CN212555296U - Composite board for case shell - Google Patents
Composite board for case shell Download PDFInfo
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- CN212555296U CN212555296U CN202020657905.7U CN202020657905U CN212555296U CN 212555296 U CN212555296 U CN 212555296U CN 202020657905 U CN202020657905 U CN 202020657905U CN 212555296 U CN212555296 U CN 212555296U
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Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The utility model discloses a composite board for a case shell, which is formed by randomly combining and superposing three layered materials including a biodegradable plastic layer, a plant fiber woven layer and an inorganic fiber reinforced layer, wherein the layers are connected by adopting a layer-by-layer composite mode; the biodegradable plastic layer is partially impregnated into the plant fiber woven layer and/or the inorganic fiber reinforced layer which are in contact with the biodegradable plastic layer. The utility model discloses a case and bag is composite sheet material for casing simple structure, convenient to use adopts and forms including three kinds of laminar materials of biodegradable plastic layer, plant fiber weaving layer and inorganic fiber enhancement layer random combination coincide, and it is lighter to have a quality, and compressive capacity is strong, and toughness is good, and shock resistance is strong, and biodegradable characteristic has wide market perspective.
Description
Technical Field
The utility model relates to a case and bag casing material technical field, concretely relates to case and bag casing composite board for shell.
Background
Common plastic hard-shell bags in the current market are mostly made of the following materials:
1) polycarbonate (Polycarbonate), the material is colorless and transparent, heat-resistant, impact-resistant, excellent in processing performance and good in flame retardance, and has good mechanical properties at ordinary use temperatures.
2) Acrylonitrile-Butadiene-Styrene Copolymers (Acrylonitrile Butadiene Styrene Copolymers) are abbreviated as ABS. ABS is a thermoplastic high polymer material structure with high strength, good toughness and easy processing and molding. Better comprehensive performance, higher impact strength, chemical stability and good electrical property.
3) Polypropylene (Polypropylene) is a non-toxic, odorless, tasteless, milky-white, highly crystalline polymer with a density of only 0.90-0.91g/cm3, which is one of the lightest varieties of all plastics at present.
However, most of the materials are derived from petroleum and natural gas and have no biodegradability. After the case is damaged or the service life of the case is over, the case can only be treated as non-degradable plastic garbage. In the production of the luggage, the luggage is often combined with other plastic materials to cause difficulty in recycling and classifying the materials, so that the luggage can be only burned or buried as solid waste in most cases. The degradation period of these plastics in soil is many hundreds of years, which undoubtedly causes and aggravates environmental pollution. The production and possession of bags worldwide currently take hundreds of millions, and a large number of bags are produced and eliminated every year, so that research and development of novel biodegradable plastic hard-shell bags are imminent.
Biodegradable plastics are increasingly paid attention and researched due to good degradability. Sorted from raw materials, biodegradable plastics currently available for large-scale commercial production comprise:
1) polycaprolactone (PCL), 2) polybutylene succinate (PBS), 3) polylactic acid (PLA), 4) Polyhydroxyalkanoate (PHA), 5) aliphatic aromatic copolyester (PLA + PBTA) such as aliphatic aromatic random copolyester (Ecoflex) manufactured by BASF of germany, 6) polyvinyl alcohol (PVA), 7) poly-beta-hydroxybutyrate (PHB) and copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate (PHBV), etc. These plastics have good biodegradability, and the microorganisms that break them down are widely distributed under aerobic or anaerobic conditions.
However, the properties of biodegradable plastic products have not been able to fully satisfy numerous consumer needs. Although there are many varieties on the market, each of the above materials has outstanding mechanical and processing properties, and the combination of these properties has one or more disadvantages, and the main market is plastic packaging film, agricultural film, disposable plastic bag, disposable plastic tableware, etc. The packaging products made of the biodegradable plastics have a great difference from the traditional plastic products in the aspects of heat resistance, water resistance and mechanical strength, and the application of the biodegradable plastics in occasions such as bags and the like is just hindered.
In actual hard-shell luggage design and testing, the specifications required by designers are multifaceted, and thus the requirements for the material used for the luggage shell are also comprehensive, such as: 1) low density (to achieve light weight of the box), 2) impact resistance (to prevent the box from falling and damaging), 3) high rigidity (to resist compression and deformation), 4) low-temperature toughness (to resist low-temperature falling), 5) surface decoration (color or pattern diversity), 6) aging resistance (to be long-acting and durable), and the like. However, any existing biodegradable material cannot take all the design criteria into consideration.
Based on the circumstances, the utility model provides a box cladding composite board for body can effectively solve above problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a box enclosure shells uses composite board. The utility model discloses a case and bag is composite sheet material for casing simple structure, convenient to use adopts and forms including biodegradable plastic layer (1), plant fiber weaving layer (2) and three kinds of laminar materials random combination coincide of inorganic fiber enhancement layer (3), and it is lighter to have a quality, and compressive capacity is strong, and toughness is good, and shock resistance is strong, and biodegradable characteristic has wide market perspective.
The utility model discloses a following technical scheme realizes:
a composite board for a box casing shell is formed by randomly combining and superposing three layered materials including a biodegradable plastic layer (1), a plant fiber woven layer (2) and an inorganic fiber reinforced layer (3), and all the layers are connected in a layer-by-layer compounding manner;
the biodegradable plastic layer (1) is partially immersed into the plant fiber braided layer (2) and/or the inorganic fiber reinforced layer (3) which are in contact with the biodegradable plastic layer;
the biodegradable plastic layer (1) is made of any one or more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly-beta-hydroxybutyrate and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate;
the vegetable fiber weaving layer (2) is 100% of vegetable fiber felt or woven cloth formed by spinning and weaving 100% of vegetable fibers; or a woven cloth formed by blending biodegradable plastic fibers and plant fibers; or the weaving cloth is formed by wrapping plant fibers with biodegradable plastic fibers to form wrapping yarns and then weaving;
the inorganic fiber reinforced layer (3) is a non-woven fabric or a woven fabric made of any one of glass fiber, carbon fiber, basalt fiber and aramid fiber; or the woven cloth is formed by mixing and weaving a plurality of glass fibers, carbon fibers, basalt fibers and aramid fibers.
The utility model discloses a case and bag is composite sheet material for casing simple structure, convenient to use adopts and forms including biodegradable plastic layer (1), plant fiber weaving layer (2) and three kinds of laminar materials random combination coincide of inorganic fiber enhancement layer (3), and it is lighter to have a quality, and compressive capacity is strong, and toughness is good, and shock resistance is strong, and biodegradable characteristic has wide market perspective.
Preferably, the three layered materials of the biodegradable plastic layer (1), the vegetable fiber braided layer (2) and the inorganic fiber reinforced layer (3) are respectively marked as A, B and C, and the three layered materials are combined and overlapped in an ABACA, ABACBA or ABACA mode.
Preferably, the plant fiber is any one or more of cotton fiber, hemp fiber, bamboo fiber and plant processing fiber; the biodegradable plastic is any one or more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly-beta-hydroxybutyrate and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate.
Preferably, the plant processed fiber is a fiber prepared from any one or more of straw, sugar cane, coconut and palm.
Preferably, the composite board for the luggage shell is formed by overlapping a biodegradable plastic layer (1), a plant fiber woven layer (2), a biodegradable plastic layer (1), an inorganic fiber reinforced layer (3) and a biodegradable plastic layer (1) which are sequentially paved in layers, and the layers are connected in a layer-paving composite mode.
Preferably, the biodegradable plastic layer (1) is made of polylactic acid.
Preferably, the plant fiber woven layer (2) is a flax fiber felt or a bamboo fiber felt.
Preferably, the inorganic fiber reinforced layer (3) is a glass fiber felt or a carbon fiber felt.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses a case and bag is composite sheet material for casing simple structure, convenient to use adopts and forms including biodegradable plastic layer (1), plant fiber weaving layer (2) and three kinds of laminar materials random combination coincide of inorganic fiber enhancement layer (3), and it is lighter to have a quality, and compressive capacity is strong, and toughness is good, and shock resistance is strong, and biodegradable characteristic has wide market perspective.
The utility model discloses a biodegradable plastic layer (1) biological (can) degradable plastics reach the degradable requirement as the substrate, adopt plant fiber to weave layer (2), especially flax fiber and bamboo fibre etc. have improved toughness and shock resistance when reducing the weight of case and bag, and adopt inorganic fiber enhancement layer (3), especially inorganic glass fiber (thin) felt or carbon fiber (thin) felt material as inorganic fiber enhancement layer (3), have improved the rigidity, wearability and the crushing resistance of case and bag casing.
The utility model discloses a vegetable fibre and biodegradable plastics system have realized the biodegradability of case and bag, and inorganic reinforcing fiber's alternative use has strengthened biodegradable thermoplastic material's mechanical properties simultaneously, has especially improved toughness and shock resistance when improving the casing rigidity. The surface of the case body is enhanced by the glass fiber or carbon fiber reinforced material layer, so that the rigidity and the surface wear resistance of the case shell are improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Example 1:
referring to fig. 1, a composite board for a luggage shell is formed by randomly combining and laminating three layered materials including a biodegradable plastic layer (1), a vegetable fiber woven layer (2) and an inorganic fiber reinforced layer (3), and all the layers are connected in a layered-paving composite manner; the biodegradable plastic layer (1) is partially immersed into the plant fiber braided layer (2) and/or the inorganic fiber reinforced layer (3) which are in contact with the biodegradable plastic layer; the biodegradable plastic layer (1) is made of any one or more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly-beta-hydroxybutyrate and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate; the vegetable fiber weaving layer (2) is 100% of vegetable fiber felt or woven cloth formed by spinning and weaving 100% of vegetable fibers; or a woven cloth formed by blending biodegradable plastic fibers and plant fibers; or the weaving cloth is formed by wrapping plant fibers with biodegradable plastic fibers to form wrapping yarns and then weaving; the inorganic fiber reinforced layer (3) is a non-woven fabric or a woven fabric made of any one of glass fiber, carbon fiber, basalt fiber and aramid fiber; or the woven cloth is formed by mixing and weaving a plurality of glass fibers, carbon fibers, basalt fibers and aramid fibers.
Specifically, the utility model discloses a plant fiber layer that the layer was laid among the technical scheme is for by in the plant such as cotton, hemp, bamboo fiber or straw, sugarcane, coconut, palm one or more of the fibre of preparing thoughtlessly compile, biodegradable plastic layer is one or more of Polycaprolactone (PCL), Poly Butylene Succinate (PBS), polylactic acid (PLA), Polyhydroxyalkanoate (PHA), aliphatic aromatic copolyester (PLA + PBTA), polyvinyl alcohol (PVA), poly-beta-hydroxybutyrate (PHB) and 3-hydroxybutyrate and 3-hydroxyvalerate's copolymer (PHBV) etc. one or more material blend. The special reinforced layer (the inorganic fiber reinforced layer (3)) is formed by mixing and weaving one or more materials of glass fiber, carbon fiber, basalt fiber, aramid fiber and the like. The plant fiber layer, the biodegradable plastic layer and the special reinforcing layer are designed and layered according to the performance requirements of the box shell, and then the plant fiber layer, the biodegradable plastic layer and the special reinforcing layer are compounded into the sheet material by heating and pressurizing.
Wherein the plant fiber layer may be a 100% pure plant fiber felt layer; or the cloth material is formed by spinning and weaving 100% of plant fiber; or is formed by mixing and weaving biodegradable plastic fibers and plant fibers according to a certain proportion; or wrapping plant fibers with biodegradable plastic fibers to form a wrapping yarn, followed by spinning, and the like.
As a preferred scheme of the utility model, the plant fiber layer adopts a plurality of layers of 100% pure plant fiber (such as cotton fiber, bamboo fiber or flax fiber) felt layers, the felt layers adopt plant chopped fiber as main raw materials and are prepared by adopting a non-woven fabric production technology; the biodegradable plastic layer is a sheet structure formed by heating and melting particles such as polylactic acid (PLA), aliphatic aromatic copolyester, poly (hydroxy butyrate valerate) (PHBV) and the like, passing through a shaping die and extruding, and is used for further enhancing the dart impact resistance of the material. The biodegradable plastic layers are arranged on the upper side and the lower side of a layer-spread structure formed by the multiple layers of felt sheets and are simultaneously inserted between the multiple layers of plant fiber felts and the reinforced fiber felts, the biodegradable plastic layers are melted and impregnated into the plant fibers and the reinforced fiber felts in the hot-pressing compounding process, and the fiber reinforced degradable plastic composite sheet with a smooth surface and uniform impregnation is formed after cooling.
As another preferred scheme of the utility model, the plant fiber layer adopts multilayer mixed woven cloth containing plant fiber. The plant fiber is cotton fiber, bamboo fiber or flax fiber, the other fiber for mixed weaving is one or more of polylactic acid fiber, Polyhydroxyalkanoate (PHA) fiber, aliphatic aromatic copolyester (PLA + PBTA) fiber or polyvinyl alcohol (PVA) fiber, and the two fibers form plant yarn and yarn of biodegradable material through carding, spinning and other processes. Then, the designed plain weave, twill weave or satin weave cloth is manufactured through a weaving procedure, and one layer or a plurality of layers of the mixed weave cloth manufactured by the method is adopted as a plant fiber layer in the utility model; the biodegradable plastic layer is polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester or polyvinyl alcohol and the like, and according to the requirement of the dart impact resistance of the material, a special enhancement layer can be added (or not selected), wherein the special enhancement layer is a thin glass fiber or carbon fiber felt layer, and the enhancement felt layer is prepared by adopting chopped glass or carbon fiber as a main raw material and adopting a non-woven fabric production technology. The biodegradable plastic layer is arranged on the upper side and the lower side of a layer paving structure formed by the plant fiber cloth layer and the reinforced fiber felt layer and is simultaneously inserted between the multiple layers of plant fiber blended cloth layers and the reinforced fiber felt, the biodegradable plastic layer is melted and impregnated into the plant fiber cloth and the reinforced fiber felt in the hot-pressing compounding process, and simultaneously, the polylactic acid fiber, the PHA fiber, the PLA + PBTA fiber or the PVA fiber and the like in the blended cloth are also melted by heat and are combined with the biodegradable plastic layer by hot melting, so that the fiber reinforced degradable plastic composite sheet with smooth surface and uniform impregnation is formed after the whole system is cooled.
As another preferred scheme of the utility model, the plant fiber layer adopts multilayer wrapping yarn woven cloth containing plant fiber. The plant fiber is cotton fiber, bamboo fiber or flax fiber, the fiber for wrapping is polylactic acid fiber, Polyhydroxyalkanoate (PHA) fiber, aliphatic aromatic copolyester (PLA + PBTA) fiber or polyvinyl alcohol (PVA) fiber and the like, and the blended yarn after wrapping is made into plain weave, twill weave or satin weave cloth in a weaving mode, the utility model discloses in adopt the one-layer or multi-layer blended weave cloth that this kind of method prepared as the plant fiber layer; the biodegradable plastic layer is polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester or polyvinyl alcohol and the like, and according to the requirement of the dart impact resistance of the material, a special enhancement layer can be added (or not selected), wherein the special enhancement layer is a thin glass fiber or carbon fiber felt layer, and the enhancement felt layer is prepared by adopting chopped glass or carbon fiber as a main raw material and adopting a non-woven fabric production technology. The biodegradable plastic layer is arranged on the upper side and the lower side of a layer paving structure formed by the plant fiber cloth layer and the reinforced fiber felt layer and is simultaneously inserted between the multiple layers of plant fiber blended cloth layers and the reinforced fiber felt, the biodegradable plastic layer is melted and impregnated into the plant fiber cloth and the reinforced fiber felt in the hot-pressing compounding process, and the polylactic acid fiber, the PHA fiber, the PLA + PBTA fiber or the PVA fiber and the like which play a wrapping role in the blended cloth layer are also heated to be melted and completely wrap the outer surface of the plant fiber, so that the fiber reinforced degradable plastic composite sheet with smooth surface and more uniform impregnation is formed after the whole system is cooled. It should be noted that the wrapping yarn containing plant fiber described above can also be a blended yarn produced by using fiber made of plant fiber and biodegradable plastic, where the blended yarn means that the plant fiber and the biodegradable fiber are uniformly distributed in the yarn interface, which is beneficial to the impregnation of the plant fiber after the biodegradable fiber is melted in the hot-pressing compounding process.
Example 2:
referring to fig. 1, a composite board for a luggage shell is formed by randomly combining and laminating three layered materials including a biodegradable plastic layer (1), a vegetable fiber woven layer (2) and an inorganic fiber reinforced layer (3), and all the layers are connected in a layered-paving composite manner;
the biodegradable plastic layer (1) is partially immersed into the plant fiber braided layer (2) and/or the inorganic fiber reinforced layer (3) which are in contact with the biodegradable plastic layer;
the biodegradable plastic layer (1) is made of any one or more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly-beta-hydroxybutyrate and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate;
the vegetable fiber weaving layer (2) is 100% of vegetable fiber felt or woven cloth formed by spinning and weaving 100% of vegetable fibers; or a woven cloth formed by blending biodegradable plastic fibers and plant fibers; or the weaving cloth is formed by wrapping plant fibers with biodegradable plastic fibers to form wrapping yarns and then weaving;
the inorganic fiber reinforced layer (3) is a non-woven fabric or a woven fabric made of any one of glass fiber, carbon fiber, basalt fiber and aramid fiber; or the woven cloth is formed by mixing and weaving a plurality of glass fibers, carbon fibers, basalt fibers and aramid fibers.
Further, in another embodiment, the three layered materials of the biodegradable plastic layer (1), the vegetable fiber woven layer (2) and the inorganic fiber reinforced layer (3) are respectively marked as A, B and C, and the combined overlapping mode of the three layered materials is ABACA, ABACBA or ABACA.
Further, in another embodiment, the plant fiber is any one or more of cotton fiber, hemp fiber, bamboo fiber and plant processing fiber; the biodegradable plastic is any one or more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly-beta-hydroxybutyrate and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate.
Further, in another embodiment, the plant processing fiber is a fiber prepared from any one or more of straw, sugar cane, coconut, and palm.
Further, in another embodiment, the composite board for the luggage shell is formed by overlapping a biodegradable plastic layer (1), a plant fiber woven layer (2), a biodegradable plastic layer (1), an inorganic fiber reinforced layer (3) and a biodegradable plastic layer (1) which are sequentially paved, and the layers are connected in a paving and compounding manner.
Further, in another embodiment, the biodegradable plastic layer (1) is made of polylactic acid.
Further, in another embodiment, the plant fiber braided layer (2) is a flax fiber felt or a bamboo fiber felt.
Further, in another embodiment, the inorganic fiber reinforcement layer (3) is a glass fiber mat or a carbon fiber mat.
Example 3:
a biodegradable luggage shell is made of composite plates for the luggage shell;
the composite board for the box casing body is formed by randomly combining and superposing three layered materials including a biodegradable plastic layer (1), a plant fiber woven layer (2) and an inorganic fiber reinforced layer (3), and the layers are connected in a layer-by-layer compounding manner;
the biodegradable plastic layer (1) is partially immersed into the plant fiber braided layer (2) and/or the inorganic fiber reinforced layer (3) which are in contact with the biodegradable plastic layer;
in this embodiment, the biodegradable luggage shell is made of the composite board for the luggage shell by using a hot press molding process (refer to the manufacturing process of the biodegradable luggage shell described above).
In this embodiment, the three layered materials of the biodegradable plastic layer (1), the vegetable fiber woven layer (2) and the inorganic fiber reinforced layer (3) are respectively identified as A, B and C, and the combined overlapping mode of the three layered materials is ABACA.
In this embodiment, the biodegradable plastic layer (1) is made of polylactic acid.
In the embodiment, the vegetable fiber woven layer (2) is a flax fiber felt.
In the present embodiment, the inorganic fiber reinforced layer (3) is a glass fiber mat.
Example 4:
a biodegradable luggage shell is made of composite plates for the luggage shell;
the composite board for the box casing body is formed by randomly combining and superposing three layered materials including a biodegradable plastic layer (1), a plant fiber woven layer (2) and an inorganic fiber reinforced layer (3), and the layers are connected in a layer-by-layer compounding manner;
the biodegradable plastic layer (1) is partially immersed into the plant fiber braided layer (2) and/or the inorganic fiber reinforced layer (3) which are in contact with the biodegradable plastic layer;
in this embodiment, the biodegradable luggage shell is made of the composite board for the luggage shell by using a hot press molding process (refer to the manufacturing process of the biodegradable luggage shell described above).
In this embodiment, the three layered materials of the biodegradable plastic layer (1), the vegetable fiber woven layer (2) and the inorganic fiber reinforced layer (3) are respectively identified as A, B and C, and the combined overlapping mode of the three layered materials is abaacaba.
In this embodiment, the biodegradable plastic layer (1) is made of polylactic acid.
In the embodiment, the plant fiber woven layer (2) is a bamboo fiber felt.
In the present embodiment, the inorganic fiber reinforced layer (3) is a glass fiber mat.
Example 5:
a biodegradable luggage shell is made of composite plates for the luggage shell;
the composite board for the box casing body is formed by randomly combining and superposing three layered materials including a biodegradable plastic layer (1), a plant fiber woven layer (2) and an inorganic fiber reinforced layer (3), and the layers are connected in a layer-by-layer compounding manner;
the biodegradable plastic layer (1) is partially immersed into the plant fiber braided layer (2) and/or the inorganic fiber reinforced layer (3) which are in contact with the biodegradable plastic layer;
in this embodiment, the biodegradable luggage shell is made of the composite board for the luggage shell by using a hot press molding process (refer to the manufacturing process of the biodegradable luggage shell described above).
In this embodiment, the three layered materials of the biodegradable plastic layer (1), the vegetable fiber woven layer (2) and the inorganic fiber reinforced layer (3) are respectively identified as A, B and C, and the combined overlapping mode of the three layered materials is ABABACA.
In the embodiment, the composite plastic layer is formed by overlapping a biodegradable plastic layer (1), a plant fiber woven layer (2), a biodegradable plastic layer (1), an inorganic fiber reinforced layer (3) and a biodegradable plastic layer (1) which are sequentially paved in layers, and the layers are connected in a layer-paving composite mode.
In this embodiment, the biodegradable plastic layer (1) is made of polylactic acid.
In the embodiment, the plant fiber woven layer (2) is a bamboo fiber felt.
In the embodiment, the inorganic fiber reinforced layer (3) is a carbon fiber felt.
The following is to the utility model discloses biodegradable case and bag casing (the thickness of case and bag composite board for the casing is 1.25mm) and ordinary case and bag plastic casing (thickness is the same) that embodiment 3 to 5 obtained carry out performance test, and the test result is shown in table 1:
TABLE 1
Adopt the utility model discloses a technology of case and bag for casing composite board preparation biodegradable case and bag casing is as follows:
comprises the following steps:
s1, preparing three layered materials, namely a biodegradable plastic layer (1), a plant fiber woven layer (2) and an inorganic fiber reinforced layer (3) respectively;
s2, marking the prepared three layered materials of the biodegradable plastic layer (1), the vegetable fiber braided layer (2) and the inorganic fiber reinforced layer (3) as A, B and C respectively, and carrying out layer-laying and overlapping on the three layered materials according to the combined overlapping mode of ABABACA;
s3, placing the layered materials into a hot press, applying 2MPa pressure at 170 ℃, keeping the pressure for 1 minute, and naturally cooling to obtain the composite board for the luggage shell;
s4, placing the composite board for the luggage shell in a heating cavity of a female die of a hot press, and fixing the composite board with a clamp;
s5, heating the composite board for the luggage shell to a softening temperature, moving the luggage shell male die towards the female die direction, pressurizing, enabling the composite board for the luggage shell to be tightly attached to the inner wall of the female die under the mechanical pressure of the male die to form the shell, cooling, and then forming and trimming to obtain the biodegradable luggage shell.
The thickness of the composite board for the box enclosure body is 1.25 mm.
In step S1, the biodegradable plastic layer (1) is made of any one or more blends of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly-beta-hydroxybutyrate, and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate;
the vegetable fiber weaving layer (2) is 100% of vegetable fiber felt or woven cloth formed by spinning and weaving 100% of vegetable fibers; or a woven cloth formed by blending biodegradable plastic fibers and plant fibers; or the weaving cloth is formed by wrapping plant fibers with biodegradable plastic fibers to form wrapping yarns and then weaving;
the inorganic fiber reinforced layer (3) is a non-woven fabric or a woven fabric made of any one of glass fiber, carbon fiber, basalt fiber and aramid fiber; or the woven cloth is formed by mixing and weaving a plurality of glass fibers, carbon fibers, basalt fibers and aramid fibers;
the plant fiber is any one or more of cotton fiber, hemp fiber, bamboo fiber and plant processing fiber; the plant processing fiber is fiber prepared from any one or more of straw, sugarcane, coconut and palm.
Preferably, the plant fiber woven layer (2) is woven cloth formed by blending biodegradable plastic fibers and plant fibers, and the preparation method is as follows: the plant fibers are arranged along the advancing direction of the fabric to form warp yarns, and the biodegradable plastic fibers are transversely arranged to form weft yarns; then weaving the warp yarns and the weft yarns together into a cloth shape by adopting weaving equipment and a weaving process; the biodegradable plastic is any one or more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly-beta-hydroxybutyrate and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate.
Preferably, the preparation of the biodegradable plastic layer (1): adding biodegradable plastic particles into a hopper of a plastic extruder, rotating a plasticizing screw and heating the biodegradable plastic particles by the aid of an auxiliary heating element to melt the biodegradable plastic particles, enabling the biodegradable plastic particles to pass through a slit die head under the driving pressure of the extruder screw to form a lamellar plastic melt, and then applying attraction to the plastic melt to pass through a series of cooling rollers and guide rollers to be shaped into uniform sheets; and finally, cutting edges and rolling to prepare the biodegradable plastic sheet with the thickness of 0.1-1 mm.
Preferably, the inorganic fiber reinforced layer (3) is prepared by adopting chopped glass fibers or carbon fibers as raw materials and adopting a non-woven fabric production process.
Preferably, the diameters of the chopped glass fibers and the carbon fibers are both 3-18 micrometers, and the lengths of the chopped glass fibers and the carbon fibers are both 3-25 millimeters.
In order to further increase the impregnability of the fiber mat layer and improve the bonding strength between the glass fibers or carbon fibers and the biodegradable plastic, the glass mat layer may be further subjected to surface treatment, such as adding a suitable silane coupling agent and other auxiliary agents (such as a dispersing agent, a compatilizer, a binder, an antioxidant, etc.).
Preferably, the thickness of the composite board for the luggage shell is 1-1.5 mm.
Preferably, the biodegradable plastic layer (1) is partially impregnated into the vegetable fiber braided layer (2) and/or the inorganic fiber reinforced layer (3) which are in contact with the biodegradable plastic layer.
Preferably, the composite board for the luggage shell is formed by overlapping a biodegradable plastic layer (1), a plant fiber woven layer (2), a biodegradable plastic layer (1), an inorganic fiber reinforced layer (3) and a biodegradable plastic layer (1) which are sequentially paved in layers, and the layers are connected in a layer-paving composite mode.
Preferably, the biodegradable plastic layer (1) is made of polylactic acid.
Preferably, the plant fiber woven layer (2) is a flax fiber felt or a bamboo fiber felt.
Preferably, the inorganic fiber reinforced layer (3) is a glass fiber felt or a carbon fiber felt.
According to the description and drawings of the present invention, the composite board for luggage case can be easily manufactured or used by those skilled in the art, and the positive effects described in the present invention can be produced.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (8)
1. A composite board for a case shell is characterized in that: the composite board for the box casing body is formed by randomly combining and superposing three layered materials including a biodegradable plastic layer (1), a plant fiber woven layer (2) and an inorganic fiber reinforced layer (3), and the layers are connected in a layer-by-layer compounding manner;
the biodegradable plastic layer (1) is partially immersed into the plant fiber braided layer (2) and/or the inorganic fiber reinforced layer (3) which are in contact with the biodegradable plastic layer;
the biodegradable plastic layer (1) is made of any one or more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly-beta-hydroxybutyrate and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate;
the vegetable fiber weaving layer (2) is 100% of vegetable fiber felt or woven cloth formed by spinning and weaving 100% of vegetable fibers; or a woven cloth formed by blending biodegradable plastic fibers and plant fibers; or the weaving cloth is formed by wrapping plant fibers with biodegradable plastic fibers to form wrapping yarns and then weaving;
the inorganic fiber reinforced layer (3) is a non-woven fabric or a woven fabric made of any one of glass fiber, carbon fiber, basalt fiber and aramid fiber; or the woven cloth is formed by mixing and weaving a plurality of glass fibers, carbon fibers, basalt fibers and aramid fibers.
2. The composite board for luggage case cases according to claim 1, characterized in that: the three layered materials of the biodegradable plastic layer (1), the plant fiber woven layer (2) and the inorganic fiber reinforced layer (3) are respectively marked as A, B and C, and the three layered materials are combined and overlapped in an ABACA, ABACBA or ABACA mode.
3. The composite board for luggage case cases according to claim 1, characterized in that: the plant fiber is any one or more of cotton fiber, hemp fiber, bamboo fiber and plant processing fiber; the biodegradable plastic is any one or more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly-beta-hydroxybutyrate and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate.
4. The composite board for luggage cases according to claim 3, characterized in that: the plant processing fiber is fiber prepared from any one or more of straw, sugarcane, coconut and palm.
5. The composite board for luggage case cases according to claim 1, characterized in that: the composite board for the box casing body is formed by overlapping a biodegradable plastic layer (1), a plant fiber woven layer (2), a biodegradable plastic layer (1), an inorganic fiber reinforced layer (3) and a biodegradable plastic layer (1) which are sequentially paved in layers, and the layers are connected in a layer-paving composite mode.
6. The composite board for luggage case cases according to claim 1, characterized in that: the biodegradable plastic layer (1) is made of polylactic acid.
7. The composite board for luggage case cases according to claim 1, characterized in that: the plant fiber woven layer (2) is a flax fiber felt or a bamboo fiber felt.
8. The composite board for luggage case cases according to claim 1, characterized in that: the inorganic fiber reinforced layer (3) is a glass fiber felt or a carbon fiber felt.
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| CN202020657905.7U CN212555296U (en) | 2020-04-27 | 2020-04-27 | Composite board for case shell |
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| CN202020657905.7U CN212555296U (en) | 2020-04-27 | 2020-04-27 | Composite board for case shell |
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Denomination of utility model: A composite board for luggage shells Effective date of registration: 20231124 Granted publication date: 20210219 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Jiaxing Pinghu Sub branch Pledgor: JIAXING LINGKE MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2023980067402 |