The Preparation and Property of Organic Solvent Lignin and PVC Composite Materials

Abstract

The organic solvent lignin in this paper was extracted from the scrap liquid of the reed ethanol pulping. The attained lignin was characterized by Scanning Electron Microscope（SEM）.On this basis，the lignin is blended with PVC and other auxiliaries, PVC/lignin composite material is prepared by pressure molding. The mechanical performance index of PVC/lignin composite material is detected and the impact fracture morphology of the PVC/lignin composite material is observed by SEM photograph. According to the research, it is indicted that the lignin and PVC has a certain degree of compatibility. The less dosage of lignin, the better compatibility lignin and PVC performances. With the increasing of dosage of lignin, the impact strength, tensile strength and bend strength of PVC/lignin composite material decrease. Compared with 5 phr PVC/lignin composite material, the dispersed phase diameter of the impact fracture morphology of 20 phr PVC/lignin composite material becomes bigger, and the uniformity of distribution becomes worse.

Preparation and Characterization of Novel PVC/Silica–Lignin Composites

“…Ping et al [28] reported that lignin and PVC have a certain degree of compatibility. The smaller the content of lignin, the better the compatibility of the lignin and PVC.…”

“…Production of PVC composites containing fillers from renewable materials, including natural plant fibers such as jute, bamboo, sisal, and rice straw [16][17][18][19], as well as wood fiber and lignin [20][21][22][23][24][25][26][27][28][29], leads to materials with advantageous properties that may be successfully used as construction materials as well as in the automotive and furniture industries.…”

Lignin Modification for Enhanced Performance of Polymer Composites

“…267 The polyacrylate treatment reduces the rheological properties of the PVC and lignin blend, but it improves the mechanical qualities, particularly toughness, and the maximum impact strength is 37.7% higher than that for pure PVC. 268 Ping et al, 269…”

Design of Sustainable Materials by Cross-linking a Biobased Epoxide with Keratin and Lignin

“…Also, lignin has shown to be a suitable material for composite formulation. 28 It has been used as an additive for synthetic polymers like polypropylene 29 and polyvinyl chloride 30 and for rubber composites. 31 The main epoxy resin used in combination with lignin has been until now the DGEBA.…”

“…Also, lignin has shown to be a suitable material for composite formulation . It has been used as an additive for synthetic polymers like polypropylene and polyvinyl chloride and for rubber composites . The main epoxy resin used in combination with lignin has been until now the DGEBA. , Zhang et al reacted different types of lignin (e.g., raw lignin, demethylated lignin, phenolated lignin, and hydroxymethylated lignin) with epichlorohydrin in order to develop new chemical grouting materials as replacements for petroleum-based epoxy precursors.…”