High-temperature-resistant laser welding reinforced PC / PBT composite material and preparation method thereof

By optimizing the composition ratio and processing technology of PC/PBT composite materials, the high temperature resistance, laser transmittance and mechanical properties of the materials have been improved. This solves the problems of insufficient welding strength and low light transmittance of materials in high temperature environments in existing technologies, and meets the usage requirements of automotive engine peripheral parts and high temperature electronic components.

CN121108698APending Publication Date: 2025-12-12POLYSTAR ENG PLASTICS (SHANGHAI) CO LTD
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202511663662.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-13
Publication Date
2025-12-12

Smart Images

  • Figure CN121108698A_ABST
    Figure CN121108698A_ABST
Patent Text Reader

Abstract

The invention discloses a high-temperature-resistant laser welding reinforced PC / PBT composite material and a preparation method thereof. The composite material comprises the following components in parts by weight: 35-50 parts of PBT, 15-35 parts of PC, 12-28 parts of alkali-free glass fiber and a plurality of functional aids. The preparation method comprises the steps of raw material pretreatment, vacuum premixing, electrode induction and the like, the high temperature resistance, the laser transmittance and the mechanical property of the material are improved by compounding the high-temperature-resistant modifier and the ester exchange inhibitor and combining the processes of vacuum melting, electrode induction and the like, the thermal deformation temperature is 160-180 DEG C, the light transmittance exceeds 26%, the bending strength is larger than or equal to 187 MPa, the material is suitable for a high-temperature laser welding scene, and the application range is wide. The method is suitable for manufacturing precision parts in automobile and electronic fields.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • High-temperature resistant and high-gloss PET / PBT composite material and preparation method thereof

    CN102719060A

  • Anti-warping laser welding PC / PBT composite material and preparation method thereof

    CN114456553A

  • High electrical performance PC / polyester material and preparation method therefor

    WO2023284311A1