Preparation of waterborne graphene/polyurethane absorbing coating by polymerization method and its performance research

1、 Preparation process

Preparation of water-based materialsGraphene/polyurethane absorbing coatingIt can be mainly divided into the following steps:

1. Preparation of graphene/polyurethane composite materials: Firstly, it is necessary to use methods such as melt blending, liquid blending, or in-situ polymerization to composite graphene with polyurethane. Among these methods, in-situ polymerization is widely used because it can establish strong interactions between graphene and polymers, such as polar bonds, hydrogen bonds, and even covalent bonds.

2. Preparation of absorbing coating: Mix the prepared graphene/polyurethane composite material with an appropriate amount of polyurethane resin, and then stir the mixture evenly with the help of a mixer. The stirring time and speed need to be controlled well to ensure the uniform distribution of graphene in polyurethane.

3. Preparation of coated fabric: Apply the prepared coating evenly onto the selected base fabric, and then place the coated fabric in a high-temperature blower box for drying to complete the coating preparation.

2、 Performance research

A series of performance studies are needed to evaluate the performance of the prepared water-based graphene/polyurethane absorbing coating.

1. Antistatic properties: The addition of graphene can significantly improve the antistatic properties of composite coatings, due to its excellent conductivity.

2. Mechanical properties: The addition of graphene can also improve the mechanical properties of composite coatings, such as tensile strength, hardness, etc. This is because graphene has excellent mechanical properties, such as high strength, high hardness, etc.

3. High temperature resistance: The addition of graphene can improve the high temperature resistance of composite coatings due to its excellent thermal stability.

4. Water resistance and acid alkali resistance: The addition of graphene can improve the water resistance and acid alkali resistance of composite coatings, due to the excellent chemical stability of graphene.

In summary, water-based graphene/polyurethane absorbing coatings prepared by polymerization method have excellent anti-static properties, mechanical properties, high temperature resistance, water resistance, and acid and alkali resistance. These excellent properties enable the coating toAbsorberThe field has broad application prospects.