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Flexible polyvinyl chloride cable material and preparation method thereof

A technology of polyvinyl chloride cable and soft polyvinyl chloride, applied in plastic/resin/wax insulators, organic insulators, etc., to reduce material costs, improve product market competitiveness, and improve flexibility

Active Publication Date: 2014-02-19
南通市东风特种电线有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of the above-mentioned DOS, EVA, and NBR plasticizers is relatively high, which will result in high production costs of cables, which is not conducive to market competition

Method used

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  • Flexible polyvinyl chloride cable material and preparation method thereof

Examples

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preparation example Construction

[0021] A preparation method of soft polyvinyl chloride cable material, comprising the following steps:

[0022] (1) Weigh the raw materials according to the above formula, add polyvinyl chloride resin and nano-calcium carbonate to the high-mixer and stir at a speed of 700-800 r / min for 5-10 minutes, then add antioxidant to the above-mentioned mixture Bisphenol A, lubricant, composite heat stabilizer, pigment, vinyl chloride-butyl acrylate resin, stir for 1-2min, and finally add dioctyl phthalate and dioctyl sebacate, at 700-800 r / Mix evenly at a speed of min.

[0023] (2) Send the mixture obtained in step (1) into a single-screw cable extruder with a diameter of 70mm and a length-to-diameter ratio of 25:1 to extrude and pelletize. The temperature is controlled at 100-170°C and the line speed is 10m / min to produce finished products. The internal temperature of the single-screw cable extruder is set as follows: first stage temperature: 100-110°C, second stage temperature: 14...

Embodiment

[0025] Plasticizer, also known as plasticizer, is a polymer material additive widely used in industry. Adding this substance in plastic processing can enhance its flexibility. Therefore, this example examines the influence of the amount of different plasticizers and co-plasticizers on the performance of the cable, and its raw material formula is shown in Table 1 below:

[0026] Raw materials (kg) Condition 1 Condition 2 Condition 3 Condition 4 comparative example PVC resin 100 100 100 100 100 Dioctyl phthalate 16 16 16 18 32 Dioctyl sebacate 16 16 8 12 - Vinyl chloride-butyl acrylate resin 16 16 24 20 - Petroleum ester (T-50) 6.8 - 6.8 - 11.2 Chlorinated paraffin - 6.8 - 6.8 11.2 Nano calcium carbonate 15 15 20 20 15 antioxidant 1.2 1.2 1.2 1.2 1.2 lubricant 1.6 1.6 1.8 1.8 1.6 pigment 0.8 0.8 1.0 1.0 0.8 Composite heat stabilizer 6.8 6.8 6.8 6.8 6.8 ...

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Abstract

The invention discloses a flexible polyvinyl chloride cable material which is characterized by being composed of the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 40-52 parts of plasticizer, 6-8 parts of secondary plasticizer, 15-25 parts of nano calcium carbonate, 1-2 parts of antioxidant, 1.5-2.5 parts of lubricant, 0.8-1.2 parts of pigment and 6-8 parts of composite heat stabilizer. By using the vinyl chloride-butyl acrylate resin, dioctyl phthalate and dioctyl sebacate mixed plasticizer, physical and mechanical properties of the prepared flexible polyvinyl chloride cable material completely conforms to a related product standard in China, the elongation at break is 1.43-1.53 times better than the national standard, and the flexibility of the cable material is greatly improved; and meanwhile, by using the low-cost vinyl chloride-butyl acrylate resin part instead of dioctyl sebacate plasticizer, the material cost can be reduced to some extent, thus increasing the market competitive power of the product.

Description

technical field [0001] The invention relates to a polyvinyl chloride cable material, specifically a soft polyvinyl chloride cable material, and also relates to a preparation method of the soft polyvinyl chloride cable material. Background technique [0002] With the rapid development of construction, communication and other industries, the demand for cables is gradually increasing, especially in the elevator industry. The demand for cables used with elevators has also increased accordingly. PVC cable material is a thermoplastic material. The disadvantage is that it is extremely poor in flexibility at low temperatures (less than 15°C). At this time, if the elevator is frequently moved, it will cause safety hazards. Usually, in order to improve the flexibility of the product, an appropriate amount of plasticizer is added to the formula to improve its performance. However, if too much plasticizer is added, the surface plasticizer will migrate when the cable is used later. Mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L33/08C08K13/02C08K5/12C08K5/11C08K3/26H01B3/44B29B9/06B29C47/92B29C48/92
Inventor 冒爱荣
Owner 南通市东风特种电线有限公司
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