How to choose a fluorescent brightener for PET masterbatch？
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- Unsolveddestoon
- 2021-08-16 15:13
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- 1Flooranonymity
- 2021-08-17 10:11
1.First of all, the most important thing is the selection of fluorescent whitening agent. PET is a kind of thermoplastic general engineering plastics and has high temperature resistance, so PET masterbatch should also have high temperature resistance. The brightening agent OB-1 has a melting point of about 350 degrees Celsius, is not easy to precipitate at high temperature, is resistant to migration, is small in addition, and has high whiteness.
2.The second is the purchase of fluorescent brighteners. Nowadays, there are few brightener manufacturers and many distributors. Many people think that the distributors sell them cheaply, so they choose to buy them from the distributors. But there must be a reason for cheapness. The price is cheap. The content of the brightener must be reduced, and the content of the brightener will increase, and the amount of use will increase, and the impurities will also increase. This will cause the performance of the fluorescent brightener to be unstable.
2.The second is the purchase of fluorescent brighteners. Nowadays, there are few brightener manufacturers and many distributors. Many people think that the distributors sell them cheaply, so they choose to buy them from the distributors. But there must be a reason for cheapness. The price is cheap. The content of the brightener must be reduced, and the content of the brightener will increase, and the amount of use will increase, and the impurities will also increase. This will cause the performance of the fluorescent brightener to be unstable.