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Preparation method, product and use of modified vinylene chloride plastics
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A polyvinyl chloride and polyvinyl chloride resin technology, applied in plastic/resin/wax insulators, organic insulators, conductors, etc., can solve the problems of poor toughness and poor temperature resistance, and achieve good compatibility and wear resistance. High and good thermal stability
Inactive Publication Date: 2011-08-03
LINOYA ELECTRONIC TECHNOLOGY CO LTD
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Problems solved by technology
The blending and melting of PVC and various additives makes the blend have both polyester plasticizer and hydrogenated nitrile rubber temperature resistance, and solves the performance defects of poor toughness and poor temperature resistance of current PVC materials. By adding flame retardant And antioxidants and other additives to improve its flame retardant performance and anti-aging performance, especially the technical difficulties in the application of wire coating materials
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Embodiment 1
[0045] The present embodiment provides a kind of preparation method of modified polyvinyl chloride plastic, it comprises the following steps:
[0046] (1) Weighing raw materials: Weigh 60g of polyvinyl chloride resin powder, 27g of plasticizer, 5.7g of hydrogenated nitrile rubber, 4.3g of stabilizer (paraffin-calcium stearate), flame retardant (polyethylene wax and polytetrafluoroethylene Vinyl fluoride) 1.3g, lubricant (Sb 2 o 3 , Mg(OH) 2 )1.7g;
[0047] (2) Ingredients mixing: Add polyvinyl chloride resin powder into the mixer, start the mixer to preheat, then add plasticizer and stabilizer, continue to heat up, mix, heat up to 85-90°C, and put in hydrogenated nitrile For rubber, stabilizer, flame retardant, lubricant, heat up to 100-135°C, set the speed of the mixer to 1300r / min, and carry out high-speed mixing to obtain the mixture;
[0048] (3) Extrusion molding: Put the mixed material described in step (2) into the hopper of the twin-screw extruder, inject it by the...
Embodiment 2
[0050] Embodiment 2 and implementation 3 provide modified polyvinyl chloride plastics, and its preparation process steps are basically the same as in Example 1, the difference being that the raw material component distribution ratio is shown in Table 1:
[0051] The raw material ratio of each embodiment of table 1
[0052] components
Example 1
Example 2
Example 3
PVC resin powder
60
57
62
plasticizer
27
28
25
Hydrogenated nitrile rubber
5.7
5.7
5.7
stabilizer
4.3
4.3
4.3
Flame Retardants and Lubricants
3
3
3
[0053] The modified polyvinyl chloride plastic obtained in the above embodiments of the present invention has the characteristics of high wear resistance and scratch resistance, high flame retardancy, anti-ultraviolet radiation, good thermal stability, soft hand feeling, and anti-sticking. After testing, its performance is shown in the ...
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Abstract
The invention provides a preparation method of modified vinylene chloride plastics, which comprises the following steps: (1) weighing raw materials; (2) mixing prepared materials, namely adding polrvinyl chloride resin powder into a mixing mill, preheating, adding a plasticizer and a stabilizer, mixing to 85 to 90 DEG C, adding other aids, heating to 100 to 135 DEG C, and mixing at a high speed of 1,300r / min to obtain a mixed material; (3) performing extrusion forming, namely placing the mixed material in a double-screw extruder, initially melting, and plasticizing to obtain a completely plasticized material; and (4) granulating, air cooling, sieving, cooling and discharging products. In the method, the process is simple, the conditions are easy to control, and large-scale production is easy. In addition, the invention also provides modified vinylene chloride plastics, which have the characteristics of high wear resistance, high scraping resistance, high flame retardance, high ultraviolet resistance, soft handfeel, adhesion prevention, and the like, and can be used as coating materials for wires and cables.
Description
technical field [0001] The invention relates to the technical field of polymer material modification, in particular to a preparation method of a PVC modified material, the PVC modified material and its application to electric wires and cables. Background technique [0002] Engineering plastics have excellent performance and are also in line with the trend of energy conservation and environmental protection. In recent years, engineering plastics have been widely used in electronics, automobiles, construction, office equipment, machinery, aviation and other industries. It has become an international trend to replace steel with plastic. Engineering plastics has become the fastest growing field in the plastics industry in the world today. Its development not only supports the national pillar industries and modern high-tech industries, but also promotes the transformation of traditional industries and the adjustment of product structure. After 10 years of development, China's eng...
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