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Special-purpose polyvinyl chloride/super powder composite granulate for cable

A technology of ultrafine powder and polyvinyl chloride, which is applied in the filling and modification of polyvinyl chloride cable materials, and in the field of polyvinyl chloride/ultrafine powder composite special pellets for cables, which can solve the adverse effects of product performance and the amount of addition Limited, poor resin matrix compatibility and other issues, to achieve the effect of improving compatibility, cost reduction, and cost reduction

Inactive Publication Date: 2009-05-13
TIANJIN DEHAO NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ordinary inorganic powders are often used in traditional cable materials, which have poor compatibility with the resin matrix, limited dosage, and have many adverse effects on the performance of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] Embodiment: The composition and weight of special pellets for polyvinyl chloride / ultrafine powder composite for cables are:

[0020] PVC resin 50~60kg

[0021] DOP 20~25kg

[0022] Chlorinated paraffin 2.2~3.8kg

[0023] Tribasic lead sulfate 1.8~3.0kg

[0024] Acrylic processing aid 0.4~1.2kg

[0025] PVC external lubricant 0.2~1.0kg

[0026] Modifier 1.0~2.0kg

[0027] Filler 5~20kg

[0028] 6000 mesh superfine heavy calcium 2~5kg

[0029] Its preparation method is:

[0030] Put 6000 mesh ultra-fine heavy calcium into the high-mixer, stir and mix at a high speed until the temperature is 120-180°C, start to dehumidify, add phthalate and paraffin when the temperature reaches 100-110°C, mix and stir for 5-8 minutes, then put Put it into the cold mixer at a temperature of 30-50°C and discharge the material, which is modified 6000-mesh superfine heavy calcium.

[0031] Put PVC into a high-mixer, add stabilizers, plasticizers and other compounding agents and knead ...

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PUM

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Abstract

The invention relates to a polyvinyl chloride / ultra-fine powder composite special granular material used for a cable in the technical field of high molecular material, which is prepared from various raw materials such as PVC, plasticizer, stabilizer, processing agent, modified agent, ultra-fine powder. A method for preparing the polyvinyl chloride / ultra-fine powder composite special granular material comprises the following steps: fully mixing the raw materials and auxiliary materials evenly in a high-speed mixer to prepare a PVC mixing material; and then extruding and granulating the PVC mixing material by using an extruder so as to obtain the polyvinyl chloride / ultra-fine powder composite special granular material used for the cable. The polyvinyl chloride / ultra-fine powder composite special granular material used for the cable has higher dispersibility and compatibility, and can improve the mobility and the processing performance of a system, so that the polyvinyl chloride / ultra-fine powder composite special granular material used for the cable has better physical mechanical property and aging property, and reduces the product cost.

Description

technical field [0001] The invention relates to a polyvinyl chloride / ultrafine powder composite special pellet for cables in the field of polymer materials. It specifically relates to the filling modification of polyvinyl chloride cable material. Background technique [0002] Ordinary inorganic powders are often used in traditional cable materials, which have poor compatibility with the resin matrix, limited dosage, and have many adverse effects on the performance of the product. [0003] The purpose of the present invention is to overcome the disadvantages in the process of the compounding of ordinary inorganic particles and organic substances in the process of preparation. Since ordinary calcium carbonate is likely to cause interface defects between the two materials when used in polymers, a certain amount of modified ultrafine powder is filled to make it a functional filler from a general filler, eliminating the need to disperse in organic matter. Inhomogeneity, the int...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/10
Inventor 王燕揣成智
Owner TIANJIN DEHAO NEW MATERIALS