CN115521556A - Heat-resistant and wear-resistant high-toughness PVC solid-wall pipe - Google Patents

Heat-resistant and wear-resistant high-toughness PVC solid-wall pipe Download PDF

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Publication number
CN115521556A
CN115521556A CN202210732959.9A CN202210732959A CN115521556A CN 115521556 A CN115521556 A CN 115521556A CN 202210732959 A CN202210732959 A CN 202210732959A CN 115521556 A CN115521556 A CN 115521556A
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Prior art keywords
parts
resistant
wall pipe
heat
wear
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CN202210732959.9A
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Chinese (zh)
Inventor
王庆顺
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Dongtai Zhulin High Tech Material Co ltd
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Dongtai Zhulin High Tech Material Co ltd
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Priority to CN202210732959.9A priority Critical patent/CN115521556A/en
Publication of CN115521556A publication Critical patent/CN115521556A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • 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
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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

Abstract

The invention discloses a heat-resistant and wear-resistant high-toughness PVC solid-wall pipe which comprises the following components in parts by mass: 100 parts of PVC resin, 5 to 40 parts of calcium carbonate, 4 to 10 parts of stabilizer, 2 to 6 parts of lubricant, 1 to 3 parts of processing aid, 1 to 6 parts of nano material, 2 to 6 parts of MBS impact modifier, 1 to 3 parts of flame-retardant smoke-abatement modifier, 1 to 3 parts of acrylic composite resin, 0.5 to 3 parts of filler, 0.5 to 1 part of ultraviolet absorbent and 0.2 to 0.5 part of antioxidant. The heat-resistant and wear-resistant high-toughness PVC solid-wall pipe disclosed by the invention completely does not contain heavy metal compounds such as lead, barium and cadmium, is not polluted by the heavy metal compounds even if being in direct contact with soil and water for a long time, achieves double effects of toughening and reinforcing the PVC solid-wall pipe by adding the nano material into the system and through the synergistic effect of PVC, and has the advantages of fire resistance, corrosion resistance, high temperature resistance and long aging resistance time, so that the heat-resistant and wear-resistant high-toughness PVC solid-wall pipe is convenient to construct, good in reliability and capable of being popularized and used.

Description

Heat-resistant and wear-resistant high-toughness PVC solid-wall pipe
Technical Field
The invention relates to the technical field of PVC solid-wall pipes, in particular to a heat-resistant and wear-resistant high-toughness PVC solid-wall pipe.
Background
The PVC solid-wall pipe has the advantages of acid and alkali resistance, good weather resistance, high strength, high ring stiffness, good insulativity, light weight, convenience in installation and operation, high cost performance and the like, and is an excellent chemical building material widely used globally for a long time. The PVC solid-wall pipe for the underground communication pipeline is formed by taking polyvinyl chloride resin as a main raw material, adding a proper amount of auxiliary agent and performing extrusion plasticizing; the protective device is mainly used for buried communication pipeline systems and is used for protecting communication cables and optical cable lines buried underground.
The existing PVC solid-wall pipe has low temperature resistance, poor wear resistance, easy damage and deformation in the use process, short service life and easy damage and deformation, and uses a stabilizer containing heavy metal compounds such as lead, barium, cadmium and the like, the pipe is buried and directly contacted with soil and water for a long time, the compatibility of the heavy metal compounds and PVC is very limited, and the heavy metal compounds contained in the pipe can finally migrate into the soil and the water to be polluted by the heavy metal compounds selected from the soil and the water. Therefore, we propose a heat-resistant and wear-resistant high-toughness PVC solid-wall pipe.
Disclosure of Invention
The invention mainly aims to provide a heat-resistant and wear-resistant high-toughness PVC solid-wall pipe which can effectively solve the problems in the background art.
In order to realize the purpose, the invention adopts the technical scheme that:
the heat-resistant wear-resistant high-toughness PVC solid-wall pipe comprises the following components in parts by mass: 100 parts of PVC resin, 5-40 parts of calcium carbonate, 4-10 parts of stabilizer, 2-6 parts of lubricant, 1-3 parts of processing aid, 1-6 parts of nano material, 2-6 parts of MBS impact modifier, 1-3 parts of flame-retardant smoke-abatement modifier, 1-3 parts of acrylic composite resin, 0.5-3 parts of filler, 0.5-1 part of ultraviolet absorbent and 0.2-0.5 part of antioxidant.
As a further improvement of the scheme, the composite material consists of the following components in parts by weight: 100 parts of PVC resin, 18 parts of calcium carbonate, 6 parts of stabilizer, 4 parts of lubricant, 2 parts of processing aid, 3 parts of nano material, 5 parts of MBS impact modifier, 2 parts of flame-retardant smoke-abatement modifier, 2 parts of acrylic composite resin, 1 part of filler, 0.8 part of ultraviolet absorbent and 0.3 part of antioxidant.
As a further improvement of the scheme, the PVC resin is SG-7 type resin or SG-8 type resin.
As a further improvement of the above solution, the stabilizer comprises at least one of a calcium zinc stabilizer, a complex salt stabilizer, or an organotin stabilizer.
As a further improvement of the above aspect, the lubricant is at least one of paraffin wax, PE wax, fischer-tropsch wax, and microcrystalline wax.
As a further improvement of the scheme, the processing aid is at least one of PA-40, ACR401 and PA-20.
As a further improvement of the scheme, the nano material comprises at least one of nano-scale silicon dioxide, nano-scale titanium dioxide and nano-scale calcium carbonate.
As a further improvement of the scheme, the flame-retardant smoke abatement modifier is ammonium octamolybdate.
As a further improvement of the scheme, the filler comprises at least one of calcium carbonate or titanium dioxide.
Compared with the prior art, the invention has the following beneficial effects:
1. the heat-resistant wear-resistant high-toughness PVC solid-wall pipe disclosed by the invention uses a calcium-zinc stabilizer which has no adverse effect on the environment, completely does not contain heavy metal compounds such as lead, barium and cadmium, and cannot be polluted by the heavy metal compounds after being directly contacted with soil and water for a long time.
2. The invention is formed by preparing various raw materials according to parts by weight, has the advantages of fire resistance, corrosion resistance, high temperature resistance and long aging resistance time, and not only is convenient to construct, but also has good reliability.
3. According to the invention, the nano material is added into the system, and the characteristics of large specific surface area, small density and good dispersion are achieved, so that the double effects of toughening and reinforcing the PVC solid-wall pipe are achieved through the synergistic effect of PVC, and the characteristics of wear resistance and high toughness are further improved.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships only for the convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
100kg of PVC resin, 18kg of calcium carbonate, 6kg of stabilizer, 4kg of lubricant, 2kg of processing aid, 3kg of nano material, 5kg of MBS impact modifier, 2kg of flame-retardant smoke-eliminating modifier, 2kg of acrylic composite resin, 1kg of filler, 0.8kg of ultraviolet absorbent and 0.3kg of antioxidant are sequentially put into a high-speed mixing mill (capacity 500L), the mixture is stirred at low speed for 30 seconds after the completion of the putting, then high-speed stirring is started, the mixture is discharged to a low-speed cold mixing cylinder (capacity 1500L) after the temperature of the cold mixing cylinder is reduced to be 45 ℃, the discharged material is conveyed to a conical double-screw extruder and is plasticized by the extruder, a support-type die is formed, a vacuum spray-type cooling water tank is sized, and a traction cutting machine is used for fixed-length cutting to prepare the finished product of the heat-resistant and wear-resistant high-toughness PVC solid-wall pipe, wherein the PVC resin is SG-7 type resin or SG-8 type resin; the stabilizer comprises at least one of a calcium zinc stabilizer, a composite salt stabilizer or an organic tin stabilizer; the lubricant is at least one of paraffin wax, PE wax, fischer-Tropsch wax and microcrystalline wax; the processing aid is at least one of PA-40, ACR401 and PA-20; the nano material comprises at least one of nano silicon dioxide, nano titanium dioxide and nano calcium carbonate; the flame-retardant smoke-eliminating modifier is ammonium octamolybdate; the filler comprises at least one of calcium carbonate or titanium dioxide.
Example two
100kg of PVC resin, 5kg of calcium carbonate, 4kg of stabilizer, 2kg of lubricant, 1kg of processing aid, 1kg of nano material, 2kg of MBS impact modifier, 1kg of flame-retardant smoke-eliminating modifier, 1kg of acrylic composite resin, 0.5kg of filler, 0.5kg of ultraviolet absorbent and 0.2kg of antioxidant are sequentially put into a high-speed mixing mill (capacity 500L), the mixture is stirred at low speed for 30 seconds after the completion of the putting, then high-speed stirring is started, the mixture is discharged to a low-speed cold mixing cylinder (capacity 1500L) after the temperature of the cold mixing cylinder is increased to 105-110 ℃, the discharged material is conveyed to a conical double-screw extruder when the temperature of the cold mixing cylinder is reduced by 45 ℃, the material is plasticized by the extruder, formed by a bracket type die, sized by a vacuum spray type cooling water tank, and cut by a traction cutting machine at fixed length to prepare the finished product of the heat-resistant and wear-resistant high-toughness PVC solid-wall pipe, wherein the PVC resin is SG-7 type resin or SG-8 type resin; the stabilizer comprises at least one of a calcium zinc stabilizer, a composite salt stabilizer or an organic tin stabilizer; the lubricant is at least one of paraffin wax, PE wax, fischer-Tropsch wax and microcrystalline wax; the processing aid is at least one of PA-40, ACR401 and PA-20; the nano material comprises at least one of nano silicon dioxide, nano titanium dioxide and nano calcium carbonate; the flame-retardant smoke-eliminating modifier is ammonium octamolybdate; the filler comprises at least one of calcium carbonate or titanium dioxide.
EXAMPLE III
100 parts of PVC resin, 40kg of calcium carbonate, 10kg of stabilizer, 6kg of lubricant, 3kg of processing aid, 6kg of nano material, 6kg of MBS impact modifier, 3kg of flame-retardant smoke-eliminating modifier, 3kg of acrylic composite resin, 3kg of filler, 1kg of ultraviolet absorbent and 0.5kg of antioxidant are sequentially put into a high-speed mixing mill (capacity 500L), the mixture is stirred at low speed for 30 seconds after the addition is finished, then high-speed stirring is started, the mixture is discharged to a low-speed cold mixing cylinder (capacity 1500L) after the temperature of the cold mixing cylinder is reduced to 45 ℃, the discharged material is conveyed to a conical double-screw extruder and is plasticized by the extruder, formed by a bracket type die, sized by a vacuum spray type cooling water tank, and cut by a traction cutting machine in fixed length to prepare the finished product of the heat-resistant and wear-resistant high-toughness PVC solid-wall pipe, wherein the PVC resin is SG-7 type resin or SG-8 type resin; the stabilizer comprises at least one of a calcium zinc stabilizer, a composite salt stabilizer or an organic tin stabilizer; the lubricant is at least one of paraffin wax, PE wax, fischer-Tropsch wax and microcrystalline wax; the processing aid is at least one of PA-40, ACR401 and PA-20; the nano material comprises at least one of nano silicon dioxide, nano titanium dioxide and nano calcium carbonate; the flame-retardant smoke-eliminating modifier is ammonium octamolybdate; the filler comprises at least one of calcium carbonate or titanium dioxide.
Example four
100kg of PVC resin, 22kg of calcium carbonate, 7kg of stabilizer, 4kg of lubricant, 5kg of processing aid, 3kg of nano material, 4kg of MBS impact modifier, 2kg of flame-retardant smoke-eliminating modifier, 2kg of acrylic composite resin, 2.2kg of filler, 0.7kg of ultraviolet absorbent and 0.3kg of antioxidant are sequentially put into a high-speed mixing mill (capacity 500L), the mixture is stirred at low speed for 30 seconds after the completion of the putting, then high-speed stirring is started, the mixture is discharged to a low-speed cold mixing cylinder (capacity 1500L) after the temperature of the cold mixing cylinder is increased to 105-110 ℃, the discharged material is conveyed to a conical double-screw extruder when the temperature of the cold mixing cylinder is reduced by 45 ℃, the material is plasticized by the extruder, formed by a bracket type die, sized by a vacuum spray type cooling water tank, and cut by a traction cutting machine at fixed length to prepare the finished product of the heat-resistant and wear-resistant high-toughness PVC solid-wall pipe, wherein the PVC resin is SG-7 type resin or SG-8 type resin; the stabilizer comprises at least one of calcium zinc stabilizer, composite salt stabilizer or organic tin stabilizer; the lubricant is at least one of paraffin wax, PE wax, fischer-Tropsch wax and microcrystalline wax; the processing aid is at least one of PA-40, ACR401 and PA-20; the nano material comprises at least one of nano silicon dioxide, nano titanium dioxide and nano calcium carbonate; the flame-retardant smoke-eliminating modifier is ammonium octamolybdate; the filler comprises at least one of calcium carbonate or titanium dioxide.
In the embodiment, the calcium zinc stabilizer which has no adverse effect on the environment is used, so that the calcium zinc stabilizer does not contain heavy metal compounds such as lead, barium, cadmium and the like, and cannot be polluted by the heavy metal compounds after being directly contacted with soil and water for a long time; the paint is prepared and molded by various raw materials according to parts by weight, has the advantages of fire resistance, corrosion resistance, high temperature resistance and long aging resistance time, is convenient to construct and has good reliability; the nano material is added into the system, and has the characteristics of large specific surface area, small density and good dispersion, so that the double effects of toughening and reinforcing the PVC solid-wall pipe are achieved through the synergistic effect of PVC, and the characteristics of wear resistance and high toughness are further improved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The heat-resistant and wear-resistant high-toughness PVC solid-wall pipe is characterized in that: the composition comprises the following components in parts by mass: 100 parts of PVC resin, 5-40 parts of calcium carbonate, 4-10 parts of stabilizer, 2-6 parts of lubricant, 1-3 parts of processing aid, 1-6 parts of nano material, 2-6 parts of MBS impact modifier, 1-3 parts of flame-retardant smoke-abatement modifier, 1-3 parts of acrylic composite resin, 0.5-3 parts of filler, 0.5-1 part of ultraviolet absorbent and 0.2-0.5 part of antioxidant.
2. The heat-resistant wear-resistant high-toughness PVC solid-wall pipe according to claim 1, wherein: the composite material consists of the following components in parts by weight: 100 parts of PVC resin, 18 parts of calcium carbonate, 6 parts of stabilizer, 4 parts of lubricant, 2 parts of processing aid, 3 parts of nano material, 5 parts of MBS impact modifier, 2 parts of flame-retardant smoke-abatement modifier, 2 parts of acrylic composite resin, 1 part of filler, 0.8 part of ultraviolet absorbent and 0.3 part of antioxidant.
3. The heat-resistant wear-resistant high-toughness PVC solid-wall pipe according to claim 1, wherein: the PVC resin is SG-7 type resin or SG-8 type resin.
4. The heat-resistant wear-resistant high-toughness PVC solid-wall pipe according to claim 1, wherein: the stabilizer comprises at least one of calcium zinc stabilizer, composite salt stabilizer or organic tin stabilizer.
5. The heat-resistant wear-resistant high-toughness PVC solid-wall pipe according to claim 1, wherein: the lubricant is at least one of paraffin wax, PE wax, fischer-Tropsch wax and microcrystalline wax.
6. The heat-resistant wear-resistant high-toughness PVC solid-wall pipe according to claim 1, wherein: the processing aid is at least one of PA-40, ACR401 and PA-20.
7. The heat-resistant wear-resistant high-toughness PVC solid-wall pipe according to claim 1, wherein: the nano material comprises at least one of nano silicon dioxide, nano titanium dioxide and nano calcium carbonate.
8. The heat-resistant wear-resistant high-toughness PVC solid-wall pipe according to claim 1, wherein: the flame-retardant smoke-eliminating modifier is ammonium octamolybdate.
9. The heat-resistant wear-resistant high-toughness PVC solid-wall pipe according to claim 1, wherein: the filler comprises at least one of calcium carbonate or titanium dioxide.
CN202210732959.9A 2022-06-27 2022-06-27 Heat-resistant and wear-resistant high-toughness PVC solid-wall pipe Pending CN115521556A (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102516693A (en) * 2011-11-30 2012-06-27 广东联塑科技实业有限公司 Chlorinated polyvinyl chloride pipe material and preparation method thereof
RU2012146177A (en) * 2012-10-29 2014-05-10 Общество с ограниченной ответственностью Торгово-промышленная группа "Росал" POLYMERIC COMPOSITION FOR PIPE MANUFACTURE
CN104530587A (en) * 2014-11-17 2015-04-22 海南联塑科技实业有限公司 PVC composition specially used for high-rise buildings
CN107141670A (en) * 2017-06-26 2017-09-08 上海远洲管业科技股份有限公司 Special chlorinated polyvinyl chloride tubes of fire-fighting and preparation method thereof
CN107226967A (en) * 2016-03-23 2017-10-03 新疆天业（集团）有限公司 Hidden pipe salt discharge modified PVC bellows
CN107266814A (en) * 2017-06-28 2017-10-20 广东联塑科技实业有限公司 A kind of underground communication pipeline environment-friendly PVC solid-wall pipe
CN109135096A (en) * 2018-06-21 2019-01-04 江苏诺贝尔塑业有限公司 A kind of wear-resisting PVC solid wall pipe and preparation method thereof
CN112266559A (en) * 2020-11-08 2021-01-26 常德七星泰塑业有限公司 Formula and preparation method of PVC solid-wall pipe
CN113150461A (en) * 2021-02-05 2021-07-23 义博通信设备集团股份有限公司 Formula and processing technology of PVC solid-wall pipe

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102516693A (en) * 2011-11-30 2012-06-27 广东联塑科技实业有限公司 Chlorinated polyvinyl chloride pipe material and preparation method thereof
RU2012146177A (en) * 2012-10-29 2014-05-10 Общество с ограниченной ответственностью Торгово-промышленная группа "Росал" POLYMERIC COMPOSITION FOR PIPE MANUFACTURE
CN104530587A (en) * 2014-11-17 2015-04-22 海南联塑科技实业有限公司 PVC composition specially used for high-rise buildings
CN107226967A (en) * 2016-03-23 2017-10-03 新疆天业（集团）有限公司 Hidden pipe salt discharge modified PVC bellows
CN107141670A (en) * 2017-06-26 2017-09-08 上海远洲管业科技股份有限公司 Special chlorinated polyvinyl chloride tubes of fire-fighting and preparation method thereof
CN107266814A (en) * 2017-06-28 2017-10-20 广东联塑科技实业有限公司 A kind of underground communication pipeline environment-friendly PVC solid-wall pipe
CN109135096A (en) * 2018-06-21 2019-01-04 江苏诺贝尔塑业有限公司 A kind of wear-resisting PVC solid wall pipe and preparation method thereof
CN112266559A (en) * 2020-11-08 2021-01-26 常德七星泰塑业有限公司 Formula and preparation method of PVC solid-wall pipe
CN113150461A (en) * 2021-02-05 2021-07-23 义博通信设备集团股份有限公司 Formula and processing technology of PVC solid-wall pipe

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Application publication date: 20221227