High temperature performance adhesive derived from randomly segmented poly (imide siloxane) copolymer

Turkan Dogan, Tayfun Bel, Mehmet Dogan, Nesrin Koken, Nilgun Kizilcan, Nilgun Baydogan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The thermal resistance of the randomly segmented poly (imide siloxane) copolymer in adhesive form was improved as the synthetic polymer with siloxane (linked by imide units with the random form of poly (imide siloxane) copolymer). The adhesion strength of the randomly segmented poly (imide siloxane) copolymer adhesive was performed at 1 mm thickness with 6.28 E-6 m2 (6.28 mm2) surface area in a 1 cm radius. After this copolymer was adhered to the surface of the poly (methyl methacrylate) used as a space-grade thermoplastic substrate there was no failure or any dimensional change on the copolymer adhesive at the end of ten days. This result indicated that the strong bonding was achieved at 1162,89 N/m2 on the surface of the thermoplastic substrate used as the substrate in the adhesion test of the randomly segmented poly (imide siloxane) copolymer adhesive) after the cooling processing of the adhesive. The cooling processing was applied to the adhesive for the examination of the adhesive performance. In the cooling process, the adhesive has been kept cold (-5 °C) in dark for 6 months. The bonding properties of the adhesive including Si (1 1 1) crystalline were investigated and the results indicated that the adhesive was resistant to high-temperature applications until 350 °C. The formation of polysilicon-11 (as the silicone bulk in 3D) in the adhesive was significant to solve the thermal problems for the generation of the low-dimensional system (called quantum confinement effect).

Original languageEnglish
Article number116160
JournalMaterials Science and Engineering: B
Volume287
DOIs
Publication statusPublished - Jan 2023

Bibliographical note

Publisher Copyright:
© 2022 Elsevier B.V.

Funding

This work was supported by ITU BAP as PhD. thesis project with 37805 no.

FundersFunder number
Bilimsel Araştırma Projeleri Birimi, İstanbul Teknik Üniversitesi37805

    Keywords

    • Adhesion
    • Poly (imide) siloxane)
    • Polymers
    • Thermal properties

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