Reinforcement of Natural Rubber Latex Film by Starch Nanocrystal

Gao, Yang; Zhao, Sen; Liao, Shaowei; Lin, Fang; Wang, Zhi Fen; Li, Le Fan

doi:10.4028/www.scientific.net/amm.543-547.3886

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…The size of raw starch particle was around 5-35 µm. However, after acidolysis, the size reduced to nano scale, between 50-80 nm 14 . As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Preparation of the SNC/NR master batch: Cassava starch (300 g) were mixed with 3 L of 3.16 M H2SO4 for 5 days at 40 ºC and were put on a thermostat water bath with a continuous stirring speed of 100 rpm. The suspension was washed by successive centrifugations with distilled water until neutrality, SNC was prepared 14 . SNC and NR latex were mixed and the contents of starch were 0, 5, 10, 15, 20 and 25 parts per hundred rubber (phr), respectively.…”

Section: Asian Journal Of Chemistry; Vol 26 No 17 (2014) 5513-5516mentioning

confidence: 99%

See 1 more Smart Citation

Effect of Starch Nanocrystal on the Properties of Carbon Black-Natural Rubber Composites

Gao¹,

Fang²,

Li³

et al. 2014

Asian J. Chem.

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With excellent comprehensive performance, natural rubber (NR) was widely used in the tyre industry [1][2][3] . In general, the reinforcing agents such as carbon black (CB)and silicon need to be added into the NR for strengthening the mechanical properties to meet the application requirements. Even if CB is one of the most widely employed reinforcing agents 4 , however, CB is derived from petroleum resources usually accompanied with serious environmental pollution. In addition, despite the silicon will not contaminate products, practical limitations arising from the potential safety issues resulting from electrostatic charge accumulation. Besides, kaolin and silicate are often used to fill in NR. Unfortunately, the reinforcing isworse than that enhanced by CB 5,6 . In recent years, as the growing depletion of oil resources and the improvement on environmental protection consciousness, people try to take advantage of starch, with the characteristics of abundance, renewability and biodegradability, to replace the CB 7,8 .However, the size of the starch particles is too big to disperse well in the rubber matrix. Thus, the large size limits to prepare higher performance starch/natural rubber composites. While, Goodyear tyre and Rubber Company addressed this issue by using maize SNC as rubber reinforces filler to

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“…The size of raw starch particle was around 5-35 µm. However, after acidolysis, the size reduced to nano scale, between 50-80 nm 14 . As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Section: Asian Journal Of Chemistry; Vol 26 No 17 (2014) 5513-5516mentioning

confidence: 99%

Effect of Starch Nanocrystal on the Properties of Carbon Black-Natural Rubber Composites

Gao¹,

Fang²,

Li³

et al. 2014

Asian J. Chem.

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show abstract

“…SNC obtained from acid hydrolysis of native starch has been incorporated into different polymer matrices for enhancement of mechanical properties, solvent absorption, thermal properties and barrier properties [14]. Indeed, SNC had proved to be an effective nanofiller for enhancement of mechanical properties due to the ability of SNC to form three-dimensional networks and excellent filler-matrix interactions [14][15][16][17]. Nevertheless, previous works of literature have suggested the negative effect of filler on shape memory behaviour of SMPs [18][19].…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Starch Nanocrystals on Mechanical and Shape Memory Behaviour of Smart Rubber

Yi Wei Tan,

Ai Bao Chai,

Kim Yeow Tshai

et al. 2024

IJNeaM

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Shape memory rubber (SMR) is a type of smart rubber that can undergo reversible changes when exposed to external stimuli such as temperature, solvent, pH, light, magnetic field and oxidation. Lightly crosslinked rubber demonstrated shape memory behaviour without any initial heat treatment. However, the strength of lightly crosslinked natural rubber latex (NRL) film cured by sulphur is relatively low. With the concept of sustainability in mind, the idea of fabricating green smart material for continuous development has motivated researchers to explore the realms of sustainable materials. This research aims to investigate the mechanical behaviour of starch nanocrystals (SNC) reinforced rubber composite films. To this end, the emphasis is laid on evaluating the effectiveness of SNC on shape memory effect (SME) of rubber nanocomposite films. In the current work, up to 8 wt% of SNC synthesized by acid hydrolysis was incorporated into NRL and the mixture was cast to form rubber nanocomposite films. SNC effectively increased the modulus and energy-storing potential of the rubber nanocomposite films. Moreover, the shape memory behaviour of the rubber nanocomposite films improved significantly with SNC content, leading to increased shape fixity (Sf) and full shape recovery (Sr).

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“…Wu et al used a novel dispersion technique to mix starch paste uniformly in rubber latex, directly co‐coagulating the mixture. Hélène and Gao produced starch nanocrystals by acidolysis, and then characterized NR composites containing these nanocrystals. Kahar et al prepared the HDPE/NR/TPS blends by melt blending the high density polyethylene/natural rubber and the silanized thermoplastic cassava starch.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Physical Properties of Porous Starch/Natural Rubber Composites

Jie

Pan

et al. 2018

Starch Stärke

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Porous starch is modified by the addition of dodecenyl succinate anhydride (DDSA), to decrease the self-aggregation, and then blended with natural rubber (NR) latex to obtain the modified starch/NR composites. The composites are found to have improved properties compared with the corresponding pure NR. Results of a thermal analysis show that the thermal degradation reaction of modified starch/NR composites is a two-step reaction, with the initial (T 0 ) and the final (T f ) temperatures of main reaction being increased, and glass transition temperature (T g ) slightly reduced compared with the corresponding pure NR. The curves of elastic modulus (G 0 ) and loss factor (tanδ) versus the strain of unvulcanized rubber compounds are obtained using a rubber process analyzer. Dynamic mechanical thermal analysis shows that the rolling resistance of the composites is improved by the addition of modified starch.

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Reinforcement of Natural Rubber Latex Film by Starch Nanocrystal

Cited by 3 publications

References 18 publications

Effect of Starch Nanocrystal on the Properties of Carbon Black-Natural Rubber Composites

Effect of Starch Nanocrystal on the Properties of Carbon Black-Natural Rubber Composites

Effectiveness of Starch Nanocrystals on Mechanical and Shape Memory Behaviour of Smart Rubber

Preparation and Physical Properties of Porous Starch/Natural Rubber Composites

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