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[Chemical Knowledge]：What are the upstream raw materials for low pressure film? What do the downstream products contain?

Read： 894 Time：19months ago Source：Transform the World with Simplicity

In the field of chemical production raw materials, low pressure membrane is an important filtration and separation equipment, which is widely used in various chemical processes. The upstream and downstream related products of low pressure membrane mainly include the following categories:

upstream products:

1. Polymer materials: The main raw materials of low pressure membrane are polymers, such as polysulfone, polyethersulfone, polyacrylonitrile, etc. These polymer materials have excellent chemical resistance, thermal stability and mechanical strength, and are suitable for the manufacture of low-pressure films.
2. Additives: In order to improve the performance of low-pressure films, some additives are usually added, such as antioxidants, anti-ultraviolet agents, hydrophilic agents, etc. These additives can improve the properties of the membrane such as weatherability, stain resistance and water flux.

Downstream products:

1. Filtration equipment: Low-pressure membrane can be used as a core component in various filtration equipment, such as reverse osmosis systems, nanofiltration systems, ultrafiltration systems, etc. These devices use the filtration and separation of low-pressure membranes to achieve effective removal of impurities in liquids or gases.
2. chemical products: low pressure membrane filtration technology can be applied to a variety of chemical production, such as food, medicine, environmental protection and other fields. Through the filtration and separation of low pressure membrane, chemical products can be purified, impurities can be removed, and the quality and purity of products can be improved.

Specifically, the following are some upstream and downstream products related to low-pressure membranes:

Upstream products:

1. Polysulfone (PSU): A thermoplastic engineering plastic that can maintain excellent performance under high temperature and high pressure. It has excellent mechanical properties, chemical resistance and heat resistance, and can be used to make low-pressure membranes.
2. Polyethersulfone (PES): A transparent amorphous thermoplastic polymer with high mechanical strength, chemical resistance and heat resistance, suitable for the manufacture of low-pressure films.

downstream products:

1. Reverse osmosis system: a water treatment equipment using low-pressure membrane filtration technology, which can effectively remove dissolved salts, colloids, organic matter and other impurities in water, and is widely used in seawater desalination, pure water preparation and other fields.
2. nanofiltration system: a filtration technology between reverse osmosis and ultrafiltration, which can use low pressure membrane to selectively separate different molecular weight substances in solution, and can be used in water treatment, food, medicine and other fields.

In short, low-pressure membrane has a wide range of application prospects in the field of chemical production raw materials, and its upstream and downstream related products cover a variety of filtration equipment and chemical products.

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