Recently, the 350000 T / a polypropylene plant of Sinopec refining and Chemical Co., Ltd. successfully trial produced a new brand of high melt index fiber material, filling the gap of high melt index fiber material by degradation method in South China of Sinopec. The product has the characteristics of high strength. It is a high-quality raw material for high-speed non-woven fabric of medical mask, and has a good market prospect.
The reporter learned that the production of high melting fiber material needs to add solid degradation agent in the extrusion granulation section. The resin melt index will be increased from 3G / 10min to 38g / 10min. High melt index will improve the fluidity of the material. At the same time, it is also very easy to produce sheet material or adhesive material, resulting in the material filling the pelletizing water chamber. In serious cases, it will even fill the downstream centrifugal drying system, which is easy to occur "Enema" accident. In order to avoid risks to the greatest extent and ensure a successful trial production of the new brand, Huang Jixing, the plant supervisor, and Cao Tianyun, the team leader, have repeatedly "learned" from brother units with production experience of this brand , carefully prepared the trial production scheme and brand switching order, and organized the technical backbone of the Department to meet for many times to study the feasibility of the trial production scheme and finalize the details of the scheme, so as to lay a solid foundation for the production of new brand products.
The successful trial production of the product further optimized the polypropylene product structure of Zhongke refining and Chemical Co., Ltd., met the diversified needs of the market, and honed the operation level of skilled personnel of the plant.