On the smoothing treatment of polyethylene terephthalate-1,4-cyclohexanedimethanol ester by ethyl acetate
There is a skill now, which is related to the smoothing treatment of ethyl acetate (Ethyl Acetate) and polyethylene terephthalate-1,4-cyclohexanedimethanol ester (PETG). For PETG, the material is tough and has good transparency, but its surface may have a rough state, which affects the appearance and practicality.

Ethyl acetate, an organic solvent, is also active. It is used for PETG smoothing, because it can moderately swell the surface of PETG. When ethyl acetate comes into contact with PETG, its molecules penetrate into the PETG polymer chain, enhancing the activity of the chain segment.

During operation, the conditions need to be carefully controlled. If the amount of ethyl acetate is too small, it is difficult to fully act on the surface of the PETG, and the smoothing effect is not good; if the amount is too large, it may be over-eroded, causing deformation and even damage to the PETG. Temperature is also the key. If the temperature is too high, ethyl acetate evaporates too quickly, and the reaction is difficult to fully proceed. If the temperature is too low, the molecular movement slows down, the swelling process is slow, and the efficiency is low.

Furthermore, the processing time also needs to be accurately calibrated. If the time is too short, the smoothing is insufficient; if the time is too long After the smoothing treatment of PETG by ethyl acetate under suitable conditions, PETG products with smooth surface and excellent texture can be obtained. In many fields, such as handicraft production, electronic product shell, etc., it has the effect of significantly improving quality. It is an important means of material surface treatment.