Mechanical properties and morphology of coal gasification fine slag glass bead‐filled acrylonitrile–butadiene–styrene (ABS) composites

Abstract

Coal gasification fine slag glass beads (CGFSGBs) were processed via an efficient pneumatic separation technique. CGFSGB products (CGFSGB-S1, CGFSGB-S2, and CGFSGB-S3) with different sizes were acquired. The heavy calcium carbonate (CaCO 3 ) was used as comparative filler. Effects of particle size and geometric shape on mechanical strengths, flow properties, and solid density of filled acrylonitrile-butadiene-styrene (ABS) were investigated. The mechanical strengths of composites decreased with increasing CGFSGB weight fraction, while MFR and solid density increased. The mechanical strengths were found to increase with decreasing CGFSGB size, and spherical surface of the CGFSGB is more beneficial to improve interface adhesion strength than square surface of the CaCO 3 . The flow property analysis showed that the ABS/CaCO 3 composites have better fluidity and the advantages in the processing energy consumption. However, the incorporation of CaCO 3 resulted in the higher solid-state density. In summary, CGFSGBs have the potential to replace CaCO 3 in the ABS market.

High‐value application of glass beads/porous carbon obtained from coal gasification fine slag as alternative for carbon black in natural rubber composite

“…Generally, fillers with a larger surface area have a larger contact area with the matrix, leading to a better interface bonding. [ 11 ] The larger pore capacity can absorb some vulcanization accelerators during the processing of rubber, resulting in a slowdown of the vulcanization speed of the rubber compounds. [ 10 ] As shown in Table 3, the specific surface area of CB was 39.673 m 2 g −1 .…”

“…Research has been conducted to prepare valuable products from the CGFS. [6,[9][10][11][12][13] However, studies on the use of unburned carbon in CGFS to replace CB in rubber are rare.…”

Mechanical activation of coal gasification fine slag and mechanical and thermal properties of coal gasification fine slag–poly(vinyl chloride) composites

“…With the increasingly strict quality requirements within the coal chemical industry and the 'dual carbon' target, [12] the utilization of CGFS has become one of the most important factors limiting developments within the coal chemical industry. At present, the more common uses of gasification slag are related to the production of adsorbents [13][14][15], construction materials [16][17][18], soil improvement [19][20][21], and the production of PVC composite materials using the CGFS as a filler (applications for tubes, sheets, profiles, etc) [22][23][24]. Considering both its technical feasibility and economic viability, the production of composite materials represents a more efficient and higher-quality utilization of CGFS.…”

Assessment on combustion performance and bottom ash properties of carbon‐rich fraction from coal gasification fine slag co‐combustion with corn straw char

“…At present, the resource utilization of coal gasification fine slag is mostly focused on soil improvement, 5 adsorption materials, [6][7][8][9] catalyst carrier, 10 cement feed or additives, [11][12][13] and so on. Miao et al prepared a new laminated porous composite material from gasification slag by chemical activation and hydrothermal treatment, with a regeneration efficiency of over 98% in CO 2 absorption.…”