Preparation and characterization of tung oil-rosin-based polyester internal sizing agent
Source abstract
Abstract
Abstract A series of tung oil-rosin-based polyester (TRP) used as internal sizing agents were prepared using rosin, tung oil, maleic anhydride, and glycerol. TRP structure and properties were examined using Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and gel permeation chromatography (GPC). The TRP latexes were subsequently used as internal sizing agents, and the sizing properties were evaluated using a scanning electron microscope (SEM), a video-based dynamic contact angle measuring device and a Cobb absorbency tester. The optimal conditions for preparing the TRP sizing agent were as follows: the hydroxy-carboxyl ratio of the material was 0.25; the maleic anhydride dosage was 20 % of rosin; and the tung oil dosage was 40 % of rosin. Under the best conditions, the sized paper Cobb-60 was 15.6 \text{g}/{\text{m}2}, the tensile index was 45.1 N·m/g, the burst index was 3.1 kPa·{\text{m}2}/g, and the tear index was 15.6 mN·{\text{m}2}/g.
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Research context
OpenAlex topics: biodegradable polymer synthesis and properties · Synthesis and properties of polymers · Silicone and Siloxane Chemistry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
326781 Institute of Chemical Industry of Forest Products , CAF, National Engineering Lab for Biomass Chemical Utilization, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab of Biomass Energy and Material , Nanjing , Jiangsu , China
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources , Nanjing Forestry University , Nanjing , Jiangsu , China
Funding
National Key Research and Development Program of China
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