Epoxy fatty acid methyl ester wire and cable material and preparation method thereof

Abstract

The invention is suitable for the technical field of wire and cable materials, and provides an epoxy fatty acid methyl ester wire and cable material and a preparation method thereof. Comprising the following components: 2-5 parts of epoxy fatty acid methyl ester, 30-45 parts of PVC resin, 2-3 parts of PMMA resin, 3-4.5 parts of calcium carbonate, 4.5-7.5 parts of talcum powder, 1-3 parts of long glass fiber, 3-6 parts of a flame retardant, 0.5-1.5 parts of an antioxidant, 2-4 parts of nano metal oxide and 0.8-1.5 parts of a compatilizer. Preferably, the content ratio of the PVC resin to the PMMA resin is 15: 1; preferably, the flame retardant is one or more of hollow ceramic microbeads and hollow glass microbeads; preferably, the epoxy fatty acid methyl ester wire and cable material also comprises a rare earth oxide, and the weight part of the rare earth oxide is 1.4-2.6 parts. The material prepared by the invention not only has high strength, high toughness and good thermal stability, but also has excellent flame retardant property, and can effectively guarantee the safety and reliability of wires and cables in the use process.

Description

Technical Field

[0001] The invention relates to the technical field of wire and cable materials, in particular to an epoxy fatty acid methyl ester wire and cable material and a preparation method thereof. Background Art

[0002] Wire and cable materials are the core components of wire and cable manufacturing, involving conductive materials, insulating materials, sheath materials, etc., with multiple functions and performance requirements. Different types of wires and cables use different materials to ensure the electrical, mechanical, flame retardant, corrosion-resistant and other properties of the cables.

[0003] Plasticity plays a vital role in wire and cable materials, especially for cables that need to be bent, stretched or subjected to external forces. The plasticity requirements of wire and cable materials are mainly reflected in their adaptability during production, use and maintenance, ensuring that the cables have sufficient flexibility, tensile strength, wear resistance and fracture resistance. Wire and cable materials with poor plasticity may cause a series of problems during use, seriously affecting the performance and safety of the cables.

[0004] Materials with poor plasticity are not easy to bend or deform, which makes the cable unable to adapt to narrow or complex wiring environments during installation. Cables with high rigidity are easily damaged during installation, and may even cause conductor breakage or insulation damage, increasing the difficulty and risk of installation. Cable materials with poor plasticity are relatively fragile and easily broken by external impact or vibration. In addition, the cable may experience repeated bending, stretching or friction during use. Materials with poor plasticity are prone to cracking and aging under such long-term mechanical action, causing the cable to lose its original performance and shorten its service life.

[0005] Therefore, the materials of wires and cables must have sufficient plasticity to ensure their stability, durability and safety in complex environments. During use, the plasticity of existing wire and cable materials on the market cannot meet the needs of rapid technological development and still has a large room for improvement. In this regard, the present invention proposes an epoxy fatty acid methyl ester wire and cable material and a preparation method. Summary of the invention

[0006] The purpose of the present invention is to provide an epoxy fatty acid methyl ester wire and cable material and a preparation method to solve the problem that the plasticity of the wire and cable materials on the market in the prior art cannot meet the needs of rapid technological development during use and still has a large room for improvement.

[0007] To achieve the above object, the present invention provides the following technical solution: In a first aspect, the present invention provides an epoxy fatty acid methyl ester wire and cable material, which comprises the following components in parts by weight:

[0008] 2-5 parts of epoxy fatty acid methyl ester, 30-45 parts of PVC resin, 2-3 parts of PMMA resin, 3-4.5 parts of calcium carbonate, 4.5-7.5 parts of talc, 1-3 parts of long glass fiber, 3-6 parts of flame retardant, 0.5-1.5 parts of antioxidant, 2-4 parts of nano metal oxide, and 0.8-1.5 parts of compatibilizer.

[0009] Preferably, the content ratio of the PVC resin to the PMMA resin is 15:1.

[0010] Preferably, the length of the long glass fiber is 50-200 mm.

[0011] Preferably, the flame retardant is one or more of hollow ceramic microspheres and hollow glass microspheres.

[0012] Preferably, the antioxidant is one or more of tris(2,4-di-tert-butylphenyl)phosphate, 2,6-di-tert-butyl-4-methylphenol and diphenylamine.

[0013] Preferably, the nano metal oxide is one or more of nano silicon dioxide, nano aluminum oxide, and nano zinc oxide.

[0014] Preferably, the compatibilizer is one or more of chlorinated polyethylene, dioctyl phthalate, and diisononyl phthalate.

[0015] Preferably, the epoxy fatty acid methyl ester wire and cable material also includes rare earth oxides, and the weight proportion of the rare earth oxides is 1.4-2.6 parts.

[0016] Preferably, the rare earth oxide is one or more of cerium oxide, neodymium oxide, and lanthanum oxide.

[0017] The second aspect of the present invention provides a method for preparing the epoxy fatty acid methyl ester wire and cable material according to the first aspect of the present invention, comprising the following steps:

[0018] Weigh each component in proportion, first stir the PVC resin and PMMA resin, mix them evenly, then add epoxy fatty acid methyl ester, continue stirring for 5-7 minutes, then add the remaining components, mix and stir for 8-15 minutes, and then send them into a twin-screw extruder with an extrusion temperature of 160℃-190℃. After extrusion molding, cool, solidify, and cut.

[0019] The present invention has at least the following beneficial effects:

[0020] The present invention provides an epoxy fatty acid methyl ester wire and cable material and a preparation method. The prepared material not only has high strength, high toughness and good thermal stability, but also has excellent flame retardant properties, and can effectively ensure the safety and reliability of the wire and cable during use. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present invention provides an epoxy fatty acid methyl ester wire and cable material, which comprises the following components in parts by weight:

[0023] 2-5 parts of epoxy fatty acid methyl ester, 30-45 parts of PVC resin, 2-3 parts of PMMA resin, 3-4.5 parts of calcium carbonate, 4.5-7.5 parts of talc, 1-3 parts of long glass fiber, 3-6 parts of flame retardant, 0.5-1.5 parts of antioxidant, 2-4 parts of nano metal oxide, and 0.8-1.5 parts of compatibilizer.

[0024] Furthermore, the content ratio of PVC resin to PMMA resin is 15:1; and the length specification of the long glass fiber is 50-200 mm.

[0025] Furthermore, the flame retardant is one or more of hollow ceramic microspheres and hollow glass microspheres; the antioxidant is one or more of tri(2,4-di-tert-butylphenyl) phosphate, 2,6-di-tert-butyl-4-methylphenol and diphenylamine; the nano-metal oxide is one or more of nano-silicon dioxide, nano-alumina and nano-zinc oxide; and the compatibilizer is one or more of chlorinated polyethylene, dioctyl ester and diisononyl phthalate.

[0026] Furthermore, the epoxy fatty acid methyl ester wire and cable material also includes rare earth oxides, the weight proportion of the rare earth oxides is 1.4-2.6 parts, and the rare earth oxides are one or more of cerium oxide, neodymium oxide, and lanthanum oxide.

[0027] The preparation method of the above epoxy fatty acid methyl ester wire and cable material comprises the following steps:

[0028] Weigh each component in proportion, first stir the PVC resin and PMMA resin, mix them evenly, then add epoxy fatty acid methyl ester, continue stirring for 5-7 minutes, then add the remaining components, mix and stir for 8-15 minutes, and then send them into a twin-screw extruder with an extrusion temperature of 160℃-190℃. After extrusion molding, cool, solidify, and cut.

[0029] In the present invention:

[0030] As one of the main components of the present invention, epoxy fatty acid methyl ester has excellent plasticity and toughness, and can effectively improve the bending performance and tensile strength of wire and cable materials. PVC resin and PMMA resin work together to not only improve the insulation performance and heat resistance of the material, but also enhance the overall mechanical strength of the material. Calcium carbonate and talc help to improve the processing performance of the material and reduce costs. Long glass fiber can significantly improve the tensile and fracture resistance of the material, making the wire and cable safer and more reliable during use.

[0031] Flame retardants can make materials have excellent flame retardant properties and can effectively prevent the spread of fire in the event of a fire. Antioxidants can effectively extend the service life of materials and prevent materials from aging, cracking and other phenomena during long-term use. Nano metal oxides further improve the mechanical properties and heat resistance of materials, allowing wires and cables to maintain stable performance even in harsh environments. Compatibilizers ensure good compatibility between the components and avoid delamination and peeling of materials during use. Rare earth oxides further improve the comprehensive performance of materials, giving wires and cables more excellent electrical and mechanical properties.

[0032] Based on the above technical solution, the present invention provides the following partial embodiments:

[0033] Example 1

[0034] This embodiment provides an epoxy fatty acid methyl ester wire and cable material, which includes the following components in parts by weight:

[0035] 2 parts of epoxy fatty acid methyl ester, 30 parts of PVC resin, 2 parts of PMMA resin, 3 parts of calcium carbonate, 4.5 parts of talc, 1 part of long glass fiber, 3 parts of flame retardant, 0.5 parts of antioxidant, 2 parts of nano metal oxide, and 0.8 parts of compatibilizer.

[0036] The flame retardant is hollow ceramic microspheres; the antioxidant is tri(2,4-di-tert-butylphenyl) phosphate; the nano metal oxide is nano silicon dioxide; and the compatibilizer is chlorinated polyethylene.

[0037] The preparation method of the epoxy fatty acid methyl ester wire and cable material comprises the following steps:

[0038] Weigh each component in proportion, first stir the PVC resin and PMMA resin to mix evenly, then add epoxy fatty acid methyl ester, continue stirring for 5 minutes, then add the remaining components, mix and stir for 8 minutes, and then send it into a twin-screw extruder at an extrusion temperature of 160°C. After extrusion molding, cool, solidify, and cut.

[0039] Example 2

[0040] This embodiment provides an epoxy fatty acid methyl ester wire and cable material, which includes the following components in parts by weight:

[0041] 4 parts of epoxy fatty acid methyl ester, 37.5 parts of PVC resin, 2.5 parts of PMMA resin, 4 parts of calcium carbonate, 6 parts of talc, 2 parts of long glass fiber, 5 parts of flame retardant, 1 part of antioxidant, 3 parts of nano metal oxide, and 1 part of compatibilizer.

[0042] The flame retardant is hollow glass microspheres; the antioxidant is 2,6-di-tert-butyl-4-methylphenol; the nano metal oxide is nano alumina; and the compatibilizer is dioctyl ester.

[0043] The preparation method of the epoxy fatty acid methyl ester wire and cable material comprises the following steps:

[0044] Weigh each component in proportion, first stir the PVC resin and PMMA resin to mix evenly, then add epoxy fatty acid methyl ester, continue stirring for 6 minutes, then add the remaining components, mix and stir for 12 minutes, and then send it into a twin-screw extruder at an extrusion temperature of 180°C. After extrusion molding, cool, solidify, and cut.

[0045] Example 3

[0046] This embodiment provides an epoxy fatty acid methyl ester wire and cable material, which includes the following components in parts by weight:

[0047] 5 parts of epoxy fatty acid methyl ester, 45 parts of PVC resin, 3 parts of PMMA resin, 4.5 parts of calcium carbonate, 7.5 parts of talc, 3 parts of long glass fiber, 6 parts of flame retardant, 1.5 parts of antioxidant, 4 parts of nano metal oxide, and 1.5 parts of compatibilizer.

[0048] The flame retardant is a mixture of hollow ceramic microspheres and hollow glass microspheres in a mixing ratio of 1:1; the antioxidant is diphenylamine; the nano metal oxide is nano zinc oxide; and the compatibilizer is diisononyl phthalate.

[0049] The preparation method of the epoxy fatty acid methyl ester wire and cable material comprises the following steps:

[0050] Weigh each component in proportion, first stir the PVC resin and PMMA resin to mix evenly, then add epoxy fatty acid methyl ester, continue stirring for 7 minutes, then add the remaining components, mix and stir for 15 minutes, and then send it into a twin-screw extruder at an extrusion temperature of 190°C. After extrusion molding, cool, solidify, and cut.

[0051] Example 4

[0052] This embodiment provides an epoxy fatty acid methyl ester wire and cable material, which is the same as Embodiment 1, except that it also includes rare earth oxide, the weight portion of the rare earth oxide is 1.4 parts, and the rare earth oxide is cerium oxide.

[0053] Example 5

[0054] This embodiment provides an epoxy fatty acid methyl ester wire and cable material, which is the same as Embodiment 2, except that it also includes rare earth oxide, the weight portion of the rare earth oxide is 2 parts, and the rare earth oxide is neodymium oxide.

[0055] Example 6

[0056] This embodiment provides an epoxy fatty acid methyl ester wire and cable material, which is the same as Embodiment 3, except that it also includes rare earth oxide, the weight portion of the rare earth oxide is 2.6 parts, and the rare earth oxide is lanthanum oxide.

[0057] A series of relevant performance tests were carried out on the products prepared in the above Examples 1-6, and the results are shown in the following table:

[0058]

[0059]

[0060] In summary, the material prepared by the present invention not only has high strength, high toughness and good thermal stability, but also has excellent flame retardant properties, and can effectively guarantee the safety and reliability of wires and cables during use. Compared with the existing wire and cable materials on the market, the epoxy fatty acid methyl ester wire and cable material prepared by the present invention has been significantly improved in plasticity, can better adapt to the complex and changeable wiring environment, reduce the risk of damage during installation, and can also effectively resist the influence of external shocks and vibrations during use, and extend the service life of the cable. Therefore, the present invention has a wide range of application prospects and promotion value in the field of wire and cable materials.

[0061] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An epoxy fatty acid methyl ester wire and cable material, characterized in that: The composition is calculated by weight: 2-5 parts of epoxy fatty acid methyl ester, 30-45 parts of PVC resin, 2-3 parts of PMMA resin, 3-4.5 parts of calcium carbonate, 4.5-7.5 parts of talc, 1-3 parts of long glass fiber, 3-6 parts of flame retardant, 0.5-1.5 parts of antioxidant, 2-4 parts of nano metal oxide, and 0.8-1.5 parts of compatibilizer.

2. The epoxy fatty acid methyl ester wire and cable material according to claim 1, characterized in that: The content ratio of the PVC resin to the PMMA resin is 15:

1.

3. The epoxy fatty acid methyl ester wire and cable material according to claim 1, characterized in that: The length specification of the long glass fiber is 50-200 mm.

4. The epoxy fatty acid methyl ester wire and cable material according to claim 1, characterized in that: The flame retardant is one or more of hollow ceramic microspheres and hollow glass microspheres.

5. The epoxy fatty acid methyl ester wire and cable material according to claim 1, characterized in that: The antioxidant is one or more of tris(2,4-di-tert-butylphenyl)phosphate, 2,6-di-tert-butyl-4-methylphenol and diphenylamine.

6. The epoxy fatty acid methyl ester wire and cable material according to claim 1, characterized in that: The nano metal oxide is one or more of nano silicon dioxide, nano aluminum oxide, and nano zinc oxide.

7. The epoxy fatty acid methyl ester wire and cable material according to claim 1, characterized in that: The compatibilizer is one or more of chlorinated polyethylene, dioctyl phthalate, and diisononyl phthalate.

8. The epoxy fatty acid methyl ester wire and cable material according to claim 1, characterized in that: The epoxy fatty acid methyl ester wire and cable material also includes rare earth oxides, and the weight proportion of the rare earth oxides is 1.4-2.6 parts.

9. The epoxy fatty acid methyl ester wire and cable material according to claim 8, characterized in that: The rare earth oxide is one or more of cerium oxide, neodymium oxide and lanthanum oxide.

10. A method for preparing the epoxy fatty acid methyl ester wire and cable material according to any one of claims 1 to 9, characterized in that: The steps include: Weigh each component in proportion, first stir the PVC resin and PMMA resin, mix them evenly, then add epoxy fatty acid methyl ester, continue stirring for 5-7 minutes, then add the remaining components, mix and stir for 8-15 minutes, and then send them into a twin-screw extruder with an extrusion temperature of 160℃-190℃. After extrusion molding, cool, solidify, and cut.

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