Comparison of Precipitated Calcium Carbonate/Polylactic Acid and Halloysite/Polylactic Acid Nanocomposites

Table 1

Composition and crystallization properties of PLA composites.

Code	Composition				Isothermal crystallization			Thermal properties of PLA composites
							(min)	(°C)	(°C)	(J/g)	(°C)	(°C)	(J/g)
PHC 1	PLA	HNT	PCC	100/0/0	2.298	−3.791	37.7	61.8	109.9	25.56	148.2	156.0	30.69
PHC 2	PLA	HNT	PCC	95/5/0	2.476	−3.831	31.2	62.1	103.8	25.62	146.9	155.0	27.94
PHC 3	PLA	HNT	PCC	90/0/10	2.234	−3.199	25.5	60.3	96.9	25.03	145.9	155.8	29.31
PHC 4	PLA	HNT	PCC	90/5/5	1.808	−2.184	12.4	57.9	98.4	27.41	146.8	156.7	30.68
PHC 5	PLA	HNT	PCC	85/5/10	2.656	−3.985	29.1	57.8	100.1	27.79	146.5	156.2	29.91
PHC 6	PLA	HNT	PCC	80/5/15	2.180	−3.357	20.3	58.9	99.0	25.65	145.7	156.2	30.83
PHC 7	PLA	HNT	PCC	75/5/20	2.339	−3.295	23.3	58.4	99.0	27.93	146.3	156.4	33.17
PHC 8	PLA	HNT	PCC	70/5/25	2.937	−4.062	21.9	58.7	97.6	19.34	145.6	155.5	32.91

The enthalpy of cold crystallization and melting is corrected according to the content of PLA in the composites.