Nonisothermal Crystallization Kinetics of ABS/PET/PETG Alloy†

doi:10.7503/cjcu20170832

Abstract

Abstract:

Acrylonitrile-butadiene-styrene(ABS)/polyethylene terephthalate(PET) alloy were compatibilized by polyethylene terephthalate-1,4-cyclohexanedimethanol(PETG). The effects of the amount of PETG on the mechanical properties were investigated. The nonisothermal crystallization kinetics of PET, ABS/PET and ABS/PET/PETG were studied via different scanning calorimeter(DSC). The Jeziorny method was employed to analyze the nonisothermal kinetics of alloys, and the corresponding kinetic parameters were obtained by calculation. The results showed that the impact strength and elongation at break were increased significantly along with the amount of PETG. But the tensile strength and flexural strength were slightly lower. The crystallinity decreased and the crystallization rate decreased slightly with the amount of PETG increased.

Key words: Nonisothermal crystallization, Differential scanning calorimetry, Composite material, Acrylonitrile-butadiene-styrene/polyethylene terephthalate, Polyethylene terephthalate-1, 4-cyclohexanedimethanol

CLC Number:

O631

TrendMD:

WANG Meilin, LIU Yudong, LIU Xiaoli, LI Zhiying, LIU Fengqi. Nonisothermal Crystallization Kinetics of ABS/PET/PETG Alloy^†[J]. Chem. J. Chinese Universities, 2018, 39(6): 1290.

Figures/Tables 8

References 19

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Sample	Izod impact strength/(kJ·m^-2)	Tensile strength/MPa	Extension at break(%)	Flexural strength/MPa
Ⅰ	2.0	44.8	5.5	73.5
Ⅱ	1.5	54.0	11.3	71.5
Ⅲ	2.6	53.2	14.8	70.2
Ⅳ	3.5	53.2	17.0	69.4
Ⅴ	5.0	52.6	21.8	67.8
Ⅳ	3.6	51.7	20.3	65.7
Ⅶ	2.5	51.6	11.3	64.4

Sample	Izod impact strength/(kJ·m^-2)	Tensile strength/MPa	Extension at break(%)	Flexural strength/MPa
Ⅰ	2.0	44.8	5.5	73.5
Ⅱ	1.5	54.0	11.3	71.5
Ⅲ	2.6	53.2	14.8	70.2
Ⅳ	3.5	53.2	17.0	69.4
Ⅴ	5.0	52.6	21.8	67.8
Ⅳ	3.6	51.7	20.3	65.7
Ⅶ	2.5	51.6	11.3	64.4

Sample	ϕ/(℃·min^-1)	T₀/℃	T_P/℃	t_1/2/min	ΔH/(J·g^-1)	X_c(%)
Ⅰ	5	216.21	209.80	2.06	36.26	28.92
	10	209.44	199.02	1.46	36.83	29.37
	20	200.08	186.05	0.90	31.71	25.29
	30	194.40	175.85	0.91	32.45	25.88
	40	190.66	168.10	0.76	23.71	18.91
Ⅱ	5	223.81	219.38	1.43	13.52	10.78
	10	217.82	212.37	0.98	14.97	11.94
	20	210.89	204.19	0.57	14.23	11.35
	30	205.83	198.42	0.49	14.83	11.83
	40	201.59	193.37	0.36	13.94	11.12
Ⅲ	5	223.98	220.65	1.30	15.91	12.69
	10	218.04	213.62	0.82	15.62	12.46
	20	210.94	205.28	0.49	15.44	12.31
	30	205.79	199.03	0.38	15.40	12.28
	40	201.68	194.10	0.40	16.08	12.82
Ⅳ	5	222.54	217.61	1.69	12.16	9.70
	10	216.38	209.68	0.93	11.71	9.34
	20	208.66	200.44	0.64	13.01	10.37
	30	202.97	193.84	0.50	13.04	10.40
	40	198.36	187.97	0.45	13.70	10.93
Ⅴ	5	219.13	213.03	1.69	11.90	9.49
	10	211.15	203.84	1.05	11.65	9.29
	20	202.53	192.90	0.73	12.93	10.31
	30	196.31	184.51	0.58	12.63	10.07
	40	191.76	177.65	0.57	13.71	10.93
Ⅵ	5	213.45	207.65	1.73	10.42	8.31
	10	204.88	197.12	1.29	11.71	9.34
	20	194.84	183.98	0.81	11.04	8.80
	30	187.20	173.80	0.69	10.59	8.44
	40	180.20	163.97	0.52	7.68	6.12

Sample	ϕ/(℃·min^-1)	T₀/℃	T_P/℃	t_1/2/min	ΔH/(J·g^-1)	X_c(%)
Ⅰ	5	216.21	209.80	2.06	36.26	28.92
	10	209.44	199.02	1.46	36.83	29.37
	20	200.08	186.05	0.90	31.71	25.29
	30	194.40	175.85	0.91	32.45	25.88
	40	190.66	168.10	0.76	23.71	18.91
Ⅱ	5	223.81	219.38	1.43	13.52	10.78
	10	217.82	212.37	0.98	14.97	11.94
	20	210.89	204.19	0.57	14.23	11.35
	30	205.83	198.42	0.49	14.83	11.83
	40	201.59	193.37	0.36	13.94	11.12
Ⅲ	5	223.98	220.65	1.30	15.91	12.69
	10	218.04	213.62	0.82	15.62	12.46
	20	210.94	205.28	0.49	15.44	12.31
	30	205.79	199.03	0.38	15.40	12.28
	40	201.68	194.10	0.40	16.08	12.82
Ⅳ	5	222.54	217.61	1.69	12.16	9.70
	10	216.38	209.68	0.93	11.71	9.34
	20	208.66	200.44	0.64	13.01	10.37
	30	202.97	193.84	0.50	13.04	10.40
	40	198.36	187.97	0.45	13.70	10.93
Ⅴ	5	219.13	213.03	1.69	11.90	9.49
	10	211.15	203.84	1.05	11.65	9.29
	20	202.53	192.90	0.73	12.93	10.31
	30	196.31	184.51	0.58	12.63	10.07
	40	191.76	177.65	0.57	13.71	10.93
Ⅵ	5	213.45	207.65	1.73	10.42	8.31
	10	204.88	197.12	1.29	11.71	9.34
	20	194.84	183.98	0.81	11.04	8.80
	30	187.20	173.80	0.69	10.59	8.44
	40	180.20	163.97	0.52	7.68	6.12

Sample	ϕ/(℃·min^-1)	n	K	K_c	Sample	ϕ/(℃·min^-1)	n	K	K_c
Ⅰ	5	3.339	0.042	0.530	Ⅳ	5	3.373	0.095	0.625
	10	3.389	0.164	0.835		10	3.145	0.782	0.976
	20	3.090	0.888	0.994		20	3.429	2.751	1.052
	30	2.914	1.089	1.003		30	3.159	7.469	1.069
	40	3.066	1.389	1.008		40	3.176	11.262	1.062
Ⅱ	5	2.852	0.342	0.807	Ⅴ	5	3.073	0.136	0.671
	10	3.146	1.034	1.003		10	3.332	0.458	0.925
	20	3.717	5.346	1.087		20	2.934	2.046	1.036
	30	3.932	12.526	1.088		30	3.799	3.799	1.045
	40	3.606	31.782	1.090		40	3.090	4.396	1.038
Ⅲ	5	3.488	1.281	1.051	Ⅵ	5	3.132	0.117	0.651
	10	4.161	1.110	1.010		10	3.148	0.364	0.904
	20	3.971	9.530	1.119		20	3.212	1.296	1.013
	30	3.831	25.646	1.114		30	3.227	1.976	1.023
	40	5.041	38.050	1.095		40	2.680	4.407	1.038