Analysis of Hemp Chemical Pulp Monosaccharide Degradation Compared with Aspen and Spruce Chemical Pulps

Correia, Fatima; Roy, D. N.

doi:10.1300/j395v02n01_04

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…Typically pressing takes pace in three or four stages with the side of the sheet in contact with the felt changing at least once, as such density is typically higher on one side than the other, with a minimum towards the centre of the sheet. [152][153][154][155] These density gradients influence the tendency of the sheet to curl with changes in moisture content 156 and coupled with two-sidedness of surface roughness, they influence the printing characteristics the sheet also. [157][158][159] Accordingly, there has been recent interest in improving analysis of this aspect of sheet structure.…”

Section: Structural Anisotropymentioning

confidence: 99%

Materials properties of paper as influenced by its fibrous architecture

Sampson

2009

International Materials Reviews

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The properties of paper are highly dependent on those of the natural fibres from which the sheet is made and their interaction, as determined by the structure of the sheet. The nature of the stochastic variability in paper structure is influenced by fibre properties and manufacturing process variables. The fundamentals of paper forming processes are introduced and the influence of these on structure is discussed in the context of theoretical models. Key mechanical and optical properties are described and their dependence on structure, as guided by theory, is reviewed. Throughout, the structural dependence of paper properties for satisfactory performance in end use applications is emphasised.

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Section: Structural Anisotropymentioning

confidence: 99%

Materials properties of paper as influenced by its fibrous architecture

Sampson

2009

International Materials Reviews

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“…A review of the papermaking literature shows that IH FRMs (stalks, phloem, and woody core) can be processed into fibrous papermaking pulps using many pulping methods, such as soda [78,91,[112][113][114][115][116]; soda anthraquinone (Soda-AQ) [96,117]; sodaoxygen [92,115]; soda-or potassium-peroxide [115,118]; kraft [91,99,100,115,117]; kraft with the addition of anthraquinone (Kraft-AQ) [115]; kraft-NaBH 4 [98]; alkaline-sulfite [115]; neutral-sulfite [119]; organosolv [93,120,121]; thermomechanical and cold-soda (CS) [108]; alkaline-peroxide (APXP) [94]; chemithermomechanical [95,122,123]; and sulfite [92,115,118]. Of these methods, however, attention should be paid to kraft pulping.…”

Section: Pulping Methods and Their Effects (Yield Of Pulp And Pulp Pr...mentioning

confidence: 99%

“…As for the strength properties of IH pulps, studies showed the possibility of achieving a medium or very good (60-100 Nm/g) level of tensile strength of handsheets made from As for the strength properties of IH pulps, studies showed the possibility of achieving a medium or very good (60-100 N•m/g) level of tensile strength of handsheets made from IH stalks (Hs) pulp [93,96,97,114,115,117], very good (70-90 N•m/g) tensile strength level of IH woody-core (Hw) pulp [113,116], and a low or medium (30-65 N•m/g) tensile strength level of IH bast fibres (Hbf) or IH bast pulps [93,115,125] (Figure 6a, yellow columns).…”

Section: Pulping Methods and Their Effects (Yield Of Pulp And Pulp Pr...mentioning

confidence: 99%

Industrial Hemp as a Potential Nonwood Source of Fibres for European Industrial-Scale Papermaking—A Review

Danielewicz

2023

Materials

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The suitability of industrial hemp (IH) as a source of fibres for European industrial-scale papermaking, including, in particular, European kraft pulp mills (EKMPs) (i.e., plants producing the predominant amount of virgin pulps in Europe), was discussed, considering the causal, cultivation, technological, and application aspects of this issue. The work showed that there are generally premises for using straw from nonwood crops in European papermaking. As for the IH, it was found that IH stalks are the best IH fibrous raw material for EKMPs. There are a few cultivation factors favouring the use of IH stalks in them and a few, though important (e.g., small cultivation areas), factors not conducive to this use. Most technological factors favour the use of IH stalks in EKPMs, apart from the large differences in the length of the IH bast and woody-core fibres. The analysis of application factors indicates lower usefulness of IH stalks than wheat, rye or triticale straws, stalks of Miscanthus × giganteus, Virginia mallow, and kenaf. This is due to the much greater availability of these cereal straws than IH and less variation in the fibre length of cereal straws, Miscanthus × giganteus, Virginia mallow, and kenaf than in IH stalks. The main conclusion from the conducted query is the statement that the presence of IH varieties with fibre lengths more similar to wood would reduce the number of technological and application factors unfavourable to their use in EKPMs and increase the competitiveness of hemp straw vs. wood as a raw material for European large-scale papermaking.

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“…Subsequently in 2005, Correia and Roy measured the degree of depolymerization and eventual solubilization of cellulose and hemicelluloses during soda pulping and Kraft pulping of hemp. Following pulping, the pulps underwent hydrolysis in order to quantify the sugars.…”

Section: Solid Materials From Hempmentioning

confidence: 99%

Cannabis as a Feedstock for the Production of Chemicals, Fuels, and Materials: A Review of Relevant Studies To Date

Gomez

Clarke

2021

Energy Fuels

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As societies place greater emphasis on sustainability, there is a move toward creating a circular economy in which renewable resources, such as agriculture and forestry residues, serve as feedstocks in the production of energy and chemicals. One emerging agricultural commodity that may potentially serve as a feedstock for numerous chemicals and materials is cannabis. For most of the last one hundred years the use of cannabis as a biomass feedstock has been all but impossible, due to its legal status. However, over the last 20 years the changing legal status of cannabis has resulted in a large number of studies which have investigated cannabis as a feedstock for diverse bioproducts, including polymers, pulp, and biofuels. Being a relatively new agricultural commodity, the literature on chemicals, fuels, and materials derived from cannabis is spread across numerous disparate disciplines, such as engineering, agriculture, chemistry, and biology. Thus, the purpose of this review is to compile and summarize the relevant studies that illustrate the use of cannabis as a feedstock in the production of chemicals, fuels, and materials as well as to highlight the challenges and possibilities for future research opportunities.

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Analysis of Hemp Chemical Pulp Monosaccharide Degradation Compared with Aspen and Spruce Chemical Pulps

Cited by 7 publications

References 8 publications

Materials properties of paper as influenced by its fibrous architecture

Materials properties of paper as influenced by its fibrous architecture

Industrial Hemp as a Potential Nonwood Source of Fibres for European Industrial-Scale Papermaking—A Review

Cannabis as a Feedstock for the Production of Chemicals, Fuels, and Materials: A Review of Relevant Studies To Date

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