1. testing material
Silicone light (cutting by 4 pcs bulbs, approx 37mm)
2. Adherence medicine
Acrylic fiber 3mm (sumipex000)
Vinyl chloride 3mm (TS608)
Polycarbonate 3mm (PC1600)
3. Adhesive
(1) Rocktite 401(Japan Rocktite corporation)
Preprocessing medicine for adhesive 770
Instant adhesive 401
(2) alteco ace 88(Alpha Technical Research Co.)
Primer PR-550
Instant Adhesive type88
(3) Super X No.8008 (Cemedine Co.,Lrd)
Silicone degeneration polymer system elasticity adhesive
(4) Shin Etsu Silicone KE45T (Shin Etsu chemical Co.Ltd)
Silicone elasticity adhesive
4. Bonding test method
Test method
Bonding pull examination : normal temperature, 18 days after bonding
Pull speed : 10mm/min.
| adhesive | Acrylic fiber |
Vinyl Chloride |
Polycarbonate |
|---|---|---|---|
(1)Average |
1.59 2.30 2.68 |
1.8 1.68 2.30 |
2.06 1.90 2.19 |
2.19 |
1.93 |
2.05 |
|
(2)Average |
2.09 1.70 1.93 |
2.10 1.80 2.28 |
2.25 1.90 2.19 |
1.91 |
2.06 |
2.05 |
|
(3)Average |
0.53 1.04 0.45 |
1.40 1.05 1.40 |
0.95 0.50 0.90 |
0.67 |
1.29 |
0.78 |
|
(4)Average |
0.09 0.31 0.20 |
0.42 0.55 0.50 |
0.62 1.47 1.03 |
0.20 |
0.49 |
1.04 |
Remark : red letter means torn off. (material destruction)
6. Consideration
It can be said that adhesive rocktite 401 is the best from the general evaluation point of view because primer is required but it is good at strength of bond.
It can be said that alteco ace 88 is a little difficult to use because of low viscosity and the lack of effect of filling of burying the space in the bonded part.
There is advantage which is able to be bonded immediately because both are instant adhesive.
However, above is uncertain because of the result of short period bonding strength test while confirming as for bonding strength change in weather resistance.
In general, silicone light seems to be few damaged as for bonding strength change in weather resistance.
Silicone light is not able to be utilized the place which strength is required because more than one day is required for bonding and the strength is a fraction to be compared with instant adhesive.