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Plastic materials with high bonding strength for plastic-metal hybrid applications

A technology of mixed materials and bonding strength, applied in the field of plastic materials, can solve problems such as weak acid resistance, high cost, and impractical use

Inactive Publication Date: 2021-03-23
SHPP GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are limitations associated with each of the following: for example, PBT ( / PET) discolors during the anodization process due to its weak acid resistance; nylon-based materials such as PA and PPA are resistant to acid reagents during the anodization Less resistant; and, the high cost of PEEK material makes its use almost impractical

Method used

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  • Plastic materials with high bonding strength for plastic-metal hybrid applications
  • Plastic materials with high bonding strength for plastic-metal hybrid applications
  • Plastic materials with high bonding strength for plastic-metal hybrid applications

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0113] Example 1 - Evaluation of bond strength and impact strength

[0114] The bonding strength given according to the nano-molding technique of the nano-dielectric resin material was evaluated. The material tested is a conventional non-epoxy plastic composition, or an epoxy-based composition according to the present invention. Table 2 lists the materials for forming corresponding resins:

[0115] Table 2

[0116]

[0117] In order to form a resin, a WERNER & PFLEIDER extruder ZSK 25 mm (mm) is used to rotate twin screw over 300 revolutions per hour (kilogram / hour) and 300 revolutions per hour (rpm). The material of each corresponding resin is processed. The residence time in the extruder is less than 30 seconds. Unless otherwise stated, it is then molded using Sumitomo SE180EV to mold the compound of the compound under the conditions indicated in Table 3 below.

[0118] table 3

[0119]

[0120] Using the bond tool to model the components on bond strength and darts impact....

example 2

[0133] Example 2 - Evaluation of color changes

[0134] The color change after the molded sample after the anode is evaluated. Table 7 describes the results of the evaluation of samples Ce1, E2, E4, and E5, initially described in Example 1. Rendering the value of the color coordinates.

[0135] Table 7

[0136] ΔE ΔL Δa ΔB CE1 5.43 -0.35 -0.36 5.41 E2 2.84 -0.92 -0.79 2.57 E4 6.35 -0.48 -0.73 6.29 E5 2.57 1.06 -0.54 2.28

[0137] Table 7 shows that the ΔE variation of the samples E2 and E5 of the present invention is much smaller than the ΔE change observed for CE1. Therefore, the epoxy-based composition is minimized after the epoxy composition is minimized compared to conventional PBT-based compositions.

example 3-

[0138] Example 3 - Evaluation of Performance after an increased residence time

[0139] The sample E4 was tested to determine the effect of bonding intensity imparted by the sample when the residence time in the injection molding apparatus increased. The test condition contains a cylinder temperature of 265 ° C and a mold temperature of 155 ° C. Table 8 provides the results of the assessment.

[0140] Table 8

[0141] Sayment time (minutes) 0 3 5 Key intensity (MPA) 32.25 32.22 30.67

[0142] The assessment was revealed, even after five minutes of residence time (compared to the non-residence time in the original example), the bonding strength is basically consistent.

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Abstract

Disclosed are plastic compositions for use in forming plastic-metal hybrid materials, the compositions including an epoxy compound. Also provided are plastic-metal hybrid materials that are formed using the inventive plastic compositions, methods for forming such materials, and electronic devices that include the hybrid materials. The plastic compositions confer beneficial bonding strength with the metal partner of a hybrid material, good impact strength, and low color change following anodization, and retain these favorable characteristics under a range of processing conditions.

Description

Technical field [0001] The present disclosure relates to a plastic material for bonding to metal compounds based on plastic-metal mixing applications. Background technique [0002] Plastics - metal mixing applications are increasingly received in the manufacture of electronic devices. Nanoforming Technology (NMT) is an innovative technique, which is integrated with metal by molding resin injection into metal components. This process allows for miniaturization and reduction of product thickness relative to conventional methods for integrating plastics and metal components, and typically impart improved structural strength and permanent adhesion between plastics and metals. In some cases, aqueous seal is provided. [0003] The entire process used to produce metal-plastic mixing materials is a complex and multi-step process. A key aspect is plastic performance during each stage. For example, the characteristics of the plastic are also important not only during the injection molding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/14B29C37/00B29K63/00B29K67/00C08L67/02
CPCB29C37/0082B29C45/0001B29C45/14311B29K2063/00B29K2067/006B29K2995/0094C08L67/02C08J7/14C08L23/06C08L23/0884C08L63/00B29C45/14795B29C2045/14803B29K2705/00B29L2031/34
Inventor S·李E·施瓦茨S·J·特霍斯D·金C·李
Owner SHPP GLOBAL TECH BV