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Technique
for Polyamide Hot-melt Adhesives
Different
DCA and their diamines converted with DCA, together with
caprolactam, can be copolymerized to produce excellent
hot-melt adhesives.
Synthesizing
technology of copolyamides (nylon6/610/613 and
nylon6/1010/613 Copolyamides) also has been developed by
FRIPP. This kind of copolyamides is mainly used for
hot-melt adhesive for costume manufacturing. During the
research, software was applied to determine composition of
copolyamides, and a mathematic model between composition
and properties of hot melt adhesive was established. This
model can be used to determine composition of product with
different properties according to the demand of user. This
technology has been granted Chinese patent in 1998. In
FRIPP, a pilot-plant was established to produce polyamide
hot-melt adhesives with different range of melting point.
The main properties of products are listed in the table 3.
Table
3 Main Properties of Hot-melt Adhesive
|
Item |
Properties |
|
Appearance |
White
powder |
|
point,≧ |
110-120 |
|
Melt
index(150≧,2.15kg),g/10min |
16 |
|
Peeling
strength (kgf/2.5) |
11 |
|
Washing
peeling strength (kgf/2.5) |
6.0 |
|
Dry-clean
peeling strength (kgf/2.5) |
6.4 |
|
