Lignin as a dry bonding system component in EPDM /microcrystalline cellulose composites

2021 ◽  
pp. 51616
Author(s):  
Heba Kandil ◽  
Ahmed M. Youssef ◽  
Doaa E. El Nashar
Keyword(s):  
Microcrystalline Cellulose ◽  
System Component ◽  
Bonding System ◽  
Cellulose Composites

scholarly journals The Rape Pomace and Microcrystalline Cellulose Composites Made by Press Processing

2020 ◽  
Vol 12 (4) ◽  
pp. 1311 ◽  
Author(s):  
Tomasz Żelaziński ◽  
Jacek Słoma ◽  
Jacek Skudlarski ◽  
Adam Ekielski
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Microcrystalline Cellulose ◽  
Heating System ◽  
Rapeseed Meal ◽  
Thermomechanical Properties ◽  
Process Temperature ◽  
Stress Tests ◽  
Cellulose Composites ◽  
Scanning Electron

This paper presents the results of research on biocomposites resulting from the combination of post-extraction rapeseed meal (RP) and microcrystalline cellulose (MCC). The products were fabricated using a press machine with a mould heating system. The biocomposites were then subjected to stress tests, their surface wettability was determined and color analyses were conducted. Fourier Transform Infrared Spectroscopy (FTIR), a cross-section observed by scanning electron microscope (SEM) and thermogravimetric analysis (TGA) were used to examine the structure and thermomechanical properties of the material obtained. The research results showed that an increase in the share of MCC to 8% and increasing the process temperature to 140 °C improved the strength parameters of the products obtained, as well as their thermal resistance. It was also found that the wettability of products was affected both by process temperature and addition of cellulose; similar wettability results were obtained for MCC 8% (120 °C) and MCC 2% (140 °C). Photographs taken using a scanning electron microscope revealed that the biocomposite surface was the smoothest in the case of materials fabricated under the highest process temperature and with the highest MCC proportion.

NATURAL RUBBER/MICROCRYSTALLINE CELLULOSE COMPOSITES WITH EPOXIDIZED NATURAL RUBBER AS COMPATIBILIZER

2019 ◽  
Vol 92 (2) ◽  
pp. 378-387 ◽  
Author(s):  
Kumarjyoti Roy ◽  
Subhas Chandra Debnath ◽  
Aphiwat Pongwisuthiruchte ◽  
Pranut Potiyaraj
Keyword(s):  
Natural Rubber ◽  
Microcrystalline Cellulose ◽  
Interfacial Interaction ◽  
Probable Mechanism ◽  
Mechanical And Thermal Properties ◽  
Solvent Uptake ◽  
Cellulose Composites ◽  
Mechanism Of Interaction ◽  
Thermal Stability Of ◽  
Rubber Filler

ABSTRACT An exploration of the effect of epoxidized NR with 50 mole% epoxide groups (ENR-50) as compatibilizer on the rubber–filler interaction of microcrystalline cellulose (MCC)-filled NR composites was conducted. The compatibilizing efficiency of ENR-50 was systematically examined in terms of cure and mechanical and thermal properties of NR/MCC composites. ENR-50 compatibilized NR/MCC composites showed moderate enhancement in the maximum rheometric torque and tensile properties compared to either uncompatibilized NR/MCC composite or unfilled NR system. The solvent uptake measurements indicated improved interfacial interaction between NR matrix and MCC in presence of ENR-50 as compatibilizer. A thermogravimetric analysis confirmed excellent improvement in the thermal stability of NR/MCC composite in the presence of ENR-50 as compatibilizer. Fourier transform infrared spectroscopy was used to explain the probable mechanism of interaction between NR matrix and MCC in the presence of ENR-50.

Morphology and Properties of Polyoxymethylene/Polypropylene/Microcrystalline Cellulose Composites

2017 ◽  
Vol 751 ◽  
pp. 264-269
Author(s):  
Nipawan Yasumlee ◽  
Sirirat Wacharawichanant
Keyword(s):  
Thermal Stability ◽  
Microcrystalline Cellulose ◽  
Decomposition Temperature ◽  
Sem Analysis ◽  
Morphological Properties ◽  
Melt Mixing ◽  
Cellulose Composites ◽  
The Difference ◽  
Pp Blends ◽  
Internal Mixer

The effects of microcrystalline cellulose (MCC) on mechanical, thermal and morphological properties of polyoxymethylene (POM)/polypropylene (PP) blends at different compositions were investigated. The blends and composites were prepared by melt mixing using an internal mixer at 200°C. Scanning electron microscopy (SEM) analysis revealed phase separation between POM and PP phases due to the difference in polarity of POM and PP. When adding the MCC in the blends the morphology slightly changed due to the weak interaction between MCC and polymer phases. Incorporation of MCC at 5 phr could improve Young’s modulus of POM/PP blends. The storage modulus of the blends was improved after adding MCC 5 phr due to reinforcing effect of the MCC. The thermal properties found that the addition of MCC had no effect on the melting temperature of the blends. The blends exhibited higher decomposition temperature than pure POM. The blends showed the decomposition temperatures increased when increasing amount of PP content, which were higher than pure POM. Therefore, it may be inferred that the addition of PP could enhance the thermal stability of the POM/PP blends, but the addition of MCC did not improve the thermal stability.

Thermal- and water-induced shape memory Eucommia ulmoides rubber and microcrystalline cellulose composites

2019 ◽  
Vol 77 ◽  
pp. 105910 ◽  
Author(s):  
Lin Xia ◽  
Meng Zhang ◽  
Han Gao ◽  
Guixue Qiu ◽  
Zhenxiang Xin ◽  
...  
Keyword(s):  
Shape Memory ◽  
Microcrystalline Cellulose ◽  
Eucommia Ulmoides ◽  
Cellulose Composites

Analysis of Mechanical Properties in Thermoplastic Polyurethane-Microcrystalline Cellulose Composites

Polymer Korea ◽  
2020 ◽  
Vol 44 (6) ◽  
pp. 776-783
Author(s):  
Yongju Kim ◽  
Hyeok Jun Yoon ◽  
Sang Yeon Lee ◽  
Jong Hyeok Lee ◽  
Seong Bak Moon ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microcrystalline Cellulose ◽  
Thermoplastic Polyurethane ◽  
Cellulose Composites

scholarly journals Preparation of Graphene Oxide/Cellulose Composites with Microcrystalline Cellulose Acid Hydrolysis Using the Waste Acids Generated by the Hummers Method of Graphene Oxide Synthesis

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4453
Author(s):  
Yuanyuan Miao ◽  
Xiuya Wang ◽  
Yixing Liu ◽  
Zhenbo Liu ◽  
Wenshuai Chen
Keyword(s):  
Thermal Stability ◽  
Graphene Oxide ◽  
Microcrystalline Cellulose ◽  
Hydrophobic Property ◽  
Hummers Method ◽  
High Temperature Reaction ◽  
Cellulose Composites ◽  
Freeze Dried ◽  
Strong Acidity ◽  
Better Than

The Hummers method is the most commonly used method to prepare graphene oxide (GO). However, many waste acids remain in the raw reaction mixture after the completion of this reaction. The aim of this study was to reuse these waste acids efficiently. In this study, microcrystalline cellulose (MCC) was directly dissolved in the mixture after the high-temperature reaction of the Hummers method. The residual acid was used to hydrolyze MCC, and the graphene oxide/microcrystalline cellulose (GO/MCC) composites were prepared, while the acid was reused. The effects of MCC addition (0.5 g, 1.0 g, and 1.5 g in 20 mL) on the properties of the composites were discussed. The structure, composition, thermal stability, and hydrophobicity of GO/MCC composites were characterized and tested by SEM, XRD, FTIR, TG, and contact angle tests. The results showed that MCC could be acid hydrolyzed into micron and nano-scale cellulose by using the strong acidity of waste liquid after GO preparation, and it interacted with the prepared GO to form GO/MCC composites. When the addition amount of MCC was 1 g, the thermal stability of the composite was the highest due to the interaction between acid-hydrolyzed MCC and GO sheets. At the same time, the hydrophobic property of the GO/MCC composite is better than that of the GO film. The freeze-dried GO/MCC composites are more easily dispersed in water and have stronger stability.

scholarly journals Preparation of Maleic Anhydride Grafted Polybutene and Its Application in Isotactic Polybutene-1/Microcrystalline Cellulose Composites

Polymers ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 393 ◽  
Author(s):  
Bo Wang ◽  
Kai Nie ◽  
Xiao-rong Xue ◽  
Fu-hua Lin ◽  
Xiang-yang Li ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Microcrystalline Cellulose ◽  
Cellulose Composites

scholarly journals Silicone Rubber and Microcrystalline Cellulose Composites with Antimicrobial Properties

2014 ◽  
Vol 20 (1) ◽  
Author(s):  
Virginija JANKAUSKAITĖ ◽  
Bekžan ABZALBEKULY ◽  
Aistė LISAUSKAITĖ ◽  
Igoris PROCYČEVAS ◽  
Eglė FATARAITĖ ◽  
...  
Keyword(s):  
Microcrystalline Cellulose ◽  
Silicone Rubber ◽  
Antimicrobial Properties ◽  
Cellulose Composites
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