Investigation on the Adhesive

A problematic part in the production of glass-plastic hybrid connection is the large-area adhesion of glass sheets with plastic sheets. The goal is to produce connections which are durable, stress-relieved and optically clear. Especially the latter point poses a considerable technological challenge.

For the first experiments polycarbonates from the company Bayer (Makrolon GP 099) and from the company GE Plastics (Lexan PC) were chosen from the wide range of plastics (P). The used float glass belongs to the group of lime-natronsilicate glasses. The specimens consisted of a compound (3 mm glass – 3 mm plastic – 3 mm glass) with the dimensions 300 mm length and 80 mm width. With regard to the adhesives (A) and the surface pre-treatments (SPT) different combinations were investi­gated.

The aging cycle D3 „Heat, Coldness and Humidity“ taken from the standard DIN EN ISO 9142 (Stan­dard, 2004) represents the climate conditions occurring in the case of glass constructions best. A de­termined humidity was not set in the experiments, they were limited to temperature cycles in the fol­lowing steps: [11]

For the production of a bending element the following materials and methods were used:

• Makrolon GP 099 as plastic,

• Acryl 1K, uv-hardening as adhesive,

• Pyrosil method as surface pre-treatment.