CN105820476A - PVC-U large bending electrical conduit - Google Patents
PVC-U large bending electrical conduit Download PDFInfo
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- CN105820476A CN105820476A CN201610302367.8A CN201610302367A CN105820476A CN 105820476 A CN105820476 A CN 105820476A CN 201610302367 A CN201610302367 A CN 201610302367A CN 105820476 A CN105820476 A CN 105820476A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/802—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/865—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a PVC-U large bending electrical conduit which comprises the components, by mass, 80-120 parts of PVC-SG5 type resin, 6-20 parts of impact modifier, 30-60 parts of filling agent, 4-8 parts of stabilizing agent, 0.5-2 parts of external lubricant, 0.5-2 parts of lubricant, 1-5 parts of pigment and 0-0.5 part of brightening agent. According to the disclosed electrical conduit, the pipe with the diameter of about 20 cm can be bent by 180 degrees under the conditions of room temperature and low temperature and no visible crack exists, while in the prior art, only the pipe with the diameter of about 60 cm can be bent by 180 degrees under the conditions of room temperature and low temperature and no visible crack exists. The disclosed electrical conduit can well meet the practical use requirements.
Description
Technical field
The invention belongs to electrician's catheter arts, be specifically related to a kind of PVC-U electrician's conduit realizing big bending curvature.
Background technology
PVC-U pipe also known as hard polvinyl choride pipe, PVC-U pipe is that one is corrosion-resistant by force, acidproof alkali salt oil medium PVC-U electrician
Conduit tubing and pipe fitting are with Corvic as primary raw material, add special auxiliary agent, wearing of extruded and injection molding
Line pipe and pipe fitting.It is mainly used as electric, communication cable sleeve pipe.
PVC-U pipe develops quickly as building plastic goods, and especially in some developed countries, its total flow has accounted for plastics
The 80%～90% of tubing, wherein building uses PVC-U pipe to make penetration pipe and reached more than 90%.In recent years, the building of China is worn
Spool also uses PVC hard tube and hard PVC corrugated tube, but PVC hard tube bending property is bad, though and PVC corrugated tube energy
Bending, but the ripple of inwall makes construction threading produce difficulty.
PVC-U electrical casing pipe needs to be curved in reality uses due to it sometimes, therefore bending property be that it is critically important one
Performance indications, it has also been made performance requirement by building industry industry standard JG3050-1998, it is desirable to tubing is at room temperature and low temperature
Under the conditions of bend 180 ° without visible crack, this performance is the embodiment that tubing keeps having certain toughness under hard conditions, with guarantor
Card tubing at normal temperatures can be with curved cold by spring, convenient construction.But sometimes need to be at a least corner in using due to reality
Place carries out the bending of bigger radian.Therefore the bending property of sleeve pipe is had higher requirement；Often conformance with standard JG
The tubing that 3050-1998 bending property requires differs and meets the use that need to carry out big bending curvature surely, and this has resulted in customer demand
Inconsistent with what tubing produced.
It is very important so producing a kind of electrician's conduit realizing big bending curvature.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of PVC-U electrician's conduit realizing big bending curvature.For preferably
Meet reality use demand, just the bending property of PVC-U electrical casing pipe need to be promoted, carry out examination criteria supplementing raising,
Make produced electrician's conduit can realize the performance of big bending curvature.
For reaching above-mentioned purpose, the invention provides following technical scheme:
1, a kind of PVC-U electrician's conduit realizing big bending curvature, described conduit is the most composed of the following components:
PVC-SG5 type resin: 80-120 part
Modifying agent: 6-20 part
Filler: 30-60 part
Stabilizer: 4-8 part
External lubricant: 0.5-2 part
Lubricant: 0.5-2 part
Pigment: 1-5 part
Brightening agent: 0-0.5 part.
Preferably, described modifying agent is ACM resin, the mixture of CPE, ACR resin composition.
Preferably, described modifying agent is the most composed of the following components: ACM resin: 1-5 part；CPE:5-18 part；ACR
Resin: 0-5 part.
Preferably, described filler is superfine light calcium carbonate, nanometer calcium, ultrafine heavy calcium or montmorillonite.
Preferably, described stabilizer is calcium zinc stabilizer.
Preferably, described external lubricant is Tissuemat E, and described lubricant is stearic acid.
Preferably, described pigment is titanium dioxide, and described brightening agent is fluorescent whitening agent OB.
2, the preparation method of the described PVC-U electrician's conduit realizing big bending curvature, comprises the steps:
S1: mixed by described raw material, then carries out mixing dispersion with the hot batch mixer of high speed, is 90-130 DEG C mediating the mixed temperature of heat
Under the conditions of heat mixed 400-800s, then cold mixed 600-800s under cold mixed temperature 50-60 DEG C temperature conditions；
S2: the material described in step S1 adds double screw extruder plasticizing, molded, and wherein double screw extruder is that taper is double
Screw extruder, barrel one, two district's processing temperature 190-220 DEG C, barrel three, four district's processing temperature 140-170 DEG C, merging core
Processing temperature 160-175 DEG C, mould one, two district's processing temperature 170-185 DEG C, mouth die processing temperature 190-220 DEG C, main frame spiral shell
Bar rotating speed 25-35 turns, main frame electric current 40-65A, barrel purging vacuum >=0.07MPa, tubing sizing vacuum 0.04-0.07MPa.
The present invention uses mixture that ACM resin, CPE, ACR resin form as anti-impact modifier, and mixture is soft
Form rubbery state, pipe can be made at normal temperatures to bend, additional mixing thing have suitable processability, dispersibility, impact flexibility,
The performances such as fire-retardant, low temperature resistant, solvent resistant；The present invention use filler be superfine light calcium carbonate, nanometer calcium, ultrafine heavy calcium or
Montmorillonite, this is possible not only to reduce cost, and for convenient formation, because the requirement to bendable penetration pipe is to use bullet
The penetration pipe of spring bending, after pumping spring, can should not have rebound phenomenon by bend pipe, and packing material used in the present invention both disappeared
Except rebound phenomenon, be conducive to again the control of sizing and expressing technique.
The beneficial effects of the present invention is: the invention discloses a kind of PVC-U electrician's conduit realizing big bending curvature, described
Electrical casing pipe can realize the tubing of about 20 centimeters bend under room temperature and cryogenic conditions 180 ° without visible crack, and prior art
Tubing typically can only realize the tubing of about 60 centimeters and under room temperature and cryogenic conditions, bend 180 ° without visible crack.The present invention
Disclosed electrician's conduit can preferably meet reality use demand.
Accompanying drawing explanation
In order to make the purpose of the present invention, technical scheme and beneficial effect clearer, the present invention provides drawings described below:
Fig. 1 represents the crooked test figure of PVC-U electrician's conduit.
Detailed description of the invention
With specific embodiment, the present invention will be further described below, the experimental technique of unreceipted actual conditions in embodiment, generally
According to normal condition or according to the condition proposed by manufacturer.
PVC-U electrician's conduit described in following example is all prepared by following processing step:
S1: mixed by described raw material, then carries out mixing dispersion with the hot batch mixer of high speed, is 90-130 DEG C mediating the mixed temperature of heat
Under the conditions of heat mixed 400-800s, then cold mixed 600-800s under cold mixed temperature 50-60 DEG C temperature conditions；
S2: the material described in step S1 adds double screw extruder plasticizing, molded, and wherein double screw extruder is that taper is double
Screw extruder, barrel one, two district's processing temperature 190-220 DEG C, barrel three, four district's processing temperature 140-170 DEG C, merging core
Processing temperature 160-175 DEG C, mould one, two district's processing temperature 170-185 DEG C, mouth die processing temperature 190-220 DEG C, main frame spiral shell
Bar rotating speed 25-35 turns, main frame electric current 40-65A, barrel purging vacuum >=0.07MPa, tubing sizing vacuum 0.04-0.07MPa.
Embodiment 1
PVC-U electrician's conduit raw material material formula prepared by the present embodiment is as shown in table 1:
Table 1: embodiment 1PVC-U electrician's conduit composition of raw materials
PVC-U electrician's conduit raw material material formula prepared by embodiment 2 the present embodiment is as shown in table 2:
Table 2: embodiment 2PVC-U electrician's conduit composition of raw materials
PVC-U electrician's conduit raw material material formula prepared by embodiment 3 the present embodiment is as shown in table 3:
Table 3: embodiment 3PVC-U electrician's conduit composition of raw materials
Intercept respectively 18 centimeters of PVC-U electrician's conduit prepared by embodiment 1～3,19 centimeters, the conduit of 15 centimeters carries out
Mechanics Performance Testing, wherein Fig. 1 represents the crooked test figure of PVC-U electrician's conduit, and test result is as shown in table 4:
PVC-U electrician's conduit data of mechanical prepared by table 4 embodiment 1～3
Mechanical performance data as shown in Table 4 can prove PVC-U electrician's conduit disclosed in this invention can realize 20 centimeters of left sides
Right tubing bend under room temperature and cryogenic conditions 180 ° without visible crack, and do not interfere with other mechanical properties of conduit yet
Index, disclosed electrician's conduit can preferably meet reality use demand.
Finally illustrating, preferred embodiment above is only in order to illustrate technical scheme and unrestricted, although by above-mentioned
The present invention is described in detail by preferred embodiment, it is to be understood by those skilled in the art that can in form and
In details, it is made various change, without departing from claims of the present invention limited range.
Claims (8)
1. the PVC-U electrician's conduit that can realize big bending curvature, it is characterised in that described conduit is by mass by following components
Composition:
PVC-SG5 type resin: 80-120 part
Modifying agent: 6-20 part
Filler: 30-60 part
Stabilizer: 4-8 part
External lubricant: 0.5-2 part
Lubricant: 0.5-2 part
Pigment: 1-5 part
Brightening agent: 0-0.5 part.
A kind of PVC-U electrician's conduit realizing big bending curvature, it is characterised in that described modification
Agent is ACM resin, the mixture of CPE, ACR resin composition.
A kind of PVC-U electrician's conduit realizing big bending curvature, it is characterised in that described modification
Agent is the most composed of the following components: ACM resin: 1-5 part；CPE:5-18 part；ACR resin: 0-5 part.
A kind of PVC-U electrician's conduit realizing big bending curvature, it is characterised in that described filling
Agent is superfine light calcium carbonate, nanometer calcium, ultrafine heavy calcium or montmorillonite.
5. to remove a kind of PVC-U electrician's conduit realizing big bending curvature described in 1 according to right, it is characterised in that described stable
Agent is calcium zinc stabilizer.
A kind of PVC-U electrician's conduit realizing big bending curvature, it is characterised in that described outer profit
Lubrication prescription is Tissuemat E, and described lubricant is stearic acid.
A kind of PVC-U electrician's conduit realizing big bending curvature, it is characterised in that described pigment
For titanium dioxide, described brightening agent is fluorescent whitening agent OB.
8. the preparation method of PVC-U electrician's conduit of big bending curvature described in any one of claim 1～7, can be realized, it is characterised in that
Comprise the steps:
S1: mixed by described raw material, then carries out mixing dispersion with the hot batch mixer of high speed, is 90-130 DEG C of condition mediating the mixed temperature of heat
Lower heat mixes 400-800s, then cold mixed 600-800s under cold mixed temperature 50-60 DEG C temperature conditions；
S2: by described in step S1 material add double screw extruder plasticizing, molded, wherein double screw extruder is conical double-screw
Extruder, barrel one, two district's processing temperature 190-220 DEG C, barrel three, four district's processing temperature 140-170 DEG C, merging core is processed
Temperature 160-175 DEG C, mould one, two district's processing temperature 170-185 DEG C, mouth die processing temperature 190-220 DEG C, main-machine screw turns
Speed 25-35 turns, main frame electric current 40-65A, barrel purging vacuum >=0.07MPa, tubing sizing vacuum 0.04-0.07MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302367.8A CN105820476A (en) | 2016-05-09 | 2016-05-09 | PVC-U large bending electrical conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302367.8A CN105820476A (en) | 2016-05-09 | 2016-05-09 | PVC-U large bending electrical conduit |
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| Publication Number | Publication Date |
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| CN105820476A true CN105820476A (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610302367.8A Pending CN105820476A (en) | 2016-05-09 | 2016-05-09 | PVC-U large bending electrical conduit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675906A (en) * | 2020-07-02 | 2020-09-18 | 宿州市信顺塑胶有限公司 | PVC-U light electrical casing and preparation process thereof |
| CN113234292A (en) * | 2021-04-01 | 2021-08-10 | 广东联塑科技实业有限公司 | High-toughness flame-retardant insulating PVC material and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151738A (en) * | 2014-07-31 | 2014-11-19 | 河南联塑实业有限公司 | Environment-friendly polyvinyl chloride electrical conduit and preparation method thereof |
-
2016
- 2016-05-09 CN CN201610302367.8A patent/CN105820476A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151738A (en) * | 2014-07-31 | 2014-11-19 | 河南联塑实业有限公司 | Environment-friendly polyvinyl chloride electrical conduit and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675906A (en) * | 2020-07-02 | 2020-09-18 | 宿州市信顺塑胶有限公司 | PVC-U light electrical casing and preparation process thereof |
| CN113234292A (en) * | 2021-04-01 | 2021-08-10 | 广东联塑科技实业有限公司 | High-toughness flame-retardant insulating PVC material and preparation method and application thereof |
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Application publication date: 20160803 |
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