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[Chemical Knowledge]：Properties and Uses of Adhesives

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The nature and use
of adhesive in the field of chemical production raw materials
1. Introduction

adhesive is an important chemical production raw materials, widely used in various fields, such as construction, automotive, electronics, aviation and so on. Adhesives form a strong connection by adhering two or more substances, thus playing the role of connection, sealing, fixing, filling, etc. This article will detail the properties and uses of adhesives.

2. the properties of adhesives

1. Adhesion: The main property of adhesives is adhesion, that is, the ability to connect two substances closely together. The amount of adhesion depends on the composition of the adhesive, the preparation process and the conditions of use.
2. Viscosity: Viscosity is an indicator of the fluidity of the adhesive. The higher the viscosity, the worse the fluidity. The size of the viscosity has an important influence on the construction performance and use effect of the adhesive.
3. Curing speed: The curing speed refers to the time required for the adhesive to change from liquid to solid. The speed of curing depends on the composition of the adhesive and the conditions of use.
4. Weather resistance: Weather resistance refers to the durability of the adhesive in the natural environment, including UV resistance, oxidation resistance, hydrolysis resistance and other aspects of the performance.

3. adhesive use

1. construction field: in the construction field, adhesive is mainly used for ceramic tile, marble, glass and other building materials paste and sealing, as well as pipes, walls and other parts of the waterproof and plugging.
2. Automotive field: In the automotive field, adhesives are mainly used for the bonding and sealing of body sheet metal, glass, seats and other parts, as well as the realization of sound insulation and shock absorption.
3. Electronics: In the field of electronics, adhesives are mainly used for bonding and fixing electronic components, circuit boards and other components, as well as heat dissipation, dustproof and other functions.
4. Aviation: In the aviation field, adhesives are mainly used for bonding and sealing of aircraft structural parts, as well as the manufacture and repair of composite materials.

4. Adhesive Selection and Use Precautions

1. According to the type and nature of the sticky substance to choose the appropriate adhesive, for example, for the bonding of metal materials, should choose a high adhesion and corrosion resistance Adhesive.
2. When using adhesive, attention should be paid to the temperature and humidity of the construction environment, as well as the surface treatment and cleanliness of the sticky material to ensure the adhesion effect and service life of the adhesive.
3. In the bonding process, attention should be paid to control the amount of adhesive and coating uniformity, to avoid the occurrence of too thick or too thin adhesive layer, affecting the bonding effect.
4. In the adhesive curing process, attention should be paid to avoid external force, so as not to damage the bonding structure.

5. conclusion

adhesive as an important part in the field of chemical production raw materials, has a wide range of uses and good prospects for development. Understanding the nature and use of adhesives, as well as the correct selection and use of adhesives, is of great significance to improve product quality and production efficiency.

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