CN116285152A - High-strength optical cable protection tube easy to install and construct - Google Patents

High-strength optical cable protection tube easy to install and construct Download PDF

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Publication number
CN116285152A
CN116285152A CN202310116932.1A CN202310116932A CN116285152A CN 116285152 A CN116285152 A CN 116285152A CN 202310116932 A CN202310116932 A CN 202310116932A CN 116285152 A CN116285152 A CN 116285152A
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polyvinyl chloride
optical cable
square outer
reaction
mol
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CN116285152B (en
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方蔚清
沈坤
姚毅锋
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Zhejiang Jintang Pipe Technology Co ltd
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Zhejiang Jintang Pipe Technology Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H02G3/0412—Heat or fire protective means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0487—Tubings, i.e. having a closed section with a non-circular cross-section
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/04—Installations of electric cables or lines in or on the ground or water in surface ducts; Ducts or covers therefor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • 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
    • C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • 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)

Abstract

The invention discloses a high-strength optical cable protection tube easy to install and construct, which comprises a square outer tube sleeve and a round inner tube sleeve, wherein the square outer tube sleeve and the round inner tube sleeve are connected through an elastic support piece, the weight of a protection sleeve is reduced, the pressure resistance of the tube sleeve is improved, the square outer tube sleeve is made of modified polyvinyl chloride, the strength of the polyvinyl chloride is improved, the flame retardant property of the polyvinyl chloride is enhanced, a composite reinforcing agent is introduced into the modified polyvinyl chloride, nano calcium carbonate is used as a matrix for preparing the composite reinforcing agent, the surface of the nano calcium carbonate is modified through the modifying agent, the modifying agent has carboxyl interacted with the nano calcium carbonate, and has long carbon chains with lipophilicity similar to the polarity of the polyvinyl chloride, and the compatibility with the polyvinyl chloride is improved.

Description

High-strength optical cable protection tube easy to install and construct
Technical Field
The invention belongs to the technical field of cable materials, and particularly relates to a high-strength optical cable protection tube easy to install and construct.
Background
The sheath material of various cables such as optical cables and the like is widely adopted, and the polyvinyl chloride cable material basically can meet the requirements of insulation and sheath, but with the continuous expansion of the application range of wires and cables, the performance requirement on the polyvinyl chloride cable material is higher and higher, and especially the mechanical and flame retardant performance of the polyvinyl chloride cable material in the prior art needs to be further improved.
The nano calcium carbonate has smaller particle size, larger surface activity and specific surface area, so that the nano calcium carbonate can play a role in toughening and reinforcing in a matrix. However, also because of the smaller particle size and larger surface activity, there are obvious problems when the nano-particles are directly applied to the substrate: firstly, the nano-particles are difficult to uniformly disperse, and because the nano-particles have higher surface activity and are in a thermodynamically unstable state, the nano-particles are extremely easy to aggregate in the processing process, so that the toughening effect is difficult to be exerted; secondly, the affinity of the nano calcium carbonate with the matrix is poor, and the nano particle surface is hydrophilic and oleophobic, so that the nano calcium carbonate has no binding force with the matrix, and interface defects are easy to cause to reduce the mechanical property of the composite material.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention aims to provide a high-strength optical cable protection tube easy to install and construct.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a high strength is easy to install optical cable protection tube of construction, includes square outer pipe box and circular interior pipe box, connects through elastic support spare between square outer pipe box and the circular interior pipe box, lightens protective sheath weight, improves pipe box compressive capacity, square outer pipe box is made by modified polyvinyl chloride, modified polyvinyl chloride includes that the step is made:
step S1, weighing the following raw materials in parts by weight: 95-105 parts of polyvinyl chloride resin, 10-25 parts of composite reinforcing agent, 20-30 parts of plasticizer, 0.05-0.1 part of lubricant and 0.05-0.1 part of antioxidant 1010;
adding polyvinyl chloride resin, a composite reinforcing agent, a plasticizer, a lubricant and an antioxidant 1010 into a high-speed mixer, mixing and heating until the temperature reaches 110-125 ℃, putting into a cold mixer for cooling, transferring into a double-screw extruder after cooling to below 60 ℃, and obtaining the square outer pipe sleeve after a molding process.
Further, the plasticizer is chlorinated polyethylene.
Further, the lubricant is one or more of stearic acid, paraffin wax and polyethylene wax which are mixed according to any proportion.
Further, the composite reinforcing agent comprises the following steps:
s11, adding cardanol, triethylamine and phosphorus oxychloride into chloroform, stirring at a constant speed, carrying out reflux reaction for 4 hours, cooling to room temperature after the reaction is finished, filtering, removing a solvent by rotary evaporation, washing with deionized water for three times, drying to obtain an intermediate 1, and controlling the dosage ratio of cardanol, triethylamine, phosphorus oxychloride and chloroform to be 0.3 mol:0.1 mol:250 mL;
in the step S11, cardanol reacts with phosphorus oxychloride to generate an intermediate 1, and the reaction process is as follows:
Figure BDA0004078896810000031
step S12, adding the intermediate 1 and 3-chloroperoxybenzoic acid into dichloromethane, stirring at a constant speed in ice water bath, reacting for 3 hours, filtering after the reaction is finished, respectively washing filtrate with 10% sodium carbonate solution and deionized water for three times, removing solvent by rotary evaporation, and drying to obtain an intermediate 2, wherein the dosage ratio of the intermediate 1, 3-chloroperoxybenzoic acid and dichloromethane is controlled to be 0.03-0.05 mol:0.3 mol:200 mL;
in the step S12, the intermediate 1 reacts with 3-chloroperoxybenzoic acid, and the unsaturated double bond on the intermediate 1 is epoxidized to prepare an intermediate 2, wherein the structure of the intermediate 2 is shown as follows:
Figure BDA0004078896810000032
s13, adding the intermediate 2 and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide into a three-neck flask, heating to 160 ℃, uniformly stirring and reacting for 6 hours to obtain an intermediate 3, and controlling the molar ratio of the intermediate 2 to the 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to be 0.03 mol:0.18 mol;
in the step S13, the epoxy group on the intermediate 2 reacts with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to generate an intermediate 3, wherein the structure of the intermediate 3 is shown as follows:
Figure BDA0004078896810000041
s14, adding phthalic anhydride into a three-neck flask, stirring at a constant speed, heating to 100 ℃, adding an intermediate 3, carrying out heat preservation reaction, measuring the esterification rate every 15min in the reaction process until the esterification rate is not increased, stopping the reaction, cooling to 75 ℃, adding a 15% sodium hydroxide solution with mass fraction, vigorously stirring, reacting for 1h to obtain a modifier, controlling the molar ratio of phthalic anhydride to the intermediate 3 to be 1:1-1.05, and controlling the molar ratio of the sodium hydroxide to the carboxyl formed after esterification to be 1:1;
in the step S14, phthalic anhydride and one hydroxyl group on the intermediate 3 are subjected to esterification reaction to prepare the modifier, wherein the modifier not only has hydrophilic carboxyl groups, but also has long lipophilic carbon chains, and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide is introduced to endow polyvinyl chloride with excellent flame retardant property.
And S15, adding nano calcium carbonate into deionized water, heating to 80 ℃, uniformly stirring for 30min to obtain a suspension, then adding a modifier, preserving heat, uniformly stirring and reacting for 2h, and performing suction filtration, drying and crushing after the reaction is finished to obtain the composite reinforcing agent, wherein the dosage ratio of the nano calcium carbonate to the modifier to the deionized water is controlled to be 1:5-8:10 in the step S15.
In the step S15, the nano calcium carbonate is subjected to surface modification by a modifier, wherein the modifier has carboxyl which interacts with the nano calcium carbonate on one hand and long carbon chains with lipophilicity similar to that of polyvinyl chloride on the other hand, and the compatibility with the polyvinyl chloride is improved.
Further, the square outer sleeves are linearly distributed at intervals along the length direction, and the front section and the rear section of the adjacent protective sleeves are connected through the round inner sleeves.
Further, the four corners of the square outer pipe sleeve are provided with arc chamfers.
Further, the square outer pipe sleeve and the round inner pipe sleeve are detachably installed.
The invention has the beneficial effects that:
the invention prepares a high-strength optical cable protection tube easy to install and construct, the protection tube comprises a square outer tube sleeve and a round inner tube sleeve, the square outer tube sleeve and the round inner tube sleeve are connected through an elastic supporting piece, the weight of a protection sleeve is reduced, and the pressure resistance of the tube sleeve is improved, wherein the square outer tube sleeve is made of modified polyvinyl chloride, the strength of the polyvinyl chloride is improved and the flame retardant property of the polyvinyl chloride is enhanced by introducing a composite reinforcing agent into the modified polyvinyl chloride, the composite reinforcing agent is prepared by taking nano calcium carbonate as a matrix and carrying out surface modification on the nano calcium carbonate through the modifying agent, the modifying agent has carboxyl interacted with the nano calcium carbonate on one hand and long carbon chain with similar lipophilicity to the polyvinyl chloride on the other hand, the modifying agent has hydrophilic carboxyl and long oleophilic carbon chain on the other hand, and the 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide is introduced, so that the excellent flame retardant property of the polyvinyl chloride is endowed.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The composite reinforcing agent comprises the following steps:
s11, adding cardanol, triethylamine and phosphorus oxychloride into chloroform, stirring at a constant speed, carrying out reflux reaction for 4 hours, cooling to room temperature after the reaction is finished, filtering, removing a solvent by rotary evaporation, washing with deionized water for three times, drying to obtain an intermediate 1, and controlling the dosage ratio of cardanol, triethylamine, phosphorus oxychloride and chloroform to be 0.3 mol:0.1 mol:250 mL;
step S12, adding the intermediate 1 and 3-chloroperoxybenzoic acid into dichloromethane, stirring at a constant speed in ice water bath, reacting for 3 hours, filtering after the reaction is finished, respectively washing filtrate with 10% sodium carbonate solution and deionized water for three times, removing solvent by rotary evaporation, and drying to obtain an intermediate 2, wherein the dosage ratio of the intermediate 1, 3-chloroperoxybenzoic acid and dichloromethane is controlled to be 0.03 mol:0.3 mol:200 mL;
s13, adding the intermediate 2 and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide into a three-neck flask, heating to 160 ℃, uniformly stirring and reacting for 6 hours to obtain an intermediate 3, and controlling the molar ratio of the intermediate 2 to the 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to be 0.03 mol:0.18 mol;
s14, adding phthalic anhydride into a three-neck flask, stirring at a constant speed, heating to 100 ℃, adding an intermediate 3, carrying out heat preservation reaction, measuring the esterification rate every 15min in the reaction process until the esterification rate is not increased, stopping the reaction, cooling to 75 ℃, adding a 15% sodium hydroxide solution by mass fraction, vigorously stirring, reacting for 1h to obtain a modifier, controlling the molar ratio of phthalic anhydride to the intermediate 3 to be 1:1, and controlling the molar ratio of the sodium hydroxide to the carboxyl formed after esterification to be 1:1;
and S15, adding nano calcium carbonate into deionized water, heating to 80 ℃, uniformly stirring for 30min to obtain a suspension, then adding a modifier, preserving heat, uniformly stirring and reacting for 2h, and performing suction filtration, drying and crushing after the reaction is finished to obtain the composite reinforcing agent, wherein the dosage ratio of the nano calcium carbonate to the modifier to the deionized water is controlled to be 1:5:10 in the step S15.
Example 2
The composite reinforcing agent comprises the following steps:
s11, adding cardanol, triethylamine and phosphorus oxychloride into chloroform, stirring at a constant speed, carrying out reflux reaction for 4 hours, cooling to room temperature after the reaction is finished, filtering, removing a solvent by rotary evaporation, washing with deionized water for three times, drying to obtain an intermediate 1, and controlling the dosage ratio of cardanol, triethylamine, phosphorus oxychloride and chloroform to be 0.3 mol:0.1 mol:250 mL;
step S12, adding the intermediate 1 and 3-chloroperoxybenzoic acid into dichloromethane, stirring at a constant speed in ice water bath, reacting for 3 hours, filtering after the reaction is finished, respectively washing filtrate with 10% sodium carbonate solution and deionized water for three times, removing solvent by rotary evaporation, and drying to obtain an intermediate 2, wherein the dosage ratio of the intermediate 1, 3-chloroperoxybenzoic acid and dichloromethane is controlled to be 0.04 mol:0.3 mol:200 mL;
s13, adding the intermediate 2 and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide into a three-neck flask, heating to 160 ℃, uniformly stirring and reacting for 6 hours to obtain an intermediate 3, and controlling the molar ratio of the intermediate 2 to the 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to be 0.03 mol:0.18 mol;
s14, adding phthalic anhydride into a three-neck flask, stirring at a constant speed, heating to 100 ℃, adding an intermediate 3, carrying out heat preservation reaction, measuring the esterification rate every 15min in the reaction process until the esterification rate is not increased, stopping the reaction, cooling to 75 ℃, adding 15% sodium hydroxide solution by mass fraction, vigorously stirring, reacting for 1h to obtain a modifier, controlling the molar ratio of phthalic anhydride to the intermediate 3 to be 1:1.02, and controlling the molar ratio of the sodium hydroxide to carboxyl formed after esterification to be 1:1;
and S15, adding nano calcium carbonate into deionized water, heating to 80 ℃, uniformly stirring for 30min to obtain a suspension, then adding a modifier, preserving heat, uniformly stirring and reacting for 2h, and performing suction filtration, drying and crushing after the reaction is finished to obtain the composite reinforcing agent, wherein the dosage ratio of the nano calcium carbonate to the modifier to the deionized water is controlled to be 1:6:10 in the step S15.
Example 3
The composite reinforcing agent comprises the following steps:
s11, adding cardanol, triethylamine and phosphorus oxychloride into chloroform, stirring at a constant speed, carrying out reflux reaction for 4 hours, cooling to room temperature after the reaction is finished, filtering, removing a solvent by rotary evaporation, washing with deionized water for three times, drying to obtain an intermediate 1, and controlling the dosage ratio of cardanol, triethylamine, phosphorus oxychloride and chloroform to be 0.3 mol:0.1 mol:250 mL;
step S12, adding the intermediate 1 and 3-chloroperoxybenzoic acid into dichloromethane, stirring at a constant speed in ice water bath, reacting for 3 hours, filtering after the reaction is finished, respectively washing filtrate with 10% sodium carbonate solution and deionized water for three times, removing solvent by rotary evaporation, and drying to obtain an intermediate 2, wherein the dosage ratio of the intermediate 1, 3-chloroperoxybenzoic acid and dichloromethane is controlled to be 0.05 mol:0.3 mol:200 mL;
s13, adding the intermediate 2 and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide into a three-neck flask, heating to 160 ℃, uniformly stirring and reacting for 6 hours to obtain an intermediate 3, and controlling the molar ratio of the intermediate 2 to the 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to be 0.03 mol:0.18 mol;
s14, adding phthalic anhydride into a three-neck flask, stirring at a constant speed, heating to 100 ℃, adding an intermediate 3, carrying out heat preservation reaction, measuring the esterification rate every 15min in the reaction process until the esterification rate is not increased, stopping the reaction, cooling to 75 ℃, adding 15% sodium hydroxide solution by mass fraction, vigorously stirring, reacting for 1h to obtain a modifier, controlling the mole ratio of phthalic anhydride to the intermediate 3 to be 1:1.05, and controlling the mole ratio of the sodium hydroxide to the carboxyl formed after esterification to be 1:1;
and S15, adding nano calcium carbonate into deionized water, heating to 80 ℃, uniformly stirring for 30min to obtain a suspension, then adding a modifier, preserving heat, uniformly stirring and reacting for 2h, and performing suction filtration, drying and crushing after the reaction is finished to obtain the composite reinforcing agent, wherein the dosage ratio of the nano calcium carbonate to the modifier to the deionized water is controlled to be 1:8:10 in the step S15.
Example 4
The utility model provides a high strength is easy to install optical cable protection tube of construction, includes square outer pipe box and circular interior pipe box, connects through elastic support spare between square outer pipe box and the circular interior pipe box, lightens protective sheath weight, improves pipe box compressive capacity, square outer pipe box is made by modified polyvinyl chloride, modified polyvinyl chloride includes that the step is made:
step S1, weighing the following raw materials in parts by weight: 95 parts of polyvinyl chloride resin, 10 parts of the composite reinforcing agent prepared in the embodiment 1, 20 parts of chlorinated polyethylene, 0.05 part of stearic acid and 0.05 part of antioxidant 1010;
adding polyvinyl chloride resin, a composite reinforcing agent, a plasticizer, a lubricant and an antioxidant 1010 into a high-speed mixer, mixing and heating until the temperature reaches 110 ℃, putting into a cold mixer for cooling to below 60 ℃, transferring into a double-screw extruder, and obtaining the square outer pipe sleeve after a molding process.
Example 5
The utility model provides a high strength is easy to install optical cable protection tube of construction, includes square outer pipe box and circular interior pipe box, connects through elastic support spare between square outer pipe box and the circular interior pipe box, lightens protective sheath weight, improves pipe box compressive capacity, square outer pipe box is made by modified polyvinyl chloride, modified polyvinyl chloride includes that the step is made:
step S1, weighing the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 15 parts of the composite reinforcing agent prepared in the example 2, 25 parts of chlorinated polyethylene, 0.08 part of paraffin wax and 0.08 part of antioxidant 1010;
and S2, adding the polyvinyl chloride resin, the composite reinforcing agent, the plasticizer, the lubricant and the antioxidant 1010 into a high-speed mixer, mixing and heating until the temperature reaches 115 ℃, putting into a cold mixer for cooling, cooling to below 60 ℃, transferring into a double-screw extruder, and obtaining the square outer pipe sleeve after a molding process.
Example 6
The utility model provides a high strength is easy to install optical cable protection tube of construction, includes square outer pipe box and circular interior pipe box, connects through elastic support spare between square outer pipe box and the circular interior pipe box, lightens protective sheath weight, improves pipe box compressive capacity, square outer pipe box is made by modified polyvinyl chloride, modified polyvinyl chloride includes that the step is made:
step S1, weighing the following raw materials in parts by weight: 105 parts of polyvinyl chloride resin, 25 parts of the composite reinforcing agent prepared in example 3, 30 parts of chlorinated polyethylene, 0.1 part of polyethylene wax and 0.1 part of antioxidant 1010;
and S2, adding the polyvinyl chloride resin, the composite reinforcing agent, the plasticizer, the lubricant and the antioxidant 1010 into a high-speed mixer, mixing and heating until the temperature reaches 125 ℃, putting into a cold mixer for cooling, transferring to a double-screw extruder after cooling to below 60 ℃, and obtaining the square outer pipe sleeve after a molding process.
Comparative example 1
This comparative example uses nano calcium carbonate instead of the composite enhancer as compared to example 4.
Comparative example 2
The comparative example is a polyvinyl chloride material produced by a commercial company.
The square outer tube sleeves prepared in examples 4-6 and comparative examples 1-2 were tested for performance and the results are shown in Table 1 below:
TABLE 1
Figure BDA0004078896810000101
Figure BDA0004078896810000111
From the above table 1, it can be seen that the polyvinyl chloride materials prepared in examples 1 to 3 of the present invention have excellent mechanical properties and flame retardant properties.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims (8)

1. The utility model provides a high strength is easy to install optical cable protection tube of construction, includes square outer pipe box and circular interior pipe box, connects through elastic support piece between square outer pipe box and the circular interior pipe box, its characterized in that, square outer pipe box is made by modified polyvinyl chloride, modified polyvinyl chloride includes that the step is made:
step S1, weighing the following raw materials in parts by weight: 95-105 parts of polyvinyl chloride resin, 10-25 parts of composite reinforcing agent, 20-30 parts of plasticizer, 0.05-0.1 part of lubricant and 0.05-0.1 part of antioxidant 1010;
and S2, adding the polyvinyl chloride resin, the composite reinforcing agent, the plasticizer, the lubricant and the antioxidant 1010 into a high-speed mixer, mixing and heating until the temperature reaches 110-125 ℃, putting into a cold mixer for cooling, cooling to below 60 ℃, transferring into a double-screw extruder, and obtaining the square outer pipe sleeve after a molding process.
2. The high-strength easy-to-install optical cable protective tube according to claim 1, wherein the plasticizer is chlorinated polyethylene.
3. The high-strength easy-to-install optical cable protection tube according to claim 1, wherein the lubricant is one or more of stearic acid, paraffin wax and polyethylene wax mixed according to any proportion.
4. The high-strength easy-to-install optical cable protective tube according to claim 1, wherein the composite reinforcing agent comprises the following steps:
step S11, adding cardanol, triethylamine and phosphorus oxychloride into chloroform, stirring at a constant speed, carrying out reflux reaction for 4 hours, cooling to room temperature after the reaction is finished, filtering, rotary evaporating, washing with deionized water for three times, and drying to obtain an intermediate 1;
step S12, adding the intermediate 1 and 3-chloroperoxybenzoic acid into dichloromethane, stirring at a uniform speed in an ice water bath, reacting for 3 hours, filtering after the reaction is finished, respectively washing filtrate with 10% sodium carbonate solution and deionized water for three times, performing rotary evaporation, and drying to obtain an intermediate 2;
step S13, adding the intermediate 2 and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide into a three-neck flask, heating to 160 ℃, stirring at a constant speed, and reacting for 6 hours to obtain an intermediate 3;
s14, adding phthalic anhydride into a three-neck flask, stirring at a constant speed, heating to 100 ℃, adding an intermediate 3, carrying out heat preservation reaction, measuring the esterification rate every 15min in the reaction process until the esterification rate is not increased, stopping the reaction, cooling to 75 ℃, adding 15% sodium hydroxide solution by mass fraction, and carrying out vigorous stirring to react for 1h to obtain a modifier;
and S15, adding nano calcium carbonate into deionized water, heating to 80 ℃, uniformly stirring for 30min to obtain a suspension, then adding a modifier, preserving heat, uniformly stirring and reacting for 2h, and carrying out suction filtration, drying and crushing after the reaction is finished to obtain the composite reinforcing agent.
5. The high-strength optical cable protection tube easy to install and construct according to claim 1, wherein the using amount ratio of cardanol, triethylamine, phosphorus oxychloride and chloroform is controlled to be 0.3 mol:0.1 mol:250 mL in the step S11, the using amount ratio of intermediate 1, 3-chloroperoxybenzoic acid and dichloromethane is controlled to be 0.03-0.05 mol:0.3 mol:200 mL in the step S12, the using amount ratio of intermediate 2 and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide is controlled to be 0.03 mol:0.18 mol in the step S13, the using amount ratio of phthalic anhydride and intermediate 3 is controlled to be 1:1-1.05 in the step S14, and the using amount ratio of nano calcium carbonate, modifier and deionized water is controlled to be 1:5-8%: 10 in the step S15.
6. The high-strength optical cable protection tube easy to install and construct according to claim 1, wherein the square outer tube sleeves are linearly distributed at intervals along the length direction, and the front and rear adjacent sections of protection sleeves are connected through the round inner tube sleeves.
7. The high-strength easy-to-install optical cable protection tube according to claim 1, wherein the four corners of the square outer tube sleeve are provided with arc chamfers.
8. The high-strength easy-to-install optical cable protective tube according to claim 1, wherein the square outer tube sleeve is detachably mounted with the circular inner tube sleeve.
CN202310116932.1A 2023-02-15 2023-02-15 High-strength optical cable protection tube easy to install and construct Active CN116285152B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002161191A (en) * 2000-11-27 2002-06-04 Sumitomo Bakelite Co Ltd Flame retardant resin composition, prepreg and laminated sheet which use the same
CN108373484A (en) * 2018-02-25 2018-08-07 李嘉顺 A kind of phosphorous anacardol polyglycidyl ether and preparation method thereof
CN112480565A (en) * 2020-11-27 2021-03-12 江苏华信新材料股份有限公司 Phosphorus-containing cardanol-based flame-retardant plasticizer for modified polyvinyl chloride and preparation method and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002161191A (en) * 2000-11-27 2002-06-04 Sumitomo Bakelite Co Ltd Flame retardant resin composition, prepreg and laminated sheet which use the same
CN108373484A (en) * 2018-02-25 2018-08-07 李嘉顺 A kind of phosphorous anacardol polyglycidyl ether and preparation method thereof
CN112480565A (en) * 2020-11-27 2021-03-12 江苏华信新材料股份有限公司 Phosphorus-containing cardanol-based flame-retardant plasticizer for modified polyvinyl chloride and preparation method and application thereof

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