CN107501752A - A kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city - Google Patents

A kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city Download PDF

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Publication number
CN107501752A
CN107501752A CN201710728147.6A CN201710728147A CN107501752A CN 107501752 A CN107501752 A CN 107501752A CN 201710728147 A CN201710728147 A CN 201710728147A CN 107501752 A CN107501752 A CN 107501752A
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CN
China
Prior art keywords
temperature
area
ppr
preparation
sponge city
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Pending
Application number
CN201710728147.6A
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Chinese (zh)
Inventor
王志国
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Chengdu Sen Yu Hong Green Engineering Co Ltd
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Chengdu Sen Yu Hong Green Engineering Co Ltd
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Priority to CN201710728147.6A priority Critical patent/CN107501752A/en
Publication of CN107501752A publication Critical patent/CN107501752A/en
Pending legal-status Critical Current

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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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/24—Crystallisation aids
    • C08L2205/242—Beta spherulite nucleating agents

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

It is main to include assigning the preferable anti-microbial property of tubing, mechanical strength by adding antiseptic, glass, beta nucleater in the base the invention discloses a kind of preparation method of the plastic pipe of the corrosion resistant antibiotic for sponge city；By extruder melt blending and by shaping, cool down, draw, wind, PPR pipe being prepared after technology of the package.The PPR pipe is a kind of inexpensive environmentally friendly tubing, largely can be applied in sponge city；The mechanical property of beta nucleater and glass collaboration the balance PPR pipe, balances PPR toughness, and improve PPR corrosion resistances while improving PPR mechanical strengths；The antiseptic can effectively improve PPR antibiotic property, avoid the secondary pollution during sponge city water cycle.Tubing prepared by the present invention has preferable antibiotic property, and mechanical strength is preferable, and corrosion resistance is preferable, and preparation method of the invention is simple to operate.

Description

A kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city
Technical field
The invention belongs to tubing technical field, and in particular to a kind of plastic pipe of corrosion resistant antibiotic for sponge city Preparation method.
Background technology
The problems such as flood ponding, River ecological degeneration, water pollution aggravation, often occurs for some areas of China.Sponge city City can keep rainwater here just as one piece of sponge, allow water circulation use.Sponge city, it is new generation of city storm water man- agement Concept, refer to that natural calamity that city is brought in adaptation environmental change and reply rainwater etc. has good elasticity.Randomly COPP tubing abbreviation PPR pipe, it is that the third generation after HOPP, Polypropylene Of Raised Temperature Resistance Pipe material is new poly- Propylene tubing.PPR pipe has excellent impact resistance, corrosion-resistant and resistant to elevated temperatures performance, good pressure-resistant, insulation and ageing-resistant The features such as performance and health nontoxic, easy for installation.
The density of the PPR pipe is 0.89-0.96g/cm3, tall and big more than the 5MPa of compression resistance proof strength, there is quality Gently, specific strength is high.The fluid resistance of the PPR pipe is small, and coefficient of friction is only 0.007, beneficial to transmission liquid.The PPR pipe Material has a preferable heat sealability energy, and tubing and pipe fitting can use hot-melt adhesive paste, and hot-melt adhesive paste is by the junction of tubing and pipe fitting Fuse as an entirety, no fine gap, therefore be not in the phenomenon for connecting leak, pipeline cost substantially reduces.The PPR It is tubing recoverable, pollution-free, during production, construction, use, to environment without any pollution, waste material recoverable.
The PPR pipe be used for sponge city can meet the requirement of water delivery, while realize it is sustainable recycle repeatedly, It is a kind of inexpensive environmentally friendly tubing.But in sponge city, aqueduct often occur in use one layer it is micro- Biological growth layer, secondary pollution is carried out to water quality, in order to preferably realize water circulation, it is necessary to a kind of pipe of corrosion resistant antibacterial Material.
The content of the invention
The invention provides a kind of preparation method of the plastic pipe of the corrosion resistant antibiotic for sponge city, using screw rod Extrusion mechanism manufacturing antibacterial masterbatch, then by antibacterial plastic concentrate and PPR matrixes and additive melt blending in banbury, the glass Orientation it is consistent, be advantageous to improve PPR pipe mechanical property, so as to which the corrosion resistant PPR pipe of antibacterial be prepared.
The present invention is achieved through the following technical solutions：A kind of plastic pipe of corrosion resistant antibiotic for sponge city Preparation method, mainly include the following steps that：
Step S1：Using coupling agent treatment antiseptic；
Step S2：After the antiseptic prepared in 10wt%-15wt% PPR matrixes and step S1 is fully blended uniformly at a high speed, add Enter and masterbatch is prepared in double screw extruder；
Step S3：By the masterbatch prepared in step S2 and beta nucleater, remaining PPR matrixes melt blending in banbury, obtain Mixing material；
Step S4：The mixing material prepared in step S3 is added into extruding pelletization in double screw extruder, roving glass fiber is by extruder Glass adds mouth and added, standby after extrusion pellet is dried；
Step S5：Added when the pellet being prepared in step S4 is cooled into 45-60 DEG C double screw extruder melt blending and Shaping, PPR pipe is prepared after supercooling, traction, winding, technology of the package.
Antiseptic is added with the tubing, the antiseptic is handled with coupling agent, can strengthen antiseptic and PPR The compatibility of matrix, ensure that antiseptic is well mixed with matrix, the homogeneous tubing of performance is prepared.The antiseptic is existing Technology and be not the improvement of the present invention, therefore is repeated no more.
The coupling agent can improve the compatibility of resin and inorganic filler, and it is scattered in resin body to improve nano-powder Property, the homogeneous material of performance is prepared.The coupling agent is prior art and is not the improvement of the present invention, therefore no longer goes to live in the household of one's in-laws on getting married State.
The coupling agent is a kind of material with heterogeneity functional group, and the maximum feature of its molecular structure is in molecule Containing two different groups of chemical property, one is close inorganic matter group, good with the compatibility of inorganic nano material；Another It is organophilic group, it is good with resin compatible.The coupling agent can increase the compatibility of antiseptic and PPR matrixes, simultaneously The compatibility of glass and PPR matrixes can be increased, so as to which the homogeneous PPR composites of performance be prepared.
In order to preferably realize the present invention, further, glass is compounded with the tubing.The glass has good Acid-alkali-corrosive-resisting performance, the glass add in PPR materials the mechanical property that can strengthen PPR materials, thermomechanical stability, resistance to Aging and outstanding processing characteristics.
The fiberglass reinforced PPR composite properties approach with ABS, and PPR uses its intensity, modulus and resistance to after fiberglass reinforced Hot property is all improved comprehensively, but is reduction of PPR impact property, elongation at break and notch impact strength.In order to more The good mechanical strength for realizing enhancing PPR materials and the toughness for maintaining PPR materials, improve PPR toughness using beta nucleater.
Polypropylene belongs to half crystal formation resin, and its crystallinity, the structure of crystal formation and crystal and form have key to its performance Effect.There are alpha-crystal form and beta crystal in polyacrylic crystallization, wherein α crystalline substances are most stable, can be obtained under general processing conditions brilliant containing α The polypropylene of type；And β crystalline substances are metastable state, it is not easy to obtain.α crystalline substances have the function that increase rigidity, improve load deformation temperature, β Crystalline substance can improve polyacrylic shock resistance and load deformation temperature.The beta nucleater, which is added in PPR, makes α crystalline substances be converted into β Crystalline substance, strengthen PPR toughness, prevent PPR brittle failures from ftractureing.
In order to preferably realize the present invention, further, the step S1 is mainly included the following steps that：
Coupling agent is configured to solution；Antiseptic is added in coupling agent solution and stirred, mixing speed 200-500r/ Min, mixing time 0.5h-4h, it is standby after 40-70 DEG C of drying in an oven.
In order to preferably realize the present invention, further, the technological parameter of double screw extruder is in the step S2：One Area's temperature is 180-190 DEG C, and two area's temperature are 195-205 DEG C, and three area's temperature are 200-215 DEG C, and four area's temperature are 210-220 DEG C, five area's temperature are 205-215 DEG C, and six area's temperature are 200 DEG C.
In order to preferably realize the present invention, further, in the step S3 in banbury melt blending 5-10min, Rotating speed is 35-55r/min, and blending temperature is 175-185 DEG C.
In order to preferably realize the present invention, further, the technological parameter of double screw extruder is in the step S4：One Area's temperature is 185-200 DEG C, and two area's temperature are 190-210 DEG C, and three area's temperature are 205-225 DEG C, and four area's temperature are 205-225 DEG C, five area's temperature are 205-225 DEG C, and six area's temperature are 200 DEG C.
In order to preferably realize the present invention, further, area's temperature of double screw extruder is in the step S5 180-190 DEG C, two area's temperature are 170-180 DEG C, and three area's temperature are 160-170 DEG C；The tube extrusion linear velocity is 20-30m/ min。
Beneficial effects of the present invention：
（1）Using matrixes of the PPR as tubing, there is excellent impact resistance, corrosion-resistant and resistant to elevated temperatures performance, good is resistance to The features such as pressure, insulation and ageing-resistant performance and health nontoxic, easy for installation；
（2）Using fiberglass reinforced PPR matrix mechanical properties, while improve the decay resistance of PPR pipe；
（3）Improve the toughness of PPR matrixes using beta nucleater, there is synergy together with glass, strengthen PPR mechanical strength, The toughness of PPR matrixes is kept simultaneously；
（4）Using coupling agent treatment antiseptic, the compatibility of antiseptic and PPR matrixes is effectively improved, processability is homogeneous to be resisted Bacterium PPR pipe；
（5）The homogeneous PPR pipe of performance can be prepared in the preparation method of the present invention, optimize PPR processing technologys, be prepared Compatibility it is good, the preferable PPR pipe of mechanical property.
Brief description of the drawings
Nothing.
Embodiment
Embodiment 1：
A kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city, is mainly included the following steps that：
Coupling agent treatment antiseptic is first used, coupling agent is configured to solution, antiseptic is added and stirs, mixing speed is 300r/min, mixing time 2h, it is then standby after 60 DEG C of drying in an oven.
After 15wt% PPR matrixes and the antiseptic of coupling agent treatment are fully blended uniformly at a high speed, twin-screw extrusion is added Masterbatch is prepared in machine, the technological parameter of the double screw extruder is：One area's temperature is 180 DEG C, and two area's temperature are 190 DEG C, three area's temperature are 200 DEG C, and four area's temperature are 210 DEG C, and five area's temperature are 210 DEG C, and six area's temperature are 200 DEG C；By the mother of preparation Material and beta nucleater, remaining PPR matrixes melt blending in banbury, obtain mixing material, the temperature of wherein melt blending is 180 DEG C, 6min, rotating speed 40r/min is blended；Then extruding pelletization in double screw extruder is added, roving glass fiber is by extruder glass Fibre adds mouth and added, and standby after extrusion pellet is dried, the technological parameter of the double screw extruder is：One area's temperature is 185 DEG C, two area's temperature are 190 DEG C, and three area's temperature are 210 DEG C, and four area's temperature are 210 DEG C, and five area's temperature are 210 DEG C, and six area's temperature are 200℃；Double screw extruder melt blending and shaping are added after pellet finally is cooled into 50 DEG C, PPR is prepared after cooling Tubing, area's temperature of the double screw extruder is 180 DEG C, and two area's temperature are 175 DEG C, and three area's temperature are 170 DEG C；The pipe Material extrusion linear speed is 25m/mim.
The antibiotic property method of testing of the tubing is tested by QB/T 2591-2003A, and it is Escherichia coli ATCC to detect with bacterium 25922 and Staphylococcus aureus ATCC 6538；Using the mechanical property of cupping machine test tubing；Using Charpy Impact Testing machine tests the impact property of tubing；Acid-alkali-corrosive-resisting performance test selection standard is GB/T 11547-2008：From 98% As tested media, test temperature is 25 ± 2 DEG C by the concentrated sulfuric acid and 40% dense NaOH, is one week from the cycle.
Drawn by experiment test, the tubing has preferable antibiotic property to Escherichia coli and staphylococcus aureus Energy；Pure PPR tensile strength is 21.54MPa, and the tensile strength of the tubing improves 15wt%, and fracture productivity ratio is hardly Become；The acidproof alkali content of the tubing is higher than 90%, and acid-proof alkaline is preferable.Comprehensive analysis, which obtains tubing, has preferable antibiotic property, Once strong and toughness is constant for mechanical strength, and resistance to acids and bases is preferable.
Embodiment 2：
A kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city, is mainly included the following steps that：
Coupling agent treatment antiseptic is first used, coupling agent is configured to solution, antiseptic is added and stirs, mixing speed is 400r/min, mixing time 2h, it is then standby after 60 DEG C of drying in an oven.
After 10wt% PPR matrixes and the antiseptic of coupling agent treatment are fully blended uniformly at a high speed, twin-screw extrusion is added Masterbatch is prepared in machine, the technological parameter of the double screw extruder is：One area's temperature is 180 DEG C, and two area's temperature are 190 DEG C, three area's temperature are 200 DEG C, and four area's temperature are 210 DEG C, and five area's temperature are 210 DEG C, and six area's temperature are 200 DEG C；By the mother of preparation Material and beta nucleater, remaining PPR matrixes melt blending in banbury, obtain mixing material, the temperature of wherein melt blending is 170 DEG C, 6min, rotating speed 50r/min is blended；Then extruding pelletization in double screw extruder is added, roving glass fiber is by extruder glass Fibre adds mouth and added, and standby after extrusion pellet is dried, the technological parameter of the double screw extruder is：One area's temperature is 185 DEG C, two area's temperature are 190 DEG C, and three area's temperature are 210 DEG C, and four area's temperature are 210 DEG C, and five area's temperature are 210 DEG C, and six area's temperature are 200℃；Double screw extruder melt blending and shaping are added after pellet finally is cooled into 50 DEG C, PPR is prepared after cooling Tubing, area's temperature of the double screw extruder is 180 DEG C, and two area's temperature are 175 DEG C, and three area's temperature are 170 DEG C；The pipe Material extrusion linear speed is 20m/mim.
The method of testing of the tubing repeats no more with embodiment 1.
Drawn by experiment test, the tubing has antibiotic property to Escherichia coli and staphylococcus aureus, passes through Experiment test can show that the anti-microbial property of the tubing increases with the increase of antiseptic dosage；Pure PPR tensile strength is 21.54MPa, the tensile strength of the tubing is 48.1MPa, and fracture productivity ratio reduces, the mechanical strength increase of the tubing, but It is degraded toughness, being primarily due to the content of glass increases the mechanical property enhancing for causing tubing；The acidproof alkali content of the tubing Higher than 95%, acid-proof alkaline is preferable；With the increase of glass, the corrosion resistance increase of tubing.Comprehensive analysis, which obtains tubing, to be had Preferable antibiotic property, mechanical strength is preferable, while elongation at break reduces compared to pure PPR, and resistance to acids and bases is preferable.
It is described above, be only presently preferred embodiments of the present invention, any formal limitation not done to the present invention, it is every according to Any simply modification, the equivalent variations made according to the technical spirit of the present invention to above example, each fall within the protection of the present invention Within the scope of.

Claims (6)

  1. A kind of 1. preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city, it is characterised in that it is main include with Lower step：
    Step S1：Using coupling agent treatment antiseptic；
    Step S2：After the antiseptic prepared in 10wt%-15wt% PPR matrixes and step S1 is fully blended uniformly at a high speed, add Enter and masterbatch is prepared in double screw extruder；
    Step S3：By the masterbatch prepared in step S2 and beta nucleater, remaining PPR matrixes melt blending in banbury, obtain Mixing material；
    Step S4：The mixing material prepared in step S3 is added into extruding pelletization in double screw extruder, roving glass fiber is by extruder Glass adds mouth and added, standby after extrusion pellet is dried；
    Step S5：Double screw extruder melt blending, warp are added when the pellet being prepared in step S4 is cooled into 45-60 DEG C PPR pipe is prepared after crossing setting, cooling, traction, winding, technology of the package.
  2. 2. a kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city according to claim 1, its It is characterised by, the step S1 is mainly included the following steps that：Coupling agent is configured to solution, antiseptic is then added to solution In stir, mixing speed 200-500r/min, mixing time 0.5h-4h, in an oven 40-70 DEG C drying standby With.
  3. 3. a kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city according to claim 1, its It is characterised by, the technological parameter of double screw extruder is in the step S2：One area's temperature is 180-190 DEG C, and two area's temperature are 195-205 DEG C, three area's temperature are 200-215 DEG C, and four area's temperature are 210-220 DEG C, and five area's temperature are 205-215 DEG C, six area's temperature Spend for 200 DEG C.
  4. 4. a kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city according to claim 1, its It is characterised by, melt blending 5-10min, rotating speed 35-55r/min, blending temperature are in banbury in the step S3 175-185℃。
  5. 5. a kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city according to claim 1, its It is characterised by, the technological parameter of double screw extruder is in the step S4：One area's temperature is 185-200 DEG C, and two area's temperature are 190-210 DEG C, three area's temperature are 205-225 DEG C, and four area's temperature are 205-225 DEG C, and five area's temperature are 205-225 DEG C, six area's temperature Spend for 200 DEG C.
  6. 6. a kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city according to claim 1, its Be characterised by, in the step S5 area's temperature of double screw extruder be 180-190 DEG C, two area's temperature be 170-180 DEG C, three Area's temperature is 160-170 DEG C；The tube extrusion linear velocity is 20-30m/min.
CN201710728147.6A 2017-08-23 2017-08-23 A kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city Pending CN107501752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710728147.6A CN107501752A (en) 2017-08-23 2017-08-23 A kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710728147.6A CN107501752A (en) 2017-08-23 2017-08-23 A kind of preparation method of the plastic pipe of corrosion resistant antibiotic for sponge city

Publications (1)

Publication Number Publication Date
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Country Status (1)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102226028A (en) * 2011-04-27 2011-10-26 湖北福尔家家高新科技有限公司 Self-cleaning antibacterial beta-crystal form PP-R cold-hot water pipe material and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102226028A (en) * 2011-04-27 2011-10-26 湖北福尔家家高新科技有限公司 Self-cleaning antibacterial beta-crystal form PP-R cold-hot water pipe material and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
车剑飞等编: "《复合材料及其工程应用》", 31 August 2006, 机械工业出版社 *

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Application publication date: 20171222

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