CN104415529A - Sport skateboard and preparation method thereof - Google Patents
Sport skateboard and preparation method thereof Download PDFInfo
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- CN104415529A CN104415529A CN201310389124.9A CN201310389124A CN104415529A CN 104415529 A CN104415529 A CN 104415529A CN 201310389124 A CN201310389124 A CN 201310389124A CN 104415529 A CN104415529 A CN 104415529A
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Abstract
The invention relates to a sport skateboard and a preparation method thereof. The sport skateboard comprises a support layer formed by overlapping at least one reinforcement layer and at least one toughening layer alternately, wherein at least one in the reinforcement layers and the toughening layers is made of a polymer material. The preparation method of the sport skateboard comprises the step of respectively carrying out extrusion molding on the polymer-based reinforced material composition and polymer-based toughening material composition to form the support layer formed by overlapping the at least one reinforcement layer and the at least one toughening layer alternately, wherein the reinforcement layer is formed by the polymer-based reinforced material composition, and the toughening layer is formed by the polymer-based toughening material composition. The sport skateboard has better rigidity and toughness.
Description
Technical field
The present invention relates to the preparation method of a kind of skateboarding and this skateboarding.
Background technology
Current skateboarding is mainly wooden bonding lamination, easily come off before layer and layer, simultaneously only there is appearance color and not wear-resistant, service life is short, and other are less by the slide plate number of plies that duroplasts is hot-forming, be composited by plastic layer, foaming layer, glue-line, easy pressurized or impact fracture, the mechanical property of material is poor, and can only print surface color.
CN2688339Y discloses a kind of slide plate, comprising: a foaming heartwood, has an end face, a bottom surface and a periphery; One epidermis, is combined with the foam end face hot melt of heartwood of calcium, and at least covers this end face; At least one first pattern, is formed at this epidermis inner, and can sees the first pattern from the outside; And a base plate, be combined with the foam bottom surface hot melt of heartwood of calcium, and at least cover this bottom surface.The material of this slide plate is single, can not take into account rigidity and toughness.
CN2863207Y discloses a kind of skateboarding, comprising: with polymer top; The one polymer foaming core expanded; The one thermoplastic polymer bottom with inner surface and outer surface; The one polymer foaming intermediate layer between described foaming core and described bottom of extruding, this intermediate layer heat rolls on the inner surface of described bottom, wherein, the outer surface of described bottom is straight and be provided with the jog that at least one group of extending longitudinally, parallel, the groove that replace and lug boss form, described jog has a width, and described groove and lug boss are spaced over the entire width.
US20020030338A1 discloses the stratiform slide plate with multilayer, and every layer material is all same, and is wooden.
Summary of the invention
The object of the invention is to overcome existing skateboarding selection single thus the defect of rigidity and toughness can not be taken into account, a kind of new skateboarding and preparation method thereof is provided.
The invention provides a kind of skateboarding, this skateboarding comprises by the mutually alternately stacked supporting layer of at least one enhancement layer and at least one toughening layer, and wherein, at least one layer in described enhancement layer and toughening layer is obtained by polymeric material.
Present invention also offers a kind of method preparing skateboarding, the method comprises: polymer-based reinforcement material composition and Polymers toughening material composition are carried out extrusion molding respectively, mutually stacked supporting layer is replaced by least one enhancement layer and at least one toughening layer to be formed, wherein, described enhancement layer is formed by described polymer-based reinforcement material composition, and described toughening layer is formed by described Polymers toughening material composition.
In described skateboarding provided by the invention, enhancement layer and toughening layer replace stacked to form supporting layer, and wherein, enhancement layer can give described skateboarding rigidity, toughening layer can give described skateboarding toughness, the rigidity that skateboarding of the present invention is had concurrently and toughness.
And skateboarding of the present invention is sandwich construction, by adding the colouring agent of different colours in the different layers, described skateboarding can be made more attractive in appearance.
In addition, describedly prepare in the method for skateboarding provided by the invention, supporting layer directly can be made by extrusion molding and superimposed hot pressing, makes whole preparation process simple, easy to operate.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the plan structure schematic diagram of skateboarding of the present invention;
Fig. 2 is the side-looking structural representation of skateboarding of the present invention;
Fig. 3 is the schematic diagram of the upper epidermis of skateboarding of the present invention;
Fig. 4 is the schematic diagram of the polymer alternating layer of skateboarding of the present invention;
Fig. 5 is the schematic diagram of the lower surface of skateboarding of the present invention;
Fig. 6 is the section schematic perspective view of the skateboarding of the first embodiment of the present invention;
Fig. 7 is the layer structure arrangement schematic diagram of the skateboarding of the first embodiment of the present invention;
Fig. 8 is the section schematic perspective view of the skateboarding of the second embodiment of the present invention;
Fig. 9 is the layer structure arrangement schematic diagram of the skateboarding of the second embodiment of the present invention;
Figure 10 is the section schematic perspective view of the skateboarding of the third embodiment of the present invention;
Figure 11 is the aspect graph of the anti-skid structure on the upper surface of the skateboarding of the third embodiment of the present invention;
Figure 12 is the layer structure arrangement schematic diagram of the skateboarding of the third embodiment of the present invention;
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In this article, term " first " and " second " are only for distinguishing certain material or composition and other materials or composition, but the concrete composition of the concrete kind of this material or this composition should not be limited to the explanation of these terms.
The invention provides a kind of skateboarding, this skateboarding comprises by the mutually alternately stacked supporting layer of at least one enhancement layer and at least one toughening layer, and wherein, at least one layer in described enhancement layer and toughening layer is obtained by polymeric material.
In the preferred case, for making described skateboarding have good rigidity and toughness concurrently, the bending modulus of described enhancement layer is larger than the bending modulus of described toughening layer.More preferably, the bending modulus of described enhancement layer is 1.1-20 times of the bending modulus of described toughening layer, and more preferably 1.5-5 doubly.The bending modulus of described enhancement layer can be 800MPa-12GPa, is preferably 1000-8000MPa.
In the preferred case, for making described skateboarding have good rigidity and toughness concurrently, the impact strength of described toughening layer is larger than the impact strength of described enhancement layer.More preferably, the impact strength of described toughening layer is 1.2-10 times of the impact strength of described enhancement layer, and more preferably 1.5-5 doubly.The impact strength of described toughening layer can be 3-200kJ/m
2, be preferably 4-100kJ/m
2.
In the present invention, bending modulus records according to the assay method of GB/T 9341-2008 plastics bending property, and impact strength records according to the assay method of GB/T 1843-2008 plastics cantilever beam impact strength.
In described skateboarding, in order to make described skateboarding, there is good comprehensive mechanical property, described enhancement layer and described toughening layer are multilayer separately, also namely described supporting layer replaces stacked forming mutually by multiple enhancement layer and multiple toughening layer, such as, described enhancement layer and the described toughening layer number of plies separately can be 2-128, are preferably 4-16.
In described skateboarding, the thickness of described enhancement layer and described toughening layer can be 0.1-5mm separately, is preferably 0.2-3mm.In enhancement layer adjacent one another are and toughening layer, the ratio of the thickness of the two can be 1:10-10:1, is preferably 1:5-5:1.
In described skateboarding, described enhancement layer is preferably made up of polymer-based reinforcement material composition.Described polymer-based reinforcement material composition can contain the first polymeric matrix of 100 weight portions and the reinforcer of 0-50 weight portion.Preferably, described polymer-based reinforcement material composition contains the first polymeric matrix of 100 weight portions and the reinforcer of 0.1-20 weight portion.More preferably, described polymer-based reinforcement material composition contains the first polymeric matrix of 100 weight portions and the reinforcer of 0.5-10 weight portion.
In described skateboarding, described toughening layer is preferably made up of Polymers toughening material composition.Described Polymers toughening material composition can contain the second polymeric matrix of 100 weight portions and the toughening material of 0-40 weight portion.Preferably, described Polymers toughening material composition contains the second polymeric matrix of 100 weight portions and the toughening material of 0.1-20 weight portion.More preferably, described Polymers toughening material composition contains the second polymeric matrix of 100 weight portions and the toughening material of 0.5-10 weight portion.
Described first polymeric matrix and described second polymeric matrix can be identical or different.In a preferred embodiment, described first polymeric matrix is identical with described second polymeric matrix.
Described first polymeric matrix and described second polymeric matrix can be selected from polyethylene, polypropylene, polystyrene, Merlon, nylon, PETG, polyformaldehyde, polyacrylonitrile, acrylonitrile-butadiene-styrene copolymer, polymethyl methacrylate and polyvinyl chloride separately one or more, be preferably in polyethylene, polypropylene and Merlon one or more.
Described reinforcer can be the reinforcer of various routine, such as, can be selected from one or more in talcum powder, silica, calcium carbonate, mica, illite, wollastonite, flyash, barium sulfate, powdered silicate, silica gel, timber powder, cellulose powder, glass fibre, carbon fiber, boron fibre, whisker, cellulose fibre, aramid fiber and poly-benzo-dioxazole fibre dimension.
Described toughening material can be the toughening material of various routine, such as, can be selected from one or more in ethylene-octene copolymer, polyurethane, EP rubbers, ethylene propylene diene rubber, acrylonitrile-butadiene rubber, butyl rubber, polyethylene, crosslinked polyethylene and polyester.
In order to improve the mechanical strength of described skateboarding further, form the filler (described second polymeric matrixs relative to 100 weight portions) of described Polymers toughening material composition preferably also containing 0.1-30 weight portion of described toughening layer.Described filler can be the reinforcer of various routine, such as, can be selected from one or more in talcum powder, silica, calcium carbonate, mica, illite, wollastonite, flyash, barium sulfate, powdered silicate, silica gel, timber powder, cellulose powder, glass fibre, carbon fiber, boron fibre, whisker, cellulose fibre, aramid fiber and poly-benzo-dioxazole fibre dimension.
Described polymer-based reinforcement material composition and/or described Polymers toughening material composition can also contain auxiliary agent.Described auxiliary agent can be selected from extender, blowing agent, coupling agent, tackifier, antioxidant, fire retardant, antiscorching, compatilizer, crosslinking agent and colouring agent one or more.Described extender can be the various extenders that this area routine uses, such as, can be at least one in titanium dioxide, calcium carbonate, chlorinated paraffin wax, talcum powder and wood powder.Described blowing agent can be the various blowing agents that this area routine uses, can be such as Celogen Az, azodiisobutyronitrile, dinitrosopentamethlyene tetramine, 4,4-OBSH and N, N ' one or more in-Dinitroso Pentamethylene Tetramine.Described coupling agent can be the various coupling agents that this area routine uses, such as, can be at least one in silane coupler, titanate coupling agent, Aluminate, zirconium ester coupling agent and boric acid coupling agent.Described antioxidant can be the various antioxidants that this area routine uses, such as, can be at least one in antioxidant 1010, irgasfos 168, antioxidant 1098, antioxidant 264 and bisphenol-A.Described fire retardant can be the various fire retardants that this area routine uses, can be such as deca-BDE, octabromodiphenyl ether, penta-BDE, 2, at least one in two (3, the 5-bis-bromo-4-hydroxyl phenol) propane of 2-, two (pentabromo-phenoxy group) tetrabromo-benzene, magnesium hydroxide, aluminium hydroxide and phosphorus flame retardant.Described compatilizer can be the various compatilizers that this area routine uses, such as, can be at least one in silane coupler, titanate coupling agent, Aluminate, zirconium ester coupling agent and boric acid coupling agent.Described crosslinking agent can be the various crosslinking agents that this area routine uses; can be such as cumyl peroxide, benzoyl peroxide, di-tert-butyl peroxide, di-isopropylbenzene hydroperoxide, TBHP, 2; 5-dimethyl-2; 5-di-t-butyl hexane peroxide, 2; one or more in-3-alkynes, diacyl peroxide, di-t-butyl peroxide, alkyl peroxide, dilauroyl peroxide, methyl ethyl ketone peroxide and cyclohexanone peroxide of 5-dimethyl-2,5-di-tert-butyl peroxide.Described colouring agent can be the various colouring agents that this area routine uses, such as, can be at least one in carbon black, AZOpigments, phthalocyanine, which ketone, isoindolone, anthraquinone, thioindigo, titanium dioxide, zinc oxide and lithopone of quinoline.
In one embodiment, described polymer-based reinforcement material composition and/or described Polymers toughening material composition are also containing colouring agent.And relative to the corresponding polymeric matrix of 100 weight portions, the content of described colouring agent is preferably 0.1-3 weight portion.
In another embodiment, described polymer-based reinforcement material composition and/or described Polymers toughening material composition are also containing compatilizer.And relative to the corresponding polymeric matrix of 100 weight portions, the content of described compatilizer is preferably 0.5-3 weight portion.
In the present invention, described skateboarding preferably also comprises upper epidermis and/or layer, and described layer is positioned at the side relative with described upper epidermis on described supporting layer.Further preferably, in order to increase the skin-friction force of skateboarding, being convenient to player and controlling slide plate, described upper epidermis and/or described layer are provided with anti-skid structure.Described anti-skid structure can be arranged according to the version of this area routine, and such as described anti-skid structure can be jog.Further preferably, described anti-skid structure is that transverse and longitudinal intersects and evenly distributed concaveconvex structure mutually.In described concaveconvex structure, there is no particular limitation for the shape of lug boss, such as, can be cubic shaped, also can be hemispherical.
In described skateboarding, when trampling on skateboarding to make player, there is good comfort, and increase the skin-friction force of skateboarding further, upper epidermis and/or the described layer of described skateboarding are preferably made up of polymer-based elastomer material compositions, described polymer-based elastomer material compositions contains and is selected from ethylene-octene copolymer, polyurethane, EP rubbers, ethylene propylene diene rubber, polystyrene block copolymer, acrylonitrile-butadiene rubber, butadiene-styrene rubber, neoprene, isoprene rubber, butadiene rubber, at least one polymer elastomer in silicon rubber and fluorubber.In described polymer-based elastomer material compositions, the content of described polymer elastomer can be more than 90 % by weight, is preferably more than 95 % by weight.In the present invention, can be identical or different for the formation of the polymer-based elastomer material compositions of described upper epidermis and the polymer-based elastomer material compositions for the formation of described layer.
Described skateboarding provided by the invention as shown in figs. 1-12.
Fig. 1 shows the plan structure schematic diagram of skateboarding 1 of the present invention.Fig. 2 shows the side-looking structural representation of skateboarding 1 of the present invention.Fig. 3 shows the upper epidermis 3 of skateboarding 1 of the present invention.Fig. 4 shows the polymer alternating layer of skateboarding 1 of the present invention, and described polymer alternating layer has enhancement layer 4 and toughening layer 5.Fig. 5 shows the layer 6 of skateboarding 1 of the present invention.
Fig. 6 and Fig. 7 shows the structural representation of the skateboarding 1 according to one embodiment of the present invention, wherein, the supporting layer that described skateboarding 1 comprises upper epidermis 3 and is made up of several polymer alternating layers 7, each polymer alternating layer has enhancement layer 4 and toughening layer 5.
Fig. 8 and Fig. 9 shows the structural representation of the skateboarding 1 of a preferred embodiment of the invention, wherein, described skateboarding 1 comprises upper epidermis 3, the supporting layer be made up of several polymer alternating layers 7 and layer 6, and each polymer alternating layer has enhancement layer 4 and toughening layer 5.
Figure 10 to Figure 12 shows the structural representation of the skateboarding 1 according to another kind of preferred embodiment of the present invention, wherein, the supporting layer that described skateboarding 1 comprises upper epidermis 3 and is made up of several polymer alternating layers 7, each polymer alternating layer has enhancement layer 4 and toughening layer 5, described upper epidermis 3 is provided with anti-skid structure 8, and described anti-skid structure 8 is that transverse and longitudinal intersects and evenly distributed cube concave convex texture mutually.
Present invention also offers a kind of method preparing skateboarding, the method mainly comprises: polymer-based reinforcement material composition and Polymers toughening material composition are carried out extrusion molding respectively, mutually stacked supporting layer is replaced by least one enhancement layer and at least one toughening layer to be formed, wherein, described enhancement layer is formed by described polymer-based reinforcement material composition, and described toughening layer is formed by described Polymers toughening material composition.
Under preferable case, the described method preparing skateboarding also comprises carries out extrusion molding to form upper epidermis and/or layer by polymer-based elastomer material compositions, then obtained upper epidermis and/or layer are attached on described supporting layer, then carry out adding hot pressing and sizing, wherein, described layer is formed in the side relative with described upper epidermis be positioned on described supporting layer.
In one embodiment, the described method preparing skateboarding comprises the following steps:
(1) polymer-based reinforcement material composition and Polymers toughening material composition are carried out extrusion molding respectively, mutually replace stacked supporting layer to be formed by least one enhancement layer and at least one toughening layer,
(2) polymer-based elastomer material compositions is carried out extrusion molding, to form upper epidermis;
(3) upper epidermis prepared by step (2) is attached on supporting layer prepared by step (1), then carries out adding hot pressing and sizing.
In the above-described embodiment, step (1) and step (2) do not have strict priority operating sequence, and the two can carry out simultaneously, can carry out with arbitrary sequencing yet.
In the above-described embodiment, stacked supporting layer is replaced by multiple enhancement layer and toughening layer in order to be formed, can realize in the following manner: polymer-based reinforcement material composition and Polymers toughening material composition are dropped in extruder respectively, after fusion plastification, make two strands of melts superimposed in distributor, then through multiple multiplier cutting and superimposed, flow out from outlet mold, then through compacting with draw.
In one more preferably embodiment, the preparation method of described skateboarding also comprises: on described upper epidermis, form anti-skid structure.Described anti-skid structure can be arranged according to the version of this area routine, and such as described anti-skid structure can be jog.Further preferably, described anti-skid structure is that transverse and longitudinal intersects and evenly distributed concaveconvex structure mutually.In described concaveconvex structure, there is no particular limitation for the shape of lug boss, such as, can be cubic shaped, also can be hemispherical.Described anti-skid structure (as concaveconvex structure) can be formed by conventional method, such as, can be formed by the mode of mould heat pressure.
In another kind more preferably embodiment, the preparation method of described skateboarding also comprises and polymer-based elastomer material compositions is carried out extrusion molding, to form layer; And step (3) add hot pressing before, described layer is attached to the side relative with described upper epidermis on described supporting layer, also namely the side of supporting layer attach upper epidermis, opposite side attach layer.
In described method provided by the invention, described polymer-based reinforcement material composition, described Polymers toughening material composition and described polymer-based elastomer material compositions all with describe above identical.
In a kind of detailed description of the invention, the preparation method of described skateboarding comprises the following steps:
(1) described polymer-based reinforcement material composition and described Polymers toughening material composition are dropped in extruder respectively, after fusion plastification, make two strands of melts superimposed in distributor, through n multiplier cutting and superimposed after, flow out from outlet mold, again through the compacting of tri-roll press machine and the traction of hauling machine, obtain by 2
(n+1)the supporting layer that individual polymeric layer is formed, wherein, n is 0-9, is preferably 1-7, is more preferably 1-5;
(2) described polymer-based elastomer material compositions is dropped in extruder, prepare single sheet as upper epidermis;
(3) upper epidermis prepared by step (2) is attached on supporting layer prepared by step (1), in the mould of 140-260 DEG C, adds hot pressing 10-30 minute;
(4) sheet material obtained after adding hot pressing in step (3) is put into plastic uptake slide plate mould at the mould of 140-260 DEG C, plastics suction mould is vacuumized and carries out vacuum suction moulding, take out the skateboarding being sizing after cooling; Or the sheet material obtained after adding hot pressing in step (3) is put into molding die, by pressure forming machine, pressurized, heated is carried out to mould, take out the skateboarding being sizing after cooling.
In another kind of detailed description of the invention, the preparation method of described skateboarding is substantially identical with the first embodiment above-mentioned, and difference is, in step (2), forms concaveconvex structure by by mould heat pressure on the upper epidermis of preparation.
In another kind of detailed description of the invention, the preparation method of described skateboarding comprises the following steps:
(1) described polymer-based reinforcement material composition and described Polymers toughening material composition are dropped in extruder respectively, after fusion plastification, make two strands of melts superimposed in distributor, through n multiplier cutting and superimposed after, flow out from outlet mold, again through the compacting of tri-roll press machine and the traction of hauling machine, obtain by 2
(n+1)the supporting layer that individual polymeric layer is formed, wherein, n is 0-9, is preferably 1-7, is more preferably 1-5;
(2) described polymer-based elastomer material compositions is dropped in extruder, prepare single sheet respectively as upper epidermis and layer;
(3) upper epidermis step (2) prepared and layer are attached to the both sides of supporting layer prepared by step (1) respectively, add hot pressing 10-30 minute in the mould of 140-260 DEG C;
(4) sheet material obtained after adding hot pressing in step (3) is put into plastic uptake slide plate mould at the mould of 140-260 DEG C, plastics suction mould is vacuumized and carries out vacuum suction moulding, take out the skateboarding being sizing after cooling; Or the sheet material obtained after adding hot pressing in step (3) is put into molding die, by pressure forming machine, pressurized, heated is carried out to mould, take out the skateboarding being sizing after cooling.
In another kind of detailed description of the invention, the preparation method of described skateboarding is substantially identical with the third embodiment above-mentioned, and difference is, in step (2), is forming concaveconvex structure by mould heat pressure as on the single sheet of upper epidermis.
The invention will be further described by the following examples.
In the following Examples and Comparative Examples, bending modulus measures according to the assay method of GB/T 9341-2008 plastics bending property; Impact strength measures according to the assay method of GB/T 1843-2008 plastics cantilever beam impact strength; Melt index records according to the method for GB-3682-2000.
Embodiment 1
The present embodiment is for illustration of described skateboarding of the present invention and preparation method thereof.
The present embodiment is for the preparation of skateboarding as shown in Figures 6 and 7.
Prepare material:
Material A 1 is that the polypropylene of 85 weight portions is (purchased from Dushanzi petro-chemical corporation, the trade mark is EPS30R, melt index is 1.5g/10min, weight average average molecular weight is 847776g/mol), the ethylene-octene copolymer (POE of 15 weight portions, purchased from Dow Chemical, the trade mark is Engage8150, and melt index is 0.5g/10min, weight average molecular weight is 213035g/mol, and the content of octene construction unit is 25 weight portions) and the red Masterbatch (purchased from Tianjin Xiang Zhili Trade Co., Ltd.) of 1 weight portion;
Material B1 is the yellow Masterbatch (purchased from Tianjin company of Xiang Zhili Trade Co., Ltd.) of 100 weight portion fiber glass reinforced polypropylenes (purchased from SABIC company, wherein glass fiber content is 30 weight portions) and 1 weight portion;
Material C1 is the ethylene-octene copolymer (POE, purchased from Dow Chemical, the trade mark is Engage8150, and melt index is 0.5g/10min, and weight average molecular weight is 213035g/mol, and the content of octene construction unit is 25 weight portions) of 100 weight portions.
Material A 1 and material B1 are placed in respectively baking oven at 80 DEG C dry 2 hours.Then the pellet of the pellet of material A 1 and material B1 is dropped in the two extruders of multi-layer co-extruded device respectively, the rotating ratio of two extruders is 1:1, superimposed in distributor (temperature is 200 DEG C) after extruding, and flow out from outlet mold (temperature is 195 DEG C), then the polymer alternating layer that obtained A1 and B1 Thickness ratio is the two-layer width of 3:2 under the compacting of calender and the traction of hauling machine is 650mm, thickness is 2mm, is cut into length, width and height and is respectively 900 × 200 × 2mm
3sheet material S1.
Material C1 is added in single screw extrusion machine, the four section temperature of single screw extrusion machine from charging aperture to discharging opening are followed successively by 160 DEG C, 175 DEG C, 180 DEG C and 175 DEG C, prepare the POE film that individual layer width is 65mm, thickness is 0.5mm, be cut into length, width and height and be respectively 900 × 200 × 0.5mm
3sheet material S2.
The sheet material SA1 that thickness is 2mm is made in material A 1 extrusion molding, the sheet material SB1 that thickness is 2mm is made in material B1 extrusion molding.Learn by detecting, the bending modulus of sheet material SA1 is 987MPa, impact strength 46kJ/m
2; The bending modulus of sheet material SB1 is 3332MPa, and impact strength is 6.1kJ/m
2.That is, the bending modulus of sheet material SB1 is 3.4 times of the bending modulus of sheet material SA1, and the impact strength of sheet material SA1 is 7.7 times of the impact strength of sheet material SB1.
Choose 5 sheet material S1 to be superimposed together, and above 1 sheet material S2 is overlayed, then, after carrying out hot-forming 30 minutes in a mold at 160 DEG C, taking-up is after cooling put into plastics suction mould and carry out vacuum suction moulding at 160 DEG C, is cut into 790 × 180 × 10mm after cooling
3skateboarding P1, its impact strength is 29kJ/m
2, bending modulus is 2700MPa.
Embodiment 2
The present embodiment is for illustration of described skateboarding of the present invention and preparation method thereof.
The present embodiment is for the preparation of skateboarding as shown in FIG. 8 and 9.
Prepare material:
A2 is that the polypropylene of 85 weight portions is (purchased from Dushanzi petro-chemical corporation, the trade mark is EPS30R, melt index is 1.5g/10min, weight average average molecular weight is 847776g/mol), the ethylene-octene copolymer (POE of 15 weight portions, purchased from Dow Chemical, the trade mark is Engage8150, and melt index is 0.5g/10min, weight average molecular weight is 213035g/mol, and the content of octene construction unit is 25 weight portions) and the red Masterbatch (purchased from Tianjin Xiang Zhili Trade Co., Ltd.) of 0.8 weight portion;
Material B2 is the green Masterbatch (purchased from Tianjin Xiang Zhili Trade Co., Ltd.) of 100 parts by weight of polypropylene (purchased from Dushanzi petro-chemical corporation, the trade mark is EPS30R, and melt index is 1.5g/10min, and weight average average molecular weight is 847776g/mol) and 1 weight portion;
Material C2 is 100 weight portion ethylene propylene diene rubbers (EPDM, purchased from Dow Chemical, the trade mark is NORDELIP4570, and the content of ethylene unit unit is 50 weight portions) and 0.5 weight portion purple color masterbatch (purchased from Tianjin Xiang Zhili Trade Co., Ltd.).
Material D2 is 100 parts by weight of ethylene-octene copolymer (POE, purchased from Dow Chemical, the trade mark is Engage8150, melt index is 0.5g/10min, weight average molecular weight is 213035g/mol, and the content of octene construction unit is 25 weight portions) and the yellow color masterbatch (purchased from Tianjin Xiang Zhili Trade Co., Ltd.) of 0.5 weight portion.
Add in double screw extruder by material A 2, the four section temperature of double screw extruder from charging aperture to discharging opening are followed successively by 190 DEG C, 195 DEG C, 200 DEG C and 195 DEG C, extruding pelletization, are then placed in baking oven at 80 DEG C dry 2 hours.The pellet of the material A 2 be baked and the pellet of material B2 are dropped in the two extruders of multi-layer co-extruded device respectively, the rotating ratio of two extruders is 1:1, superimposed in distributor (temperature is 200 DEG C) after extruding, and flow out from outlet mold (temperature is 195 DEG C), then the polymer alternating layer that obtained thickness is the two-layer width of 1:1 under the compacting of calender and the traction of hauling machine is 650mm, thickness is 2mm, is cut into length, width and height and is respectively 900 × 200 × 2mm
3sheet material S3.
Material C2 is added in double screw extruder, the four section temperature of double screw extruder from charging aperture to discharging opening are followed successively by 170 DEG C, 185 DEG C, 190 DEG C and 185 DEG C, prepare the EPDM film that individual layer width is 650mm, thickness is 0.5mm, be cut into length, width and height and be respectively 900 × 200 × 0.5mm
3sheet material S4.
Material D2 is added in double screw extruder, the four section temperature of double screw extruder from charging aperture to discharging opening are followed successively by 160 DEG C, 175 DEG C, 180 DEG C and 175 DEG C, prepare the POE film that individual layer width is 650mm, thickness is 0.5mm, be cut into length, width and height and be respectively 900 × 200 × 0.5mm
3sheet material S5.
The sheet material SA2 that thickness is 2mm is made in material A 2 extrusion molding, the sheet material SB2 that thickness is 2mm is made in material B2 extrusion molding.Learn by detecting, the bending modulus of sheet material SA2 is 987MPa, and impact strength is 46kJ/m
2; The bending modulus of sheet material SB2 is 1432MPa, and impact strength is 15.3kJ/m
2.That is, the bending modulus of sheet material SB2 is 1.45 times of the bending modulus of sheet material SA2, and the impact strength of sheet material SA2 is 3 times of the impact strength of sheet material SB2.
Choose 5 sheet material S3 to be superimposed together, and above 1 sheet material S4 is overlayed, below 1 sheet material S5 is overlayed, then after carrying out hot-forming 30 minutes in a mold at 165 DEG C, taking-up is after cooling put into plastics suction mould and carry out vacuum suction moulding at 160 DEG C, is cut into 790 × 180 × 10mm after cooling
3skateboarding P2, its impact strength is 40.7kJ/m
2, bending modulus is 1280MPa.
Embodiment 3
The present embodiment is for illustration of described skateboarding of the present invention and preparation method thereof.
The present embodiment is for the preparation of skateboarding as illustrated in figs. 10 and 12.
Prepare material:
Material A 3 is the polyformaldehyde (POM of 75 weight portions, purchased from Ning Mei Co., Ltd of Shenhua, the trade mark is MC90G, weight average molecular weight is 65000g/mol), the thermoplastic polyurethane (TPU of 25 weight portions, purchased from BASF AG, the trade mark is 85A) and the blue Masterbatch (purchased from Tianjin Xiang Zhili Trade Co., Ltd.) of 0.5 weight portion;
Material B3 is 100 weight portion fiberglass reinforced polyformaldehyde (POM+GF, purchased from MIT, the trade mark is, wherein glass fiber content is 25 weight portions);
Material C3 is the blue color masterbatch (purchased from Tianjin Xiang Zhili Trade Co., Ltd.) of 100 weight portion ethylene propylene diene rubbers (EPDM, purchased from Dow Chemical, the trade mark is NORDELIP4570, and the content of ethylene unit unit is 50 weight portions) and 0.5 weight portion.
Material A 3 and material B3 are placed in baking oven at 80 DEG C dry 2 hours.Be that 1:1 drops in the two extruders of multi-layer co-extruded device respectively by the pellet of the pellet of material A 3 and material B3 with volume ratio, the rotating ratio of two extruders is 1:1, superimposed in distributor (temperature is 195 DEG C) after extruding, again through the cutting of 4 multipliers and superimposed, then flow out from outlet mold (temperature is 190 DEG C), then the polymer alternating layer that obtained thickness is the two-layer width of 1:1 under the compacting of calender and the traction of hauling machine is 650mm, thickness is 2mm, is cut into length, width and height and is respectively 900 × 200 × 2mm
3sheet material S6.
Add in double screw extruder by material C3, the four section temperature of double screw extruder from charging aperture to discharging opening are followed successively by 175 DEG C, 180 DEG C, 185 DEG C and 185 DEG C, prepare the EPDM film S7 that individual layer width is 650mm, thickness is 0.5mm.
The sheet material SA3 that thickness is 1mm is made in material A 3 extrusion molding, the sheet material SB3 that thickness is 1mm is made in material B3 extrusion molding.Learn by detecting, the bending modulus of sheet material SA3 is 1341MPa, and impact strength is 8.5kJ/m
2; The bending modulus of sheet material SB3 is 3672MPa, and impact strength is 4.5kJ/m
2.That is, the bending modulus of sheet material SB3 is 2.7 times of the bending modulus of sheet material SA3, and the impact strength of sheet material SA3 is 1.9 times of the impact strength of sheet material SB3.
1 EPDM film S7 is overlayed above 5 sheet material S6, then at 165 DEG C, hot-forming 30 minutes are carried out, by there is the mould heat pressure of concavo-convex cube lines on S7, each projection is of a size of 10mm × 10mm, the degree of depth of recess is 0.25mm, the total length of whole projection and overall width respectively account for 50% of whole concavo-convex length and width, and taking-up is after cooling put into plastics suction mould and carry out vacuum suction moulding at 165 DEG C, is cut into 790 × 180 × 10mm after cooling
3skateboarding P3, its impact strength is 7.3kJ/m
2, bending modulus is 2500MPa.
As can be seen from the above-described embodiment, skateboarding according to the present invention can take into account good rigidity and toughness.
Claims (19)
1. a skateboarding, is characterized in that, this skateboarding comprises by the mutually alternately stacked supporting layer of at least one enhancement layer and at least one toughening layer, and wherein, at least one layer in described enhancement layer and toughening layer is obtained by polymeric material.
2. skateboarding according to claim 1, wherein, the bending modulus of described enhancement layer is larger than the bending modulus of described toughening layer, and the impact strength of described toughening layer is larger than the impact strength of described enhancement layer.
3. skateboarding according to claim 2, wherein, the bending modulus of described enhancement layer is 1.1-20 times of described toughening layer bending modulus, is preferably 1.5-5 doubly; The impact strength of described toughening layer is 1.2-10 times of the impact strength of described enhancement layer, is preferably 1.5-5 doubly.
4. skateboarding according to claim 3, wherein, the bending modulus of described enhancement layer is 800MPa-12GPa, is preferably 1000-8000MPa; The impact strength of described toughening layer is 3-200kJ/m
2, be preferably 4-100kJ/m
2.
5. skateboarding according to claim 1, wherein, described enhancement layer and the described toughening layer number of plies are separately 2-128, are preferably 4-16.
6. skateboarding according to claim 1, wherein, the thickness of described enhancement layer and described toughening layer is 0.1-5mm separately, is preferably 0.2-3mm.
7. according to the skateboarding in claim 1-6 described in any one, wherein, described enhancement layer is made up of polymer-based reinforcement material composition, and described polymer-based reinforcement material composition contains the first polymeric matrix of 100 weight portions and the reinforcer of 0-50 weight portion;
Described toughening layer is made up of Polymers toughening material composition, and described Polymers toughening material composition contains the second polymeric matrix of 100 weight portions and the toughening material of 0-40 weight portion.
8. skateboarding according to claim 7, wherein, described first polymeric matrix and described second polymeric matrix identical or different, and one or more being selected from polyethylene, polypropylene, polystyrene, Merlon, nylon, PETG, polyformaldehyde, polyacrylonitrile, acrylonitrile-butadiene-styrene copolymer, polymethyl methacrylate and polyvinyl chloride separately.
9. the skateboarding according to claim 7 or 8, wherein, described reinforcer is one or more in talcum powder, silica, calcium carbonate, mica, illite, wollastonite, flyash, barium sulfate, powdered silicate, silica gel, timber powder, cellulose powder, glass fibre, carbon fiber, boron fibre, whisker, cellulose fibre, aramid fiber and poly-benzo-dioxazole fibre dimension.
10. the skateboarding according to claim 7 or 8, wherein, described toughening material is one or more in ethylene-octene copolymer, polyurethane, EP rubbers, ethylene propylene diene rubber, acrylonitrile-butadiene rubber, butyl rubber, polyethylene, crosslinked polyethylene and polyester.
11. skateboardings according to any one of claims of claim 7-10, wherein, described Polymers toughening material composition is also containing the filler of 0.1-30 weight portion, and described filler is one or more in talcum powder, silica, calcium carbonate, mica, illite, wollastonite, flyash, barium sulfate, powdered silicate, silica gel, timber powder, cellulose powder, glass fibre, carbon fiber, boron fibre, whisker, cellulose fibre, aramid fiber and poly-benzo-dioxazole fibre dimension.
12. according to the skateboarding in claim 7-11 described in any one, wherein, described polymer-based reinforcement material composition and/or described Polymers toughening material composition also containing auxiliary agent, described auxiliary agent be selected from extender, blowing agent, coupling agent, tackifier, antioxidant, fire retardant, antiscorching, compatilizer, crosslinking agent and colouring agent one or more.
13. skateboardings according to claim 12, wherein, described polymer-based reinforcement material composition and/or described Polymers toughening material composition contain the colouring agent of 0.1-3 weight portion.
14. skateboardings according to claim 12 or 13, wherein, described polymer-based reinforcement material composition and/or described Polymers toughening material composition contain the compatilizer of 0.5-3 weight portion, described compatilizer be selected from silane coupler, titanate coupling agent, Aluminate, zirconium ester coupling agent and boric acid coupling agent one or more.
15. according to the skateboarding in claim 1-14 described in any one, and wherein, described skateboarding also comprises upper epidermis and/or layer, and described layer is positioned at the side relative with described upper epidermis on described supporting layer.
16. skateboardings according to claim 15, wherein, described upper epidermis and/or described layer are provided with anti-skid structure, and described anti-skid structure is preferably jog.
17. skateboardings according to claim 15 or 16, wherein, described upper epidermis and/or described layer are made up of polymer-based elastomer material compositions, and described polymer-based elastomer material compositions contains at least one polymer elastomer be selected from ethylene-octene copolymer, polyurethane, EP rubbers, ethylene propylene diene rubber, polystyrene block copolymer, acrylonitrile-butadiene rubber, butadiene-styrene rubber, neoprene, isoprene rubber, butadiene rubber, silicon rubber and fluorubber.
18. 1 kinds of methods preparing the skateboarding in claim 7-17 described in any one, the method mainly comprises: polymer-based reinforcement material composition and Polymers toughening material composition are carried out extrusion molding respectively, mutually stacked supporting layer is replaced by least one enhancement layer and at least one toughening layer to be formed, wherein, described enhancement layer is formed by described polymer-based reinforcement material composition, and described toughening layer is formed by described Polymers toughening material composition.
19. methods according to claim 18, wherein, described method also comprises carries out extrusion molding to form upper epidermis and/or layer by polymer-based elastomer material compositions, then obtained upper epidermis and/or layer are attached on described supporting layer, then carry out adding hot pressing and sizing, wherein, described layer is formed in the side relative with described upper epidermis be positioned on described supporting layer.
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| CN111688148A (en) * | 2020-06-28 | 2020-09-22 | 四川大学 | High-strength high-toughness flame-retardant regenerated plastic and preparation method thereof |
| CN115245919A (en) * | 2022-08-16 | 2022-10-28 | 杭州埃欧珞机器人科技有限公司 | Solar panel cleaning equipment and cleaning method thereof |
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