01. Cyclic anhydride type (MAH)
Cyclic anhydride-type reactive compatibilizers are the most commonly used class of reactive compatibilizers at present. Among them, maleic anhydride grafted to polyolefin compatibilizer is the main, and its grafting rate is generally 0.8%-1.0%, which is mainly used in the modification of polyolefin plastics. Maleic anhydride grafted to PS or PS-based copolymerization reactive compatibilizers can be applied to PA/PC, ABS/GF, PA/ABS modification, blending or alloying. The general dosage is 5%-8%.
02. Carboxylic acid type
The representative product of the carboxylic acid group is an acrylic type compatibilizer. Acrylic acid is usually grafted onto a polyolefin resin and is used for much the same purpose as the maleic anhydride type.
03. Epoxy type
Epoxy reactive compatibilizers are made by grafting and copolymerizing epoxy resins or compounds with epoxy groups with other polymers. This type of reactive compatibilizer can have a good compatibility effect.
04. Oxazoliline type
PS, that is, RPS, grafted with oxazoline, is a relatively important compatibilizer with a grafting rate of 1%, characterized by a wide range of applications, not only can react with general polymers containing amino or carboxyl groups, but also react with carbonyl groups, anhydrides, and epoxy groups to form graft copolymers. Therefore, it can be used in PS and a variety of engineering plastics or modified polyolefin resins. In addition, it can be "in-place" compatible for direct use in plastic modifications, blends and alloys.
05. Imide type
The imide type is a modified polyacrylate, which is mainly suitable for engineering plastic alloys or blends such as PA/PO, PC/PO, PA/PC.
06. Isocyanate type
The composition is m-isopropenyl-2,2-dimethylbenzoylisocyanate. It can be used for engineering plastic alloys containing amino and carboxyl groups.
07. Low molecular weight type
Low-molecular-weight compatibilizers are reactive compatibilizers that use reactive monomers and low-molecular-weight polymers, including some organic and inorganic compounds that can be compatible with one component of plastic synthesis and react, cross-link or bond with another component to form plastic alloys. In this way, not only the process of manufacturing plastic alloys is simplified, but also the raw materials are easy to obtain and the cost is lower. However, the requirements for extruders are high, and the use of compounding extruders is an important key to the production of low molecular compatibilizers.