Dergiler / Turkish Journal of Agriculture and Forestry / 2013 / Cilt: 37 - Sayı: 2

The effects of heartwood and sapwood on kraft pulp properties of Pinus nigra J.F.Arnold and Abies bornmuelleriana Mattf.

Sayfa
243–248
Yayın Tarihi
2013-02-01
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

However, the burst and tensile indices of heartwood unbeaten and beaten kraft pulp were higher than those of sapwood.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:The effects of heartwood and sapwood on kraft pulp properties of Pinus nigra J.F.Arnold. and Abies bornmuelleriana Mattf. were investigated.
📊
Temel Bulgular & Veri:Kraft cookings of heartwood and sapwood each species were separately done under fixed cooking conditions.
💡
Sonuç & Katkı:However, the burst and tensile indices of heartwood unbeaten and beaten kraft pulp were higher than those of sapwood.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Key words: Heartwood · kraft method · sapwood

Özet

The effects of heartwood and sapwood on kraft pulp properties of Pinus nigra J.F.Arnold. and Abies bornmuelleriana Mattf. were investigated. The differences in terms of chemical composition and fiber properties between the heartwood and sapwood of these species were also examined. Heartwood had more holocellulose and extractive compared to sapwood. Moreover, heartwood fiber length was shorter than that of sapwood. Kraft cookings of heartwood and sapwood each species were separately done under fixed cooking conditions. The results indicated that heartwood pulp had lower pulp viscosity and total pulp yield than sapwood did. The tear index of sapwood unbeaten and beaten kraft pulp was higher than that of heartwood. However, the burst and tensile indices of heartwood unbeaten and beaten kraft pulp were higher than those of sapwood.

Abstract

The effects of heartwood and sapwood on kraft pulp properties of Pinus nigra J.F.Arnold. and Abies bornmuelleriana Mattf. were investigated. The differences in terms of chemical composition and fiber properties between the heartwood and sapwood of these species were also examined. Heartwood had more holocellulose and extractive compared to sapwood. Moreover, heartwood fiber length was shorter than that of sapwood. Kraft cookings of heartwood and sapwood each species were separately done under fixed cooking conditions. The results indicated that heartwood pulp had lower pulp viscosity and total pulp yield than sapwood did. The tear index of sapwood unbeaten and beaten kraft pulp was higher than that of heartwood. However, the burst and tensile indices of heartwood unbeaten and beaten kraft pulp were higher than those of sapwood.

🔖

Bu Makaleye Atıf Yap

ATAÇ, Y., EROĞLU, H. (2013). The effects of heartwood and sapwood on kraft pulp properties of Pinus nigra J.F.Arnold and Abies bornmuelleriana Mattf.. Turkish Journal of Agriculture and Forestry, Cilt: 37 - Sayı: 2, 243–248. https://ajindex.com/articles/179911

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (18)

  1. Allen LH (2000)
  2. Pitch Control in Paper Mills, Chapter 13. In: Pitch Control, Wood Resin and Deresination (Eds. EL Back, LH Allen). Tappi Press,
  3. Atlanta, GA, USA, 307–328.
  4. Ay N, Şahin H (1998) An investigation of internal morphological properties of sapwood and heartwood of oriental spruce (Picea orientalis (L.) Link.). Turk J Agric For 22: 203–207.
  5. Berlyn GP, Miksche JP (1976) Botanical Microtechnique and Cytochemistry. Iowa State Univ. Press,
  6. Iowa. Bertaud F, Holmbom B (2004) Chemical composition of earlywood and latewood in Norway spruce heartwood, sapwood and transition zone wood. J Wood Sci Technol 38: 245–256. Brännvall E (2009)
  7. Pulping technology, Chapter 6. In: Pulp and Paper Chemistry and Technology Volume 2 Pulping Chemistry and Technology (Eds. M Ek, G Gellerstedt, G Henriksson). Walter de Gruyter, Berlin, pp. 121–147.
  8. Browning BL (1967) Methods of Wood Chemistry; Interscience Publishers,
  9. New York. Campbell AG, Kim WJ, Koch P (1990) Chemical variation in lodgepole pine with sapwood/heartwood, stem height and variety. Wood Fiber Sci 22: 22–30.
  10. Daniel G (2009)
  11. Wood and fiber morphology, Chapter 3. In: Pulp and Paper Chemistry and Technology Volume 1 Wood Chemistry and Wood Biotechnology (Eds. M Ek, G Gellerstedt, G Henriksson). Walter de Gruyter, Berlin, pp. 45–70.
  12. El-Juhany LI (2011) Evaluation of some wood quality measures of eight-year-old Melia azedarach trees. Turk J Agric For 35: 165–171.
  13. Esteves B, Gominho J, Rodrigues JC, Miranda I, Pereira H (2005) Pulping yield and delignification kinetics of heartwood and sapwood of maritime pine. J Wood Chem Technol 25: 217–230.
  14. Fengel D, Wegener G (1989) Wood: Chemistry, Ultrastructure, Reactions. Walter De Gruyter, New York, p. 613. Fujita M, Harada H (2001) Ultrastructure and formation of wood cell wall, Chapter 1. In: Wood and Cellulosic Chemistry, (Eds. DN-S Hon, N Shiraishi), Marcel Dekker Inc., New York, pp. 1– Gao H, Zhang LP, Liu SQ (2011a) Comparison of KP pulping properties between heartwood and sapwood of poplar I-69. Advanced Materials Research 236–238: 1437–1441.
  15. Gao H, Zhang L, Liu SQ (2011b) Comparison of KP pulping properties between heartwood and sapwood of Cedrus deodara (Roxb.) G. Don. Advanced Materials Research 55–57: 1778– 17 Han JS, Rowell JS (1997)
  16. Chemical composition of fibers, Chapter In: Paper and Composites from Agrobased Resources; (Eds. RM Rowell, RA Young, JK Rowell). CRC Lewis Publishers, New York, pp. 83–134.
  17. Henriksson G, Brännvall E, Lennhol H (2009)
  18. The trees, Chapt