CN103483801A - Thermoplastic polyurethane composite material and preparation method thereof - Google Patents
Thermoplastic polyurethane composite material and preparation method thereof Download PDFInfo
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- CN103483801A CN103483801A CN201310451321.9A CN201310451321A CN103483801A CN 103483801 A CN103483801 A CN 103483801A CN 201310451321 A CN201310451321 A CN 201310451321A CN 103483801 A CN103483801 A CN 103483801A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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Abstract
The invention is applicable to the technical field of macromolecular materials and provides a thermoplastic polyurethane composite material and a preparation method thereof. The thermoplastic polyurethane composite material comprises the following components: thermoplastic polyurethane (TPU), basalt fiber, a compatilizer, an antioxidant and a lubricating agent. The thermoplastic polyurethane composite material takes the TPU as a matrix component, and each component generates synergistic effect in a melted extrusion process, so that the thermoplastic polyurethane composite material has high mechanical properties and heat resistance, such as tensile property and notch shock resistance, in particular the tensile property is excellent. The thermoplastic polyurethane composite material is simple in process, takes the basalt fiber serves as a reinforced material and is natural and environment-friendly. The production condition is easy to control, the cost is low, and the requirement on equipment is low, so the thermoplastic polyurethane composite material is suitable for industrialized production.
Description
Technical field
The invention belongs to technical field of polymer materials, relate in particular to a kind of thermoplastic polyurethane matrix material and preparation method thereof.
Background technology
Thermoplastic polyurethane (TPU) is a class by inconsistent hard section and soft section (A-B) N-shaped linear multi-block polymkeric substance alternately formed on thermodynamics, has unique micro phase separation structure, so the suitable excellence of its physical and mechanical properties.Its outstanding characteristics are that hardness is large, intensity is high, good springiness, low temperature resistant, excellent in abrasion resistance, ozone resistance are fabulous, good oil resistant, chemical-resistant resistance and environmental resistance are arranged, therefore, be widely used in injection moulding, extrude, roll and be dissolved into the processing modes such as solution-type resin, it makes the scope that product has been contained industrial application and civilian requisite.Thermoplastic polyurethane composite material by adopting glass fibre commonly used is as enhancement component, but, because the consistency of thermoplastic polyurethane and glass fibre is poor, thereby cause take the thermoplastic polyurethane matrix material machinery performance deficiency that glass fibre is enhancement component, be embodied in the poor performance such as tensile strength, the front degree of notch shock, and resistance toheat is bad, seriously restricted the application of thermoplastic polyurethane matrix material.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of thermoplastic polyurethane matrix material, is intended to solve prior art thermoplastic polyurethane matrix material machinery poor performance, the bad problem of resistance toheat.
Another purpose of the embodiment of the present invention is to provide a kind of technique simple, and condition is easily controlled, and production cost is low, can carry out the preparation method of the thermoplastic polyurethane matrix material of industrialization production.
The embodiment of the present invention is achieved in that a kind of thermoplastic polyurethane matrix material, comprises the component of following parts by weight:
And a kind of preparation method of thermoplastic polyurethane matrix material, comprise the steps:
Take respectively each component according to above-mentioned thermoplastic polyurethane composite-material formula;
Above-mentioned each component except described basalt fibre taken is carried out to mixing treatment, obtain mixture;
Just described mixture and basalt fibre add from different spouts respectively, are melt extruded granulation.
Thermoplastic polyurethane matrix material provided by the invention, added good mechanical property, especially modulus in tension is high, the temperature tolerance value is high, the basalt fibre of good heat insulating and environmental protection is as strongthener, make thermoplastic polyurethane matrix material and the compound polyurethane material that uses the simple glass fiber compare, mechanical property-as tensile strength, resistance to impact shock obviously increase, resistance toheat is improved.
The preparation method of thermoplastic polyurethane matrix material provided by the invention, melt extruded processing after only each component need being mixed, and preparation technology is simple; The basalt fibre component is separated to feeding and melt extruded, make the recipe ingredient of thermoplastic polyurethane matrix material mix, stable performance; Melt extrude technical maturity simultaneously, easily control, production efficiency is high.Melt extrude technical maturity simultaneously, easily control, production efficiency is high.
The accompanying drawing explanation
Fig. 1 is the process flow diagram of embodiment of the present invention thermoplastic polyurethane matrix material Preparation Method.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of thermoplastic polyurethane matrix material, comprises the component of following parts by weight:
TPU is as the basal component of embodiment of the present invention thermoplastic polyurethane matrix material, have that hardness is large, intensity is high, good springiness, low temperature resistant, excellent in abrasion resistance, characteristics that ozone resistance is fabulous, simultaneously, it has good oil resistant, chemical-resistant resistance and environmental resistance, therefore, be widely used in injection moulding, extrude, roll and be dissolved into the processing modes such as solution-type resin.In specific embodiment, the content of above-mentioned basalt fibre can be the concrete parts by weight such as 52 parts, 60 parts, 65 parts, 70 parts, 75 parts, 80 parts, 85 parts, 90 parts, 93 parts.
Basalt fibre is a kind of novel inorganic environment-friendly and green high performance fibre material, it take the natural volcano extrusive rock be comprised of oxide compounds such as silicon-dioxide, aluminum oxide, calcium oxide, ferric oxide and titanium dioxide is raw material, after 1450 ℃～1500 ℃ meltings of high temperature, the continuous fibre of making by the platinum rhodium bushing.Not only physical strength is high for basalt fibre, good stability, life-span are long, but also there is the multiple excellent properties such as high temperature resistant, electrical insulating property, anticorrosive, flame resistant, with glass fibre, compare, the modulus in tension of basalt fibre is higher more than 20% than glass fibre, the use temperature scope is wide, and high temperature resistant degree can be up to 960 ℃.In addition, basalt fibre has pure natural property, and the waste that production technique produces is few, and environmental pollution is little, after product abandonment, can directly proceed in ecotope, and without any harm, thereby be a kind of genuine green, environment-friendly materials.
For the use birthday noodle of the mechanical property that can effectively increase the thermoplastic polyurethane matrix material and resistance toheat, the described thermoplastic polyurethane matrix material of raising, meet environmental protection concept simultaneously, in the embodiment of the present invention, adopt mechanical property, resistance to elevated temperatures, suction ripple and shielding property, acid-proof alkaline, sound-proofing properties all well basalt fibre as enhancement component.
Thereby in order to improve better the consistency of basalt fibre and thermoplastic polyurethane with described compatilizer synergistic, and then the mechanical property of raising matrix material, the embodiment of the present invention is preferably processed described basalt fibre with organic silane compound or organic titanic compound, obtain the basalt fibre that diameter, length are more suitable.The described method that basalt fibre is processed with organic silane compound or organic titanic compound is unrestricted, and method commonly used in this area is all in the protection domain of the embodiment of the present invention.Wherein, described organic silane compound is at least one in γ-aminopropyl triethoxysilane, γ-glycidoxypropyltrime,hoxysilane; Described organic titanic compound is at least one in monoalkoxy lipid acid titanic acid ester, monoalkoxy lipid acid and phosphoric acid ester titanic acid ester.When the above-mentioned organic silane compound of selecting two or more or organic titanic compound, the weight percent of its each composition is unrestricted.The single fiber diameter of described basalt fibre is 5～23 microns, and length is 1～10 millimeter.In specific embodiment, the content of above-mentioned basalt fibre can be the concrete parts by weight such as 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts.
Above-mentioned compatilizer component is as one of matrix component, and it is for increasing the consistency between basalt fibre and thermoplastic polyester ammonia, thereby improves better mechanical property and the resistance toheat of thermoplastic polyurethane matrix material.As the preferred embodiment of the present invention, described compatilizer is maleic anhydride-styrene copolymers (SMA).In specific embodiment, the content of described compatilizer can be the concrete parts by weight such as 2.0 parts, 2.5 parts, 3.0 parts, 3.5 parts, 4.0 parts, 4.5 parts, 5.0 parts, 5.5 parts, 6.0 parts.
In order to prevent described thermoplastic polyurethane matrix material generation oxidation, improve the antioxidant property of above-described embodiment thermoplastic polyurethane matrix material, extend its work-ing life, the embodiment of the present invention has been added oxidation inhibitor in the thermoplastic polyurethane matrix material.Described oxidation inhibitor is N, N '-1, and [3-(3 for 6-inferior hexyl-bis-, the 5-di-tert-butyl-hydroxy phenyl) propionic acid amide], four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester, three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, 1,3,5-tri-(the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H)-one or more in triketone.This antioxidant content can be the concrete parts by weight such as 0.05 part, 0.1 part, 0.15 part, 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part, 0.5 part, 0.55 part, 0.6 part.
Usually there is higher viscosity after melting due to superpolymer, in the course of processing, between the superpolymer of melting with and and the processor surface between easily produce friction, the former is called internal friction, the latter is called external friction.Internal friction will increase the melt-flow viscosity of polymkeric substance, reduce its mobility, when serious, can cause the overheated, aging of material; External friction makes to adhere between polymer melt and processing units and other contact material surfaces, with temperature, raises, and frictional coefficient enlarges markedly.After goods are deviate from from mould, it is coarse that product surface becomes, and lacks gloss or flow liner occurs.Therefore in order to reduce this two classes friction, improve oilness, reduce friction, reduce the Interface Adhesion performance, make the thermoplastic polyurethane matrix material smooth simultaneously, in the described thermoplastic polyurethane matrix material of the embodiment of the present invention, add lubricant.As preferred embodiment, described lubricant is one or more in tetramethylolmethane stearate, polysiloxane.The content of this lubricant can be the concrete parts by weight such as 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part, 0.5 part, 0.55 part, 0.6 part, 0.65 part, 0.7 part, 0.75 part, 0.8 part, 0.85 part, 0.9 part, 0.95 part, 1.0 parts.
The thermoplastic polyurethane matrix material that the embodiment of the present invention provides, added good mechanical property, especially tensile strength is high, the temperature tolerance value is high, the basalt fibre of good heat insulating and environmental protection is as component, make thermoplastic polyurethane matrix material and the compound polyurethane material that uses the simple glass fiber compare, mechanical property-as tensile strength, resistance to impact shock obviously increase, resistance toheat is improved; And described basalt fibre is after organosilane or organic titanic compound are processed, under the synergistic effect of compatilizer, can significantly improves the consistency between itself and thermoplastic polyurethane, thereby further improve the mechanical property of matrix material.
The described thermoplastic polyurethane matrix material of the embodiment of the present invention, can prepare by the following method, and certainly, the method that also can obtain this thermoplastic polyurethane matrix material according to other prepares.
Accordingly, the embodiment of the present invention provides a kind of preparation method of thermoplastic polyurethane matrix material, comprise the steps, as shown in Figure 1:
S01. take recipe ingredient: according to above-mentioned thermoplastic polyurethane composite-material formula, take respectively each component;
S02. prepare mixture: above-mentioned each component except described basalt fibre taken is carried out to mixing treatment, obtain mixture;
S03. melt extruding of material: just described mixture and basalt fibre add from different spouts respectively, are melt extruded granulation.
Particularly, in above-mentioned steps S01, each component preferred content in the formula of thermoplastic polyurethane matrix material and formula and kind as described above, in order to save length, do not repeat them here.
In above-mentioned steps S02, each component except basalt fibre is carried out to the time of mixing treatment and can adjust flexibly according to actual production conditions, as long as each component premix fully.As preferred embodiment, the combination treatment time is 10～15 minutes.
In above-mentioned steps S03, the mixture except basalt fibre and basalt fibre are added from different spouts respectively, the interpolation order of each component is unrestricted.In the embodiment of the present invention, because the basalt fibre charging capacity is larger, when when same feeder mouth adds all components of thermoplastic polyurethane matrix material, may cause that blanking is inhomogeneous, the forcing machine fluctuation of current is large, thereby cause the thermoplastic polyurethane matrix material of producing unstable properties or inhomogenous problem to occur.Therefore, in order preventing the above-described problem from occurring, in the embodiment of the present invention, the mixture except basalt fibre to be added from main spout, basalt fibre to be added from the side spout.
In this step S03, above-mentioned blend melt extrude the technique that can adopt this area routine.As preferred embodiment, both melt extruding can adopt twin screw extruder to extrude.By to finding time and the control of temperature, make between each component the stable crystal of rear formation of fully having an effect, obtain the thermoplastic polyurethane matrix material.In excellent embodiment, the temperature melt extruded is 170-220 ℃, and the time melt extruded is that 2～5 minutes compounds time of delivery in screw rod is 2～5 minutes, and pressure is 12～20MPa.
Certainly, the material after step S03 melt extrudes can also comprise the steps such as tie rod, cooling, granulation processing.Can also adjust according to practical application the profile of thermoplastic polyurethane matrix material, as granular, strip or block etc.
The preparation method of the thermoplastic polyurethane matrix material that the embodiment of the present invention provides, melt extruded processing after only each component need being mixed, and preparation technology is simple; The basalt fibre component is separated to feeding and melt extruded, make the recipe ingredient of thermoplastic polyurethane matrix material mix, stable performance; Melt extrude technical maturity simultaneously, easily control, production efficiency is high.Melt extrude technical maturity simultaneously, easily control, production efficiency is high.
Formula and the preparation method of concrete polyphenylene oxide alloy material of now take is example, and the embodiment of the present invention is further elaborated.In following each embodiment, in an embodiment, thermoplastic polyurethane can be selected the TPU1185,1195 etc. of Yantai Wan Hua company; Oxidation inhibitor can be selected 3 of Switzerland Ciba company, 5-di-tert-butyl-4-hydroxy phenylpropionic acid octadecyl ester (Irganox1076), three (2.4-di-tert-butyl-phenyl) phosphorous acid ester (Irganox168), 1, and 2-two (3,5-di-t-butyl-4-hydroxyl-phenylpropionic acid) 1 of hydrazine (Irganox1098), the special company of U.S.'s cyanogen, 3,5-tri-(the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H)-triketone (Cyanox1790); Lubricant can be selected the tetramethylolmethane stearate (PETS) of U.S. Long Sha company or the polysiloxane of TaiWan, China Ying Bao company; Glass fibre is selected the alkali-free short glass fiber 534A of megalith company.
Embodiment 1
A kind of thermoplastic polyurethane matrix material, the formula constituent that it comprises and the content of the corresponding component embodiment 1 in 1 that sees the following form.Wherein, TPU is TPU1195, and compatilizer is SMA, and oxidation inhibitor is Cyanox1790, and lubricant is polysiloxane.
The preparation method of thermoplastic polyurethane matrix material:
(1) take each component by 1 formula of embodiment in table 1;
(2) with reference to the step (2) of embodiment 1, above-mentioned each component except described basalt fibre taken is placed in to the middling speed stirrer for mixing and processes 15 minutes, obtain mixture;
(3) with reference to the step (3) of embodiment 1; 5 parts of basalt fibres are added by the mode of side feeding, and through melt blending, extruding pelletization becomes matrix material.Wherein each zone temperatures is: 200 ℃, 180 190 200 200 ℃， 5th district, ℃， 4th district, ℃， 3rd district, ℃， 2nd district, a district, and the residence time is 3min, pressure is 16MPa.
Embodiment 2
A kind of thermoplastic polyurethane matrix material, the formula constituent that it comprises and the content of the corresponding component embodiment 1 in 1 that sees the following form.Wherein, TPU is TPU1195, and compatilizer is SMA, Irganox1076 and Irganox168 that oxidation inhibitor is 1:1 for weight ratio, polysiloxane and tetramethylolmethane stearate that lubricant is 1:1 for weight ratio.
The preparation method of thermoplastic polyurethane matrix material:
(1) take each component by 1 formula of embodiment in table 1;
(2) with reference to the step (2) of embodiment 1, above-mentioned each component except described basalt fibre taken is placed in to the middling speed stirrer for mixing and processes 15 minutes, obtain mixture;
(3) with reference to the step (3) of embodiment 1; 10 parts of basalt fibres are added by the mode of side feeding, and through melt blending, extruding pelletization becomes matrix material.Wherein each zone temperatures is: 200 ℃, 180 190 200 200 ℃， 5th district, ℃， 4th district, ℃， 3rd district, ℃， 2nd district, a district, and the residence time is 3min, pressure is 16MPa.
Embodiment 3
A kind of thermoplastic polyurethane matrix material, the formula constituent that it comprises and the content of the corresponding component embodiment 1 in 1 that sees the following form.Wherein, TPU is TPU1185, and compatilizer is SMA, and oxidation inhibitor is Irganox1076 and the Irganox168 that weight ratio is 1:1, and lubricant is polysiloxane and the tetramethylolmethane stearate that weight ratio is 1:1.
The preparation method of thermoplastic polyurethane matrix material:
(1) take each component by 1 formula of embodiment in table 1;
(2) with reference to the step (2) of embodiment 1, above-mentioned each component except described basalt fibre taken is placed in to the middling speed stirrer for mixing and processes 15 minutes, obtain mixture;
(3) with reference to the step (3) of embodiment 1; 20(part basalt fibre is added by the mode of side feeding, and through melt blending, extruding pelletization becomes matrix material.Wherein each zone temperatures is: 210 ℃, 175 190 200 210 ℃， 5th district, ℃， 4th district, ℃， 3rd district, ℃， 2nd district, a district, and the residence time is 3min, pressure is 15MPa.
Embodiment 4
A kind of thermoplastic polyurethane matrix material, the formula constituent that it comprises and the content of the corresponding component embodiment 1 in 1 that sees the following form.Wherein, TPU is TPU1195, and compatilizer is SMA, and oxidation inhibitor is Irganox1098 and the Irganox168 that weight ratio is 1:1, and lubricant is polysiloxane.
The preparation method of thermoplastic polyurethane matrix material:
(1) take each component by 1 formula of embodiment in table 1;
(2) with reference to the step (2) of embodiment 1, above-mentioned each component except described basalt fibre taken is placed in to the middling speed stirrer for mixing and processes 15 minutes, obtain mixture;
(3) with reference to the step (3) of embodiment 1; 30 parts of basalt fibres are added by the mode of side feeding, and through melt blending, extruding pelletization becomes matrix material.Wherein each zone temperatures is: 190 ℃, 195 205 210 190 ℃， 5th district, ℃， 4th district, ℃， 3rd district, ℃， 2nd district, a district, and the residence time is 3min, pressure is 14MPa.
Embodiment 5
A kind of thermoplastic polyurethane matrix material, the formula constituent that it comprises and the content of the corresponding component embodiment 1 in 1 that sees the following form.Wherein, TPU is TPU1185, and compatilizer is SMA, and oxidation inhibitor is Irganox1076 and the Irganox168 that weight ratio is 1:1, and lubricant is polysiloxane.
The preparation method of thermoplastic polyurethane matrix material:
(1) take each component by 1 formula of embodiment in table 1;
(2) with reference to the step (2) of embodiment 1, above-mentioned each component except described basalt fibre taken is placed in to the middling speed stirrer for mixing and processes 15 minutes, obtain mixture;
(3) with reference to the step (3) of embodiment 1; 40 parts of basalt fibres are added by the mode of side feeding, and through melt blending, extruding pelletization becomes matrix material.Wherein each zone temperatures is: 195 ℃, 170 195 210 190 ℃， 5th district, ℃， 4th district, ℃， 3rd district, ℃， 2nd district, a district, and the residence time is 3min, pressure is 16MPa.
Comparison example 1
A kind of thermoplastic polyurethane matrix material, the formula constituent that it comprises and the content of the corresponding component comparison example 1 in 1 that sees the following form.Wherein, TPU is TPU1185, and compatilizer is SMA, and oxidation inhibitor is Irganox1076 and the Irganox168 that weight ratio is 1:1, and lubricant is polysiloxane and the tetramethylolmethane stearate that weight ratio is 1:1.
The preparation method of thermoplastic polyurethane matrix material:
(1) take each component by 1 formula of comparison example in table 1;
(2) with reference to the step (2) of embodiment 1, above-mentioned each component except described basalt fibre taken is placed in to the middling speed stirrer for mixing and processes 15 minutes, obtain mixture;
(3) with reference to the step (3) of embodiment 1; 20 parts of glass fibre are added by the mode of side feeding, and through melt blending, extruding pelletization becomes matrix material.Wherein each zone temperatures is: 210 ℃, 175 190 200 210 ℃， 5th district, ℃， 4th district, ℃， 3rd district, ℃， 2nd district, a district, and the residence time is 3min, pressure is 15MPa.
Performance test:
Thermoplastic polyurethane matrix material and the Comparative Examples 1 of above-described embodiment 1 to embodiment 5 preparation are prepared to the thermoplastic polyurethane matrix material respectively at 80-90 ℃ of dry 4-6h of gas blower drying oven, then injection moulding prepares test bars and goods, wherein, in injection molding process, keep the mould temperature between 50-80 ℃.
The correlated performance testing method is as follows:
(1) tensile strength: tensile strength is tested by the GB/T1040 standard, and specimen types is the I type, and batten size (mm): 170(is long) * (20 ± 0.2) (end width) * (4 ± 0.2) (thickness), draw speed is 50mm/min;
(2) elongation at break: elongation at break is tested by the GB/T1040 standard, and specimen types is the I type, and batten size (mm): 170(is long) * (20 ± 0.2) (end width) * (4 ± 0.2) (thickness), draw speed is 50mm/min;
(3) notched Izod impact strength: notched Izod impact strength is tested by ASTM D-256 standard.Specimen types is the I type, specimen size (mm): (80 ± 2) * (10 ± 0.2) * (4 ± 0.2); The breach type is category-A, and the breach residual thickness is 3.2mm.
Measure performance.Measure structure and see following table 2.
Table 1
Table 2
Known by test data in table 2, prepared by above-described embodiment 1-5 thermoplastic polyurethane matrix material, along with the increase of basalt fibre content, TPU matrix material tensile strength is improved significantly; Though its shock strength descends to some extent, but still, in higher level, reach 757J/m
2.This shows, basalt fibre can effectively improve the physical strength of thermoplastic polyurethane; Simultaneously, because the TPU base material has excellent toughness, given prepared TPU matrix material and there is the high-strength and high ductility characteristic; From embodiment 3 and comparative example 1, can find out, basalt fibre strengthens TPU and compares glass enhancing TPU, all more outstanding on tensile strength, elongation at break and notched Izod impact strength performance.Owing to having above-mentioned feature, the TPU matrix material that the embodiment of the present invention provides can be widely used in the fields such as body-building apparatus, outdoor sports goods, shock resistance mechanical fitting.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a thermoplastic polyurethane matrix material comprises the component of following parts by weight:
2. thermoplastic polyurethane matrix material as claimed in claim 1, is characterized in that, described basalt fibre is the basalt fibre of processing with organic silane compound or organic titanic compound.
3. thermoplastic polyurethane matrix material as claimed in claim 2, is characterized in that, described organic silane compound is at least one in γ-aminopropyl triethoxysilane, γ-glycidoxypropyltrime,hoxysilane.
4. as thermoplastic polyurethane matrix material as described in claim 2 or 3, it is characterized in that, described organic titanic compound is at least one in monoalkoxy lipid acid titanic acid ester, monoalkoxy lipid acid, phosphoric acid ester titanic acid ester.
5. thermoplastic polyurethane matrix material as described in as arbitrary as claim 1-3 is characterized in that the single fiber diameter of described basalt fibre is the 5-23 micron, and length is the 1-10 millimeter.
6. thermoplastic polyurethane matrix material as described in as arbitrary as claim 1-3 is characterized in that described compatilizer is maleic anhydride-styrene copolymers.
7. thermoplastic polyurethane matrix material as described in as arbitrary as claim 1-3, it is characterized in that, described oxidation inhibitor is N, N '-1,6-inferior hexyl-bis-[3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid amide], four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester, three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, 1,3,5-tri-(the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H)-at least one in triketone.
8. thermoplastic polyurethane matrix material as described in as arbitrary as claim 1-3 is characterized in that described lubricant is at least one in tetramethylolmethane stearate, polysiloxane.
9. the preparation method of a thermoplastic polyurethane matrix material, comprise the steps:
Take respectively each component according to the described thermoplastic polyurethane composite-material formula of claim 1-8;
Above-mentioned each component except described basalt fibre taken is carried out to mixing treatment, obtain mixture;
Just described mixture and basalt fibre add from different spouts respectively, are melt extruded granulation.
10. the preparation method of thermoplastic polyurethane matrix material as claimed in claim 1, is characterized in that, described to melt extrude be to adopt twin-screw extrusion, and its expressing technique condition is:
One district's temperature is that 170～200 ℃， bis-district's temperature are that 180～210 ℃， tri-district's temperature are that 180～220 ℃， tetra-district's temperature are 180～210 ℃, 180～210 ℃， 5th district, and described compound time of delivery in screw rod is 2～5 minutes, and pressure is 12～20MPa.
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| CN113480841A (en) * | 2020-06-05 | 2021-10-08 | 浙江氢谷新能源汽车有限公司 | High-elasticity corrosion-resistant polyurethane and alloy material compounded with same |
| CN111675895A (en) * | 2020-06-16 | 2020-09-18 | 晋江腾强鞋材有限公司 | TPU material for high-strength wear-resistant shoes, preparation process of TPU material and pulley made of TPU material |
| CN112397849A (en) * | 2020-10-28 | 2021-02-23 | 中国地质大学（北京） | High-temperature-resistant flame-retardant battery diaphragm and preparation method and application thereof |
| CN112457655A (en) * | 2020-11-30 | 2021-03-09 | 宁海宏德新材料科技有限公司 | Vibration-damping wear-resistant material and preparation method and application thereof |
| CN112778750A (en) * | 2021-01-26 | 2021-05-11 | 东莞汉星鞋材有限公司 | Material for flow pattern shoes and preparation method thereof |
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