Environment-friendly high-voltage cable thermoplastic shielding material and preparation method thereof
A high-voltage cable and thermoplastic technology, which is applied in the field of environment-friendly high-voltage cable thermoplastic shielding material and its preparation, can solve the problem that the shielding material is difficult to meet the requirements of mechanical properties and thermal stability performance at the same time, achieve excellent physical and mechanical properties, save production costs, simplify The effect of the production process
Pending Publication Date: 2022-02-25
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD +1
View PDF5 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an environment-friendly high-voltage cable thermoplastic shielding material and its preparation method, so as to overcome the technical problem that the shielding material in the prior art is difficult to meet the requirements of mechanical properties and thermal stability performance at the same time
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment and
[0043] Embodiment and comparative example:
[0044] 1. Preparation of thermoplastic shielding material
[0045] (1) According to the weight ratio in Table 1, each component is weighed in proportion.
[0046] The proportioning of each component of the thermoplastic shielding material of table 1 embodiment and comparative example
[0047]
[0048] (2) Conductive carbon black pretreatment: Mix conductive carbon black and dispersant at 70±5°C for 2-3 minutes at low speed, and then mix at high speed for 3-5 minutes;
[0049] Preparation of modified matrix resin: Add polypropylene, elastomer, compatibilizer, and antioxidant to the mixer and mix thoroughly. The temperature is controlled at 70±5°C and mixed for 2-3 minutes. The stirring speed is 40-50rpm, so that the Evenly dispersed between;
[0050] Preparation of semi-conductive shielding material: After mixing polypropylene, elastomer, compatibilizer and antioxidant, add it to the main feed; add the mixture of conductive car...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| melt flow index | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| melt flow index | aaaaa | aaaaa |
Login to View More
Abstract
The invention belongs to the technical field of shielding materials, discloses an environment-friendly high-voltage cable thermoplastic shielding material and a preparation method thereof, and aims to solve the technical problem that the shielding material in the prior art is difficult to meet the requirements of mechanical properties and thermal stability at the same time. The thermoplastic shielding material comprises the following components: polypropylene, conductive carbon black, an elastomer, a compatilizer, a dispersing agent and an antioxidant, the compatilizer is at least one of maleic anhydride grafted PP, maleic anhydride grafted POE, maleic anhydride grafted PE and a glycidyl methacrylate grafted ethylene and vinyl acetate copolymer. According to the thermoplastic shielding material disclosed by the invention, a formula system is designed, so that polypropylene does not need a cross-linking reaction during preparation, and has excellent physical and mechanical properties only through a grafting reaction on the basis of ensuring the conductivity of the shielding material, so that the production process can be simplified, and the production cost can be effectively saved; and the cable thermoplastic shielding material is suitable for the field of 110kv, 220kv and 500kv high-voltage AC or DC cables.
Description
technical field [0001] The invention relates to the technical field of shielding materials, in particular to an environment-friendly thermoplastic shielding material for high-voltage cables and a preparation method thereof. Background technique [0002] Power cable is an important supporting industry for my country's economic construction and plays an extremely important role in the national economy. At this stage, cross-linked polyethylene (XLPE) insulated cables are widely used, but the equipment cost required for XLPE materials in the preparation process is relatively high, the yield is low, and the energy consumption is large; and XLPE is a thermosetting material, which is difficult to recycle. It will not only cause serious pollution but also waste a lot of resources. [0003] In order to improve the compatibility of materials and the environment, it has become a development trend to use polypropylene (PP) as a green, recyclable and non-crosslinked thermoplastic cable ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L23/16C08L51/06C08K3/04C08K9/06
CPCC08L23/12C08L23/0815C08L23/16C08K2201/001C08L51/06C08K3/04C08K9/06
Inventor 陈俊侯帅傅明利展云鹏朱闻博惠宝军张逸凡冯宾
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD