CN116178852B - Impact-resistant PVC cable material and preparation method thereof - Google Patents
Impact-resistant PVC cable material and preparation method thereof Download PDFInfo
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- CN116178852B CN116178852B CN202211080137.3A CN202211080137A CN116178852B CN 116178852 B CN116178852 B CN 116178852B CN 202211080137 A CN202211080137 A CN 202211080137A CN 116178852 B CN116178852 B CN 116178852B
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 48
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 48
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 11
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- 239000002086 nanomaterial Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- 239000000314 lubricant Substances 0.000 claims abstract description 7
- 239000012745 toughening agent Substances 0.000 claims abstract description 7
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 6
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 38
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 37
- 229920001577 copolymer Polymers 0.000 claims description 14
- 150000001993 dienes Chemical class 0.000 claims description 14
- 229920006114 semi-crystalline semi-aromatic polyamide Polymers 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 abstract description 6
- 230000003078 antioxidant effect Effects 0.000 abstract description 5
- 238000005406 washing Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- WWNGFHNQODFIEX-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;styrene Chemical compound C=CC=C.COC(=O)C(C)=C.C=CC1=CC=CC=C1 WWNGFHNQODFIEX-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical group CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 241000237903 Hirudo Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- IQFVPQOLBLOTPF-HKXUKFGYSA-L congo red Chemical compound [Na+].[Na+].C1=CC=CC2=C(N)C(/N=N/C3=CC=C(C=C3)C3=CC=C(C=C3)/N=N/C3=C(C4=CC=CC=C4C(=C3)S([O-])(=O)=O)N)=CC(S([O-])(=O)=O)=C21 IQFVPQOLBLOTPF-HKXUKFGYSA-L 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to G08L27, in particular to an impact-resistant PVC cable material and a preparation method thereof. The raw materials of the impact-resistant PVC cable material comprise 95.4-97.2 parts by weight of polyvinyl chloride resin, 16.1-17 parts by weight of nano material, 2.1-3.7 parts by weight of stabilizer, 14-19.6 parts by weight of toughening agent, 0.4-0.58 part by weight of lubricant, 0.1-0.35 part by weight of antioxidant and 2.1-4.1 parts by weight of auxiliary agent. The temperature of the raw materials of the impact-resistant PVC cable material matched with the double-screw rod machine is 178-186 ℃, the screw speed is 400-500r/min, and the obtained PVC cable material has excellent performance when being used for an electric automobile charging pile cable and has remarkable use stability in severe environments such as high wind, rain and snow or low air temperature.
Description
Technical Field
The invention relates to G08L27, in particular to an impact-resistant PVC cable material and a preparation method thereof.
Background
In the background of modern society, industry transformation is proposed, and for the automobile industry, new energy automobiles face unprecedented opportunities, and meanwhile, peripheral matched accessories of the new energy automobiles face product upgrading.
The patent No. CN102977492B provides an environment-friendly soft PVC plastic for wires and cables at 70 ℃ with the insulation level, and the thermal stability of PVC at 180 ℃ by Congo red method is improved by adding a stabilizer DA-970, combining calcium carbonate and a plasticizer in the system. The patent No. CN106543581A provides a PVC insulating material for an automobile charging pile cable and a preparation method thereof, and the PVC insulating material is softer and has good bending property for the charging automobile cable.
Although a great deal of research has been made on the performance of PVC, for the cable PVC material for the charging pile, it should not only have good bending performance and thermal stability, but more importantly, because of long-term exposure outdoors and high frequency of use, the cable material should still maintain good properties under severe environments, especially under high wind, rain and snow or low air temperature environments.
Disclosure of Invention
In order to solve the problems, the first aspect of the invention provides an impact-resistant PVC cable material, which comprises 95.4-97.2 parts by weight of polyvinyl chloride resin, 16.1-17 parts by weight of nano material, 2.1-3.7 parts by weight of stabilizer, 14-19.6 parts by weight of toughening agent, 0.4-0.58 part by weight of lubricant, 0.1-0.35 part by weight of antioxidant and 2.1-4.1 parts by weight of auxiliary agent.
As a preferable technical scheme of the invention, the nano material is rutile type nano titanium dioxide.
As a preferable technical scheme of the invention, the surface area of the rutile type nano titanium dioxide is 5-52m 2/g.
As a preferable technical scheme of the invention, the rutile type nano titanium dioxide comprises a first rutile type nano titanium dioxide and a second rutile type nano titanium dioxide, wherein the surface area of the first rutile type nano titanium dioxide is 5-20m 2/g, the particle size is 170-210nm, the surface area of the second rutile type nano titanium dioxide is 20-50m 2/g, and the particle size is 15-30nm.
Preferably, the weight ratio of the first rutile type nano titanium dioxide to the second rutile type nano titanium dioxide is 15: (1.3-1.7).
Further preferably, the weight ratio of the first rutile nano titanium dioxide to the second rutile nano titanium dioxide is 15:1.5.
In order to ensure that the cable material can still keep good properties under severe environments, especially under high wind, rain and snow or low air temperature, and has good impact resistance, tensile property, brushing resistance and acid and alkali resistance. Through a large number of experiments, the applicant finds that the rutile type nano titanium dioxide with the surface area of 5-52m 2/g is added into the PVC cable material, so that the ageing resistance of the cable material can be improved, and the material has good impact resistance, tensile property, good brushing resistance and acid and alkali resistance. The PVC resin molecular chain, plasticizer and stabilizer act to cause stress concentration effect, thus affecting the system structure, leading the system stability to be reduced to a certain extent, leading the molecules to be easy to fall off, leading the product to be easy to crack, and the addition of rutile type nano titanium dioxide with the surface area of 5-52m 2/g leads the distribution of the plasticizer and stabilizer on the PVC resin to be affected, and the contact area between molecules to be increased, and simultaneously, the fluidity of the system to be affected due to the small size effect of nano silicon dioxide, thus leading the formed integral structure to be improved. In addition, the larger the refractive index difference between the molecules and air can be obtained through Rayleigh law, the higher the scattering of the molecules to light, the high light refractive index of rutile type, and the influence on a crosslinked network of the system is further generated, so that the structure is enhanced, and the PVC cable material has better scouring resistance and acid and alkali resistance. The effect is more excellent especially when the surface area of the first rutile type nano titanium dioxide is 5-20m 2/g, the particle size is 170-210nm, and the surface area of the second rutile type nano titanium dioxide is 20-50m 2/g, and the particle size is 15-30 nm.
Preferably, the toughening agent is diisononyl phthalate. The lubricant is polyethylene wax.
As a preferred embodiment of the invention, the auxiliary comprises a semi-crystalline polyamide, a diene-containing copolymer and a UV absorber.
As a preferred embodiment of the invention, the semi-crystalline polyamide has a density of 0.95-1.05g/cm 3.
As a preferred embodiment of the invention, the weight ratio of semi-crystalline polyamide, diene-containing copolymer and UV absorber in the auxiliary agent is (0.9-1.4): (1.1-1.7): (0.6-1.2).
As a preferred embodiment of the invention, the weight ratio of semi-crystalline polyamide, diene-containing copolymer and UV absorber in the auxiliary agent is (1-1.3): (1.2-1.6): (1-1.2).
The second aspect of the invention provides a preparation method of an impact-resistant PVC cable material, which comprises the following steps: (1) mixing by a mixer; (2) twin screw extruder extrusion.
As a preferable technical scheme of the invention, the temperature of the double-screw extruder is 178-186 ℃, and the screw rotating speed of the extruder is 400-500r/min.
Preferably, the process of the impact-resistant PVC cable material comprises the following steps: (1) mixing by a mixer: adding the raw materials into a mixer according to parts by weight, and stirring for 12-15 minutes; (2) twin screw extruder extrusion: mixing, adding into a double-screw extruder, extruding at 178-186 deg.C at 400-500 r/min.
Compared with the prior art, the invention has the following beneficial effects:
The surface area of the first rutile type nano titanium dioxide is 5-20m 2/g, the particle size is 170-210nm, the surface area of the second rutile type nano titanium dioxide is 20-50m 2/g, and the particle size is 15-30nm, so that the ageing resistance of the cable material can be improved, and the material has good impact resistance and tensile property, good brushing resistance and acid and alkali resistance. Adding a diene-containing copolymer of methyl methacrylate-butadiene-styrene and controlling the weight ratio of the semi-crystalline polyamide, the diene-containing copolymer and the UV absorber to be (1-1.3): (1.2-1.6): (1-1.2), the low-temperature impact embrittlement temperature of the PVC cable material is further improved. The temperature of the raw materials of the impact-resistant PVC cable material matched with the double-screw rod machine is 178-186 ℃, the screw speed is 400-500r/min, and the obtained PVC cable material has excellent performance when being used for an electric automobile charging pile cable and has remarkable use stability in severe environments such as high wind, rain and snow or low air temperature.
Detailed Description
Examples
The compositions of the examples were prepared from commercially available materials, wherein the polyvinyl chloride resin was purchased from Tenoer Epimes, model number155, Example 1 and example 5, the first rutile type nano titanium dioxide was purchased from the Hangzhou Jiupong New material Co., ltd, model CY-T200, surface area 5-15m 2/g, particle size 200nm, the second rutile type nano titanium dioxide was purchased from the Hangzhou Jiupong new material Co., ltd, model CY-T25S, surface area 20-40m 2/g, particle size 25nm, example 5, rutile type nano titanium dioxide was purchased from the Hangzhou Jiupong new material Co., model CY-T25F, the surface area was 100-200m 2/g, the particle size was 25nm, the semi-crystalline polyamide was purchased from EMS, switzerland, model LM-05HX nat, the density was 1.03g/cm 3, the sources of the diene-containing copolymers were different for example 1 and example 4, example 1 was purchased from Brillouin Japan, model Kane Ace722, under the name methyl methacrylate-butadiene-styrene, example 4 was purchased from Dow, model EPDM 722P, the stabilizer was purchased from Tengyue, zinc stearate, the antioxidant was purchased from Basoff, model 168, the polyethylene wax was purchased from Basoff, model LUWAX A POWDER, the UV absorber was purchased from Rianlon/Li Anlong, and the model UV 234.
Example 1
The example provides an impact-resistant PVC cable material, which comprises 96.2 parts by weight of polyvinyl chloride resin, 16.5 parts by weight of nano material, 2.5 parts by weight of stabilizer, 17.3 parts by weight of toughening agent, 0.5 part by weight of lubricant, 0.2 part by weight of antioxidant and 3.7 parts by weight of auxiliary agent.
The nano material is rutile type nano titanium dioxide. The rutile type nano titanium dioxide comprises a first rutile type nano titanium dioxide and a second rutile type nano titanium dioxide, and the weight ratio of the first rutile type nano titanium dioxide to the second rutile type nano titanium dioxide is 15:1.5.
The toughening agent is diisononyl phthalate. The lubricant is polyethylene wax.
Auxiliaries include semi-crystalline polyamides, diene-containing copolymers and UV absorbers.
In the auxiliary agent, the weight ratio of the semi-crystalline polyamide, the diene-containing copolymer and the UV absorber is 1.2:1.4:1.1.
The example also provides a preparation method of the impact-resistant PVC cable material, which comprises the following steps: (1) mixing by a mixer: adding the raw materials in parts by weight into a mixer for stirring for 15 minutes; (2) twin screw extruder extrusion: mixing, adding into a double-screw extruder, extruding at 183 deg.c at screw speed of 450 r/min.
Example 2
This example provides an impact resistant PVC cable material, identical to example 1.
The example also provides a method for preparing an impact-resistant PVC cable material, which is different from the example 1 in that the temperature of a screw rod machine is 186 ℃ and the screw rod rotating speed of an extruder is 400r/min.
Example 3
The present example provides an impact-resistant PVC cable material, differing from example 1 in that the weight ratio of the first rutile-type nano titanium dioxide to the second rutile-type nano titanium dioxide is 15:3.
The example also provides a method for preparing the impact-resistant PVC cable material, which is the same as that of the example 1.
Example 4
This example provides an impact resistant PVC cable material, differing from example 1 in the source of the diene-containing copolymer, the weight ratio of semi-crystalline polyamide, diene-containing copolymer and UV absorber being 1.3:1.5:1.2.
The example also provides a method for preparing the impact-resistant PVC cable material, which is the same as that of the example 1.
Example 5
The present example provides an impact-resistant PVC cable material, which is different from example 1 in that the raw materials of the impact-resistant PVC cable material include 97.2 parts by weight of a polyvinyl chloride resin, 17 parts by weight of a nanomaterial, 3.2 parts by weight of a stabilizer, 19.1 parts by weight of a toughening agent, 0.55 parts by weight of a lubricant, 0.25 parts by weight of an antioxidant, and 3.2 parts by weight of an auxiliary agent.
The sources of the rutile type nano titanium dioxide are different, the rutile type nano titanium dioxide is purchased from Jiupong new material Co., ltd., model is CY-T25F, the surface area is 100-200m 2/g, and the particle size is 25nm.
The example also provides a method for preparing the impact-resistant PVC cable material, which is the same as that of the example 1.
Performance test:
1. Wash resistance test: after the impact-resistant PVC cable materials obtained in examples 1 to 5 were washed 4000 times and 6000 times, respectively, using a multifunctional washing-resistant instrument (available from Instrument Co., ltd. In Su., a noon, a test was conducted according to GB/T2951.11-200 to determine elongation at break of 8 before washing, 4000 times and 6000 times, and the results are shown in Table 1:
TABLE 1
| Examples | Before washing (%) | 4000 Times of washing (%) | 6000 Times of washing (%) |
| 1 | 163 | 161 | 155 |
| 2 | 160 | 150 | 142 |
| 3 | 154 | 152 | 143 |
| 4 | 149 | 138 | 134 |
| 5 | 150 | 124 | 116 |
2. Water resistance and rain resistance test: 100g of the impact-resistant PVC cable material obtained in examples 1 to 5 was immersed in 1L of tap water and 1LpH of 5.6 aqueous hydrochloric acid (simulated rainwater) for 240 hours, and during this period, an ultraviolet lamp (available from Shandong Gai Xiangyun Lighting engineering Co., ltd.) was used to irradiate for 5 hours every 12 hours, and the occurrence of discoloration and cracking after 72 hours was observed, and the results are shown in Table 2:
TABLE 2
3. Low temperature impact catalysis test: the impact resistant PVC cable materials obtained in examples 1-5 were tested for low temperature impact catalysis at-40℃using a low temperature impact embrittlement temperature tester (from Hirudo instruments) according to GB5470-2008, and the results showed that the results of examples 1-4 were all passed, and that example 5 did not.
Claims (6)
1. The impact-resistant PVC cable material is characterized by comprising, by weight, 95.4-97.2 parts of polyvinyl chloride resin, 16.1-17 parts of nano materials, 2.1-3.7 parts of stabilizers, 14-19.6 parts of toughening agents, 0.4-0.58 part of lubricants, 0.1-0.35 part of antioxidants and 2.1-4.1 parts of auxiliary agents;
The nano material is rutile type nano titanium dioxide; the rutile type nano titanium dioxide comprises first rutile type nano titanium dioxide and second rutile type nano titanium dioxide, wherein the surface area of the first rutile type nano titanium dioxide is 5-20m 2/g, the particle size is 170-210nm, the surface area of the second rutile type nano titanium dioxide is 20-50m 2/g, and the particle size is 15-30nm;
The weight ratio of the first rutile type nano titanium dioxide to the second rutile type nano titanium dioxide is 15: (1.3-1.7);
the auxiliary agent comprises semi-crystalline polyamide, diene-containing copolymer and UV absorber;
the model of the diene-containing copolymer is Kane Ace722.
2. The impact resistant PVC cable material of claim 1, wherein the semi-crystalline polyamide has a density of 0.95-1.05g/cm 3.
3. The impact resistant PVC cable material according to claim 2, wherein the weight ratio of semi-crystalline polyamide, diene-containing copolymer and UV absorber in the auxiliary agent is (0.9-1.4): (1.1-1.7): (0.6-1.2).
4. An impact resistant PVC cable material according to claim 3, wherein the weight ratio of semi-crystalline polyamide, diene containing copolymer and UV absorber in the auxiliary agent is (1-1.3): (1.2-1.6): (1-1.2).
5. A process for the preparation of an impact-resistant PVC cable material according to any one of claims 1 to 4, characterized in that it comprises the following steps: (1) mixing by a mixer; (2) twin screw extruder extrusion.
6. The method for preparing an impact-resistant PVC cable material according to claim 5, wherein the temperature of the double screw extruder is 178-186 ℃, and the screw speed of the extruder is 400-500r/min.
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Effective date of registration: 20241022 Address after: No. 77 Chuangye Road, Zhulin Town, Jintan District, Changzhou City, Jiangsu Province, China 213241 Patentee after: Changzhou Langxin Energy Materials Co.,Ltd. Country or region after: China Address before: 224000 Jiankang Road, Nanyang Town, Dafeng District, Yancheng City, Jiangsu Province Patentee before: Jiangsu Yancheng Langchuang Nano New Materials Co.,Ltd. Country or region before: China |