1. Chemical Composition and Structural Characteristics - UCWAX 340 is an (EAA). The molecular chain of this copolymer consists of ethylene units and EAA units. The ethylene units provide the basic polymer backbone, endowing it with certain flexibility and toughness. The EAA units carry active functional groups such as carboxyl groups, and these functional groups can react with other substances through interactions like hydrogen bonds, thereby enhancing the adhesion to various substrates. 2. Performance Advantages** - **Demoulding Performance**: - It has highly efficient demoulding properties. During molding processes such as injection molding, it can form a lubricating film between the mold and the plastic product, reducing the adhesion between the product and the mold. For example, during the injection molding process of PA (polyamide), UCWAX 340 can make the molded PA products easier to be ejected from the mold, reducing the defect rate and improving production efficiency. - Compatibility Promotion**: - It plays a very good role in promoting the compatibility of the system, especially in dealing with the problem of "floating fibers". In fiber-reinforced engineering plastics, the fibers tend to "float" on the surface of the matrix, affecting the appearance and performance of the products. UCWAX 340 can improve the interfacial compatibility between the fibers and the matrix, making the fibers better wrapped by the matrix, thus reducing the phenomenon of "floating fibers". For example, in glass fiber-reinforced PBT (polybutylene terephthalate), adding UCWAX 340 can make the glass fibers evenly distributed in the PBT matrix. - Surface Gloss Enhancement: - It can significantly improve the surface gloss of the products. During the processing of engineering plastics, it can fill the tiny pits on the surface of the products, making the surface smoother. Taking POM (polyoxymethylene) as an example, after adding UCWAX 340, the surface gloss of POM products is significantly improved, making their appearance more attractive and more in line with some application scenarios with high requirements for appearance quality. - Enhanced Pigment Dispersion: - UCWAX 340 exhibits excellent performance in the preparation of masterbatches and the dispersion of pigments in engineering plastics. It can adsorb on the surface of pigment particles, reducing the mutual attraction between pigment particles, enabling the pigments to be evenly dispersed in the plastic matrix. In the production of masterbatches, it can ensure the even distribution of pigments, improving the quality of masterbatches. During the processing of engineering plastics containing pigments such as PA, PBT, POM, etc., it also helps to evenly disperse the pigments, thus obtaining plastic products with uniform colors. 3. Typical Application Areas - Masterbatch Dispersion: - It is an important additive in the production of masterbatches. It can help various pigments (such as organic pigments, inorganic pigments) to be evenly dispersed in the carrier resin, ensuring the color uniformity and stability of the masterbatches. By improving the dispersion of pigments, it can also reduce the phenomenon of pigment agglomeration, improving the coloring power and covering power of the masterbatches. - **Engineering Plastic Applications**: - It is widely used in engineering plastics such as PA, PBT, POM. In the injection molding modification of PA, it can not only improve the surface gloss but also improve the demoulding and dispersion properties; in the processing of PBT, it can solve the problem of floating fibers and improve the comprehensive performance of the products; in POM, it is mainly used to improve the surface gloss and pigment dispersion, etc., making these engineering plastics better meet the requirements of different industrial fields for the performance and appearance of plastic products.
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