Study on properties and mechanism of asphalt modified with nano⁃calcium carbonate/waste polyethylene composite

doi:10.19491/j.issn.1001-9278.2023.10.012

Abstract

Abstract:

To further modify the high cost and technical defects of asphalt separately modified with nano⁃calcium carbonate （nano⁃CaCO₃） and waste polyethylene （WPE）， the nano⁃CaCO₃/TTS/WPE composite modifier （CTW） and CTW⁃modified asphalt were prepared through melt extrusion using isopropyl triisostearyl phthalate （TTS） as a coupling agent. The influence of TTS content on the properties of CTW⁃modified asphalt was studied， and the modification mechanism was analyzed. The analysis of conventional indexes indicated that the softening point， elongation， and viscosity of the CTW⁃modified asphalt increased at first and then kept stable with an increase in the TTS content. However， the penetration degree exhibited an opposite change. According the investigation on the dynamic shear rheology and low temperature properties， a certain amount of TTS was conducive to improving the high⁃ and low⁃temperature properties of the CTW⁃modified asphalt. Meanwhile， microtopography and mechanism analysis was carried out for the above⁃mentioned changes in the properties， and the results indicated that the physical and chemical interactions between different contents of TTS and nano⁃CaCO₃/WPE/asphalt led to the performance changes of the CTW⁃modified asphalt.

Key words: nano?calcium carbonate, isopropyl triisostearoyltitanate, waste polyethylene, asphalt, property, mechanism

CLC Number:

TQ325.1⁺2

YANG Xiying, ZHANG Wencai, ZHAO Zhixin. Study on properties and mechanism of asphalt modified with nano⁃calcium carbonate/waste polyethylene composite[J]. China Plastics, 2023, 37(10): 85-92.

Figures/Tables 8

Fig.1. The appearance and shape of main raw materials

Fig.2. The effect of TTS content on softening point and penetration of CTW modified asphalt

Fig.3. The effect of TTS content on elongation and viscosity of CTW modified asphalt

Fig.4. The effect of TTS content on rheological behavior of CTW modified asphalt

Fig.5. The effect of TTS content on low temperature performance of CTW modified asphalt

Fig.6. FTIR of CTW modified asphalt with different TTS content

Fig.7. The action mechanism between WPE/nano⁃CaCO3/TTS/asphalt raw materials

Fig.8. The effect of TTS content on microtopographies of CTW modified asphalt

References 21

1	崔平.纳米碳酸钙/二氧化钛与SBS复合改性沥青流变性能研究［J］.中外公路，2021，41（5）：292⁃295.
2	路勇，李华峰.纳米碳酸钙用量对改性沥青性能指标的影响研究［J］.运输经理世界，2021（1）：135⁃136.
3	孙培，张楠，王霁，等.纳米碳酸钙改性沥青混合料路用性能研究［J］.黑龙江工业学院学报（综合版），2022，22（6）：41⁃46.
	SUN P， ZHANG N， WANG J， et al. Study on the pavement performance of nano⁃CaCO₃ modified asphalt mixture［J］.Journal of Heilongjiang University of Technology，2022，22（6）：41⁃46.
4	PLASTICSEUROPE， Plastics ⁃the Facts 2021.An analysis of Europeanplastics production，demand and waste data ［R］. Brussels： Plastics Europe， 2021.
5	CLAY BOSWELL. Shifting capex could yield full circularity.Chemical week［EB/OL］.（2022）［2022⁃04⁃01］..
6	PLASTICSEUROPE， Plastics⁃the Facts 2019. An analysis of European plastics producti⁃on，demand and waste data ［R］. Brussels： Plastics Europe， 2019.
7	CHEN W⁃T， JIN K， WANG N⁃H L. The use of supercritical water for the liquefaction of polypropylene into oil［J］.ACS Sustainable Chemistry and Engineering， 2019，7（4）：3 749⁃3 758.
8	孙锴.废塑料催化热解制备芳香烃的研究［D］.杭州：浙江大学，2021.
9	NOOR Z. H.， IBRAHIM K.， MADZALAN N.， et al. Rheological properties of polyethylene and polypropylene modifified bitumen［J］. International Journal of Civil and Environmental Engineering，2010，4（12）：96⁃100.
10	FANG C Q， ZHANG M Y， YU R E， et al. Effect of preparation temperature on the aging properties of waste polyethylene modifified asphalt［J］. Journal of Materials Science & Technology，2015， 31 （3）：320⁃324.
11	张文才，郝晓刚，李萍，等.聚乙烯接枝马来酸酐含量对废旧聚乙烯改性沥青性能的影响［J］.中国塑料，2022，36（6）：24⁃31.
	ZHANG W C， HAO X G， LI P， et al. Effect of maleic⁃anhydride⁃grafted polyethylene content on performance of recycled polyethylene⁃modified asphalt［J］. China Plastics， 2022，36（6）：24⁃31.
12	杨锡武.生活废弃塑料改性沥青技术及工程应用［M］.北京：科学出版社，2016：194⁃213.
13	王洪宇，隋国鑫.文冠果壳纤维/高密度聚乙烯复合材料的力学性能［J］.科技导报，2014，32（9）：21⁃25.
	WANG H Y， SUI G X. Mechanical properties of xanthoceras sorbifolia husk fibers/high density polyethylene composites［J］. Science & Technology Review， 2014， 32（9）： 21⁃25.
14	HAN G， LEI Y， WU Q， et al. Bamboo⁃fiber filled high density polyethylene composites： effect of coupling treatment and nanoclay［J］. Journal of Polymers and the Environment， 2008， 16（2）： 123⁃130．
15	交通运输部.公路工程沥青及沥青混合料试验规程：Standard test methods of bitumen and bituminous mixtures for highway engineering：JTG E20⁃2011［M］.北京：人民交通出版社，2011.
16	KAKAR M R， MIKHAILENKO P， PIAO Z， et al. Analysis of waste polyethylene （PE） and its by⁃products in asphalt binder［J］. Construction and Building Materials，2021， 280：122492.
17	马峰，张超，傅珍.纳米碳酸钙改性沥青的DSC分析［J］.郑州大学学报（工学版），2006（4）：49⁃52.
	MA F， ZHANG C， FU Z. DSC study of nano⁃CaCO₃ modified asphalt［J］. Journal of Zhengzhou University（Engineering Science），2006（4）：49⁃52.
18	Zhang Haiyan， Wu Xiaowei， Cao Dongwei， et al. Effect of linear low density⁃polyethylene grafted with maleic anhydride（LLDPE⁃g⁃MAH）on properties of high density⁃polyethylene/styrene butadiene/styrene–butadiene–styrene（HDPE/SBS）modified asphalt［J］. Construction and Building Materials，2013，47：192⁃198.
19	杨锡武.生活废弃塑料改性沥青技术及工程应用［Ｍ］.北京：科学出版社，2016：96.
20	陈辉强，郝培文.钛酸酯偶联剂对沥青阻燃剂表面改性的研究［J］.武汉理工大学学报，2009，31（17）：66⁃69.
	CHEN H Q， HAO P W. Research on the surface modification of fire retardant asphalt with titanate coupling agent. ［J］.Journal of Wuhan University of Technology，2009，31（17）：66⁃69.
21	MASSONJ F， PELLETIER L， COLLINS P. Rapid FTIR method for quantification of styrene⁃butadiene type copolymers in bitumen［J］Journal of Applied Polymer Science，2001，79：1 034⁃1 041.

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