Physical, mechanical and abrasive wear behavior of attapulgite reinforced walnut shell/PVC composites

Yang, Junqian; Zhang, Keping; Chen, Dongsheng; Zhang, Yanan; Zhang, Xi

doi:10.1007/s10965-022-03374-y

Cited by 4 publications

(2 citation statements)

References 58 publications

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“…In the concentration range from 100 to 500 μg/ml, the absorbing activity of walnut shell extracts was higher than that of TBHQ, BHA, and BHT. These data proved that walnut shell extract could be utilized as a natural replacement for synthetic antioxidants, negatively affecting human health [31], [32], [33].…”

Section: Resultsmentioning

confidence: 99%

The potential of non-traditional walnut shells waste for the production of antioxidant reach extracts intended for the food industry

Sultanova¹,

Dalabayev²,

Saduakas³

et al. 2023

Potr. S. J. F. Sci.

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Phenolic compounds extracted from walnut shells are potentially good natural sources of antioxidants for the food industry and have numerous health benefits. Walnuts have more antioxidant capacity than any other nut because the shell is primarily composed of lignin, a strong source of phenols. Studies demonstrated that lignin characterizes the shell strength level and is a source of antioxidants due to its chemical composition. In the current study, an extract obtained by extraction with a hydroalcoholic solvent of various concentrations from a walnut shell was investigated. The results of this study have proven that walnut shell extract contains the main sources of mineral elements and vitamins, which are of great importance. According to the biological value, this extract contains essential amino acids for the body. The high content of quercetin and catechin shows the antioxidant activity of the extract. In the present article, the authors disclose methods for obtaining an experimental batch of a prophylactic product based on walnut shells and give the product a technological characteristic. Consequently, a product was developed for prophylactic usage of 10 ml per 100 ml of water and must be taken 1-2 times a day for 21 days. The required product amount was calculated from the daily intake of vitamins, minerals, and flavonoids.

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Section: Resultsmentioning

confidence: 99%

The potential of non-traditional walnut shells waste for the production of antioxidant reach extracts intended for the food industry

Sultanova¹,

Dalabayev²,

Saduakas³

et al. 2023

Potr. S. J. F. Sci.

View full text Add to dashboard Cite

show abstract

“…Accordingly, the composites presented the highest tensile strength when the content of ATP was 10 wt%, which was 31% higher than pure PLA. Yang et al 28 found that WPCs composites with 3% ATP showed the strongest thermal stability, wear resistance, and the weakest water absorption. Tensile strength, flexural strength, hardness, and density increased by 31%, 16%, 10%, and 1%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of PVC composites filled with walnut shell powder hybrid attapulgite

Yang,

Zhang,

Chen

et al. 2023

Vinyl Additive Technology

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In order to reveal the effect of alkali treatment of walnut shell (WS) powder and attapulgite (ATP) hybrid filling on the properties of WS/polyvinyl chloride (PVC) composites, and to compare the effects of different reinforcement methods, WS/PVC composites were prepared by single screw melt extrusion. Furthermore, analysis was conducted on the chemical composition, thermal stability, microstructure, and physical, mechanical and wear resistance properties of composites. The results showed that ATP hybrid can enhance the performance of WPC more effectively than alkali treatment, unmodified WS blended with ATP composites have the best physical, mechanical properties, abrasive wear resistance, as well as lower water absorption, compared with the untreated, the tensile strength, bending strength and impact strength increased by 24%, 8%, and 21%, respectively. In addition, the composites of ATP hybrid alkali treated WS have the best thermal stability, and its pyrolysis residue is 15.64% higher than untreated composites. The study found that ATP have a larger potential to enhance the properties of composites than alkali treatment.Highlights Chemical treatment and inorganic mineral particle filling were used to enhance the properties of the WS/PVC composites. The experimental results showed that attapulgite can maximize the properties of the composites without alkali treatment. This means that attapulgite filling is a more effective and environmentally friendly and simple method to enhance the properties of composites than alkali treatment. The wear failure modes of the composites are mainly micro‐indentation and micro‐cutting.

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Effects of inorganic pigments on color and accelerated weathering of wheat straw fiber /polyvinyl chloride composites

Zhang,

Yang

et al. 2024

J Mater Sci

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Physical, mechanical and abrasive wear behavior of attapulgite reinforced walnut shell/PVC composites

Cited by 4 publications

References 58 publications

The potential of non-traditional walnut shells waste for the production of antioxidant reach extracts intended for the food industry

The potential of non-traditional walnut shells waste for the production of antioxidant reach extracts intended for the food industry

Preparation and properties of PVC composites filled with walnut shell powder hybrid attapulgite

Effects of inorganic pigments on color and accelerated weathering of wheat straw fiber /polyvinyl chloride composites

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