Wear-resistant carbon fiber reinforced nylon 66 resin composition and preparation method thereof

A resin composition and carbon fiber technology, applied in the field of wear-resistant carbon fiber reinforced nylon 66 resin composition, can solve the problems of reduced tensile strength and low impact strength, and achieve good bending strength and modulus, impact strength and wear resistance. Increased, low coefficient of friction and wear effects

Active Publication Date: 2014-01-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the impact strength of the existing wear-resistant carbon fiber reinforced nylon 66 resin composition is low, and the tensile strength will decrease after adding an impact modifier. A new wear-resistant carbon fiber reinforced nylon is provided. 66 resin composition

Method used

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  • Wear-resistant carbon fiber reinforced nylon 66 resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Twin-screw extruder (Germany LEISTRITZ company, MICRO 27 type) barrel temperature is set to 250°C, 260°C, 270°C, 280°C, 285°C, 290°C, 290°C, 290°C from the feeding port to the die , 290°C, 285°C, set an opening in the fourth section from the feeding port to introduce continuous carbon fiber. Load the dry nylon 66 resin and nylon 6 resin mixture into the pellet weight loss feeder, the weight ratio of nylon 66 resin and nylon 6 resin is 95 / 5; put polytetrafluoroethylene resin +0.5 into the powder resin weight loss feeder %Antioxidant 1010 mixture (by weight percentage of the prepared resin composition, the same below). When the actual temperature of the barrel reaches the set temperature, turn on the twin-screw to make the speed reach 150 rpm, and then turn on the pellet resin weight loss feeder and powder resin weight loss feeder, so that the pellet resin feed rate is 2.55kg / h ( Calculated by polytetrafluoroethylene resin, the same below), the feeding speed of the powde...

Embodiment 2

[0048] The barrel temperature setting of each section of the twin-screw extruder is the same as in Example 1, and the dry mixture of nylon 66 resin and nylon 6 resin is loaded into the pellet weight loss feeder, and the weight ratio of nylon 66 resin and nylon 6 resin is 85 / 15 ; Load polytetrafluoroethylene resin+0.5% antioxidant 1010 mixture in the powder resin weight loss feeder. When the actual temperature of the barrel reaches the set temperature, turn on the twin-screw to make the speed reach 150 rpm, so that the feeding speed of the pellet resin is 2.55kg / h, the feeding speed of the powder resin is 0.45kg / h, four strands of 12K carbon fiber -1 Introduce the barrel of the twin-screw extruder from the opening of the fourth section, mix the resin and carbon fiber, extrude into strips, and water-cool and pelletize to obtain a wear-resistant carbon fiber-reinforced nylon 66 resin composition. The properties of the composition tested after injection molding are shown in Table ...

Embodiment 3

[0051] The barrel temperature setting of each section of the twin-screw extruder is the same as in Example 1, and the dry mixture of nylon 66 resin and nylon 6 resin is loaded into the pellet weight loss feeder, and the weight ratio of nylon 66 resin and nylon 6 resin is 95 / 5 ; Load polytetrafluoroethylene resin+0.5% antioxidant 1010 mixture in the powder resin weight loss feeder. When the actual temperature of the barrel reaches the set temperature, turn on the twin-screw to make the speed reach 171 rpm, so that the feeding speed of the pellet resin is 2.55kg / h, the feeding speed of the powder resin is 0.45kg / h, four strands of 12K carbon fiber -2 Introduce the barrel of the twin-screw extruder from the opening of the fourth section, mix the resin and carbon fiber, extrude into strips, and water-cool and pelletize to obtain a wear-resistant carbon fiber reinforced nylon 66 resin composition. The properties of the composition tested after injection molding are shown in Table 1...

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Abstract

The invention relates to a wear-resistant carbon fiber reinforced nylon 66 resin composition and a preparation method thereof, which mainly solves the problem of low impact strength of the existing wear-resistant carbon fiber reinforced nylon 66 resin composition and the problem that the tensile strength can be lowered after adding an impact modifier. The wear-resistant carbon fiber reinforced nylon 66 resin composition comprises the following components in parts by weight: A 45-70 parts of nylon 66 resin, B 1-20 parts of nylon 6 resin, C 5-25 parts of polytetrafluoroethylene resin, D 10-40 parts of carbon fiber and E 0.01-5 parts of at least one assistant from an antioxidant and a compatilizer. The technical scheme provided by the invention well solves the problem, and can be used for industrial production of injection molding processing of gears, bearings, pulleys, mechanical pump rotors and other mechanical parts.

Description

technical field [0001] The invention relates to a wear-resistant carbon fiber reinforced nylon 66 resin composition with improved impact strength and a preparation method thereof. Background technique [0002] In recent years, with the increase of carbon fiber production and price reduction, the application of carbon fiber reinforced thermoplastic resin composite materials has become more and more widespread. For example, US Patent No. 6,231,788 discloses a carbon fiber with electromagnetic shielding properties composed of PC-ABS resin composite and carbon fiber. Composite material, which can be used for dust-proof equipment and notebook computer casing; Chinese patent CN101139462 discloses a flame-retardant carbon fiber composite material composed of polyamide resin, carbon fiber, red phosphorus flame retardant, toughening agent, etc.; Chinese patent CN1165523 discloses A carbon fiber composite material with excellent abrasion resistance composed of ground carbon fiber, pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L27/18C08K9/04C08K7/06C08K3/04C08J5/06
CPCC08L77/06C08L2205/02C08L2205/03C08L27/18C08L77/02C08K7/06
Inventor 傅荣政王芳姚斌
Owner CHINA PETROLEUM & CHEM CORP
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