Toughening Modification of Acrylonitrile-butadiene Rubber/Ceric Sulfate Composites Crosslinked by Coordinate Bonds

doi:10.11901/1005.3093.2017.297

Chinese Journal of Materials Research

2018, Vol. 32

Issue (2): 136-141 DOI: 10.11901/1005.3093.2017.297

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Toughening Modification of Acrylonitrile-butadiene Rubber/Ceric Sulfate Composites Crosslinked by Coordinate Bonds

Qian ZHUO^1,², Wenqing YANG^1,², Changlin CAO^1,², Rongguo CHEN^1,², Qingrong QIAN^1,², Qinghua CHEN^1,²(

)

1 Institute of Minnan Science and Technology, College of Environmental Science and Engineering, Fujian Normal University, Quanzhou 362332, China
2 Quangang Petrochemical Research Institute of Fujian Normal University, Quanzhou 362801, China

Cite this article:

Qian ZHUO, Wenqing YANG, Changlin CAO, Rongguo CHEN, Qingrong QIAN, Qinghua CHEN. Toughening Modification of Acrylonitrile-butadiene Rubber/Ceric Sulfate Composites Crosslinked by Coordinate Bonds. Chinese Journal of Materials Research, 2018, 32(2): 136-141.

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Abstract

The acrylonitrile-butadiene rubber/ ceric sulfate (NBR/Ce(SO₄)₂·4H₂O) composites materials were toughened with poly(propy1ene carbonate) (PPC). And the structure and properties of NBR/PPC/Ce(SO₄)₂·4H₂O composites materials were investigated by differential scanning calorimetry, thermogravimetric analysis, equilibrium swelling method, scanning electron microscopy, curing performance test and mechanical property. The results show that Ce(SO₄)₂·4H₂O mainly serves as coordination crosslinking agent, compatibilizer and reinforcing filler, while PPC mainly plays the role of toughening agent.

Key words: composite coordination crosslinking toughening modification NBR PPC cerium sulfate

Received: 04 May 2017

ZTFLH:

TQ330

Fund: Supported by the Special Foundation for State Major Basic Research Program of China (No. 2016YFB0302302), the Special Foundation for Quangang Petrochemical Research Institute of Fujian Normal University of China (No. 2015YJY04)

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	Qian ZHUO
	Wenqing YANG
	Changlin CAO
	Rongguo CHEN
	Qingrong QIAN
	Qinghua CHEN

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https://www.cjmr.org/EN/10.11901/1005.3093.2017.297 OR https://www.cjmr.org/EN/Y2018/V32/I2/136

Fig.1 Rheometric curves at 160℃ of NBR/PPC/Ce(SO₄)₂4H₂O blends (a) Torque curves, (b) Tan curves

Fig.2 Strain sweep curves for NBR/PPC/Ce(SO₄)₂4H₂O blends at 160℃

Fig.3 Relationship obtained at 160℃ between storage modulus (G') and frequency (ω) (a), loss modulus (G'') and ω (b) for NBR/PPC/Ce(SO₄)₂4H₂O blends

Fig.4 Temperature dependence of storage modulus (a) and tanδ (b) for NBR/PPC/Ce(SO₄)₂4H₂O

Fig.5 DSC curves of crosslinked NBR/PPC/Ce(SO₄)₂4H₂O blends a-NBR; b-NBR/Ce (SO₄)₂4H₂O; c-NBR/PPC; d-NBR/PPC/Ce(SO₄)₂4H₂O; e-PPC

Fig.6 Swelling index of coordinated NBR/PPC/Ce(SO₄)₂-4H₂O

Fig.7 TG and DTG curves of coordinated NBR/PPC/Ce(SO₄)₂4H₂O blends a-100/0/10; b-90/10/10; c-70/30/10; d-0/100/10

Fig.8 Max of asymmetry of NBR/PPC/Ce(SO₄)₂4H₂O when curing at 160℃

Fig.9 The SEM micrographs of coordinated NBR/PPC/Ce(SO₄)₂4H₂O with different PPC content (a) 0 g PPC; (b) 10 g PPC; (c) 20 g PPC

Table 1 Physical properties of vulcanizated NBR/PPC/Ce (SO₄)₂4H₂O blends

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