The difference between temperature vulcanization and normal temperature vulcanization

In the chemical industry, vulcanization technology is widely used in the processing of a variety of materials, especially in the fields of rubber, plastics and synthetic fibers. With the development of technology, temperature vulcanization and room temperature vulcanization, as two common vulcanization processes, have attracted wide attention because of their different characteristics and applications. In this paper, from the reaction conditions, process characteristics, application areas, etc., a detailed analysis of temperature vulcanization and normal, analysis of their differences and their practical application.

1. reaction conditions are different

One of the main differences between warm vulcanization and normal temperature vulcanization is the reaction temperature. Warm vulcanization usually means that the vulcanization reaction is carried out at a relatively high temperature (e. g., 200-300 ° C.), while room temperature vulcanization means that the reaction is carried out at room temperature (room temperature, about 20-25 ° C.). Temperature vulcanization requires higher energy input and usually requires dedicated equipment and energy support, while normal temperature vulcanization can use existing equipment and energy, and the operation is simpler.

2. process characteristics of different

1. reaction speed Due to the high reaction temperature, the reaction speed is usually faster, and the vulcanization reaction can be completed in a relatively short time. However, due to the lower reaction temperature and the slower reaction speed, the room temperature vulcanization requires a longer reaction time to complete the same reaction.

2. Product properties Warm vulcanization is carried out at high temperature, which can better promote the complete combination of reactants and reduce the generation of intermediate products. For example, in rubber vulcanization, warm vulcanization can promote the lateral addition reaction and generate more double bonds, thereby improving the performance of the rubber. Due to the low reaction temperature, room temperature vulcanization is easy to form side reactions, which may lead to the accumulation of intermediate products and affect the quality of the final product.

3. Equipment Requirements Temperature vulcanization requires higher temperature equipment, usually requires the use of rotary kilns, contact chambers and other large equipment, equipment investment is higher. The room temperature vulcanization can use a simple mixer or mixing equipment, equipment investment is low, and easy to maintain.

3. Application Areas Differences

1. rubber vulcanization Warm vulcanization has significant advantages in rubber vulcanization, which can improve the softness and wear resistance of rubber. Although room temperature vulcanization can also be used for rubber vulcanization, because the reaction temperature is low, it is easy to cause the instability of the rubber molecular structure and affect the vulcanization effect.

2. plastic vulcanization In plastic vulcanization, warm vulcanization can promote the polymerization reaction of plastic materials and improve the performance of plastics. Room temperature vulcanization requires the addition of a catalyst or the use of specific equipment to achieve a similar effect.

, advantages and disadvantages comparison

5. Considerations

In practical applications, the choice of temperature vulcanization or room temperature vulcanization needs to be considered comprehensively according to specific needs. If the reaction speed is fast and the product quality is high, temperature vulcanization is a better choice; if the equipment investment is limited and the reaction temperature is not high, room temperature vulcanization is more appropriate.

6. future development trend

With the enhancement of environmental awareness and technological progress, more environmentally friendly catalysts and optimized reaction conditions may appear in the future, making room temperature vulcanization play a greater role in some fields. Warm vulcanization is also likely to continue to dominate in demanding applications through more efficient designs and lower energy consumption.

There are significant differences between temperature vulcanization and room temperature vulcanization in reaction conditions, process characteristics and application fields. Understanding these differences can help to choose the right process to meet different production needs and improve product quality and production efficiency.