Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Collections
Journal articles
Magazine articles
Tetraethyl orthosilicate-containing dispersion coating — water vapor and liquid water barrier properties, TAPPI Journal September 2021
ABSTRACT: An aqueous styrene-butadiene latex dispersion coating containing in-situ processed tetraethyl orthosilicate (TEOS) applied on paperboard demonstrated improved water barrier performance. Coatings containing TEOS equivalent to 0.8% silicon dioxide (SiO2; dry basis) exhibited water vapor performance of < 25 g/m2/day (23°C, 50% relative humidity [RH]) and liquid water barrier performance Cobb 1800 s of < 6 g/m2, when applied as a single-layer 18 g/m2 coating. Cobb 1800 s barrier performance was still good (< 11 g/m2) at coat weights of 7–10 g/m2. The use of filler materials such as kaolin improved the vapor barrier properties of the coating, but this was not critical to the liquid water barrier properties.
Journal articles
Magazine articles
Evaluation of rice straw for purification of lovastatin, TAPPI Journal November 2021
ABSTRACT: Cholesterol synthesis in the human body can be catalyzed by the coenzyme HMG-CoA reductase, and lovastatin, a key enzyme inhibitor, can reduce hypercholesterolemia. Lovastatin can be obtained as a secondary metabolite of Aspergillus terreus ATCC 20542. In this study, rice straw of lignocellulose was used in aeration and agitation bath fermentation in a 1-L flask, and a maximal crude extraction rate of 473 mg/L lovastatin was obtained. The crude extract was treated with silica gel (230–400 mesh) column chromatography. Ethyl acetate/ethanol (95%) was used as the mobile phase, and isolation was performed through elution with various ethyl acetate/ethanol ratios. The highest production rate of 153 mg/L was achieved with ethyl acetate/ethanol in a ratio of 8:2. The lovastatin gained from the crude extract was added to 12 fractions treated with 0.001 N alkali, and acetone was then added. After 24 h of recrystallization at 4°C, the extract underwent high-performance liquid chromatography. The purity had increased from 25% to 84.6%, and the recovery rate was 65.2%.
Magazine articles
A waste management program for paper mill sludge high in ash, TAPPI JOURNAL, April 1990, Vol. 73(4)
A waste management program for paper mill sludge high in ash, TAPPI JOURNAL, April 1990, Vol. 73(4)
Magazine articles
Hot-melt adhesive development and the proliferation of raw materials, TAPPI JOURNAL, September 1991, Vol. 74(9)
Hot-melt adhesive development and the proliferation of raw materials, TAPPI JOURNAL, September 1991, Vol. 74(9)
Magazine articles
Alberta newsprint and alberta research council bring deinking pilot plant on-stream, TAPPI JOURNAL, December 1992, Vol. 75(12)
Alberta newsprint and alberta research council bring deinking pilot plant on-stream, TAPPI JOURNAL, December 1992, Vol. 75(12)
Magazine articles
A visit to mount st. helens; meta lake illustrates natural recovery following volcanic eruption, TAPPI JOURNAL, April 1994, Vol. 77(4)
A visit to mount st. helens; meta lake illustrates natural recovery following volcanic eruption, TAPPI JOURNAL, April 1994, Vol. 77(4)
Magazine articles
Beauty or the beast: life after iso 9000, TAPPI JOURNAL, October 1994, Vol. 77(10)
Beauty or the beast: life after iso 9000, TAPPI JOURNAL, October 1994, Vol. 77(10)
Magazine articles
Shop Talk: Screw presses in waste dewatering, December 1995 Tappi Journal [95Dec233.pdf]
Screw presses in waste dewatering, TAPPI JOURNAL, December 1995, Vol. 78(12)
Magazine articles
Optical properties of pulp and paperâ?? New standardization proposals, December 1995 Tappi Journal [95Dec45.pdf]
Optical properties of pulp and paper - new standardization proposals, TAPPI JOURNAL, December 1995, Vol. 78(12)
Magazine articles
Mönsterås going 100% TCF as it increases production and minimizes emissions, December 1995 Tappi Journal [95Dec49.pdf]
Monsteras going 100% tcf as it increases production and minimizes emissions, TAPPI JOURNAL, December 1995, Vol. 78(12)