CN105925236A - Polyurethane adhesive for compositing two-component PVC plate - Google Patents
Polyurethane adhesive for compositing two-component PVC plate Download PDFInfo
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- CN105925236A CN105925236A CN201610351738.1A CN201610351738A CN105925236A CN 105925236 A CN105925236 A CN 105925236A CN 201610351738 A CN201610351738 A CN 201610351738A CN 105925236 A CN105925236 A CN 105925236A
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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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6662—Compounds of group C08G18/42 with compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6696—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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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
- 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
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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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
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- Health & Medical Sciences (AREA)
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Abstract
The invention discloses a polyurethane adhesive for compositing a two-component PVC plate. The adhesive is composed of a component A and a component B according to the mass ratio of (1-4):1, and the component A is composed of, by weight, 10%-25% of castor oil, 10%-20% of polyether polyol, 1%-5% of coupling agent, 0.5%-2.5% of fumed silica, 30%-60% of filler and 5%-10% of drying agent; the component B is composed of, by weight, 50%-80% of isocyanate, 5%-15% of polyether polyol, 10%-30% of polyester polyol and 1%-4% of chain extender. A preparation method of the polyurethane adhesive for compositing the two-component PVC plate comprises the following steps of preparation of the component A, preparation of the component B and mixing of the component A and the component B. The polyurethane adhesive is used for bonding PVC with a plate. The polyurethane adhesive has the advantages of being free of solvent evaporation, large in initial adhesion, excellent in adhesive force on PVC, high in strength, wide in environmental adaptability, long in storage life, high in stability, environmentally friendly in raw material, capable of obtaining the raw materials conveniently and the like.
Description
Technical field
The present invention relates to adhesive area, specifically a kind of double-component PVC board polyurethane adhesive for compounding.
Background technology
Polyurethane adhesive refer in strand containing carbamate groups (-NHCOO-) or NCO (-
NCO) adhesive.Polyurethane adhesive has a following characteristic always: higher reactivity, to containing active hydrogen
Or absorptive base material has higher adhesive strength, such as metal, timber, rubber, fiber, timber, leather, plastics etc.,
Both can be with cold curing, it is also possible to be heating and curing, easily form the structure of crosslinking, glue-line hardness is the highest, facility simple to operate,
Resistance to low temperature is excellent, and pliability is good, and peel strength is high, and impact resistance, vibration resistance, fatigue performance is good.
PVC board because dicoration is strong, environmental friendly regenerated, waterproof, antibacterial, comfortable foot feeling, sound-absorbing, wear-resisting, scratch-resistant, height
Elastic and superpower shock proof feature, is widely used in office, school, hospital, pharmaceutical factory, sports center, public place of entertainment
Public place and the decorations of family, such as floor, skirting, furred ceiling, family such as conjunction, shopping square, dining room, hotel
Tool and kitchen guarding etc..It is PVC/ glue-line/wood-plastic board/glue-line/cork sheet or muting pad that PVC board relates to the place of gluing.
PVC is the plastics that a kind of surface polarity is low, adds man-hour owing to adding more plasticizer, and time length can migrate oozes out,
More increase bonding difficulty；In addition PVC is two kinds of different materials with wood-plastic board/cork sheet, and hot expansion property has and compares
Big difference, and PVC has the advantages that chill heat is soft, if bonding loosely can cause composite plate to deform, even comes unglued.
Relevant double component solvent-free type polyurethane glue is not yet found to be applied to the patent report that PVC board is compound, market at present
Be presently used adhesive based on solvent-borne type, serious environment pollution and persistently endanger health of human body；And solvent can corrode
With swelling PVC film, adhesion strength is caused to reduce, affect product size stability.
Summary of the invention
It is an object of the invention to provide a kind of double-component PVC board polyurethane adhesive for compounding, to solve above-mentioned background skill
The problem proposed in art.
For achieving the above object, the present invention provides following technical scheme:
A kind of double-component PVC board polyurethane adhesive for compounding, is 1～4:1 group by component A and B component in mass ratio
Becoming, described component A comprises the following raw materials by weight percent: Oleum Ricini 10～25%, polyether polyol 10～20%,
Coupling agent 1～5%, aerosil 0.5～2.5%, filler 30～60%, desiccant 5～10%；Described B component by
The raw material composition of following percentage by weight: isocyanates 50～80%, polyether polyol 5～15%, PEPA 10～30%,
Chain extender 1～4%.
As the further scheme of the present invention: be made up of for 3:1 in mass ratio component A and B component.
As the present invention further scheme: in described component A, Oleum Ricini is one-level refining castor oil, its hydroxyl value be 160～
170mg KOH/g, degree of functionality 2.7；In described component A, aerosil is the aerosil of hydrophobic type, specific surface
Long-pending 120mg2/g.
As the present invention further scheme: in described component A, polyether polyol is polyoxypropyleneglycol, polyoxygenated third
One or more in alkene triol, PTMG, its molecular weight is 1000～3000g/mol；Described component A
Middle coupling agent is one or more in silane coupler, titanate coupling agent, aluminate coupling agent, preferably silane coupler
And titanate coupling agent；In described component A, filler is calcium carbonate, silica flour, titanium dioxide, silicon powder, barite, Talcum
One or more in powder or glass fibre.
As the present invention further scheme: in described component A, polyether polyol is polyoxypropyleneglycol；Described A group
In point, coupling agent is the silane coupler of tertiary-amino-containing；In described component A, filler is calcium carbonate, and size is 1～5 μm,
Moisture control is below 0.2%.
As the present invention further scheme: in described component A, desiccant is 4A type molecular sieve.
As the present invention further scheme: in described B component, polyisocyanates is toluene di-isocyanate(TDI), diphenyl Asia
In methyl diisocyanate, polymethylene multi-phenenyl isocyanate, isophorone diisocyanate two kinds and more than；Described
One during polyether polyol is polyoxypropyleneglycol, polypropylene oxide triol, PTMG in B component or
Several；In described B component, PEPA is ethanedioic acid kind polyester polyhydric alcohol, adipic acid kind polyester polyhydric alcohol, poly-several lactones
One or more in polyhydric alcohol, PCDL；In described B component, chain extender is 1,2-ethylene glycol, 1,3-the third two
One or more in alcohol, 1,4-butanediol, 1,5-pentanediol, 1,6-HD, neopentyl glycol, trimethylolpropane.
As the present invention further scheme: in described B component polyisocyanates be MDI and
Polymethylene multi-phenenyl isocyanate；In described B component, polyether polyol is PTMG and/or polyoxygenated third
Alkene triol, its molecular weight is respectively 500～1500g/mol and 300～500g/mol；In described B component, PEPA is
Polyadipate kind polyester polyhydric alcohol, its molecular weight is 2000～4000g/mol, degree of functionality 2；Chain extender in described B component
For 1,4-butanediol.
As the present invention further scheme: the preparation method of described double-component PVC board polyurethane adhesive for compounding,
Comprise the following steps:
(1) preparation of component A: by formula by Oleum Ricini, polyether polyol, coupling agent, aerosil, filler,
After desiccant mix homogeneously, 100～130 DEG C ,-0.096Mpa dehydration less than below 500ppm, obtain A group to moisture
Point；
(2) preparation of B component: by formula by isocyanates, polyether polyol, PEPA, chain extender mix homogeneously
After, at 80～100 DEG C, reacting 4～6h, NCO% is 10～25% in control, prepares B component；
(3) A and the mixing of B component: above-mentioned prepared component A and B component are individually packed, press in use 1:1～
The weight ratio of 4:1 is sufficiently mixed uniformly.
As the present invention further scheme: described double-component PVC board polyurethane adhesive for compounding for PVC and
The bonding of sheet material.
The double-component special polyurethane adhesive of composite PVC sheet material of the present invention, based on being Oleum Ricini, mating part polyethers is many
Unit's alcohol, PEPA and chain extender, coupling agent, aerosil, filler and desiccant, press A, B component
Mixing cured according to certain ratio, after cold curing 7 days, room temperature is peeled off test wood-plastic board/PVC and is destroyed completely.
Compared with prior art, the invention has the beneficial effects as follows: by the present invention in that with Oleum Ricini, polyether polyol, polyester
The raw materials such as polyhydric alcohol and chain extender, coupling agent, aerosil, filler and desiccant, Oleum Ricini, polyether polyol,
PEPA, chain extender and filler ensure that the intensity that material own is higher；Oleum Ricini green is easy to get；Coupling agent improves material
Material is to the adhesive force by viscous base material, it is ensured that the dimensional stability of goods；Aerosil can well improve touching of material
Degeneration, meets different construction requirements, prevents gummosis；Solvent-free, discharge without other toxic and harmful, comply fully with state
Family's decorating and renovating material standard.
Accompanying drawing explanation
Fig. 1 is the structural representation of double-component PVC board polyurethane adhesive for compounding.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly and completely
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under not making creative work premise
Execute example, broadly fall into the scope of protection of the invention.
Embodiment 1
The double-component special polyurethane adhesive of composite PVC sheet material of the present embodiment is specific as follows:
Component A: weigh Oleum Ricini 18kg, polyether polyol 12kg, silane coupler 5kg gas in the reactor of 200L
Aerosil 1kg, after calcium carbonate 56kg, 4A type molecular sieve 8kg mix homogeneously, at 100～130 DEG C ,-0.096Mpa
It is dehydrated to moisture less than below 500ppm, discharging.
B component: weigh polyether polyol 12kg, PEPA 18kg, BDO in the reactor of 200L
2kg, MDI and polymethylene multi-phenenyl isocyanate 50kg and 18kg respectively, at 80～100 DEG C
Lower reaction 4～6h, NCO% is 10～25% in control, discharging.
Being mixed by A, B component 3:1 in mass ratio, make rustless steel and shear exemplar, condition of cure is that room temperature was surveyed after 3 days
Examination shear strength (GB/T7124-2008)；Using PVC/ sheet material as test sample, condition of cure is that room temperature was surveyed after 3 days
Examination peel strength (GB/T1457-2005).
Embodiment 2
The double-component special polyurethane adhesive of composite PVC sheet material of the present embodiment is specific as follows:
Component A: weigh Oleum Ricini 12kg in the reactor of 200L, polyether polyol 18kg, silane coupler 3kg,
Aerosil 2kg, after calcium carbonate 55kg, 4A type molecular sieve 10kg mix homogeneously, at 100～130 DEG C ,-0.096Mpa
It is dehydrated to moisture less than below 500ppm, discharging.
B component: weigh polyether polyol 5kg, PEPA 15kg, BDO in the reactor of 200L
4kg, MDI and polymethylene multi-phenenyl isocyanate 56kg and 18kg respectively, at 80～100 DEG C
Lower reaction 4～6h, NCO% is 10～25% in control, discharging.
Being mixed by A, B component 2:1 in mass ratio, make rustless steel and shear exemplar, condition of cure is that room temperature was surveyed after 3 days
Examination shear strength (GB/T7124-2008)；Using PVC/ sheet material as test sample, condition of cure is that room temperature was surveyed after 3 days
Examination peel strength (GB/T1457-2005).
Embodiment 3
The double-component special polyurethane adhesive of composite PVC sheet material of the present embodiment is specific as follows:
Component A: weigh Oleum Ricini 15kg in the reactor of 200L, polyether polyol 15kg, silane coupler 5kg,
Aerosil 2kg, after calcium carbonate 55kg, 4A type molecular sieve 8kg mix homogeneously, at 100～130 DEG C ,-0.096Mpa
It is dehydrated to moisture less than below 500ppm, discharging.
B component: weigh polyether polyol 6kg, PEPA 18kg, BDO in the reactor of 200L
3kg, MDI and polymethylene multi-phenenyl isocyanate 58kg and 15kg respectively, at 80～100 DEG C
Lower reaction 4～6h, NCO% is 10～25% in control, discharging.
Being mixed by A, B component 3:1 in mass ratio, make rustless steel and shear exemplar, condition of cure is that room temperature was surveyed after 3 days
Examination shear strength (GB/T7124-2008)；Using PVC/ sheet material as test sample, condition of cure is that room temperature was surveyed after 3 days
Examination peel strength (GB/T1457-2005).
Comparative example 1
Use solvent-based adhesive conventional on market as a comparison case, belong to solvent-based two-component polyurethane adhesive.
Being mixed by A, B component 5:1 in mass ratio, make rustless steel and shear exemplar, condition of cure is that room temperature was surveyed after 3 days
Examination shear strength (GB/T7124-2008)；Using PVC/ sheet material as test sample, condition of cure is that room temperature was surveyed after 3 days
Examination peel strength (GB/T1457-2005).
Embodiment 1～3 and the test performance result of comparative example 1 as shown in table 1:
Table 1
Being compared with comparative example 1 by embodiment in table 11,2,3, the double component solvent-free type polyurethane of the present invention is gluing
Agent shear strength and peel strength are all significantly higher than solvent-based two-component polyurethane adhesive, and do not have volatile solvent, odorlessness,
Pollution-free, do not corrode and swelling goods.
Embodiment 1 and comparative example 1 are done high temperature cohesive strength contrast, and actual conditions is: use PVC and wood-plastic board as base
Material, bonds by embodiment 1 and comparative example 1 respectively, is placed on 80 DEG C of baking oven constant temperature 6h, peels off immediately after taking-up after solidification,
Test result is as shown in Figure 1.
In Fig. 1, left is that comparative example 1 destroys interface, and right is that embodiment 1 destroys interface, and white portion is PVC base
Destroyed place.From Fig. 1 photo, the white portion of right PVC base is much larger than the white area of left PVC base
Territory, it was demonstrated that embodiment 1 the most still keeps splendid adhesive strength, can glue by PVC base large area.
We use the index of PVC weight-loss ratio to contrast simultaneously: by two kinds of products application in PVC board, Celsius 80
Under the conditions of degree, constant temperature 6 hours, peel off after taking-up at once, and test, because the bonding weight-loss ratio causing PVC to destroy, uses this to refer to
Mark contrast two product adhesive strength at high temperature, is specifically shown in Table 2.
Table 2
| Product | PVC weight-loss ratio (%) |
| Embodiment 1 | 30.57 |
| Comparative example 1 | 10.07 |
It is seen from the above data that at high temperature peel off, due to the bonding effect of embodiment product, the destruction of PVC base
Degree is use comparative example product 3 times.Illustrate that the adhesive strength of at high temperature embodiment is considerably beyond comparative example.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and do not carrying on the back
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only comprises
One independent technical scheme, this narrating mode of description is only the most for clarity sake, and those skilled in the art should be by
Description is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
Claims (10)
1. a double-component PVC board polyurethane adhesive for compounding, it is characterized in that, it is 1～4:1 to form in mass ratio by component A and B component, described component A comprises the following raw materials by weight percent: Oleum Ricini 10～25%, polyether polyol 10～20%, coupling agent 1～5%, aerosil 0.5～2.5%, filler 30～60%, desiccant 5～10%；Described B component comprises the following raw materials by weight percent: isocyanates 50～80%, polyether polyol 5～15%, PEPA 10～30%, chain extender 1～4%.
Double-component PVC board polyurethane adhesive for compounding the most according to claim 1, it is characterised in that be made up of for 3:1 in mass ratio component A and B component.
Double-component PVC board polyurethane adhesive for compounding the most according to claim 1, it is characterised in that in described component A, Oleum Ricini is one-level refining castor oil, its hydroxyl value is 160～170mg KOH/g, degree of functionality 2.7；In described component A, aerosil is the aerosil of hydrophobic type, specific surface area 120 mg2/g。
Double-component PVC board polyurethane adhesive for compounding the most according to claim 1, it is characterized in that, one or more during polyether polyol is polyoxypropyleneglycol, polypropylene oxide triol, PTMG in described component A, its molecular weight is 1000～3000g/mol；One or more during coupling agent is silane coupler, titanate coupling agent, aluminate coupling agent in described component A, preferably silane coupler and titanate coupling agent；One or more during filler is calcium carbonate, silica flour, titanium dioxide, silicon powder, barite, Pulvis Talci or glass fibre in described component A.
Double-component PVC board polyurethane adhesive for compounding the most according to claim 4, it is characterised in that in described component A, polyether polyol is polyoxypropyleneglycol；In described component A, coupling agent is the silane coupler of tertiary-amino-containing；In described component A, filler is calcium carbonate, and size is 1～5 μm, and moisture control is below 0.2%.
Double-component PVC board polyurethane adhesive for compounding the most according to claim 1, it is characterised in that in described component A, desiccant is 4A type molecular sieve.
Double-component PVC board polyurethane adhesive for compounding the most according to claim 1, it is characterized in that, during in described B component, polyisocyanates is toluene di-isocyanate(TDI), MDI, polymethylene multi-phenenyl isocyanate, isophorone diisocyanate two kinds and more than；One or more during polyether polyol is polyoxypropyleneglycol, polypropylene oxide triol, PTMG in described B component；One or more during PEPA is ethanedioic acid kind polyester polyhydric alcohol, adipic acid kind polyester polyhydric alcohol, poly-several lactone polyols, PCDL in described B component；One or more during chain extender is 1,2-ethylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-HD, neopentyl glycol, trimethylolpropane in described B component.
Double-component PVC board polyurethane adhesive for compounding the most according to claim 7, it is characterised in that in described B component, polyisocyanates is MDI and polymethylene multi-phenenyl isocyanate；In described B component, polyether polyol is PTMG and/or polypropylene oxide triol, and its molecular weight is respectively 500～1500g/mol and 300～500g/mol；In described B component, PEPA is polyadipate kind polyester polyhydric alcohol, and its molecular weight is 2000～4000g/mol, degree of functionality 2；In described B component, chain extender is 1,4-butanediol.
9. the preparation method of the double-component PVC board polyurethane adhesive for compounding as described in claim 1-8 is arbitrary, it is characterised in that comprise the following steps:
(1) preparation of component A: by formula by after Oleum Ricini, polyether polyol, coupling agent, aerosil, filler, desiccant mix homogeneously, 100～130 DEG C ,-0.096Mpa dehydration to moisture less than below 500ppm, obtain component A；
(2) preparation of B component: by formula by after isocyanates, polyether polyol, PEPA, chain extender mix homogeneously, reacting 4～6h at 80～100 DEG C, NCO% is 10～25% in control, prepares B component；
(3) A and the mixing of B component: above-mentioned prepared component A and B component are individually packed, is sufficiently mixed uniformly by the weight ratio of 1:1～4:1 in use.
10. the double-component PVC board polyurethane adhesive for compounding described in claim 1 is used for PVC and the bonding of sheet material.
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