CN111497414A - Manufacturing process of biodegradable luggage shell - Google Patents
Manufacturing process of biodegradable luggage shell Download PDFInfo
- Publication number
- CN111497414A CN111497414A CN202010341589.7A CN202010341589A CN111497414A CN 111497414 A CN111497414 A CN 111497414A CN 202010341589 A CN202010341589 A CN 202010341589A CN 111497414 A CN111497414 A CN 111497414A
- Authority
- CN
- China
- Prior art keywords
- layer
- fiber
- biodegradable
- luggage shell
- biodegradable plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0223—Vinyl resin fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
- B32B2262/0269—Aromatic polyamide fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/12—Conjugate fibres, e.g. core/sheath or side-by-side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/14—Mixture of at least two fibres made of different materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/716—Degradable
- B32B2307/7163—Biodegradable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
Abstract
The invention discloses a manufacturing process of a biodegradable luggage shell, which comprises the following steps: s1, preparing three layered materials, namely a biodegradable plastic layer, a vegetable fiber weaving layer and an inorganic fiber reinforced layer respectively; s2, laying and superposing the three layered materials; s3, putting the layered materials into a hot press, applying pressure of 1.8-2.2 MPa at 168-172 ℃, maintaining the pressure for 0.5-1.5 minutes, 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, and then hot press molding. The product obtained by the manufacturing process of the biodegradable luggage shell has the characteristics of light weight, strong pressure resistance, good toughness, strong impact resistance and biodegradability, and has wide market application prospect.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a manufacturing process of a biodegradable luggage 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 (PC L), 2) polybutylene succinate (PBS), 3) polylactic acid (P L A), 4) Polyhydroxyalkanoate (PHA), 5) aliphatic aromatic copolyesters (P L A + PBTA) such as the aliphatic aromatic random copolyester (Ecoflex) manufactured by BASF corporation, Germany, 6) polyvinyl alcohol (PVA), 7) poly- β -hydroxybutyrate (PHB) and copolymers of 3-hydroxybutyrate and 3-hydroxyvalerate (PHBV) and the like.
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 situation, the invention provides a manufacturing process of a biodegradable luggage shell, which can effectively solve the problems.
Disclosure of Invention
The invention aims to provide a manufacturing process of a biodegradable luggage shell. The manufacturing process of the biodegradable luggage shell provided by the invention has the advantages that the biodegradable luggage shell has the characteristics of light weight, strong pressure resistance, good toughness, strong impact resistance and biodegradability and has wide market application prospect through raw material screening and material layer-laying structural design and strictly controlling the process condition parameters of each step.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a manufacturing process of a biodegradable luggage shell 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 plant fiber braided layer (2) and the inorganic fiber reinforced layer (3) as A, B and C respectively, and carrying out layer-by-layer overlapping on the three layered materials according to the combined overlapping mode of ABACA, ABACABA or ABACA;
s3, putting the layered materials into a hot press, applying pressure of 1.8-2.2 MPa at 168-172 ℃, maintaining the pressure for 0.5-1.5 minutes, 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 a luggage shell male die towards a female die direction, pressurizing, enabling the composite board for the luggage shell to cling to the inner wall of the female die under the mechanical pressure of the male die to form a shell, cooling, and then forming and trimming to obtain the biodegradable luggage shell;
in the 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- β -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.
The manufacturing process of the biodegradable luggage shell provided by the invention has the advantages that the biodegradable luggage shell has the characteristics of light weight, strong pressure resistance, good toughness, strong impact resistance and biodegradability and has wide market application prospect through raw material screening and material layer-laying structural design and strictly controlling the process condition parameters of each step.
Preferably, the plant fiber braided layer (2) is a braided cloth formed by blending biodegradable plastic fibers and plant fibers, the preparation method comprises the steps of arranging the plant fibers along the advancing direction of the fabric to form warp yarns, transversely arranging the biodegradable plastic fibers to form weft yarns, and then interweaving the warp yarns and the weft yarns together by using braiding equipment and a braiding process to form a cloth shape, wherein the biodegradable plastic is any one or a mixture of more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly- β -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 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.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the manufacturing process of the biodegradable luggage shell provided by the invention has the advantages that the biodegradable luggage shell has the characteristics of light weight, strong pressure resistance, good toughness, strong impact resistance and biodegradability and has wide market application prospect through raw material screening and material layer-laying structural design and strictly controlling the process condition parameters of each step.
The invention adopts the biodegradable plastic of the biodegradable plastic layer (1) as the base material to achieve the degradable requirement, adopts the plant fiber woven layer (2), especially flax fiber, bamboo fiber and the like, improves the toughness and the impact resistance while reducing the weight of the case, and adopts the inorganic fiber reinforced layer (3), especially inorganic glass fiber (thin) felt or carbon fiber (thin) felt material as the inorganic fiber reinforced layer (3), improves the rigidity, the wear resistance and the pressure resistance of the case shell.
The invention adopts plant fiber and biodegradable plastic system, realizes the biodegradability of the case, simultaneously the selective use of inorganic reinforced fiber, enhances the mechanical property of the biodegradable thermoplastic material, and particularly improves the toughness and the shock resistance while improving the rigidity of the shell. 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 that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
A manufacturing process of a biodegradable luggage shell 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 plant fiber braided layer (2) and the inorganic fiber reinforced layer (3) as A, B and C respectively, and carrying out layer-by-layer overlapping on the three layered materials according to the combined overlapping mode of ABACA, ABACABA or ABACA;
s3, putting the layered materials into a hot press, applying pressure of 1.8-2.2 MPa at 168-172 ℃, maintaining the pressure for 0.5-1.5 minutes, 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 a luggage shell male die towards a female die direction, pressurizing, enabling the composite board for the luggage shell to cling to the inner wall of the female die under the mechanical pressure of the male die to form a shell, cooling, and then forming and trimming to obtain the biodegradable luggage shell;
in the 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- β -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.
Specifically, the plant fiber layer laid in the technical scheme of the invention is formed by blending one or more fibers prepared from cotton, hemp, bamboo fibers or straws, sugarcane, coconut, palm and other plants, the biodegradable plastic layer is formed by blending one or more materials of polycaprolactone (PC L), polybutylene succinate (PBS), polylactic acid (P L A), Polyhydroxyalkanoate (PHA), aliphatic aromatic copolyester (P L A + PBTA), polyvinyl alcohol (PVA), poly- β -hydroxybutyrate (PHB) and a copolymer (PHBV) of 3-hydroxybutyrate and 3-hydroxyvalerate, and the special enhancement layer (inorganic fiber enhancement layer (3)) is formed by blending one or more materials of glass fiber, carbon fiber, basalt fiber, aramid fiber and the like.
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.
The plant fiber layer is a multilayer 100% pure plant fiber (such as cotton fiber, bamboo fiber or flax fiber) felt layer, the felt layer is prepared by adopting plant chopped fibers as main raw materials and adopting a non-woven fabric production technology, the biodegradable plastic layer is a sheet structure formed by heating, melting and passing through a shaping die and extruding polylactic acid P L A, aliphatic aromatic copolyester, PHBV and other particles, the sheet structure is used for further enhancing the dart impact resistance of the material, the special enhancement layer is a thin glass fiber or thin carbon fiber felt layer, the felt layer is prepared by adopting a non-woven fabric production technology by adopting chopped glass or carbon fiber as main raw materials, the biodegradable plastic layers are arranged on the upper side and the lower side of a layer paving structure formed by the multilayer felt sheet and are simultaneously inserted between the multilayer plant fiber felt and a reinforced fiber felt, the biodegradable plastic layers are melted and impregnated into the plant fiber and the reinforced fiber felt in a hot-pressing compounding process, and the fiber reinforced degradable plastic composite sheet with a smooth surface and uniform impregnation is formed after cooling.
According to another preferred embodiment of the present invention, the plant fiber layer is a multi-layer blended fabric containing plant fibers, wherein the plant fibers are cotton fibers, bamboo fibers or flax fibers, the other fibers for blended weaving are polylactic acid fibers, Polyhydroxyalkanoate (PHA) fibers, aliphatic aromatic copolyester (P L a + PBTA) fibers or polyvinyl alcohol (PVA) fibers, the two fibers are respectively formed into plant yarns and yarns of biodegradable materials through carding, spinning, and the like, and then the designed plain, twill or satin cloth is manufactured through a weaving process, the blended fabric prepared by the method is used as the plant fiber layer, the biodegradable plastic layer is polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester or polyvinyl alcohol, and the like, a special reinforcing layer can be added (or not selected) according to the requirement of the falling impact resistance of the materials, the special reinforcing layer is a thin glass fiber or carbon fiber felt layer, the reinforcing layer is prepared by using chopped glass or carbon fiber as a main raw material and adopting a non-woven fabric production technology, the biodegradable fiber layer and the PVA layer are arranged between the plant fiber layer and the plant fiber layer, the pba reinforcing fiber layer and the plastic layer are impregnated into a hot-pressing, the composite fiber layer is uniformly impregnated into a composite fiber felt layer, and the composite fiber felt layer is formed by dipping the hot-melt-forming a hot-pressing process, and the composite fiber reinforced plastic fiber felt layer is uniformly combined with the composite material layer L.
According to another preferred embodiment of the present invention, the plant fiber layer is a multilayer wrapping yarn woven fabric containing plant fibers, the plant fibers are cotton fibers, bamboo fibers or flax fibers, the wrapping fibers are polylactic acid fibers, Polyhydroxyalkanoate (PHA) fibers, aliphatic aromatic copolyester (P L a + PBTA) fibers or polyvinyl alcohol (PVA) fibers, and the like, the wrapped blended yarn is woven into plain, twill or satin cloth, one or more layers of the blended woven fabric prepared by the method are used as the plant fiber layer, the biodegradable plastic layers are polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester or polyvinyl alcohol, and the like, according to the requirement of dart impact resistance of the material, special reinforcing layers can be added (or not selected), the special glass fibers or carbon fiber felt layers are inserted between the plant fiber layer and the multilayer woven fabric layer, the reinforcing plastic layers are prepared by using a non-woven fabric production technology using chopped glass or carbon fiber as a main raw material, the biodegradable plastic layers are arranged on the upper side and the lower side of the layer formed by the plant fiber layer and the reinforcing fiber layer, and the blended woven fabric layer are uniformly impregnated into the composite fiber layer containing the biodegradable plastic material, the biodegradable fiber layer is a composite fiber layer, the biodegradable fiber layer is prepared by using a hot-melt process for uniformly impregnating the blended yarn-impregnated fiber woven fabric, and the biodegradable plastic fiber layer, and the composite fiber impregnated into the composite fiber layer L, the biodegradable plastic fiber layer, the biodegradable fiber impregnated fiber layer is also described herein, the biodegradable plastic fiber layer, the biodegradable fiber layer, the composite fiber impregnated fiber layer is uniformly impregnated into the composite fiber impregnated into the biodegradable plastic fiber impregnated into the composite fiber layer, and the biodegradable plastic fiber impregnated into the composite fiber impregnated into the composite fiber impregnated fiber layer.
Example 1:
a manufacturing process of a biodegradable luggage shell 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 plant fiber braided layer (2) and the inorganic fiber reinforced layer (3) as A, B and C respectively, and carrying out layer-by-layer overlapping on the three layered materials according to the combined overlapping mode of ABACA, ABACABA or ABACA;
s3, putting the layered materials into a hot press, applying pressure of 1.8-2.2 MPa at 168-172 ℃, maintaining the pressure for 0.5-1.5 minutes, 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 a luggage shell male die towards a female die direction, pressurizing, enabling the composite board for the luggage shell to cling to the inner wall of the female die under the mechanical pressure of the male die to form a shell, cooling, and then forming and trimming to obtain the biodegradable luggage shell;
in the 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- β -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 braided layer (2) is a braided cloth formed by blending biodegradable plastic fibers and plant fibers, the preparation method comprises the steps of arranging the plant fibers along the advancing direction of the fabric to form warp yarns, transversely arranging the biodegradable plastic fibers to form weft yarns, and then interweaving the warp yarns and the weft yarns together by using braiding equipment and a braiding process to form a cloth shape, wherein the biodegradable plastic is any one or a mixture of more of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly- β -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.
Example 2:
a manufacturing process of a biodegradable luggage shell 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 ABACA;
s3, putting the layered materials into a hot press, applying pressure of 2.2MPa at 168 ℃, keeping the pressure for 1.5 minutes, 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 a luggage shell male die towards a female die direction, pressurizing, enabling the composite board for the luggage shell to cling to the inner wall of the female die under the mechanical pressure of the male die to form a shell, cooling, and then forming and trimming to obtain the biodegradable luggage shell;
in step S1, the biodegradable plastic layer (1) is made of aliphatic aromatic copolyester;
in this embodiment, the plant fiber woven layer (2) is a woven fabric formed by blending biodegradable plastic fibers and plant fibers, and the preparation method thereof 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 aliphatic aromatic copolyester.
In the present example, 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.
In this embodiment, the composite sheet material for the box enclosure body has a thickness of 1.25 mm.
In the present embodiment, the biodegradable plastic layer (1) is partially impregnated into the vegetable fibre woven layer (2) and/or the inorganic fibre reinforced layer (3) in contact therewith.
In the present embodiment, the inorganic fiber reinforced layer (3) is a glass fiber mat.
Example 3:
a manufacturing process of a biodegradable luggage shell 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 plant 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 ABACABA;
s3, placing the layered materials into a hot press, applying a pressure of 1.8MPa at the temperature of 172 ℃, maintaining the pressure for 0.5 minute, and naturally cooling to obtain the composite board for the case 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 a luggage shell male die towards a female die direction, pressurizing, enabling the composite board for the luggage shell to cling to the inner wall of the female die under the mechanical pressure of the male die to form a shell, cooling, and then forming and trimming to obtain the biodegradable luggage shell;
in step S1, the biodegradable plastic layer (1) is made of a material with a mass ratio of 1: 1, a blend of polybutylene succinate and polylactic acid;
in the present example, 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.
In this embodiment, the composite sheet material for the box enclosure body has a thickness of 1.25 mm.
In the present embodiment, the biodegradable plastic layer (1) is partially impregnated into the vegetable fibre woven layer (2) and/or the inorganic fibre reinforced layer (3) in contact therewith.
In the embodiment, the vegetable fiber woven layer (2) is a flax fiber felt.
In the embodiment, the inorganic fiber reinforced layer (3) is a carbon fiber felt.
Example 4:
a manufacturing process of a biodegradable luggage shell 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.
In this embodiment, the composite sheet material for the box enclosure body has a thickness of 1.25 mm.
In the present embodiment, the biodegradable plastic layer (1) is partially impregnated into the vegetable fibre woven layer (2) and/or the inorganic fibre reinforced layer (3) in contact therewith.
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.
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 a composite board for the luggage shell by a hot press molding process.
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.
The manufacturing process 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.
Example 6:
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 a composite board for the luggage shell by a hot press molding process.
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.
The manufacturing process 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.
Example 7:
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 a composite board for the luggage shell by a hot press molding process.
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 manufacturing process 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 biodegradable luggage shell obtained in examples 5 to 7 of the present invention (the thickness of the composite sheet for luggage shell is 1.25mm) and the plastic shell of a common luggage (the same thickness) were subjected to the following performance tests, and the test results are shown in table 1:
TABLE 1
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. A manufacturing process of a biodegradable luggage shell is characterized by comprising 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 plant fiber braided layer (2) and the inorganic fiber reinforced layer (3) as A, B and C respectively, and carrying out layer-by-layer overlapping on the three layered materials according to the combined overlapping mode of ABACA, ABACABA or ABACA;
s3, putting the layered materials into a hot press, applying pressure of 1.8-2.2 MPa at 168-172 ℃, maintaining the pressure for 0.5-1.5 minutes, 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 a luggage shell male die towards a female die direction, pressurizing, enabling the composite board for the luggage shell to cling to the inner wall of the female die under the mechanical pressure of the male die to form a shell, cooling, and then forming and trimming to obtain the biodegradable luggage shell;
in the 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- β -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.
2. The manufacturing process of the biodegradable luggage shell according to claim 1, wherein the vegetable fiber woven layer (2) is woven cloth woven by biodegradable plastic fibers and vegetable fibers, the manufacturing method comprises the steps of arranging the vegetable fibers along the traveling direction of the fabric to form warp yarns, transversely arranging the biodegradable plastic fibers to form weft yarns, and then interweaving the warp yarns and the weft yarns together by using weaving equipment and a weaving process to form the cloth shape, wherein the biodegradable plastic is any one or more blends of polycaprolactone, polybutylene succinate, polylactic acid, polyhydroxyalkanoate, aliphatic aromatic copolyester, polyvinyl alcohol, poly- β -hydroxybutyrate and a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate.
3. Process for making a biodegradable luggage shell according to claim 1, characterized in that 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.
4. The manufacturing process of the biodegradable luggage shell according to claim 1, wherein the inorganic fiber reinforced layer (3) is prepared from chopped glass fiber or carbon fiber by a non-woven fabric production process.
5. The manufacturing process of the biodegradable luggage shell according to claim 1, wherein the thickness of the composite board for the luggage shell is 1-1.5 mm.
6. Process for making a biodegradable luggage shell according to claim 1, characterized in that the biodegradable plastic layer (1) is partially impregnated into the vegetable fibre knitted layer (2) and/or the inorganic fibre reinforced layer (3) in contact therewith.
7. The manufacturing process of the biodegradable luggage shell according to claim 1, characterized in that the biodegradable luggage shell is formed by laminating sequentially 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), and the layers are connected in a layer-by-layer composite manner.
8. The manufacturing process of the biodegradable luggage shell according to claim 1, wherein the biodegradable plastic layer (1) is made of polylactic acid.
9. A process for making a biodegradable luggage shell according to claim 1, characterized in that the vegetable fibre knitted layer (2) is a flax fibre felt or a bamboo fibre felt.
10. A process for making a biodegradable luggage shell according to claim 1, characterized in that the inorganic fiber reinforcement layer (3) is a glass fiber mat or a carbon fiber mat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341589.7A CN111497414A (en) | 2020-04-27 | 2020-04-27 | Manufacturing process of biodegradable luggage shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341589.7A CN111497414A (en) | 2020-04-27 | 2020-04-27 | Manufacturing process of biodegradable luggage shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111497414A true CN111497414A (en) | 2020-08-07 |
Family
ID=71874774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010341589.7A Pending CN111497414A (en) | 2020-04-27 | 2020-04-27 | Manufacturing process of biodegradable luggage shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111497414A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060713A (en) * | 2020-09-23 | 2020-12-11 | 湖南省亚玛图工贸有限公司 | Case and bag shell material |
| CN113059894A (en) * | 2021-04-20 | 2021-07-02 | 宁波盒象科技有限公司 | Production process of high-strength plate |
| CN114229217A (en) * | 2021-12-27 | 2022-03-25 | 蔡思杰 | Environment-friendly packaging bag capable of being recycled for multiple times and manufacturing process and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656666A (en) * | 2018-03-16 | 2018-10-16 | 嘉兴领科材料技术有限公司 | A kind of light-high-strength luggage shell structure and its manufacture craft |
| CN110626015A (en) * | 2019-10-10 | 2019-12-31 | 吉林大学 | Natural plant fiber hybrid composite material and preparation method thereof |
| CN110944827A (en) * | 2017-07-25 | 2020-03-31 | 罗图公司 | Method and device for producing composite components having complex shapes |
| CN110982207A (en) * | 2019-12-13 | 2020-04-10 | 东莞市莎米特箱包有限公司 | Material for luggage case shell and preparation method thereof |
-
2020
- 2020-04-27 CN CN202010341589.7A patent/CN111497414A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944827A (en) * | 2017-07-25 | 2020-03-31 | 罗图公司 | Method and device for producing composite components having complex shapes |
| CN108656666A (en) * | 2018-03-16 | 2018-10-16 | 嘉兴领科材料技术有限公司 | A kind of light-high-strength luggage shell structure and its manufacture craft |
| CN110626015A (en) * | 2019-10-10 | 2019-12-31 | 吉林大学 | Natural plant fiber hybrid composite material and preparation method thereof |
| CN110982207A (en) * | 2019-12-13 | 2020-04-10 | 东莞市莎米特箱包有限公司 | Material for luggage case shell and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060713A (en) * | 2020-09-23 | 2020-12-11 | 湖南省亚玛图工贸有限公司 | Case and bag shell material |
| CN113059894A (en) * | 2021-04-20 | 2021-07-02 | 宁波盒象科技有限公司 | Production process of high-strength plate |
| CN114229217A (en) * | 2021-12-27 | 2022-03-25 | 蔡思杰 | Environment-friendly packaging bag capable of being recycled for multiple times and manufacturing process and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Aisyah et al. | Thermal properties of woven kenaf/carbon fibre-reinforced epoxy hybrid composite panels | |
| CN111497414A (en) | Manufacturing process of biodegradable luggage shell | |
| AP1177A (en) | Poly-coated paper composites. | |
| Tholibon et al. | Kenaf fiber composites: a review on synthetic and biodegradable polymer matrix | |
| US20120220179A1 (en) | Spun yarn and intermediate for fiber-reinforced resin, and molded article of fiber-reinforced resin using the same | |
| CN105585867A (en) | Wood-plastic composite material reinforced by waste fabrics and preparation method thereof | |
| CN101914240A (en) | Regenerated wire drawing modified material of waste polypropylene woven bags and preparation method thereof | |
| JP5911755B2 (en) | Manufacturing method of fiber reinforced resin pellet and manufacturing method of fiber reinforced resin molded body | |
| CN102061041B (en) | Modified engineering plastic produced by fiber waste | |
| EP0510927A2 (en) | Fiber-reinforced thermoplastic sheet and process for the production thereof | |
| KR100921114B1 (en) | Preparation method of Poly lactic acid/natural fiber composites | |
| CN102619023A (en) | Polylactic acid composite fiber interior material and preparation method thereof | |
| EP3049563A1 (en) | Method of manufacturing a product from textile waste and product produced thereby | |
| CN101994259B (en) | Three-dimensional orthogonal spun linen reinforced polypropylene composite material | |
| CN103361880A (en) | Completely degradable high shock resistance composite, and preparation method and application thereof | |
| WO2016151363A1 (en) | Reuse of used woven or knitted textile | |
| CN103317801A (en) | Blend fiber plate and preparation method thereof | |
| KR20150094608A (en) | Composite material containing renewable raw materials and method for the production thereof | |
| CN212555296U (en) | Composite board for case shell | |
| JP2014234427A (en) | Fiber assembly for fiber-reinforced resin, fiber-reinforced resin sheet, and fiber-reinforced resin molded body | |
| CN107161495A (en) | The preparation method of fresh food heat preservation environment protection speed fortune packaging bag | |
| CN104861209A (en) | Environmental-friendly plastic film and preparation method thereof | |
| Bhattacharjee et al. | Effects of fire retardants on jute fiber reinforced polyvinyl chloride/polypropylene hybrid composites | |
| CN209955453U (en) | Thermoplastic polymer product | |
| Shanks | Recycled synthetic polymer fibers in composites |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200807 |