CN107083227A - A kind of single-component polyurethane adhesive and preparation method thereof - Google Patents

A kind of single-component polyurethane adhesive and preparation method thereof Download PDF

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Publication number
CN107083227A
CN107083227A CN201710227802.XA CN201710227802A CN107083227A CN 107083227 A CN107083227 A CN 107083227A CN 201710227802 A CN201710227802 A CN 201710227802A CN 107083227 A CN107083227 A CN 107083227A
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parts
weight
component polyurethane
polyurethane adhesive
adhesive according
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杜长海
丁威
王众举
马维聪
卢昌军
段维娟
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Changchun University of Technology
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Changchun University of Technology
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04Polyurethanes
    • C09J175/06Polyurethanes from polyesters
    • 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
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • 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
    • C08G18/48Polyethers
    • 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
    • C08G18/48Polyethers
    • C08G18/4825Polyethers containing two hydroxy groups
    • 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
    • C08G18/48Polyethers
    • C08G18/4833Polyethers containing oxyethylene units
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • C08K3/36Silica
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/06Non-macromolecular additives organic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08Macromolecular additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04Polyurethanes
    • C09J175/08Polyurethanes from polyethers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/003Additives being defined by their diameter
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to a kind of single-component polyurethane adhesive, belong to chemical adhesive field, it is constituted and parts by weight are:30 150 parts of isocyanates, 60 120 parts of polyalcohol, 0.01 1 parts of catalyst, 80 300 parts of solvent, 0.01 20 parts of chlorinated polypropylene, 0.01 0.2 parts of stabilizer, 0.01 3.5 parts of coupling agent, 0.01 10 parts of filler;Present invention also offers the preparation method of the single-component polyurethane adhesive;The adhesive property and the feature of environmental protection for the single-component polyurethane adhesive that the present invention is provided are preferable.

Description

A kind of single-component polyurethane adhesive and preparation method thereof
Technical field
The present invention relates to technical field of chemical adhesive, more particularly to a kind of single-component polyurethane adhesive and its preparation side Method.
Background technology
Adhesive for polyurethane refers to the gluing containing carbamate groups or/and isocyanate groups in strand Agent;Highly polar and chemical activity group and the material containing active hydrogen, foamed plastics, timber, skin in adhesive for polyurethane The material of any surface finish such as the porous materials such as leather, fabric, paper, ceramics and metal, glass, rubber, plastics has excellent Chemical adhesive power;Have that toughness is adjustable, technique for sticking is simple due to adhesive for polyurethane, splendid resistance to low temperature and stability Etc. feature, in recent years, at home and abroad as adhesive with fastest developing speed;According to the composition of adhesive for polyurethane, single group can be divided into Part adhesive for polyurethane and two-component polyurethane adhesive stick the class of agent two, and single-component polyurethane adhesive is relative to dual-component polyurethane For adhesive, have the advantages that processing is easy to use.
The diversity of adhesive for polyurethane and its excellent adhesion properties have been ready for solution for many bonding problems Method, and be particularly suitable for use in other types adhesive and can not be bonded or be bonded the place having any problem.With people's environmental consciousness Enhancing, Aqueous Polyurethane Adhesives become the focus of research, but are due to that the adhesive properties of Aqueous Polyurethane Adhesives is paid no attention to Think, slow drying speed, water resistance is not good, and oiliness One-component adhesive can not meet client couple mostly using benzene class as solvent An urgent demand of the feature of environmental protection, for this problem, we have proposed solution.
The content of the invention
The problem to be solved in the present invention is to provide a kind of single-component polyurethane adhesive, and its adhesive property is preferable, storage period Length, low, widely used cost, easy construction and pollution-free, nontoxic, and its preparation technology is provided.
To achieve the above object, the technical scheme is that:By isocyanates 30-150 parts by weight, polyalcohol 60-120 Parts by weight, catalyst 0.01-1 parts by weight, solvent 80-300 parts by weight, chlorinated polypropylene 0.01-20 parts by weight, stabilizer 0.01-0.2 parts by weight, coupling agent 0.01-3.5 parts by weight, filler 0.01-10 parts by weight composition.
Preferably, One-component adhesive is by isocyanate-terminated, and its NCO% content is 1-14%, preferably 2-13%.
Preferably, the polyalcohol is any in copolyester polyols, PPG, polyethylene glycol, polypropylene glycol Kind or more than one mixtures constituted by any part by weight.
Preferably, the isocyanates be toluene di-isocyanate(TDI), isophorone diisocyanate, modified MDI, liquefied mdi, Any of HDI, methyl diphenylene diisocyanate, poly methylene poly phenyl poly isocyanate or more than one by any The mixture that part by weight is constituted.
Preferably, the catalyst is selected from dibutyl tin laurate, stannous octoate, organo-bismuth, 2,2- dimorpholines base two Any of ethylether or more than one mixtures constituted by any part by weight.
Preferably, the solvent is in acetone, ethyl acetate, dimethyl carbonate, dichloromethane, dichloropropane, hexamethylene Any or more than one mixtures for being constituted by any part by weight.
Preferably, the chlorinty of the chlorinated polypropylene is 20-67%.
Preferably, the stabilizer is any of chlorobenzoyl chloride, acetic acid, formic acid, hydrochloric acid, nitric acid, phosphoric acid or one The mixture constituted more than kind by any part by weight.
Preferably, the filler be any of nano silicon, micron silica or more than one by appointing The mixture that meaning part by weight is constituted.
Preferably, its step is as follows:
(1)It is that more than 0.09MPa, temperature are that under conditions of 100-110 DEG C, the polyalcohol of 60-120 parts by weight is taken out in vacuum Vaccum dewatering 2-3h;
(2)50-80 DEG C is cooled to, the silica of 1-10 parts by weight and the solvent of 80-150 parts by weight, high-speed stirred is added 30min;
(3)60-80 DEG C is warming up to, the isocyanates of 30-150 parts by weight and the catalyst of 0.02-1 parts by weight is added, stirring is anti- 1-3h is answered, the solvent of 80-150 parts by weight and the chlorinated polypropylene of 0.01-20 parts by weight is added, is stirred until homogeneous;
(4)30-50 DEG C is cooled to, the stabilizer of 0.02-0.2 parts by weight and the coupling agent of 0.01-3.5 parts by weight, mixing is added Discharged after uniform, sealing preserve obtains single-component polyurethane adhesive.
Performance test is carried out to single-component polyurethane adhesive produced by the present invention, cut according to GB/T7124-2008 Shearing stress is tested, and tensile strength test is carried out according to GB/T 528-2009, and feature of environmental protection test is carried out according to GB18583-2008.
Single-component polyurethane adhesive prepared using the present invention and preparation method thereof, raw material is sufficient, and production cost is low, work Skill is simple, and obtained product adhesive property is good, not only solves environmental issue, and meet the demand in market.
Brief description of the drawings
The test result of the shear strength of Fig. 1 embodiments 1-7 and commercially available prod, tensile strength and the feature of environmental protection.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
Single-component polyurethane adhesive, its component and parts by weight are:60 parts of isocyanates(Isocyanates is diphenyl methane Diisocyanate), 120 parts of polyalcohols(Polyalcohol is copolyester polyols, and number-average molecular weight is 3500), 0.5 part of catalyst(Urge Agent is dibutyl tin laurate), 300 parts of solvents(Solvent is ethyl acetate and dimethyl carbonate by weight 1:1 mixing Thing), 14.5 parts of chlorinated polypropylene, 0.01 part of stabilizer(Stabilizer is phosphoric acid), 2.48 parts of coupling agents(Coupling agent is KH550)、1 Part filler(Filler is particle diameter 15nm silica).
The step of its preparation method, is as follows:
(1)It is that more than 0.09MPa, temperature are under conditions of 108 DEG C, the polyalcohol of 120 parts by weight to be vacuumized and removed in vacuum Water 2.6h;
(2)50 DEG C are cooled to, the silica of 1 parts by weight and the solvent of 150 parts by weight, high-speed stirred 30min is added
(3)70 DEG C are warming up to, the isocyanates of 60 parts by weight and the catalyst of 0.5 parts by weight is added, stirring reaction 2.5h is added The chlorinated polypropylene of the solvent of 150 parts by weight and 14.5 parts by weight, is stirred until homogeneous;
(4)35 DEG C are cooled to, the stabilizer of 0.01 parts by weight and the coupling agent of 2.85 parts by weight is added, discharged after being well mixed, Sealing preserve, obtains single-component polyurethane adhesive.
Embodiment 2
Single-component polyurethane adhesive, its component and parts by weight are:64.5 part isocyanates(Isocyanates is polymethylene Polyphenyl polyisocyanate), 75 parts of polyalcohols(Polyalcohol is polypropylene glycol, and number-average molecular weight is 1000), 0.075 part of catalyst (Catalyst is organo-bismuth), 140 parts of solvents(Solvent is dimethyl carbonate), 8.4 parts of chlorinated polypropylene, 0.01 part of stabilizer(Surely Agent is determined for phosphoric acid), 1.45 parts of coupling agents(Coupling agent is KH560), 1.125 parts of fillers(Filler is particle diameter 15nm titanium dioxide Silicon).
The step of its preparation method, is as follows:
(1)It is that more than 0.09MPa, temperature are under conditions of 105 DEG C, the polyalcohol of 100 parts by weight to be vacuumized and removed in vacuum Water 3h;
(2)60 DEG C are cooled to, the silica of 1.125 parts by weight and the solvent of 60 parts by weight, high-speed stirred 30min is added;
(3)It is warming up to 80 DEG C, adds the isocyanates of 64.5 parts by weight and the catalyst of 0.075 parts by weight, stirring reaction 1.8h, The solvent of 80 parts by weight and the chlorinated polypropylene of 8.4 parts by weight are added, is stirred until homogeneous;
(4)30 DEG C are cooled to, the stabilizer of 0.01 parts by weight and the coupling agent of 1.45 parts by weight is added, discharged after being well mixed, Sealing preserve, obtains single-component polyurethane adhesive.
Embodiment 3
Single-component polyurethane adhesive, its component and parts by weight are:86 parts of isocyanates(Isocyanates is liquefied mdi)、 100 parts of polyalcohols(Polyalcohol is PPG, and number-average molecular weight is 1000), 0.1 part of catalyst(Catalyst is sub- for octanoic acid Tin), 186 parts of solvents(Solvent is ethyl acetate and hexamethylene by weight 3:1 mixture), 11.21 parts of chlorinated polypropylenes, 0.01 part of stabilizer(Stabilizer is phosphoric acid), 1.92 parts of coupling agents(Coupling agent is KH550), 1.5 parts of fillers(Filler is particle diameter 50nm silica).
The step of its preparation method, is as follows:
(1)It is that more than 0.09MPa, temperature are under conditions of 110 DEG C, the polyalcohol of 100 parts by weight to be vacuumized and removed in vacuum Water 2-3h;
(2)50 DEG C are cooled to, the silica of 1.5 parts by weight and the solvent of 93 parts by weight, high-speed stirred 30min is added;
(3)70 DEG C are warming up to, the isocyanates of 86 parts by weight and the catalyst of 0.1 parts by weight is added, stirring reaction 2.5h is added The chlorinated polypropylene of the solvent of 93 parts by weight and 11.21 parts by weight, is stirred until homogeneous;
(4)35 DEG C are cooled to, the stabilizer of 0.01 parts by weight and the coupling agent of 1.92 parts by weight is added, discharged after being well mixed, Sealing preserve, obtains single-component polyurethane adhesive.
Embodiment 4
Single-component polyurethane adhesive, its component and parts by weight are:57 parts of isocyanates(Isocyanates is modified MDI)、 67 parts of polyalcohols(Polyalcohol is polypropylene glycol, and number-average molecular weight is 1000), 0.07 part of catalyst(Catalyst is 2,2- dimorpholines Base Anaesthetie Ether), 124 parts of solvents(Solvent is ethyl acetate), 7.47 parts of chlorinated polypropylene, 0.01 part of stabilizer(Stabilizer is Phosphoric acid), 1.27 parts of coupling agents(Coupling agent is KH560), 1 part of filler(Filler is the silica of 3 μm of particle diameter).
The step of its preparation method, is as follows:
(1)It is that more than 0.09MPa, temperature are under conditions of 109 DEG C, the polyalcohol of 100 parts by weight to be vacuumized and removed in vacuum Water 2h;
(2)68 DEG C are cooled to, the silica of 1 parts by weight and the solvent of 60 parts by weight, high-speed stirred 30min is added;
(3)75 DEG C are warming up to, the isocyanates of 86 parts by weight and the catalyst of 0.07 parts by weight is added, stirring reaction 2h is added The chlorinated polypropylene of the solvent of 64 parts by weight and 7.47 parts by weight, is stirred until homogeneous;
(4)33 DEG C are cooled to, the stabilizer of 0.01 parts by weight and the coupling agent of 1.27 parts by weight is added, discharged after being well mixed, Sealing preserve, obtains single-component polyurethane adhesive.
Embodiment 5
Single-component polyurethane adhesive, its component and parts by weight are:129 parts of isocyanates(Isocyanates is polymethylene Polyphenyl polyisocyanate), 75 parts of polyalcohols(Polyalcohol is PPG, and number-average molecular weight is 2000), 0.15 part of catalysis Agent(Catalyst is dibutyl tin laurate), 279 parts of solvents(Solvent is hexamethylene and dimethyl carbonate by weight 1:4 Mixture), 14.6 parts of chlorinated polypropylene, 0.015 part of stabilizer(Stabilizer is phosphoric acid), 2.5 parts of coupling agents(Coupling agent is KH550), 4.5 parts of fillers(Filler is particle diameter 15nm silica).
The step of its preparation method, is as follows:
(1)It is that more than 0.09MPa, temperature are that under conditions of 103 DEG C, the polyalcohol of 75 parts by weight is vacuumized into water removal in vacuum 2.5h;
(2)68 DEG C are cooled to, the silica of 4.5 parts by weight and the solvent of 150 parts by weight, high-speed stirred 30min is added;
(3)75 DEG C are warming up to, the isocyanates of 129 parts by weight and the catalyst of 0.15 parts by weight is added, stirring reaction 2h is added The chlorinated polypropylene of the solvent of 129 parts by weight and 14.6 parts by weight, is stirred until homogeneous;
(4)33 DEG C are cooled to, the stabilizer of 0.015 parts by weight and the coupling agent of 2.5 parts by weight is added, discharged after being well mixed, Sealing preserve, obtains single-component polyurethane adhesive.
Embodiment 6
Single-component polyurethane adhesive, its component and parts by weight are:103.2 parts of isocyanates(Isocyanates is many methylenes Quito polyphenyl polyisocyanate), 120 parts of polyalcohols(Polyalcohol is polyethylene glycol, and number-average molecular weight is 1000), 0.12 part of catalysis Agent(Catalyst is organo-bismuth), 223.2 parts of solvents(Solvent is ethyl acetate and dimethyl carbonate by weight 2:1 mixing Thing), 13.5 parts of chlorinated polypropylene, 0.012 part of stabilizer(Stabilizer is phosphoric acid), 2.32 parts of coupling agents(Coupling agent is KH550)、 4.8 parts of fillers(Filler is particle diameter 15nm silica).
The step of its preparation method, is as follows:
(1)It is that more than 0.09MPa, temperature are under conditions of 109 DEG C, the polyalcohol of 100 parts by weight to be vacuumized and removed in vacuum Water 2.3h;
(2)68 DEG C are cooled to, the silica of 4.8 parts by weight and the solvent of 123.2 parts by weight, high-speed stirred 30min is added;
(3)It is warming up to 75 DEG C, adds the isocyanates of 103.2 parts by weight and the catalyst of 0.12 parts by weight, stirring reaction 2h, plus Enter the solvent of 100 parts by weight and the chlorinated polypropylene of 13.5 parts by weight, be stirred until homogeneous;
(4)33 DEG C are cooled to, the stabilizer of 0.012 parts by weight and the coupling agent of 2.32 parts by weight is added, discharged after being well mixed, Sealing preserve, obtains single-component polyurethane adhesive.
Embodiment 7
Single-component polyurethane adhesive, its component and parts by weight are:137.6 parts of isocyanates(Isocyanates is many methylenes Quito polyphenyl polyisocyanate), 80 parts of polyalcohols(Polyalcohol is polypropylene glycol, and number-average molecular weight is 2000), 0.16 part of catalysis Agent(Catalyst is dibutyl tin laurate), 297.6 parts of solvents(Solvent is ethyl acetate), 15.5 parts of chlorinated polypropylenes, 0.016 part of stabilizer(Stabilizer is phosphoric acid), 2.67 parts of coupling agents(Coupling agent is KH550), 2.4 parts of fillers(Filler is particle diameter 6 μm silica).
The step of its preparation method, is as follows:
(1)It is that more than 0.09MPa, temperature are under conditions of 106 DEG C, the polyalcohol of 100 parts by weight to be vacuumized and removed in vacuum Water 3h;
(2)68 DEG C are cooled to, the silica of 2.4 parts by weight and the solvent of 197.6 parts by weight, high-speed stirred 30min is added;
(3)It is warming up to 75 DEG C, adds the isocyanates of 137.6 parts by weight and the catalyst of 0.16 parts by weight, stirring reaction 2h, plus Enter the solvent of 100 parts by weight and the chlorinated polypropylene of 15.5 parts by weight, be stirred until homogeneous;
(4)33 DEG C are cooled to, the stabilizer of 0.016 parts by weight and the coupling agent of 2.67 parts by weight is added, discharged after being well mixed, Sealing preserve, obtains single-component polyurethane adhesive.
The single-component polyurethane adhesive of the present invention is can be seen that from the test result of embodiment 1-7 and commercially available prod With good adhesive property and the feature of environmental protection.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this Among the right of invention.

Claims (11)

1. a kind of single-component polyurethane adhesive, it is characterised in that:By isocyanates 30-150 parts by weight, polyalcohol 60-120 weights Measure part, catalyst 0.01-1 parts by weight, solvent 80-300 parts by weight, chlorinated polypropylene 0.01-20 parts by weight, stabilizer 0.01- 0.2 parts by weight, coupling agent 0.01-3.5 parts by weight, filler 0.01-10 parts by weight composition.
2. single-component polyurethane adhesive according to claim 1, it is characterised in that:One-component adhesive is by isocyanates End-blocking, its NCO% content is 1-14%, preferably 2-13%.
3. the single-component polyurethane adhesive according to claim 1 to 2, it is characterised in that:The polyalcohol is copolyesters Any of polyalcohol, PPG, polyethylene glycol, polypropylene glycol or more than one constituted by any part by weight Mixture.
4. the single-component polyurethane adhesive according to claims 1 to 3, it is characterised in that:The isocyanates is toluene Diisocyanate, isophorone diisocyanate, modified MDI, liquefied mdi, HDI, methyl diphenylene diisocyanate, polymethylene Any of polyphenyl polyisocyanate or more than one mixtures constituted by any part by weight.
5. the single-component polyurethane adhesive according to Claims 1-4, it is characterised in that:The catalyst is selected from February Any of dilaurylate, stannous octoate, organo-bismuth, 2,2- dimorpholine base Anaesthetie Ethers or more than one by any The mixture that part by weight is constituted.
6. the single-component polyurethane adhesive according to claim 1 to 5, it is characterised in that:The solvent be ethyl acetate, Any of dimethyl carbonate, dichloropropane, hexamethylene or more than one mixtures constituted by any part by weight.
7. the single-component polyurethane adhesive according to claim 1 to 6, it is characterised in that:The chlorinated polypropylene contains Chlorine dose is 20-67%.
8. the single-component polyurethane adhesive according to claim 1 to 7, it is characterised in that:The stabilizer is benzoyl Any of chlorine, acetic acid, formic acid, hydrochloric acid, nitric acid, phosphoric acid or more than one mixing constituted by any part by weight Thing.
9. the single-component polyurethane adhesive according to claim 1 to 8, it is characterised in that:Described coupling agent is KH550 Any of or KH560.
10. the single-component polyurethane adhesive according to claim 1 to 9, it is characterised in that:The filler is nano-silica Any of SiClx, micron silica or more than one mixtures constituted by any part by weight.
11. a kind of preparation method of single-component polyurethane adhesive according to claim 1 to 10 any one, its feature It is, its step is as follows:
(1)It is that more than 0.09MPa, temperature are that under conditions of 100-110 DEG C, the polyalcohol of 60-120 parts by weight is taken out in vacuum Vaccum dewatering 2-3h;
(2)50-80 DEG C is cooled to, the silica of 0.01-10 parts by weight and the solvent of 80-150 parts by weight, high-speed stirred is added 30min;
(3)60-80 DEG C is warming up to, the isocyanates of 30-150 parts by weight and the catalyst of 0.01-1 parts by weight is added, stirring is anti- 1-3h is answered, the solvent of 80-150 parts by weight and the chlorinated polypropylene of 0.01-20 parts by weight is added, is stirred until homogeneous;
(4)It is cooled to 30-60 DEG C, the stabilizer of 0.01-0.2 parts by weight and the coupling agent of 0.01-3.5 parts by weight are well mixed After discharge, sealing preserve obtains single-component polyurethane adhesive.
CN201710227802.XA 2017-04-10 2017-04-10 A kind of single-component polyurethane adhesive and preparation method thereof Pending CN107083227A (en)

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CN109355054A (en) * 2018-08-30 2019-02-19 中山市康和化工有限公司 A kind of polyurethane adhesive and preparation method thereof for Key works Drug packing PE film
CN113046013A (en) * 2019-12-26 2021-06-29 辽宁红山化工股份有限公司 Preparation method of modified lexan glue with high bonding strength and special purpose for wood bonding
CN113372871A (en) * 2021-07-05 2021-09-10 英克化工科技(太仓)有限公司 Single-component solvent-free adhesive and preparation method thereof

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108396586A (en) * 2018-04-02 2018-08-14 郑州博物馆 A kind of reinforcing liquid reinforced for paper relics
CN108396586B (en) * 2018-04-02 2020-09-08 郑州博物馆 Reinforcing liquid for reinforcing paper cultural relics
CN109355054A (en) * 2018-08-30 2019-02-19 中山市康和化工有限公司 A kind of polyurethane adhesive and preparation method thereof for Key works Drug packing PE film
CN113046013A (en) * 2019-12-26 2021-06-29 辽宁红山化工股份有限公司 Preparation method of modified lexan glue with high bonding strength and special purpose for wood bonding
CN113046013B (en) * 2019-12-26 2023-09-19 辽宁红山化工股份有限公司 Preparation method of modified lecna gum with high bonding strength and special for wood bonding
CN113372871A (en) * 2021-07-05 2021-09-10 英克化工科技(太仓)有限公司 Single-component solvent-free adhesive and preparation method thereof

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