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Preparation method of high-flame-retardance PVC (polyvinyl chloride) color master batch

A color masterbatch, high flame-retardant technology, applied in the direction of plastic/resin/wax insulator, organic insulator, etc., can solve the problems of stripes and uneven color on the insulation surface of wire and cable, achieve good dispersion performance and improve dispersion uniformity , Improve the effect of product qualification rate

Inactive Publication Date: 2018-02-06
苏州武江新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of stripes and uneven colors on the insulation surface of wires and cables in the production process of high flame-retardant PVC wires and cables in the prior art, the main purpose of the present invention is to provide a preparation method of high flame-retardant PVC color masterbatch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of high flame-retardant PVC color masterbatch, comprising the following steps:

[0024] (1) Premixing and dispersing by a high-speed internal mixer: first add 55 parts of powdered polyvinyl chloride resin and 1 part of polyethylene wax, and premix at a high speed. The screw speed is 500 RPM, the temperature is set at 30 ° C, and the time is 750s; then add 2 parts of heavy calcium carbonate and 30 parts of pigment yellow 001, premix at high speed, the screw speed is 410RPM, the temperature is set at 28°C, and the time is 720s to obtain the premix;

[0025] (2) Mixing: add 1 part of plasticizer to the premix, mix at high speed for a short time, the screw speed is 410RPM, the temperature is set at 26°C, and the time is 480s to obtain the base material;

[0026] (3) Extrude the base material, and the extrusion temperature is 176°C. ;

[0027] (4) Cooling and air-drying: After the PVC material is water-cooled, it is air-cooled, and the PVC material is ...

Embodiment 2

[0030] A preparation method of high flame-retardant PVC color masterbatch, comprising the following steps:

[0031] (1) Premixing and dispersing by a high-speed internal mixer: first add 70 parts of powdered polyvinyl chloride resin and 2 parts of polyethylene wax, premix at a high speed, the screw speed is 480RPM, the temperature is set at 33 ° C, and the time is 720s; then add 3 parts of heavy calcium carbonate and 25 parts of Pigment Blue 16, premix at high speed, the screw speed is 400RPM, the temperature is set at 25°C, and the time is 600s to obtain the premix;

[0032] (2) Mixing: Add 2 parts of plasticizer to the premix, mix at high speed for a short time, the screw speed is 420RPM, the temperature is set at 25°C, and the time is 450s to obtain the base material;

[0033] (3) extruding the base material, the extrusion temperature is 180°C;

[0034] (4) cooling and air-drying: after the PVC material is water-cooled, it is air-cooled, and the PVC material is placed in 5...

Embodiment 3

[0037] A preparation method of high flame-retardant PVC color masterbatch, comprising the following steps:

[0038] (1) Premixing and dispersing by a high-speed internal mixer: first add 60 parts of powdered polyvinyl chloride resin and 3 parts of polyethylene wax, premix at a high speed, the screw speed is 520RPM, the temperature is set at 28 ° C, and the time is 810s; then add 5 parts of heavy calcium carbonate and 35 parts of Pigment Green 50, premix at high speed, the screw speed is 420RPM, the temperature is set at 30°C, and the time is 750s to obtain the premix;

[0039] (2) Mixing: Add 1 part of plasticizer to the premix, mix at high speed for a short time, the screw speed is 400RPM, the temperature is set at 28°C, and the time is 510s to obtain the base material;

[0040] (3) extruding the base material, the extrusion temperature is 175°C;

[0041] (4) Cooling and air-drying: after the PVC material is water-cooled, carry out air-cooling, put the PVC material in runnin...

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PUM

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Abstract

The invention relates to the technical of PVC (polyvinyl chloride) color master batch coloring, in particular to a preparation method of high-flame-retardance PVC color master batches. The preparationmethod of the high-flame-retardance PVC color master batches comprises the following steps of premixed dispersion by a high-speed internal mixer: firstly adding powdery PVC resin and polyethylene wax; performing high-speed premixing; then, adding heavy calcium carbonate and pigment; performing high-speed premixing to obtain a premix; (2) material mixing: adding a plasticizer into the premix; performing high-speed mixing for short time, wherein the screw rod rotating speed is 360RPM to 450RPM, the temperature is set to be 24 DEG C to 31 DEG C, and the time is 430s to 550s; obtaining a base material; (3) base material extrusion molding; (4) cooling and air drying: performing air cooling after the PVC material is subjected to water cooling; (5) granule cutting. By regulating the material feeding sequence and the material mixing process, the material dispersion uniformity can be improved at the shortest time; simplicity, stability and high efficiency are realized; the production efficiency is improved, so that the prepared color master batches have the advantages of good dispersion performance and strong coloring power.

Description

technical field [0001] The invention relates to the technical field of coloring of PVC color masterbatches, in particular to a preparation method of highly flame-retardant PVC color masterbatches. Background technique [0002] Polyvinyl Chloride (hereinafter referred to as PVC) is a non-toxic, odorless white powder. In China, the production and consumption of PVC rank first among the five general-purpose resins. According to statistics, the total output value of PVC in China in 2008 was close to 67 billion yuan. The market for PVC downstream products is even wider. In 2008, the output value of downstream products using PVC as raw material exceeded 100 billion yuan. In the field of rigid PVC, profiles and profiled materials are the largest consumption areas of PVC in my country, accounting for about 25% of the total consumption of PVC. They are mainly used to make doors and windows and energy-saving materials, and PVC pipes are the second largest consumption area. , account...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08K3/26C08J3/22H01B3/44B29B7/00
CPCC08J3/226B29B7/005C08J2327/06C08J2423/06C08K2003/265C08L27/06C08L2201/02C08L2203/202C08L2310/00H01B3/443C08L23/06C08K3/26
Inventor 张继中
Owner 苏州武江新材料科技有限公司
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