CN101817976A - Polyurethane elastic floor board and preparation method thereof - Google Patents
Polyurethane elastic floor board and preparation method thereof Download PDFInfo
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- CN101817976A CN101817976A CN 201010164394 CN201010164394A CN101817976A CN 101817976 A CN101817976 A CN 101817976A CN 201010164394 CN201010164394 CN 201010164394 CN 201010164394 A CN201010164394 A CN 201010164394A CN 101817976 A CN101817976 A CN 101817976A
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Abstract
The invention provides a polyurethane elastic floor board, which consists of the following raw materials in part by weight: 100 parts of thermoplastic polyurethane (polyurethane resin), 0 to 5 parts of pigment, 0 to 0.5 part of drag reducer, 0.1 to 0.5 part of ultraviolet absorber and 1 to 5 parts of fire retardant. The method comprises the following steps of: uniformly mixing all raw materials, baking the mixture; heating and fusing the mixture; injecting the mixture into a mold through an injection molding machine; and cooling and molding the treated mixture to prepare the elastic floor board. The prepared elastic floor board has the advantages of high elasticity, high comfort, and high hardness, wear resistance, temperature change resistance, photochromic resistance and fire resistance, wherein the hardness is accordant with national floor board standard.
Description
Technical field
The present invention relates to a kind of finishing material and preparation method thereof, particularly a kind of polymer elasticity floor and preparation method thereof.
Background technology
The floor is made by plank or other earth material, it is multiple to be divided into solid wooden floor board, solid wooden compound floor, reinforced composite floorboard, bamboo floor, cork flooring, geothermal heating floor, plastic floor, rubber floor covering etc., wherein plastic floor is current popular a kind of novel light body floor decorative material, is also referred to as " light body ground material ".The plastic floor of present domestic use is the PVC floor on the floor of employing pvc material production, it is a main raw material with polyvinyl chloride and copolymer resins thereof, add auxiliary materials such as filler, softening agent, stablizer, tinting material, on the sheet continuous base material, coated technology or through calendering, extrude or extrusion process produces.
Rubber floor covering is the made floor of the macromolecular material of natural rubber, synthetic rubber and other composition.With rubber be main material production be divided into homogeneous and heterogeneous relief surface, the indoor rubber floor covering of shiny surface.The homogeneous rubber floor covering refers to based on natural rubber or synthetic rubber, the floor that color, the consistent single or multiple lift structure sulfuration of composition form; The heterogeneous body rubber floor covering: refer to the floor based on natural rubber or synthetic rubber, include on the structure wearing layer with other form and (or) different compacted lift formation in the design, compacted lift includes casing ply.Rubber floor covering generally is used for high-end place or high to the high place price of wear resisting property requirement, and market capacity is little.
The present macromolecule polymeric material floor hardness height that uses, poor flexibility, the comfortableness of use is poor; Material is easily aging, and weathering resistance is poor, wearing and tearing easily, and non-skid property is poor, and it is big to expand with heat and contract with cold, and is easy to generate curling bulging, can not make the outdoor use adhesive floor.
Urethane is the high molecular polymer that contains carbamate in the molecule chain, its main chain is made up of the subambient soft segment block of second-order transition temperature, oligomer polyol (as polyether glycol, polyester glycol etc.) constitutes soft chain segment, and vulcabond and small molecule chain extender (as diamines, glycol) constitute hard segment.The product of polyurethane material has polyurethane elastomer, foam article (soft bubble, hard bubble), water-proof material, pavement material, coating, tackiness agent, sealing agent and important goods spandex etc.
The polyurethane high molecule material has the macromolecular material that Polyurethane Thermoplastic Elastomer (Thermoplastic PolyUrethane is called for short TPU) is formed by '-diphenylmethane diisocyanate (MDI), tolylene diisocyanate (TDI) and macromolecular polyol, the common reactive polymeric of chainextender.Its molecular structure is an alternately formation of the rigid block that obtained by '-diphenylmethane diisocyanate (MDI), tolylene diisocyanate (TDI) and chainextender reaction and '-diphenylmethane diisocyanate (MDI), tolylene diisocyanate (TDI) and the macromolecular polyol reaction soft segment that obtains.Having remarkable high tensile, high-tensile strength, tough and ageing-resistant characteristic, is a kind of sophisticated environment-friendly materials.Thermoplastic polyurethane elastomer has bridge segmentation structure, can be divided into two kinds of polyester type and polyether-types by molecular structure, can be divided into injection grade, extrusion grade, blowing level etc. by processing mode.
Polyurethane Thermoplastic Elastomer (TPU) has the performance of various excellences.As: good, the anti-hydrolysis of comprehensive mechanical performance, antimicrobial erosion performance excellence, grease resistance, heat-resisting, low temperature resistant, chemical resistance is good, especially wear resisting property is very outstanding, durometer level is wide, flexibility is good.Existing high rigidity has snappiness again, is that other plastics and rubber are unexistent, accommodates as flooring material.In recent years, because product innovation is constantly developed, during the consumption of TPU increases just constantly, start the new opportunity of industry of low cost, high additive value for the plastic cement processer.
Thermoplastic polyurethane is very extensive as the application of finishing material, and for example, Granted publication number discloses polyurethane elastic floor board brick and manufacture method thereof for the patent of invention of CN1304712C.This floor tile comprises 4,4 '-diphenylmethanediisocyanate 10-25 part, 1,4-butyleneglycol 0-15 part, polyoxytrimethylene polyvalent alcohol 75-90 part, talcum powder or lime carbonate 20-50 part, phosphoric acid ester fire-retardant agent 5-10 part, above-mentioned raw materials through heating, mix, stir, pour into a mould again after the polyreaction for a long time, series of processes such as the demoulding is prepared from.This floor tile complicated process of preparation, the raw material of use need be carried out complicated polyreaction, and the product density that makes is low, and tensile strength is low, a little less than the tear strength, photostabilization is poor, the variable color of easily fading, and also the low temperature cold tolerance is poor, under low temperature condition, floor easy fracture, unsuitable outdoor application.
Summary of the invention
The objective of the invention is the problem that exists at above prior art and a kind of polyurethane elastic floor board and preparation method thereof is provided.This polyurethane elastic floor board is main raw material with the Polyurethane Thermoplastic Elastomer, and the not only elasticity on the floor of preparation is strong, the comfort level height, and hardness meets national floor standard, and has good hardness, wear resistance, temperature-change resistance, fast light variable color and fire line.
For realizing the object of the invention, an aspect of of the present present invention provides a kind of polyurethane elastic floor board, is made up of following raw materials in weight portion:
Thermoplastic polyurethane 100
Toner 0-5
Flow improver 0-0.5
UV light absorber 0.1-0.5
Fire retardant 1-5
Wherein, the weight part proportion optimization of described raw material is:
Thermoplastic polyurethane 100
Toner 2-5
Flow improver 0.1-0.5
UV light absorber 0.1-0.3
Fire retardant 1-2
Particularly, the molecular weight of described thermoplastic polyurethane is 700-5000, and hardness is 70A-72D, and melting index is 1000-1500Pa/s.
Especially, described thermoplastic polyurethane is diphenylmethanediisocyanate (MDI) and polyether glycol polymkeric substance.
Wherein, described toner is one or more in the versicolor dryness coating; Described flow improver is selected one or more in micro mist wax, blended wax, polyethylene wax, the oxidized polyethlene wax; Described UV light absorber is selected one or more in 2-hydroxyl-4-own octyloxy-2 benzophenone, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole, 2-(2 '-hydroxyl-5 '-uncle's octyl phenyl) benzotriazole or 2-(2 '-hydroxyl-the 3 '-tertiary butyl-5 '-the aminomethyl phenyl)-5-chlorinated benzotriazole, is preferably 2-hydroxyl-4-own octyloxy-2 benzophenone; Described fire retardant is selected one or more in zinc borate, hydrated aluminum oxide, the ammonium polyphosphate.
Particularly, described micro mist wax is selected poly-tetrafluoro micro mist wax TF1778, polyethylene micropowder wax 3620, poly-tetrafluoro micro mist wax 9610f.
Especially, described poly-tetrafluoro micro mist wax TF1778, its maximum particle size DV50≤6 μ m, fusing point is 90-120 ℃, density is 0.95-1g/cm
3, acid number＜1mgKOH/g; Described polyethylene micropowder wax 3620 is a ultramicro powder, and its particle diameter is 7.5-9.5um, and acid number is 0mgKOH/g, density 0.96-0.98g/cm
3, dropping point is 122-127 ℃; Described poly-tetrafluoro micro mist wax 9610f is white ultramicro powder, and its fineness 95% is less than 14 microns, and fusing point is 110-150 ℃.
Particularly, described zinc borate is selected 3.5 hydration zinc borates, and molecular formula is 2ZnO3B
2O
33.5H
2O; The molecular formula of described hydrated aluminum oxide is Al
2O
33H
2O; Nitrogen content is 22-25% in the described ammonium polyphosphate, and phosphorus content 〉=20%, molecular weight are＞10
5
The present invention provides a kind of preparation method of polyurethane elastic floor board on the other hand, comprises following step in sequence:
1) prepare raw material according to following weight part proportioning:
Thermoplastic polyurethane 100
Toner 0-5
Flow improver 0-0.5
UV light absorber 0.1-0.5
Fire retardant 1-5
2) toast after whole raw materials is mixed, make water ratio≤10% of mixture;
3) heat temperature raising makes the mixture fusion after the baking, then the fused mixture is extruded or is expelled in the mould, and cooling forming forms.
Wherein, the weight part proportion optimization of the raw material described in the step 1) is:
Thermoplastic polyurethane 100
Toner 2-5
Flow improver 0.1-0.5
UV light absorber 0.1-0.3
Fire retardant 1-2
Particularly, the molecular weight of described thermoplastic polyurethane is 700-5000, and hardness is 70A-72D, and melting index is 1000-1500Pa/s.
Especially, described thermoplastic polyurethane is diphenylmethanediisocyanate (MDI) and polyether glycol polymkeric substance.
Wherein, described toner is one or more in the versicolor dryness coating; Described flow improver is selected one or more in micro mist wax, blended wax, polyethylene wax, the oxidized polyethlene wax; Described UV light absorber is selected one or more in 2-hydroxyl-4-own octyloxy-2 benzophenone, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole, 2-(2 '-hydroxyl-5 '-uncle's octyl phenyl) benzotriazole or 2-(2 '-hydroxyl-the 3 '-tertiary butyl-5 '-the aminomethyl phenyl)-5-chlorinated benzotriazole, is preferably 2-hydroxyl-4-own octyloxy-2 benzophenone; Described fire retardant is selected one or more in zinc borate, hydrated aluminum oxide, the ammonium polyphosphate.
Particularly, described micro mist wax is selected poly-tetrafluoro micro mist wax TF1778, polyethylene micropowder wax 3620, poly-tetrafluoro micro mist wax 9610f.
Especially, described poly-tetrafluoro micro mist wax TF1778, its maximum particle size DV50≤6 μ m, fusing point is 90-120 ℃, density is 0.95-1g/cm
3, acid number＜1mgKOH/g; Described polyethylene micropowder wax 3620 is a ultramicro powder, and its particle diameter is 7.5-9.5um, and acid number is 0mgKOH/g, density 0.96-0.98g/cm
3, dropping point is 122-127 ℃; Described poly-tetrafluoro micro mist wax 9610f is white ultramicro powder, and its fineness 95% is less than 14 microns, and fusing point is 110-150 ℃.
Particularly, described zinc borate is selected 3.5 hydration zinc borates, and molecular formula is 2Zn O3B
2O
33.5H
2O; The molecular formula of described hydrated aluminum oxide is Al
2O
33H
2O; Nitrogen content is 22-25% in the described ammonium polyphosphate, and phosphorus content 〉=20%, molecular weight are＞10
5
Wherein, step 2) storing temperature described in is 90-110 ℃, is preferably 105-110 ℃; Described water ratio is preferably 5-10%.
Particularly, the mixture melt temperature described in the step 3) is 150-190 ℃, is preferably 175-190 ℃.
Polyurethane elastic floor board of the present invention has following advantage:
1, resiliently-mounted floor good stability of the present invention, rerum natura is good, and is applied widely, can be as the floor in outdoor place, elasticity is strong, the comfort level height of use;
2, the tensile strength of resiliently-mounted floor of the present invention is big, reaches 306kg/cm
2More than, floor easy fracture not under horizontal force action; The elongation height reaches 569kg/cm
2More than, the elasticity on floor is strong, can increase frictional force and torsion when being subjected to horizontal applied force, and the floor is subjected to replying easily after the external force effect, and is not yielding;
3, polyurethane elastic floor board of the present invention also has good abrasion resistance, and frictional dissipation is low, is lower than 85.128mm
3
4, resiliently-mounted floor of the present invention has stronger fast light discoloration, weathering resistance and fire resistance.
5, the preparation method of resiliently-mounted floor of the present invention is simple, the processing condition gentleness, and with low cost, expense is low.
Embodiment
Describe content of the present invention in detail below by specific embodiment.
The molecular weight of the Polyurethane Thermoplastic Elastomer of using in the specific embodiment of the invention is 700-5000, and hardness (Xiao Shi) is 70A～72D, and melting index is 1000-1500PA/s, is diphenylmethanediisocyanate (MDI) and polyether glycol polymkeric substance.
Embodiment 1
1, gets the raw materials ready according to following weight proportion
Thermoplastic polyurethane 100kg
Toner 0kg
Flow improver 0.5kg
UV light absorber 0.1kg
Fire retardant 2kg
Wherein, the hardness of thermoplastic polyurethane is 85A, and melting index is 1260.1Pa/s; Flow improver is micro mist wax TF1778, and its maximum particle size DV50 is 6 μ m, and fusing point is 102 ℃, and density is 0.98g/cm
3, acid number＜1mgKOH/g; UV light absorber is 2-hydroxyl-4-own octyloxy-2 benzophenone; Fire retardant is 3.5 hydration zinc borates (2Zn O3B
2O
33.5H
2O);
2, all raw materials are joined in the baking oven, stir, heat up and toast, make the combination drying material, wherein storing temperature is 100 ℃, and the water ratio of dried material is 7%;
3, the dry mixed material is joined injector (day injection moulding machine Guangdong, sea company limited, model: 180DT), heat temperature raising to 175 ℃ makes the fusion of dry mixed material;
4, with the nozzle high pressure of fused material by injector, inject 330mm * 330mm fast, square, evenly in the mould of column concaveconvex structure, the temperature of mould is 25 ℃, cooling forming is promptly.
Adopt rotational viscosimeter to detect the viscosity of the resiliently-mounted floor of preparation;
Adopt fusion index instrument to detect the melting index of the resiliently-mounted floor of preparation;
Adopt sclerometer, detect the hardness of the resiliently-mounted floor of preparation according to rubber performance standard test methods (ASTM-D2240);
Adopt displacement method, measure the proportion of the resiliently-mounted floor of preparation according to the ASTM-D792 method;
Detect elongation, 100% tensile strength, 300% tensile strength and the tensile strength of the resiliently-mounted floor of preparation according to vulcanized rubber and thermoplastic elastomer tension test (ASTM-D412) method;
Detect the tear strength of the resiliently-mounted floor of preparation according to the test method (ASTM-D624) of the tearing toughness of the ageing resistance of the thermoplastic elastic of rubber;
Adopt the wear-resisting tester of DIN, measure the frictional dissipation of the resiliently-mounted floor of preparation according to untreated rubber and elastomeric abrasion detection method (DIN 53516-1987);
Detect the anti-UV performance of anti-xanthochromia of the resiliently-mounted floor of preparation as follows; The resiliently-mounted floor of preparation placed under 300 watts the blue lamp of Ou Si (simulated solar light irradiation), shine 24 hours, observe the colour-change situation on floor, the floor nondiscoloration that present embodiment prepares.
Detect the low temperature cold tolerance of the resiliently-mounted floor of preparation as follows: bend the floor under-6 ℃ repeatedly, degree of crook repeats 100000 times from 0 ° to 90 °; At-10 ℃, bend the floor repeatedly, degree of crook repeats 60000 times from 0 ° to 90 °, detects the crack conditions on floor, and do not rupture in the floor of present embodiment preparation.
Measurement result sees Table 1.
Embodiment 2
1, gets the raw materials ready according to following weight proportion
Thermoplastic polyurethane 100kg
Red toner 5kg
Flow improver 0.1kg
UV light absorber 0.5kg
Fire retardant 5kg
Wherein, the hardness of thermoplastic polyurethane is 90A, and melting index is 1500Pa/s; Flow improver is the polyethylene micropowder wax 3620 of ultramicro powder, and its particle diameter is 7.5-9.5um, and acid number is 0mgKOH/g, density 0.96-0.98g/cm
3, dropping point is 122-127 ℃; UV light absorber is 2-(2 '-hydroxyl-5 '-uncle's octyl phenyl) benzotriazole; Fire retardant is hydrated aluminum oxide (Al
2O
33H
2O);
2, all raw materials are joined in the baking oven, stir, heat up and toast, make the combination drying material, wherein storing temperature is 90 ℃, and the water ratio of dried material is 10%;
3, the dry mixed material is joined in the injector, heat temperature raising to 190 ℃ makes the fusion of dry mixed material;
4, with the nozzle high pressure of fused material by injector, inject 330mm * 330mm fast, square, evenly in the mould of column concaveconvex structure, the temperature of mould is 50 ℃, is cooled to room temperature, moulding is promptly.
Adopt rotational viscosimeter to detect the viscosity of the resiliently-mounted floor of preparation;
Adopt fusion index instrument (MP600 fusion index instrument) to detect the melting index of the resiliently-mounted floor of preparation;
Adopt sclerometer, detect the hardness of the resiliently-mounted floor of preparation according to rubber performance standard test methods (ASTM-D2240);
Adopt displacement method, measure the proportion of the resiliently-mounted floor of preparation according to the ASTM-D792 method;
Detect elongation, 100% tensile strength, 300% tensile strength and the tensile strength of the resiliently-mounted floor of preparation according to vulcanized rubber and thermoplastic elastomer tension test (ASTM-D412) method;
Detect the tear strength of the resiliently-mounted floor of preparation according to the test method (ASTM-D624) of the tearing toughness of the ageing resistance of the thermoplastic elastic of rubber;
Adopt the wear-resisting tester of DIN, measure the frictional dissipation of the resiliently-mounted floor of preparation according to untreated rubber and elastomeric abrasion detection method (DIN 53516-1987);
Detect the anti-UV performance of anti-xanthochromia of the resiliently-mounted floor of preparation as follows; The resiliently-mounted floor of preparation placed under 300 watts the blue lamp of Ou Si (simulated solar light irradiation), shine 24 hours, observe the colour-change situation on floor, the floor nondiscoloration that present embodiment prepares.
Detect the low temperature cold tolerance of the resiliently-mounted floor of preparation as follows: bend the floor under-6 ℃ repeatedly, degree of crook repeats 100000 times from 0 ° to 90 °; At-10 ℃, bend the floor repeatedly, degree of crook repeats 60000 times from 0 ° to 90 °, detects the crack conditions on floor, and do not rupture in the floor of present embodiment preparation.
Measurement result sees Table 1.
Embodiment 3
1, gets the raw materials ready according to following weight proportion
Thermoplastic polyurethane 100kg
Green toner 2kg
Flow improver 0kg
UV light absorber 0.3kg
Fire retardant 1kg
Wherein, the hardness of thermoplastic polyurethane is 97A, and melting index is 1260.1Pa/s; Flow improver is the poly-tetrafluoro micro mist wax 9610f of ultramicro powder, and its fineness 95% is less than 14 microns, and fusing point is 140 ℃; UV light absorber is 2-(2 '-hydroxyl-the 3 '-tertiary butyl-5 '-aminomethyl phenyl)-5-chlorinated benzotriazole; Fire retardant is an ammonium polyphosphate, and wherein the nitrogen content of ammonium polyphosphate is 23%, phosphorus content 〉=20%, molecular weight＞10
5
2, all raw materials are joined in the baking oven, stir, heat up and toast, make the combination drying material, wherein storing temperature is 110 ℃, and the water ratio of dried material is 5%;
3, the dry mixed material is joined in the injector, heat temperature raising to 180 ℃ makes the fusion of dry mixed material;
4, with the nozzle high pressure of fused material by injector, inject 330mm * 330mm fast, square, evenly in the mould of column concaveconvex structure, the temperature of mould is 40 ℃, is cooled to room temperature, moulding is promptly.
Adopt rotational viscosimeter to detect the viscosity of the resiliently-mounted floor of preparation;
Adopt fusion index instrument to detect the melting index of the resiliently-mounted floor of preparation;
Adopt sclerometer, detect the hardness of the resiliently-mounted floor of preparation according to rubber performance standard test methods (ASTM-D2240);
Adopt displacement method, measure the proportion of the resiliently-mounted floor of preparation according to the ASTM-D792 method;
Detect elongation, 100% tensile strength, 300% tensile strength and the tensile strength of the resiliently-mounted floor of preparation according to vulcanized rubber and thermoplastic elastomer tension test (ASTM-D412) method;
Detect the tear strength of the resiliently-mounted floor of preparation according to the test method (ASTM-D624) of the tearing toughness of the ageing resistance of the thermoplastic elastic of rubber;
Adopt the wear-resisting tester of DIN, measure the frictional dissipation of the resiliently-mounted floor of preparation according to untreated rubber and elastomeric abrasion detection method (DIN 53516-1987);
Detect the anti-UV performance of anti-xanthochromia of the resiliently-mounted floor of preparation as follows; The resiliently-mounted floor of preparation placed under 300 watts the blue lamp of Ou Si (simulated solar light irradiation), shine 24 hours, observe the colour-change situation on floor, the floor nondiscoloration that present embodiment prepares.
Detect the low temperature cold tolerance of the resiliently-mounted floor of preparation as follows: bend the floor under-6 ℃ repeatedly, degree of crook repeats 100000 times from 0 ° to 90 °; At-10 ℃, bend the floor repeatedly, degree of crook repeats 60000 times from 0 ° to 90 °, detects the crack conditions on floor, and do not rupture in the floor of present embodiment preparation.
Measurement result sees Table 1.
Embodiment 4
1, gets the raw materials ready according to following weight proportion
Thermoplastic polyurethane 100kg
Yellow toner 3kg
Flow improver 0.5kg
UV light absorber 0.1kg
Fire retardant 1kg
Wherein, the hardness of thermoplastic polyurethane is 80A, and melting index is 1000Pa/s; Flow improver is micro mist wax TF1778, and its maximum particle size DV50 is 6 μ m, and fusing point is 102 ℃, and density is 0.98g/cm
3, acid number＜1mgKOH/g; UV light absorber is 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole; Fire retardant is for being 3.5 hydration zinc borates (2Zn O3B
2O
33.5H
2O)
2, all raw materials are joined in the baking oven, stir, heat up and toast, make the combination drying material, wherein storing temperature is 105 ℃, and the water ratio of dried material is 8%;
3, the dry mixed material is joined in the injector, heat temperature raising to 150 ℃ makes the fusion of dry mixed material;
4, with the nozzle high pressure of fused material by injector, inject 330mm * 330mm fast, square, evenly in the mould of column concaveconvex structure, the temperature of mould is 30 ℃, is cooled to room temperature, moulding is promptly.
Adopt rotational viscosimeter to detect the viscosity of the resiliently-mounted floor of preparation;
Adopt fusion index instrument to detect the melting index of the resiliently-mounted floor of preparation;
Adopt sclerometer, detect the hardness of the resiliently-mounted floor of preparation according to rubber performance standard test methods (ASTM-D2240);
Adopt displacement method, measure the proportion of the resiliently-mounted floor of preparation according to the ASTM-D792 method;
Detect elongation, 100% tensile strength, 300% tensile strength and the tensile strength of the resiliently-mounted floor of preparation according to vulcanized rubber and thermoplastic elastomer tension test (ASTM-D412) method;
Detect the tear strength of the resiliently-mounted floor of preparation according to the test method (ASTM-D624) of the tearing toughness of the ageing resistance of the thermoplastic elastic of rubber;
Adopt the wear-resisting tester of DIN, measure the frictional dissipation of the resiliently-mounted floor of preparation according to untreated rubber and elastomeric abrasion detection method (DIN 53516-1987);
Detect the anti-UV performance of anti-xanthochromia of the resiliently-mounted floor of preparation as follows; The resiliently-mounted floor of preparation placed under 300 watts the blue lamp of Ou Si (simulated solar light irradiation), shine 24 hours, observe the colour-change situation on floor, the floor nondiscoloration that present embodiment prepares.
Detect the low temperature cold tolerance of the resiliently-mounted floor of preparation as follows: bend the floor under-6 ℃ repeatedly, degree of crook repeats 100000 times from 0 ° to 90 °; At-10 ℃, bend the floor repeatedly, degree of crook repeats 60000 times from 0 ° to 90 °, detects the crack conditions on floor, and do not rupture in the floor of present embodiment preparation.
Measurement result sees Table 1.
The performance test results of table 1 resiliently-mounted floor
Table 1 detected result shows:
1, the tensile strength of the resiliently-mounted floor of the present invention's preparation is big, reaches 250-513kg/cm
2More than, floor easy fracture not under horizontal force action;
2, the elongation height on floor reaches 347-569%, shows that the elasticity on floor is strong, can increase frictional force and torsion when being subjected to horizontal applied force, and the floor is subjected to replying easily after the external force effect, and is not yielding;
3, the floor tear strength height of the present invention's preparation reaches 157kg/cm
2More than, show that floor of the present invention is difficult for tearing under tear edge, shear action;
4, polyurethane elastic floor board of the present invention also has good abrasion resistance, and frictional dissipation is low, is lower than 85.128mm
3
5, resiliently-mounted floor of the present invention has stronger fast light discoloration, weathering resistance; Anti-low temperature cold tolerance is strong, and under low temperature condition, the floor is easy fracture not.
Claims (10)
1. polyurethane elastic floor board is characterized in that being made up of following raw materials in weight portion:
Thermoplastic polyurethane 100
Toner 0-5
Flow improver 0-0.5
UV light absorber 0.1-0.5
Fire retardant 1-5.
2. resiliently-mounted floor as claimed in claim 1 is characterized in that the weight part proportion optimization of described raw material is:
Thermoplastic polyurethane 100
Toner 2-5
Flow improver 0.1-0.5
UV light absorber 0.1-0.3
Fire retardant 1-2.
3. resiliently-mounted floor as claimed in claim 1 or 2, the molecular weight that it is characterized in that described thermoplastic polyurethane is 700-5000, hardness is 70A-72D.
4. resiliently-mounted floor as claimed in claim 1 or 2 is characterized in that described flow improver selects one or more in micro mist wax, blended wax, polyethylene wax, the oxidized polyethlene wax.
5. resiliently-mounted floor as claimed in claim 1 or 2 is characterized in that described UV light absorber selects one or more in 2-hydroxyl-4-own octyloxy-2 benzophenone, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole, 2-(2 '-hydroxyl-5 '-uncle's octyl phenyl) benzotriazole or 2-(2 '-hydroxyl-the 3 '-tertiary butyl-5 '-the aminomethyl phenyl)-5-chlorinated benzotriazole.
6. resiliently-mounted floor as claimed in claim 1 or 2 is characterized in that described fire retardant selects one or more in zinc borate, aluminium hydroxide, the ammonium polyphosphate.
7. the preparation method of a polyurethane elastic floor board comprises following step in sequence:
1) prepare raw material according to following weight part proportioning:
Thermoplastic polyurethane 100
Toner 0-5
Flow improver 0-0.5
UV light absorber 0.1-0.5
Fire retardant 1-5
2) toast after whole raw materials is mixed, make water ratio≤10% of mixture;
3) heat temperature raising makes the mixture fusion after the baking, then the fused mixture is extruded or is expelled in the mould, and cooling forming forms.
8. preparation method as claimed in claim 7 is characterized in that step 2) described in storing temperature be 90-110 ℃.
9. as claim 7 or 8 described preparation methods, it is characterized in that the mixture melt temperature described in the step 3) is 150-190 ℃.
10. as claim 7 or 8 described preparation methods, it is characterized in that step 2) described in water ratio be 5-10%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103937227A (en) * | 2014-04-22 | 2014-07-23 | 苏州羽帆新材料科技有限公司 | Flame-retardant stretch-proof plastic |
| CN104877106A (en) * | 2015-06-05 | 2015-09-02 | 苏州市湘园特种精细化工有限公司 | Flame-retardant rigid foam material and preparation method thereof |
| CN105019256A (en) * | 2015-08-13 | 2015-11-04 | 长沙五犇新材料科技有限公司 | Flame-retarding composite floor leather resisting abrasion and skid and manufacturing technology and application thereof |
| CN105275187A (en) * | 2015-11-10 | 2016-01-27 | 龙海市奥一体育用品有限公司 | Novel and environmentally-friendly type wholly-TPU sports flooring and preparation method thereof |
| CN108456415A (en) * | 2018-04-16 | 2018-08-28 | 合肥欧克斯新型建材有限公司 | A kind of compound floor tile of insulation antiseptic and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937227A (en) * | 2014-04-22 | 2014-07-23 | 苏州羽帆新材料科技有限公司 | Flame-retardant stretch-proof plastic |
| CN104877106A (en) * | 2015-06-05 | 2015-09-02 | 苏州市湘园特种精细化工有限公司 | Flame-retardant rigid foam material and preparation method thereof |
| CN105019256A (en) * | 2015-08-13 | 2015-11-04 | 长沙五犇新材料科技有限公司 | Flame-retarding composite floor leather resisting abrasion and skid and manufacturing technology and application thereof |
| CN105275187A (en) * | 2015-11-10 | 2016-01-27 | 龙海市奥一体育用品有限公司 | Novel and environmentally-friendly type wholly-TPU sports flooring and preparation method thereof |
| CN108456415A (en) * | 2018-04-16 | 2018-08-28 | 合肥欧克斯新型建材有限公司 | A kind of compound floor tile of insulation antiseptic and preparation method thereof |
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