NDLI: Processing study of a polyimidesulfone adhesive

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Processing study of a polyimidesulfone adhesive

Content Provider	NASA Technical Reports Server (NTRS)
Author	Progar, D. J.
Copyright Year	1984
Description	An adhesive bonding process cycle study was performed for a polyimidesulfone (PISO2) recently developed as a promising structural adhesive. The high molecular weight, linear aromatic system possesses properties which make it attractive as a processable, low-cost material for elevated temperature applications. The results of a study to better understand the parameters that affect the adhesive properties of the polymer for titanium alloy adherends are detailed. These include the tape preparation, the use of a primer, and press and simulated autoclave processing conditions. The polymer was characterized using Fourier Transform Infrared Spectroscopy, glass transition temperature determination, flow measurements, and weight loss measurements. The adhesive's strength determined by lap shear strength tests was used to evaluate the effects of the bonding process variations. Higher lap shear strengths were obtained at room temperature when a primer (PISO2) was used; however, the results were the same at 232 C (450 F) with or without a primer. The use of a vacuum (simulated autoclave cycle) during titanium bonding produced similar lap shear strengths to those specimens bonded without a vacuum.
File Size	4388647
Page Count	34
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19840008271
Archival Resource Key	ark:/13960/t72v7cr4z
Language	English
Publisher Date	1984-01-01
Access Restriction	Open
Subject Keyword	Nonmetallic Materials Infrared Spectroscopy Titanium Alloys Fourier Transformation Polyimides Shear Strength Adhesive Bonding Thermoplasticity Surface Finishing Glass Transition Temperature Sulfones Molecular Weight Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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