Analysis of variance of injection moulding process parameters and clay particles size effects on impact strength, shrinkage and warpage of polyethylene/kaolin clay composites

Journal of Engineering and Applied Science

Table 3 Shrinkage, warpage and impact strength of HDPE/KC composites with different clay sizes for each trial, which were obtained experimentally

Clay particle size (μm)	Parameters A:B:C	Shrinkage	STD	Warpage (mm)	STD	Impact strength (kJ/m²)	STD
< 75	180:6:1	0.021	0.003	0.06	0.01	14.09	3.3
	180:8:2	0.014	0.001	0.04	0.00	13.70	1.5
	180:10:3	0.022	0.001	0.05	0.01	15.69	2.3
	200:6:2	0.032	0.001	0.06	0.03	16.20	2.1
	200:8:3	0.023	0.003	0.07	0.00	13.67	2.3
	200:10:1	0.032	0.005	0.04	0.00	15.23	3.8
	220:6:3	0.032	0.004	0.04	0.00	16.64	1.2
	220:8:1	0.032	0.003	0.04	0.00	21.51	8.8
	220:10:2	0.035	0.001	0.06	0.03	19.05	3.8
75–106	180:6:1	0.050	0.002	0.03	0.02	12.34	0.8
	180:8:2	0.042	0.001	0.04	0.00	12.54	0.9
	180:10:3	0.053	0.003	0.04	0.00	11.37	1.2
	200:6:2	0.061	0.001	0.07	0.00	12.42	0.9
	200:8:3	0.056	0.002	0.05	0.01	13.62	3.5
	200:10:1	0.067	0.004	0.07	0.00	12.50	1.2
	220:6:3	0.059	0.003	0.06	0.01	17.05	1.7
	220:8:1	0.070	0.004	0.06	0.01	16.66	1.7
	220:10:2	0.057	0.001	0.02	0.04	23.15	2.3
106–150	180:6:1	0.051	0.001	0.05	0.01	12.24	2.3
	180:8:2	0.041	0.001	0.04	0.00	15.80	2.7
	180:10:3	0.053	0.003	0.11	0.07	12.00	0.8
	200:6:2	0.063	0.001	0.05	0.01	15.67	1.9
	200:8:3	0.055	0.003	0.05	0.01	14.47	1.6
	200:10:1	0.063	0.004	0.07	0.03	16.01	2.4
	220:6:3	0.056	0.001	0.08	0.03	17.74	4.2
	220:8:1	0.063	0.001	0.06	0.01	14.50	3.2
	220:10:2	0.062	0.003	0.06	0.01	16.19	0.3