Category: Knowledge

Sulfur, a common mineral in nature, has very important medicinal value.But in the eyes of rubber people, sulfur may have a more important use than medicine – rubber products in the vulcanizing agent.The origin of sulphur and rubber goes back to Charles Goodyear, the “father of rubber”. Rubber’s historical association with sulfur As an ancient […]

1. Melting point concept Melting point is the physical property of a substance. In physical principle, melting point is the temperature at which a solid changes its state from solid state (melting) to liquid state, usually denoted by Tm. In most cases the melting point of an object is the freezing point. There are two factors […]

Four factors to consider when choosing accelerator 1. Use of promoters Each accelerator has its own characteristics, in order to meet the rubber in the process of operation has good technological performance and vulcanized rubber has excellent physical and chemical properties, can be used several, each other learn from each other. Rubber properties because of the […]

Nowadays, there are more and more plasticizers, which makes many plastic products companies that are new to the industry do not know how to choose when choosing plasticizers. Let me introduce to you what to pay attention to when choosing plasticizers: 1. Compatibility between plasticizer and resin. Generally, the additive has good compatibility with the […]

1. Compatibility between plasticizer and resin. Generally, the additive has good compatibility with the resin: it can make the auxiliary agent store the apricot in the product for a long time, stably and evenly, and effectively exert its function. Function, if the compatibility is not good, it is prone to “sweating” or “blooming” phenomenon, but […]

1.Dithiocarbamate ZBEC-2 years, ZDBC-2 years, ZDEC-2 years, ZDMC-2 years, ZDiBC-2 years, ZPDC-2 years, TDEC-1 years, BiDMC-1 years, PX-2 years, CDMC-1 years 2.THIURAM TMTM—2 years, TMTD—2 years, DPTT—2 years, TETD—1 year, TIBTD—1 year, TBzTD—1 year, TIBTM—1 year, DDTS-1 year, TBTD-1 year 3.Thiourea ETU—1 year, DETU—1 year, DBTU—1 year, DPTU—1 year 4.Thiazole ZMBT-2 years, M-year, DM-2 years, […]

The general situation of the rubber auxiliaries industry As a kind of chemical material added in the process of rubber processing to improve the properties of rubber products, the development of rubber additives is closely related to the development of the rubber industry, especially the tire manufacturing industry.In 1839, the American Goodyear discovered that sulfur […]

TMTM is a yellow powder that is non-toxic and tasteless. This product is a super-accelerator that does not change color and is not polluted. It is mainly used for natural rubber and synthetic rubber. TMTD is white or off-white, with a special odor, crystalline powder. TMTD has the following uses: (1) Used as a super accelerator for […]

Sulfur, peroxide, quinone oxime, resin, metal oxide and other vulcanization systems can be used according to the requirements of rubber and rubber products.Among them, sulfur sulfide system is divided into ordinary sulfide system, effective sulfide system and semi-effective sulfide system.Sulfur curing system in general synthetic rubber and half use the more general synthetic rubber, metal […]

1. Environmental protection.Avoid dust pollution in the workshop and protect workers’ health. 2. Good dispersion and uniformity. 3, good compatibility with the rubber, can save mixing time. 4, easy to weigh, suitable for automatic continuous line, easy to transport and storage. 5. There is no loss in the processing process, so that the quality between […]

At present, physicochemical and biochemical treatment methods are still the main research direction of accelerant wastewater, and are also the main wastewater treatment technology adopted by accelerant enterprises at home and abroad. 1 physicochemical treatment Physicochemical treatment methods mainly include extraction, distillation and evaporation, coagulation, air floatation, adsorption, etc.These technologies are mainly in the laboratory […]

1.Concept Rubber additives refer to a series of fine chemical products added in the process of processing natural rubber or synthetic rubber into rubber products, which are used to give rubber products the performance, guarantee the service life of rubber products and improve the processing performance of rubber materials. Rubber is a very important material […]

Rubber additives products in addition to melting point, heating, weight reduction, ash, sieving residues testing projects, there are some often encountered testing projects, downstream customers or rubber additives industry needs to pay attention to, in line with the original intention of serving the rubber industry, we will continue to collect and share with you. 1. At […]

In 2018, the total output of rubber additives was 1.172 million tons In 2018, the total production of rubber additives was 1.172 million tons, up 2.8 percent year-on-year. 1.Output of accelerator was 357000 tons The annual output of promoters reached 357000 tons in 2018, up 7.2% year on year, mainly due to the continuous improvement […]

Three factors to consider when choosing accelerator 1. Vulcanization flatness Accelerator should make the rubber during the most suitable vulcanization period has a wide vulcanization flat curve, in other words, the performance of vulcanized rubber during this time should not show significant changes, which is particularly important for thick and solid rubber products. Rubber is a […]

Rubber additives originated in the 19th century natural rubber vulcanization. Rubber additives is an important auxiliary raw material, the rubber industry is in rubber processing into superior elasticity and the use of performance in the process of rubber or latex products, must add a series of the floorboard of the fine chemical products, including promoting […]

1. Origin of Rubber Accelerator In 1881, Thomas Rowley discovered that ammonia can accelerate rubber vulcanization, but the patent for aniline as a vulcanization accelerator was obtained by WaOstwald in 1908. As early as 1887, Hofmann successfully synthesized aminothiophenol by using benzene and organic acids, and named it as a mercapto compound (2-mercaptoaniline). Bedford (Bedford) […]

The production of antioxidant RD usually uses aniline and acetone as raw materials and hydrochloric acid as a catalyst. The finished product is obtained through unit operations such as salt formation, polycondensation, neutralization, distillation, granulation and packaging. At present, the main methods for the production of antioxidants RD at home and abroad are “one-step” process and […]