In this golden October, we celebrate the birthday of our great nation—National Day. On this day, the national flag waves high, lights shine bright, and the entire country is immersed in a festive atmosphere. National Day is not only an important holiday but also a moment for every Chinese person to express their deep feelings for the motherland. Looking back to October 1, 1949, the founding of New China mark
在现代工业中，增塑剂是用于提高材料柔韧性和加工性能的重要添加剂。然而，传统的增塑剂通常含有对环境和人类健康有害的成分。因此，寻求环保高效的增塑剂已成为当前的研究重点。在这种趋势下，环保型聚酯固体增塑剂，通过合成
Identifying the quality of polyethylene wax is crucial for industries such as plastics, rubber, and coatings. High-quality polyethylene wax not only enhances product performance but also increases market competitiveness. Here are some methods and criteria for determining the quality of polyethylene wax. 1. Observing Appearance High-quality polyethylene wax is typically pure white or slightly yellow, with a smooth
