Safety knowledge of polyurethane composites

Polyurethane composite material is a combination of polyol, foaming agent, catalyst and various additives in an optimized ratio of Zui. Polyurethane composite is suitable for spray preparation. Cold storage and other high-temperature insulation facilities are directly applied to on-site foaming. It has good fluidity of raw liquid, uniform foam cell, high strength, good dimensional stability and low thermal conductivity.

Polyurethane compound safety and protection:

 

1. After using the polyurethane compound, you must wear rubber gloves, anti-eyepieces and protective clothing, and frequently change gloves. The working environment must be well ventilated. The equipment should be inspected regularly, kept clean, and the operation should be completed immediately.

 

2. The combined polyether has slight toxicity due to the presence of low concentrations of additives such as catalysts in the polyurethane composition.

 

3, contact with the skin, must be thoroughly rinsed with soap and water, such as tingling still exists, should seek medical treatment immediately.

 

4, contact with the eyes, apply water for at least 15 minutes, and then seek medical attention immediately.


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Antigen extraction cells refer to a class of cells that can take up, process antigens and present antigen information to T lymphocytes, also known as helper cells. In the process of thymus-dependent antigen inducing B lymphocytes to produce antibodies, not only the synergistic effect of T and B lymphocytes is required, but also the assistance of another type of cells, so this type of cells is called helper cells. It plays an important role in the body's immune recognition, immune response and immune regulation.





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