85 ℃, reacting for 1-2h, cooling to 70-75 ℃, adding 1, 4-butanediol and acetone, reacting for 3-5h, cooling to 50-55 ℃, adding a capping agent, reacting for 1-1.5h, adding a neutralizing agent, reacting for 10-40min, adding water, stirring for dispersing, and finally removing acetone under reduced pressure to obtain an adhesive emulsion;
s2: mixing and stirring the adhesive emulsion and the wood powder uniformly, prepressing for 5-10s/mm at 1-1.5MPa and 70-80 ℃, heating to 130-150 ℃, keeping pressure and pressing for 5-10s/mm, then pressurizing to 10-12MPa, keeping the temperature and pressing for 10-15s/mm to obtain a plate blank, and finally compounding a panel on the plate blank.
The hot pressing time varies with the thickness of the material, and 5-10s/mm, 5-10s/mm and 10-15s/mm mean that the pressing time is prolonged by 5-10s, 5-10s and 10-15s for every 1mm of the thickness of the material.
Further, the preparation method of the fluorine-containing vegetable oil polyol comprises the following steps:
mixing trifluoroacetic acid and cyclohexane uniformly, adding strong acid cation exchange resin and epoxy vegetable oil, heating to 40-45 ℃, reacting for 6-8h, filtering, and distilling the filtrate under reduced pressure to remove small molecular fraction.
Further, the epoxidized vegetable oil is at least one of epoxidized soybean oil, epoxidized castor oil, epoxidized palm oil, epoxidized peanut oil, epoxidized linseed oil, epoxidized corn oil and epoxidized rapeseed oil, and is preferably epoxidized soybean oil.
The isocyanate is at least one of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate, and lysine diisocyanate, and preferably isophorone diisocyanate.
Further, the organic tin catalyst is at least one of dibutyl tin dilaurate, di-n-octyl tin dilaurate, stannous octoate, dibutyltin didodecyl sulfide and dibutyltin diacetate.
Further, the composite chain extender is a composition of diethyl dimethylolmalonate and dimethylolpropionic acid.
Further, the end-capping agent is at least one of KH-550, KH-560 and KH-570, preferably KH-550.
Further, the neutralizing agent is at least one of triethylamine, triethanolamine, N-methyldiethanolamine, ammonia water, sodium hydroxide and potassium hydroxide.
Further, the mass ratio of the adhesive emulsion to the wood powder in the S2 is 1: 3-5.
Furthermore, the temperature rising speed in S2 is 1-2 ℃/min, and the pressure increasing speed is 0.1-0.5 MPa/min.
The slab is made of wood powder, so that the slab inevitably has certain granular feel, the panel mainly plays a role in attractive decoration, the material can be a solid wood board made of fir, tung or poplar, and also can be a board made of high polymer plastics.
The invention has the beneficial effects that:
the invention provides a preparation method of a high-strength environment-friendly ecological plate, which uses fluorine-containing vegetable oil polyalcohol to replace the current commonly used polyether polyalcohol, reduces the use of pungent odor raw materials and the release amount of formaldehyde on one hand, uses the vegetable oil raw materials which are more green and environment-friendly on the other hand, accords with the idea of sustainability, improves the water resistance of an adhesive film by introducing fluorine atoms, introduces polyvinyl alcohol phosphate into a polyurethane molecular chain, has a crosslinking function in a polyurethane molecular chain segment due to the hydroxyl contained in the polyvinyl alcohol phosphate, not only increases the adhesive force of an adhesive, but also can generate special substances during combustion to play a flame-retardant effect. Meanwhile, the polyvinyl alcohol phosphate contains-O-bonds, so that the cross-linked chain segment has flexibility, siloxane can be introduced into a silane end-capping agent, the siloxane group and the surface of an organic or inorganic material have excellent adhesive bonding performance, and a C-Si-P-F flame-retardant system is formed in a polyurethane adhesive.
Detailed Description
The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
Example 1:
a preparation method of a high-strength environment-friendly ecological plate comprises the following steps:
34.2g of fluorine-containing soybean oil polyol and 27.8g of isophorone diisocyanate are added into a flask provided with a nitrogen protection and condensation device, after uniformly stirring and mixing, adding two drops of dibutyl tin dilaurate, heating to 75 ℃ for reaction for 2h, adding 2.5g of polyvinyl alcohol phosphate and 3.2g of a composite chain extender consisting of diethyl dimethylolmalonate and dimethylolpropionic acid in a mass ratio of 1:1, heating to 85 ℃, reacting for 2h, cooling to 70 ℃, adding 1, 4-butanediol and a proper amount of acetone, adding acetone for reducing the viscosity of the system, reacting for 4h, cooling to 50 ℃, adding an end-capping agent KH-5501.5 g, reacting for 1.5h, adding 2.7g of triethylamine as a neutralizing agent, reacting for 30min, adding 300g of water, stirring and dispersing, finally, removing the acetone under reduced pressure to obtain an adhesive emulsion, and mixing the adhesive emulsion with dried poplar powder according to a mass ratio of 1: 4, uniformly mixing and stirring, pouring into a mould, prepressing at 1.5MPa and 75 ℃ for 10s/mm, heating to 140 ℃, keeping pressure and pressing for 10s/mm, then pressurizing to 10MPa, keeping the temperature and pressing for 15s/mm to obtain a plate blank, drying the plate blank, and finally compounding a panel on the plate blank.
The preparation method of the fluorine-containing soybean oil polyol comprises the following steps:
mixing trifluoroacetic acid 100g and cyclohexane 1000g uniformly, adding strong acid cation exchange resin 1g and epoxidized soybean oil 100g, heating to 45 deg.C, reacting for 8h, filtering to remove resin, and distilling the filtrate under reduced pressure to remove cyclohexane, excessive trifluoroacetic acid and water generated by the reaction.
Example 2:
a preparation method of a high-strength environment-friendly ecological plate comprises the following steps:
34.2g of fluorine-containing soybean oil polyol and 27.8g of isophorone diisocyanate are added into a flask provided with a nitrogen protection and condensation device, after uniformly stirring and mixing, adding two drops of dibutyl tin dilaurate, heating to 70 ℃ for reaction for 1h, adding 2.5g of polyvinyl alcohol phosphate and 3.2g of a composite chain extender consisting of diethyl dimethylolmalonate and dimethylolpropionic acid in a mass ratio of 1:1, heating to 80 ℃ for reaction for 1h, cooling to 70 ℃, adding 1, 4-butanediol and a proper amount of acetone, adding acetone for reducing the viscosity of the system, cooling to 50 ℃ after reaction for 3h, adding an end capping agent KH-5501.5 g, adding 2.7g of triethylamine as a neutralizing agent after reaction for 1h, adding 300g of water after reaction for 10min, stirring and dispersing, finally, removing acetone under reduced pressure to obtain an adhesive emulsion, and mixing the adhesive emulsion with dried poplar powder according to a mass ratio of 1: 5, uniformly mixing and stirring, pouring into a mould, prepressing for 5s/mm at 1MPa and 70 ℃, heating to 130 ℃, keeping pressure and pressing for 5s/mm, then pressurizing to 10MPa, keeping the temperature and pressing for 10s/mm to obtain a plate blank, drying the plate blank, and finally compounding a panel on the plate blank.
The preparation method of the fluorine-containing soybean oil polyol comprises the following steps:
mixing trifluoroacetic acid 100g and cyclohexane 1000g uniformly, adding strong acid cation exchange resin 1g and epoxidized soybean oil 100g, heating to 40 deg.C, reacting for 6h, filtering to remove resin, and distilling the filtrate under reduced pressure to remove cyclohexane, excessive trifluoroacetic acid and water generated by the reaction.
Example 3:
a preparation method of a high-strength environment-friendly ecological plate comprises the following steps:
34.2g of fluorine-containing soybean oil polyol and 27.8g of isophorone diisocyanate are added into a flask provided with a nitrogen protection and condensation device, after uniformly stirring and mixing, adding two drops of dibutyl tin dilaurate, heating to 75 ℃ for reaction for 2h, adding 2.5g of polyvinyl alcohol phosphate and 3.2g of a composite chain extender consisting of diethyl dimethylolmalonate and dimethylolpropionic acid in a mass ratio of 1:1, heating to 85 ℃, reacting for 2h, cooling to 75 ℃, adding 1, 4-butanediol and a proper amount of acetone, adding acetone for reducing the viscosity of the system, cooling to 55 ℃ after reacting for 5h, adding an end-capping agent KH-5501.5 g, adding 2.7g of triethylamine as a neutralizing agent after reacting for 1.5h, adding 300g of water after reacting for 40min, stirring and dispersing, finally, removing the acetone under reduced pressure to obtain an adhesive emulsion, and mixing the adhesive emulsion with dried poplar powder according to a mass ratio of 1: 3, uniformly mixing and stirring, pouring into a mould, prepressing at 1.5MPa and 80 ℃ for 10s/mm, heating to 150 ℃, keeping pressure and pressing for 10s/mm, then pressurizing to 12MPa, keeping the temperature and pressing for 15s/mm to obtain a plate blank, drying the plate blank, and finally compounding a panel on the plate blank.
The preparation method of the fluorine-containing soybean oil polyol comprises the following steps:
mixing trifluoroacetic acid 100g and cyclohexane 1000g uniformly, adding strong acid cation exchange resin 1g and epoxidized soybean oil 100g, heating to 45 deg.C, reacting for 8h, filtering to remove resin, and distilling the filtrate under reduced pressure to remove cyclohexane, excessive trifluoroacetic acid and water generated by the reaction.
Example 4:
a preparation method of a high-strength environment-friendly ecological plate comprises the following steps:
34.2g of fluorine-containing soybean oil polyol and 27.8g of isophorone diisocyanate are added into a flask provided with a nitrogen protection and condensation device, after uniformly stirring and mixing, adding two drops of dibutyl tin dilaurate, heating to 70 ℃ for reaction for 2h, adding 2.5g of polyvinyl alcohol phosphate and 3.2g of a composite chain extender consisting of diethyl dimethylolmalonate and dimethylolpropionic acid in a mass ratio of 1:1, heating to 85 ℃, reacting for 1h, cooling to 75 ℃, adding 1, 4-butanediol and a proper amount of acetone, adding acetone for reducing the viscosity of the system, cooling to 50 ℃ after reacting for 5h, adding an end-capping agent KH-5501.5 g, adding 2.7g of triethylamine as a neutralizing agent after reacting for 1.5h, adding 300g of water after reacting for 20min, stirring and dispersing, finally, removing the acetone under reduced pressure to obtain an adhesive emulsion, and mixing the adhesive emulsion with dried poplar powder according to a mass ratio of 1: 3, uniformly mixing and stirring, pouring into a mould, prepressing for 5s/mm at 1.5MPa and 80 ℃, heating to 140 ℃, keeping pressure and pressing for 10s/mm, then pressurizing to 10MPa, keeping the temperature and pressing for 15s/mm to obtain a plate blank, drying the plate blank, and finally compounding a panel on the plate blank.
The preparation method of the fluorine-containing soybean oil polyol comprises the following steps:
mixing trifluoroacetic acid 100g and cyclohexane 1000g uniformly, adding strong acid cation exchange resin 1g and epoxidized soybean oil 100g, heating to 45 deg.C, reacting for 8h, filtering to remove resin, and distilling the filtrate under reduced pressure to remove cyclohexane, excessive trifluoroacetic acid and water generated by the reaction.
Example 5:
a preparation method of a high-strength environment-friendly ecological plate comprises the following steps:
34.2g of fluorine-containing soybean oil polyol and 27.8g of isophorone diisocyanate are added into a flask provided with a nitrogen protection and condensation device, after uniformly stirring and mixing, adding two drops of dibutyl tin dilaurate, heating to 70 ℃ for reaction for 2h, adding 2.5g of polyvinyl alcohol phosphate and 3.2g of a composite chain extender consisting of diethyl dimethylolmalonate and dimethylolpropionic acid in a mass ratio of 1:1, heating to 80 ℃ for reaction for 2h, cooling to 70 ℃, adding 1, 4-butanediol and a proper amount of acetone, adding acetone for reducing the viscosity of the system, cooling to 50 ℃ after reaction for 5h, adding an end-capping agent KH-5501.5 g, adding 2.7g of triethylamine as a neutralizing agent after reaction for 1.5h, adding 300g of water after reaction for 10min, stirring and dispersing, finally, removing acetone under reduced pressure to obtain an adhesive emulsion, and mixing the adhesive emulsion with dried poplar powder according to a mass ratio of 1: 5, uniformly mixing and stirring, pouring into a mould, prepressing for 5s/mm at 1MPa and 80 ℃, heating to 150 ℃, keeping pressure and pressing for 5s/mm, then pressurizing to 12MPa, keeping the temperature and pressing for 10s/mm to obtain a plate blank, drying the plate blank, and finally compounding a panel on the plate blank.
The preparation method of the fluorine-containing soybean oil polyol comprises the following steps:
mixing trifluoroacetic acid 100g and cyclohexane 1000g uniformly, adding strong acid cation exchange resin 1g and epoxidized soybean oil 100g, heating to 45 deg.C, reacting for 6h, filtering to remove resin, and distilling the filtrate under reduced pressure to remove cyclohexane, excessive trifluoroacetic acid and water generated by the reaction.
Example 6:
a preparation method of a high-strength environment-friendly ecological plate comprises the following steps:
34.2g of fluorine-containing soybean oil polyol and 27.8g of isophorone diisocyanate are added into a flask provided with a nitrogen protection and condensation device, after uniformly stirring and mixing, adding two drops of dibutyl tin dilaurate, heating to 75 ℃ for reaction for 1h, adding 2.5g of polyvinyl alcohol phosphate and 3.2g of a composite chain extender consisting of diethyl dimethylolmalonate and dimethylolpropionic acid in a mass ratio of 1:1, heating to 85 ℃, reacting for 1h, cooling to 75 ℃, adding 1, 4-butanediol and a proper amount of acetone, adding acetone for reducing the viscosity of the system, cooling to 55 ℃ after reacting for 3h, adding an end-capping agent KH-5501.5 g, adding 2.7g of triethylamine as a neutralizing agent after reacting for 1h, adding 300g of water after reacting for 40min, stirring and dispersing, finally, removing the acetone under reduced pressure to obtain an adhesive emulsion, and mixing the adhesive emulsion with dried poplar powder according to a mass ratio of 1: 3, uniformly mixing and stirring, pouring into a mould, prepressing at 1.5MPa and 70 ℃ for 10s/mm, heating to 130 ℃, keeping pressure and pressing for 10s/mm, then pressurizing to 10MPa, keeping the temperature and pressing for 15s/mm to obtain a plate blank, drying the plate blank, and finally compounding a panel on the plate blank.
The preparation method of the fluorine-containing soybean oil polyol comprises the following steps:
mixing trifluoroacetic acid 100g and cyclohexane 1000g uniformly, adding strong acid cation exchange resin 1g and epoxidized soybean oil 100g, heating to 40 deg.C, reacting for 8h, filtering to remove resin, and distilling the filtrate under reduced pressure to remove cyclohexane, excessive trifluoroacetic acid and water generated by the reaction.
Comparative example 1:
comparative example 1 is substantially the same as example 1 except that a commercially available soybean oil polyol (brand: Nikkai, model 4205) was used in place of the fluorinated soybean oil polyol prepared in the present invention.
Comparative example 2:
comparative example 2 is essentially the same as example 1 except that no polyvinyl alcohol phosphate was added.
Comparative example 3:
comparative example 3 is substantially the same as example 1 except that methanol is used as the end-capping agent instead of KH-550.
And (3) performance testing:
the slabs prepared by the methods of examples 1 to 6 and comparative examples 1 to 3 of the present invention were used as samples;
the samples were tested for internal bond strength, static flexural strength and modulus of elasticity with reference to GB/T4897-.
Testing the formaldehyde emission of the sample according to a dryer method in GB18580-2001, Formaldehyde emission limit in Artificial Board for interior decoration and finishing Material and products thereof;
reference is made to GB/T2406.2-2009 section 2 for determination of the burning behaviour of plastics by oxygen index method: room temperature test the limiting oxygen index of the test specimens.
The test results are shown in table 1 below:
table 1:
Figure BDA0003282189370000091
Figure BDA0003282189370000101
as can be seen from the above table 1, the ecological plate prepared by the invention has excellent mechanical properties, can meet the use requirements of daily household building materials, has low formaldehyde release amount, reaches the E0-grade national standard, has the advantages of environmental protection and no pollution, has a high limiting oxygen index, and has certain flame retardant property.
After immersing the test specimens in room temperature water for 24h, the test specimens were again tested for internal bond strength, static flexural strength and elastic modulus with reference to GB/T4897-:
table 2:
Figure BDA0003282189370000102
Figure BDA0003282189370000111
as can be seen from the above Table 2, the ecological plate prepared by the invention has excellent water resistance, and overcomes the defect that the polyurethane glue ecological plate is not water-resistant.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The preparation method of the high-strength environment-friendly ecological plate is characterized by comprising the following steps:
s1: uniformly mixing fluorine-containing vegetable oil polyol and isocyanate, adding an organic tin catalyst, heating to 70-75 ℃, reacting for 1-2h, adding polyvinyl alcohol phosphate and a composite chain extender, heating to 80-85 ℃, reacting for 1-2h, cooling to 70-75 ℃, adding 1, 4-butanediol and acetone, reacting for 3-5h, cooling to 50-55 ℃, adding a capping agent, reacting for 1-1.5h, adding a neutralizing agent, reacting for 10-40min, adding water, stirring for dispersing, and finally removing acetone under reduced pressure to obtain an adhesive emulsion;
s2: mixing and stirring the adhesive emulsion and the wood powder uniformly, prepressing for 5-10s/mm at 1-1.5MPa and 70-80 ℃, heating to 130-150 ℃, keeping pressure and pressing for 5-10s/mm, then pressurizing to 10-12MPa, keeping the temperature and pressing for 10-15s/mm to obtain a plate blank, and finally compounding a panel on the plate blank.
2. The method for preparing the high-strength eco-friendly board as claimed in claim 1, wherein the method for preparing the fluorine-containing vegetable oil polyol comprises the following steps:
mixing trifluoroacetic acid and cyclohexane uniformly, adding strong acid cation exchange resin and epoxy vegetable oil, heating to 40-45 ℃, reacting for 6-8h, filtering, and distilling the filtrate under reduced pressure to remove small molecular fraction.
3. The method for preparing a high-strength eco-friendly ecological plate as claimed in claim 2, wherein the epoxidized vegetable oil is at least one of epoxidized soybean oil, epoxidized castor oil, epoxidized palm oil, epoxidized peanut oil, epoxidized linseed oil, epoxidized corn oil and epoxidized rapeseed oil, preferably epoxidized soybean oil.
4. The method for preparing a high-strength eco-friendly ecological plate according to claim 1, wherein the isocyanate is at least one of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate, and lysine diisocyanate, preferably isophorone diisocyanate.
5. The method for preparing a high-strength eco-friendly ecological plate as claimed in claim 1, wherein the organotin catalyst is at least one of dibutyl tin dilaurate, di-n-octyl tin dilaurate, stannous octoate, dibutyl tin di (dodecyl thio) and dibutyl tin diacetate.
6. The method for preparing a high-strength eco-friendly ecological plate as claimed in claim 1, wherein the composite chain extender is a composition of diethyl dimethylolmalonate and dimethylolpropionic acid.
7. The method for preparing a high-strength eco-friendly ecological plate according to claim 1, wherein the capping agent is at least one of KH-550, KH-560 and KH-570, preferably KH-550.
8. The method of claim 1, wherein the neutralizer is at least one of triethylamine, triethanolamine, N-methyldiethanolamine, ammonia, sodium hydroxide, and potassium hydroxide.
9. The method for preparing the high-strength environment-friendly ecological plate as claimed in claim 1, wherein the mass ratio of the adhesive emulsion to the wood powder in the S2 is 1: 3-5.
10. The method for preparing a high-strength eco-friendly board as claimed in claim 1, wherein the temperature rise rate in S2 is 1-2 ℃/min, and the pressurization rate is 0.1-0.5 MPa/min.
CN202111136426.6A 2021-09-27 2021-09-27 Preparation method of high-strength environment-friendly ecological plate Pending CN113858376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111136426.6A CN113858376A (en) 2021-09-27 2021-09-27 Preparation method of high-strength environment-friendly ecological plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111136426.6A CN113858376A (en) 2021-09-27 2021-09-27 Preparation method of high-strength environment-friendly ecological plate

Publications (1)

Publication Number Publication Date
CN113858376A true CN113858376A (en) 2021-12-31

Family

ID=78991232

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111136426.6A Pending CN113858376A (en) 2021-09-27 2021-09-27 Preparation method of high-strength environment-friendly ecological plate

Country Status (1)

Country Link
CN (1) CN113858376A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011031523A (en) * 2009-08-03 2011-02-17 Eidai Co Ltd Woody board and method for manufacturing the same
CN104744651A (en) * 2015-02-15 2015-07-01 陕西科技大学 Environment-friendly fluorinated polyurethane-polyacrylate emulsion and preparation method thereof
CN105131237A (en) * 2015-08-20 2015-12-09 盐城工学院 Preparation method for plant oil-based rigid polyurethane foam plastics by all-water foaming
CN105925168A (en) * 2016-05-20 2016-09-07 武汉工程大学 Microencapsulated water-based fire retardant coating and preparation method thereof
CN106867441A (en) * 2016-12-30 2017-06-20 东莞市佳乾新材料科技有限公司 A kind of preparation method of inexpensive water-fast formaldehyde-free plywood
CN110408014A (en) * 2019-07-18 2019-11-05 浙江天成工程设计有限公司 A kind of preparation method of environment-friendly and high-performance aqueous alkide resin
CN112812712A (en) * 2021-02-25 2021-05-18 北华大学 Flame-retardant adhesive and application thereof
CN113024761A (en) * 2021-04-06 2021-06-25 黎朝力 Oil-resistant and wear-resistant synthetic resin and preparation method thereof
CN113172723A (en) * 2021-04-22 2021-07-27 湖南福森竹木科技有限公司 Preparation method of high-strength environment-friendly wood veneer
CN113214420A (en) * 2021-06-07 2021-08-06 东莞长联新材料科技股份有限公司 Vegetable oil-based polyacrylate anionic emulsion and preparation method and application thereof
CN113354769A (en) * 2021-06-07 2021-09-07 东莞长联新材料科技股份有限公司 Plant oil-based hydrophilic polymer aqueous dispersion and preparation method and application thereof

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011031523A (en) * 2009-08-03 2011-02-17 Eidai Co Ltd Woody board and method for manufacturing the same
CN104744651A (en) * 2015-02-15 2015-07-01 陕西科技大学 Environment-friendly fluorinated polyurethane-polyacrylate emulsion and preparation method thereof
CN105131237A (en) * 2015-08-20 2015-12-09 盐城工学院 Preparation method for plant oil-based rigid polyurethane foam plastics by all-water foaming
CN105925168A (en) * 2016-05-20 2016-09-07 武汉工程大学 Microencapsulated water-based fire retardant coating and preparation method thereof
CN106867441A (en) * 2016-12-30 2017-06-20 东莞市佳乾新材料科技有限公司 A kind of preparation method of inexpensive water-fast formaldehyde-free plywood
CN110408014A (en) * 2019-07-18 2019-11-05 浙江天成工程设计有限公司 A kind of preparation method of environment-friendly and high-performance aqueous alkide resin
CN112812712A (en) * 2021-02-25 2021-05-18 北华大学 Flame-retardant adhesive and application thereof
CN113024761A (en) * 2021-04-06 2021-06-25 黎朝力 Oil-resistant and wear-resistant synthetic resin and preparation method thereof
CN113172723A (en) * 2021-04-22 2021-07-27 湖南福森竹木科技有限公司 Preparation method of high-strength environment-friendly wood veneer
CN113214420A (en) * 2021-06-07 2021-08-06 东莞长联新材料科技股份有限公司 Vegetable oil-based polyacrylate anionic emulsion and preparation method and application thereof
CN113354769A (en) * 2021-06-07 2021-09-07 东莞长联新材料科技股份有限公司 Plant oil-based hydrophilic polymer aqueous dispersion and preparation method and application thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王涵颖等: "含氟植物油多元醇的制备及其对PU膜性能的影响", 《聚氨酯工业》 *

Similar Documents

Publication Publication Date Title
CN108129635B (en) Hydrophobic flame-retardant water-based curing agent and preparation method thereof
CN109400870B (en) Modified polyether resin and preparation method and application thereof
CN112225878B (en) High-alkali-resistance aqueous bi-component isocyanate curing agent and preparation method thereof
CN110746571B (en) APAO modified polyurethane waterborne resin and preparation method thereof
CN110450239B (en) Preparation method of novel formaldehyde-free impregnated membrane paper
CN111040715A (en) Single-component reaction type polyurethane hot melt adhesive and preparation method thereof
RU2012111319A (en) MOISTURE RESIN ALIPHATIC CURING, COATING COMPOSITIONS AND RELATED METHODS
CN112175162B (en) Modified waterborne polyurethane resin, preparation method and application thereof
CN112029471B (en) Polyurethane adhesive for glass magnesium composition and preparation method thereof
CN114134751A (en) Novel waterproof composite resin for impregnating surface layer of laminate wood floor and preparation method thereof
CN113858376A (en) Preparation method of high-strength environment-friendly ecological plate
CN109504267B (en) Organic silicon modified water-based composite wood coating and preparation method and application thereof
CN111073579B (en) High-initial-viscosity polyurethane adhesive for artificial board and preparation method and application thereof
CN115569089A (en) Matte nail polish gel and preparation method thereof
CN115595036A (en) Acrylic acid modified polyurethane dispersion for plastic-replacing gloss oil and preparation method thereof
CN110655861B (en) Epoxy tung oil-based waterborne polyurethane modified raw lacquer and preparation method thereof
KR20030064660A (en) polyurethane adhesive for flooring and process
CN114958280A (en) Bi-component rock plate adhesive and preparation method and application thereof
CN113861851A (en) Biomass aldehyde-free glue and preparation method thereof
CN109575770B (en) Preparation method of saturated urushiol-based functional coating
CN109627949B (en) Polyurethane texture antiskid terrace coating
CN103275667B (en) Active methylene group modified waterborne polyurethane adhesive
US7211621B2 (en) Polyurethaneurea resins with trialkoxysilane groups and processes for the production thereof
CN109735225B (en) High-gloss environment-friendly paint for woodware and preparation method thereof
CN117645859B (en) Formaldehyde-free environment-friendly wood veneer board and preparation process thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination