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Amino carboxylic acid type copper inhibitor-containing polypropylene composite material and preparation method thereof

A technology of aminocarboxylic acid and composite materials, applied in the direction of plastic/resin/wax insulators, organic insulators, electrical components, etc., can solve the problems of short life, inability to inhibit catalytic degradation, and inability to use for a long time, and achieve strong catalytic aging ability , the ability to inhibit catalytic aging, good oil extraction effect

Inactive Publication Date: 2014-02-05
ZHEJIANG EXPO NEW MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if polypropylene with antioxidant and anti-ultraviolet agent is added as copper core wire sheath, its life is short and cannot be used for a long time
Even adding more antioxidants and anti-ultraviolet agents can not inhibit the catalytic degradation of polypropylene by copper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step (1). 85g polypropylene, 5g calcium carbonate, 0.1g ultraviolet absorber UV-12, 9.9g flame retardant are mixed into 100g compound;

[0025] Step (2). Add the compound to the twin-screw extruder for extrusion. The processing temperature of the twin-screw extruder is 120°C in the feeding section, 150°C in the plasticizing section, 180°C in the homogenizing section, and the temperature of the head is 180°C ; and then draw in cold water in a water bath at 10° C., the draw ratio is 2 times, and cut and granulate with a cutting machine to obtain a polypropylene composite material.

[0026] From Table 1, we can see that the polypropylene composite material prepared in Example 1 has a tensile strength of 32.4 Mpa, an elongation of 64%, an oxygen absorption induction period of 2 min at 200 °C, and a copper clamp test at 150 °C. After 4 days, the tablet was severely brittle and the copper sheet turned green.

Embodiment 2

[0028] Step (1). 84.7g polypropylene, 0.1g iminodisuccinic acid (IDS), 5g calcium carbonate, 0.2g antioxidant 1010, 0.1g ultraviolet absorber UV-12, 9.9g flame retardant are mixed into 100g mixed material;

[0029] Step (2). Add the compound to the twin-screw extruder for extrusion. The processing temperature of the twin-screw extruder is 120°C in the feeding section, 150°C in the plasticizing section, 180°C in the homogenizing section, and the temperature of the head is 180°C ; and then draw in cold water in a water bath at 10° C., the draw ratio is 2 times, and cut and granulate with a cutting machine to obtain a polypropylene composite material.

[0030] From Table 1, we can see that the polypropylene composite material prepared in Example 2 has a tensile strength of 32.2Mpa, an elongation of 70%, an oxygen absorption induction period of 40min at 200°C, and a copper clamp test of 4d at 150°C. The back sheet is not brittle, and the copper sheet has no change.

Embodiment 3

[0032] Step (1). 84.5g polypropylene, 0.3g iminodisuccinic acid (IDS), 5g calcium carbonate, 0.2g antioxidant 1010, 0.1g ultraviolet absorber UV-12, 9.9g flame retardant are mixed into 100g mixed material;

[0033] Step (2). Add the compound to the twin-screw extruder for extrusion. The processing temperature of the twin-screw extruder is 120°C in the feeding section, 150°C in the plasticizing section, 180°C in the homogenizing section, and the temperature of the head is 180°C ; and then draw in cold water in a water bath at 10° C., the draw ratio is 2 times, and cut and granulate with a cutting machine to obtain a polypropylene composite material.

[0034] From Table 1, we can see that the polypropylene composite material prepared in Example 3 has a tensile strength of 30.5Mpa, an elongation of 50%, an oxygen absorption induction period of 51min at 200°C, and a copper clamp test of 4d at 150°C. The back sheet is not brittle, and the copper sheet has no change.

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Abstract

The invention relates to an amino carboxylic acid type copper inhibitor-containing polypropylene composite material and a preparation method thereof. The polypropylene composite material is obtained by mixing 70-90% of polypropylene, 0.01-1% of an amino carboxylic acid type copper inhibitor, 0.1-10% of an inorganic filler, 0.1-0.5% of an antioxidant, 0.1-0.3% of an ultraviolet absorbent and 5-20% of a fire retardant. The method comprises the following steps: mixing above raw materials in proportion to form a mixture, extruding the mixture through a double screw extruder, cooling with water, drafting, and carrying out cutting granulation to granules. The copper inhibitor which is an amino carboxylic acid substance forms many chelated coordination structures with copper ions to generate a chelate having a high stability, and the chelate has the advantages of strong inhibition of the ageing catalysis capability of heavy metal ions, substantial copper harm resistance, good compatibility with resins, no migration, no pollution, water resistance, good oil extraction property, and no influences on the electric insulation performance or other performances of the resins.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a polypropylene composite material and a preparation method thereof, in particular to an aminocarboxylic acid-containing anti-copper agent polypropylene composite material for wires and cables and a preparation method thereof. Background technique [0002] In recent years, with the development of electric power and communication industries, the demand for wires and cables is gradually increasing. All kinds of cables and electrical appliances mostly use copper core cables, and their outer insulating coatings are polyolefin plastics, among which propylene copolymers have shown incomparable advantages as other materials in terms of communication cable insulation materials. However, due to the presence of methyl groups and tertiary carbon atoms in polypropylene molecules, it is very susceptible to light or heat aging, especially in the presence of copper ions, and the aging d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12H01B3/30C08K13/02C08K5/17C08K3/26C08K3/36C08K3/34B29B9/06
CPCY02P20/52C08K13/02B29B9/06B29C48/92B29C2948/92704C08K3/22C08K3/26C08K3/32C08K3/34C08K3/346C08K3/36C08K5/053C08K5/17C08K5/34922C08K2003/2224C08K2003/2227C08K2003/265C08K2003/323C08K2003/329C08L2203/202H01B3/441C08L23/12
Inventor 陈思汕程亚军沈杰聂磊付俊
Owner ZHEJIANG EXPO NEW MATERIALS CO LTD
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