This invention relates to the field of
polymer composite materials technology, specifically providing a long-lasting antistatic ABS material and its manufacturing method. By weight, the material comprises the following raw materials: 100 parts ABS resin, 3-5 parts antistatic modifier, 1 part UV stabilizer, 1.5 parts
polymer auxiliary conductive filler, and 0.2 parts
antioxidant; wherein the antistatic modifier is a PEG-b-PS diblock
copolymer. This invention achieves physical entanglement and permanent anchoring of molecular chains through the good compatibility between the PS segment of the PEG-b-PS block
copolymer and the ABS matrix, while simultaneously utilizing the microphase separation of its PEG segments to construct hydrophilic conductive channels within the matrix; combined with the electronic conductive network of the auxiliary conductive filler, a dual "
ion-
electron" synergistic conductive mechanism is formed. This material possesses long-lasting, migration-resistant, abrasion-resistant, and aging-resistant antistatic properties, while causing minimal damage to the mechanical properties of the ABS matrix, maintaining high appearance, and achieving a
surface resistivity of up to 10 Ω·cm. 9 -10 11 Ω / □, especially suitable for high-end
cleanroom scenarios such as
photomask protective film boxes.