Low-cost antistatic polycarbonate resin and its preparation method

A polycarbonate resin, antistatic technology, applied in the field of communication and home appliances, can solve the problems of high price, avoid the loss of physical properties and reduce the cost of materials

Active Publication Date: 2016-02-03
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the superconducting carbon black on the market is none other than EC600JD, which has the best effect in reducing the surface resistance of the resin, and has less impurities. Compared with the same period last year, the amount that needs to be added is the least, so it has the least impact on the basic physical properties of the resin, but it is expensive.

Method used

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  • Low-cost antistatic polycarbonate resin and its preparation method
  • Low-cost antistatic polycarbonate resin and its preparation method
  • Low-cost antistatic polycarbonate resin and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] S11. Weigh 94 parts of PCL-1225L, 6 parts of conductive carbon black, 10100.1 parts of primary antioxidant, 1680.1 parts of secondary antioxidant, and 0.4 parts of lubricant PETS according to the formula of Example 1 in Table 1 below;

[0029] S12, mixing the base material weighed in the step S11 in a medium-speed mixer for 20 minutes;

[0030] S13. Put the mixture obtained in step S12 into a twin-screw extruder, extrude through a twin-screw extruder with a melting temperature of 200-280° C., and granulate to obtain a finished product.

Embodiment 2

[0032] S21. Weigh 94 parts of PCL-1225L, 6 parts of conductive carbon black, 10100.1 parts of primary antioxidant, 1680.1 parts of auxiliary antioxidant, and 0.4 part of lubricant PETS according to the formula of Example 2 in Table 1 below;

[0033] S22, mixing the base material weighed in the step S21 in a medium-speed mixer for 20 minutes;

[0034] S23. Put the mixture obtained in step S22 into a twin-screw extruder, extrude through a twin-screw extruder with a melting temperature of 200-280° C., and granulate to obtain a finished product.

Embodiment 3

[0036] S31. Weigh 1.5 parts of PCL-1225L, 7 parts of conductive carbon black, 1 part of KSS, 0.5 parts of sodium dihydrogen phosphate, 10100.1 parts of primary antioxidant, 1680.1 parts of secondary antioxidant according to the formula of Example 3 in Table 1 below, 0.4 parts of lubricant PETS;

[0037] S32, mixing the base material weighed in the step S31 in a medium-speed mixer for 20 minutes;

[0038] S33. Put the mixture obtained in step S32 into a twin-screw extruder, extrude through a twin-screw extruder with a melting temperature of 200-280° C., and granulate to obtain a finished product.

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PUM

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Abstract

The invention discloses low-cost antistatic polycarbonate resin and a preparation method thereof. The low-cost antistatic polycarbonate resin mainly comprises the following compositions in parts by weight: 88-96 parts of matrix resin, 4-10 parts of conductive carbon black, 0.1-1 part of potassium diphenyl sulfone sulfonate (KSS), 0.1-1 part of sodium dihydrogen phosphate and 0.1-0.9 part of other compositions. Low-cost conductive carbon black replaces EC600JD, so that under the premise of avoiding physical property loss, the material cost is substantially reduced.

Description

technical field [0001] The invention belongs to the technical field of communication and home appliances, and in particular relates to a low-cost antistatic polycarbonate resin and a preparation method thereof. Background technique [0002] Adding conductive carbon black can reduce the surface resistance of polycarbonate, from non-conductive resin to antistatic resin, and even conductive resin. The antistatic polycarbonate resin is obtained by extruding and granulating conductive carbon black and polycarbonate through a twin-screw extruder. Conductive carbon black is a carbon black with a unique chain structure. The microstructure of its crystals is graphite-like. These crystals form the most primary particles together, and these particles are agglomerated to form a chain through the action of van der Waals force. conductive structure. The crystals of conductive carbon black are formed by a large number of benzene rings with π electrons. The π electrons can move freely on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08K13/02C08K3/04C08K5/42C08K3/26
Inventor 文睿李强罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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