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High-weld bond strength polyethylene/polycarbonate (PE/PC) alloy and preparation method thereof

A technology of polycarbonate and polyethylene, applied in the field of high weld line strength polyethylene/polycarbonate alloy and its preparation, can solve the problems of component fracture failure, poor compatibility, low weld line strength, etc., and achieve weld line strength Enhanced effect

Active Publication Date: 2019-03-29
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the poor compatibility of this alloy and the low strength of the weld line, it becomes a weak point and easily leads to component fracture and failure.

Method used

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  • High-weld bond strength polyethylene/polycarbonate (PE/PC) alloy and preparation method thereof
  • High-weld bond strength polyethylene/polycarbonate (PE/PC) alloy and preparation method thereof
  • High-weld bond strength polyethylene/polycarbonate (PE/PC) alloy and preparation method thereof

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Embodiment Construction

[0032] The present invention will be further described below through specific embodiments. The following examples are preferred implementation forms of the present invention, but the implementation manners of the present invention are not limited by the following examples.

[0033] Embodiment, comparative example raw material is derived from commercially available, specifically:

[0034] Polyethylene: the number of branches contained in the branching rate of 1000 carbon atoms, the branching rate in the table is the base number of 1000 carbon atoms.

[0035] EMA: ethylene-methacrylic acid copolymer;

[0036] EEA: ethylene-ethyl acrylate copolymer;

[0037] EMA – g-GMA: ethylene-methacrylic acid grafted epoxy group, (GMA is epoxy group);

[0038] EVA: ethylene-vinyl acetate copolymer;

[0039] SEBS: styrene-ethylene-butadiene-styrene copolymer;

[0040] Compatibilizer B: PP-G-MAH (polypropylene grafted maleic anhydride);

[0041] Polycarbonate A: aromatic polycarbonate with a...

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Abstract

The invention discloses a high-weld bond strength PE / PC alloy including, by weight, 5-40 parts of PE, 40-85 parts of PC, and 1-15 parts of an ethylene copolymer compatibilizer. The PE / PC alloy has high weld bond strength, excellent melt index and good thermal aging resistance, etc.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polyethylene / polycarbonate alloy with high weld line strength and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance. It has excellent mechanical properties and excellent dimensional stability, and has good thermal stability, weather resistance, creep resistance and heat resistance. However, due to the rigid groups in the PC molecular chain, its melt viscosity is high. [0003] Blending polyolefin and polycarbonate can improve the fluidity of polycarbonate, so that the processability can be improved, and a material with good processability can be obtained. However, due to the poor compatibility of the alloy and the low strength of the weld line, it becomes a weak point and easily leads to component fracture and failure. Contents of the invention [0004] The purpose of the present inv...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L23/06C08L23/08C08L53/02
CPCC08L69/00C08L2201/08C08L2205/03C08L2205/08C08L23/06C08L23/0869C08L23/0853C08L53/025C08L2205/035C08L23/0884C08L23/12C08L53/02
Inventor 杨燕李明昆黄险波叶南飚艾军伟佟伟董相茂
Owner KINGFA SCI & TECH CO LTD
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