透明聚酰胺聚集态结构与拉伸性能的热处理效应
|
摘要
研究了透明聚酰胺PAPACM12和PAMACM12的基本性能以及热处理对透明聚酰胺聚集态结构和应力应变行为的影响,着重分析并对比了重复单元结构相近的透明聚酰胺在聚集态结构上的差别.示差扫描量热法(DSC)的结果表明,PAPACM12的玻璃化转变温度为135.6°C、熔点为244.6°C,PAMACM12的玻璃化转变温度为160°C.对比傅里叶变换红外光谱(FTIR)谱图的结果,PAPACM12在对应了酰胺基团变形振动的961 cm~(-1)结晶谱带与PAMACM12有明显差异.经过退火处理后,PAPACM12在一维广角X射线衍射(WAXD)曲线上出现了2个衍射峰,其晶面间距分别为0.50和0.45 nm,对应于聚酰胺的α晶型,这是冷结晶所致;PAMACM12经过热处理后仍为无定形状态.退火后处理后PAPACM12的拉伸强度得到了改善、断裂强度下降,这也是冷结晶过程中微晶含量不断增加所致,而PAMACM12的拉伸强度和断裂强度均有所下降.
The properties and thermal treatment effects on the microstructure and stress-strain behaviors of two transparent polyamides,poly(4,4′-aminocyclohexyl methylene dodecanedicarboxylamide(PAPACM12)and poly(3,3′-dimethyl-4,4′-aminocyclohexyl methylene dodecanedicarboxylamide(PAMACM12),were studied in this work.Differences in microstructure and the corresponding properties between the two polymers with similar repeating units were found out via comparative analyses.PAPACM12 behaved as a microcrystalline polymer with a distinct glass transition temperature of 135.6°C and a melting point at 244.6°C.By contrast,PAMACM12 showed a higher glass transition temperature of 160°C,as the elimination of thermal history reduced a lot its crystallinity.Besides,cold crystallization was observed for PAPACM12 during the heating process,which gave rise to an exothermic peak on the DSC curve at 174°C.Comparing the Fourier transform infrared spectroscopy(FTIR)spectra of two polyamides,the band of 961 as a crystalline indicator was found present for PAPACM12 but absent for PAMACM12.This observation was consistent with the DSC results obtained above.Further,thermal treatment effects on the aggregate structure and tensile properties were investigated.Experimental results showed that quenching treatment could reduce the yield strength and elongation at break for both samples.Besides,the cold crystallization of PAPACM12 after annealing let two diffraction peaks occur on the integrated pattern of wide-angle X-ray diffraction(WAXD),which corresponded to the d-spacings of 0.50 and 0.45 nm,respectively.These two values approximated to the ones for(100)and(010/110)lattices in the AABB-type polyamides.Moreover,the tensile strength of PAPACM12 increased while the fracture strength decreased after annealing,for cold crystallization process conduced to an improved microcrystalline formation.Differently,both tensile strength and fracture strength of PAMACM12 were decreased by annealing,but its optical transparency was barely affected.
The properties and thermal treatment effects on the microstructure and stress-strain behaviors of two transparent polyamides,poly(4,4′-aminocyclohexyl methylene dodecanedicarboxylamide(PAPACM12)and poly(3,3′-dimethyl-4,4′-aminocyclohexyl methylene dodecanedicarboxylamide(PAMACM12),were studied in this work.Differences in microstructure and the corresponding properties between the two polymers with similar repeating units were found out via comparative analyses.PAPACM12 behaved as a microcrystalline polymer with a distinct glass transition temperature of 135.6°C and a melting point at 244.6°C.By contrast,PAMACM12 showed a higher glass transition temperature of 160°C,as the elimination of thermal history reduced a lot its crystallinity.Besides,cold crystallization was observed for PAPACM12 during the heating process,which gave rise to an exothermic peak on the DSC curve at 174°C.Comparing the Fourier transform infrared spectroscopy(FTIR)spectra of two polyamides,the band of 961 as a crystalline indicator was found present for PAPACM12 but absent for PAMACM12.This observation was consistent with the DSC results obtained above.Further,thermal treatment effects on the aggregate structure and tensile properties were investigated.Experimental results showed that quenching treatment could reduce the yield strength and elongation at break for both samples.Besides,the cold crystallization of PAPACM12 after annealing let two diffraction peaks occur on the integrated pattern of wide-angle X-ray diffraction(WAXD),which corresponded to the d-spacings of 0.50 and 0.45 nm,respectively.These two values approximated to the ones for(100)and(010/110)lattices in the AABB-type polyamides.Moreover,the tensile strength of PAPACM12 increased while the fracture strength decreased after annealing,for cold crystallization process conduced to an improved microcrystalline formation.Differently,both tensile strength and fracture strength of PAMACM12 were decreased by annealing,but its optical transparency was barely affected.
引文
1Zhu Jianmin(朱建民).Polyamide Resin and Its Application(in Chinese)(聚酰胺树脂及其应用).Beijing(北京):Chemical Industry Press(化学工业出版社),2011.923-925
2Dynamit Nobel Aktiengesellschaft.US patent,US3962400.1976-06-08
3Arkema France,Audenaert M.OW patent,OW2008029070.2008-03-13
4Evonik Degussa GmBH.US patent,US7906063.2007-08-23
5Degussa A G.US patent,US7133209.2004-08-26
6Arkema F.US patent,US8211344.2011-02-10
7Arkema F.US patent,US20110135860.2011-01-09
8Qu Liangjun(曲良俊),Niu Mingjun(牛明军),Jiang Aiyun(蒋爱云),Li Xinfa(李新法),Chen Jinzhou(陈金周),Sun Junqing(孙俊卿),Sun Bo(孙博).China Plastics Industry(塑料工业),2003,31(SI):16-19
9Qu Liangjun(曲良俊),Niu Mingjun(牛明军),Jiang Aiyun(蒋爱云),Li Xinfa(李新法),Chen Jinzhou(陈金周),Sun Junqing(孙俊卿),Sun Bo(孙博).China Plastics Industry(塑料工业),2004,32(1):23-25
10Jiang Aiyun(蒋爱云),Zhao Lei(赵磊),Li Xinfa(李新法),Chen Jinzhou(陈金周),Niu Mingjun(牛明军).China Plastic(中国塑料),2012,26(2):20-22
11Zheng Yubin(郑玉斌),Li Lili(李丽丽).CN patent,CN106916296A.2017-07-04
12Yao Zhen(姚臻),Zhou Yadan(周亚单),Cao Kun(曹堃).Chemical Industry and Engineering Progress(化工进展),2014,33(12):3276-3282
13Cao Min(曹民),Xiao Zhongpeng(肖中鹏),Zhang Chuanhui(张传辉),Shi Zhenguo(史振国),Jiang Sujun(姜苏俊).New Chemical Materials(化工新型材料),2014,42(6):213-216
14Meng Q Y,Gu Y Z,Luo L,Wang S K,Li M,Zhang Z G.J Appl Polym Sci,2017:44832
15Lu S J,Zhou Z M,Yu J,Li F,He M.Polym-Plast Technol,2013,52(2):157-162
16Miyake A.J Appl Polym Sci,1960,44(143):223-232
17Dreyfuss P,Keller A.J Polym Sci,A2,1973,11(2):193-200
18Wang L L,Dong X,Huang M M,Wang D J.Polymer,2016,97:217-225
19Wang L L,Dong X,Huang M M,Alejandro J M,Wang D J.Polymer,2017,117:231-242
20Wang L L,Dong X,Huang M M,Alejandro J M,Wang D J.ACS Appl Mater Interfaces,2017,9(22):19238-19247
21Zhu P,Dong X,Cao Y Y,Wang L L,Liu X R,Wang Z F,Wang D J.Eur Polym J,2017,(93):334-346
22Zhu P,Dong X,Wang D J.Macromolecules,2017,50(10):3911-3921
23Wang Lili(王莉莉),Dong Xia(董侠),Zhu Ping(朱平),Zhang Xiuqin(张秀芹),Wang Dujin(王笃金).Acta Polymerica Sinica(高分子学报),2017,(5):752-760
24Wang L L,Dong X,Zhu P,Zhang X Q,Liu X R,Wang D J.Eur Polym J,2017,90:171-182
25Dong Jianting(董建廷),Hu Yimin(胡益民),Fan Zhongyong(范仲勇).Journal of Fudan University(Natural Science)(复旦学报(自然科学版)),2009,45(5):533-538
26Huang Y,Li W H,Yan D Y.Polym Bull,2002,49(2-3):111-118
27Igor K,Daniela M,RenéA.Polym Bull,2012,290(10):971-978
28Igor K,Daniela M,RenéA.Polym Bull,2014,71(3):581-593
29Xu J R,Ren X K,Yang T,Jiang X Q,Chang W Y,Yang S,Stroeks A,Chen E Q.Macromolecules,2018,51:137-155
30Gunaratne L M W K.Shanks R A.Eur Polym J,2005,41(12):2980-2988
31Lei Jun(雷军),Yang Shugui(杨书桂),Ru Jiafeng(茹佳峰),Li Zhongming(李忠明).Chinese Polymer Bulletin(高分子通报),2017,(10):1-12
32Gao Y Y,Dong X,Wang L L,Liu G M,Liu X G,Tuinea-Bobe C,Whiteside B,Coates P,Wang D J,Han C C.Polymer,2015,73:91-101
33Angelloz C,Fulchiron R,Douillard A,Chabert B,Fillit R,Vautrin A,David L.Macromolecules,2000,33:4138-4145
34Leute U,Dollbopf W,Liska E.Colloid Polym Sci,1978,256:914-922
2Dynamit Nobel Aktiengesellschaft.US patent,US3962400.1976-06-08
3Arkema France,Audenaert M.OW patent,OW2008029070.2008-03-13
4Evonik Degussa GmBH.US patent,US7906063.2007-08-23
5Degussa A G.US patent,US7133209.2004-08-26
6Arkema F.US patent,US8211344.2011-02-10
7Arkema F.US patent,US20110135860.2011-01-09
8Qu Liangjun(曲良俊),Niu Mingjun(牛明军),Jiang Aiyun(蒋爱云),Li Xinfa(李新法),Chen Jinzhou(陈金周),Sun Junqing(孙俊卿),Sun Bo(孙博).China Plastics Industry(塑料工业),2003,31(SI):16-19
9Qu Liangjun(曲良俊),Niu Mingjun(牛明军),Jiang Aiyun(蒋爱云),Li Xinfa(李新法),Chen Jinzhou(陈金周),Sun Junqing(孙俊卿),Sun Bo(孙博).China Plastics Industry(塑料工业),2004,32(1):23-25
10Jiang Aiyun(蒋爱云),Zhao Lei(赵磊),Li Xinfa(李新法),Chen Jinzhou(陈金周),Niu Mingjun(牛明军).China Plastic(中国塑料),2012,26(2):20-22
11Zheng Yubin(郑玉斌),Li Lili(李丽丽).CN patent,CN106916296A.2017-07-04
12Yao Zhen(姚臻),Zhou Yadan(周亚单),Cao Kun(曹堃).Chemical Industry and Engineering Progress(化工进展),2014,33(12):3276-3282
13Cao Min(曹民),Xiao Zhongpeng(肖中鹏),Zhang Chuanhui(张传辉),Shi Zhenguo(史振国),Jiang Sujun(姜苏俊).New Chemical Materials(化工新型材料),2014,42(6):213-216
14Meng Q Y,Gu Y Z,Luo L,Wang S K,Li M,Zhang Z G.J Appl Polym Sci,2017:44832
15Lu S J,Zhou Z M,Yu J,Li F,He M.Polym-Plast Technol,2013,52(2):157-162
16Miyake A.J Appl Polym Sci,1960,44(143):223-232
17Dreyfuss P,Keller A.J Polym Sci,A2,1973,11(2):193-200
18Wang L L,Dong X,Huang M M,Wang D J.Polymer,2016,97:217-225
19Wang L L,Dong X,Huang M M,Alejandro J M,Wang D J.Polymer,2017,117:231-242
20Wang L L,Dong X,Huang M M,Alejandro J M,Wang D J.ACS Appl Mater Interfaces,2017,9(22):19238-19247
21Zhu P,Dong X,Cao Y Y,Wang L L,Liu X R,Wang Z F,Wang D J.Eur Polym J,2017,(93):334-346
22Zhu P,Dong X,Wang D J.Macromolecules,2017,50(10):3911-3921
23Wang Lili(王莉莉),Dong Xia(董侠),Zhu Ping(朱平),Zhang Xiuqin(张秀芹),Wang Dujin(王笃金).Acta Polymerica Sinica(高分子学报),2017,(5):752-760
24Wang L L,Dong X,Zhu P,Zhang X Q,Liu X R,Wang D J.Eur Polym J,2017,90:171-182
25Dong Jianting(董建廷),Hu Yimin(胡益民),Fan Zhongyong(范仲勇).Journal of Fudan University(Natural Science)(复旦学报(自然科学版)),2009,45(5):533-538
26Huang Y,Li W H,Yan D Y.Polym Bull,2002,49(2-3):111-118
27Igor K,Daniela M,RenéA.Polym Bull,2012,290(10):971-978
28Igor K,Daniela M,RenéA.Polym Bull,2014,71(3):581-593
29Xu J R,Ren X K,Yang T,Jiang X Q,Chang W Y,Yang S,Stroeks A,Chen E Q.Macromolecules,2018,51:137-155
30Gunaratne L M W K.Shanks R A.Eur Polym J,2005,41(12):2980-2988
31Lei Jun(雷军),Yang Shugui(杨书桂),Ru Jiafeng(茹佳峰),Li Zhongming(李忠明).Chinese Polymer Bulletin(高分子通报),2017,(10):1-12
32Gao Y Y,Dong X,Wang L L,Liu G M,Liu X G,Tuinea-Bobe C,Whiteside B,Coates P,Wang D J,Han C C.Polymer,2015,73:91-101
33Angelloz C,Fulchiron R,Douillard A,Chabert B,Fillit R,Vautrin A,David L.Macromolecules,2000,33:4138-4145
34Leute U,Dollbopf W,Liska E.Colloid Polym Sci,1978,256:914-922