CN113910712A - Continuous fiber thermoplastic prepreg reinforced building batten and preparation method and equipment thereof - Google Patents
Continuous fiber thermoplastic prepreg reinforced building batten and preparation method and equipment thereof Download PDFInfo
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- CN113910712A CN113910712A CN202111167813.6A CN202111167813A CN113910712A CN 113910712 A CN113910712 A CN 113910712A CN 202111167813 A CN202111167813 A CN 202111167813A CN 113910712 A CN113910712 A CN 113910712A
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- 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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
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- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- 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
- B32B2307/552—Fatigue strength
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a continuous fiber thermoplastic prepreg reinforced building batten and a preparation method and equipment thereof, wherein the batten is a middle core layer, the upper surface and the lower surface of the batten are respectively provided with 3 layers of symmetrical and same structures, and the structure comprises the following components in sequence from outside to inside: a protective layer, a reinforcing layer, and an adhesive layer; the preparation process equipment comprises coating adhesive resin of an adhesive layer, coating continuous fiber thermoplastic prepreg of an enhancement layer, coating thermoplastic resin of a protective layer, cooling, shaping and cutting; the preparation device mainly comprises a hot pressing device and a hot air heating device; the material of the invention has simple preparation method and high efficiency, can effectively improve the strength, the waterproof, the weather-proof and the moisture-proof performance of the building batten composite material, increases the cycle times of the building battens and reduces the usage amount of wood.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a continuous fiber thermoplastic prepreg reinforced building batten and a preparation method and equipment thereof.
Background
In recent years, with the improvement of environmental protection requirements, the exploitation amount of wood is gradually reduced, but the demand of the traditional building industry for wood is still higher. The wood used in the traditional building engineering wood beam is tree species such as radiata pine, douglas fir, pinus camphorata, poplar, willow and the like.
The Chinese patent CN211441245U discloses a composite material building block, which comprises wood chips, an inner resin layer, a continuous fiber composite felt and an outer resin layer from inside to outside in sequence, wherein the wood chips or templates are used as a substrate, and the surfaces of the wood chips or templates are coated with the resin layer and the continuous fiber composite felt layer by adopting a pultrusion process. However, the thermosetting process is not environment-friendly, and the glass fiber mat has the defects of insufficient wettability, infirm bonding and the like.
The invention patent CN212979159U discloses a novel batten composite production line, which is characterized in that a fiber winding module is used for winding a layer of fiber on the periphery of a batten bonded into a square shape, and a plastic coating module is used for coating and extruding a layer of plastic on the periphery of the batten after winding. The method has the defects of insufficient wettability, infirm bonding and the like.
The building batten is prepared by coating the adhesive resin on the surface of the batten, reinforcing and winding the continuous fiber thermoplastic prepreg in the middle and coating the anti-aging thermoplastic protective resin on the outer layer by using a thermal compounding process, and the building batten not only has high material strength, but also has excellent waterproof, weather-resistant and moisture-resistant properties.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a continuous fiber thermoplastic prepreg reinforced building batten and a preparation method and equipment thereof.
The technical scheme adopted by the invention is as follows:
the utility model provides a continuous fibers thermoplasticity preimpregnation material reinforcing building flitch which characterized in that, the flitch is middle sandwich layer, the surface respectively is provided with 3 layers of symmetry and the same structure about the flitch, is from outer to interior in proper order:
a protective layer comprising a thermoplastic protective resin;
a reinforcement layer comprising a continuous fiber reinforced thermoplastic prepreg;
an adhesive layer comprising a thermoplastic adhesive resin.
Furthermore, the protective layer is also added with an auxiliary agent, wherein the auxiliary agent comprises a toughening agent, an antioxidant, an anti-violet agent and black master batch.
Preferably, the mass parts of the toughening agent and the protective layer are 75-85, 0-15, 0.5-1.0 and 0-15 respectively.
Further, the thermoplastic protective resin material includes polypropylene resin (PP), Polyethylene (PE), High Density Polyethylene (HDPE), Polyamide (PA), polyethylene terephthalate (PET), Polycarbonate (PC), Polyphenylene Sulfide (PPs), Polyetherimide (PEI), polyether ether ketone (PEEK).
Further, the continuous fiber reinforced thermoplastic prepreg comprises a plurality of layers of continuous fiber thermoplastic unidirectional tapes, the layers of the continuous fiber thermoplastic unidirectional tapes are subjected to thermal compounding to form a composite tape, and the continuous fibers in the continuous fiber reinforced thermoplastic prepreg are one of glass fibers, carbon fibers, aramid fibers and basalt fibers or a combination of the glass fibers, the carbon fibers, the aramid fibers and the basalt fibers.
Preferably, the thickness of the continuous fiber reinforced thermoplastic prepreg is 0.15-0.9mm, the glass fiber content is 40% -70% of the continuous fiber reinforced thermoplastic prepreg, and the single-layer continuous fiber thermoplastic unidirectional tapes are orthogonally (crisscross) layered at 0/90 degrees or are layered at an angle of 0/45 degrees/90 degrees.
Furthermore, the thermoplastic adhesive resin is one of ethylene-vinyl acetate copolymer, ethylene acrylic acid copolymer, maleic anhydride modified thermoplastic protective resin or the combination of the ethylene-vinyl acetate copolymer, the ethylene acrylic acid copolymer and the maleic anhydride modified thermoplastic protective resin.
The invention also discloses a preparation method of the continuous fiber thermoplastic prepreg reinforced building batten, which mainly comprises the following steps:
s1, coating of adhesive resin: the conveying device enables the batten to pass through a die containing adhesive resin, and the thermoplastic adhesive resin in the die is continuously input through an extruder, so that the surface of the batten is coated with an adhesive layer;
s2, continuous fiber thermoplastic prepreg coating: heating and melting the continuous fiber reinforced thermoplastic prepreg and the surface layer of the adhesive resin by a pressing or hot air heating device, and then coating, winding and bonding;
s3 thermoplastic protective resin coating: and (3) the conveying device draws the battens to pass through a die containing thermoplastic protective resin, the thermoplastic protective resin in the die is continuously input through an extruder, so that the thermoplastic protective resin is coated on the surfaces of the battens, and the continuous fiber thermoplastic prepreg reinforced building battens are obtained by cooling, shaping and cutting.
Preferably, the thickness of the adhesive layer is 0.5 to 1mm, and the thickness of the thermoplastic protective resin is 0.2 to 1 mm.
The invention discloses equipment for preparing continuous fiber thermoplastic prepreg reinforced building battens, which mainly comprises:
the conveying device comprises a pair of rollers, the rotating directions of the two rollers are the same, and the conveying device is used for drawing the wood to move forwards;
the extruder continuously inputs thermoplastic bonding resin into the bonding layer coating mould, the bonding layer coating mould is hollow and can be penetrated by wood to be used for coating the thermoplastic bonding resin on the wood;
the unwinding device comprises a pair of unwinding rollers and is used for unwinding the continuous fiber reinforced thermoplastic prepreg;
the hot pressing device comprises a pair of heated pressing rollers for pressing the unreeled continuous fiber reinforced thermoplastic prepreg and the bonding layer on the surface of the batten;
the extruder continuously inputs thermoplastic protective resin into the bonding layer coating die, the protective layer coating die is also hollow, wood can penetrate through the protective layer coating die, and the thermoplastic protective resin is coated on the wood;
the cooling device comprises a pair of pressing rollers for pressing, cooling, shaping and compounding the battens;
the conveying device, the bonding layer coating die, the unreeling device, the hot-pressing device, the protective layer coating die and the cooling device are sequentially arranged from left to right.
The invention also provides a hot air knife device, which can be used for preparing the continuous fiber thermoplastic prepreg reinforced building battens, and is different from the heating press-fit roller device in that the device is a hot air knife for heating the continuous fiber thermoplastic prepreg reinforced with the adhesive resin surface layer to a molten state, and meanwhile, under the traction action of a roller, the thermoplastic protective resin is coated through a protective layer coating die, and the cooling device is directly pressed and shaped.
Compared with the prior art, the invention has the following advantages and technical effects:
according to the continuous fiber thermoplastic prepreg reinforced building batten and the preparation method and equipment thereof, the surface of the batten is coated with the thermoplastic adhesive resin to improve the bonding force between the resin and the batten, the delamination between the resin and the batten in a used layer is prevented, the middle layer is coated with the continuous fiber thermoplastic prepreg to enhance the coating and winding so as to improve the structural strength and the bending strength of the material, and the outer layer is coated with the aging-resistant thermoplastic protective resin.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the prior art will be briefly described below.
FIG. 1 is a schematic view of a continuous fiber thermoplastic prepreg reinforced building batten structure;
FIG. 2 is a flow chart of the process for preparing continuous fiber thermoplastic prepreg reinforced building battens;
FIG. 3 is a schematic diagram of an apparatus according to an embodiment;
FIG. 4 is a schematic diagram of an apparatus according to another embodiment;
the numbers in the figure are: 1-conveying device, 2-bonding layer coating die, 3-unwinding device, 4-hot pressing device, 4' -hot air heating device, 5-protective layer coating die and 6-cooling device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following 1 part by mass was 1 g.
Example 1:
the compounding ratio of the continuous fiber thermoplastic prepreg reinforced building batten is shown in table 1.
TABLE 1
The continuous fiber thermoplastic prepreg reinforced building battens of example 1, comprising the steps of:
s1, coating adhesive resin: passing the wood beam through a die containing molten adhesive resin by a conveying device to coat the surface with a 0.3mm thermoplastic adhesive resin layer;
s2, continuous fiber thermoplastic prepreg coating: rapidly pressing and bonding the prepreg inner layer and the surface of the bonding thermoplastic resin surface layer through a pressing device;
s3, thermoplastic resin coating: and (3) passing the battens through a die containing molten thermoplastic protective resin by a conveying device, coating a 0.2mm thermoplastic resin protective layer on the surface of the battens, cooling, shaping and cutting to obtain the continuous fiber thermoplastic prepreg reinforced building battens.
Example 2:
the compounding ratio of the continuous fiber thermoplastic prepreg reinforced building batten is shown in table 2.
TABLE 2
The continuous fiber thermoplastic prepreg reinforced building battens of example 2, comprising the steps of:
s1, coating adhesive resin: passing the wood beam through a die containing molten adhesive resin by a conveying device to coat the surface with a 1mm thermoplastic adhesive resin layer;
s2, continuous fiber thermoplastic prepreg coating: rapidly pressing and bonding the prepreg inner layer and the surface of the bonding thermoplastic resin surface layer through a pressing device;
s3, thermoplastic resin coating: and (3) passing the battens through a thermoplastic protective resin mould containing molten resin by a conveying device, coating a thermoplastic resin protective layer with the thickness of 1mm on the surface, cooling, shaping and cutting to obtain the continuous fiber thermoplastic prepreg reinforced building battens.
Example 3:
the compounding ratio of the continuous fiber thermoplastic prepreg reinforced building batten is shown in table 3.
TABLE 3
The continuous fiber thermoplastic prepreg reinforced building battens of example 3, comprising the steps of:
s1, coating adhesive resin: passing the wood beam through a die containing molten adhesive resin by a conveying device to coat the surface with a 0.3mm thermoplastic adhesive resin layer;
s2, continuous fiber thermoplastic prepreg coating: heating and melting the inner layer of the prepreg and the surface layer of the bonding thermoplastic resin by a hot air heating device, and then coating, winding and bonding;
s3, thermoplastic resin coating: and (3) passing the battens through a die containing molten thermoplastic protective resin by a conveying device, coating a 0.5mm thermoplastic resin protective layer on the surface of the battens, cooling, shaping and cutting to obtain the continuous fiber thermoplastic prepreg reinforced building battens.
And (3) comparing experimental data:
TABLE 4
From the results, the continuous fiber thermoplastic prepreg reinforced building batten obtained by the invention not only has excellent strength, but also has good waterproof and moisture-proof performances.
Claims (10)
1. The utility model provides a continuous fibers thermoplasticity preimpregnation material reinforcing building flitch which characterized in that, the flitch is middle sandwich layer, the surface respectively is provided with 3 layers of symmetry and the same structure about the flitch, is from outer to interior in proper order:
a protective layer comprising a thermoplastic protective resin;
a reinforcement layer comprising a continuous fiber reinforced thermoplastic prepreg;
an adhesive layer comprising a thermoplastic adhesive resin.
2. The continuous fiber thermoplastic prepreg reinforced building plank of claim 1, wherein the thermoplastic protective resin material comprises polypropylene, polyethylene, high density polyethylene, polyamide, polyethylene terephthalate, polycarbonate, polyphenylene sulfide, polyetherimide, polyetheretherketone resin.
3. The continuous fiber thermoplastic prepreg reinforced building plank of claim 1, wherein the protective layer further comprises an auxiliary agent comprising a toughening agent, an antioxidant, a violet resistant agent, a black masterbatch.
4. The continuous fiber thermoplastic prepreg reinforced building batten according to claim 1, wherein the continuous fiber reinforced thermoplastic prepreg comprises a plurality of layers of continuous fiber thermoplastic unidirectional tapes, the layers of the continuous fiber thermoplastic unidirectional tapes are spread and thermally compounded to form a composite tape, and the continuous fibers in the continuous fiber reinforced thermoplastic prepreg are one of glass fibers, carbon fibers, aramid fibers, basalt fibers or a combination of the foregoing continuous fibers.
5. The continuous fiber thermoplastic prepreg reinforced building batten according to claim 3, wherein the continuous fiber thermoplastic prepreg has a thickness of 0.15-0.9mm, the glass fiber content is 40% -70% of the continuous fiber thermoplastic prepreg, and the continuous fiber thermoplastic unidirectional tapes are orthogonally laid at 0/90 ° or laid at an angle of 0/45 °/90 ° with respect to each other.
6. The continuous fiber thermoplastic prepreg reinforced building plank of claim 1, wherein the thermoplastic bonding resin is one or more of ethylene vinyl acetate copolymer, ethylene acrylic acid copolymer, maleic anhydride modified thermoplastic protective resin.
7. The method for preparing the continuous fiber thermoplastic prepreg reinforced building battens according to any one of claims 1 to 6, comprising the following steps:
coating of adhesive resin: passing the wood beam through a die containing molten adhesive resin by a conveying device, wherein the thermoplastic adhesive resin in the die is continuously fed through an extruder, so that the surface of the wood beam is coated with an adhesive layer;
continuous fiber thermoplastic prepreg coating: heating and melting the continuous fiber reinforced thermoplastic prepreg and the surface layer of the adhesive resin by a pressing or hot air heating device, and then coating, winding and bonding;
thermoplastic protective resin coating: and (3) the conveying device draws the battens to pass through a die containing thermoplastic protective resin, the thermoplastic protective resin in the die is continuously input through an extruder, so that the thermoplastic protective resin is coated on the surfaces of the battens, and the continuous fiber thermoplastic prepreg reinforced building battens are obtained by cooling, shaping and cutting.
8. The method for preparing continuous fiber thermoplastic prepreg reinforced building battens according to claim 6, wherein the thickness of the bonding layer is 0.5-1mm, and the thickness of the protective layer is 0.2-1 mm.
9. The apparatus for preparing continuous fiber thermoplastic prepreg reinforced building battens according to any one of claims 1 to 6, comprising:
the conveying device (1) comprises a pair of rollers, the rotating directions of the two rollers are the same, and the conveying device is used for drawing the wood to move forwards;
the bonding layer covers the mould (2), contain the thermoplastic bonding resin, the said bonding layer covers the mould (2) and is hollow, the wood can pass through, is used for coating the thermoplastic bonding resin on the wood;
the unwinding device (3) comprises a pair of unwinding rollers and is used for unwinding the continuous fiber reinforced thermoplastic prepreg;
the hot pressing device (4) comprises a pair of heated pressing rollers and is used for pressing the unreeled continuous fiber reinforced thermoplastic prepreg and the bonding layer on the surface of the batten;
the protective layer coating die (5) contains thermoplastic protective resin, the protective layer coating die (5) is also hollow, wood can penetrate through the protective layer coating die, and the protective layer coating die is used for coating the thermoplastic protective resin on the wood;
the cooling device (6) comprises a pair of pressing rollers for pressing, cooling, shaping and compounding the battens;
the conveying device (1), the bonding layer coating die (2), the unreeling device (3), the hot pressing device (4), the protective layer coating die (5) and the cooling device (6) are sequentially arranged from left to right.
10. The apparatus for manufacturing continuous fiber thermoplastic prepreg reinforced building battens according to claim 9, wherein the hot press bonding device (4) is replaceable with a hot air heating device (4 '), the hot air heating device (4') comprising a pair of hot air knives for heating the continuous fiber reinforced thermoplastic prepreg and the adhesive resin surface layer to a molten state.
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| CN202111167813.6A CN113910712A (en) | 2021-09-29 | 2021-09-29 | Continuous fiber thermoplastic prepreg reinforced building batten and preparation method and equipment thereof |
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| CN201866422U (en) * | 2010-11-02 | 2011-06-15 | 周永清 | High-pressure-resistant glass fiber reinforced plastic reinforced steel-plastic pipe |
| CN107531926A (en) * | 2015-04-22 | 2018-01-02 | 伊士曼化工公司 | The Strip composite material based on polyester for timber enhancing |
| CN110370685A (en) * | 2019-08-23 | 2019-10-25 | 山东华通玻璃钢有限公司 | A kind of composite material building flitch |
| CN211194232U (en) * | 2019-09-27 | 2020-08-07 | 四川中天融建科技有限公司 | Compound production line of regeneration carbon fiber flitch |
| CN211441245U (en) * | 2019-08-23 | 2020-09-08 | 山东华通玻璃钢有限公司 | Composite material building batten |
| CN212979159U (en) * | 2020-05-30 | 2021-04-16 | 四川中天融建科技有限公司 | Novel flitch composite production line |
| CN213055250U (en) * | 2020-06-17 | 2021-04-27 | 四川珍木绿建新材料科技有限公司 | Equipment for extruding composite high polymer material by using waste wood |
-
2021
- 2021-09-29 CN CN202111167813.6A patent/CN113910712A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201866422U (en) * | 2010-11-02 | 2011-06-15 | 周永清 | High-pressure-resistant glass fiber reinforced plastic reinforced steel-plastic pipe |
| CN107531926A (en) * | 2015-04-22 | 2018-01-02 | 伊士曼化工公司 | The Strip composite material based on polyester for timber enhancing |
| CN110370685A (en) * | 2019-08-23 | 2019-10-25 | 山东华通玻璃钢有限公司 | A kind of composite material building flitch |
| CN211441245U (en) * | 2019-08-23 | 2020-09-08 | 山东华通玻璃钢有限公司 | Composite material building batten |
| CN211194232U (en) * | 2019-09-27 | 2020-08-07 | 四川中天融建科技有限公司 | Compound production line of regeneration carbon fiber flitch |
| CN212979159U (en) * | 2020-05-30 | 2021-04-16 | 四川中天融建科技有限公司 | Novel flitch composite production line |
| CN213055250U (en) * | 2020-06-17 | 2021-04-27 | 四川珍木绿建新材料科技有限公司 | Equipment for extruding composite high polymer material by using waste wood |
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