Composite material capable of bonding with metal and preparation method thereof

A composite material and metal bonding technology, applied in the direction of adhesive types, hydrocarbon copolymer adhesives, non-polymer adhesive additives, etc., can solve the problem of poor chemical solvent resistance and reduced bonding force between metal and plastic etc. to achieve good chemical solvent resistance and heat resistance stability, low shrinkage, excellent heat resistance and strong acid and alkali corrosion resistance

Active Publication Date: 2016-08-03
DONGGUAN HONOUR E P
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PC is a non-crystalline plastic with poor chemical solvent resistance. In the subsequent metal surface treatment process, it needs to be treated with strong acid and strong alkali. The color of PC will change sharply, and the bonding force between metal and plastic will also be reduced. reduce

Method used

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  • Composite material capable of bonding with metal and preparation method thereof
  • Composite material capable of bonding with metal and preparation method thereof
  • Composite material capable of bonding with metal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) 55 parts of polybutylene terephthalate, 0.3 parts of antioxidant, 5 parts of functional polyolefin 1, 3 parts of toughening agent and 0.3 part of lubricant are taken by weighing 55 parts of polybutylene terephthalate with a crystallinity of 85%;

[0034] (2) Put the above components into the mixer in proportion and mix for 20 minutes;

[0035] (3) Put the mixed raw materials of step poly(2) into a twin-screw extruder, weigh 40 parts of glass fiber side feed, melt extrude, and granulate;

[0036] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of temperature control zone 1-2 is 200-260°C; the temperature of temperature control zone 3-4 is 200-260°C; the temperature of temperature control zone 5-6 is 200°C ~260℃; the temperature of temperature control zone 7-8 is 200~260℃; the temperature of temperature control zone 9-10 is 200~260℃.

Embodiment 2

[0038] (1) 55 parts of polybutylene terephthalate, 0.3 parts of antioxidant, 2.5 parts of functional polyolefin 1, 2.5 parts of functional polyolefin 2, 3 parts of toughening agent and 0.3 parts lubricant;

[0039] (2) Put the above components into the mixer in proportion and mix for 20 minutes;

[0040] (3) Put the mixed raw materials of step poly(2) into a twin-screw extruder, weigh 40 parts of glass fiber side feed, melt extrude, and granulate;

[0041] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of temperature control zone 1-2 is 200-260°C; the temperature of temperature control zone 3-4 is 200-260°C; the temperature of temperature control zone 5-6 is 200°C ~260℃; the temperature of temperature control zone 7-8 is 200~260℃; the temperature of temperature control zone 9-10 is 200~260℃.

Embodiment 3

[0043] (1) Weigh 55 parts of syndiotactic polystyrene, 0.3 part of antioxidant, 2.5 parts of functional polyolefin 1, 2.5 parts of functional polyolefin 3, 3 parts of toughening agent and 0.3 part of lubricant;

[0044] (2) Put the above components into the mixer in proportion and mix for 20 minutes;

[0045] (3) Put the mixed raw materials of step poly(2) into a twin-screw extruder, weigh 40 parts of glass fiber side feed, melt extrude, and granulate;

[0046] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of temperature control zone 1-2 is 200-260°C; the temperature of temperature control zone 3-4 is 200-260°C; the temperature of temperature control zone 5-6 is 200°C ~260℃; the temperature of temperature control zone 7-8 is 200~260℃; the temperature of temperature control zone 9-10 is 200~260℃.

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Abstract

The invention discloses a composite material capable of bonding with metal and a preparation method thereof, and relates to the field of modified polybutylene terephthalate (PBT) or modified syndiotactic polystyrene (SPS) resin. The composite material is prepared according to the proportion of the following components, and the proportions of each component are as follows: polybutylene terephthalate/syndiotactic polystyrene 40~70; glass fiber 30~60; antioxidant 0.08 ~0.6; functional polyolefin 2~5; toughening agent 2~5; lubricant 0.1~0.5. Using injection molding method, the composite material is melted on the surface of the metal substrate with nano-holes, and injected into the nano-holes by injection molding pressure, so as to realize the integrated molding of metal and plastic. Because the present invention uses PBT or SPS with high crystallinity, after the composite material is integrated with the metal, it is not only firmly bonded to the metal, but also can withstand the subsequent strong acid and strong alkali treatment of the metal, the product color changes little, and the composite material Stable mechanical properties.

Description

technical field [0001] The invention relates to the field of modified polybutylene terephthalate or modified syndiotactic polystyrene resin, in particular to a composite material which can be firmly combined with metal and a preparation method thereof. Background technique [0002] Nano-injection molding technology is a technology that directly uses injection molding to achieve a firm combination of plastic and metal. This technology can replace the traditional metal-plastic integration technology using adhesives, eliminating the need for gluing processes and shortening the production process. The cost can be saved, and the structure and appearance of the product are more compact and reasonable. Now, nano-injection molding technology has been widely used in automobiles, household electrical appliances and mobile phone devices. [0003] The plastic material used in nano-injection molding technology is generally glass fiber-reinforced polyphenylene sulfide resin (PPS) or PBT ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J167/02C09J125/06C09J11/04C09J11/06
Inventor 周宇马述伟曹建伟
Owner DONGGUAN HONOUR E P
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