9 Nov
2012
9 Nov
'12
3:13 p.m.
On Fri, 9 Nov 2012, Tony Duell wrote:
I am nto convinced. Many plastixs go brittle with age, asn the
plsticiser evapourates. I would guess that for somethign like a toner
cartridge the plastic used would not be chosen because it had a long
lifetime.
High carbon, high heat plastics are brittle by their nature, but they also
tend to age very well. By comparison, PC+ABS blends often age poorly and
some blends can become extremely brittle with age. To make matters worse,
there seems to be no way to effectively solvent weld PC+ABS blends. On the
other hand, most ABS blends /without/ polycarbonate tend to solvent weld
very very well with solvents such as dichloromethane (methylene chloride).
> How many times can they be refilled ?
The plastic can last forever, if well cared. The comsumables (doctor