CN112480573A - Modified polyvinyl chloride cable material, preparation method thereof and cable - Google Patents
Modified polyvinyl chloride cable material, preparation method thereof and cable Download PDFInfo
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- CN112480573A CN112480573A CN202011440314.5A CN202011440314A CN112480573A CN 112480573 A CN112480573 A CN 112480573A CN 202011440314 A CN202011440314 A CN 202011440314A CN 112480573 A CN112480573 A CN 112480573A
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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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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
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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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- 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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Abstract
The invention discloses a modified polyvinyl chloride cable material, a preparation method thereof and a cable. The modified polyvinyl chloride cable material comprises the following components in parts by weight: 100 parts of polyvinyl chloride resin, 20-80 parts of plasticizer I, 0-25 parts of plasticizer II, 2-8 parts of stabilizer, 10-50 parts of filler, 4-10 parts of flame retardant and 1-3 parts of colorant. According to the embodiment of the invention, the plasticizer I of the modified polyvinyl chloride cable material is endowed with excellent precipitation resistance and migration resistance through the preferable synergistic effect between the plasticizer I and the plasticizer II, and meanwhile, the modified polyvinyl chloride cable material has excellent aging resistance, heat resistance, solvent resistance and extraction resistance, the preparation method has easily controlled process conditions, and the prepared modified polyvinyl chloride cable material has stable performance and high efficiency, and is suitable for industrial production. The insulating layer contained in the cable comprises the modified polyvinyl chloride cable material provided by the embodiment of the invention.
Description
Technical Field
The invention belongs to the technical field of cable materials, and particularly relates to a modified polyvinyl chloride cable material, a preparation method thereof and a cable.
Background
Polyvinyl chloride (PVC) is a thermoplastic with excellent properties and is widely used in the wire and cable industry due to its convenient processing, excellent flame retardancy, and low cost. The polyvinyl chloride cable material has better flame retardance and good processability, and the cost is low.
With the demands of production and market, the requirements for processability and flexibility of polyvinyl chloride cable materials are higher and higher, and in order to endow the polyvinyl chloride cable materials with high processability and flexibility, it is now common practice to add a large amount of plasticizer, such as TOTM plasticizer, into the polyvinyl chloride cable materials. However, in the actual long-term use process, the migration of the plasticizer in the cable material easily causes the cable material to become hard and brittle, and the migration of the plasticizer easily pollutes parts in contact with the cable material, so that if the product is in close contact with a human body, the health and safety of the human body are further influenced.
Therefore, TCO certification definitely limits the content of harmful factors in the product on the list so as to achieve the effect of protecting the ecological environment. On the list of TCO-limiting substances, the plasticizer TOTM used in polyvinyl chloride cable materials is planned to be prohibited from use in 1 month of 2021.
In order to inhibit migration of the plasticizer out of the polyvinyl chloride cable material, it is conventional to add a high molecular weight polyester plasticizer. But the adipic acid and glutaric acid series polyester plasticizer products which are commercially available in the market are prepared by using petroleum resources as raw materials, have high production cost and do not meet the requirements of sustainable development of resources.
Therefore, how to effectively reduce or avoid the use of harmful plasticizers and improve the migration resistance of the plasticizers or further reduce the cost of polyvinyl chloride cable materials has been a problem that developers in the field try to solve.
Disclosure of Invention
The invention aims to provide a modified polyvinyl chloride cable material and a preparation method thereof, and aims to solve the technical problems that a plasticizer is easy to migrate and separate out, so that health hazards are caused or the cost is high.
The invention aims to provide a cable, which aims to solve the technical problems that the existing cable is easy to cause the migration and precipitation of a plasticizer or high in cost and the like due to the polyvinyl chloride cable material.
In order to achieve the above objects, according to one aspect of the present invention, there is provided a modified polyvinyl chloride cable material. The modified polyvinyl chloride cable material comprises the following components in parts by weight:
wherein, the plasticizer I comprises di (monoacetyl, monoepoxy oleoyl) glyceride adipate, and the plasticizer II comprises epoxidized soybean oil.
In another aspect of the invention, a preparation method of the modified polyvinyl chloride cable material is provided. The preparation method of the modified polyvinyl chloride cable material comprises the following steps:
weighing the components according to the formula of the modified polyvinyl chloride cable material;
mixing the weighed polyvinyl chloride resin with part of plasticizer at the temperature higher than 15 ℃ to obtain a mixture;
adding the rest of the plasticizer and the rest of the components into the mixture for hot mixing treatment;
and plasticating the mixture subjected to the thermal mixing treatment to obtain the modified polyvinyl chloride cable material.
In yet another aspect of the present invention, a cable is provided. The cable comprises a conductive electric core and an insulating layer coated on the conductive electric core, wherein the material of the insulating layer comprises the modified polyvinyl chloride cable material or the modified polyvinyl chloride cable material prepared by the preparation method of the modified polyvinyl chloride cable material.
Compared with the prior art, the invention has the following technical effects:
the plasticizer I contained in the modified polyvinyl chloride cable material has good compatibility, and after the plasticizer I reacts with other components, the modified polyvinyl chloride cable material is endowed with high precipitation resistance and migration resistance of the plasticizer, and meanwhile, the modified polyvinyl chloride cable material has excellent aging resistance, heat resistance and solvent extraction resistance.
When the plasticizer I and the plasticizer II are compounded into the modified polyvinyl chloride cable material, the two plasticizers have good compatibility, the two plasticizers can play a role in synergism when being compounded, the plasticizer I and the plasticizer II have effective good compatibility when being compounded, and the epoxy group of epoxidized soybean oil in the plasticizer II can be locked by the molecular group of di (monoacetyl, monoepoxyoxyl) glyceride adipate in the plasticizer I, so that the use amount of the epoxidized soybean oil in the plasticizer II can be effectively increased, and if the addition ratio of the epoxidized soybean oil can reach more than 25PHR, the economic cost can be reduced. And the plasticizer I and the plasticizer II are compounded for use, so that after the plasticizer I and the plasticizer II act with other components, the modified polyvinyl chloride cable material is endowed with high precipitation resistance and migration resistance of the plasticizer, no oil precipitation phenomenon occurs in practical tests, and the modified polyvinyl chloride cable material has excellent aging resistance, heat resistance and solvent extraction resistance, so that the modified polyvinyl chloride cable material not only meets the requirement that the temperature resistance grade of the material reaches 105 ℃ of the UL758 standard, but also meets the requirement of the TCO standard.
According to the preparation method of the modified polyvinyl chloride cable material, the material mixing treatment and plastication treatment are carried out according to the formula components of the modified polyvinyl chloride cable material, so that the prepared modified polyvinyl chloride cable material has high precipitation resistance and migration resistance of a plasticizer, and has excellent aging resistance, heat resistance and solvent extraction resistance, and the modified polyvinyl chloride cable material meets the requirements that the temperature resistance grade of the material reaches 105 ℃ of the UL758 standard and also meets the TCO standard. And the preparation method has easily controlled process conditions, and the prepared modified polyvinyl chloride cable material has stable performance and high efficiency, and is suitable for industrial production.
The insulating layer of the cable contains the modified polyvinyl chloride cable material, so that the cable has the characteristics of high temperature resistance and high solvent resistance, is environment-friendly, safe and ageing-resistant, and effectively prolongs the service life and improves the use stability of the cable.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application more clearly apparent, the present application is further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In this application, the term "and/or" describes an association relationship of associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a is present alone, A and B are present simultaneously, and B is present alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In the present application, "at least one" means one or more, "a plurality" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, "at least one (a), b, or c", or "at least one (a), b, and c", may each represent: a, b, c, a-b (i.e., a and b), a-c, b-c, or a-b-c, wherein a, b, and c may be single or plural, respectively.
It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The weight of the related components mentioned in the description of the embodiments of the present application may not only refer to the specific content of each component, but also represent the proportional relationship of the weight among the components, and therefore, the content of the related components is scaled up or down within the scope disclosed in the description of the embodiments of the present application as long as it is scaled up or down according to the description of the embodiments of the present application. Specifically, the mass described in the specification of the embodiments of the present application may be a mass unit known in the chemical industry field such as μ g, mg, g, kg, etc.
The terms "first" and "second" are used for descriptive purposes only and are used for distinguishing purposes such as substances from one another, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. For example, a first XX may also be referred to as a second XX, and similarly, a second XX may also be referred to as a first XX, without departing from the scope of embodiments of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In one aspect, the embodiment of the invention provides a modified polyvinyl chloride cable material. The modified polyvinyl chloride cable material comprises the following components in parts by weight:
wherein, the plasticizer I comprises di (monoacetyl, monoepoxy oleoyl) glyceride adipate, and the plasticizer II comprises epoxidized soybean oil.
Thus, when the modified polyvinyl chloride cable material of the embodiment of the invention contains the plasticizer I, the plasticizer I has good compatibility, and after the plasticizer I reacts with other components, the modified polyvinyl chloride cable material is endowed with high precipitation resistance and migration resistance of the plasticizer, and simultaneously has excellent aging resistance, heat resistance and solvent extraction resistance.
When the modified polyvinyl chloride cable material contains the compound plasticizer of the plasticizer I and the plasticizer II, the two plasticizers have good compatibility, the two plasticizers can play a role in synergism after being compounded, the plasticizer I and the plasticizer II have effective and good compatibility after being compounded, and the epoxy group of epoxidized soybean oil in the plasticizer II can be locked by the molecular group of di (monoacetyl, monoepoxy oleoyl) glyceride adipate in the plasticizer I, so that the use amount of the epoxidized soybean oil in the plasticizer II can be effectively increased, and if the addition ratio of the epoxidized soybean oil can reach more than 25PHR, the economic cost can be reduced. And the plasticizer I and the plasticizer II are compounded for use, so that after the plasticizer I and the plasticizer II act with other components, the modified polyvinyl chloride cable material is endowed with high precipitation resistance and migration resistance of the plasticizer, no oil precipitation phenomenon occurs in practical tests, and the modified polyvinyl chloride cable material has excellent aging resistance, heat resistance and solvent extraction resistance, so that the modified polyvinyl chloride cable material not only meets the requirement that the temperature resistance grade of the material reaches 105 ℃ of the UL758 standard, but also meets the requirement of the TCO standard.
The polyvinyl chloride resin contained in the modified polyvinyl chloride cable material is used as a matrix component, and in one embodiment, the polymerization degree of the polyvinyl chloride resin is 1000-1300. The PVC resin with the optimized polymerization degree has good overall performance, such as less branched chains, good stability, loose resin particles and the like, so that the preparation of the modified polyvinyl chloride cable material which simultaneously meets the requirements of impact resistance, oil resistance, chemical corrosion resistance and thermal stability is facilitated.
The plasticizer I contained in the modified polyvinyl chloride cable material comprises adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride. The adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride CAS NO.2101439-53-4 has a relatively high molecular weight (1900-2400). Specifically, the adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride can be a plasticizer with the product model of HM-828-2 EC. The plasticizer for the HM-828-2EC may be HM-828-2EC manufactured by Hai Feima, Guangzhou. The adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride has good compatibility, precipitation resistance, migration resistance, aging resistance, heat resistance, solvent resistance and extraction resistance. After the plasticizer I containing the adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride is used as the plasticizer of the polyvinyl chloride cable material, the plasticizer I can have excellent compatibility with polyvinyl chloride, the structure of the oxalic acid polyester in a molecular chain can tightly lock an epoxy group of the plasticizer II which is relatively active, the phenomenon that the plasticizer II is separated out due to poor compatibility with the polyvinyl chloride is prevented, the using amount of the plasticizer II can be greatly increased, the plasticizer II is matched for use according to the experimental data 1:1, the phenomenon that the plasticizer II is still not separated out when the using amount of the plasticizer II is 25PHR, if other plasticizers such as TOTM, terephthalic acid and the like are matched with the plasticizer II for use, the obvious separation condition is generated when the using amount of the plasticizer II exceeds 8PHR, and therefore, the polyvinyl chloride cable material has excellent migration resistance, aging resistance and heat resistance, solvent resistance and extraction resistance. In specific embodiments, the plasticizer I may be present in an amount of 20 parts, 25. + -. 3 parts, 30. + -. 3 parts, 35. + -.3 parts, 40. + -.3 parts, 45. + -.3 parts, 50 parts, etc. In a preferred embodiment, the plasticizer I is present in an amount of 25 to 60 parts.
The plasticizer II contained in the modified polyvinyl chloride cable material comprises epoxidized soybean oil. The epoxidized soybean oil contains epoxy groups, and the epoxy groups have strong activity, so that the compatibility of the epoxidized soybean oil with polyvinyl chloride resin is not ideal due to the molecular structure and other reasons, and the epoxidized soybean oil is usually only used for an auxiliary plasticizer of a polyvinyl chloride material, so that the epoxidized soybean oil is added in a proportion of not more than 8PHR and has a precipitation risk when the PHR value is higher than the PHR value in conventional use. In the embodiment of the invention, the plasticizer I and the plasticizer II are compounded to play a role in synergism, the plasticizer I and the plasticizer II are compounded to have effective and good compatibility, and the molecular group of the adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride in the plasticizer I can lock an epoxy group of epoxidized soybean oil in the plasticizer II, so that the use amount of the epoxidized soybean oil in the plasticizer II can be effectively increased, for example, the addition proportion of the epoxidized soybean oil can reach more than 25PHR, the phenomenon of poor precipitation and migration of the plasticizer such as the epoxidized soybean oil can not be caused, the modified polyvinyl chloride cable material is endowed with high precipitation resistance and migration resistance of the plasticizer, the oil precipitation phenomenon can not occur in practical tests, and the modified polyvinyl chloride cable material has excellent aging resistance, heat resistance, solvent resistance and extraction resistance, so that the modified polyvinyl chloride cable material not only meets the requirement that the temperature resistance grade of the material reaches 105 ℃ of the UL758 standard, but also to meet the requirements of TCO standards. Meanwhile, the use amount of the plasticizer II can be increased, so that the use amount of the plasticizer I can be properly reduced, and the economic cost of the modified polyvinyl chloride cable material is effectively reduced. In specific embodiments, the plasticizer II may be present in an amount of 0 parts, 5. + -.3 parts, 10. + -.3 parts, 15. + -.3 parts, 20. + -.3 parts, 25 parts, etc. In a preferred embodiment, the plasticizer II is present in an amount of 10 to 25 parts.
In one embodiment, the mass ratio of the di (monoacetyl, monoepoxy oleoyl) glyceride adipate to epoxidized soybean oil is 25 (25-1), specifically 35:15, 40:10, 50:0, and preferably 25: 25. Wherein the range of 25-1, inclusive, denoted by (25-1). The content of the adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride and the epoxidized soybean oil is optimized to enhance the synergistic effect of the adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride and the epoxidized soybean oil, so that the modified polyvinyl chloride cable material has high precipitation resistance, migration resistance, aging resistance, heat resistance and solvent extraction resistance, and on the basis, the usage amount of the epoxidized soybean oil can be properly increased, and the economic cost of the modified polyvinyl chloride cable material is reduced.
The stabilizer contained in the modified polyvinyl chloride cable material is used as an important component for adjusting the thermal stability of the modified polyvinyl chloride cable material, and in the embodiment, the stabilizer comprises at least one of a calcium zinc stabilizer, an organic heat stabilizer and a barium zinc stabilizer. Wherein, the calcium-zinc stabilizer can be selected from environment-friendly nontoxic calcium-zinc system high-performance stabilizer W303 produced by Zhaoqing Sendeli company or/and environment-friendly nontoxic calcium-zinc system high-performance stabilizer A-2071/DY produced by bear brand company, and the stabilizers have excellent aging resistance and thermal stability. In particular embodiments, the stabilizer may be present in an amount of 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, and the like.
The filler contained in the modified polyvinyl chloride cable material can effectively adjust the mechanical property of the modified polyvinyl chloride cable material, such as playing a role in reinforcing, and can effectively reduce the economic cost. In an embodiment, the filler comprises at least one of calcium carbonate, calcined kaolin, silica. Wherein, the calcium carbonate can be selected from superfine calcium carbonate powder (passing through 2800 meshes) produced by a physical method or nano calcium carbonate produced by a chemical method, and the filler has uniform particle size and can be effectively dispersed, thereby playing a good reinforcing role. In particular embodiments, the amount of filler can be 10 parts, 15 parts ± 3 parts, 20 parts ± 3 parts, 25 ± 3 parts, 30 ± 3 parts, 35 ± 3 parts, 40 parts ± 3, 45 ± 3 parts, 50 parts, and the like.
The flame retardant contained in the modified polyvinyl chloride cable material can provide excellent flame retardancy to the modified polyvinyl chloride cable material, and in the embodiment, the flame retardant comprises at least one of antimony trioxide, magnesium hydroxide, aluminum hydroxide and silicates. In particular embodiments, the flame retardant may be present in an amount of 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, and the like.
The coloring agent contained in the modified polyvinyl chloride cable material can endow the modified polyvinyl chloride cable material with good color and luster, and meet the color requirement of the market. In an embodiment, the colorant comprises at least one of carbon black, titanium dioxide, and organic pigments. In specific embodiments, the colorant may be present in an amount of 1 part, 2 parts, 3 parts, etc.
Therefore, the embodiment of the invention endows the modified polyvinyl chloride cable material with excellent precipitation resistance and migration resistance of the plasticizer through the plasticizer I, preferably through the synergistic interaction between the plasticizer I and the plasticizer II, and has excellent aging resistance, heat resistance and solvent extraction resistance, so that the modified polyvinyl chloride cable material not only meets the requirement that the temperature resistance grade of the material reaches 105 ℃ of the UL758 standard, but also meets the requirement of the TCO standard, and the economic cost of the modified polyvinyl chloride cable material can be effectively reduced. In addition, the precipitation resistance, migration property, flame retardance, mechanical property and the like of the plasticizer can be further improved by optimizing the types and the contents of the components.
Accordingly, the embodiment of the invention provides a preparation method of the modified polyvinyl chloride cable material. The preparation method of the modified polyvinyl chloride cable material comprises the following steps:
s01, weighing the components according to the formula of the modified polyvinyl chloride cable material;
s02, mixing the weighed polyvinyl chloride resin with a part of plasticizer at a temperature higher than 15 ℃ to obtain a mixture;
s03, adding the rest of the plasticizer and the rest of the components into the mixture for hot mixing treatment;
and S04, plasticating the mixture subjected to the thermal mixing treatment to obtain the modified polyvinyl chloride cable material.
Specifically, in the step S01, the formula of the modified pvc cable material, the preferred type and content thereof are the components and content contained in the modified pvc cable material, and therefore, for the sake of brevity, the description thereof is omitted here.
In the above step S02, a part of the plasticizer is mixed with the polyvinyl chloride resin at a temperature higher than 15 ℃, at which the plasticizer has good fluidity and easy absorbability, so that the plasticizer can be sufficiently mixed with and contacted with the polyvinyl chloride resin during the mixing process and the plasticizer can be sufficiently absorbed by the polyvinyl chloride resin. In the embodiment, in the mixing treatment, the added part of the plasticizer accounts for 50-70%, specifically 70%, of the total amount of the weighed plasticizer I and the plasticizer II.
In the above step S03, the thermal mixing process enables sufficient mixing of the components. In one embodiment, the temperature of the thermal mixing process is 120 ℃ to 140 ℃. In another embodiment, the thermal mixing process may be performed by mixing the mixture at a low stirring speed, for example, 5 to 8 minutes, and then performing high-speed mixing for 5 to 8 minutes. The components can be uniformly mixed by optimally controlling the temperature and the mixing mode along with the thermal mixing treatment.
In the step S04, the plastication treatment is performed to make the components fully act under high temperature shearing, so that the formed modified polyvinyl chloride cable material has the excellent precipitation resistance and migration resistance of the plasticizer, and also has excellent aging resistance, heat resistance, solvent resistance, extraction resistance and mechanical properties, so that the modified polyvinyl chloride cable material not only meets the requirement that the temperature resistance of the material meets 105 ℃ of the UL758 standard, but also meets the requirement of the TCO standard, and the economic cost of the modified polyvinyl chloride cable material can be effectively reduced.
In the examples, the plastication treatment may be carried out by melt extrusion, for example, by melt extrusion of the mixture after the hot mixing treatment in a twin-screw granulator at a temperature of 130 ℃ to 180 ℃ and further 150 ℃ to 180 ℃. After melt extrusion, treatments such as pelletizing and cooling can be performed.
Therefore, the modified polyvinyl chloride cable material prepared by the preparation method of the modified polyvinyl chloride cable material not only has the excellent performance of the modified polyvinyl chloride cable material, but also has the advantages of easily controlled process conditions, stable performance and high efficiency of the prepared modified polyvinyl chloride cable material, and is suitable for industrial production.
On the other hand, based on the modified polyvinyl chloride cable material and the preparation method thereof, the embodiment of the invention also provides a cable. The cable comprises a conductive electric core and an insulating layer coated on the conductive electric core. Wherein, the material of the insulating layer at least comprises the modified polyvinyl chloride cable material of the embodiment of the invention. Therefore, the cable has the characteristics of high temperature resistance and high solvent resistance, is environment-friendly and safe, is ageing-resistant, and effectively prolongs the service life and improves the use stability of the cable.
The modified polyvinyl chloride cable material, the preparation method and the application thereof according to the embodiment of the invention are illustrated by a plurality of specific examples.
Example 1
The embodiment provides a modified polyvinyl chloride cable material and a preparation method thereof. The modified polyvinyl chloride cable material comprises the following components in parts by weight:
100 parts of PVC powder, 50 parts of calcium carbonate, 50 parts of HM-828-2EC, 0 part of epoxidized soybean oil, 3032 parts of W, 4 parts of antimony trioxide and 1 part of colorant.
The preparation method of the modified polyvinyl chloride cable material comprises the following steps:
s1, weighing the components according to the formula of the modified polyvinyl chloride cable material;
s2, fully mixing 70% of HM-828-2EC with PVC powder at a temperature higher than 15 ℃ to obtain a mixture;
s3, adding the rest of the plasticizer and the rest of the components into the mixture, firstly stirring and mixing at a low speed at the temperature of 130 +/-10 ℃, and after mixing for 5-8 minutes, carrying out high-speed mixing for 5-8 minutes;
and S4, adding the mixture subjected to the hot mixing treatment into a double-screw granulator, plasticizing at the temperature of 150-180 ℃, and finally granulating and cooling to obtain a finished product.
Example 2
The embodiment provides a modified polyvinyl chloride cable material and a preparation method thereof. The modified polyvinyl chloride cable material comprises the following components in parts by weight:
100 parts of PVC powder, 50 parts of calcium carbonate, 25 parts of HM-828-2EC, 25 parts of epoxidized soybean oil, 8 parts of A-2701/DY, 10 parts of antimony trioxide and 1 part of colorant.
Preparation method of modified polyvinyl chloride cable material the modified polyvinyl chloride cable material was prepared according to the method of example 1.
Example 3
The embodiment provides a modified polyvinyl chloride cable material and a preparation method thereof. The modified polyvinyl chloride cable material comprises the following components in parts by weight:
100 parts of PVC powder, 10 parts of calcium carbonate, 30 parts of HM-828-2EC, 20 parts of epoxidized soybean oil, 5 parts of A-2701/DY, 5 parts of antimony trioxide and 2 parts of colorant.
Preparation method of modified polyvinyl chloride cable material the modified polyvinyl chloride cable material was prepared according to the method of example 1.
Example 4
The embodiment provides a modified polyvinyl chloride cable material and a preparation method thereof. The modified polyvinyl chloride cable material comprises the following components in parts by weight:
100 parts of PVC powder, 30 parts of calcium carbonate, 40 parts of HM-828-2EC, 10 parts of epoxidized soybean oil, 6 parts of A-2701/DY, 7 parts of antimony trioxide and 2 parts of colorant.
Example 5
The embodiment provides a modified polyvinyl chloride cable material and a preparation method thereof. The modified polyvinyl chloride cable material comprises the following components in parts by weight:
100 parts of PVC powder, 30 parts of calcium carbonate, 80 parts of HM-828-2EC, 10 parts of epoxidized soybean oil, 6 parts of A-2701/DY, 7 parts of antimony trioxide and 2 parts of colorant.
Comparative example 1
The embodiment provides a polyvinyl chloride cable material and a preparation method thereof. The polyvinyl chloride cable material comprises the following components in parts by weight:
100 parts of PVC powder, 10 parts of calcium carbonate, 10 parts of HM-828-2EC, 40 parts of epoxidized soybean oil, 5 parts of A-2701/DY, 5 parts of antimony trioxide and 2 parts of colorant.
Comparative example 2
The embodiment provides a polyvinyl chloride cable material and a preparation method thereof. The polyvinyl chloride cable material comprises the following components in parts by weight:
100 parts of PVC powder, 10 parts of calcium carbonate, 20 parts of HM-828-2EC, 30 parts of epoxidized soybean oil, 5 parts of A-2701/DY, 5 parts of antimony trioxide and 2 parts of colorant.
Comparative example 3
The embodiment provides a polyvinyl chloride cable material and a preparation method thereof. The polyvinyl chloride cable material comprises the following components in parts by weight:
100 parts of PVC powder, 10 parts of calcium carbonate, 0 part of HM-828-2EC, 50 parts of epoxidized soybean oil, 5 parts of A-2701/DY, 5 parts of antimony trioxide and 2 parts of colorant.
Polyvinyl chloride cable material performance test
The modified polyvinyl chloride cable materials provided in examples 1 to 4 and the polyvinyl chloride cable material provided in the comparative example were respectively subjected to the related performance tests in the following table 1, and the test results are shown in the following table 1:
TABLE 1
As can be seen from the relevant performance data tested in Table 1, the modified polyvinyl chloride cable material provided by the embodiment of the invention has high precipitation resistance and migration resistance of a plasticizer, and also has excellent aging resistance, heat resistance, solvent resistance and extraction resistance, so that the modified polyvinyl chloride cable material not only meets the requirement that the temperature resistance grade of the material reaches 105 ℃ of the UL758 standard, but also meets the requirement of the TCO standard, and is environment-friendly and safe.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The modified polyvinyl chloride cable material is characterized by comprising the following components in parts by weight:
wherein, the plasticizer I comprises di (monoacetyl, monoepoxy oleoyl) glyceride adipate, and the plasticizer II comprises epoxidized soybean oil.
2. The modified polyvinyl chloride cable material of claim 1, wherein: the mass ratio of the adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride to the epoxidized soybean oil is 25 (25-1)/or
25-60 parts of plasticizer I; and/or
10-25 parts of plasticizer II.
3. The modified polyvinyl chloride cable material of claim 1, wherein: the polymerization degree of the polyvinyl chloride resin is 1000-1300.
4. The modified polyvinyl chloride cable material according to any one of claims 1 to 3, wherein: the stabilizer is at least one of calcium zinc stabilizer, organic heat stabilizer and barium zinc stabilizer.
5. The modified polyvinyl chloride cable material of claim 4, wherein: the calcium zinc stabilizer comprises at least one of W303, A-2071/DY, A-290 and RUP-110C.
6. The modified polyvinyl chloride cable material according to any one of claims 1 to 3, wherein: the flame retardant comprises at least one of antimony trioxide, magnesium hydroxide, aluminum hydroxide and silicate; and/or
The filler comprises at least one of calcium carbonate, calcined kaolin and silica.
7. The modified polyvinyl chloride cable material according to any one of claims 1 to 3, wherein: the colorant comprises at least one of carbon black, titanium dioxide and organic pigment.
8. A preparation method of a modified polyvinyl chloride cable material comprises the following steps:
weighing the components according to the formula of the modified polyvinyl chloride cable material as defined in any one of claims 1 to 7;
mixing the weighed polyvinyl chloride resin with part of plasticizer at the temperature higher than 15 ℃ to obtain a mixture;
adding the rest of the plasticizer and the rest of the components into the mixture for hot mixing treatment;
and plasticating the mixture subjected to the thermal mixing treatment to obtain the modified polyvinyl chloride cable material.
9. The method of claim 8, wherein: in the step of mixing the weighed polyvinyl chloride resin and part of the plasticizer at the temperature higher than 15 ℃, the plasticizer accounts for 50-70% of the total weight of the weighed plasticizer I and the plasticizer II; and/or
The temperature of the thermal mixing treatment is 120-140 ℃; and/or
The plastication treatment method is melt extrusion, and the temperature is 130-180 ℃.
10. The utility model provides a cable, including electrically conductive electric core and cladding in the insulating layer of electrically conductive electric core, its characterized in that: the material of the insulating layer comprises the modified polyvinyl chloride cable material according to any one of claims 1 to 7 or the modified polyvinyl chloride cable material prepared by the preparation method according to any one of claims 8 to 9.
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| CN115109352A (en) * | 2022-07-01 | 2022-09-27 | 巢湖市金鸿电缆有限公司 | Tear-resistant cable protective sleeve and preparation method thereof |
| CN117777617A (en) * | 2023-12-26 | 2024-03-29 | 广东胜德过电线电缆厂有限公司 | Anti-aging PVC cable and preparation process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548579A (en) * | 2020-01-17 | 2020-08-18 | 江西博硕电子有限公司 | Migration-resistant polyvinyl chloride cable material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548579A (en) * | 2020-01-17 | 2020-08-18 | 江西博硕电子有限公司 | Migration-resistant polyvinyl chloride cable material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115109352A (en) * | 2022-07-01 | 2022-09-27 | 巢湖市金鸿电缆有限公司 | Tear-resistant cable protective sleeve and preparation method thereof |
| CN115109352B (en) * | 2022-07-01 | 2023-12-01 | 巢湖市金鸿电缆有限公司 | Tear-resistant cable protective sleeve and preparation method thereof |
| CN117777617A (en) * | 2023-12-26 | 2024-03-29 | 广东胜德过电线电缆厂有限公司 | Anti-aging PVC cable and preparation process thereof |
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