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Journal articles
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Open Access
Effects of different ammonium lignosulfonate contents on the crystallization, rheological behaviors, and thermal and mechanical properties of ethylene propylene diene monomer/polypropylene/ammonium lignosulfonate composites, TAPPI Journal January 2020

ABSTRACT: Thermoplastic elastomer (TPE), made from ethylene propylene diene monomer (EPDM) and polypropylene (PP) based on reactive blending, has an excellent processing performance and characteristics and a wide range of applications. However, there are currently no reports in the literature regarding the usage of TPE in making composite boards. In this paper, EPDM, PP, and ammonium lignosulfonate (AL) were used as the raw materials, polyethylene wax was used as the plasticizer, and a dicumyl peroxide vulcanization system with dynamic vulcanization was used to make a new kind of composite material. This research studied the influences of the AL contents on the crystallization behaviors, rheological properties, thermal properties, and mechanical properties of the composites. The results showed that the AL content had a noticeable impact on the performance of the composite board. Accordingly, this kind of composite material can be used as an elastomer material for the core layer of laminated flooring.

Journal articles
Magazine articles
Open Access
Wheat straw as an alternative pulp fiber, TAPPI Journal January 2020

ABSTRACT: The desire to market sustainable packaging materials has led to an interest in the use of various fiber types as a raw material. It has been suggested that the use of annual crops for partial replacement of wood fiber would result in more sustainable products. Several life cycle analyses (LCA) have been performed to evaluate these claims. These LCAs provided conflicting and contradictory results because of the local conditions and the specific pulping processes investigated. Selected LCAs are reviewed and the underlying reasons for these conflicting results are analyzed.

Journal articles
Open Access
Preparation and characterization of cellulose nanofibers from bleached pulp using a mechanical treatment method, TAPPI JOURNAL May 2014

Preparation and characterization of cellulose nanofibers from bleached pulp using a mechanical treatment method, TAPPI JOURNAL May 2014

Journal articles
Open Access
An introduction to optimizing supplemental nutrients at pulp and paper wastewater treatment plants, TAPPI JOURNAL November 2014

An introduction to optimizing supplemental nutrients at pulp and paper wastewater treatment plants, TAPPI JOURNAL November 2014

Journal articles
Open Access
Fundamental study on developing wood powder as an additive of paperboard, TAPPI JOURNAL November 2014

Fundamental study on developing wood powder as an additive of paperboard, TAPPI JOURNAL November 2014

Journal articles
Open Access
Calcium carbonate in the paper industry â?¢ blessing for coated papermaking and curse for recycling processes, TAPPI JOURNAL November 2014

Calcium carbonate in the paper industry • blessing for coated papermaking and curse for recycling processes, TAPPI JOURNAL November 2014

Journal articles
Open Access
Chip size distribution for an ultra-high-yield sulfite process

Over the Wire, Paper360º November/December 2014

Journal articles
Open Access
Agenda 2020: Next Generation Chemical Pulping

Agenda 2020: Next Generation Chemical Pulping, TAPPI JOURNAL October 2014

Journal articles
Open Access
Catalysis-a potential alternative to kraft pulping

Catalysis-a potential alternative to kraft pulping, TAPPI JOURNAL October 2014

Journal articles
Magazine articles
Open Access
How to use total dissolved solids measurements to evaluate the performance of diffuser washers—A mill study, TAPPI Journal April 2020

ABSTRACT: Various types of pulp washing equipment are available. Each washing device has a unique mechanical construction, and the washing principle is often a combination of dilution, thickening, and displacement washing. In this work, the performance of the pressure diffuser washer is studied. In stepwise trials, the effect of the feed and discharge consistencies on the performance of the diffuser was studied. The effect of the downward velocity of the screen on the pressure diffuser’s washing efficiency was also studied. The measurement of total dissolved solids (TDS) by a process refractometer was used as a wash loss measurement unit and the refractometer’s results were used in the calculations of standardized Nordén efficiency (E10) values. The chemical oxygen demand (COD) and conductivity values were also measured and their results compared to the TDS results.The results indicated that feed consistency has a significant effect on the performance and effectiveness of the diffuser washers in the mill. It can also be stated that when the downward velocity of the screen is adjusted to too high a level, the washing efficiency of the pressure diffuser decreases. As a conclusion from the mill tests, it can be stated that even small process parameter changes can provide enhanced diffuser washing at the beginning of the washing line, which has a direct effect on the performance of post-oxygen washing.

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