CN105838275A - Polyurethane foam base adhesive tape - Google Patents

Polyurethane foam base adhesive tape Download PDF

Info

Publication number
CN105838275A
CN105838275A CN201610058259.0A CN201610058259A CN105838275A CN 105838275 A CN105838275 A CN 105838275A CN 201610058259 A CN201610058259 A CN 201610058259A CN 105838275 A CN105838275 A CN 105838275A
Authority
CN
China
Prior art keywords
polyurethane foam
polyurethane
adhesive tape
base material
foam base
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
CN201610058259.0A
Other languages
Chinese (zh)
Inventor
洪连伟
李宣瑾
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.)
NINGBO GAYSON PLASTIC PRODUCTS CO Ltd
Original Assignee
NINGBO GAYSON PLASTIC PRODUCTS 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 NINGBO GAYSON PLASTIC PRODUCTS CO Ltd filed Critical NINGBO GAYSON PLASTIC PRODUCTS CO Ltd
Priority to CN201610058259.0A priority Critical patent/CN105838275A/en
Publication of CN105838275A publication Critical patent/CN105838275A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • 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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
    • 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/26—Porous or cellular plastics
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/06—CO2, N2 or noble gases
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • C08J2475/06—Polyurethanes from polyesters
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • 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
    • C09J2475/00—Presence of polyurethane
    • C09J2475/006—Presence of polyurethane in the substrate

Abstract

The invention relates to a polyurethane foam base adhesive tape and belongs to the technical field of adhesive tapes. The polyurethane foam base adhesive tape comprises a polyurethane foam base plate, a glue coating and a release film. The polyurethane foam base plate comprises, by weight, 100 parts of polyester polyol, 11.5-28.3 parts of diisocyanate, 8-12 parts of a chain extender, 5-13 parts of a cross-linking agent, 1.0-2.5 parts of a light stabilizing agent and 5-11 parts of mesoporous nano-TiO2. The polyurethane foam base adhesive tape has high strength, good toughness, good impact resistance and small thickness and can be used for precision apparatus manufacture. The mesoporous nano-TiO2 heterogeneous nucleation effects improve a polyurethane foam base plate microporous structure and improve strength, toughness and shock resistance. Supercritical CO2 is used for polyurethane foam base plate foaming so that safety and environmental friendliness are obtained. The foam has uniform and fine pores. The polyurethane foam has any thickness and is suitable in different fields.

Description

A kind of polyurethane foam base material adhesive tape
Technical field
The invention belongs to tape technology field, relate to a kind of polyurethane foam base material adhesive tape.
Background technology
Foam tape be with foam for base material its one or both sides be coated with solvent-borne type (or heat Molten type) pressure sensitive adhesive is multiple again is fabricated by with release paper, has outstanding sealing, incompressible Morphotropism and lasting resilience, be avoided that outside gas and release and be atomized, it is ensured that accessory Obtain long-term anti-vibration protected.Foam tape can be used for curved surface, rough surface peace The base materials such as sliding surface bonding, and prolongation over time, foam tape with by viscous base The contact area of material can become big, and adhesive property will not decline too much.Foam tape also has Low resilience characteristic, deformation recovers as time went on and slowly, and shock resistance is good； There is lower density, cost-saved.Base material many employings EVA of foam tape, XPE, IXPE, PVC, PEF, EPDF, PU etc..Wherein, using PU foam is base material Foam tape refers to that acryl glue is coated on two sides on PU foaming (polyurethane) base material Glue.Color has white and black, and usual thickness is 0.8mm and 1.6mm, main The release paper of blue ribbon grid to be covered, have that adhesion strength is strong, it is good to hold viscosity, water proofing property, The feature that hardness is good, good toughness, damping property good and resistance to Beijing South Maxpower Technology Co. Ltd power is strong, it is adaptable to hook, Billboard, seeing being adhesively fixed of drawing board, plastic strip, sheet metal etc., its Applicable temperature is -20℃-120℃.But along with science and technology and industrial expansion, manufacture and in daily life Use to adhesive tape requires more and more higher, the traditional foam tape that PU foam is base material Use at some specific area is restricted, as thickness is relatively big, and insufficient strength, antidetonation Performance is the best, the use in the field such as electronic industry not being suitable for some precisions.
Summary of the invention
It is an object of the invention to the problems referred to above existed for prior art, it is proposed that a kind of Intensity is high, toughness and tensile property is good, anti-seismic performance is high, the polyurethane foam that thickness is thin Base material adhesive tape.
The purpose of the present invention can be realized by following technical proposal:
A kind of polyurethane foam base material adhesive tape, including polyurethane foam substrate, adhesive coating layer And mould release membrance, described polyurethane foam substrate includes the component of following parts by weight:
PEPA 100 parts,
Diisocyanate 11.5-28.3 part,
Chain extender 8-12 part,
Cross-linking agent 5-13 part,
Light stabilizer 1.0-2.5 part,
Meso-porous nano TiO25-11 part.
Polyurethane foam substrate in the present invention is based on PEPA and diisocyanate Want raw material, and other raw materials of compatibility such as meso-porous nano TiO2Made by polyreaction, poly- Conjunction process is easily controllable, and the polyurethane foam substrate foam structure prepared is the finest and closely woven, bullet Property and good toughness, anti-impact force is strong, shock resistance good, light weight, thickness are thin, the glue made Band can be applicable in the instrument and equipment manufacture that comparison is accurate.
Wherein, nano-TiO2There is good weatherability, chemical resistance, chemistry steady The features such as qualitative, heat stability, heliosensitivity, antibiotic property, uviolresistance.TiO2Receive Rice grain also has the optics catalysis characteristics of uniqueness.By nano-TiO2Add polyurethane foam Substrate, can significantly improve its mechanical property, moreover it is possible to carry out coordinating to carry with light stabilizer Its resistance to ultraviolet radiation energy high.Meanwhile, TiO2Nano-particle can be managed as one again The heterogeneous nucleation agent thought, in polyurethane foam substrate foaming process, TiO2Nano-particle The nucleation energy barrier on surface is less than homogeneous nucleation energy barrier, moment can form substantial amounts of nucleating point, Substantially increase polyurethane foam substrate nucleation rate during microporous foam.Add TiO2After nano-particle, polyurethane melt elasticity increases, and in causing system, local pressure becomes The increase changed, thus increase cell nucleation speed, therefore polyurethane foam substrate presents relatively High cell density.And mesoporous TiO2Pore passage structure in nano-particle can be with polyurethane shape Become " air pocket " structure, thus reduce nucleation energy barrier, improve heterogeneous nucleation efficiency.Mesoporous TiO2Nano-particle be added with increase and the bubble helping polyurethane foam substrate cell density The reduction of hole dimension, thus increase tensile property and the intensity of polyurethane foam substrate.
Adding 5-13 part cross-linking agent in polyurethane foam substrate, polyurethane internal crosslinking is close Spending moderate, software section/hard section ratio is suitable, and showing as polyurethane foam substrate has preferably Hot strength and elongation at break；When cross-linking agent excess, urethane crosslinks density is excessive, Cohesiveness is too high, and the hot strength of polyurethane foam substrate and elongation at break can be caused bright Aobvious reduction.
As preferably, the isocyanate index of described polyurethane foam substrate is 3.5-4.9.
R value in isocyanate index i.e. polyurethane, namely cyanic acid ester group (-NCO) With the ratio of hydroxyl (-OH), represent the ratio of hard section in polyurethane molecular chain/soft section. Along with being continuously increased of R value, hard section increasing proportion, system is easily formed hydrogen bond and intramolecular Poly-power strengthens, and causes polyurethane foam substrate hot strength and elongation at break to increase；When When R value is too high, in strand, hard section ratio is too much, macro manifestations be polymer be fragility, Hot strength and elongation at break is caused to be decreased obviously.Considering, this research selects R For during 3.5-4.9 conveniently.
As preferably, described meso-porous nano TiO2For coupling agent modified meso-porous nano TiO2。
After coupling agent modified, meso-porous nano TiO2It is still mesoporous ordered structure, and And the dispersibility in polyurethane matrix increases, spread more evenly across in polyurethane matrix. Meso-porous nano TiO2Preferably dispersibility is conducive to polyurethane foam substrate at foaming process Middle nucleation, the existence of coupling agent additionally aids foamed gas CO2In immersion expanded material, Being beneficial to cell nucleation, preferably achieve the control of cell morphology, cell density substantially increases Greatly, abscess-size is the most relatively reduced, significantly improves the abscess of polyurethane foam substrate Structure.
As preferably, described coupling agent is silane coupler or titanate coupling agent.
As preferably, described chain extender is diglycol, diethanolamine, glycerol alkene One or more in propylene ether.
Chain extender, for extending the molecular weight of polyurethane, increases the molecular weight of polyurethane, with Improve mechanical property and the processing performance of polyurethane foam substrate.
As preferably, described chain extender is diglycol, diethanolamine, glycerol alkene The complex of propylene ether, diglycol, diethanolamine, the matter of glycerol allyl alkene ether Amount ratio is 3:(2-4): (3-5).
Diglycol, diethanolamine, glycerol allyl alkene ether are with the use of, existing expansion Outside chain effect and certain crosslinked action, it is also possible to the perforate of regulation polyurethane foam substrate Rate, increases resilience and the rigidity of polyurethane foam substrate, may also function as emulsification, Improve the compatibility of each storeroom.
As preferably, described diisocyanate is HDI, and described cross-linking agent is HDI trimerization Body.
HDI and PEPA react and solidify, through HDI trimer, the polyurethane foam obtained again Cotton substrate has good resilience, intensity and shock resistance.Cross-linking agent can make-OH The polyurethane prepolymer curing molding of end-blocking.HDI trimer and HDI Type Polyurethane Prepolymer Crosslinking degree good, HDI Type Polyurethane Prepolymer can be solidified quickly, formation is cured Polyurethane.
As preferably, described light stabilizer is UV-329, GW-540, antioxidant 1010 One or more.
Polyurethane is easily by action of ultraviolet light, and ammonia ester bond is decomposed and formed the quinoid of color development Structure or azo structure, cause polyurethane material yellowing variable color aging, so polyurethane material Material usually can turn yellow after using a period of time, and character also can be deteriorated.Therefore, the present invention exists Polyurethane foam substrate adds a certain amount of light stabilizer to prevent aging, prolongation use Life-span.UV-329 (2-(2'-hydroxyl-5'-(1,1,3,3-tetramethyl butyl) phenyl) benzo Triazole) it is UV absorbent, GW-540 (three (1,2,2,6,6-pentamethyl piperazines Piperidinyl) phosphite ester) be hindered amine light stabilizer, antioxidant 1010 be phenols antioxygen Agent, three is respectively provided with excellent anti ageing property, gives polyurethane foam substrate excellent Anti ageing property.
As preferably, described light stabilizer is UV-329, GW-540, antioxidant 1010 Complex, UV-329, GW-540, the ratio of antioxidant 1010 are 3:(2-5): (5-7)。
After being irradiated by ultraviolet, the polyurethane absorbing wavelength light more than 340nm, poly-ammonia Reproducibility group in ester aoxidizes, and forms unstable intermediate product, and then is formed Chromophoric group, causes material to turn yellow.It addition, after being irradiated with, polyurethane In amino-formate bond occur fracture to generate free radical, and discharge CO.Ultraviolet light Also can produce heat in irradiation process, the polyol moiety of polyurethane can be caused certainly by heat Generated by base thus degrade.Environment with the presence of oxygen there is also oxidizing process, in ultraviolet Under beta radiation, by Oxidation, the silane support portion of PEPA can be seized oxygen, connect And be transformed into hydrogen peroxide.So also to add certain antioxidant to remove what oxidation brought Xanthochromia problem.
Consider above-mentioned reason, UV-329, GW-540, antioxidant 1010 are entered Row is compound makes composite light stabilizer, and three plays synergism, phenolic antioxidant 1010 Quinones and hindered amine light stabilizer GW-540 generation is generated after oxidation N-OH is through photochemical reaction regeneration phenolic compound thus improves the entirety of light stabilizer Stabilization efficiency.
It is a further object of the present invention to provide the preparation side of a kind of polyurethane foam base material adhesive tape Method, comprises the steps:
S1, by PEPA, diisocyanate, chain extender, light stabilizer and mesoporous Nano-TiO2, cross-linking agent make polyurethane base material according to the above ratio；
S2, polyurethane base material is made polyurethane film or thin plate；
S3, polyurethane film or thin plate are placed in autoclave, first use supercritical CO2 Fluid purging system, emptying air, after sealing autoclave, system is warmed up to 110-120 DEG C, inject CO2Fluid makes saturation pressure control in 11.5-13.8MPa process 8-10h, cooling and shaping in then quick pressure releasing is placed in ice-water bath, obtain polyurethane foam Cotton substrate；
S4, adhesive is coated on polyurethane foam substrate, is coated with adhesive Polyurethane foam substrate is placed in pressure vessel, is filled with N2Pressure is made to rise to 2.5-5.0MPa Process 2-5min, polyurethane foam substrate is formed adhesive coating layer, i.e. obtain adhesive tape originally Body；
S5, outside the adhesive coating layer of adhesive tape body, stick one layer of mould release membrance, i.e. obtain glue Band.
The present invention uses under high pressure supercritical CO2Fluid is dissolved in polyurethane formation all Phase system, then forms foam structure by the way of blood pressure lowering quenches in polyurethane and goes forward side by side Row sizing, obtains under abscess-size, density is high, uniform microvoid polyurethane foam substrate. Meso-porous nano TiO is added in preparation process2, on the one hand because of the reason of itself intensity Add the intensity of polyurethane foam, on the other hand because of its heterogeneous nucleating effect, improve The foam structure of polyurethane foam, thus improve the tensile property of polyurethane foam, strong Degree and anti-seismic performance.Supercritical CO2Joining in polyurethane melt of fluid additionally aids Meso-porous nano TiO2Dispersion in polyurethane.Meso-porous nano TiO2Changed by coupling agent Property contributes to foamed gas CO2In immersion expanded material, beneficially cell nucleation.Due to this The abscess of the method generation that polyurethane substrate is prepared in invention is microcellular structure, and its thickness is permissible Accomplish the thinnest, be suitable for the finest production field and use, and its foam structure is for closing Pore structure, water resistance is preferable.The microcellular structure produced can make crack tip rust, Considerably increase the toughness of polyurethane foam substrate.Polyurethane base material is made thin polyurethane The method of film or thin plate uses conventional method.Adhesive is coated in polyurethane foam After on cotton substrate, the polyurethane foam substrate being coated with again adhesive is placed in pressure vessel In, it is filled with N2Make pressure rise to 2.5-5.0MPa and process 2-5min, gluing can be increased Adhesion between agent and urethane foam substrate, is not easily disconnected from use.
As preferably, the concrete preparation process of described polyurethane base material is: by polyester polyols Alcohol, diisocyanate mix, at N270-85 DEG C of reaction 1.5-2.5h it is heated under environment, Then it is cooled to 50-65 DEG C, adds chain extender, insulation reaction 3-4h, add light steady Determine agent and meso-porous nano TiO2, stir, obtain base polyurethane prepolymer for use as, at polyurethane Performed polymer adds cross-linking agent, stirs, at 100-115 DEG C, be incubated 20-30min Solidification obtains polyurethane base material.
The present invention is in order to prevent from having it during PEPA, di-isocyanate reaction He occurs in disadvantageous side reaction, uses N2Protect.At PEPA, two isocyanides Acid esters cools to the preference temperature of chain extending reaction and adds chain extender to carry out chain extension anti-after terminating Should, it is subsequently adding light stabilizer and meso-porous nano TiO2, stir make light stabilizer and Meso-porous nano TiO2Evenly spread to, in reaction system, obtain base polyurethane prepolymer for use as, poly- Urethane performed polymer adds cross-linking agent, stirs, be incubated at 100-115 DEG C 20-30min curing reaction obtains polyurethane base material.The temperature of curing reaction affects polyurethane The mechanical property of foam, at a certain temperature, in firming agent-NCO group and-OH -OH group in blocked polyurethane starts reaction, makes-OH blocked polyurethane by flowable state Becoming stationary state, have certain mechanical property, macro manifestations is polyurethane foam stretching Intensity and elongation at break；When temperature is too high, urethane crosslinks density is excessive, cohesion Power is too high, causes polyurethane foam hot strength and elongation at break substantially to reduce.
Compared with prior art, the method have the advantages that
In the present invention, the base material of adhesive tape uses light weight, shock resistance good, good mechanical performance Polyurethane foam substrate, prepared belt strength height, good toughness, anti-impact force are strong, thick Spend thin, can be applicable in the instrument and equipment manufacture that comparison is accurate.Polyurethane foam adds Having compound light stabilizer, uvioresistant and ageing properties excellent, service life is long, It is added with meso-porous nano TiO2, its heterogeneous nucleating effect improves polyurethane foam substrate Microcellular structure, adds its intensity, toughness and shock resistance.Use supercritical CO2 Carry out the foaming of polyurethane foam substrate, safety and environmental protection, gained polyurethane foam substrate Uniform foam cell is tiny, the polyurethane foam substrate thickness made can Bao Kehou, be suitable for difference Field uses.
Detailed description of the invention
The following is the specific embodiment of the present invention, technical scheme is made further Description, but the present invention is not limited to these embodiments.
Below by specific embodiment the polyurethane foam base material adhesive tape in the present invention made into One step is explained.In following example, the number of all substances calculates the most by weight.
Embodiment 1
By 100 parts of PEPAs, 11.5 parts of HDI mixing, at N2Heat under environment Reaction 1.5h, reaction temperature is 70 DEG C, is then cooled to 50 DEG C, adds 8 parts of chain extenders Diglycol, insulation reaction 3h, add 1.0 parts of light stabilizer UV-329 and 5 parts of meso-porous nano TiO2, stir, obtain base polyurethane prepolymer for use as, pre-at polyurethane Aggressiveness adds 5 parts of cross-linking agent HDI trimer, stirs, be incubated at 100 DEG C 20min solidification obtains polyurethane base material, and the isocyanate index of polyurethane base material is 3.5；
Polyurethane base material is made polyurethane film or thin plate by conventional method；
Polyurethane film or thin plate are placed in autoclave, first use supercritical CO2Stream Body purging system, emptying air, after sealing autoclave, system is warmed up to 110 DEG C, Inject CO2Fluid makes saturation pressure control, at 11.5MPa process 8h, the most quickly to let out Pressure is placed in cooling and shaping in ice-water bath, obtains polyurethane foam substrate；
Adhesive is coated on polyurethane foam substrate, is then coated with adhesive Polyurethane foam substrate is placed in pressure vessel, is filled with N2Pressure is made to be slowly increased to 2.5MPa Process 2min, polyurethane foam substrate is formed adhesive coating layer, i.e. obtains adhesive tape body； Outside the adhesive coating layer of adhesive tape body, stick one layer of mould release membrance, i.e. obtain adhesive tape.
Embodiment 2
By 100 parts of PEPAs, 19.3 parts of HDI mixing, at N2Heat under environment Reaction 2.0h, reaction temperature is 78 DEG C, is then cooled to 60 DEG C, adds 10 parts of chain extensions Agent glycerol allyl alkene ether, insulation reaction 3.5h, add 1.8 parts of light stabilizer antioxidant 1010 and 8 parts of silane coupler modified meso-porous nano TiO2, stir, gathered Urethane performed polymer, adds 8 parts of cross-linking agent HDI trimer in base polyurethane prepolymer for use as, stirs Mix uniformly, at 110 DEG C, be incubated 25min solidification obtain polyurethane base material, polyurethane-base The isocyanate index of material is 4.2；
Polyurethane base material is made polyurethane film or thin plate by conventional method；
Polyurethane film or thin plate are placed in autoclave, first use supercritical CO2Stream Body purging system, emptying air, after sealing autoclave, system is warmed up to 115 DEG C, Inject CO2Fluid makes saturation pressure control, at 12.5MPa process 9h, the most quickly to let out Pressure is placed in cooling and shaping in ice-water bath, obtains polyurethane foam substrate；
Adhesive is coated on polyurethane foam substrate, is then coated with adhesive Polyurethane foam substrate is placed in pressure vessel, is filled with N2Pressure is made to be slowly increased to 4.0 MPa processes 4min, forms adhesive coating layer, i.e. obtain glue on polyurethane foam substrate Band body；Outside the adhesive coating layer of adhesive tape body, stick one layer of mould release membrance, i.e. obtain glue Band.
Embodiment 3
By 100 parts of PEPAs, 28.3 parts of HDI mixing, at N2Heat under environment Reaction 2.5h, reaction temperature is 85 DEG C, is then cooled to 65 DEG C, adds 12 parts of chain extensions Agent diethanolamine, insulation reaction 4h, add 2.5 parts of light stabilizer GW-540 and 5-11 The meso-porous nano TiO of part titanate coupling agent modified2, stir, obtain polyurethane pre- Aggressiveness, adds 13 parts of cross-linking agent HDI trimer in base polyurethane prepolymer for use as, and stirring is all Even, at 115 DEG C, it is incubated 30min solidification obtains polyurethane base material, polyurethane base material Isocyanate index is 4.6；
Polyurethane base material is made polyurethane film or thin plate by conventional method；
Polyurethane film or thin plate are placed in autoclave, first use supercritical CO2Stream Body purging system, emptying air, after sealing autoclave, system is warmed up to 120 DEG C, Inject CO2Fluid makes saturation pressure control, at 13.8MPa process 10h, the most quickly to let out Pressure is placed in cooling and shaping in ice-water bath, obtains polyurethane foam substrate；
Adhesive is coated on polyurethane foam substrate, is then coated with adhesive Polyurethane foam substrate is placed in pressure vessel, is filled with N2Pressure is made to be slowly increased to 5.0MPa Process 5min, polyurethane foam substrate is formed adhesive coating layer, i.e. obtains adhesive tape body； Outside the adhesive coating layer of adhesive tape body, stick one layer of mould release membrance, i.e. obtain adhesive tape.
Embodiment 4
By 100 parts of PEPAs, 28.3 parts of HDI mixing, at N2Heat under environment Reaction 2.5h, reaction temperature is 85 DEG C, is then cooled to 65 DEG C, adds 12 parts of chain extensions Agent, insulation reaction 4h, add 2.5 parts of light stabilizer GW-540 and 5-11 part metatitanic acid The meso-porous nano TiO that ester is coupling agent modified2, stir, obtain base polyurethane prepolymer for use as, In base polyurethane prepolymer for use as, add 13 parts of cross-linking agent HDI trimer, stir, It is incubated 30min solidification at 115 DEG C and obtains polyurethane base material, the isocyanates of polyurethane base material Index is 4.8, wherein, chain extender weight ratio be the diglycol of 3:2:3, two Ethanolamine, the complex of glycerol allyl alkene ether；
Polyurethane base material is made polyurethane film or thin plate by conventional method；
Polyurethane film or thin plate are placed in autoclave, first use supercritical CO2Stream Body purging system, emptying air, after sealing autoclave, system is warmed up to 120 DEG C, Inject CO2Fluid makes saturation pressure control, at 13.8MPa process 10h, the most quickly to let out Pressure is placed in cooling and shaping in ice-water bath, obtains polyurethane foam substrate；
Adhesive is coated on polyurethane foam substrate, is then coated with adhesive Polyurethane foam substrate is placed in pressure vessel, is filled with N2Pressure is made to be slowly increased to 5.0MPa Process 5min, polyurethane foam substrate is formed adhesive coating layer, i.e. obtains adhesive tape body； Outside the adhesive coating layer of adhesive tape body, stick one layer of mould release membrance, i.e. obtain adhesive tape.
Embodiment 5
By 100 parts of PEPAs, 28.3 parts of HDI mixing, at N2Heat under environment Reaction 2.5h, reaction temperature is 85 DEG C, is then cooled to 65 DEG C, adds 12 parts of chain extensions Agent diethanolamine, insulation reaction 4h, add 2.5 parts of light stabilizers and 11 parts of metatitanic acids The meso-porous nano TiO that ester is coupling agent modified2, stir, obtain base polyurethane prepolymer for use as, In base polyurethane prepolymer for use as, add 13 parts of cross-linking agent HDI trimer, stir, It is incubated 30min solidification at 115 DEG C and obtains polyurethane base material, the isocyanates of polyurethane base material Index is 4.9, wherein, chain extender weight ratio be the diglycol of 3:4:5, two Ethanolamine, the complex of glycerol allyl alkene ether, light stabilizer be weight ratio be 3:2:5 UV-329, GW-540, the complex of antioxidant 1010；
Polyurethane base material is made polyurethane film or thin plate by conventional method；
Polyurethane film or thin plate are placed in autoclave, first use supercritical CO2Stream Body purging system, emptying air, after sealing autoclave, system is warmed up to 110-120 DEG C, inject CO2Fluid makes saturation pressure control in 11.5-13.8MPa process 8-10h, cooling and shaping in then quick pressure releasing is placed in ice-water bath, obtain polyurethane foam Cotton substrate；
Adhesive is coated on polyurethane foam substrate, is then coated with adhesive Polyurethane foam substrate is placed in pressure vessel, is filled with N2Pressure is made to be slowly increased to 5.0MPa Process 5min, polyurethane foam substrate is formed adhesive coating layer, i.e. obtains adhesive tape body； Outside the adhesive coating layer of adhesive tape body, stick one layer of mould release membrance, i.e. obtain adhesive tape.
Embodiment 6
By 100 parts of PEPAs, 28.3 parts of HDI mixing, at N2Heat under environment Reaction 2.5h, reaction temperature is 85 DEG C, is then cooled to 65 DEG C, adds 12 parts of chain extensions Agent diethanolamine, insulation reaction 4h, add 2.5 parts of light stabilizers and 11 parts of metatitanic acids The meso-porous nano TiO that ester is coupling agent modified2, stir, obtain base polyurethane prepolymer for use as, In base polyurethane prepolymer for use as, add 13 parts of cross-linking agent HDI trimer, stir, It is incubated 20-30min solidification at 115 DEG C and obtains polyurethane base material, the isocyanide of polyurethane base material Acid esters index is 4.9, wherein, chain extender weight ratio be 3:4:5 diglycol, Diethanolamine, the complex of glycerol allyl alkene ether, light stabilizer be weight ratio be 3:5: The UV-329 of 7, GW-540, the complex of antioxidant 1010；
Polyurethane base material is made polyurethane film or thin plate by conventional method；
Polyurethane film or thin plate are placed in autoclave, first use supercritical CO2Stream Body purging system, emptying air, after sealing autoclave, system is warmed up to 120 DEG C, Inject CO2Fluid makes saturation pressure control, at 13.8MPa process 10h, the most quickly to let out Pressure is placed in cooling and shaping in ice-water bath, obtains polyurethane foam substrate；
Adhesive is coated on polyurethane foam substrate, is then coated with adhesive Polyurethane foam substrate is placed in pressure vessel, is filled with N2Pressure is made to be slowly increased to 5.0MPa Process 5min, polyurethane foam substrate is formed adhesive coating layer, i.e. obtains adhesive tape body； Outside the adhesive coating layer of adhesive tape body, stick one layer of mould release membrance, i.e. obtain adhesive tape.
By the polyurethane foam substrate in embodiment of the present invention 1-6 and commercially available common poly-ammonia Ester foam compares, and comparative result is as shown in table 1.
Table 1: embodiment 1-6 polyurethane foam and the comparison of commercially available conventional polyurethanes foam
In sum, the base material polyurethane foam that in the present invention, adhesive tape is used have light weight, Impact resistance is strong, shock resistance good, good mechanical performance, and prepared belt strength is high, tough Property good, shock resistance is good, thickness is thin, can be applicable to during the accurate instrument and equipment of comparison manufactures. Polyurethane foam is added with composite light stabilizer, uvioresistant and ageing properties excellent, Service life is long, uses long period color to turn yellow.
Specific embodiment described herein is only to present invention spirit theory for example Bright.Those skilled in the art can be to described specific embodiment Make various amendment or supplement or use similar mode to substitute, but without departing from The spirit of the present invention or surmount scope defined in appended claims.

Claims (9)

1. a polyurethane foam base material adhesive tape, is coated with including polyurethane foam substrate, stick Layer and mould release membrance, it is characterised in that described polyurethane foam substrate includes following weight portion The component of number:
PEPA 100 parts,
Diisocyanate 11.5-28.3 part,
Chain extender 8-12 part,
Cross-linking agent 5-13 part,
Light stabilizer 1.0-2.5 part,
Meso-porous nano TiO25-11 part.
A kind of polyurethane foam base material adhesive tape the most according to claim 1, its feature Being, the isocyanate index of described polyurethane foam substrate is 3.5-4.9.
A kind of polyurethane foam base material adhesive tape the most according to claim 1, its feature It is, described meso-porous nano TiO2For coupling agent modified meso-porous nano TiO2。
A kind of polyurethane foam base material adhesive tape the most according to claim 3, its feature Being, described coupling agent is silane coupler or titanate coupling agent.
A kind of polyurethane foam base material adhesive tape the most according to claim 1, its feature Being, described chain extender is in diglycol, diethanolamine, glycerol allyl alkene ether One or more.
A kind of polyurethane foam base material adhesive tape the most according to claim 1, its feature Being, described diisocyanate is HDI, and described cross-linking agent is HDI trimer.
A kind of polyurethane foam base material adhesive tape the most according to claim 1, its feature Be, described light stabilizer is UV-329, GW-540, the one of antioxidant 1010 or Multiple.
8. the polyurethane foam base material adhesive tape as described in claim 1-7 any claim Preparation method, it is characterised in that comprise the steps:
S1, by PEPA, diisocyanate, chain extender, light stabilizer and mesoporous Nano-TiO2, cross-linking agent make polyurethane base material in the ratio in claim 1-7；
S2, polyurethane base material is made polyurethane film or thin plate；
S3, polyurethane film or thin plate are placed in autoclave, first use supercritical CO2 Fluid purging system, emptying air, after sealing autoclave, system is warmed up to 110-120 DEG C, inject CO2Fluid makes saturation pressure control in 11.5-13.8MPa process 8-10h, cooling and shaping in then quick pressure releasing is placed in ice-water bath, obtain polyurethane foam Cotton substrate；
S4, adhesive is coated on polyurethane foam substrate, is coated with adhesive Polyurethane foam substrate is placed in pressure vessel, is filled with N2Pressure is made to rise to 2.5-5.0MPa Process 2-5min, polyurethane foam substrate is formed adhesive coating layer, i.e. obtain adhesive tape originally Body；
S5, outside the adhesive coating layer of adhesive tape body, stick one layer of mould release membrance, i.e. obtain glue Band.
The preparation method of polyurethane foam base material adhesive tape the most according to claim 8, It is characterized in that, the concrete preparation process of described polyurethane base material is: by PEPA, Diisocyanate mixes, at N270-85 DEG C of reaction 1.5-2.5h it is heated to, so under environment After be cooled to 50-65 DEG C, add chain extender, insulation reaction 3-4h, add light stable Agent and meso-porous nano TiO2, stir, obtain base polyurethane prepolymer for use as, pre-at polyurethane Aggressiveness adds cross-linking agent, stirs, at 100-115 DEG C, be incubated 20-30min solid Change and obtain polyurethane base material.
CN201610058259.0A 2016-01-28 2016-01-28 Polyurethane foam base adhesive tape Pending CN105838275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610058259.0A CN105838275A (en) 2016-01-28 2016-01-28 Polyurethane foam base adhesive tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610058259.0A CN105838275A (en) 2016-01-28 2016-01-28 Polyurethane foam base adhesive tape

Publications (1)

Publication Number Publication Date
CN105838275A true CN105838275A (en) 2016-08-10

Family

ID=56580601

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610058259.0A Pending CN105838275A (en) 2016-01-28 2016-01-28 Polyurethane foam base adhesive tape

Country Status (1)

Country Link
CN (1) CN105838275A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106497006A (en) * 2016-09-23 2017-03-15 台州奥润吉新材料有限公司 A kind of foam cushion pad and its moulding process
CN107652910A (en) * 2017-11-09 2018-02-02 锋泾（中国）建材集团有限公司 Polyurethane foam glue gap filling band and preparation method thereof
CN108314974A (en) * 2018-01-16 2018-07-24 江苏亚龙新材料科技有限公司 A kind of ultra-thin doped polypyrrole conductive tape and preparation method thereof
CN108456496A (en) * 2018-01-16 2018-08-28 江苏亚龙新材料科技有限公司 A kind of easy-to-draw adhesive tape of graphite powder modified polyurethane foam and preparation method thereof
CN110951035A (en) * 2019-12-27 2020-04-03 福建安达福新材料科技有限公司 Polyurethane foam material based on supercritical carbon dioxide and preparation method thereof
CN111518260A (en) * 2020-06-03 2020-08-11 湖南省普瑞达内装材料有限公司 Novel polyurethane foam composition
CN116535989A (en) * 2023-04-17 2023-08-04 重庆永迪高分子材料有限公司 Sponge adhesive tape and preparation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1827673A (en) * 2005-01-24 2006-09-06 戈尔德施米特有限公司 Nanoparticles for the preparation of polyurethane foams
CN1849352A (en) * 2003-08-08 2006-10-18 罗狄亚聚酰胺中间体公司 Polyurethane foam, production methods thereof and use of same
WO2009063004A2 (en) * 2007-11-14 2009-05-22 Basf Se Foamed polyurethanes having improved flexural endurance properties
CN103154068A (en) * 2010-09-07 2013-06-12 陶氏环球技术有限责任公司 Process for making low compression set and high airflow mdi viscoelastic polyurethane foam
CN103906778A (en) * 2011-09-29 2014-07-02 陶氏环球技术有限责任公司 Viscoelastic foam
CN104512076A (en) * 2013-09-26 2015-04-15 美国圣戈班性能塑料公司 Ultrathin foam cushion and adhesive bandage
CN104927690A (en) * 2014-03-20 2015-09-23 郑行洙 Method for preparing foam tape comprising wet polyurethane foam and foam tape prepared thereby

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1849352A (en) * 2003-08-08 2006-10-18 罗狄亚聚酰胺中间体公司 Polyurethane foam, production methods thereof and use of same
CN1827673A (en) * 2005-01-24 2006-09-06 戈尔德施米特有限公司 Nanoparticles for the preparation of polyurethane foams
WO2009063004A2 (en) * 2007-11-14 2009-05-22 Basf Se Foamed polyurethanes having improved flexural endurance properties
CN101855261A (en) * 2007-11-14 2010-10-06 巴斯夫欧洲公司 Foamed polyurethanes having improved flexural endurance properties
CN103154068A (en) * 2010-09-07 2013-06-12 陶氏环球技术有限责任公司 Process for making low compression set and high airflow mdi viscoelastic polyurethane foam
CN103906778A (en) * 2011-09-29 2014-07-02 陶氏环球技术有限责任公司 Viscoelastic foam
CN104512076A (en) * 2013-09-26 2015-04-15 美国圣戈班性能塑料公司 Ultrathin foam cushion and adhesive bandage
CN104927690A (en) * 2014-03-20 2015-09-23 郑行洙 Method for preparing foam tape comprising wet polyurethane foam and foam tape prepared thereby

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱吕民等: "《聚氨酯泡沫塑料（第三版）》", 31 January 2005 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106497006A (en) * 2016-09-23 2017-03-15 台州奥润吉新材料有限公司 A kind of foam cushion pad and its moulding process
CN107652910A (en) * 2017-11-09 2018-02-02 锋泾（中国）建材集团有限公司 Polyurethane foam glue gap filling band and preparation method thereof
CN107652910B (en) * 2017-11-09 2020-04-28 锋泾（中国）建材集团有限公司 Polyurethane foam joint filling adhesive tape and preparation method thereof
CN108314974A (en) * 2018-01-16 2018-07-24 江苏亚龙新材料科技有限公司 A kind of ultra-thin doped polypyrrole conductive tape and preparation method thereof
CN108456496A (en) * 2018-01-16 2018-08-28 江苏亚龙新材料科技有限公司 A kind of easy-to-draw adhesive tape of graphite powder modified polyurethane foam and preparation method thereof
CN110951035A (en) * 2019-12-27 2020-04-03 福建安达福新材料科技有限公司 Polyurethane foam material based on supercritical carbon dioxide and preparation method thereof
CN111518260A (en) * 2020-06-03 2020-08-11 湖南省普瑞达内装材料有限公司 Novel polyurethane foam composition
CN116535989A (en) * 2023-04-17 2023-08-04 重庆永迪高分子材料有限公司 Sponge adhesive tape and preparation method thereof

Similar Documents

Publication Publication Date Title
CN105838275A (en) Polyurethane foam base adhesive tape
CN107099017B (en) High-density polyurethane foam, preparation method thereof and foam adhesive tape
US11377532B2 (en) Approach to heat expandable materials
US8133419B2 (en) Method for making automotive headliners
EP1756189B1 (en) Blocked polyurethane prepolymers useful in coating compositions
SK40099A3 (en) Light-stable elastomeric polyurethane mouldings and process for the production thereof
KR20070073843A (en) Molded flexible polyurethane foams with reduced flammability and superior durability
CN102906146B (en) Use the hot melt adhesion of thermoplastic polyurethane
CN111704709B (en) Low-modulus solvent-free polyurethane resin for synthetic leather and preparation method thereof
CN110964173A (en) Polyurethane composition for honeycomb composite material, preparation method of polyurethane composition, polyurethane foam and application of polyurethane foam
US11267990B2 (en) Method for manufacturing flexible packaging film
US5223598A (en) Plural liquid pack type, heat-curable polyisocyanate-polyol-polyepoxy resin composition and process for producing a shaped resin article therefrom
EP3414281B1 (en) Thermoplastic formulation with improved adhesion
CN113773470A (en) Anti-aging polyurethane material, preparation method and application
KR20200048775A (en) Thermal acid generator and thermosetting resin comprising the same
JPS60158214A (en) Catalyst composition
CN111518259A (en) High-resilience polyurethane microporous elastomer and preparation method and application thereof
US11453739B2 (en) Use of thermally decomposable acid as inhibitor for preparing polyisocyanurate composites
TW201114793A (en) Sprayable elastomeric polyurethane foam and process for its production
CN105189596B (en) Transparent polyurethane
CN111055798B (en) Composite bumper and preparation method thereof
KR101888738B1 (en) Stacked and biaxially stretched polyester film for optical use and method for manufacturing product using the same
EP4036138A1 (en) A method for stably storing an isocyanate composition
CN117343267A (en) Enclosed polyurethane composition and preparation method and application thereof
WO2022136068A1 (en) A method for stably storing an isocyanate composition

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20160810

RJ01 Rejection of invention patent application after publication