CHARACTERIZATION OF ASPEN EXPLOSION PULP BY CP MAS C-13 NMR

被引：6

作者：

HUA, X

CAPRETTI, G

FOCHER, B

MARZETTI, A

KOKTA, BV

KALIAGUINE, S

机构：

[1] STN SPERIMENTALE CELLULOSA CARTA & FIBRE TESSILI VEGETALI & ARTIFICIALI,MILAN,ITALY

[2] UNIV QUEBEC,TROIS RIVIERES GA9 5H7,QUEBEC,CANADA

来源：

APPLIED SPECTROSCOPY | 1993年 / 47卷 / 10期

关键词：

NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; STEAM EXPLOSION PULP;

D O I：

10.1366/0003702934334822

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Steam explosion pulps were studied by means of CP/MAS C-13 NMR spectroscopy. The steam explosion treatment of aspen chips with Na2SO3 and Na2SO3 + NaOH led to a loss in hemicellulose and an increase in cellulose crystallinity. No lignin dissolution occurred during explosion pulping, although the lignin structure might have changed to a certain extent. For comparison purposes, conventional CMP and CTMP pulps were also analyzed. The conventional treatments revealed less modification in the spectrum with regard to original wood samples.

引用

页码：1693 / 1695

页数：3

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