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A polycarbonate alloy with high ultrasonic welding strength and preparation method thereof

An ultrasonic welding and polycarbonate technology, which is applied in the field of polycarbonate alloys with high ultrasonic welding strength and its preparation, can solve the problems of harsh welding conditions, low welding strength, poor welding seam sealing, etc., and achieve high ultrasonic welding strength. , Melt strength improvement, the effect of improving melt strength

Active Publication Date: 2019-05-24
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultrasonic welding of PMMA and PC alloys is prone to problems such as poor compatibility, low welding strength, poor weld sealing and harsh welding conditions, which in turn affects the application of automotive lamp welding products

Method used

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  • A polycarbonate alloy with high ultrasonic welding strength and preparation method thereof
  • A polycarbonate alloy with high ultrasonic welding strength and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of polycarbonate alloy of high ultrasonic welding strength ultrasonic welding and preparation method thereof, this method comprises the following steps:

[0028] (1) Weigh each component by weight: 50 parts of PCHC, 50 parts of ABS, 0.5 part of talc, 1 part of antioxidant, and 0.6 parts of ST-6.

[0029] (2) Feed the raw material from the feed port, melt and extrude at 200-280°C, the screw extruder rotates at 490rpm, and the pressure is 2MPa, melts and extrudes, and granulates to obtain the product.

[0030] (3) The screw diameter of the extruder is 45mm, and the aspect ratio is 32.

Embodiment 2

[0032] A kind of polycarbonate alloy of high ultrasonic welding strength ultrasonic welding and preparation method thereof, this method comprises the following steps:

[0033] (1) Weigh each component by weight: 35 parts of PCHC, 65 parts of ABS, 0.3 part of talcum powder, 0.5 part of antioxidant, 0.5 part of ST-6.

[0034] (2) Feed the raw material from the feed port, melt and extrude at 200-280°C, the screw extruder rotates at 490rpm, and the pressure is 2MPa, melts and extrudes, and granulates to obtain the product.

[0035] (3) The screw diameter of the extruder is 45mm, and the aspect ratio is 32.

Embodiment 3

[0037] A kind of polycarbonate alloy of high ultrasonic welding strength ultrasonic welding and preparation method thereof, this method comprises the following steps:

[0038] (1) Weigh each component by weight: 20 parts of PCHC, 80 parts of ABS, 0.1 part of talcum powder, 0.1 part of antioxidant, and 0.3 parts of ST-6.

[0039] (2) Feed the raw materials from the feeding port, melt and extrude at 200-280°C, the screw extruder rotates at 490rpm, and the pressure is 2MPa, melts and extrudes, and granulates to obtain the product.

[0040] (3) The screw diameter of the extruder is 45mm, and the aspect ratio is 32.

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Abstract

The invention relates to a polycarbonate alloy having high ultrasonic welding strength and a preparation method thereof. The polycarbonate alloy is prepared through the following steps: (a) weighing 20-50 parts of polycarbonate, 50-80 parts of ABS (Acrylonitrile Butadiene Styrene), 0.1-0.5 part of a welding strengthening additive, 0.1-1 part of an antioxidant, 0.3-0.6 part of a compatilizer in parts by weight, and mixing; and (b) feeding the mixture obtained in step (a) into a twin-screw extruder, fusing, extruding and pelleting to obtain the polycarbonate alloy. Compared with the prior art, the polycarbonate alloy has the advantages of high welding strength and no welding fragment, and is suitable for a relatively wide ultrasonic welding condition and ultrasonic welding for a dissimilar material piece, etc.

Description

technical field [0001] The invention relates to the field of polymer material processing, in particular to a polycarbonate alloy with high ultrasonic welding strength and a preparation method thereof. Background technique [0002] Ultrasonic welding is to transmit ultrasonic energy through the material, vibrate and generate heat, and reach the melting point of the solder joint. After a certain pressure is applied, the surface of the electrode is fused through the entanglement between molecules. At present, ultrasonic welding does not require flux, is convenient and quick, and takes a short time, making it widely used in plastic film packaging, taillight welding, and connection of large parts. [0003] Ultrasonic welding is a convenient welding method, which is widely used in the connection of automobile tail lights at this stage. Automobile tail lights need to connect PMMA transparent headlights with PC alloy shells. Ultrasonic welding of PMMA and PC alloys is prone to pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08L69/00C08K9/10C08K3/26C08K3/34
CPCC08K2201/014C08L55/02C08L69/00C08L2205/03C08L2205/08C08K9/10C08K2003/265C08K3/34
Inventor 王璐李强罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS