Nylon-based high filling master batch and preparation method thereof

A technology for filling master batch and nylon, which is applied in the field of nylon-based high filling master batch and its preparation, and achieves the effects of low cost, broad market application prospect and simple preparation process

Inactive Publication Date: 2012-06-27
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, nylon 6 is used as the carrier, and there is no report on the pro

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add 18.5wt% of PA6 M2400, 80wt% of calcium carbonate, 0.2wt% of antioxidant 1098, 0.2wt% of antioxidant U627A, and 1.0wt% of lubricant into a high-speed mixer equipped with a temperature control device. After stirring for 10 minutes, the mixture was released from the high-speed mixer, and then extruded and granulated by reciprocating single-screw.

[0028] Mix 65wt% PA6 M2400 and 25wt% of the masterbatch prepared above and add them to the twin-screw extruder, add 10wt% glass fiber to the special glass fiber port of the twin-screw extruder, and extrude to pelletize. The processing conditions are: the temperature of the first zone is 220°C, the temperature of the second zone is 250°C, the temperature of the third zone is 240°C, the temperature of the fourth zone is 240°C, the temperature of the fifth zone is 240°C, the temperature of the sixth zone is 2400°C, and the temperature of the seventh zone is 230°C, the temperature in the eighth zone is 230°C, and the temperature...

Embodiment 2

[0031] Add 28.5wt% of PA6 M2400, 70wt% of calcium carbonate, 0.2wt% of antioxidant 1098, 0.2wt% of antioxidant U627A, and 1.0wt% of lubricant into a high-speed mixer equipped with a temperature control device. After stirring for 10 minutes, the mixture was released from the high-speed mixer, and then extruded and granulated by reciprocating single-screw.

[0032] Mix 61.43wt% PA6 M2400 and 28.57wt% of the masterbatch prepared above and add it to the twin-screw extruder, add 10wt% glass fiber to the special glass fiber port of the twin-screw extruder, extrude and pelletize . The processing conditions are: the temperature of the first zone is 220°C, the temperature of the second zone is 250°C, the temperature of the third zone is 240°C, the temperature of the fourth zone is 240°C, the temperature of the fifth zone is 240°C, the temperature of the sixth zone is 2400°C, and the temperature of the seventh zone is 230°C, the temperature in the eighth zone is 230°C, and the temperat...

Embodiment 3

[0035]Add 38.5wt% of PA6 M2400, 60wt% of calcium carbonate, 0.2wt% of antioxidant 1098, 0.2wt% of antioxidant U627A, and 1.0wt% of lubricant into a high-speed mixer equipped with a temperature control device. After stirring for 10 minutes, the mixture was released from the high-speed mixer, and then extruded and granulated by reciprocating single-screw.

[0036] Mix 56.67wt% PA6 M2400 and 33.33wt% of the masterbatch prepared above and add them to the twin-screw extruder, add 10wt% glass fiber at the special glass fiber port of the twin-screw extruder, extrude and pelletize . The processing conditions are: the temperature of the first zone is 220°C, the temperature of the second zone is 250°C, the temperature of the third zone is 240°C, the temperature of the fourth zone is 240°C, the temperature of the fifth zone is 240°C, the temperature of the sixth zone is 2400°C, and the temperature of the seventh zone is 230°C, the temperature in the eighth zone is 230°C, and the tempera...

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PUM

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Abstract

The invention discloses nylon-based high filling master batch and a preparation method thereof. The nylon-based high filling master batch is characterized by consisting of 20 to 40 weight percent of nylon-6 resin, 60 to 80 weight percent of filler, 0.1 to 0.5 weight percent of antioxygen, and 0.5 to 1.5 weight percent of lubricating agent. The preparation method comprises the following steps of: adding the nylon-6 resin, the filler, the antioxygen, and the lubricating agent into a high-speed mixer, and uniformly stirring; and adding a mixed material obtained in the step into a reciprocating single-screw extruder, extruding, cooling, drying and cutting into particles. The invention has the advantages that the content of the filler in the master batch can reach over 60 weight percent, the filler is uniformly dispersed in a nylon matrix, the master batch is accurate in ash content, and is suitable for modification and processing of nylon, and a nylon composite material with excellent performance can be prepared from the master batch. Moreover, the master batch has the advantages of simple preparation process, low cost and the like, meets the industrial production requirement and has wide market application prospect.

Description

technical field [0001] The invention relates to a nylon-based high-filling masterbatch and a preparation method thereof, belonging to the field of polymer processing. Background technique [0002] Nylon 6 is an engineering plastic with a wide range of uses. Its melting point is 215-225°C and its service temperature ranges from -40°C to 150°C. Adding various inorganic fillers to nylon for filling and strengthening modification can not only reduce the material cost, but also significantly improve some properties of the material, such as mechanical properties, thermal properties, shrinkage, etc., and prevent warpage and Dimensional temperature resistance is of great help, this filled reinforced nylon material is widely used in the automotive industry, such as car engine covers, cooling fans and so on. [0003] The traditional production method of filled and reinforced nylon materials is mainly to mix nylon resin, fillers and other processing aids evenly and then add them to th...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K13/04C08K3/34C08K7/20C08K7/14C08K3/26C08J3/22B29C47/92B29C48/92
CPCB29C48/911B29C48/0022B29C48/04B29C48/397
Inventor 肖军华丁正亚罗立波李志路张永
Owner SHANGHAI KINGFA SCI & TECH
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