In powder production methods, there are currently wet granulation, dry granulation, melting granulation, pre-dispersion granulation.The pre - dispersed masterbatch product has dispersibility and fluidity.The dispersibility of chemical additives in masterbatch directly affects the stability of mechanical properties of vulcanized products.At present, the rheological test instruments include rotary rheometer, torque rheometer, drop-ball viscometer and double-barrel capillary rheometer. In terms of pre-dispersed master batch performance and research methods, in addition to the traditional vulcanized rubber performance test, there are also crosslinked density test and dynamic mechanical performance test.
According to Shenyang Sunnyjoint,, some western developed countries have attached great importance to environmental protection and production automation control since very early, and they have relatively perfect industrial system and technical support.In the rubber granulation, these countries as early as the 80's to complete the industrialization, domestic relatively started late, is in the late 90's.Just mentioned in terms of industrialization and automation degree, some enterprises of western developed countries than domestic far some, in addition, in terms of products of industrial foreign product is to the complex, multi-functional product structure in research and development and production, and the current domestic product or single granulation, and lacking in terms of product features comprehensive distribution, but in nearly 10 years of industry development, due to some enterprises with foreign capital in the form of joint venture factory in China, to promote the development of the industry.At present, the biggest problem in this industry is that the product price is high, but the cost performance is not high, which is related to the domestic enterprises to promote the masterbatch high performance in this point of insufficient understanding, in addition, we should establish as soon as possible to evaluate the scientific method of pre-dispersed masterbatch.
This year, rubber pre-dispersed masterbatch has developed relevant industry standards, to support the healthy development of related industries.