Black master batch

Production introduction

The black master batch was produced according to the general condition of existing black master batch, and the specific production process is as follows: selecting nano carbon black with high dispersibility and high quality as main raw material, and implementing the new processing technology. The product aims at serving for more customers.

Application field

The product is applied to the fields such as the black plastic film including PE as the main carrier, the plastic bag, pipes and sheets.

Process advantages

The main process is banburying which improves the bearing capacity of carrier to carbon black; meanwhile, the carbon black can enter into the carrier more evenly.

There are also some improves to the process, such as the process of using double-screw extruder connected to single screw and banburying machine for banburying， then implementing banburying by using double double-wrist extruder or banburying machine and connecting double screw with single screw, of which the purpose is to improve the dispersibility of black master batch in the film product. 

However, the existing process is still“ kettle type ”, i.e. batching and mixing one pot by one pot, in which it is inevitable that the repeated operation of batching will increase the instability of product.By communicating with equipment manufacturer and combining with the existing process features, we designed a set of new processes.

Product features

1. The appearance is shown in the form of a ball and featured with high glossiness and blackness.

2. The content of carbon black is reached to 45% and above. which is in line with the standard of first-class product in themarket.

3. There is no any oligomer and separation, and therefore the surface damage due to the educt can be prevented.

4. The heat deflection temperature of product is improved by 5-10℃.

Quality management and control

To ensure the quality product, we will inspect the products in different period of time.

The consistence of melt index of the product to the standard(mfr=28-30) will be inspected through a flow rate instrument.

The dispersion effect and shielding effect of the product will be inspected by means of the test of film blowing.

Package and storage

Package:25kg, moisture-proof plastic bag with lining bag.

Storage:The product shall be stored in a dry and ventilated place.