Do You Know How Sealants Are Produced?

1. Raw materials and selection of sealants

The main raw materials of sealants include base polymers, fillers, additives and solvents. Among them, the base polymer is the main body of the sealant, and the filler can increase the volume of the sealant and make it more durable and wear-resistant. Additives help improve the performance of the sealant, such as increasing its adhesion and heat resistance. Solvents are used to adjust the viscosity and fluidity of the sealant.

In terms of material selection, the raw materials of the sealant must meet national standards and environmental protection requirements. At the same time, different types of sealants can be selected according to different usage occasions and requirements.

2. Production process of sealants

The production process of sealants generally includes the following steps:

1. Pretreatment of base polymers: The base polymer is heated, stirred and filtered to meet certain quality requirements.

2. Processing of fillers: The fillers are processed by grinding, dispersing, screening and other processing, and added to the base polymer in a certain proportion.

3. Mixing of additives: Various additives are mixed and then added to the base polymer.

4. Addition of solvents: Solvents are added to the mixture to adjust the viscosity and fluidity of the sealant.

5. Mixing process: Mix the various materials processed above, and stir and mix them fully within a certain period of time.

6. Filtration, filling and filling: The mixed sealant is filtered, filled and filled, etc. to ensure the quality and stability of the sealant.

3. Sealant production equipment

The production equipment of sealant generally includes reactors, dispersers, ball mills, three-roll mirror machines, mixers, filters, fillers and filling machines.

The equipment and specifications required for different types of sealants will also be different, so manufacturers need to configure them according to their own production needs and market needs.

4. Common sealant quality control methods

Common sealant quality control methods include the following aspects:

1. Quality inspection of raw materials: All raw materials are inspected for appearance, chemical composition and physical properties.

2. Central control of the production process: Monitor and control each link in the production process to ensure the stability and controllability of the production process.

3. Finished product testing: Perform appearance inspection, chemical and physical property analysis and other tests on the produced sealants to ensure the quality and stability of the products.

5. Summary

The production process of sealants includes the selection of raw materials, process flow, production equipment and quality control. Manufacturers need to configure according to their own needs, and at the same time attach great importance to quality control to ensure the quality and stability of the final product and meet market demand.