CN104761823A - Corrosion-resistant durable plastic inspection well - Google Patents
Corrosion-resistant durable plastic inspection well Download PDFInfo
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- CN104761823A CN104761823A CN201510103843.9A CN201510103843A CN104761823A CN 104761823 A CN104761823 A CN 104761823A CN 201510103843 A CN201510103843 A CN 201510103843A CN 104761823 A CN104761823 A CN 104761823A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- 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
- C08K2201/011—Nanostructured additives
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- 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
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
The invention relates to the technical field of water drainage and particularly relates to a corrosion-resistant durable plastic inspection well, which includes following raw materials, by weight: 65-66 parts of impact-resistant co-polymerized polypropylene, 20-22 parts of chlorinated polypropylene, 10-11 parts of chlorinated polyethylene, 5-7 parts of polyamide, 4-5 parts of HDPE, 5-8 parts of ethylene propylene diene monomer, 5-8 parts of a compatilizer, 4-5 parts of talcum powder, 2-3 parts of a nucleating agent, 5-7 parts of organically modified montmorillonite, 3-6 parts of nano silicon dioxide, 1-3 parts of a lubricant, 0.5-2 parts of a stabilizing agent and 1-10 parts of a filling material. The compatilizer is compounded from following components, by weight: 65-67% of maleic anhydride grafted polypropylene with grafting rate being 6-7%, 31-32% of a polyolefin elastomer with grafting rate being 7-11%, and 2-3% of barium sulfate. The nucleating agent is compounded from following components, by mass: 88-92% of poly formaldehyde, 5-7% of surface epoxy group modified nano titanium dioxide and 2-5% of p-dimethyldibenzylidene sorbitol. The material can be used for preparing the inspection well being high in strength and large in size with excellent corrosion-resistant and aging-resistant performances.
Description
Technical field
The present invention relates to technical field of drainage, be specifically related to a kind of anticorrosive durable plastic inspection chamber.
Background technology
Inspection chamber is the maintenance such as power supply, feedwater, draining, communication, wire television, gas pipe, public lighting circuit for Urban Underground Infrastructure, easy for installation and arrange.Generally be located on pipeline intersection, turning, caliber or gradient change place and straight line pipeline section and locate at a certain distance so that make regular check on, the well shape structures of clean and dredging or down-hole operation inspection.
Traditional inspection chamber mainly adopts brick concrete to be prepared from, and is by concrete, the materials such as mortar, brick, rubble, produces according to respective specified manufacture.Existing inspection chamber mostly is brick concrete inspection well, mainly there is following shortcoming in it: first intensity is low, quality stability is poor, and the support strength of brickwork construction is low, and the brickwork construction reducing reducing part especially near road surface is easily subsided because the horizontal reactive force of imbalance impacts; Secondly, speed of application is slow, the well body construction cycle is long, construction is complicated, owing to piling up at manual scene, requires high to civil engineering, stdn, universalization, seriation degree are poor, manual and materials number be the important factor affecting quality, on the impact of environment and Urban traffic greatly, do not meet the requirement of civilized construction, rapid construction; Exist in addition and can not change, easily break and seepage and the defect such as to pollute, need frequently keep in repair.
Plastic inspection well refers to that the main well seat part forming inspection chamber adopts once injection moulding, and pit shaft socket adopts 360 degree of ring-like carrying platforms, and adopt netted reinforcing rib bottom well bore and well seat, each bell and spigot adopts ring-like reinforcing rib design.Initial well seat, straight-through well seat, one eighth bend well seat, three drifting seats, four drifting seats etc. are had according to adapter number is different with angle.In order to adapt to various drainage condition, the plastics integrated injection molding accessory that plastic inspection well is simultaneously supporting reducer union, the joint that confluxes, pit shaft polylinker etc. are supporting with it.To ensure smoothness and the stopping property of whole water exhaust system.
Plastic inspection well simple installation, lightweight, be convenient to transport and install, dependable performance, bearing capacity are strong, good impact resistance, and corrosion-resistant, ageing-resistant, easy to connect with plastic conduit, good airproof performance, effectively prevents effluent seepage, safety and environmental protection; Inner wall smooth is smooth, and dirt is not easily detained, and reduce the possibility of blocking, ER for emission rate strengthens greatly; Pit shaft can scene carry out cutting, perforate, adjustment, adapt to various degree of depth installation requirement, can whole day construction, greatly improve construction speed, effectively reduce costs, construction be fast traditional inspection chamber 10-20 doubly more than.
The material of current plastic inspection well has polyethylene, polyvinyl chloride, and the inspection chamber adopting these several plastics to prepare exists following problem: due to inner wall surface fluffing, easily cause obstruction to foreign material; Overall insufficient strength, causes restriction to the size of inspection chamber; Erosion resistance is not enough, and be not suitable with severe environment and use, work-ing life is short.
Summary of the invention
The object of the invention is the problems referred to above existed to improve current plastic inspection well, a kind of anticorrosive durable plastic inspection chamber is provided.
A kind of anticorrosive durable plastic inspection chamber, the raw materials by weight portion meter of described plastic inspection well comprises following component: shock-resistant Co-polypropylene 65-66 part, Chlorinated Polypropylene III 20-22 part, chlorinatedpolyethylene 10-11 part, polymeric amide 5-7 part, HDPE 4-5 part, terpolymer EP rubber 5-8 part, compatilizer 5-8 part, talcum powder 4-5 part, nucleator 2-3 part, organic modification montmonrillonite 5-7 part, nano silicon 3-6 part, lubricant 1-3 part, stablizer 0.5-2 part, filler 1-10 part; Compatilizer be 65-67% by weight percentage and percentage of grafting be 6-7% maleic anhydride inoculated polypropylene, to be that the barium sulfate of the polyolefin elastomer of 7-11% and 2-3% is composite form the percentage of grafting of 31-32%; Nucleator is the polyoxymethylene of 88-92%, the nano titanium oxide of the surperficial epoxide group modification of 5-7% and forming dimethyldibenzylidenesorbitol is composite of 2-5% by mass percent.
This programme adopts multiple plastics compound, but there is the problem of crystallization difficulty, poor compatibility after multiple material compound, and can not get the prerequisite solved in consistency under, the performance of the inspection chamber of preparation not only can not get improving, and its quality can not get ensureing.
This programme is by shock-resistant Co-polypropylene, and Chlorinated Polypropylene III, chlorinatedpolyethylene part, polymeric amide and HDPE have carried out compound, and the proportioning between this different materials determines the performance of overall raw material, and then the performance of the inspection chamber of impact preparation.In order to improve the consistency between each component, this programme have employed composite compatilizer, this composite compatilizer is that on the basis of the performance considered between each superpolymer and the relation that influences each other, carry out multiple elements design formulated, this composite compatilizer can reach and effectively be combined by the other several side ingredient outside main body polypropylene, reduce the repellency between each component, promote each component to be uniformly distributed and improve the conjugation between each component molecular, improve the stability of the mixing material of preparation.For high performance inspection chamber provides the foundation guarantee.For multi-component nucleation difficult problem, this programme adopts composite nucleator, this composite nucleator is in conjunction with the bulk properties of various ingredients, and have also contemplated that the effect of influencing each other between each component, improve the even distribution of the crystal after each component nucleation, and improve overall degree of crystallinity to a certain extent.
Preferably, described raw material also comprises basalt fibre 3-8 part, and the diameter of basalt fibre is 0.5-5 μm.The excessive reinforced effects of diameter is not good, and the too small cost of diameter is too large.Basalt fibre has reinforced effects, and adding basalt fibre affects shock-resistant Co-polypropylene impact resistance to reduce various additive, and basalt fibre is than glass fibre excellent performance, and reaching, same reinforced effects is fewer than glass fibre addition.
Preferably, described raw material also comprises rare earth 1-3 part, and rare earth is lanthanum trioxide, cerium oxide or Praseodymium trioxide.Rare earth is good polypropylene beta nucleator, can promote the formation of polypropylene beta crystal, improves heat-drawn wire and shock strength.
Preferably, described organic modification montmonrillonite carries out orgnic-intercalation modification for adopting cetyl trimethylammonium bromide and octadecyl trimethyl ammonium chloride to sodium-based montmorillonite.According to Zhang Lin, the method for modifying of the paper " the organically-modified and sign of sodium-based montmorillonite " waited is prepared from.Polynite is divided into sodium base soil and calcium base soil substantially, and sodium-based montmorillonite has better properties.Organic modification montmonrillonite add the crystallization rate and percent crystallization in massecuite that can significantly improve shock-resistant Co-polypropylene, thus improve the mechanical property of shock-resistant Co-polypropylene, reduce the shrinking percentage in shock-resistant Co-polypropylene moulding process, reduce the cost of shock-resistant Co-polypropylene goods simultaneously.Due to the flame retardant effect of organic modification montmonrillonite, polypropylene, when there is fiery residence for sewer line, can reduce spreading of the intensity of a fire, reduces property damage.Reduce the loss caused of catching fire of biogas in water drain.
Preferably, the particle diameter of described nano silicon is 30-100nm.Nano silicon has obvious heterogeneous nucleation effect, can improve the Tc of shock-resistant Co-polypropylene, melt temperature, degree of crystallinity and crystallization rate, and vicat softening temperature have also been obtained raising simultaneously.
Preferably, lubricant is calcium stearate, Zinic stearas or stearic acid.Lubricant is used for the inside and outside dynamically lubricating balancing control of shock-resistant Co-polypropylene modified product, increases substantially fluidity of molten and surface gloss, can be directly used in injection moulding.
Preferably, filler is light calcium carbonate or titanium dioxide.Filler reduces the shrinking percentage in shock-resistant Co-polypropylene moulding process, reduces the cost of shock-resistant Co-polypropylene goods simultaneously.
Preferably, described polymeric amide is nylon 6, nylon 1010 or NYLON610.
Owing to adopting technique scheme, inspection chamber of the present invention has following beneficial effect:
1 intensity is large, for the preparation of large-sized inspection chamber provides the foundation;
The consistency of 2 mixing raw materials is better, can improve the over-all properties of inspection chamber;
The demand of 3 adaptation underground pipelines, possesses corrosion resistant performance;
4 ageing-resistant performances are good.
Embodiment
Embodiment 1
A kind of anticorrosive durable plastic inspection chamber, the raw materials by weight portion meter (every part of 1kg) of described plastic inspection well comprises following component: shock-resistant Co-polypropylene 65 parts, Chlorinated Polypropylene III 21 parts, chlorinatedpolyethylene 11 parts, polymeric amide 5 parts, HDPE 4.5 parts, terpolymer EP rubber 8 parts, compatilizer 5 parts, talcum powder 4.5 parts, nucleator 3 parts, organic modification montmonrillonite 5 parts, nano silicon 4 parts, lubricant 3 parts, stablizer 0.5 part, filler 5 parts;
Compatilizer be 65% by weight percentage and percentage of grafting be 6-7% maleic anhydride inoculated polypropylene, 32% percentage of grafting be that the polyolefin elastomer of 7-11% and the barium sulfate of 3% compositely form;
Nucleator is the polyoxymethylene of 88%, the nano titanium oxide of the surperficial epoxide group modification of 7% and 5% form dimethyldibenzylidenesorbitol is composite by mass percent.
Organic modification montmonrillonite carries out orgnic-intercalation modification for adopting cetyl trimethylammonium bromide and octadecyl trimethyl ammonium chloride to sodium-based montmorillonite, the particle diameter of nano silicon is 30-100nm, lubricant is calcium stearate, and filler is light calcium carbonate, and polymeric amide is nylon 6.
Carry out blending extrusion in the forcing machine of above raw material under 150-250 DEG C of condition, be then prepared inspection chamber.
Embodiment 2
A kind of anticorrosive durable plastic inspection chamber, the raw materials by weight portion meter (every part of 1kg) of described plastic inspection well comprises following component: shock-resistant Co-polypropylene 66 parts, Chlorinated Polypropylene III 22 parts, chlorinatedpolyethylene 10 parts, polyamide 6 part, HDPE 5 parts, terpolymer EP rubber 5 parts, compatilizer 6 parts, talcum powder 5 parts, nucleator 2 parts, organic modification montmonrillonite 6 parts, nano silicon 6 parts, lubricant 1 part, stablizer 1 part, filler 10 parts; Basalt fibre 3 parts;
Compatilizer be 67% by weight percentage and percentage of grafting be 6-7% maleic anhydride inoculated polypropylene, 31% percentage of grafting be that the polyolefin elastomer of 7-11% and the barium sulfate of 2% compositely form;
Nucleator is the polyoxymethylene of 92%, the nano titanium oxide of the surperficial epoxide group modification of 5% and 2% form dimethyldibenzylidenesorbitol is composite by mass percent.
The diameter of basalt fibre is 0.5-5 μm, organic modification montmonrillonite carries out orgnic-intercalation modification for adopting cetyl trimethylammonium bromide and octadecyl trimethyl ammonium chloride to sodium-based montmorillonite, the particle diameter of nano silicon is 30-100nm, lubricant is Zinic stearas, filler is titanium dioxide, and polymeric amide is nylon 101.
Carry out blending extrusion in the forcing machine of above raw material under 150-250 DEG C of condition, be then prepared inspection chamber.
Embodiment 3
A kind of anticorrosive durable plastic inspection chamber, the raw materials by weight portion meter (every part of 1kg) of described plastic inspection well comprises following component: shock-resistant Co-polypropylene 66 parts, Chlorinated Polypropylene III 20 parts, chlorinatedpolyethylene 11 parts, polymeric amide 7 parts, HDPE 4 parts, terpolymer EP rubber 7 parts, compatilizer 8 parts, talcum powder 4 parts, nucleator 2.5 parts, organic modification montmonrillonite 7 parts, nano silicon 3 parts, lubricant 2 parts, stablizer 2 parts, filler 1 part; Basalt fibre 6 parts,
Compatilizer be 65% by weight percentage and percentage of grafting be 6-7% maleic anhydride inoculated polypropylene, 32% percentage of grafting be that the polyolefin elastomer of 7-11% and the barium sulfate of 3% compositely form;
Nucleator is the polyoxymethylene of 88%, the nano titanium oxide of the surperficial epoxide group modification of 7% and 5% form dimethyldibenzylidenesorbitol is composite by mass percent.
The diameter of basalt fibre is 0.5-5 μm, organic modification montmonrillonite carries out orgnic-intercalation modification for adopting cetyl trimethylammonium bromide and octadecyl trimethyl ammonium chloride to sodium-based montmorillonite, the particle diameter of nano silicon is 30-100nm, lubricant is stearic acid, filler is light calcium carbonate, and polymeric amide is NYLON610.
Carry out blending extrusion in the forcing machine of above raw material under 150-250 DEG C of condition, be then prepared inspection chamber.
Embodiment 4
A kind of anticorrosive durable plastic inspection chamber, the raw materials by weight portion meter (every part of 1kg) of described plastic inspection well comprises following component: shock-resistant Co-polypropylene 65 parts, Chlorinated Polypropylene III 20 parts, chlorinatedpolyethylene 10 parts, polymeric amide 7 parts, HDPE 4 parts, terpolymer EP rubber 6 parts, compatilizer 5-8 part, talcum powder 4 parts, nucleator 3 parts, organic modification montmonrillonite 5 parts, nano silicon 4 parts, lubricant 3 parts, stablizer 0.5 part, filler 3 parts; Basalt fibre 8 parts, rare earth 3 parts;
Compatilizer be 66% by weight percentage and percentage of grafting be 6-7% maleic anhydride inoculated polypropylene, 31% percentage of grafting be that the polyolefin elastomer of 7-11% and the barium sulfate of 3% compositely form;
Nucleator is the polyoxymethylene of 90%, the nano titanium oxide of the surperficial epoxide group modification of 5% and 5% form dimethyldibenzylidenesorbitol is composite by mass percent.
The diameter of basalt fibre is 0.5-5 μm, rare earth is lanthanum trioxide, organic modification montmonrillonite carries out orgnic-intercalation modification for adopting cetyl trimethylammonium bromide and octadecyl trimethyl ammonium chloride to sodium-based montmorillonite, the particle diameter of nano silicon is 30-100nm, lubricant is Zinic stearas, filler is titanium dioxide, and polymeric amide is NYLON610.
Carry out blending extrusion in the forcing machine of above raw material under 150-250 DEG C of condition, be then prepared inspection chamber.
Embodiment 5
A kind of anticorrosive durable plastic inspection chamber, the raw materials by weight portion meter (every part of 1kg) of described plastic inspection well comprises following component: shock-resistant Co-polypropylene 65 parts, Chlorinated Polypropylene III 22 parts, chlorinatedpolyethylene 10 parts, polyamide 6 part, HDPE 4 parts, terpolymer EP rubber 5 parts, compatilizer 8 parts, talcum powder 4 parts, nucleator 3 parts, organic modification montmonrillonite 5 parts, nano silicon 3 parts, lubricant 3 parts, stablizer 0.5 part, filler 10 parts; Basalt fibre 3 parts, rare earth 1 part;
Compatilizer be 65% by weight percentage and percentage of grafting be 6-7% maleic anhydride inoculated polypropylene, 32% percentage of grafting be that the polyolefin elastomer of 7-11% and the barium sulfate of 3% compositely form;
Nucleator is the polyoxymethylene of 91%, the nano titanium oxide of the surperficial epoxide group modification of 7% and 2% form dimethyldibenzylidenesorbitol is composite by mass percent.
The diameter of basalt fibre is 0.5-5 μm, rare earth is cerium oxide, organic modification montmonrillonite carries out orgnic-intercalation modification for adopting cetyl trimethylammonium bromide and octadecyl trimethyl ammonium chloride to sodium-based montmorillonite, the particle diameter of nano silicon is 30-100nm, lubricant is calcium stearate, filler is light calcium carbonate, and polymeric amide is nylon 1010.
Carry out blending extrusion in the forcing machine of above raw material under 150-250 DEG C of condition, be then prepared inspection chamber.
Claims (8)
1. an anticorrosive durable plastic inspection chamber, is characterized in that, the raw materials by weight portion meter of described plastic inspection well comprises following component: shock-resistant Co-polypropylene 65-66 part, Chlorinated Polypropylene III 20-22 part, chlorinatedpolyethylene 10-11 part, polymeric amide 5-7 part, HDPE 4-5 part, terpolymer EP rubber 5-8 part, compatilizer 5-8 part, talcum powder 4-5 part, nucleator 2-3 part, organic modification montmonrillonite 5-7 part, nano silicon 3-6 part, lubricant 1-3 part, stablizer 0.5-2 part, filler 1-10 part; Compatilizer be 65-67% by weight percentage and percentage of grafting be 6-7% maleic anhydride inoculated polypropylene, to be that the barium sulfate of the polyolefin elastomer of 7-11% and 2-3% is composite form the percentage of grafting of 31-32%; Nucleator is the polyoxymethylene of 88-92%, the nano titanium oxide of the surperficial epoxide group modification of 5-7% and forming dimethyldibenzylidenesorbitol is composite of 2-5% by mass percent.
2. the anticorrosive durable plastic inspection chamber of one according to claim 1, is characterized in that, described raw material also comprises basalt fibre 3-8 part, and the diameter of basalt fibre is 0.5-5 μm.
3. the anticorrosive durable plastic inspection chamber of one according to claim 1, is characterized in that, described raw material also comprises rare earth 1-3 part, and rare earth is lanthanum trioxide, cerium oxide or Praseodymium trioxide.
4. according to the anticorrosive durable plastic inspection chamber of claim 1 one kind, it is characterized in that, described organic modification montmonrillonite carries out orgnic-intercalation modification for adopting cetyl trimethylammonium bromide and octadecyl trimethyl ammonium chloride to sodium-based montmorillonite.
5. the anticorrosive durable plastic inspection chamber of one according to claim 1, is characterized in that, the particle diameter of described nano silicon is 30-100nm.
6. the anticorrosive durable plastic inspection chamber of one according to claim 1, is characterized in that, lubricant is calcium stearate, Zinic stearas or stearic acid.
7. the anticorrosive durable plastic inspection chamber of one according to claim 1, is characterized in that, filler is light calcium carbonate or titanium dioxide.
8. the anticorrosive durable plastic inspection chamber of one according to claim 1, is characterized in that, described polymeric amide is nylon 6, nylon 1010 or NYLON610.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510103843.9A CN104761823A (en) | 2015-03-10 | 2015-03-10 | Corrosion-resistant durable plastic inspection well |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105860262A (en) * | 2016-04-27 | 2016-08-17 | 郭良来 | Erosion-resisting polypropylene sewage plastic inspection well |
| CN106905626A (en) * | 2017-03-17 | 2017-06-30 | 四会市恒星智能科技有限公司 | A kind of corrosion-resistant plastic inspection shaft and preparation method thereof |
| CN108358517A (en) * | 2018-05-11 | 2018-08-03 | 安徽砼宇特构科技有限公司 | A kind of antibacterial preventing water leakage inspection shaft and preparation method thereof |
| CN112391006A (en) * | 2020-11-12 | 2021-02-23 | 江苏金发科技新材料有限公司 | Wear-resistant self-lubricating polypropylene alloy composition and preparation method thereof |
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| CN104292689A (en) * | 2014-09-15 | 2015-01-21 | 合肥瑞瑶环保建材科技有限公司 | Composite reinforced plastic manhole |
| CN104356485A (en) * | 2014-11-25 | 2015-02-18 | 康泰塑胶科技集团有限公司 | Modified polyethylene environment-friendly plastic inspection well and preparation method thereof |
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2015
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| CN104292613A (en) * | 2014-09-15 | 2015-01-21 | 合肥瑞瑶环保建材科技有限公司 | Corrosion-resistant plastic manhole |
| CN104292689A (en) * | 2014-09-15 | 2015-01-21 | 合肥瑞瑶环保建材科技有限公司 | Composite reinforced plastic manhole |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105860262A (en) * | 2016-04-27 | 2016-08-17 | 郭良来 | Erosion-resisting polypropylene sewage plastic inspection well |
| CN106905626A (en) * | 2017-03-17 | 2017-06-30 | 四会市恒星智能科技有限公司 | A kind of corrosion-resistant plastic inspection shaft and preparation method thereof |
| CN108358517A (en) * | 2018-05-11 | 2018-08-03 | 安徽砼宇特构科技有限公司 | A kind of antibacterial preventing water leakage inspection shaft and preparation method thereof |
| CN112391006A (en) * | 2020-11-12 | 2021-02-23 | 江苏金发科技新材料有限公司 | Wear-resistant self-lubricating polypropylene alloy composition and preparation method thereof |
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