With the development of social economy and the progress of science and technology, plastic products have been widely used in daily life. However, traditional plastic products often have many problems, such as easy to aging, easy to break, easy to pollute and so on. To solve these, people began to study new plastic additives to improve the performance of plastic products and reduce environmental pollution. As a commonly used plastic additive, PPA has unique physical and chemical properties and a wide range of applications, so it has received more and more attention.

Physicochemical properties of PPA

1. Molecular structure: The molecular structure of PPA contains a large amount of antelope group (-COOH), which makes it have good water solubility and hydrophilicity. In addition, PPA also has certain ionic properties and can form stable complexes with cationic surfactants.

2. Melting point and glass transition temperature: the melting point of PPA is about 270-285C, and the glass transition temperature is about 160-190C. These properties allow PPA to maintain stable performance at high temperatures and are suitable for applications where high temperature stability is required.

3. Rheology :PPA has good rheological properties and can adjust the flow performance within a certain range. This gives PPA a certain advantage in the preparation of high-performance polymer materials.

4. Chemical resistance :PPA has good chemical resistance and can maintain stable performance in harsh environments such as acid, alkali and salt. This gives PPA a certain advantage in the preparation of corrosion resistant materials.

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