Ethylene Propylene Copolymer (EPC) / Olefin Copolymers (OCP) Viscosity Index Improver

J-0010 OCP Polymer is a kind of Ethylene Propylene Copolymer, it is in the shape of a white transparent block, widely used as an ideal Viscosity Index Improver, to provide good shear stability and thermal stability.

 

1. The product is packed in 25kgs/bag, 42bags (1.05MT)/metal box.

2. Not dangerous chemicals, store in a dry & clean warehouse.

 

 

The raw materials were inspected before entering the factory to ensure that the requirements were met.

During the production process, sampling inspection, real-time monitoring, and correction.

After the production is finished, each batch of goods shall be sampled and tested to make sure the goods are qualified before leaving the factory.

 

 

OCP is made of ethylene and propylene as raw materials, using vanadium as the catalyst, using hydrogen or ethyl trichloroacetate to adjust molecular weight, and direct polymerization.

In the production process, the proportion of ethylene and propylene in the polymer should be appropriate, which directly affects the performance of the product.

If the content of ethylene is too high, the viscosity index is high, the crystallinity of the polymer increases, the oil solubility of the product becomes poor, and the low temperature is easy to form a gel.
In order to improve the crystallinity of ethylene polymer, propylene copolymerization is needed.

If the content of propylene is too high, the side chain of the polymer will increase, and the number of carbon on the main chain will decrease, which will reduce the viscidity and oxidation stability.

The solid OCP viscosity index improver must be dissolved in the base oil before it is blended with the base oil and other additives.

For this reason, it must first be cut into small particles and then added to high-quality diluent oil at a temperature of 100~130°C, and stirred continuously, and the viscosity of the oil is continuously increased during the dissolution process.

At present, the SSI of OCP is required to be around 25% internationally. To meet this requirement, the relative molecular weight of OCP must be reduced, and the thickening ability will also decrease accordingly, and the dosage will increase. The increase in dosage not only deteriorates the detergency of lubricating oil but also deteriorates the low-temperature performance.

Yes, Please contact Chorus's sales engineer for the latest COA and MSDS of OCP Viscosity Improver.