22 октября, 2015 
Pokraskin  |
This TPE is used for handles on power and hand tools but also as grips on everything from pens to golf clubs. Manufacturers use two-shot mouldings to form these grips but sometimes adhesives are required for prototype parts or for supplementing
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Table 4.9 Adhesive shear strength (neoprene rubber)
Notes: * Substrate failure |
|
Adhesive type |
Description |
Shear strength (N/mm2) |
|
Cyanoacrylate |
Standard ethyl |
>1.7* |
|
Toughened |
>1.7* |
|
|
Ethyl + primer |
>2.0* |
|
|
Two-part acrylic |
MMA |
0.3 |
|
Silicone |
Alkoxy silicone |
0.4 |
|
UV acrylic |
Visible light cure |
0.7 |
|
Table 4.10 Adhesive shear strength (polyisoprene) |
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Notes: * Substrate failure |
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mechanical fits or small production runs where the tooling for a two-shot moulding is prohibitively expensive.
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Thermoplastic elastomers can be quite difficult to adhesively bond (Table 4.11) and invariably a primer or some other form of surface treatment (see Section 6.3) is necessary.
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Table 4.11 Adhesive shear strengths (polyolefin elastomers)
Notes: * Substrate failure |
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