CN108752796A - A kind of preparation method of heat-proof combustion-resistant PVC cable material - Google Patents
A kind of preparation method of heat-proof combustion-resistant PVC cable material Download PDFInfo
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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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- 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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- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- 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
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- 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
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention relates to a kind of cable material more particularly to a kind of preparation methods of heat-proof combustion-resistant PVC cable material.The preparation method includes the following steps：（a）The synthesis of organic siliconresin modified polyamide；（b）Dispensing；（c）Batch mixing；（d）Extruding pelletization obtains heat-proof combustion-resistant PVC cable material.The present invention has the advantages that：（1）Have high temperature resistance, weatherability and flame retardant property good by PVC cable material made from this method；（2）Formula in this preparation method is simply of low cost；（3）It can be produced without changing existing equipment just, be suitble to large-scale production.
Description
Technical field
The present invention relates to a kind of cable material more particularly to a kind of preparation methods of heat-proof combustion-resistant PVC cable material.
Background technology
It is basic resin, addition stabilizer, dioctyl phthalate, O-phthalic that PVC cable material, which is with polyvinyl chloride,
Sour diisodecyl ester, the inorganic fillers such as the plasticizer such as dioctyl terephthalate, trioctyl trimellitate (TOTM) and calcium carbonate, auxiliary agent
With the additives such as lubricant, the particle for squeezing out and preparing is mediated by mixture.
But polyvinyl chloride is poor to the stability of light, heat.Softening point is 80 DEG C, starts to decompose in 130 DEG C.It is being not added with
In the case of heat stabilizer, when 100 DEG C of polyvinyl chloride, starts to decompose, and 130 DEG C or more are decomposed faster.It is heated to decomposite releasing chlorine
Change hydrogen, (hydrogen chloride gas is toxic gas) makes its discoloration, by white → light yellow → red → brown → black.Sunlight
In ultraviolet light and oxygen can make polyvinyl chloride that photooxidation occur to decompose, thus the flexible of polyvinyl chloride is made to decline, last embrittlement.This
It is the reason of some PVC plastics will turn yellow, become fragile over time.
Such as a kind of one kind flame-retardant modified polyvinyl chloride resin compound cable of light heat-resisting disclosed in that in Chinese patent literature
Material and preparation method thereof, application publication number CN105482296A, the CABLE MATERIALS is made of the raw material of following parts by weight：PVC
Resin 55-65, ethylene-vinyl acetate copolymer 30-40, agate beautiful jade 0.01-0.02, expansible graphite 10-15, polytetramethylene are dragged
Glycol ether 5-8, alumina silicate 15-22, eleostearic acid 3-4, hexamethyl phenodiazine silane 3-4, cotton pulp 22-30, zinc stearate 2-4, two
Glycol dibenzoate 14-18, color masterbatch 8-10, auxiliary agent 2-3；The CABLE MATERIALS is by polyvinyl chloride resin and ethylene-vinyl acetate copolymer
It is blended and is used as resin binder, and filler is used as using modified treated cotton pulp, in conjunction with having effects that improvement processing performance
Auxiliary agent and other auxiliary materials so that the more traditional polyvinyl chloride resin of invention CABLE MATERIALS shows more excellent heat-resisting when in use
Flame retardant property.But it is added to more expansible graphite in resin binder, although it is provided with stronger flame retardant property,
But since expansible graphite is electric conductor, its insulation performance can be greatly reduced by being added in CABLE MATERIALS as filler, be caused
The generation of the danger such as electric leakage electric shock.
Invention content
In order to overcome traditional polyvinyl chloride resin CABLE MATERIALS heat resistance insufficient, easily decomposition after being illuminated by the light, weather resistance compared with
The defect of decreasing insulating after fire-retardant filler is added in difference, and good heat resistance can be had by providing one kind, light of being heated
It is not easily decomposed according to after, a kind of preparation method of heat-proof combustion-resistant PVC cable material of weather resistance and good insulation preformance.
In order to achieve the above objectives, the technical solution adopted by the present invention is as follows：
A kind of preparation method of heat-proof combustion-resistant PVC cable material, the preparation method include the following steps：
(a) synthesis of organic siliconresin modified polyamide：100 parts of caprolactam is taken to be placed in reaction kettle in parts by weight,
Temperature is increased to 135 DEG C, vacuumizes dehydration 40-60 minutes, 0.5-1.5 parts of potassium hydroxide is then added, is stirred to react 10-15 points
Then clock is added 5-15 parts of 2-3 parts of toluene di-isocyanate(TDI) and t etram-ethyltetravinylcyclotetrasiloxane, is risen after stirring evenly
High-temperature takes out to 170 DEG C after the reaction was continued 60-120 minutes, cools to obtain organic siliconresin modified polyamide；
(b) dispensing：According to 100 parts of polyvinyl chloride resin, 20-35 parts of organic siliconresin modified polyamide, 30-45 parts of amido silicon oil, phenolic aldehyde
1-3 parts of 15-30 parts of multi-epoxy resin, 20-45 parts of nano-calcium carbonate, 3-8 parts of acid binding agent, 1-3 parts of lubricant and antioxidant
Weight to weigh each component for use；
(c) batch mixing：
(c1) polyvinyl chloride resin, acid binding agent, lubricant and antioxidant are placed in vacuum kneader, under vacuum state with
It is mixed under the rate of 1000r/min, mixture temperature is controlled at 110 DEG C, and half quality is added after mixing 10-15min
Amido silicon oil continues to mix 10-15min；
(c2) rotating speed is reduced to 600r/min, and organic siliconresin modified polyamide, phenolic aldehyde multi-epoxy resin, nano-sized carbon is then added
Sour calcium and remaining amido silicon oil, continue to mix 10r/min, then increase rotating speed to 1500r/min, continue to mix 30min,
Obtain mixture；
(d) mixture obtained in step (c) is placed in extruding pelletization in double screw extruder, obtains heat-proof combustion-resistant PVC cables
Material.
Polyamide in invention is modified by organic siliconresin, particular by by caprolactam and tetramethyl tetrem
Alkenyl cyclotetrasiloxane, by ring-opening polymerisation, obtains organic siliconresin modified polyamide under base catalysis.Due to containing in its molecule
There is more vinyl, can be used as crosslinking points and generate crosslinked action, CABLE MATERIALS can be effectively improved in for CABLE MATERIALS
Mechanical property.Meanwhile vinyl structure can be used as ultraviolet absorption group, it being capable of effective shielding ultraviolet rays so that this hair
It is bright that there is good uvioresistant effect so that it is provided with good weather resistance.
Using polyvinyl chloride resin and organic siliconresin modified polyamide as basis material in the present invention, by by polyamide
It is modified by organic siliconresin, can effectively improve the processing performance of polyamide and the mixed performance with polyvinyl chloride resin, simultaneously
Strengthen whole heat resistance.Simultaneously by adding the plasticizer of amido silicon oil material as a whole, can effectively ensure that
The processability in process of resin.The addition of phenolic aldehyde multi-epoxy resin and nano-calcium carbonate can play enhancing
The effect of filler, the effective mechanical property for enhancing CABLE MATERIALS, ensure that its use intensity, while in phenolic aldehyde multi-epoxy resin
Epoxy group can occur ring-opening reaction with the amino in amido silicon oil and further enhance its mechanical property to be cured
Energy.Acid binding agent, which is added, can effectively absorb the hydrogen chloride generated because polyvinyl chloride resin decomposes, and hinder it causes as catalyst
It is further to decompose.Organic siliconresin modified polyamide, amido silicon oil and the phenolic aldehyde multi-epoxy resin used in the present invention point
Contain silicon oxygen bond in sub- main chain, there is characteristic：
(1) methyl sufficient on Si atoms gets up the polysiloxane backbone shielding of high-energy；
(2) C-H is nonpolarity, keeps intermolecular interaction very faint；
(3) Si-O bond distance is longer, and Si-O-Si key bond angles are big；
(4) Si-O keys are the covalent bonds with 50% ionic bond feature (for covalent bond with directionality, ionic bond is non-directional).
Therefore due to the unique structure of organosilicon, inorganic material and the performance of organic material have been had both, there is surface tension
The low, fundamental propertys such as viscosity-temperature coefficient is small, compressibility is high, gas permeability is high, and with high-low temperature resistant, electric insulation, resistance to oxidation
The excellent specific properties such as stability, weatherability, fire retardant, hydrophobic, corrosion-resistant, non-toxic and tasteless and physiological inertia, are widely used in aviation
The industries such as space flight, electric, building, transport, chemical industry, weaving, food, light industry, medical treatment.
Generating network-like structure by the crosslinked action of amido silicon oil and phenolic aldehyde multi-epoxy resin in the present invention has
Machine silicon back bone network can effectively improve mechanical property again while playing plasticization effect, while can be by each group
Divide and be fixedly connected in matrix resin, ensure that each component will not be lost in the variation of time and environment, ensure that this
The stability in use of CABLE MATERIALS.
Preferably, two kinds of differences that it is 1800~1650 and 1650~1500 that the polyvinyl chloride resin, which is the degree of polymerization, are poly-
The mass ratio of the mixture of right polyvinyl chloride resin, both is 1:1.
The polyvinyl chloride resin used in the present invention is two kinds of different polymerizations that the degree of polymerization is 1800~1650 and 1650~1500
The polyvinyl chloride resin mass ratio of degree is 1:1 mixture, the polyvinyl chloride resin of both degree of polymerization since it is with higher molecular weight, because
This its than the polyvinyl chloride resin of low molecular weight there is good mechanical property and good heat resisting ability accordingly.Simultaneously
The polyvinyl chloride resin that the degree of polymerization is 1650~1500 has the PVC trees that it is 1800~1650 with the degree of polymerization by good processing performance
Fat, which carries out compounding, can effectively improve the processability of resin.
Preferably, the ammonia value of the amido silicon oil is 0.3-0.6, the amido silicon oil viscosity is 1000-
1500mm2/s。
Preferably, the acid binding agent is in ammonium polyphosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate and sodium tripolyphosphate
One kind.
Acid binding agent in the present invention can decompose the hydrogen chloride generated with PVC and be combined, and reach and block polyvinyl chloride resin decomposition
Effect, while this acid binding agent also has flame-retarding characteristic so that the low temperature resistant PVC cable material that the present invention obtains can also be carried effectively
Its high flame retardant property.
Preferably, the lubricant is one kind in magnesium stearate, calcium stearate, zinc stearate or paraffin.
Preferably, the antioxidant is in bisphenol-A, antioxidant CA, antioxidant 264 and triphenyl phosphite
It is a kind of.
Preferably, each area's temperature of the extruder is as follows：1 145 DEG C of area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 4 areas 165
DEG C, 170 DEG C of 5th area, 170 DEG C of 175 DEG C of head and die orifice.
Therefore, the present invention has the advantages that：(1) there is heat-resisting quantity by PVC cable material made from this method
Energy, weatherability and flame retardant property are good；(2) formula in this preparation method is simply of low cost；(3) it is not necessarily to change existing set
It is standby just to produce, it is suitble to large-scale production.
Specific implementation mode
Technical scheme of the present invention is made to further describe explanation below by specific embodiment.
If saying the raw material that the raw material of use is commonly used in the art without specified otherwise, in the embodiment of the present invention, implement
Method employed in example, is the conventional method of this field.
Embodiment 1
A kind of preparation method of heat-proof combustion-resistant PVC cable material, the preparation method include the following steps：
(a) synthesis of organic siliconresin modified polyamide：100 parts of caprolactam is taken to be placed in reaction kettle in parts by weight,
Temperature is increased to 135 DEG C, vacuumizes dehydration 40 minutes, 0.5 part of potassium hydroxide is then added, is stirred to react 10 minutes, then adds
Enter 5 parts of 2 parts of toluene di-isocyanate(TDI) and t etram-ethyltetravinylcyclotetrasiloxane, after stirring evenly increase temperature to 170 DEG C,
The reaction was continued takes out after sixty minutes, cools to obtain organic siliconresin modified polyamide；
(b) dispensing：According to the polyvinyl chloride resin quality for two kinds of different polymerization degrees that the degree of polymerization is 1800~1650 and 1650~1500
Than being 1:1 100 parts of mixture, 20 parts of organic siliconresin modified polyamide, ammonia value are 0.3, viscosity 1000mm2The amino of/s
30 parts of silicone oil, 15 parts of phenolic aldehyde multi-epoxy resin, 20 parts of nano-calcium carbonate, 3 parts of acid binding agent-ammonium polyphosphate, lubricant-magnesium stearate
It is for use that the weight of 1 part and 1 part of antioxidant-bisphenol-A weighs each component；
(c) batch mixing：
(c1) polyvinyl chloride resin, acid binding agent, lubricant and antioxidant are placed in vacuum kneader, under vacuum state with
It is mixed under the rate of 1000r/min, mixture temperature is controlled at 110 DEG C, and the amino of half quality is added after mixing 10min
Silicone oil continues to mix 10min；
(c2) rotating speed is reduced to 600r/min, and organic siliconresin modified polyamide, phenolic aldehyde multi-epoxy resin, nano-sized carbon is then added
Sour calcium and remaining amido silicon oil, continue to mix 10r/min, then increase rotating speed to 1500r/min, continue to mix 30min,
Obtain mixture；
(d) mixture obtained in step (c) is placed in extruding pelletization in double screw extruder, obtains heat-proof combustion-resistant PVC cables
Material.
Each area's temperature of the extruder is as follows：1 145 DEG C of area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 165 DEG C of 4th area, 5 areas 170
DEG C, 170 DEG C of 175 DEG C of head and die orifice.
Embodiment 2
A kind of preparation method of heat-proof combustion-resistant PVC cable material, the preparation method include the following steps：
(a) synthesis of organic siliconresin modified polyamide：100 parts of caprolactam is taken to be placed in reaction kettle in parts by weight,
Temperature is increased to 135 DEG C, vacuumizes dehydration 60 minutes, 1.5 parts of potassium hydroxide is then added, is stirred to react 15 minutes, then adds
Enter 15 parts of 3 parts of toluene di-isocyanate(TDI) and t etram-ethyltetravinylcyclotetrasiloxane, temperature is increased after stirring evenly to 170
DEG C, it is taken out after the reaction was continued 120 minutes, cools to obtain organic siliconresin modified polyamide；
(b) dispensing：According to the polyvinyl chloride resin quality for two kinds of different polymerization degrees that the degree of polymerization is 1800~1650 and 1650~1500
Than being 1:1 100 parts of mixture, 35 parts of organic siliconresin modified polyamide, ammonia value are 0.6, viscosity 1500mm2The amino of/s
45 parts of silicone oil, 30 parts of phenolic aldehyde multi-epoxy resin, nano-calcium carbonate Ca45 part, 8 parts of acid binding agent-diammonium hydrogen phosphate, lubricant-stearic acid
It is for use that the weight of 3 parts of 3 parts of calcium and antioxidant-antioxidant CA weighs each component；
(c) batch mixing：
(c1) polyvinyl chloride resin, acid binding agent-diammonium hydrogen phosphate, lubricant-calcium stearate and antioxidant-antioxidant CA are placed in
In vacuum kneader, to be mixed under the rate of 1000r/min under vacuum state, mixture temperature is controlled at 110 DEG C, mixing
The amido silicon oil of half quality is added after 10-15min, continues to mix 15min；
(c2) rotating speed is reduced to 600r/min, and organic siliconresin modified polyamide, phenolic aldehyde multi-epoxy resin, nano-sized carbon is then added
Sour calcium and remaining amido silicon oil, continue to mix 10r/min, then increase rotating speed to 1500r/min, continue to mix 30min,
Obtain mixture；
(d) mixture obtained in step (c) is placed in extruding pelletization in double screw extruder, obtains heat-proof combustion-resistant PVC cables
Material.
Each area's temperature of the extruder is as follows：1 145 DEG C of area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 165 DEG C of 4th area, 5 areas 170
DEG C, 170 DEG C of 175 DEG C of head and die orifice.
Embodiment 3
A kind of preparation method of heat-proof combustion-resistant PVC cable material, the preparation method include the following steps：
(a) synthesis of organic siliconresin modified polyamide：100 parts of caprolactam is taken to be placed in reaction kettle in parts by weight,
Temperature is increased to 135 DEG C, vacuumizes dehydration 50 minutes, 1 part of potassium hydroxide is then added, is stirred to react 12 minutes, is then added
10 parts of 2.5 parts of toluene di-isocyanate(TDI) and t etram-ethyltetravinylcyclotetrasiloxane increase temperature to 170 after stirring evenly
DEG C, it is taken out after the reaction was continued 80 minutes, cools to obtain organic siliconresin modified polyamide；
(b) dispensing：According to the polyvinyl chloride resin quality for two kinds of different polymerization degrees that the degree of polymerization is 1800~1650 and 1650~1500
Than being 1:1 100 parts of mixture, 25 parts of organic siliconresin modified polyamide, ammonia value are 0.5, viscosity 1200mm2The amino of/s
40 parts of silicone oil, 25 parts of phenolic aldehyde multi-epoxy resin, 40 parts of nano-calcium carbonate, 6 parts of acid binding agent-ammonium dihydrogen phosphate, lubricant-stearic acid
It is for use that the weight of 2 parts of 2 parts of zinc and antioxidant-antioxidant 264 weighs each component；
(c) batch mixing：
(c1) polyvinyl chloride resin, acid binding agent, lubricant and antioxidant are placed in vacuum kneader, under vacuum state with
It is mixed under the rate of 1000r/min, mixture temperature is controlled at 110 DEG C, and the amino of half quality is added after mixing 12min
Silicone oil continues to mix 13min；
(c2) rotating speed is reduced to 600r/min, and organic siliconresin modified polyamide, phenolic aldehyde multi-epoxy resin, nano-sized carbon is then added
Sour calcium and remaining amido silicon oil, continue to mix 10r/min, then increase rotating speed to 1500r/min, continue to mix 30min,
Obtain mixture；
(d) mixture obtained in step (c) is placed in extruding pelletization in double screw extruder, obtains heat-proof combustion-resistant PVC cables
Material.
Each area's temperature of the extruder is as follows：1 145 DEG C of area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 165 DEG C of 4th area, 5 areas 170
DEG C, 170 DEG C of 175 DEG C of head and die orifice.
Embodiment 4
A kind of preparation method of heat-proof combustion-resistant PVC cable material, the preparation method include the following steps：
(a) synthesis of organic siliconresin modified polyamide：100 parts of caprolactam is taken to be placed in reaction kettle in parts by weight,
Temperature is increased to 135 DEG C, vacuumizes dehydration 45 minutes, 1 part of potassium hydroxide is then added, is stirred to react 13 minutes, is then added
15 parts of 2 parts of toluene di-isocyanate(TDI) and t etram-ethyltetravinylcyclotetrasiloxane, after stirring evenly increase temperature to 170 DEG C,
It is taken out after the reaction was continued 100 minutes, cools to obtain organic siliconresin modified polyamide；
(b) dispensing：According to the polyvinyl chloride resin quality for two kinds of different polymerization degrees that the degree of polymerization is 1800~1650 and 1650~1500
Than being 1:1 100 parts of mixture, 30 parts of organic siliconresin modified polyamide, ammonia value are 0.5, viscosity 1400mm2The amino of/s
35 parts of silicone oil, 20 parts of phenolic aldehyde multi-epoxy resin, 25 parts of nano-calcium carbonate, 7 parts of acid binding agent-sodium tripolyphosphate, lubricant-paraffin
It is for use that the weight of 2.5 parts and 1.5 parts of antioxidant-triphenyl phosphite weighs each component；
(c) batch mixing：
(c1) polyvinyl chloride resin, acid binding agent, lubricant and antioxidant are placed in vacuum kneader, under vacuum state with
It is mixed under the rate of 1000r/min, mixture temperature is controlled at 110 DEG C, and the amino of half quality is added after mixing 15min
Silicone oil continues to mix 10min；
(c2) rotating speed is reduced to 600r/min, and organic siliconresin modified polyamide, phenolic aldehyde multi-epoxy resin, nano-sized carbon is then added
Sour calcium and remaining amido silicon oil, continue to mix 10r/min, then increase rotating speed to 1500r/min, continue to mix 30min,
Obtain mixture；
(d) mixture obtained in step (c) is placed in extruding pelletization in double screw extruder, obtains heat-proof combustion-resistant PVC cables
Material.
Each area's temperature of the extruder is as follows：1 145 DEG C of area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 165 DEG C of 4th area, 5 areas 170
DEG C, 170 DEG C of 175 DEG C of head and die orifice.
Embodiment 5
A kind of preparation method of heat-proof combustion-resistant PVC cable material, the preparation method include the following steps：
(a) synthesis of organic siliconresin modified polyamide：100 parts of caprolactam is taken to be placed in reaction kettle in parts by weight,
Temperature is increased to 135 DEG C, vacuumizes dehydration 55 minutes, 1 part of potassium hydroxide is then added, is stirred to react 15 minutes, is then added
5 parts of 2 parts of toluene di-isocyanate(TDI) and t etram-ethyltetravinylcyclotetrasiloxane, after stirring evenly increase temperature to 170 DEG C, after
Continuous reaction is taken out after 120 minutes, cools to obtain organic siliconresin modified polyamide；
(b) dispensing：According to the polyvinyl chloride resin quality for two kinds of different polymerization degrees that the degree of polymerization is 1800~1650 and 1650~1500
Than being 1:1 100 parts of mixture, 35 parts of organic siliconresin modified polyamide, ammonia value are 0.3, viscosity 1000mm2The amino of/s
30 parts of silicone oil, 30 parts of phenolic aldehyde multi-epoxy resin, nano-calcium carbonate Ca45 part, acid binding agent--8 parts of ammonium polyphosphate, lubricant-stearic acid
It is for use that the weight of 2 parts of 3 parts of calcium and antioxidant-triphenyl phosphite weighs each component；
(c) batch mixing：
(c1) polyvinyl chloride resin, acid binding agent, lubricant and antioxidant are placed in vacuum kneader, under vacuum state with
It is mixed under the rate of 1000r/min, mixture temperature is controlled at 110 DEG C, and the amino of half quality is added after mixing 10min
Silicone oil continues to mix 15min；
(c2) rotating speed is reduced to 600r/min, and organic siliconresin modified polyamide, phenolic aldehyde multi-epoxy resin, nano-sized carbon is then added
Sour calcium and remaining amido silicon oil, continue to mix 10r/min, then increase rotating speed to 1500r/min, continue to mix 30min,
Obtain mixture；
(d) mixture obtained in step (c) is placed in extruding pelletization in double screw extruder, obtains heat-proof combustion-resistant PVC cables
Material.
Each area's temperature of the extruder is as follows：1 145 DEG C of area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 165 DEG C of 4th area, 5 areas 170
DEG C, 170 DEG C of 175 DEG C of head and die orifice.
To the low temperature resistant PVC cable material obtained by Examples 1 to 5, it is tested for the property, the results are shown in table below.
Low temperature resistant PVC cable material performance obtained by 1 Examples 1 to 5 of table.
From the data in upper table it is found that obtained low temperature resistant PVC cable material has outstanding resistance to low temperature and good
Good mechanical property, disclosure satisfy that the normal use under critical conditions.
Claims (7)
1. a kind of preparation method of heat-proof combustion-resistant PVC cable material, which is characterized in that the preparation method includes the following steps：
（a）The synthesis of organic siliconresin modified polyamide：100 parts of caprolactam is taken to be placed in reaction kettle in parts by weight,
Temperature is increased to 135 DEG C, vacuumizes dehydration 40-60 minutes, 0.5-1.5 parts of potassium hydroxide is then added, is stirred to react 10-15 points
Then clock is added 5-15 parts of 2-3 parts of toluene di-isocyanate(TDI) and t etram-ethyltetravinylcyclotetrasiloxane, is risen after stirring evenly
High-temperature takes out to 170 DEG C after the reaction was continued 60-120 minutes, cools to obtain organic siliconresin modified polyamide；
（b）Dispensing：According to 100 parts of polyvinyl chloride resin, 20-35 parts of organic siliconresin modified polyamide, 30-45 parts of amido silicon oil, phenolic aldehyde
1-3 parts of 15-30 parts of multi-epoxy resin, 20-45 parts of nano-calcium carbonate, 3-8 parts of acid binding agent, 1-3 parts of lubricant and antioxidant
Weight to weigh each component for use；
（c）Batch mixing：
（c1）Polyvinyl chloride resin, acid binding agent, lubricant and antioxidant are placed in vacuum kneader, under vacuum state with
It is mixed under the rate of 1000r/min, mixture temperature is controlled at 110 DEG C, and half quality is added after mixing 10-15min
Amido silicon oil continues to mix 10-15min；
（c2）Rotating speed is reduced to 600r/min, organic siliconresin modified polyamide, phenolic aldehyde multi-epoxy resin, nano-sized carbon is then added
Sour calcium and remaining amido silicon oil, continue to mix 10r/min, then increase rotating speed to 1500r/min, continue to mix 30min,
Obtain mixture；
（d）By step（c）In obtained mixture be placed in extruding pelletization in double screw extruder, obtain heat-proof combustion-resistant PVC cables
Material.
2. a kind of preparation method of heat-proof combustion-resistant PVC cable material according to claim 1, which is characterized in that the PVC
Resin is the mixture of the polyvinyl chloride resin for two kinds of different polymerization degrees that the degree of polymerization is 1800 ~ 1650 and 1650 ~ 1500, both
Mass ratio be 1:1.
3. a kind of preparation method of heat-proof combustion-resistant PVC cable material according to claim 1, which is characterized in that the ammonia
The ammonia value of base silicone oil is 0.3-0.6, and the amido silicon oil viscosity is 1000-1500 mm2/s。
4. a kind of preparation method of heat-proof combustion-resistant PVC cable material according to claim 1, which is characterized in that described ties up
Sour agent is one kind in ammonium polyphosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate and sodium tripolyphosphate.
5. a kind of preparation method of heat-proof combustion-resistant PVC cable material according to claim 1, which is characterized in that the profit
Lubrication prescription is one kind in magnesium stearate, calcium stearate, zinc stearate or paraffin.
6. a kind of preparation method of heat-proof combustion-resistant PVC cable material according to claim 1, which is characterized in that described is anti-
Oxidant is one kind in bisphenol-A, antioxidant CA, antioxidant 264 and triphenyl phosphite.
7. a kind of preparation method of heat-proof combustion-resistant PVC cable material according to claim 1, which is characterized in that described squeezes
The areas Chu Jige temperature is as follows：1 145 DEG C of area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 165 DEG C of 4th area, 170 DEG C of 5th area, 175 DEG C of head and mould
170 DEG C of mouth.
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Cited By (1)
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| CN110184739A (en) * | 2019-06-18 | 2019-08-30 | 刘涛 | A kind of recyclable polyvinyl chloride cable material of environmental protection and preparation method thereof |
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