CN108003509A - Prefabricated branch cable oil resistant flame-proof PVC injection molding material and preparation method - Google Patents
Prefabricated branch cable oil resistant flame-proof PVC injection molding material and preparation method Download PDFInfo
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- CN108003509A CN108003509A CN201711418022.XA CN201711418022A CN108003509A CN 108003509 A CN108003509 A CN 108003509A CN 201711418022 A CN201711418022 A CN 201711418022A CN 108003509 A CN108003509 A CN 108003509A
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- 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
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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
- 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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Abstract
The present invention provides a kind of prefabricated branch cable oil resistant flame-proof PVC injection molding material, it includes polyvinyl chloride, plasticizer built agent, filler built agent, fire retardant built agent, stabilizer, processing aid and acrylonitrile-butadiene rubber powder.While the prefabricated branch cable that the injection molding material ensures to prepare has certain flame retardant effect and mobile performance with PVC injection molding materials, solve the problems, such as that long term ageing stability, oil resistivity and the insulation performance of flame-proof PVC injection molding material are poor, and reduce follow-up prefabricated branch cable " fuel-displaced " risk.
Description
Technical field
The invention belongs to field of cable technology, and in particular to a kind of fire-retardant PVC injection molding materials of oil resistant.
Background technology
Prefabricated branch cable is a kind of new prefabrication type architectural electric cable, have operating expenses is low, power supply safety can
Lean on, excellent air-tightness, water proofing property the advantages that.So the distribution system such as middle-high building, factory, mine and highway, bridge,
Tunnel, airfield runway the various fields such as lighting system in be widely used.
With the fast development of economic construction of China, the prefabricated branch cable merely with certain fire resistance cannot
Fully meet requirement of the different field to it.Therefore while ensureing prefabricated branch cable certain fire resistance, improve long-term
Stability, oil resistivity, insulation performance are the current technical issues that need to address.Disclosed in Chinese patent CN 104744850A
A kind of flame-proof PVC injection molding material, although there is preferable flame retardant effect, due to being using the degree of polymerization partly in formula system
1300 resin-oatmeal, reduces the mobility of injection molding material.And extender plasticizer 52# chlorinated paraffins are largely used, on the one hand reduce
The long term ageing stability of injection molding material；On the other hand, " fuel-displaced " wind during later stage prefabricated branch cable use is added
The use of the plasticizer such as danger, o-phthalic acid dibutyl ester cannot also meet the requirement of RoHS2.0 standards.
The content of the invention
To solve problems of the prior art, the present invention provides a kind of prefabricated branch cable oil resistant flame-proof PVC injection
Material and preparation method thereof, the prefabricated branch cable for ensureing to prepare have certain flame retardant effect and mobile performance with PVC injection molding materials
While, solve the problems, such as that long term ageing stability, oil resistivity and the insulation performance of flame-proof PVC injection molding material are poor, and reduce follow-up
Prefabricated branch cable " fuel-displaced " risk.
Based on this, the present invention provides a kind of prefabricated branch cable oil resistant flame-proof PVC injection molding material, it include polyvinyl chloride,
Plasticizer built agent, filler built agent, fire retardant built agent, stabilizer, processing aid, acrylonitrile-butadiene rubber powder and colouring agent.
Wherein, the polyvinyl chloride polymerization degree is preferably 1000.
Wherein, the plasticizer built agent is by terephthalic acid (TPA) dibutyl ester (DOTP), polyester plasticizer and epoxidized soybean oil
(ESO) environment-friendly plasticizer is formed.
Wherein, filler built agent is made of calcium carbonate and kaolin.
Wherein, fire retardant built agent is made of complexing antimony, antimony oxide and zinc borate.
Wherein, the structural formula of the complexing antimony is as follows：
Wherein, R is methyl, ethyl, vinyl, propyl group, isopropyl, amyl group etc..
Wherein, stabilizer is calcium zinc stabilizer
Wherein, lubricant is one or more in Tissuemat E, calcium stearate, barium stearate.
Wherein, processing aid is the one or more such as addition forming agent WY-55, ACR-401.
Wherein, the proportioning of each component of PVC injection molding materials provided by the present invention is preferably 100 weight of PVC (degree of polymerization 1000)
Part；30~40 parts by weight of terephthalic acid (TPA) dibutyl ester；10~25 parts by weight of polyester plasticizer；2~6 parts by weight of epoxidized soybean oil；
5~30 parts by weight of calcium carbonate；5~30 parts by weight of kaolin；2~6 parts by weight of antimony oxide；It is complexed 2~6 parts by weight of antimony；Boron
Sour 3~8 parts by weight of zinc；5~8 parts by weight of calcium zinc stabilizer；1~2 parts by weight of lubricant；6~12 parts by weight of acrylonitrile-butadiene rubber powder；Add
2.5~3.5 parts by weight of work auxiliary agent；2.4 parts by weight of colouring agent.
Present invention also offers the preparation method of above-mentioned PVC injection molding materials, it includes：
The first step, the mixing of raw material：By in injection molding material in addition to the polyester plasticizer and acrylonitrile-butadiene rubber powder it is all into
Point it is proportionally added into 500L high-speed mixers, after stirring at low speed is until plasticizer fully absorbed by polyvinyl chloride resin powder,
Add the polyester plasticizer preheated in advance to continue stirring at low speed 1 to 2 minute, start high-speed stirred, when batch mixing reaches 110 DEG C, add
Acrylonitrile-butadiene rubber powder, continuing batch mixing to 120 DEG C or so of material temperature, blowing, whole process needs 8~14min；
Second step, extruding pelletization, the mixture that the first step is uniformly mixed are thrown into 75/180 Dual inoculation and are granulated, add
Work technique is twin-screw processing temperature：1 100~110 DEG C of area, 2 110~120 DEG C of areas, 3 120~125 DEG C of areas, 4 areas 120~130
DEG C, 5 125~135 DEG C of areas, 6 120~130 DEG C of areas, 7 115~120 DEG C of areas, 8 115~120 DEG C of areas；Single screw rod processing temperature：9
100 DEG C of area, 10 110 DEG C of areas, 11 130 DEG C of areas, 130~140 DEG C of head；
3rd step, packaging, material grain precise after dry screening, cooling are packed.
Compared with prior art, the present invention have the advantages that：
The injection molding material physical mechanical property that PVC injection molding materials provided by the invention are formed meets institute with reference to GB/T8815-
2008th, the standard such as GB/T5023-2008, JG/T147-2002, JB/T10636-2006 requirement, heat endurance, oil resistivity, insulation
Excellent performance, oxygen index (OI) reach more than 28%.
Embodiment
The present invention provides a kind of prefabricated branch cable oil resistant flame-proof PVC injection molding material, and it is multiple that it includes polyvinyl chloride, plasticizer
Ingredients, filler built agent, fire retardant built agent, stabilizer, processing aid, acrylonitrile-butadiene rubber powder and colouring agent.
Polyvinyl chloride has stable physicochemical properties, and mechanical performance and electrical insulating property are good, and limited oxygen index is reachable
50%, it is used widely in wires and cables industry.Good processing fluidity and release property are required in view of injection molding material,
It is general select the degree of polymerization 800 to 1000 Corvic as material of main part.To ensure that Flame-Retardant and Oil-Resistant PVC injection molding materials are same
When there is preferable insulation performance, the Corvic of selective polymerization degree 1000 is as material of main part.
The plasticizer built agent is by terephthalic acid (TPA) dibutyl ester (DOTP), polyester plasticizer and epoxidized soybean oil (ESO)
Environment-friendly plasticizer is formed, and dosage of the polyester plasticizer in injection molding material is 10-25 parts by weight, and polyester plasticizer is in the range of this
It can ensure that injection molding material has good oil resistance with acrylonitrile-butadiene rubber powder collective effect.Flame-proof PVC injection molding material and PVC extrusion electricity
Cable material compares the mobile performance, it is necessary to more excellent.Therefore requirement adds a large amount of plasticizer in injection molding material formula system.Excessive plasticising
The addition of agent, on the one hand, reduce the fire resistance of fire-retardant injection molding material, on the other hand, add follow-up prefabricated branch cable and " go out
Oil " etc. separates out risk, reduces the physical mechanical property of cable.Selection adds the polyester plasticizer of the title with permanent plasticizer,
Increase the endurance quality of flame-proof PVC injection molding material, reduce precipitation risk, and improve ageing-resistant performance.Therefore flame-proof PVC injection molding material selects
Add the plasticizer that terephthalic acid (TPA) dibutyl ester (DOTP), polyester plasticizer and epoxidized soybean oil (ESO) environment-friendly plasticizer are formed
Compound system, without adding CP-52 (52# chlorinated paraffins), having a negative impact to PVC cable material stability, cryogenic property
Non-environmental protection flame-retardant plasticizer.Polyester plasticizer is made by binary acid and dihydric alcohol by polycondensation reaction, have it is more highly polar,
There is good compatibility with PVC.Polyester plasticizer relative molecular weight is big, volatility is low, migration is small, and oil resistant and resistance to suds are taken out
Go out, be heat-resisting, the durability plasticizer of excellent performance.PVC in using Conventional plasticizers such as DOTP, DOP is molded material formula
Middle addition polyester plasticizer can play the role of attraction and cure above-mentioned plasticizer not to PVC product surface migration.Therefore add
Polyester plasticizer improves the oil resistance of injection molding material.
Filler built agent is made of calcium carbonate and kaolin.A certain amount of filler is added in polyvinyl chloride, can be dropped
Low, improve heat resistance, increase dimensional stability；Select the relatively high winnofil of oil factor and there is flame retardant effect
1250 mesh kaolin are arranged in pairs or groups as the filler of flame-proof PVC injection molding material and are used, and kaolinic effect is the volume electricity of raising system
This index of resistance rate.Play the purpose for improving insulation performance.
Fire retardant built agent is made of complexing antimony, antimony oxide and zinc borate, because largely addition plasticizer protects PVC
The fire resistance of set CABLE MATERIALS is greatly lowered, and selection addition has two ladder of complexing antimony and the oxidation of environmental protection three of synergistic effect with halogen
The auxiliary flame retardant arranged in pairs or groups as PVC sheath CABLE MATERIALS；A small amount of zinc borate flame retardant is added to improve PVC sheath CABLE MATERIALS at the same time
Fire resistance.
The structural formula of the complexing antimony is as follows：
Wherein, R is methyl, ethyl, vinyl, propyl group, isopropyl, amyl group etc..
The compound is a kind of new compound for meeting the requirement of RoHS standards with halogenated flame retardant with cooperative effect,
Itself hardly there is flame retardant effect, but there is good cooperative effect with halogen collocation, add in the middle part of the soft or hard products of PVC
Divide and substitute environmentally friendly antimony oxide.On the one hand, there is preferable synergistic effect with the chlorine element in PVC, improve the resistance of injection molding material
Fire performance；On the other hand, it is cheap than two ladder of the oxidation of environmental protection three to be complexed antimony, addition complexing antimony can reduce environmentally friendly antimony oxide
Additive amount, play the role of reducing cost.
Flame-proof PVC injection molding material requires the heat endurance of higher compared to PVC extrusion moldings material, and addition cooperates with work with epoxidized soybean oil
For Environment-friendlycalcium calcium zinc stabilizer of fine quality to improve its heat endurance, make flame-proof PVC injection molding material is processed into possibility.
One or more lubricants such as Tissuemat E, calcium stearate, barium stearate are added, frictional heat is prevented and causes poly-
Vinyl chloride is degraded, and improves the presentation quality of product；Add one or more processing such as forming agent WY-55, modifier A CR-401
Auxiliary agent improves the scattered of the dusty materials such as filler, improves fusion rate, reduces processing temperature, improves flame-proof PVC injection molding material
Processing fluidity, after raising polyester plasticizer adds the defects of PVC plastic time lengthening.
A small amount of acrylonitrile-butadiene rubber powder is added, improves the oil resistance of flame-proof PVC injection molding material, preferably fourth together with polyester plasticizer
The model P8300 of nitrile rubber powder.
The colouring agent uses black wash, allows injection molding material to become black products.
The proportioning of each component of PVC injection molding materials provided by the present invention is preferably 100 parts by weight of PVC (degree of polymerization 1000)；It is right
30~40 parts by weight of phthalic acid dibutyl ester；10~25 parts by weight of polyester plasticizer；2~6 parts by weight of epoxidized soybean oil；Calcium carbonate
5~30 parts by weight；5~30 parts by weight of kaolin；2~6 parts by weight of antimony oxide；It is complexed 2~6 parts by weight of antimony；Zinc borate 3~
8 parts by weight；5~8 parts by weight of calcium zinc stabilizer；1~2 parts by weight of lubricant；6~12 parts by weight of acrylonitrile-butadiene rubber powder；Processing aid
2.5~3.5 parts by weight；2.4 parts by weight of colouring agent.
Present invention also offers the preparation method of above-mentioned PVC injection molding materials, it includes：
The first step, the mixing of raw material：The institute in addition to polyester plasticizer and acrylonitrile-butadiene rubber powder in material formula will be molded
There is components in certain proportion to add in 500L high-speed mixers, stirring at low speed is until plasticizer fully absorbs it by polyvinyl chloride resin powder
Afterwards, add the polyester plasticizer preheated in advance to continue stirring at low speed 1 to 2 minute, start high-speed stirred, when batch mixing reaches 110 DEG C,
Acrylonitrile-butadiene rubber powder is added, continuing batch mixing to 120 DEG C or so of material temperature, blowing, whole process needs 8~14min；
Second step, extruding pelletization, the mixture that the first step is uniformly mixed are thrown into 75/180 Dual inoculation and are granulated, add
Work technique is twin-screw processing temperature：1 100~110 DEG C of area, 2 110~120 DEG C of areas, 3 120~125 DEG C of areas, 4 areas 120~130
DEG C, 5 125~135 DEG C of areas, 6 120~130 DEG C of areas, 7 115~120 DEG C of areas, 8 115~120 DEG C of areas；Single screw rod processing temperature：9
100 DEG C of area, 10 110 DEG C of areas, 11 130 DEG C of areas, 130~140 DEG C of head；
3rd step, packaging, material grain precise after dry screening, cooling are packed.
Below using embodiment come the embodiment that the present invention will be described in detail, whereby to the present invention how application technology means
To solve technical problem, and that reaches technique effect realizes that process can fully understand and implement according to this.
Volatility of 1 polyester plasticizer of embodiment in PVC injection molding material preparation process
Basic components：PVC：100；Plasticizer：60；Stabilizer PKD9075CZ (give birth to by Lian Kai meter Sen chemical products Co., Ltd
Production)：5；Thickness of test piece：1mm, is sampled by the 5A type dumbbells test piece in GB/T11040.2-2006.
Plasticizer selects polyester plasticizer (production of Lanxi City Wan Shengda Chemical Co., Ltd.s) W-2500 and adjacent benzene two respectively
Formic acid dioctyl ester (DOP), the results are shown in Table 1.
1 polyester plasticizer of table and Conventional plasticizers volatility compare
From 1 data of table：Polyester plasticizer weight volatilization loss is far below common plasticizers o-phthalic acid dibutyl ester,
It can be used in the PVC cable material of high heat resistant requirements.
Four sections of PVC injection molding materials are prepared using preparation method of the present invention respectively according to the proportioning of table 2.
2 each formulation ratio of table
PVC injection molding material effects prepared by each formula are as shown in table 3.
Table 3
Pass through above comparative example and embodiment：Substitute Conventional plasticizers using some polyesters plasticizer, injection molding material
Break-draw strain and oil resistance are significantly improved.By using polyester plasticizer and acrylonitrile-butadiene rubber powder, have injection molding material
There is good oil resistance, it can be used after being used in branch cable in special occasions.
All above-mentioned this intellectual properties of primarily implementation, the not this new product of implementation of setting limitation other forms
And/or new method.Those skilled in the art will utilize this important information, the above modification, to realize similar execution feelings
Condition.But all modifications or transformation belong to the right of reservation based on new product of the present invention.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (10)
- A kind of 1. prefabricated branch cable oil resistant flame-proof PVC injection molding material, it is characterised in that：Compounded including polyvinyl chloride, plasticizer Agent, filler built agent, fire retardant built agent, stabilizer, processing aid and acrylonitrile-butadiene rubber powder.
- 2. prefabricated branch cable as claimed in claim 1 oil resistant flame-proof PVC injection molding material, it is characterised in that：The polychlorostyrene second The alkene degree of polymerization is preferably 1000.
- 3. prefabricated branch cable as claimed in claim 1 or 2 oil resistant flame-proof PVC injection molding material, it is characterised in that：The plasticising Agent built agent is made of terephthalic acid (TPA) dibutyl ester (DOTP), polyester plasticizer and epoxidized soybean oil (ESO) environment-friendly plasticizer.
- 4. the prefabricated branch cable oil resistant flame-proof PVC injection molding material as described in claims 1 to 3, it is characterised in that：Filler is answered Ingredients is made of calcium carbonate and kaolin.
- 5. the prefabricated branch cable oil resistant flame-proof PVC injection molding material as described in Claims 1-4, it is characterised in that：Fire retardant is answered Ingredients is made of complexing antimony, antimony oxide and zinc borate.
- 6. the prefabricated branch cable oil resistant flame-proof PVC injection molding material as described in claim 1 to 5, it is characterised in that the complexing The structural formula of antimony is as follows：Wherein, R is methyl, ethyl, vinyl, propyl group, isopropyl, amyl group etc..
- 7. the prefabricated branch cable oil resistant flame-proof PVC injection molding material as described in claim 1 to 6, it is characterised in that：Stabilizer is Calcium zinc stabilizer.
- 8. the prefabricated branch cable oil resistant flame-proof PVC injection molding material as described in claim 1 to 7, it is characterised in that：Lubricant is It is one or more in Tissuemat E, calcium stearate, barium stearate.
- 9. the prefabricated branch cable oil resistant flame-proof PVC injection molding material as described in claim 1 to 8, it is characterised in that：Each component Match as 100 parts by weight of PVC (degree of polymerization 1000)；30~40 parts by weight of terephthalic acid (TPA) dibutyl ester；Polyester plasticizer 10~25 Parts by weight；2~6 parts by weight of epoxidized soybean oil；5~30 parts by weight of calcium carbonate；5~30 parts by weight of kaolin；Antimony oxide 2~ 6 parts by weight；It is complexed 2~6 parts by weight of antimony；3~8 parts by weight of zinc borate；5~8 parts by weight of calcium zinc stabilizer；1~2 weight of lubricant Part；6~12 parts by weight of acrylonitrile-butadiene rubber powder；2.5~3.5 parts by weight of processing aid；2.4 parts by weight of colouring agent.
- 10. the preparation method of claim 1 to the 9 PVC injection molding materials, its feature exist, including：The first step, the mixing of raw material：The all the components in addition to polyester plasticizer and acrylonitrile-butadiene rubber powder in injection molding material are pressed Ratio is added in 500L high-speed mixers, and stirring at low speed adds and carries after plasticizer is fully absorbed by polyvinyl chloride resin powder The polyester plasticizer of preceding preheating continues stirring at low speed 1 to 2 minute, starts high-speed stirred, when batch mixing reaches 110 DEG C, adds butyronitrile Rubber powder, continuing batch mixing to 120 DEG C or so of material temperature, blowing, whole process needs 8~14min；Second step, extruding pelletization, the mixture that the first step is uniformly mixed are thrown into 75/180 Dual inoculation and are granulated, and process work Skill is twin-screw processing temperature：1 100~110 DEG C of area, 2 110~120 DEG C of areas, 3 120~125 DEG C of areas, 4 120~130 DEG C of areas, 5 125~135 DEG C of area, 6 120~130 DEG C of areas, 7 115~120 DEG C of areas, 8 115~120 DEG C of areas；Single screw rod processing temperature：9 areas 100 DEG C, 10 110 DEG C of areas, 11 130 DEG C of areas, 130~140 DEG C of head；3rd step, packaging, material grain precise after dry screening, cooling are packed.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752799A (en) * | 2018-06-20 | 2018-11-06 | 浙江威思康塑胶有限公司 | A kind of heat-proof combustion-resistant softness PVC injection molding materials |
| CN108752800A (en) * | 2018-06-20 | 2018-11-06 | 浙江威思康塑胶有限公司 | A kind of preparation method of heat-proof combustion-resistant softness PVC injection molding materials |
| CN108912537A (en) * | 2018-06-20 | 2018-11-30 | 浙江威思康塑胶有限公司 | A kind of heat-proof combustion-resistant softness PVC cable protective boot |
| CN111995826A (en) * | 2020-08-13 | 2020-11-27 | 安徽滁州德威新材料有限公司 | Oil-resistant high-temperature-resistant flame-retardant PVC composition and preparation method and application thereof |
| CN115785590A (en) * | 2022-12-02 | 2023-03-14 | 威海市泓淋电力技术股份有限公司 | High-strength tear-resistant polyvinyl chloride for injection molding and preparation method thereof |
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| CN115785590A (en) * | 2022-12-02 | 2023-03-14 | 威海市泓淋电力技术股份有限公司 | High-strength tear-resistant polyvinyl chloride for injection molding and preparation method thereof |
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Application publication date: 20180508 |