Surface modification of PCC with guar gum using organic titanium ionic crosslinking agent and its application as papermaking filler.
Utilized the principles of guar gum (GG) gelation and crosslinking, a novel modified precipitated calcium carbonate (MPCC) papermaking filler was prepared by using organic titanium (OT) ionic crosslinking agent. The MPCC was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). FTIR results confirmed that GG had been coated on the surface of PCC particles, XPS analysis indicated the presence of titanium atoms on MPCC particles, and SEM and XRD results showed that the modification treatment did change the surface morphology and crystal structure of PCC particles. The handsheet testing results showed that the strength properties of handsheets were obviously improved when using MPCC as papermaking filler, and the optimum preparation conditions of MPCC were obtained. This research suggests that the GG modified PCC by using OT as crosslinking agent can be used to manufacture high filler content paper products.
Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China; Chemical Engineering and Resource Utilization College, Wuzhou College, Wuzhou 543002, China.
Wei
W
Xie
Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China.
Zhanqian
Z
Song
Chemical Engineering and Resource Utilization College, Wuzhou College, Wuzhou 543002, China.
Zhenhua
Z
Liu
Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China. Electronic address: qianxueren@126.com.
Xueren
X
Qian
D002119:Calcium Carbonate / Q000737:chemistry*; D011232:Chemical Precipitation; D005685:Galactans / Q000737:chemistry*; D008351:Mannans / Q000737:chemistry*; D010209:Paper; D053149:Plant Gums / Q000737:chemistry*; D013499:Surface Properties; D013718:Tensile Strength; D014025:Titanium / Q000737:chemistry*
D005685:Galactans; D008351:Mannans; D053149:Plant Gums; D014025:Titanium; C007894:guar gum; D002119:Calcium Carbonate
Crosslinking agent; Filler modification; Guar gum (GG); Organic titanium (OT); Precipitated calcium carbonate (PCC); Strength improvement