1. Description
Antimony mercaptide compound heat stabilizer STH-2A is non-toxic
and almost odorless. It has good compatibility with PVC resin and
imparts excellent heat stability. It exhibits high initial coloration,
low migration and moderate lubricating property which facilitates
PVC calendering. When used in combination with organic tin, it produces
good synergistic effect. It is a desirable substitution of organic
tin for its low cost.
2. Specification(Q/NBON 4-2003)
| Appearance |
Light yellowish green oil |
| Sb % |
11.50~12.50 |
| S % |
8.50~9.50 |
| Refractive index nD |
1.480~1.490 |
| Color (Pt-Co) < |
150 |
| Density (ρ20°C)g/cm3 |
1.05~1.10 |
3. Application
1. For PVC colored products, eg. artificial
leaf or advert poster, rate of use is generally 1-1.2%.
2. PVC calendering, heat-shrinkable film.
4.
Package & storage
N.W. 200Kg, plastic lined iron barrel. Keep in a dry ventilated
place and avoid light. The expiration period is one year. It is
not flammable and explosive. Handle and transport in accordance
with general regulations.
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