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Preparation method for wear resistance nylon 1010 containing novel antioxidant

An antioxidant and nylon technology, applied in the field of preparation of wear-resistant nylon 1010, can solve the problems such as the inability to significantly improve the wear resistance of nylon 1010, the inability to prevent the oxidative deterioration of molybdenum disulfide, and the easy failure of molybdenum disulfide, etc. Excellent performance, long service life and good wear resistance

Active Publication Date: 2014-01-01
宁波锦地工程塑料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, molybdenum disulfide is easily oxidized into molybdenum trioxide crystals without wear resistance at high temperatures.
Due to the high temperature of nylon 1010 during processing, molybdenum disulfide is prone to failure, resulting in no significant improvement in the wear resistance of nylon 1010
Ordinary organic antioxidants cannot prevent the oxidation and deterioration of molybdenum disulfide during processing, so it is necessary to find a new type of antioxidant to inhibit the oxidation of molybdenum disulfide during high-temperature processing, in order to maximize the wear resistance of nylon 1010

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step (1). Weigh 1000 grams of nylon 1010, 150 grams of molybdenum disulfide, 20 grams of titanium dioxide, 3 grams of antioxidant B225, and 5 grams of titanium metal powder.

[0026] Step (2). The above-mentioned raw materials were added to a high-speed mixer with a rotation speed of 300 rpm and mixed for 10 minutes to obtain a mixture.

[0027] Step (3). The above-mentioned mixture is added to a twin-screw extruder with a screw speed of 100 rpm to extrude and granulate. The processing temperature of the twin-screw extruder is 220° C. in the feeding section and 230° C. in the plasticizing section. The homogenization section is 240°C, the temperature of the head is 210°C, and then placed in a water tank with a temperature of 25°C, water-cooled and pelletized at a speed of 400rpm, and then vacuum-dried at 80°C for 10 hours to obtain wear-resistant nylon 1010 particles .

[0028] The wear-resistant nylon 66 prepared in Example 1 has excellent mechanical properties and goo...

Embodiment 2

[0032] Step (1). Weigh 1000 grams of nylon 6, 50 grams of molybdenum disulfide, 50 grams of titanium dioxide, 10 grams of antioxidant B225, and 10 grams of titanium metal powder.

[0033] Step (2). The above-mentioned raw materials were added to a high-speed mixer with a rotation speed of 800 rpm and mixed for 3 minutes to obtain a mixture.

[0034] Step (3). The above-mentioned mixture is added to a twin-screw extruder with a screw speed of 80 rpm for extrusion and granulation. During the processing of the twin-screw extruder, the processing temperature is 230°C in the feeding section and 240°C in the plasticizing section. The homogenization section is 250°C, the head temperature is 230°C, and then placed in a water tank at a temperature of 15°C, water-cooled and pelletized with a pelletizer at a speed of 300 rpm, and then vacuum-dried at 70°C for 5 hours to obtain wear-resistant nylon 1010 particles .

Embodiment 3

[0036] Step (1). Weigh 1000 grams of nylon 6, 200 grams of molybdenum disulfide, 10 grams of titanium dioxide, 1g

[0037] Antioxidant B215, 6 grams of titanium metal powder.

[0038] Step (2). The above-mentioned raw materials were added to a high-speed mixer with a rotation speed of 500 rpm and mixed for 5 minutes to obtain a mixture.

[0039] Step (3). The above-mentioned mixture is added to a twin-screw extruder with a screw speed of 80 rpm for extrusion and granulation. During the processing of the twin-screw extruder, the processing temperature is 220°C in the feeding section and 240°C in the plasticizing section. The homogenization section is 245°C, the head temperature is 220°C, and then placed in a water tank with a temperature of 40°C, water-cooled and pelletized at a speed of 800rpm, and then vacuum-dried at 90°C for 6 hours to obtain wear-resistant nylon 1010 particles .

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Abstract

The present invention relates to a preparation method for wear resistance nylon 1010 containing a novel antioxidant, wherein 100 parts of wear resistance nylon 1010, 5-20 parts of a wear resistance agent molybdenum disulfide, 1-5 parts of a wear resistance agent titanium dioxide, 0.1-1 part of an organic antioxidant, and 0.1-1 part of a metal antioxidant titanium powder are uniformly mixed and then are subjected to melting extrusion granulation through a twin-screw extruder to prepare the wear resistance nylon 1010. The wear resistance nylon 1010 has excellent wear resistance and good mechanical property.

Description

technical field [0001] The invention relates to a preparation method of wear-resistant nylon 1010, in particular to a preparation method of wear-resistant nylon 1010 containing novel antioxidant. Background technique [0002] Nylon 1010 is a very important engineering plastic with excellent mechanical properties, good impact toughness, wear resistance and self-lubrication, high thermodynamic deformation temperature, low water absorption, good electrical insulation and chemical stability, and is widely used In all kinds of wear-resistant devices. In order to further increase the wear resistance of nylon 1010, at present, the addition of inorganic wear-resistant fillers is mainly used to reduce the friction coefficient of the material. The Chinese patent No. CN102757641 A provides a method for preparing high-tough wear-resistant nylon, wherein the wear-resistant agent used is one of graphite, silicon carbide or molybdenum disulfide. Molybdenum disulfide is a low-cost, high-p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K13/02C08K3/30C08K3/22C08K3/08B29B9/06B29C47/92B29C48/92
CPCB29C48/911B29C48/04C08K13/02B29B9/06B29C48/92C08K3/08C08K3/22C08K3/30C08K2003/0881C08K2003/2241C08K2003/3009C08K2201/005C08L77/06
Inventor 沈国璋程亚军肖颖付俊
Owner 宁波锦地工程塑料有限公司
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