CN105802199B - A kind of no-dig technique pipeline rehabilitation composite and preparation method thereof - Google Patents
A kind of no-dig technique pipeline rehabilitation composite and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of no-dig technique pipeline rehabilitation composite and preparation method thereof, it is related to the preparation of composite, it is characterised in that comprise the following steps：Terylene needle fabric and TPU are used as raw material, first carries out hot press forming technology processing, then resin is irrigated through VARI moulding process, is prepared into no-dig technique pipeline rehabilitation composite.The present invention repaiies pipeline multiplexing composite with hot-forming and VARI shaping process integration exploitation no-dig techniques, this method technological process is short, and cost is relatively low, the composite materials property of development exceedes similar composite, drainage pipeline, feedwater piping, industrial pipeline and the oil transportation, gas transmission, aqueduct of different-diameter are can be applied not only to, can be also used for pipeline and the field such as dry pipe joint reparation and artificial well reparation renewal and reform of different size.
Description
Technical field：
The present invention relates to the preparation of composite, is specifically related to a kind of no-dig technique pipeline rehabilitation composite and its system
Preparation Method.
Background technology：
The survival and development in city need to supply water, gas, oil, electricity and drain the sewage away, the function such as flood is required for pipeline
To complete, in order to not disturb the life of people, these pipelines are often layed in underground, referred to as underground piping, and these pipelines are according to it
Function can be divided into：Gas pipeline, water supply line, drainage pipeline, power pipe, heat distribution pipeline and TV, phone, network cable
Or optical cable etc..After urban buried pipeline comes into operation 15~20 years, the accident high-incidence season has been put into, has in a planned way been carried out to old
The reparation of pipeline is very urgent.Take no-dig technique means to solve the Excavation Problems in Morden Pipe Network transformation, reduce pipe network improving
The negative effect brought is urban construction and the strong request of modern society's life.
At present, Lining Hose method recovery technique is typically chosen, the technology relative adaptability is strong, reliable in quality, can accomplish
Under conditions of not excavating earth surface, non-woven cloth is made using fibrous material, the processing of antiseepage membrane is carried out and is stitched into pipe
Shape, then impregnating resin, is allowed to be lining on old pipeline inwall using inversion method using air pressure or hydraulic pressure, under certain pressure normal temperature or
The composite material as liner pipe of inner wall smooth is formed after being heating and curing, so as to complete the protection and reparation to old pipeline.This technology is only
The operating pit of 1.5 square meters need to be respectively dug at the both ends of pipeline to be repaired, excavation area is small, eliminates the ring of noise, dust etc.
Border is polluted, and traffic is obstructed, destroyed the puzzlement of the problems such as appearance of the city, meets the environmentally friendly requirement of modern city, and social benefit is obvious.
Therefore, tubular nonwoven compound material is very big applied to pipeline rehabilitation field market, has huge application potential with answering
Use prospect.
Technique is developed by Britain engineer the 1970s to repair sewer pipe, in recent years
Individual countries and regions more than 40 use in the world, application it is more be Japan, the U.S., Germany and France etc., formed special
Industry company and special industry, many sewage conducts and water supply pipe of western developed country have the history of more than 100 years,
Thus need reparation or change the construction technology of these pipelines.The formal starting of domestic pipeline recovery technique be in 1993, this
Though preceding cement lining technology has application in old pipeline, mainly for the purpose of anti-corrosion.The prosthetic appliance of most domestic with
Repair materials are introduced by foreign countries, and the prosthetic appliance of introduction can use for many years, and largely introduce expensive state and dispatch workers to do on-site repairs
Multiple material product, pipeline rehabilitation cost height is caused, and due to the change of domestic construction environment, the repairing effect of introducing product
Also and unstable, the quality of another aspect external product is nor perfect, the repair materials selection of different purposes pipelines
Also unit in charge of construction is usually perplexed, therefore autonomous Design is adapted to the pipeline rehabilitation tubular nonwoven of Chinese market demand with exploitation
Composite is imperative.
The content of the invention：
The first aspect of the present invention purpose is to provide the non-excavation rehabilitation of a kind of anti-seepage effect and good mechanical performance with again
Condensation material.
The technical scheme that the present invention takes is as follows：
A kind of no-dig technique pipeline rehabilitation composite, it is characterised in that：Terylene needle fabric is selected as compound
The matrix of material, the reinforcement of thermoplasticity spandex elastomers and high temperature resistant AB glue epoxy resin as composite.
Described terylene needle fabric:Gram Mass is 448g/m2, thickness 3.30mm, the fracture of warp, broadwise
Stress is respectively 4.90MPa, 4.06MPa, and warp, the elongation at break of broadwise are respectively 50.92%, 90.64%.
The thermoplasticity spandex elastomers (TPU)：Thickness 0.06mm, weight 83.8g/m2.Hot melt is good, bonding force is strong,
High mechanical strength, there is good heat resistance, resistance to acids and bases, organic solvent resistance and insulating properties, Applicable temperature scope is wide, can be
It is long-term use of under the conditions of 150 DEG C, reachable -55 DEG C of cold resistance.
The high temperature resistant AB glue epoxy resin is preferably the curing agent of E44- epoxy resin/650, to make resin preferably infiltrate
In fabric, appropriate diluent (absolute ethyl alcohol) need to be added, to increase the mobility of resin, the addition of diluent is excessive,
Then delay resin curing time, if the addition of diluent is very few, be unfavorable for the flowing of resin, so the quality of general diluent
Fraction is 10%.
Beneficial effects of the present invention are as follows：
Mechanical property when pipeline rehabilitation composite must have certain anti-water penetration, anti-gas permeability and turn over lining, this
Invention, as antiseepage film, is characterized in oil resistant, water-fast, wear-resisting, chemical inertness is strong, seals energy using the preferable TPU of hot molten characteristic
Power is good, and Acclimation temperature scope is wide, strength height is bonded, so as to increase the interface bond strength of antiseepage film and non-woven cloth and fiber
Between adhesion strength.
The second aspect of the present invention is to provide a kind of preparation method of no-dig technique pipeline rehabilitation composite, and its feature exists
In comprising the following steps：Terylene needle fabric and TPU are used as raw material, first carries out hot press forming technology processing, then pass through
VARI moulding process irrigates resin, is prepared into no-dig technique pipeline rehabilitation composite.
Preferable technique sets as follows：
Described hot press forming technology：Terylene needle fabric and TPU are put into mould according to a certain ratio, certain
Under the conditions of carry out it is hot-forming, obtain strengthen fabric, wherein terylene needle fabric and TPU proportioning is 1 layer of terylene acupuncture
Non-woven cloth and 2 layers of TPU progress hot pressing are compound, and hot press forming technology condition is：Pressure 5MPa, 140 DEG C of temperature, time 90s.
The enhancing fabric obtained after hot press forming technology is handled, warp-wise fracture strength reach 14.5MPa, and broadwise fracture should
Power reaches 11.8MPa.
The VARI moulding process：Enhancing fabric prepared by hot press forming technology is placed in VARI shaped devices, passed through
Vavuum pump vacuumizes loading negative pressure, when pressure value stabilization is in -0.08MPa, by resin adhesive liquid injection moulding device, utilizes
Flowing, the infiltration of resin adhesive liquid, resin adhesive liquid is uniformly impregnated with fabric is strengthened, then solidified at room temperature, produces non-open
Dig pipeline rehabilitation composite；
Described resin adhesive liquid is epoxy resin, curing agent and diluent, the quality of epoxy resin, curing agent and diluent
Proportioning is preferably 100:60:20.
The VARI moulding process, comprises the following steps：
(1), the preparation of mould：
Enhancing fabric, demoulding cloth, flow-guiding screen, vacuum bag film are sequentially placed in mould according to technological requirement, then
Being bonded two layers of vacuum bag film with sealant tape prevents gas leakage；
(2), the preparation of resin adhesive liquid：
Resin adhesive liquid selection epoxy resin, curing agent and diluent, the quality proportioning of epoxy resin, curing agent and diluent
Selection 100:60:20；
(3), the perfusion of resin adhesive liquid：
Open vavuum pump and extract air, when pressure value stabilization is in -0.08MPa, by resin adhesive liquid injection moulding device,
Resin adhesive liquid is set to be uniformly impregnated with fabric is strengthened；
(4), the stripping of vacuum bag film：
The vacuum bag film on upper strata is peeled off, then in cold curing, flow-guiding screen and demoulding cloth is finally peeled away, obtains the present invention
Pipeline rehabilitation composite.
The preparation method of the present invention, compared with prior art, has the advantages that：
1st, the present invention mainly has the innovation of two aspects：First, optimizing hot-forming and VARI process integrations, pass through technique
Improvement, the excellent composite of exploitation barrier performance；Second, by improving hot-forming and VARI process integration conditions, improve
The mechanical performance of no-dig technique pipeline rehabilitation composite.
2nd, the present invention repaiies pipeline multiplexing composite, the party with hot-forming and VARI shaping process integration exploitation no-dig techniques
Method is put into mould with condition according to a certain ratio using terylene needle fabric and TPU, is hot pressed under certain condition
Type, then the composite through the perfusion resin manufacture antiseepage enhancing of VARI techniques, this method technological process is short, and cost is relatively low,
The composite materials property of development exceedes similar composite, can be applied not only to drainage pipeline, the feed pipe of different-diameter
Road, industrial pipeline and oil transportation, gas transmission, aqueduct, can be also used for different size pipeline and dry pipe joint reparation and
Artificial well repairs the fields such as renewal and reform.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment：
Fig. 1 is hot press forming technology schematic diagram of the present invention；
Fig. 2 is VARI moulding process schematic diagram of the present invention；
Fig. 3 is composite micro-structure diagram prepared by different process.
Label in figure：10 be upper processing release paper；11 be TPU；12 be fabric；13 be upper hot pressboard；14 be bottom knockout paper；15 are
Lower hot pressing board；20 be flow-guiding screen；21 be release cloth；22 be enhancing fabric；23 be vacuum bag film；24 be mould equipment；25 are
Resin injects；26 be that Excess resin exports.
Embodiment：
A kind of preparation method of no-dig technique pipeline rehabilitation composite of the present invention, its technological process are as follows：Terylene pin
Spunlaced nonwoven → hot press forming technology → VARI moulding process → pipeline rehabilitation composite.
1st, hot press forming technology：
Terylene needle fabric and TPU are put into mould according to a certain ratio, carry out under certain condition it is hot-forming,
Obtain strengthening fabric, hot press forming technology schematic diagram is as shown in Figure 1.
1.1st, raw material selects：
The present invention is compound using 1 layer of terylene needle fabric and 2 layers of thermoplasticity spandex elastomers (TPU) progress hot pressing,
Wherein：
Terylene needle fabric:Gram Mass is 448g/m2, thickness 3.30mm, warp, the fracture strength point of broadwise
Not Wei 4.90MPa, 4.06MPa, warp, the elongation at break of broadwise are respectively 50.92%, 90.64%.
Thermoplasticity spandex elastomers (TPU)：Thickness 0.06mm, weight 83.8g/m2.Hot melt is good, bonding force is strong, machinery
Intensity is high, has good heat resistance, resistance to acids and bases, organic solvent resistance and insulating properties, Applicable temperature scope is wide, can be 150
It is long-term use of under the conditions of DEG C, reachable -55 DEG C of cold resistance.
1.2nd, hot press forming technology condition selects：
Optimization hot press forming technology is advantageous to improve the barrier performance and fracture strength of composite, and plan design is such as
Under：
From L9(34) orthogonal form, using pressure, temperature and time as 3 factors, each 3 levels of Factor minute are tested.
Heat pressing process is optimized as overall target using the warp-wise fracture strength σ of material, fracture strength calculation formula such as formula (1),
Factor level table is as shown in table 1.
In formula (1), σ is fracture strength, MPa；F is ultimate strength, N；B is the width (mm) of sample；D is the thickness of sample
(mm)。
Table 1, factor level table：
| It is horizontal | Time/s | Temperature/DEG C | Pressure/MPa |
| 1 | 90 | 120 | 1.5 |
| 2 | 150 | 130 | 3 |
| 3 | 300 | 140 | 5 |
Table 2, range analysis of orthogonal experiment：
Range analysis of orthogonal experiment result is as shown in table 2：Judge from overall target fracture strength, its influence of 3 factor pairs
Degree size order is pressure>Temperature>Time, the optimal heat pressing process of hot-forming composite are：Pressure 5MPa, temperature
140 DEG C, time 90s.By complementary testing, the warp-wise fracture strength for obtaining hot-forming composite has reached 14.5MPa,
Broadwise fracture strength has reached 11.8MPa, illustrates that optimization of orthogonal test hot press forming technology is relatively reasonable.
2nd, VARI (vacuum assisted resin infusion) technique：
Vacuum assisted resin infusion (VARI) technique is a kind of lower-cost Composites Molding Techniques, and its principle is in normal temperature
Under, vavuum pump vacuumizes loading negative pressure, using the flowing of resin, infiltration, realizes that resin is uniformly impregnated with fabric, solidifies
After form a kind of advanced composite material (ACM).VARI (vacuum assisted resin infusion) process schematic representation is as shown in Figure 2.
2.1st, the preparation of mould：
As shown in Fig. 2 the raw material for testing use is sequentially placed according to VARI process schematic representations, finally will with sealant tape
Two layers of vacuum bag, which bonds, prevents gas leakage, wherein enhancing fabric is by being hot pressed into by 1 layer of terylene needle fabric and 2 layers of TPU
Type technique is prepared.
2.2nd, the preparation of resin adhesive liquid：
According to previous experiments, consider from two factors of economic benefit and hardening time, this method selection epoxy resin, solidification
The quality proportioning of agent and diluent selection 100:60:20.
Present invention preferably employs high temperature resistant AB glue epoxy resin (epoxy resin and curing agent), and add appropriate diluent
(absolute ethyl alcohol), the mass fraction of diluent is 10%.Because resin curing time is in VARI techniques during preparation to sample
Between curing molding is a key factor after repair with composite, therefore to epoxy resin, curing agent and diluent use
Different ratio, vacuumized after well mixed, observe resin curing time at room temperature, it is specific as shown in table 3.
Table 3, resin solidification test result：
As shown in table 3：At ambient temperature, the content of curing agent is bigger in mixed system, and the hardening time of resin is faster.
Because the primary amine and secondary amine of curing agent are to open epoxy radicals by the active hydrogen on nitrogen-atoms to the solidification of epoxy resin
Group, is allowed to crosslinking curing, and how much directly proportional the power of this crosslinking curing effect is to the content of curing agent.On the one hand given birth to improve
Efficiency is produced, the hardening time of resin should be as short as possible on the premise of meeting to test, and another aspect curing agent is than epoxy resin valency
Lattice are high, therefore from economic benefit and from the aspect of hardening time two, present invention preferably employs：Epoxy resin, curing agent and dilution
The proportioning selection 100 of agent:60:20.
2.3rd, the perfusion of resin adhesive liquid：
Open vavuum pump and extract air, when pressure value stabilization is in -0.08MPa, resin ingress pipe is inserted into resin adhesive liquid
In, resin is entered shaped device by ingress pipe.
2.4th, the stripping of vacuum bag film：
The vacuum bag film on upper strata is peeled off during off-test, then in cold curing, is finally peeled away flow-guiding screen and demoulding cloth,
Obtain the pipeline rehabilitation composite of the present invention.
3rd, Product checking：
By the present invention using the hot-forming pipeline rehabilitation composite prepared with VARI shaping integrated processes, with routine
Terylene needle fabric, the reinforcing material handled through hot press forming technology of the present invention carry out material microstructure, machinery respectively
Performance test, it is as follows：
The microstructure of 3.1 various materials:
As shown in figure 3, the microstructure of various materials is tested using industrial microscope, wherein figure a knits for terylene acupuncture is non-
Make cloth, figure b for enhancing composite (using 1 layer of terylene needle fabric and 2 layers of TPU by hot press forming technology preparation and
Into), figure c is using the hot-forming pipeline rehabilitation composite prepared with VARI shaping integrated processes.
It can be seen that from figure b：The TPU of thawing infiltrated textile surfaces that arrive under the conditions of certain temperature and pressure
Between fiber, illustrate that TPU antiseepage films prepared by hot press forming technology meet making requirement.From figure c in it can be seen that, single fiber with
Resin boundary surface is tightly combined, and resin can penetrate into the inside of non-woven cloth, and it is compound to illustrate that VARI techniques can ensure that
The integrality at fiber-resin interface in material, meet the making requirement of non-weaving cloth composite material.
The measuring mechanical property of 3.2 various materials：
By terylene non-weaving cloth (1#), the composite (2#) of hot-forming preparation, hot-forming and VARI shaping joints
Composite (3#) prepared by technique tests its mechanical performance and is shown in Table 4 under certain condition.
The tensile property data of table 4, different materials
With reference to shown in table 4：The fracture strength size order of material is 3#>2#>1#, and the warp of various composites, broadwise
Fracture strength and elongation at break meet turn over lining method repair no-dig technique pipeline material requested mechanical performance index.With reference to figure
3 (b) surface of resin penetration to fabric, adds fibre after resin solidification it can be seen that composite after hot-forming
Adhesion strength between dimension, and then improve the fracture strength of hot-forming composite.With reference to Fig. 3 (c) by hot press forming technology
Reinforcing material after reason, then through VARI PROCESS FOR TREATMENTs, the inside configuration of resin penetration to composite, the sky between fiberfill fibers
Between, close cladding is formed to fiber so that fibre bundle forms continuous phase, further improves sheet non-weaving cloth composite material
Fracture strength.In summary, nonwoven fabric is substantially changed by the processing of hot-forming and VARI process integrations, its fracture strength
It is kind.
Claims (4)
1. a kind of preparation method of no-dig technique pipeline rehabilitation composite, it is characterised in that comprise the following steps：Using terylene
Needle fabric and TPU are raw material, first carry out hot press forming technology processing, then irrigate resin through VARI moulding process, are prepared
Obtain no-dig technique pipeline rehabilitation composite；
The terylene needle fabric:Gram Mass is 448g/m2, thickness 3.30mm, warp, the fracture strength point of broadwise
Not Wei 4.90MPa, 4.06MPa, warp, the elongation at break of broadwise are respectively 50.92%, 90.64%；
The TPU：Thickness 0.06mm, weight 83.8g/m2, hot melt is good, bonding force is strong, high mechanical strength, has well resistance to
Hot, resistance to acids and bases, organic solvent resistance and insulating properties, Applicable temperature scope is wide, long-term use of under the conditions of 150 DEG C, resists cold
Reachable -55 DEG C of property；
Described hot press forming technology：Terylene needle fabric and TPU are put into mould according to a certain ratio, in certain condition
It is lower to carry out hot-forming, obtain strengthening fabric, wherein terylene needle fabric and TPU proportioning is 1 layer terylene acupuncture is non-knits
Make cloth and 2 layers of TPU progress hot pressing are compound, hot press forming technology condition is：Pressure 5MPa, 140 DEG C of temperature, time 90s；
The VARI moulding process：Enhancing fabric prepared by hot press forming technology is placed in VARI shaped devices, passes through vacuum
Pumping vacuum load negative pressure, when pressure value stabilization is in -0.08MPa, by resin adhesive liquid injection moulding device, utilize resin
Flowing, the infiltration of glue, resin adhesive liquid is uniformly impregnated with fabric is strengthened, then solidified at room temperature, produces no-dig technique pipe
Road composition for repairing；
Described resin adhesive liquid is epoxy resin, curing agent and diluent, the quality proportioning of epoxy resin, curing agent and diluent
Selection 100:60:20.
A kind of 2. preparation method of no-dig technique pipeline rehabilitation composite according to claim 1, it is characterised in that：Through
The enhancing fabric obtained after hot press forming technology processing, warp-wise fracture strength reach 14.5 MPa, and broadwise fracture strength reaches
11.8 MPa。
A kind of 3. preparation method of no-dig technique pipeline rehabilitation composite according to claim 1, it is characterised in that：Institute
VARI moulding process is stated, is comprised the following steps：
（1）, mould preparation：
Enhancing fabric, demoulding cloth, flow-guiding screen, vacuum bag film are sequentially placed in mould according to technological requirement, then with close
Sealed adhesive tape, which bonds two layers of vacuum bag film, prevents gas leakage；
（2）, resin adhesive liquid preparation：
Resin adhesive liquid selection epoxy resin, curing agent and diluent, the quality proportioning selection of epoxy resin, curing agent and diluent
100:60:20；
(3), the perfusion of resin adhesive liquid：
Open vavuum pump and extract air, when pressure value stabilization is in -0.08MPa, by resin adhesive liquid injection moulding device, make tree
Fat glue is uniformly impregnated with fabric is strengthened；
（4）, vacuum bag film stripping：
The vacuum bag film on upper strata is peeled off, then in cold curing, flow-guiding screen and demoulding cloth is finally peeled away, obtains the pipeline and repair
It is multiplexed composite.
A kind of 4. preparation method of no-dig technique pipeline rehabilitation composite according to claim 3, it is characterised in that：Institute
The terylene needle fabric stated:Gram Mass is 448g/m2, thickness 3.30mm, warp, the fracture strength of broadwise are respectively
4.90MPa, 4.06MPa, warp, the elongation at break of broadwise are respectively 50.92%, 90.64%；
The TPU：Thickness 0.06mm, weight 83.8g/m2, hot melt is good, bonding force is strong, high mechanical strength, has well resistance to
Hot, resistance to acids and bases, organic solvent resistance and insulating properties, Applicable temperature scope is wide, can be long-term use of under the conditions of 150 DEG C, resistance to
Cold reachable -55 DEG C；
The epoxy resin is E44- epoxy resin, and the curing agent is 650 curing agent, and being added in E44- epoxy resin has dilution
Agent, diluent are absolute ethyl alcohol, and diluent mass fraction is 10%.
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| CN108819378A (en) * | 2018-06-28 | 2018-11-16 | 西安工程大学 | A method of cowboy's fibre reinforced composites are prepared using denim |
| CN110939820B (en) * | 2019-12-31 | 2021-08-20 | 南通大学 | Connecting method for pipeline repairing layer by non-excavation pipeline lining method |
| CN113108154A (en) * | 2021-04-12 | 2021-07-13 | 天津市艺智汇科技发展有限公司 | CIPP water overturning and repairing method for inspection well and pipeline |
| CN114458842A (en) * | 2021-12-17 | 2022-05-10 | 中裕软管科技股份有限公司 | Composite hose processing and construction process for repairing tap water pipe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575419A (en) * | 2008-05-09 | 2009-11-11 | 中国石油天然气股份有限公司 | Method for preparing repair prepreg for pipelines with defects |
| CN102807736A (en) * | 2012-08-27 | 2012-12-05 | 中国人民解放军空军勤务学院 | Static conductive lining for repairing product oil pipeline and manufacturing method thereof |
| CN104371272A (en) * | 2014-11-04 | 2015-02-25 | 中国石油天然气股份有限公司 | Pipeline reinforcement material system and reinforcement method |
-
2016
- 2016-04-14 CN CN201610230681.XA patent/CN105802199B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575419A (en) * | 2008-05-09 | 2009-11-11 | 中国石油天然气股份有限公司 | Method for preparing repair prepreg for pipelines with defects |
| CN102807736A (en) * | 2012-08-27 | 2012-12-05 | 中国人民解放军空军勤务学院 | Static conductive lining for repairing product oil pipeline and manufacturing method thereof |
| CN104371272A (en) * | 2014-11-04 | 2015-02-25 | 中国石油天然气股份有限公司 | Pipeline reinforcement material system and reinforcement method |
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Effective date of registration: 20190202 Address after: Room 205-29, Office Building, Investment Promotion Bureau, No. 15 Xinbei Road, Miyun District, Beijing Patentee after: BEIJING NORTHERN BURNING ENERGY ENGINEERING TECHNOLOGY CO., LTD. Address before: 312000 508 Yuecheng West Road, Yuecheng District, Shaoxing, Zhejiang Patentee before: Shaoxing University |