White Mineral Oil, CAS No. : 8042-47-5, Purity : 98%

Product Features

The 68# industrial white oil produced by WJWAX is very suitable for the production and processing of PS(Polystyrene), and customer feedback has been very good. If you need to purchase similar white oil products, you can contact our factory for a quotation, with first-hand supply and excellent quality.

Here are a few key points about using white mineral oil as a plasticizer for polystyrene (PS):

White mineral oil is a paraffinic mineral oil that is commonly used as a plasticizer for polystyrene. It helps make the polystyrene more flexible and workable.

The white mineral oil needs to meet specifications for use in PS. A common grade is White Mineral Oil NO.68, which has a viscosity of about 68 cSt at 40°C.

Product Application

The mineral oil is typically added at 10-15% by weight to the polystyrene resin before processing. Too much oil can make the PS too soft while too little may not provide enough plasticization.

The mineral oil does not chemically react with the PS. It works by embedding between the polymer chains, spacing them apart. This increases chain mobility and flexibility.

After processing, the mineral oil may slowly migrate out of the PS over time, resulting in embrittlement. This may limit use of mineral oil for long-term flexible PS products.

Proper mixing and temperature control is needed when adding the mineral oil to ensure uniform plasticization without degrading the PS.

Certificate of Analysis for WHITE OIL 68# (COA)

FAQs

What are the typical usage levels of white mineral oil when plasticizing polystyrene?

White mineral oil is typically used at 10-15% by weight relative to the polystyrene resin. Lower levels may not provide enough plasticization while higher levels can make the polystyrene too soft.

Does the mineral oil react chemically with the polystyrene?

No, the mineral oil does not chemically bond to the polystyrene. It works by embedding between the polymer chains and spacing them apart. This increases mobility and flexibility but means the oil can migrate out over time.

What grade of mineral oil is commonly used as a plasticizer for polystyrene?

White Mineral Oil NO.68 is a common choice. It has a viscosity of about 68 cSt at 40°C. The grade needs to be selected to provide the desired level of plasticization at typical processing temperatures.