A) Technologic Index
The specification is as the following table.
DY-2 is mainly applied in strippable coating, PVC ink, silk-screen
printing ink, paper ink, electric cable material, pigment paste and
flake for PU, PVC adhesive, transfer printing coating, thermal
insulating foaming material, additive for PVC modification, coating
C) Solubility & Compatibility
For DY-2 type of bipolymer, keton solvents are specially suited,
such as acetone, MEK, nadone and isophorone. Ester solvents have
lower solubility for DY-2 resin, such as methyl acetate, ethyl
acetate and butyl acetate etc, Therefore, we need to heat the
solution or add ketone solvents into the solution while DY-2 resin
is dissolved in ester solvents. Chlorohydrocarbons, Nitro compound
and alicyclic solvents, such as dichloroethane and diethylene
oxide, also can dissolve DY-2 type of bipolymer, but these kinds of
solvent are toxic, they are only used in special situation.
DY-2 type of bipolymer is miscible with other resins during the
course of usage, such as other types of vinyl chloride vinyl
acetate copolymer, PVC resin, perchloro-ethylene resin, ketone
resins, chloroprene rubber, NBR, polyacrylate, epoxy resin,
polyester and petroleum resin etc.
D) Pigments & Stuffing
Most of pigments and stuffing can be used with DY-2 type of
bipolymer, such as titanium dioxide, chromium oxide green, carbon
black, chrome yellow, barite, mica powder, talcum powder, calcium
carbonate etc. We have to be extremely careful when use zinc,
cadmium and ferric oxide as the pigment, because they have
catalysis at high temperature for decomposition reaction of vinyl
chloride vinyl acetate copolymers.
DY-2 resin has excellent light and heat stability, but when it is
used outdoors or at higher temperature, the following stabilizers
are suggested to use with it, such as organotin stabilizer without
sulphur, epoxy compound stabilizers, light resistant ultraviolet
F) Packaging and Storage
DY-2 resin is usually packaged according to 25Kgs per bag, which is
the craft paper-plastic composite bag lined with plastic film.
DY-2 resin should be stored in cool and dry place away from
sunlight. Any queries on technology or quality assurance can be
inquired to our company. Should the DY-2 resin have been kept over
the shelf time, it shouldn't mean the resin is invalid, but the
user has to test the relevant properties of DY-2 resin and its
finished product before using it in bulk.
|No.||Item||Index||Test Method & Criteria|
|1||Appearance||White powder||By visual|
|5||Vinyl Acetate Content|
(through 60 mesh)
|9||Impurity Particle No.|
|Colorless, Transparent, No insoluble matter||By visual|