CN108570243A - A kind of fiberglass regrown material multiple tube and preparation method thereof - Google Patents
A kind of fiberglass regrown material multiple tube and preparation method thereof Download PDFInfo
- Publication number
- CN108570243A CN108570243A CN201810319643.0A CN201810319643A CN108570243A CN 108570243 A CN108570243 A CN 108570243A CN 201810319643 A CN201810319643 A CN 201810319643A CN 108570243 A CN108570243 A CN 108570243A
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- Prior art keywords
- fiberglass
- multiple tube
- weight
- resin
- additive amount
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 76
- 239000000463 material Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 44
- 229920005989 resin Polymers 0.000 claims abstract description 44
- 239000002699 waste material Substances 0.000 claims abstract description 31
- 239000000654 additive Substances 0.000 claims abstract description 29
- 230000000996 additive effect Effects 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 20
- 239000004576 sand Substances 0.000 claims abstract description 14
- 239000006004 Quartz sand Substances 0.000 claims abstract description 12
- 239000003086 colorant Substances 0.000 claims abstract description 10
- 230000008450 motivation Effects 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 14
- 239000011521 glass Substances 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- SAXCKUIOAKKRAS-UHFFFAOYSA-N cobalt;hydrate Chemical compound O.[Co] SAXCKUIOAKKRAS-UHFFFAOYSA-N 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 claims 2
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 description 5
- 238000005253 cladding Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical group CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Revetment (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of fiberglass regrown material multiple tubes and preparation method thereof, include the raw material of following parts by weight：Resin 10 20, rubble 23 30, quartz sand or river sand 25 30, fiberglass granular wastes and/or fiberglass powder scrap 10 40, additive amount is 1 3% curing agent of weight resin, and additive amount is 1 3% accelerating agent of weight resin, and additive amount is 2 8% colorant of weight resin.The present invention provides a kind of using fiberglass granular wastes or fiberglass powder scrap as one of the raw material for preparing multiple tube, and economy, has excellent performance, is convenient for production environmental protection.
Description
Technical field
The invention belongs to concrete duct Material Fields, and in particular to a kind of fiberglass regrown material multiple tube and its preparation
Method.
Background technology
It is reduced increasingly in natural resources and energy today relatively in short supply, the recycling of resource has special meaning
Justice.In decades, fiberglass is widely used to all trades and professions with many excellent characteristics such as its high-strength light, corrosion-resistant, but
The leftover pieces and old glass generated in the increase of China's application time and the continuous growth of yield, production process with fiberglass
The amount of glass steel part the like waste gradually increases, in addition fiberglass is corrosion-resistant, is not easy weathering, its waste is most at present
As the processing of building waste goods consumer waste filling and embedding, foreign countries also have using the method burned or crack processing, mostly have to environment
There is larger pollution.Therefore, remove to prepare some value products as solution glass using glass fibre reinforced plastic waste as a kind of raw material
The cycling and reutilization problem of glass steel waste is a direction for being worth research.
The pipeline that the country uses at present is all made of generally the materials such as cement, cast iron, PVC, but these materials are generally deposited
It is poor in corrosion resistance, and crushing resistance and insufficient strength, make the lost of life of pipeline, not only not environmentally, and also it is uneconomical, it can be more
Ground wasting manpower and material resources.Therefore, research and develop it is a kind of being resistant to burn into pipeline not easy to crack, extend pipeline life, reduce at
This, reduces and replaces number, have great importance for energy conservation and environmental protection.
Invention content
The present invention provides cost-effective one kind, energy conservation and environmental protection, property to solve one of problem above in the prior art
Energy fiberglass regrown material multiple tube and preparation method thereof excellent, convenient for production.
To achieve the above object, the present invention provides a kind of fiberglass regrown material multiple tube, includes the original of following parts by weight
Material：Resin 10-20, rubble 23-30, quartz sand or river sand 25-30, fiberglass granular wastes and/or fiberglass powder scrap 10-
40, additive amount is the curing agent of the 1-3% of the weight resin, and additive amount is the accelerating agent of the 1-3% of the weight resin, is added
Dosage is the colorant of the 2-8% of the weight resin.
Preferably, the resin is adjacent benzene-type resin.
Preferably, the curing agent is methyl ethyl ketone peroxide.
Preferably, the accelerating agent is cobalt water or benzene.
Preferably, the ballast grain sizes are 2-6 mesh.
Preferably, the quartz sand or river sand grain size are 20-80 mesh.
Preferably, the grain size of the fiberglass granular wastes is 200-300 mesh, and the grain size of the fiberglass powder scrap is
300-400 mesh.
Preferably, the raw material of the multiple tube is following parts by weight：The resin 16, the rubble 26, the quartz sand
Or the river sand 27, the fiberglass granular wastes and/or the fiberglass powder scrap 37.
Preferably, the additive amount of the curing agent is the 2% of the weight resin, and the additive amount of the accelerating agent is described
The 2% of weight resin, the additive amount of the colorant are the 5% of the weight resin.
In addition, also providing a kind of preparation method of above-mentioned fiberglass regrown material multiple tube, include the following steps：
(1) releasing agent is coated in the mold of the multiple tube；
(2) raw material Centrifugal rolling motivation is put by its corresponding parts by weight respectively uniformly to be mixed；
(3) start Centrifugal rolling motivation, run 5-15 minutes, the Centrifugal rolling motivation stops operating；
(4) it demoulds, takes out the multiple tube for preparing and completing, and the multiple tube is placed in shaping platform sizing.
Compared with prior art, the present invention has the following technical effects：
The present invention provides a kind of fiberglass regrown material multiple tubes and preparation method thereof, and preparation method is simple for this,
Cost is relatively low, using the mixing such as fiberglass granular wastes or fiberglass powder scrap as one of the raw material for preparing multiple tube, becomes
Waste be changed into values, alleviates the pollution problem of environment, environmentally protective, improves resource utilization, and reduces production cost, increases enterprise
Benefit；Preparation section is simple and efficient, and the multiple tube uniform color prepared, inner surface is smooth, and service life is long, hardness
Greatly, resistance to compression degree is strong, and comprehensive performance is good.
Specific implementation mode
With reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
The method is conventional method unless otherwise instructed, and the raw material can obtain unless otherwise instructed from open commercial sources.
Following embodiment is in parts by mass.
Embodiment 1
A kind of fiberglass regrown material multiple tube, includes the raw material of following parts by weight：Resin 10-20, rubble 23-30, stone
Sand or river sand 25-30, origin source widely recycle the broken fiberglass granular wastes and/or glass being prepared of discarded glass comminuted steel shot
Glass powdered steel waste material 10-40, additive amount are the curing agent of the 1-3% of the weight resin, and additive amount is the weight resin
The accelerating agent of 1-3%, additive amount are the colorant of the 2-8% of the weight resin.The preferably adjacent benzene-type resin of the resin, it is described solid
The preferred methyl ethyl ketone peroxide of agent, the preferred cobalt water of the accelerating agent or benzene, the preferred 2-6 mesh of ballast grain sizes, the quartz sand
Or the preferred 20-80 mesh of river sand grain size, the grain size of the fiberglass granular wastes is preferably 200-300 mesh, the glass powdered steel
The preferred 300-400 mesh of grain size of waste material.Wherein, the grain size of fiberglass granular wastes and fiberglass powder scrap also has suitable big
It is small, i.e., the size of particle and powder cannot too greatly can not be too small, when the fiberglass granular wastes and/or glass powdered steel are useless
When the grain size of material is 200-400 mesh, it can ensure that the fully dispersed of fiberglass granular wastes and/or fiberglass powder scrap and protect
Hold enough viscosity.
In addition, a kind of preparation method of above-mentioned fiberglass regrown material multiple tube is provided in another embodiment, including
Following steps：
(1) releasing agent is coated in the mold of the multiple tube；
(2) raw material Centrifugal rolling motivation is put by its corresponding parts by weight respectively uniformly to be mixed；
(3) start Centrifugal rolling motivation, run 5-15 minutes, the Centrifugal rolling motivation stops operating；
(4) it demoulds, takes out the multiple tube for preparing and completing, and the multiple tube is placed in shaping platform sizing.
Wherein, the raw material of different type and grain size can be sufficiently mixed by handling the raw material using Centrifugal rolling motivation so that
Whole preparation process is efficient and excellent product quality.The fiberglass granular wastes or the fiberglass powder scrap are that will report
Gained after useless or discarded glass fiber reinforced plastics product is broken.
Embodiment 2
On the basis of embodiment 1, the preferred embodiment of fiberglass regrown material multiple tube of the present invention, including following weight
The raw material of part：The resin 16, the rubble 26, the quartz sand or the river sand 27, the fiberglass granular wastes and institute
State fiberglass powder scrap 37, wherein grain size is fiberglass granular wastes described in 200-300 purposes and grain size is 300-400 mesh
The fiberglass powder scrap ratio be 3:7, the additive amount of the curing agent is the 2% of the weight resin, the promotion
The additive amount of agent is the 2% of the weight resin, and the additive amount of the colorant is the 5% of the weight resin.
Using the preparation method in embodiment 1, fiberglass regeneration can be prepared with the composition of raw materials described in the present embodiment 2
Material cladding pipe, wherein in the preparation method step 3, the Centrifugal rolling motivation is run 10 minutes, the fiberglass of gained
The performance test results of regrown material multiple tube are as follows：
Embodiment 3
On the basis of embodiment 1, the preferred embodiment of fiberglass regrown material multiple tube of the present invention, including following weight
The raw material of part：The resin 10, the rubble 23, the quartz sand or the river sand 25, the fiberglass granular wastes or institute
Fiberglass powder scrap 40 is stated, the additive amount of the curing agent is the 3% of the weight resin, and the additive amount of the accelerating agent is
The 3% of the weight resin, the additive amount of the colorant are the 8% of the weight resin.
Using the preparation method in embodiment 1, fiberglass regeneration can be prepared with the composition of raw materials described in the present embodiment 3
Material cladding pipe, wherein in the preparation method step 3, the Centrifugal rolling motivation is run 8 minutes, and the fiberglass of gained is again
The performance test results of green material multiple tube are as follows：
Embodiment 4
On the basis of embodiment 1, the preferred embodiment of fiberglass regrown material multiple tube of the present invention, including following weight
The raw material of part：The resin 15, the rubble 26, the quartz sand or the river sand 28, the fiberglass granular wastes or institute
Fiberglass powder scrap 32 is stated, the additive amount of the curing agent is the 1.5% of the weight resin, the additive amount of the accelerating agent
It is the 1.5% of the weight resin, the additive amount of the colorant is the 5% of the weight resin.
Using the preparation method in embodiment 1, fiberglass regeneration can be prepared with the composition of raw materials described in the present embodiment 4
Material cladding pipe, wherein in the preparation method step 3, the Centrifugal rolling motivation is run 13 minutes, the fiberglass of gained
The performance test results of regrown material multiple tube are as follows：
Embodiment 5
On the basis of embodiment 1, the preferred embodiment of fiberglass regrown material multiple tube of the present invention, including following weight
The raw material of part：The resin 20, the rubble 27, the quartz sand or the river sand 28, the fiberglass granular wastes or institute
Fiberglass powder scrap 32 is stated, the additive amount of the curing agent is the 2% of the weight resin, and the additive amount of the accelerating agent is
The 2% of the weight resin, the additive amount of the colorant are the 7% of the weight resin.
Using the preparation method in embodiment 1, fiberglass regeneration can be prepared with the composition of raw materials described in the present embodiment 5
Material cladding pipe, wherein in the preparation method step 3, the Centrifugal rolling motivation is run 15 minutes, the fiberglass of gained
The performance test results of regrown material multiple tube are as follows：
By embodiment 1-5, the multiple tube that the present invention is prepared using the raw material of different weight number is surveyed by relevant criterion
Examination it is found that the raw material using different weight number carries out mixture prepared final multiple tube by ratio from low to high,
Preferable resistance to compression, bending resistance, tension, shearing resistance, anti-impact, freeze proof and chemical-resistance are all had, wherein preparation-obtained final
Multiple tube all has uniform color, the influential cracking of no performance, layering, pin hole, flash, burr, depainting or defect, interior
The good appearance properties such as surface is smooth, i.e. formula of the invention and preparation method have preferable universality；Wherein, real
It is most highly preferred embodiment of the invention to apply example 2, and every test performance of prepared multiple tube is optimal.
In addition, the present invention is described multiple as preparing using the mixing such as fiberglass granular wastes and/or fiberglass powder scrap
One of the raw material for closing pipe, not only saves raw material, also solves the recycling of fiberglass granular wastes and fiberglass powder scrap
Process problem makes important contribution for environmental protection and energy saving.
It should be noted that embodiment described above is only used for explaining the present invention, do not constitute to any of the present invention
Limitation.If the spirit and scope of the present invention are not departed to the various changes or modifications of the present invention, if these modification and variations
Belong within the scope of the claim and equivalent technologies of the present invention, then the present invention is also intended to include these modification and variations.
Claims (10)
1. a kind of fiberglass regrown material multiple tube, which is characterized in that include the raw material of following parts by weight：Resin 10-20, rubble
23-30, quartz sand or river sand 25-30, fiberglass granular wastes and/or fiberglass powder scrap 10-40, additive amount are the tree
The curing agent of the 1-3% of fat weight, additive amount are the accelerating agent of the 1-3% of the weight resin, and additive amount is the resin weight
The colorant of the 2-8% of amount.
2. fiberglass regrown material multiple tube according to claim 1, which is characterized in that the resin is adjacent benzene-type tree
Fat.
3. fiberglass regrown material multiple tube according to claim 1, which is characterized in that the curing agent is peroxidating first
Ethyl ketone.
4. fiberglass regrown material multiple tube according to claim 1, which is characterized in that the accelerating agent be cobalt water or
Benzene.
5. fiberglass regrown material multiple tube according to claim 1, which is characterized in that the ballast grain sizes are 2-6 mesh.
6. fiberglass regrown material multiple tube according to claim 1, which is characterized in that the quartz sand or river sand grain size
For 20-80 mesh.
7. fiberglass regrown material multiple tube according to claim 1, which is characterized in that the fiberglass granular wastes
Grain size is 200-300 mesh, and the grain size of the fiberglass powder scrap is 300-400 mesh.
8. according to claim 1-7 any one of them fiberglass regrown material multiple tubes, which is characterized in that the multiple tube
Raw material is following parts by weight：The resin 16, the rubble 26, the quartz sand or the river sand 27, the glass steel particles
Waste material and/or the fiberglass powder scrap 37.
9. fiberglass regrown material multiple tube according to claim 8, which is characterized in that the additive amount of the curing agent is
The 2% of the weight resin, the additive amount of the accelerating agent are the 2% of the weight resin, and the additive amount of the colorant is institute
State the 5% of weight resin.
10. a kind of preparation method according to claim 1-9 any one of them fiberglass regrown material multiple tubes, feature exists
In including the following steps：
(1) releasing agent is coated in the mold of the multiple tube；
(2) raw material Centrifugal rolling motivation is put by its corresponding parts by weight respectively uniformly to be mixed；
(3) start Centrifugal rolling motivation, run 5-15 minutes, the Centrifugal rolling motivation stops operating；
(4) it demoulds, takes out the multiple tube for preparing and completing, and the multiple tube is placed in shaping platform sizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810319643.0A CN108570243A (en) | 2018-04-11 | 2018-04-11 | A kind of fiberglass regrown material multiple tube and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810319643.0A CN108570243A (en) | 2018-04-11 | 2018-04-11 | A kind of fiberglass regrown material multiple tube and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108570243A true CN108570243A (en) | 2018-09-25 |
Family
ID=63574827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810319643.0A Pending CN108570243A (en) | 2018-04-11 | 2018-04-11 | A kind of fiberglass regrown material multiple tube and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108570243A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0593449A1 (en) * | 1989-11-29 | 1994-04-27 | Wavin Bv | Plastic pipe with a wall made up of a plastic-filler layer. |
| JPH08159367A (en) * | 1994-12-12 | 1996-06-21 | Sekisui Chem Co Ltd | Pipe reclaiming member, and stain-proofing method of conduit by this pipe reclaiming member |
| CN2288333Y (en) * | 1997-06-20 | 1998-08-19 | 上海电力学院 | Composite pipeline of ultra-high molecular weight polyethylene and glass fibre reinforced plastics |
| CN101148337A (en) * | 2007-11-12 | 2008-03-26 | 石家庄市银杏砂制品有限公司 | Drainage system pipe and manufacturing method thereof |
| CN202674571U (en) * | 2012-05-26 | 2013-01-16 | 大庆中浮石油技术开发有限公司 | Environment-friendly high-strength glass reinforced plastic sand pipe |
| CN103591393A (en) * | 2013-11-13 | 2014-02-19 | 武汉理工大学 | Glass fiber reinforced plastic prestressed concrete cylinder pipe (PCCP) and manufacturing method thereof |
| CN205842005U (en) * | 2016-08-04 | 2016-12-28 | 广州市双时复合材料有限公司 | A kind of glass reinforced plastic pipe |
| CN107599273A (en) * | 2017-09-13 | 2018-01-19 | 山东省呈祥电工电气有限公司 | Enhancing by polymer Prestressed concrete cylinder pipe road moulding process |
-
2018
- 2018-04-11 CN CN201810319643.0A patent/CN108570243A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0593449A1 (en) * | 1989-11-29 | 1994-04-27 | Wavin Bv | Plastic pipe with a wall made up of a plastic-filler layer. |
| JPH08159367A (en) * | 1994-12-12 | 1996-06-21 | Sekisui Chem Co Ltd | Pipe reclaiming member, and stain-proofing method of conduit by this pipe reclaiming member |
| CN2288333Y (en) * | 1997-06-20 | 1998-08-19 | 上海电力学院 | Composite pipeline of ultra-high molecular weight polyethylene and glass fibre reinforced plastics |
| CN101148337A (en) * | 2007-11-12 | 2008-03-26 | 石家庄市银杏砂制品有限公司 | Drainage system pipe and manufacturing method thereof |
| CN202674571U (en) * | 2012-05-26 | 2013-01-16 | 大庆中浮石油技术开发有限公司 | Environment-friendly high-strength glass reinforced plastic sand pipe |
| CN103591393A (en) * | 2013-11-13 | 2014-02-19 | 武汉理工大学 | Glass fiber reinforced plastic prestressed concrete cylinder pipe (PCCP) and manufacturing method thereof |
| CN205842005U (en) * | 2016-08-04 | 2016-12-28 | 广州市双时复合材料有限公司 | A kind of glass reinforced plastic pipe |
| CN107599273A (en) * | 2017-09-13 | 2018-01-19 | 山东省呈祥电工电气有限公司 | Enhancing by polymer Prestressed concrete cylinder pipe road moulding process |
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Application publication date: 20180925 |