CN113527820B - Toughened and modified polyvinyl chloride power communication pipe and preparation method thereof - Google Patents
Toughened and modified polyvinyl chloride power communication pipe and preparation method thereof Download PDFInfo
- Publication number
- CN113527820B CN113527820B CN202110713001.0A CN202110713001A CN113527820B CN 113527820 B CN113527820 B CN 113527820B CN 202110713001 A CN202110713001 A CN 202110713001A CN 113527820 B CN113527820 B CN 113527820B
- Authority
- CN
- China
- Prior art keywords
- parts
- polyvinyl chloride
- stirring
- modified
- power communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 83
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 83
- 238000004891 communication Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 41
- 239000012745 toughening agent Substances 0.000 claims abstract description 36
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 35
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 33
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 33
- 239000007822 coupling agent Substances 0.000 claims abstract description 20
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 18
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000002270 dispersing agent Substances 0.000 claims abstract description 13
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 43
- 238000003756 stirring Methods 0.000 claims description 43
- 239000002131 composite material Substances 0.000 claims description 24
- 239000002923 metal particle Substances 0.000 claims description 17
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- -1 polypropylene Polymers 0.000 claims description 15
- 239000004743 Polypropylene Substances 0.000 claims description 13
- 229920001155 polypropylene Polymers 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 11
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims description 10
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical group [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 9
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 9
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical group [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000003381 stabilizer Substances 0.000 claims description 9
- 229910052882 wollastonite Inorganic materials 0.000 claims description 9
- 239000010456 wollastonite Substances 0.000 claims description 9
- 230000003449 preventive effect Effects 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 6
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 238000000967 suction filtration Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 238000005498 polishing Methods 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 239000012065 filter cake Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 229920009204 Methacrylate-butadiene-styrene Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000001179 sorption measurement 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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- 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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of power communication pipes, in particular to a toughened and modified polyvinyl chloride power communication pipe and a preparation method thereof, wherein the toughened and modified polyvinyl chloride power communication pipe comprises the following raw materials in parts by weight: 90-100 parts of polyvinyl chloride resin, 5-10 parts of low-density polyethylene, 2-4 parts of modified toughening agent, 3-5 parts of heat stabilizer, 2-5 parts of dispersant, 1-3 parts of antioxidant, 5-15 parts of filler and 0.1-1 part of coupling agent. The invention aims to provide the power communication pipe with higher toughness, tensile strength and tear strength and good radiation protection and shielding properties, so that the power communication pipe can be used under complicated conditions.
Description
Technical Field
The invention relates to the technical field of power communication pipes, in particular to a toughened and modified polyvinyl chloride power communication pipe and a preparation method thereof.
Background
The communication pipe network is the most important information technology industry in national economic development, and with the continuous updating of the communication pipe network, the requirements on the quality, safety and environment of products are improved, and more plastic pipes for communication protection are increased because the plastic pipes are transmitted in a buried and underground pipe gallery mode. The polyvinyl chloride structural unit contains lateral group chlorine atoms, so that the molecular chain rigidity is higher, the polyvinyl chloride toughness is low, the impact resistance is poor, and the polyvinyl chloride pipe is easy to brittle fracture in the processes of storage, transportation, installation and use. In order to improve the toughness of polyvinyl chloride materials, Styrene Butadiene Rubber (SBR) and chlorinated polyethylene are generally used as toughening agents, however, the toughening agents have larger polarity difference with a polyvinyl chloride molecular chain, so that the toughening effect can be achieved by a large amount, and the loss of the tensile strength and the reduction of the thermal deformation resistance of the modified polyvinyl chloride resin can be caused. Meanwhile, the molecular chain of the styrene butadiene rubber contains double structures, benzene rings and other structures, which can cause the weather resistance of the modified polyvinyl chloride resin to be poor and shorten the service life.
The publication numbers are: the patent of CN105837996B discloses a toughened and modified PVC plastic pipe and a preparation method thereof, wherein the PVC pipe comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 15-35 parts of high cis-butadiene rubber, 0.5-1.5 parts of coupling agent and 0.2-0.6 part of inorganic filler; the preparation method of the polyvinyl chloride pipe comprises the following steps: putting the polyvinyl chloride resin in parts by weight into a mixing roll, heating to 45-50 ℃, and mixing for 1-3h under the condition that the rotating speed is 60-80 r/min; the high cis-butadiene rubber is also put into a mixing roll by weight and mixed for 2 to 4 hours at the temperature of 50 to 55 ℃ and the rotating speed of 200 to 350 r/min; reducing the rotating speed of the mixing roll to 60 r/min-80 r/min, putting the coupling agent and the inorganic filler in parts by weight into the mixing roll, increasing the rotating speed to 350 r/min-600 r/min, and mixing and melting for 1.5 h-3 h to obtain a uniformly mixed molten raw material; and transferring the uniformly mixed molten raw materials to a hopper of a screw extruder, cooling to 40-45 ℃, discharging, forming a continuous body at a die of a machine head, extruding the continuous body outside the machine by using the screw, and cooling and solidifying to obtain the toughened modified PVC plastic pipe.
According to the record of the patent application document, the elasticity, the plasticity and the temperature resistance of the polyvinyl chloride plastic pipe are comprehensively improved, but through further test tests, the tensile strength is 45Mpa at normal temperature, 9.3Mpa at minus 70 ℃, and 8Kpa at normal temperature, so that the normal use of the power communication pipe under complicated conditions cannot be met.
Disclosure of Invention
In view of the above, the present invention provides a toughened and modified polyvinyl chloride power communication pipe and a preparation method thereof, so that the power communication pipe has high toughness, tensile strength and tear strength, and good radiation protection and shielding properties, and can be used under complicated conditions.
The invention solves the technical problems by the following technical means:
a toughened and modified polyvinyl chloride power communication pipe comprises the following raw materials in parts by weight: 90-100 parts of polyvinyl chloride resin, 5-10 parts of low-density polyethylene, 2-4 parts of modified toughening agent, 3-5 parts of heat stabilizer, 2-5 parts of dispersing agent, 1-3 parts of antioxidant, 5-15 parts of filler and 0.1-1 part of coupling agent.
Further, the polyethylene pipe comprises 95 parts of polyvinyl chloride resin, 8 parts of low-density polyethylene, 3 parts of modified toughening agent, 4 parts of heat stabilizer, 3 parts of dispersant, 2 parts of antioxidant, 10 parts of filler and 0.3 part of coupling agent by mass.
Further, the heat stabilizer is a calcium zinc stabilizer, the dispersing agent is maleic anhydride grafted polypropylene, the antioxidant is a mixture of antioxidant 164 and antioxidant BHT, and the coupling agent is a silane coupling agent.
The maleic anhydride grafted polypropylene can be used as a bridge for improving the adhesion and compatibility of polar materials and non-polar materials, and can greatly improve the affinity of the filler and the dispersibility of the filler, so that the dispersion of the filler in a system can be effectively enhanced, and the tensile strength and the impact strength are improved. The antioxidant 164 and the antioxidant BHT are mixed for use, so that the oxidation resistance of the pipe can be synergistically enhanced.
Further, the filler is a composite filler formed by diatomite and nano metal particles, and the preparation method of the composite filler comprises the following steps: uniformly mixing copper-nickel alloy powder and iron-nickel alloy powder, placing the mixture in a ball mill for polishing to obtain a nano metal particle mixture, placing diatomite in deionized water, uniformly stirring, adding the nano metal particle mixture, performing ultrasonic oscillation for 3-5H, adding a titanate coupling agent in the ultrasonic oscillation process, performing suction filtration, drying and grinding after ultrasonic oscillation is finished to obtain the composite filler.
The diatomite has the characteristics of neutral pH value, no toxicity, unique pore structure, light weight, softness, large porosity, strong adsorption performance, stable chemical property, wear resistance, heat resistance and the like, so that when the diatomite is used as a filling agent, the extensibility, the impact strength, the tensile strength and the tearing strength of a pipe can be enhanced. The composite filler prepared by the method has good chemical stability, wear resistance, heat resistance and electromagnetic shielding performance, and can further enhance the impact strength and tear strength of a pipe.
Further, the modified toughening agent is a mixture of random polypropylene, MBS and wollastonite, and the preparation method of the modified toughening agent comprises the following steps: and (2) placing the random polypropylene and the MBS resin into a mixer, stirring for 2-4H at the rotating speed of 300r/min at the temperature of 70-90 ℃, adding the wollastonite powder and the silane coupling agent after uniformly stirring, stirring for 3-5H at the rotating speed of 800r/min, transferring into an extruder after stirring, extruding, granulating and cooling to obtain the modified toughening agent master batch.
The random polypropylene has high heat resistance, good toughness and chemical corrosion resistance, but has the defects of poor low-temperature impact resistance and easy aging. The MBS resin has a typical core-shell structure, the solubility parameter of the MBS resin is similar to that of PVC, the thermodynamic compatibility of the MBS resin and the PVC is good, the random polypropylene has high impact strength at low temperature through the combination of the MBS resin and the random polypropylene, and wollastonite and a silane coupling agent are added to crosslink the MBS resin and the random polypropylene, so that the prepared toughening agent master batch has excellent toughness, good impact resistance and wet skid resistance, and the pipe can be normally used under complex conditions.
Further, the particle size of the modified toughening agent master batch is 4-8 mm.
Further, the polyvinyl chloride pipe also comprises 1-2 parts of a mildew inhibitor, and the mildew inhibitor is copper sulfate.
The polyvinyl chloride power communication pipe is buried underground, the environment is dark and humid, and the addition of the mildew preventive can prevent the polyvinyl chloride pipe from mildewing to influence the service life of the polyvinyl chloride pipe.
The invention also discloses a preparation method of the polyvinyl chloride power communication tube, which comprises the following steps:
s1: placing the modified toughening agent master batch into a mixer, and stirring for 1-3H at the rotation speed of 100-200r/min at the temperature of 80-100 ℃;
s2: putting polyvinyl chloride resin and low-density polyethylene into a mixer, continuously stirring for 2-5H at the rotation speed of 250-400r/min under the condition of 100-120 ℃, adding a composite filler, maleic anhydride grafted polypropylene, a silane coupling agent, a mixture of an antioxidant 164 and an antioxidant BHT, a calcium-zinc stabilizer and copper sulfate after stirring, and stirring for 0.5-1H at the rotation speed of 800-1000r/min under the condition of 120-140 ℃ to obtain a molten blend;
s3: and (4) transferring the molten blend obtained in the step S2 into a screw extruder, setting the temperature of a host machine at 160-180 ℃, setting the temperature of a die at 45-60 ℃, and performing extrusion molding, shaping and cooling to obtain the polyvinyl chloride pipe.
The invention has the beneficial effects that:
1. according to the invention, the low-density polyethylene is added into the polyvinyl chloride, so that the toughness of the polyvinyl chloride pipe can be enhanced preliminarily, the performance of the pipe can be improved by adding the heat stabilizer, the dispersant, the antioxidant and the like, and the tensile strength, the impact strength, the tearing strength and the electromagnetic shielding performance of the pipe can be improved by adding the composite filler formed by the diatomite and the nano metal particles, so that the prepared polyvinyl chloride pipe can be normally used as a power communication pipe in a complex environment;
2. the method is simple, the modified random polypropylene has good toughness, impact resistance and wet skid resistance, and the toughness and impact strength of the polyvinyl chloride pipe are further enhanced.
Detailed Description
The invention is illustrated in detail below by means of specific examples:
example 1 preparation of composite Filler
The composite filler comprises the following raw materials: diatomite, copper-nickel alloy powder, iron-nickel alloy powder and titanate coupling agent.
A1: uniformly mixing 10 parts by mass of copper-nickel alloy powder and 18 parts by mass of iron-nickel alloy powder, placing the mixture in a ball mill after uniform mixing, rotating at the speed of 800r/min to obtain a nano metal particle mixture, and testing by an instrument to obtain the nano metal particle mixture with the particle size of 19 nm;
a2: placing 8 parts by mass of high-purity diatomite powder into deionized water, stirring to form a suspension, uniformly stirring, adding 14 parts by mass of a nano metal particle mixture, oscillating ultrasonic waves at the frequency of 30KHZ for 30min, fully dispersing nano metal particles, then adding 1.6 parts by mass of a titanate coupling agent, continuing oscillating for 5H, and after the ultrasonic waves are finished, removing the deionized water through suction filtration to obtain a filter cake with the nano metal particles loaded in the diatomite;
a3: and (3) placing the filter cake in an oven at the temperature of 80 ℃, drying, taking out after drying, and placing the filter cake in a grinding machine for grinding to obtain the composite filler.
Example 2 preparation of composite Filler
The composite filler comprises the following raw materials: diatomite, copper-nickel alloy powder, iron-nickel alloy powder and titanate coupling agent.
A1: uniformly mixing 20 parts by mass of copper-nickel alloy powder and 35 parts by mass of iron-nickel alloy powder, placing the mixture in a ball mill after uniform mixing, rotating at the speed of 1000r/min to obtain a nano metal particle mixture, and testing by an instrument to obtain the nano metal particle mixture with the particle size of 10 nm;
a2: placing 15 parts by mass of high-purity diatomite powder into deionized water, stirring to form a suspension, uniformly stirring, adding 30 parts by mass of a nano metal particle mixture, oscillating ultrasonic waves for 45min at the frequency of 40KHZ, fully dispersing nano metal particles, then adding 3 parts by mass of a titanate coupling agent, continuing oscillating for 3H, and after the ultrasonic waves are finished, removing the deionized water through suction filtration to obtain a filter cake with nano metal particles loaded in the diatomite;
a3: and (3) placing the filter cake in an oven at the temperature of 80 ℃, drying, taking out after drying, and placing the filter cake in a grinding machine for grinding to obtain the composite filler.
Example 3 preparation of modified toughening agent
The modified toughening agent comprises the following raw materials: random polypropylene (APP), MBS resin, wollastonite and silane coupling agent.
B1: placing 15 parts by mass of random polypropylene into a mixer, uniformly stirring, adding 4 parts by mass of MBS resin, and stirring for 2H at 90 ℃ at a rotating speed of 300r/min to obtain a mixed material;
b2: adding 2.5 parts by mass of high-purity wollastonite into the mixed material, continuously stirring for 30min, adding 0.55 part by mass of silane coupling agent, stirring for 3H at the rotating speed of 800r/min, and obtaining a molten mixture after stirring;
b3: and transferring the molten mixture into an extruder, setting the head temperature at 150-.
Example 4 preparation of modified toughening agent
The modified toughening agent comprises the following raw materials: random polypropylene (APP), MBS resin, wollastonite and silane coupling agent.
B1: placing 20 parts by mass of random polypropylene into a mixer, uniformly stirring, adding 6 parts by mass of MBS resin, and stirring at 70 ℃ for 4H at the rotating speed of 300r/min to obtain a mixed material;
b2: adding 4 parts by mass of high-purity wollastonite into the mixed material, continuously stirring for 50min, adding 0.9 part by mass of silane coupling agent, stirring for 5H at the rotating speed of 800r/min, and obtaining a molten mixture after stirring;
b3: and transferring the molten mixture into an extruder, setting the head temperature at 150-.
Example 5 preparation of a polyvinyl chloride Electrical communications tube
The polyvinyl chloride power communication pipe comprises the following raw materials: polyvinyl chloride resin, low-density polyethylene, a modified toughening agent, a heat stabilizer, a dispersing agent, an antioxidant, a filling agent, a mildew preventive and a coupling agent.
S1: 2 parts by mass of modified toughening agent master batch are placed in a mixer, and stirred for 3H at the rotating speed of 100r/min at the temperature of 80 ℃;
s2: putting 90 parts by mass of polyvinyl chloride resin and 5 parts by mass of low-density polyethylene into a mixer, continuously stirring for 5H at the rotating speed of 250r/min at the temperature of 100 ℃, adding 5 parts by mass of composite filler, 2 parts by mass of maleic anhydride grafted polypropylene, 0.1 part by mass of silane coupling agent, 1 part by mass of mixture of antioxidant 164 and antioxidant BHT, 3 parts by mass of calcium-zinc stabilizer and 1 part by mass of copper sulfate, and stirring for 1H at the rotating speed of 800r/min at the temperature of 120 ℃ to obtain a molten blend;
s3: and (4) transferring the molten blend obtained in the step S2 into a screw extruder, setting the temperature of a host machine to be 165 ℃ and the temperature of a die to be 45 ℃, and performing extrusion molding, shaping and cooling to obtain the polyvinyl chloride pipe.
Example 6 preparation of polyvinyl chloride Power communication pipe
The polyvinyl chloride power communication pipe comprises the following raw materials: polyvinyl chloride resin, low-density polyethylene, a modified toughening agent, a heat stabilizer, a dispersing agent, an antioxidant, a filling agent, a mildew preventive and a coupling agent.
S1: 3 parts by mass of modified toughening agent master batch are placed in a mixer, and stirred for 2H at the rotating speed of 150r/min at the temperature of 90 ℃;
s2: putting 95 parts by mass of polyvinyl chloride resin and 8 parts by mass of low-density polyethylene into a mixer, continuously stirring for 3.5H at the temperature of 110 ℃ at the rotating speed of 300r/min, adding 10 parts by mass of composite filler, 3 parts by mass of maleic anhydride grafted polypropylene, 0.3 part by mass of silane coupling agent, 2 parts by mass of a mixture of antioxidant 164 and antioxidant BHT, 4 parts by mass of calcium-zinc stabilizer and 1.5 parts by mass of copper sulfate, and stirring for 45min at the temperature of 130 ℃ at the rotating speed of 900r/min to obtain a molten blend;
s3: and (4) transferring the molten blend obtained in the step S2 into a screw extruder, setting the temperature of a host machine to be 170 ℃ and the temperature of a die to be 50 ℃, and performing extrusion molding, shaping and cooling to obtain the polyvinyl chloride pipe.
Example 7 preparation of polyvinyl chloride electric communication pipe
The polyvinyl chloride power communication pipe comprises the following raw materials: polyvinyl chloride resin, low-density polyethylene, a modified toughening agent, a heat stabilizer, a dispersing agent, an antioxidant, a filling agent, a mildew preventive and a coupling agent.
S1: 4 parts by mass of modified toughening agent master batch is placed in a mixer and stirred for 1H at the rotating speed of 200r/min at the temperature of 100 ℃;
s2: putting 100 parts by mass of polyvinyl chloride resin and 10 parts by mass of low-density polyethylene into a mixer, continuously stirring for 2H at the rotation speed of 400r/min at the temperature of 120 ℃, adding 15 parts by mass of composite filler, 5 parts by mass of maleic anhydride grafted polypropylene, 1 part by mass of silane coupling agent, 3 parts by mass of a mixture of antioxidant 164 and antioxidant BHT, 5 parts by mass of calcium-zinc stabilizer and 2 parts by mass of copper sulfate, and stirring for 30min at the rotation speed of 1000r/min at the temperature of 140 ℃ to obtain a molten blend;
s3: and (4) transferring the melt blend obtained in the step S2 into a screw extruder, setting the temperature of a main machine to be 175 ℃ and the temperature of a die to be 60 ℃, and performing extrusion molding, sizing and cooling to obtain the polyvinyl chloride pipe.
Example 8 (comparative example one), preparation of a polyvinyl chloride electric power communication tube
The polyvinyl chloride power communication pipe comprises the following raw materials: polyvinyl chloride resin, low-density polyethylene, MBS resin, a heat stabilizer, a dispersant, an antioxidant, a filler, a mildew preventive and a coupling agent.
S1: putting 3 parts by mass of MBS resin into a mixer, and stirring for 2H at the rotating speed of 150r/min at the temperature of 90 ℃;
s2: putting 95 parts by mass of polyvinyl chloride resin and 8 parts by mass of low-density polyethylene into a mixer, continuously stirring for 3.5H at the rotation speed of 300r/min at the temperature of 110 ℃, adding 10 parts by mass of composite filler, 3 parts by mass of maleic anhydride grafted polypropylene, 0.3 part by mass of silane coupling agent, 2 parts by mass of mixture of antioxidant 164 and antioxidant BHT, 4 parts by mass of calcium-zinc stabilizer and 1.5 parts by mass of copper sulfate, and stirring for 45min at the rotation speed of 900r/min at the temperature of 130 ℃ to obtain a molten blend;
s3: and (4) transferring the molten blend obtained in the step S2 into a screw extruder, setting the temperature of a host machine to be 170 ℃ and the temperature of a die to be 50 ℃, and performing extrusion molding, shaping and cooling to obtain the polyvinyl chloride pipe.
Example 9 (comparative example two), preparation of polyvinyl chloride electric communication pipe five
The polyvinyl chloride power communication pipe comprises the following raw materials: polyvinyl chloride resin, low-density polyethylene, a modified toughening agent, a heat stabilizer, a dispersing agent, an antioxidant, a filler, a mildew preventive and a coupling agent.
S1: 3 parts by mass of modified toughening agent master batch are placed in a mixer, and stirred for 2H at the rotating speed of 150r/min at the temperature of 90 ℃;
s2: putting 95 parts by mass of polyvinyl chloride resin and 8 parts by mass of low-density polyethylene into a mixer, continuously stirring for 3.5H at the temperature of 110 ℃ at the rotating speed of 300r/min, adding 10 parts by mass of diatomite, 3 parts by mass of maleic anhydride grafted polypropylene, 0.3 part by mass of a silane coupling agent, 2 parts by mass of a mixture of antioxidant 164 and antioxidant BHT, 4 parts by mass of a calcium-zinc stabilizer and 1.5 parts by mass of copper sulfate, and stirring for 45min at the temperature of 130 ℃ at the rotating speed of 900r/min to obtain a molten blend;
s3: and (4) transferring the melt blend obtained in the step S2 into a screw extruder, setting the temperature of a main machine to be 170 ℃ and the temperature of a die to be 50 ℃, and performing extrusion molding, shaping and cooling to obtain the polyvinyl chloride pipe.
The physical properties of the polyvinyl chloride pipes prepared in examples 5 to 9 were measured, and the specific measurement data are shown in the following table:
| performance of | Example 5 | Example 6 | Example 7 | Example 8 | Example 9 | Ordinary PVC pipe |
| Elongation at Break% (20 ℃ C.) | 360 | 400 | 370 | 365 | 340 | 120 |
| % elongation at break (-70 ℃ C.) | 150 | 175 | 160 | 130 | 135 | 45 |
| Tensile Strength (MPa) (20 ℃ C.) | 59 | 64 | 61 | 58 | 56 | 40 |
| Tensile strength (Mpa) (-70 ℃ C.) | 30 | 34 | 31 | 29 | 28 | 11 |
| Tear Strength (Kpa) (20 ℃ C.) | 42 | 46 | 43 | 39 | 39 | 15 |
| Tear Strength (Kpa) (-70 ℃ C.) | 21 | 23 | 19 | 19 | 18 | 6 |
| Electromagnetic shielding performance (db) | 95 | 108 | 115 | 94 | 90 | 2 |
From the physical property test data of the polyvinyl chloride pipe obtained in the above example, it can be seen that:
the polyvinyl chloride pipes prepared in examples 5 to 7 all have better toughness (expressed by elongation at break), tensile strength, tear strength and electromagnetic shielding property, wherein the polyvinyl chloride pipe prepared in example 6 has higher toughness, tensile strength, electromagnetic shielding property and tear strength, and the polyvinyl chloride pipe prepared in example 6 has tensile strength and tear strength which are more than 3 times of those of the common polyvinyl chloride pipe; and the polyvinyl chloride pipes prepared in examples 5-7 also have good tensile strength, toughness and tear strength at-70 ℃.
Example 8 adopts the composite filler alone, and the toughening agent adopts the MBS resin, and as can be seen from the comparison between example 6 and example 8, the example 6 adopts the modified toughening agent and the composite filler to be matched, so that the polyvinyl chloride pipe prepared by using the composite filler alone has higher tensile strength and tear strength.
Example 9 adopts the modified toughening agent alone, and the filler adopts diatomite, and as can be seen from comparison between example 6 and example 9, the polyvinyl chloride pipe prepared by using the modified toughening agent alone in example 6 has higher tear strength and tensile strength than the polyvinyl chloride pipe prepared by using the modified toughening agent alone, which indicates that the modified toughening agent and the composite filler play a role in synergistically enhancing the tensile strength and tear strength.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the true spirit and scope of the present invention, which is defined by the claims appended hereto. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (4)
1. The toughened and modified polyvinyl chloride electric communication pipe is characterized by comprising the following raw materials in parts by weight: 90-100 parts of polyvinyl chloride resin, 5-10 parts of low-density polyethylene, 2-4 parts of modified toughening agent, 3-5 parts of heat stabilizer, 2-5 parts of dispersant, 1-3 parts of antioxidant, 5-15 parts of filler and 0.1-1 part of coupling agent;
the polyvinyl chloride pipe also comprises 1-2 parts of a mildew preventive, wherein the mildew preventive is copper sulfate, the heat stabilizer is a calcium-zinc stabilizer, the dispersing agent is maleic anhydride grafted polypropylene, the antioxidant is a mixture of an antioxidant 164 and an antioxidant BHT, and the coupling agent is a silane coupling agent;
the filler is a composite filler formed by diatomite and nano metal particles, and the preparation method of the composite filler comprises the following steps: uniformly mixing copper-nickel alloy powder and iron-nickel alloy powder, placing the mixture into a ball mill for polishing to obtain a nano metal particle mixture, placing diatomite into deionized water, uniformly stirring, adding the nano metal particle mixture, performing ultrasonic oscillation for 3-5H, adding a titanate coupling agent in the ultrasonic oscillation process, performing suction filtration, drying and grinding after ultrasonic oscillation is finished to obtain a composite filler;
the modified toughening agent is a mixture of random polypropylene, MBS and wollastonite, and the preparation method of the modified toughening agent comprises the following steps: placing the random polypropylene and the MBS resin in a mixer, stirring for 2-4H at the rotating speed of 300r/min at the temperature of 70-90 ℃, adding the wollastonite powder and the silane coupling agent after uniformly stirring, stirring for 3-5H at the rotating speed of 800r/min, transferring into an extruder after stirring, extruding, granulating and cooling to obtain the modified toughening agent master batch.
2. The toughened and modified polyvinyl chloride power communication pipe as claimed in claim 1, wherein the polyethylene pipe comprises, by mass, 95 parts of polyvinyl chloride resin, 8 parts of low-density polyethylene, 3 parts of a modified toughening agent, 4 parts of a heat stabilizer, 3 parts of a dispersing agent, 2 parts of an antioxidant, 10 parts of a filler, and 0.3 part of a coupling agent.
3. The toughened and modified polyvinyl chloride power communication pipe as claimed in claim 1, wherein the particle size of the modified toughening agent master batch is 4-8 mm.
4. The method for preparing the toughened and modified polyvinyl chloride power communication pipe as claimed in any one of claims 1 to 3, wherein the method for preparing the polyvinyl chloride power communication pipe comprises the following steps: s1: placing the modified toughening agent master batch into a mixer, and stirring for 1-3H at the rotating speed of 100-200r/min at the temperature of 80-100 ℃;
s2: putting polyvinyl chloride resin and low-density polyethylene into a mixer, continuously stirring for 2-5H at the rotation speed of 250-400r/min under the condition of 100-120 ℃, adding a composite filler, maleic anhydride grafted polypropylene, a silane coupling agent, a mixture of an antioxidant 164 and an antioxidant BHT, a calcium-zinc stabilizer and copper sulfate after stirring, and stirring for 0.5-1H at the rotation speed of 800-1000r/min under the condition of 120-140 ℃ to obtain a molten blend;
s3: and (4) transferring the molten blend obtained in the step S2 into a screw extruder, setting the temperature of a host machine at 160-180 ℃, setting the temperature of a die at 45-60 ℃, and performing extrusion molding, shaping and cooling to obtain the polyvinyl chloride pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110713001.0A CN113527820B (en) | 2021-06-25 | 2021-06-25 | Toughened and modified polyvinyl chloride power communication pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110713001.0A CN113527820B (en) | 2021-06-25 | 2021-06-25 | Toughened and modified polyvinyl chloride power communication pipe and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113527820A CN113527820A (en) | 2021-10-22 |
| CN113527820B true CN113527820B (en) | 2022-09-02 |
Family
ID=78125905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110713001.0A Active CN113527820B (en) | 2021-06-25 | 2021-06-25 | Toughened and modified polyvinyl chloride power communication pipe and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113527820B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116948320A (en) * | 2023-05-29 | 2023-10-27 | 惠州市元塑高分子材料有限公司 | Super-soft high-elasticity wear-resistant silica gel-like PVC (polyvinyl chloride) and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000154328A (en) * | 1998-09-16 | 2000-06-06 | Kanegafuchi Chem Ind Co Ltd | Thermoplastic resin composition |
| CN101177512A (en) * | 2006-11-06 | 2008-05-14 | 天津德昊超微新材料有限公司 | Special material for polychloroethylene insulating electrical casing pipe |
| CN104464987A (en) * | 2013-09-24 | 2015-03-25 | 天津摩根坤德高新科技发展有限公司 | Fire-resistant thermal isolation insulation tube |
| CN105837996A (en) * | 2016-06-15 | 2016-08-10 | 潘海云 | Toughened and modified PVC (polyvinyl chloride) plastic pipe and preparation method thereof |
| CN106700230A (en) * | 2015-11-15 | 2017-05-24 | 合肥杰事杰新材料股份有限公司 | Polypropylene composition and preparation method thereof |
| WO2017202337A1 (en) * | 2016-05-24 | 2017-11-30 | 山东日科化学股份有限公司 | Low-temperature toughening modifier for polyvinyl chloride and polyvinyl chloride composite agent containing same |
| CN111793296A (en) * | 2020-06-10 | 2020-10-20 | 杭州联通管业有限公司 | Superstrong modified polyvinyl chloride power tube and preparation method thereof |
-
2021
- 2021-06-25 CN CN202110713001.0A patent/CN113527820B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000154328A (en) * | 1998-09-16 | 2000-06-06 | Kanegafuchi Chem Ind Co Ltd | Thermoplastic resin composition |
| CN101177512A (en) * | 2006-11-06 | 2008-05-14 | 天津德昊超微新材料有限公司 | Special material for polychloroethylene insulating electrical casing pipe |
| CN104464987A (en) * | 2013-09-24 | 2015-03-25 | 天津摩根坤德高新科技发展有限公司 | Fire-resistant thermal isolation insulation tube |
| CN106700230A (en) * | 2015-11-15 | 2017-05-24 | 合肥杰事杰新材料股份有限公司 | Polypropylene composition and preparation method thereof |
| WO2017202337A1 (en) * | 2016-05-24 | 2017-11-30 | 山东日科化学股份有限公司 | Low-temperature toughening modifier for polyvinyl chloride and polyvinyl chloride composite agent containing same |
| CN105837996A (en) * | 2016-06-15 | 2016-08-10 | 潘海云 | Toughened and modified PVC (polyvinyl chloride) plastic pipe and preparation method thereof |
| CN111793296A (en) * | 2020-06-10 | 2020-10-20 | 杭州联通管业有限公司 | Superstrong modified polyvinyl chloride power tube and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113527820A (en) | 2021-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109181027B (en) | High-performance tire tread rubber and preparation method thereof | |
| CN107236297B (en) | Nano modified colored nylon composite material | |
| EP3789456A1 (en) | Polyamide resin composition having high metal texture and preparation method of polyamide resin composition | |
| CN113527820B (en) | Toughened and modified polyvinyl chloride power communication pipe and preparation method thereof | |
| CN109824996B (en) | Prefabricated surface layer material for anti-skid impact-resistant PVC plastic track and preparation method thereof | |
| CN113652029B (en) | Micro-foaming polypropylene composition and preparation method and application thereof | |
| CN109749126B (en) | Application of bio-based renewable fatty acid ester as tread rubber plasticizer | |
| EP2868491A1 (en) | Rubber composition for tire and tire manufactured by using the same | |
| CN107236298B (en) | Modification and coloring method of nylon composite material | |
| CN110698848B (en) | High-toughness spray-free polyamide 66/6 material and preparation method thereof | |
| CN110698851A (en) | High-toughness spraying-free polyamide 11 material and preparation method thereof | |
| CN101955601B (en) | Chloroprene rubber improved by employing ionomer | |
| CN110669334B (en) | High-toughness spraying-free polyamide 66 material and preparation method thereof | |
| CN110079032B (en) | High-strength polyvinyl chloride pipe for communication protection and preparation method thereof | |
| CN110551390B (en) | High-toughness spraying-free polyamide 6 material and preparation method thereof | |
| CN115746541B (en) | Polyurethane composite material special for inner tube of bicycle | |
| KR101182269B1 (en) | Sidewall rubber composition and tire manufactured by using the same | |
| CN109608721A (en) | A kind of preparation method of modified styrene butadiene rubber composite material | |
| CN110628211B (en) | Spraying-free polyamide 66/6 material and preparation method thereof | |
| CN111763389A (en) | PVC-U drainage pipe and preparation method thereof | |
| CN107057120A (en) | Rubber flows dispersant RFD preparation method and applications | |
| CN111607135A (en) | High-strength rubber-based damping material and preparation method thereof | |
| CN114133674B (en) | Chlorosulfonated polyethylene rubber and preparation method thereof | |
| CN110684191B (en) | Spraying-free polyamide 66 material and preparation method thereof | |
| CN109337583B (en) | Production method of non-cured asphalt coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |