CN116714066A - Production method of bamboo-based composite material pipeline - Google Patents
Production method of bamboo-based composite material pipeline Download PDFInfo
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- CN116714066A CN116714066A CN202310838220.0A CN202310838220A CN116714066A CN 116714066 A CN116714066 A CN 116714066A CN 202310838220 A CN202310838220 A CN 202310838220A CN 116714066 A CN116714066 A CN 116714066A
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 156
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 156
- 241001330002 Bambuseae Species 0.000 title claims abstract description 156
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 156
- 239000011425 bamboo Substances 0.000 title claims abstract description 156
- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 244000302661 Phyllostachys pubescens Species 0.000 claims abstract description 18
- 235000003570 Phyllostachys pubescens Nutrition 0.000 claims abstract description 18
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 12
- 239000011780 sodium chloride Substances 0.000 claims abstract description 12
- 239000002023 wood Substances 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 38
- 239000000463 material Substances 0.000 claims description 31
- 230000001954 sterilising effect Effects 0.000 claims description 25
- 238000005253 cladding Methods 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 15
- 230000001070 adhesive effect Effects 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 15
- 239000004745 nonwoven fabric Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000013329 compounding Methods 0.000 claims description 10
- 239000003755 preservative agent Substances 0.000 claims description 10
- 230000002335 preservative effect Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims description 10
- 238000009941 weaving Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 8
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 230000002421 anti-septic effect Effects 0.000 claims description 5
- 238000005536 corrosion prevention Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004902 Softening Agent Substances 0.000 claims description 2
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 239000005007 epoxy-phenolic resin Substances 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920005749 polyurethane resin Polymers 0.000 claims description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000004804 winding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Laminated Bodies (AREA)
Abstract
The invention discloses a production method of a bamboo-based composite material pipeline, which relates to the field of bamboo-based composite material pipelines and comprises the following steps: selecting bamboo wood: selecting raw moso bamboo for 4-8 years, cutting off the head and tail ends of the raw moso bamboo by 5-15cm respectively, and cutting off the rest raw moso bamboo into bamboo segments of 90-320 cm; bamboo processing: the method has the advantages that the bamboo segments are processed into the bamboo strips with the width of 1.5-2.5cm and the thickness of less than or equal to 0.8cm, the obtained bamboo strips are placed into saline water to be soaked for 24 hours, and then the bamboo strips are fished out of the saline water to be dried.
Description
Technical Field
The invention relates to the field of bamboo-based composite material pipelines, in particular to a production method of a bamboo-based composite material pipeline.
Background
The bamboo winding composite pressure pipeline is a biological base pressure pipeline which is manufactured by taking bamboo as a base material, taking resin as an adhesive, fully utilizing the characteristic of high axial tensile strength of bamboo, and adopting an arc winding process technology without stress defects. The composite material has the characteristics of high cost performance, low carbon, environmental protection, strong anti-seismic and anti-sedimentation capacity, excellent heat preservation performance and the like; the bamboo winding composite pressure pipeline has the advantages of high compressive strength, insulation, corrosion resistance, good water flow performance, light weight, convenient installation, long service life and the like.
The traditional production method of the bamboo-based composite material pipeline has some problems in the practical practice process, such as the problems of production efficiency and processing difficulty, and the strength of the processed bamboo-based composite material pipeline can be further improved.
Disclosure of Invention
The invention mainly aims to provide a production method of a bamboo-based composite material pipeline, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a production method of a bamboo-based composite material pipeline comprises the following steps:
s1, bamboo wood selection: selecting raw moso bamboo for 4-8 years, cutting off the head and tail ends of the raw moso bamboo by 5-15cm respectively, and cutting off the rest raw moso bamboo into bamboo segments of 90-320 cm;
s2, bamboo processing: processing bamboo segments into bamboo strips with the width of 1.5-2.5cm and the thickness of less than or equal to 0.8cm, soaking the obtained bamboo strips in saline water for 24 hours, fishing out the bamboo strips from the saline water, airing, gluing and assembling the bamboo strips after the bamboo strips are dried to form a bamboo square, pressing and infusing the bamboo square, drying until no obvious water mark is on the surface, soaking the bamboo square in warm water with the temperature of 40-70 ℃ for at least 24 hours to obtain a softened bamboo square, slicing the softened bamboo square according to the processing requirement, slicing to obtain thin bamboo with the thickness of less than or equal to 0.05cm, and drying the thin bamboo in a veneer dryer until the water content is less than 8%;
s3, manufacturing an outer cladding: coating urea-formaldehyde glue on the thin bamboo with the water content of less than 8%, pasting non-woven fabrics containing bamboo fibers, and rolling the thin bamboo coated with the non-woven fabrics into an outer wrapping material, or vertically and transversely compounding the sliced thin bamboo to directly prepare a bamboo veneer composite material roll into the outer wrapping material;
s4, sterilization and corrosion prevention: rolling the prepared outer wrapping material, placing the rolled outer wrapping material into sterilizing equipment for high-temperature sterilization, wherein the sterilizing temperature is set to be 90-130 ℃, the sterilizing time is set to be 20-30 minutes, and then carrying out antiseptic treatment;
s5, manufacturing a lining: introducing a molten resin into the mold to form an inner liner;
s6, weaving a net-shaped reinforcing layer: selecting the outer cladding material prepared in the step S3, cutting the outer cladding material into a plurality of sections of bamboo fiber bands with the same length, and then sequentially and alternately weaving the sections of bamboo fiber bands into a net shape, thereby forming a net-shaped reinforcing layer;
s7, inner liner treatment: coating a layer of waterproof adhesive on the lining layer prepared in the step S5, wherein the thickness of resin is 0.5-0.8cm, and coating a waterproof agent and a preservative on the inner wall of the lining layer;
s8, compounding pipelines: then inserting the inner liner layer into a tubular space formed by the inner wall of the reinforcing layer, applying pressure to enable the inner liner layer to be adhered with the reinforcing layer by utilizing a special-shaped hot press, coating a resin adhesive on the outer wall of the reinforcing layer after adhesion, attaching the dipped thin bamboo adhered with non-woven fabrics on the outer wall of the reinforcing layer by layer, and staggering interfaces between two adjacent layers until the thickness meets the requirement;
s9, pipeline processing: and (3) feeding the preliminarily formed composite pipe into drying equipment, heating to 80-140 ℃, performing curing treatment, and finally spraying a waterproof agent and a preservative on the outermost layer of the outer cladding.
Preferably, in the step S2, the liquid used in the pressurized impregnation of the bamboo part is water or an aqueous solution containing a penetrating agent or a softening agent.
Preferably, in the step S6, the mesh diameter of the mesh-shaped reinforcing layer is 0.5-1cm.
Preferably, in step S7, the waterproof adhesive coated outside the inner lining layer is one of urea formaldehyde resin, unsaturated polyester resin, epoxy resin, phenolic resin or polyurethane resin.
Compared with the prior art, the invention has the following beneficial effects:
the invention improves the processing efficiency, reduces the processing difficulty, and simultaneously can ensure that the reticular reinforcing layer is more tightly attached to the inner liner layer because the waterproof adhesive on the inner liner layer can be effectively integrated into the aperture on the reticular reinforcing layer, and meanwhile, compared with the prior art, the structure of the reticular reinforcing layer has higher strength, and can effectively reduce the influence of geological environment on the pipe, thereby ensuring the normal use and the service life of the pipe.
Drawings
FIG. 1 is a process flow diagram of a method for producing a bamboo-based composite pipe according to the present invention.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1:
the production method of the bamboo-based composite material pipeline shown in fig. 1 comprises the following steps:
a production method of a bamboo-based composite material pipeline comprises the following steps:
s1, bamboo wood selection: selecting raw moso bamboos for 4 years, cutting off the head and tail ends of the raw moso bamboos by 5cm respectively, and cutting off the rest raw moso bamboos into 90 bamboo segments;
s2, bamboo processing: processing bamboo segments into bamboo strips with the width of 1.5cm and the thickness of less than or equal to 0.8cm, soaking the obtained bamboo strips in saline water for 24 hours, fishing out the bamboo strips from the saline water, airing, gluing and assembling the dried bamboo strips to form a bamboo square, pressing and impregnating the bamboo square, drying until no obvious water mark is formed on the surface, immersing the bamboo square in warm water at 40 ℃ again for at least 24 hours to obtain a softened bamboo square, planing the softened bamboo square according to the processing requirement, planing the bamboo square to obtain thin bamboo with the thickness of less than or equal to 0.05cm, and drying the thin bamboo in a veneer dryer until the water content is less than 8%;
s3, manufacturing an outer cladding: coating urea-formaldehyde glue on the thin bamboo with the water content of less than 8%, pasting non-woven fabrics containing bamboo fibers, and rolling the thin bamboo coated with the non-woven fabrics into an outer wrapping material, or vertically and transversely compounding the sliced thin bamboo to directly prepare a bamboo veneer composite material roll into the outer wrapping material;
s4, sterilization and corrosion prevention: rolling the prepared outer wrapping material, then placing the rolled outer wrapping material into sterilizing equipment for high-temperature sterilization, wherein the sterilizing temperature is set to 90 ℃, the sterilizing time is set to 20 minutes, and then carrying out antiseptic treatment;
s5, manufacturing a lining: introducing a molten resin into the mold to form an inner liner;
s6, weaving a net-shaped reinforcing layer: selecting the outer cladding material prepared in the step S3, cutting the outer cladding material into a plurality of sections of bamboo fiber bands with the same length, and then sequentially and alternately weaving the sections of bamboo fiber bands into a net shape, thereby forming a net-shaped reinforcing layer;
s7, inner liner treatment: coating a layer of waterproof adhesive on the lining layer prepared in the step S5, wherein the thickness of resin is 0.5cm, and coating a waterproof agent and a preservative on the inner wall of the lining layer;
s8, compounding pipelines: then inserting the inner liner layer into a tubular space formed by the inner wall of the reinforcing layer, applying pressure to bond the inner liner layer and the reinforcing layer by using a special-shaped hot press, coating a resin adhesive on the outer wall of the reinforcing layer after bonding, and sticking the dipped thin bamboo coated with non-woven fabrics on the outer wall of the reinforcing layer by layer, wherein the interfaces between two adjacent layers are staggered until the thickness meets the requirement;
s9, pipeline processing: and (3) feeding the preliminarily formed composite pipe into drying equipment, heating to 80 ℃, performing curing treatment, and finally spraying a waterproof agent and a preservative on the outermost layer of the outer cladding.
Example 2:
the production method of the bamboo-based composite material pipeline shown in fig. 1 comprises the following steps:
a production method of a bamboo-based composite material pipeline comprises the following steps:
s1, bamboo wood selection: selecting raw moso bamboo for 6 years, cutting off 10cm from the head end and the tail end of the raw moso bamboo respectively, and cutting off the rest raw moso bamboo into bamboo sections of 200 cm;
s2, bamboo processing: processing bamboo segments into bamboo strips with the width of 2cm and the thickness of less than or equal to 0.8cm, soaking the obtained bamboo strips in saline water for 24 hours, fishing out the bamboo strips from the saline water, airing, gluing and assembling the dried bamboo strips to form a bamboo square, pressing and impregnating the bamboo square, drying until no obvious water mark is formed on the surface, immersing the bamboo square in warm water at 55 ℃ again for at least 24 hours to obtain a softened bamboo square, planing the softened bamboo square according to the processing requirement, planing the bamboo square to obtain thin bamboo with the thickness of less than or equal to 0.05cm, and drying the thin bamboo in a veneer dryer until the water content is less than 8%;
s3, manufacturing an outer cladding: coating urea-formaldehyde glue on the thin bamboo with the water content of less than 8%, pasting non-woven fabrics containing bamboo fibers, and rolling the thin bamboo coated with the non-woven fabrics into an outer wrapping material, or vertically and transversely compounding the sliced thin bamboo to directly prepare a bamboo veneer composite material roll into the outer wrapping material;
s4, sterilization and corrosion prevention: rolling the prepared outer wrapping material, then placing the rolled outer wrapping material into sterilizing equipment for high-temperature sterilization, wherein the sterilizing temperature is set to 110 ℃, the sterilizing time is set to 25 minutes, and then carrying out antiseptic treatment;
s5, manufacturing a lining: introducing a molten resin into the mold to form an inner liner;
s6, weaving a net-shaped reinforcing layer: selecting the outer cladding material prepared in the step S3, cutting the outer cladding material into a plurality of sections of bamboo fiber bands with the same length, and then sequentially and alternately weaving the sections of bamboo fiber bands into a net shape, thereby forming a net-shaped reinforcing layer;
s7, inner liner treatment: coating a layer of waterproof adhesive on the lining layer prepared in the step S5, wherein the thickness of resin is 0.65cm, and coating a waterproof agent and a preservative on the inner wall of the lining layer;
s8, compounding pipelines: then inserting the inner liner layer into a tubular space formed by the inner wall of the reinforcing layer, applying pressure to bond the inner liner layer and the reinforcing layer by using a special-shaped hot press, coating a resin adhesive on the outer wall of the reinforcing layer after bonding, and sticking the dipped thin bamboo coated with non-woven fabrics on the outer wall of the reinforcing layer by layer, wherein the interfaces between two adjacent layers are staggered until the thickness meets the requirement;
s9, pipeline processing: and (3) conveying the preliminarily formed composite pipe into drying equipment, heating to 120 ℃, performing curing treatment, and finally spraying a waterproof agent and a preservative on the outermost layer of the outer cladding layer.
Example 3:
the production method of the bamboo-based composite material pipeline shown in fig. 1 comprises the following steps:
a production method of a bamboo-based composite material pipeline comprises the following steps:
s1, bamboo wood selection: selecting 8 years of raw moso bamboo, cutting off 15cm from the head end and the tail end of the raw moso bamboo respectively, and cutting off the rest raw moso bamboo into bamboo segments of 320 cm;
s2, bamboo processing: processing bamboo segments into bamboo strips with the width of 2.5cm and the thickness of less than or equal to 0.8cm, soaking the obtained bamboo strips in saline water for 24 hours, fishing out the bamboo strips from the saline water, airing, gluing and assembling the dried bamboo strips to form a bamboo square, drying the bamboo square until no obvious water mark is formed on the surface after pressurizing and impregnating the bamboo square, soaking the bamboo square in warm water at 70 ℃ for at least 24 hours again to obtain a softened bamboo square, planing the softened bamboo square according to the processing requirement, planing the bamboo square to obtain thin bamboo with the thickness of less than or equal to 0.05cm, and drying the thin bamboo in a veneer dryer until the water content is less than 8%;
s3, manufacturing an outer cladding: coating urea-formaldehyde glue on the thin bamboo with the water content of less than 8%, pasting non-woven fabrics containing bamboo fibers, and rolling the thin bamboo coated with the non-woven fabrics into an outer wrapping material, or vertically and transversely compounding the sliced thin bamboo to directly prepare a bamboo veneer composite material roll into the outer wrapping material;
s4, sterilization and corrosion prevention: rolling the prepared outer wrapping material, then placing the rolled outer wrapping material into sterilizing equipment for high-temperature sterilization, wherein the sterilizing temperature is set to 130 ℃, the sterilizing time is set to 30 minutes, and then carrying out antiseptic treatment;
s5, manufacturing a lining: introducing a molten resin into the mold to form an inner liner;
s6, weaving a net-shaped reinforcing layer: selecting the outer cladding material prepared in the step S3, cutting the outer cladding material into a plurality of sections of bamboo fiber bands with the same length, and then sequentially and alternately weaving the sections of bamboo fiber bands into a net shape, thereby forming a net-shaped reinforcing layer;
s7, inner liner treatment: coating a layer of waterproof adhesive on the lining layer prepared in the step S5, wherein the thickness of resin is 0.8cm, and coating a waterproof agent and a preservative on the inner wall of the lining layer;
s8, compounding pipelines: then inserting the inner liner layer into a tubular space formed by the inner wall of the reinforcing layer, applying pressure to bond the inner liner layer and the reinforcing layer by using a special-shaped hot press, coating a resin adhesive on the outer wall of the reinforcing layer after bonding, and sticking the dipped thin bamboo coated with non-woven fabrics on the outer wall of the reinforcing layer by layer, wherein the interfaces between two adjacent layers are staggered until the thickness meets the requirement;
s9, pipeline processing: and (3) feeding the preliminarily formed composite pipe into drying equipment, heating to 140 ℃, performing curing treatment, and finally spraying a waterproof agent and a preservative on the outermost layer of the outer cladding.
According to the invention, the processing efficiency is improved, the processing difficulty is reduced, meanwhile, as the waterproof adhesive on the inner liner layer can be effectively integrated into the aperture on the mesh-shaped reinforcing layer, the mesh-shaped reinforcing layer can be more tightly attached to the inner liner layer, and meanwhile, compared with the prior art, the strength of the structure of the mesh-shaped reinforcing layer is higher, the influence of geological environment on the pipe can be effectively reduced, so that the normal use and the service life of the pipe are ensured, and the quality of the bamboo-based composite material pipe obtained in the embodiment 2 is optimal.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above description will be apparent to those of skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (4)
1. The production method of the bamboo-based composite material pipeline is characterized by comprising the following steps of:
s1, bamboo wood selection: selecting raw moso bamboo for 4-8 years, cutting off the head and tail ends of the raw moso bamboo by 5-15cm respectively, and cutting off the rest raw moso bamboo into bamboo segments of 90-320 cm;
s2, bamboo processing: processing bamboo segments into bamboo strips with the width of 1.5-2.5cm and the thickness of less than or equal to 0.8cm, soaking the obtained bamboo strips in saline water for 24 hours, fishing out the bamboo strips from the saline water, airing, gluing and assembling the bamboo strips after the bamboo strips are dried to form a bamboo square, pressing and infusing the bamboo square, drying until no obvious water mark is on the surface, soaking the bamboo square in warm water with the temperature of 40-70 ℃ for at least 24 hours to obtain a softened bamboo square, slicing the softened bamboo square according to the processing requirement, slicing to obtain thin bamboo with the thickness of less than or equal to 0.05cm, and drying the thin bamboo in a veneer dryer until the water content is less than 8%;
s3, manufacturing an outer cladding: coating urea-formaldehyde glue on the thin bamboo with the water content of less than 8%, pasting non-woven fabrics containing bamboo fibers, and rolling the thin bamboo coated with the non-woven fabrics into an outer wrapping material, or vertically and transversely compounding the sliced thin bamboo to directly prepare a bamboo veneer composite material roll into the outer wrapping material;
s4, sterilization and corrosion prevention: rolling the prepared outer wrapping material, placing the rolled outer wrapping material into sterilizing equipment for high-temperature sterilization, wherein the sterilizing temperature is set to be 90-130 ℃, the sterilizing time is set to be 20-30 minutes, and then carrying out antiseptic treatment;
s5, manufacturing a lining: introducing a molten resin into the mold to form an inner liner;
s6, weaving a net-shaped reinforcing layer: selecting the outer cladding material prepared in the step S3, cutting the outer cladding material into a plurality of sections of bamboo fiber bands with the same length, and then sequentially and alternately weaving the sections of bamboo fiber bands into a net shape, thereby forming a net-shaped reinforcing layer;
s7, inner liner treatment: coating a layer of waterproof adhesive on the lining layer prepared in the step S5, wherein the thickness of resin is 0.5-0.8cm, and coating a waterproof agent and a preservative on the inner wall of the lining layer;
s8, compounding pipelines: then inserting the inner liner layer into a tubular space formed by the inner wall of the reinforcing layer, applying pressure to enable the inner liner layer to be adhered with the reinforcing layer by utilizing a special-shaped hot press, coating a resin adhesive on the outer wall of the reinforcing layer after adhesion, attaching the dipped thin bamboo adhered with non-woven fabrics on the outer wall of the reinforcing layer by layer, and staggering interfaces between two adjacent layers until the thickness meets the requirement;
s9, pipeline processing: and (3) feeding the preliminarily formed composite pipe into drying equipment, heating to 80-140 ℃, performing curing treatment, and finally spraying a waterproof agent and a preservative on the outermost layer of the outer cladding.
2. The method for producing a bamboo-based composite pipe according to claim 1, wherein: in the step S2, the liquid used in the pressurized impregnation of the bamboo part is water or an aqueous solution containing a penetrating agent or a softening agent.
3. The method for producing a bamboo-based composite pipe according to claim 1, wherein: in the step S6, the mesh diameter of the mesh-shaped reinforcing layer is 0.5-1cm.
4. The method for producing a bamboo-based composite pipe according to claim 1, wherein: in the step S7, the waterproof adhesive coated outside the lining layer is one of urea formaldehyde resin, unsaturated polyester resin, epoxy resin, phenolic resin or polyurethane resin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310838220.0A CN116714066A (en) | 2023-07-10 | 2023-07-10 | Production method of bamboo-based composite material pipeline |
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| CN202310838220.0A CN116714066A (en) | 2023-07-10 | 2023-07-10 | Production method of bamboo-based composite material pipeline |
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