The analysis of rubber chemicals in rubber products has important practical significance.As the rubber products added more types of additives, large differences in the amount of addition, part of the assists have reacts, so the full analysis of rubber additives is a There is a higher degree of difficulty.Through medium pressure chromatography, infrared spectroscopy qualitative method, identification of ethylene-propylene rubber
In the production of rubber products, the use of calendering machine or extruder preformed in a variety of shapes, different sizes of the process, called the molding. Forming methods are: Rolling is suitable for the manufacture of simple sheet, plate products. It is the compound by pressing the press pressed into a certain shape, a certain size of the film
With the development of society, the use of dispersants has also been more and more attention. The effect of the dispersant is to reduce the time and energy required to complete the dispersion process using a wetting and dispersing agent, to stabilize the dispersed pigment dispersion, to modify the surface properties of the pigment particles, and to adjust the movement
General plasticizer migration refers to the plastic products in the plasticizer to volatile, oozing, dissolution, etc. to migrate to the surface of the product, with the contact with the media or released into the environment. Which is involved in the plasticizer from the product to the air, the migration to contact with solid or liquid medium, and plasticizer compatibility and
Rubber additive composition analysis is based on the commission to provide materials, comprehensive utilization of qualitative and quantitative analysis means, one thousandth of the accuracy of accurate analysis of various components of the material composition, element content and filler content. The rubber and plastic raw materials and products through a variety of separation technology, the use of high-tech analytical instruments
Although rubber additives have many types, but the added ways are mostly the same, and there are two main ways: One is the impact of dosing: the general is to reverse osmosis pressure to 0.3Mpa below, the use of drugs should be completed in 2-4 hours. The reason why this will be used, mainly due to the surface of the
Deodorant is a chemical agent used to eliminate, reduce or cover the odor, according to the use of different can be divided into many types, can effectively reduce or eliminate the rubber additives and rubber itself residual monomer caused by the smell or odor, especially Suitable for some use of secondary re-processing of rubber products. Rubber deodorant has excellent temperature
Rubber processing aids known as the “MSG” in rubber and plastics industry,and today’s market on a wide range of rubber and plastic products, and all of its processing aids the quality and performance. However, the current development of domestic rubber processing aids still have the following problems: (1) The production process waste serious pollution. (2) Additives production intermediates, raw materials
1.Additives product structure and variety structure is irrational, uneven quality. For example, in order to meet the requirements of high temperature, fast and efficient rubber processing technology, a large amount of efficient sulfonamide accelerators have been used abroad (the amount of which has reached 55% of the total market of accelerators), easy to prepare, low-tech thiazole accelerators The proportion has
The main raw materials of rubber products are raw rubber, various compounding agents, as well as fiber and metal materials as skeleton materials. The basic production process of rubber products includes plasticizing, kneading, rolling, pressing, forming and vulcanizing six basic processes. The process of rubber processing is mainly to solve the plastic and elastic contradictions in the process, through a
