The present invention discloses a regenerated HIPS/PPO alloy material based on chemical and physical co-modification, which is mainly composed of the following components in parts by mass: waste HIPS 60-70, PPO 30-40, HIPS-based macromolecular chain extender 2-8, elastomer toughening agent 2-10, oxazoline chain extender 0.2-1, and chain-extension catalyst 0.1-0.4. The alloy material uses chemical modification of in-situ chain extension and compatibilization of the macromolecular chain extender to restore a molecular chain structure, improve a phase interface and increase compatibility of the alloy. Through physical modification introduced by adding the elastomer toughening agent, a combined effect of chemical modification and physical modification is exploited, with target properties improved, a regenerated plastic alloy material with an excellent comprehensive property prepared, and the waste fully utilized to achieve energy saving and emission reduction. A method for preparing the above-described alloy material is also disclosed.

Process for manufacturing a biodegradable compound, said process comprising the steps of, in order: (i) providing an extruder with at least one rotating screw, at least two feeding units suitable for being fed with ingredients, and an extruder die, (ii) feeding the first feeding unit with a PHA polymer and maleic anhydride (MA), (iii) feeding the second feeding unit with cellulosic fibres, (iv) rotating the screw to mix the PHA and maleic anhydride ingredients and graft said maleic anhydride onto said PHA molecules to form PHA grafted with MA (PHA-g-MA) in an amount of 1 to 10%, preferably 1 to 3% of the total content of PHA, and then mixing said PHA-g-MA with cellulosic fibres to form a molten compound of PHA-g-MA and cellulosic fibres, (v) passing said molten compound through said extruder die and shaping said extruded compound into different compound formats.

A resin composition is provided, comprising a vinyl group-containing resin and a prepolymer. The prepolymer is made from a mixture by a prepolymerization reaction, and the mixture comprises a compound represented by Formula (1) and a compound represented by Formula (2). Also, an article made from the resin composition is provided, comprising a prepreg, a resin film, a laminate or printed circuit board.

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The present disclosure is related to a polymeric membrane, comprising a modified surface obtained from coating with hydrophilic monomers and curing the hydrophilic monomers with actinic irradiation, preferably UV light, wherein the hydrophilic monomers comprise at least one amino moiety; at least one polyoxyalkylene unit; and at least one (meth)acrylate moiety.