Classification and selection of PVC modifiers

PVC modifiers are used as modifiers for glassy amorphous PVC according to their functions and modification characteristics, and can be divided into:
① Impact modifiers: used in opaque impact-resistant mixtures.
②Transparent impact modifier: This modifier is used when optical properties and impact resistance are required.
③Heat deformation modifier: used to improve the processing temperature range of PVC mixture.
④ Ordinary modifiers: used to improve impact resistance, high temperature strength and low temperature flexibility.
⑤Weather resistance modifier: This kind of modifier can be used in outdoor applications to prevent ultraviolet photodegradation.
⑥Processing aids: Improve the melt performance of PVC by reducing the melting time.

Enhanced flow modifier—DP300 is a functional additive for plasticized soft and semi-soft PVC products. Its characteristics: improve the processing performance of PVC products, good plasticizing performance and fluidity of PVC; adjustable The uniformity of foaming cells reduces the generation of foaming holes and perforations; improves the tensile strength, tensile strength and tear strength of PVC products; it can increase the amount of filler used.

MDNR)-4OPVC is a kind of amphiphilic hyperbranched polymer, which can be used in PVC products to improve the scratch resistance and stain resistance of the surface of PVC products, and has antistatic properties. MDNR-40PVC will not migrate or precipitate in PVC materials, and has no effect on painting, printing, electroplating, etc. MDNR-4OPVC is suitable for transparent PVC materials, which can improve the scratch resistance and touch resistance of the material surface, and can also improve the transparency and brightness of PVC.

SP-1800 hyperdispersant is a kind of PVC soft and hard PVC special-shaped material, PVC pipe, PVC electrical pipe, PVC sheet, PVC floor leather, PVC wire and cable, PVC artificial leather, PVC sheet, PVC wall paper, PVC shoe material, etc. Products designed for products. SP-1800 hyperdispersant simplifies the formula and processing technology of PVC products. In PVC products, it is necessary to choose the type of calcium carbonate (light calcium carbonate and heavy calcium carbonate), as well as the fineness and whiteness of calcium carbonate. , without considering the influence of PVC processing instability and color difference changes caused by calcium carbonate production enterprises choosing different coupling agents and treatment methods. SP-1800 improves the mechanical properties of PVC products, and can also increase the filling amount of inorganic powder.