국내산 주요 죽종의 소다 및 소다-안트라퀴논 펄핑 특성 비교

이규성(Kyu-Seong Lee),송우용(Woo-Yong Song),신수정(Soo-Jeong Shin) 한국펄프·종이공학회 2016 펄프.종이기술 Vol.48 No.3

As a raw material for pulp and paper industry, Moso bamboo, Timber bamboo and Henon bamboo pulps were prepared by soda or soda-anthraquinone(Soda-AQ) pulping process. Soda–AQ pulp yields was higher in Henon bamboo (43.2%) than in Moso bamboo or Timber bamboo (32.7-39.2%), but quite lower than hardwood species. In Kappa number comparison, Henon bamboo pulp showed lower (16.6) with 50 min cooking to 170 ℃ than that of Moso bamboo (22.8) and Timber bamboo (18.9) with 90 min cooking to 170 ℃. Fiber length of Timber bamboo soda pulp had higher (1.46 mm) than that of Moso bamboo or Henon bamboo (1.18-1.36 mm). All three bamboo pulps showed longer average fiber length than commercial hardwood pulp. With higher pulp yield and lower Kappa number, Henon bamboo is better raw material for pulp than Moso bamboo and Timber bamboo.

Manufacture of Wood Veneer-Bamboo Zephyr Composite Board : Ⅰ. Properties of Bamboo Zephyr and Composite Board Made from Moso, Giant Timber and Hachiku Bamboo

Roh, Jeang Kwan,Kim, Jae Kyung,Kim, Sa Ick,Ra, Jong Bum,Kim, Yu Jung,Park, Sang Jin 한국목재공학회 2004 목재공학 Vol.32 No.3

Wood veneer-bamboo zephyr composite board(WBCB) was manufactured to evaluate the properties of bamboo as alternative raw materials for the manufacture of composite panels. Bamboo zephyr was prepared using Moso bamboo (Phyllostachys pubesens Mazel. et Z), Giant timber bamboo (Phyllostachys bambusoides Sieb. et Zucc), and Hachiku bamboo (Phyllostachys nigra var. henosos Stapf). The effect of age and species of bamboo on zephyr production was investigated in terms of the pass number of bamboo split through the rollers, and the width increasing rate of bamboo split. Five-ply WBCBs were produced with Keruing veneers as face and back layers, leading to three layers of bamboo zephyr sheets as core layer. Each layer was placed so that its grain direction was at right angles to that of the adjacent layer and the layers were bonded together with phenol-formaldehyde (PF) resin. The pass number of bamboo split was increased with an increase of the thickness of culm wall. At the same thickness, Moso bamboo showed no effect of the age of bamboo on the pass number. The pass number of split of Giant timber bamboo was lower than that of Moso bamboo. No significant effect of bamboo species and age on the width of zephyr produced was observed. The width of zephyr obtained could be expressed as a function of diameter multiplied by thickness of culm wall. The physical and mechanical properties of WBCB manufactured in all given conditions did not show any significant differences, and they were above the requirement of Korean Standard (KS).

Preparation of moso bamboo columnar activated carbon with high adsorption property via polyacrylamide@asphalt adhesives and steam activation

Liu Huan,Miao Yu,Tian Huayu,Chen Yishan,Wang Enfu,Huang Jingda,Zhang Wenbiao 한국탄소학회 2024 Carbon Letters Vol.34 No.3

Moso bamboo, as a kind of renewable functional material, exhibits outstanding development potential. It is promising to prepare activated carbon with good mechanical strength and high specific surface area using moso bamboo as raw material. In this work, we employed a hydraulic extruder to extrude the bamboo charcoal and the adhesive to obtain the moso bamboo activated carbon, and improved the specific surface area of the columnar activated carbon through high-temperature water vapor activation. Through the catalytic role of the water vapor activation process, the formation and expansion of the pores were promoted and the internal pores were greatly increased. The obtained columnar activated carbon shows excellent mechanical strength (93%) and high specific surface area (791.54 m2/g). Polyacrylamide@asphalt is one of the most effective adhesives in the high-temperature water vapor activation. The average pore size (22.99 nm) and pore volume (0.36 cm3/g) of the prepared columnar activated carbon showed a high mesoporous ratio (83%). Based on the excellent pore structure brought by the activation process, the adsorption capacity of iodine (1135.75 mg/g), methylene blue (230 mg/g) and carbon tetrachloride (64.03 mg/g) were greatly improved. The resultant moso bamboo columnar activated carbon with high specific surface area, excellent mechanical properties, and outstanding adsorption capacity possesses a wide range of industrial applications and environmental protection potential.

Improvement of Physical and Drying Properties of Large Diameter and Long Axis Moso Bamboo (Phyllostachys pubescens) Poles Using Heat Treatment

( Kyoung-jung Kim ),( Young-jin Kim ),( Se-yeong Park ) 한국목재공학회 2023 목재공학 Vol.51 No.6

This study aimed to convert underutilized moso bamboo into high-value added products such as fences, interior materials, lighting fixtures, and accessories. Green moso bamboo poles with a diameter of approximately 10 cm and a length of approximately 3.7 m were heat treated at 140℃ using a large-scale kiln. The processing time was meticulously adjusted through various stages, including pretreatment (6-8 hours at 60℃), cooking (8-10 hours at 100℃), steaming (26-30 hours at 120℃), heating (4-6 hours at 140℃), and finally, cooling (below 80℃). A meticulously designed heat treatment process has enabled efficient mass production of moso bamboo poles with improved qualities, including minimal splitting, moisture levels below 3%, and a specific gravity of 1.05. The focus of this study was to present the physical and drying properties, such as color, dimensional change, specific gravity, moisture content, and splitting, observed during the heat treatment process.

Imposed drought effects on carbon storage of moso bamboo ecosystem in southeast China: results from a field experiment

Ge, Xiaogai,Zhou, Benzhi,Wang, Xiaoming,Li, Qian,Cao, Yonghui,Gu, Lianhong Springer Japan 2018 Ecological research Vol.33 No.2

<P><B>Abstract</B></P><P>Drought can severely affect carbon dynamics in forest ecosystems through impacts on carbon storage, reduced carbon fixation, abatement of the carbon sink function, and alteration of carbon sink‐source relationships. Currently, little is known about the effects of drought on the productivity and spatial patterns of carbon in bamboo forests. The objective of this study was to assess the effect of imposed drought on the carbon storage and soil carbon dynamics of a bamboo forest ecosystem in subtropical area of China. Drought was imposed via throughfall exclusion in moso bamboo forest from July 2012 to April 2013. Results indicated that bamboo shoots, new culms, shoot height, and diameter at breast height were significantly lower in throughfall exclusion (TE) plots than in control check (CK) plots, with decrease of 64.6, 70.8, 10.6 and 11.3%, respectively. Annual carbon sequestration for TE plots was 58.1% lower than that for CK plots. Soil carbon storage in the 0–60‐cm layer in CK and TE plots decreased by 3.7 and 12.2%, respectively, indicating that drought can decrease soil respiration by altering substrate availability. Ecosystem carbon storage increased by 4.75 t ha<SUP>−1</SUP> in CK plots but decreased by 13.71 t ha<SUP>−1</SUP> in TE plots. Our findings highlight that drought can reduce carbon storage and alter the spatial pattern of carbon in moso bamboo forest ecosystems, particularly when drought occurs during the development bamboo shoot. Our findings should provide a better understanding of carbon sequestration potential and aid determination of how future climate change may impact carbon budgets.</P>

맹종죽(Phyllostachys pubescens)의 소다 안트라퀴논 펄핑 특성 및 이산화염소 표백 특성

이규성(Kyu-seong Lee),송우용(Woo-Yong Song),신수정(Soo-Jeong Shin) 한국펄프·종이공학회 2016 펄프.종이기술 Vol.48 No.2

Moso Bamboo was investigated as the a raw material for pulp and paper industry. Soda-Anthraquinone (Soda-AQ) pulping, elemental chlorine free bleaching was applied. Yield of soda or soda-AQ pulp was 29.3-31.7% with Kappa number 33.0-22.8 with different cooking time or anthraquinone addition at 20% active alkali. In soda or soda-AQ pulping, 81-86% of xylan was removed, which was the main reason for lower pulp yield than hardwood species. Average fiber length of Moso Bamboo soda-AQ pulp was 1.36 mm with 15.5 μm fiber width. Soda-AQ pulp from Moso Bamboo (P-3, lowest Kappa pulp) was bleached with 5.5-6.5% of chlorine dioxide charge as D0ED1 bleaching sequence. In 3-stages ECF bleaching, final brightness of 85.3% ISO was achieved with total chlorine dioxide 6.5%.

남부지역 맹종죽과 솜대림의 현존량 추정에 관한 연구

이광수,정수영,유병오,박준형,김춘식,주남규 경상대학교 농업생명과학연구원 2014 농업생명과학연구 Vol.48 No.6

본 연구는 남부지역 맹종죽 및 솜대림의 죽령에 따른 현존량 추정 및 비교를 위해 당년생과 2년생 이상의 죽림을 대상으로 10m × 10m 크기의 조사구 3개를 각각 설치하여 경급에 따라 선발하고 벌채하였다. 부위별 건중량은 맹종죽과 솜대 모두 줄기>가지>잎, 죽령별로 2년생 이상>당년생 순으로 나타났으며, 건중량비는 맹종죽 2년생 이상 0.62, 당년생 0.55, 솜대 2년생 이상 0.60, 당년생 0.57로 나타났다. 줄기 건중량비를 이용한 절단 위치 선정 군집분석 결과 두 죽종 모두 수고의 75% 위치에서 상단부와 하단부 두 집단으로 구분 후 절단하여 분석하면 현존량 조사가 효율적이라고 판단된다. 추정식 W=aD+bD2을 이용하여 추정된 지상부의 ha당 현존량은 맹종죽 2년생 이상 106.4ton/ha, 1년생 5.5ton/ha, 전체연령 113.3ton/ha, 솜대 2년생 이상 109.2ton/ha, 1년생 6.4ton/ha, 전체연령 106.0ton/ha로 나타났다. 지하부의 ha당 현존량은 맹종죽 지하경이 32.85ton/ha, 원뿌리 10.56ton/ha로 지하경>원뿌리 순이였으며 지상부 현존량의 35.8%였다. 솜대는 지하경 16.89ton/ha, 원뿌리 21.06ton/ha로 원뿌리>지하경 순이였으며 지상부 현존량의 38.3%로 나타났다. This study was conducted to biomass estimation factors for each bamboo component from two age-sequence (current-year-old, more than 2-year-old) of Phyllostachys pubescen(PhP;Moso bamboo) and Phyllostachys nigra(Phn; Henon bamboo) stands. The dry weight of culm segment determined by relative heights of total bamboo height show us 1st to 4th culm segment(1st : 0∼25%, 2nd : 25∼50%, 3rd : 50∼75%, 4th : 75∼100%) by the results of cluster analysis for dry weight ratio. This result show that upper and lower part of 75% height estimation. Aboveground biomass estimation by W=aD+bD2 was more than 2-year-old from the bottom area against total culm height can be used in bamboo biomass(Phyllostachys pubescens 106.4ton/ha; Phyllostachys nigra 109.2ton/ha) higher than current-year-old(Phyllostachys pubescens 5.5ton/ha; Phyllostachys nigra 6.1ton/ha). Total underground biomass was (Phyllostachys pubescens 43.41ton/ha; Phyllostachys nigra 38.1ton/ha) fewer than aboveground biomass.

국내산 죽종의 화학 성분 및 섬유소 이용에 관한 연구 (제2보)

강규영(Kyu-Young Kang),윤승락(Seung-Lak Yoon),전권석(Kwon-Seok Jeon) 한국펄프·종이공학회 2012 펄프.종이기술 Vol.44 No.4

맹종죽ㆍ왕대의 소다, 소다 안트라퀴논 펄핑 특성

이규성(Kyu-Seong Lee),송우용(Woo-Yong Song),신수정(Soo-Jeong Shin) 한국펄프·종이공학회 2016 한국펄프·종이공학회 학술발표논문집 Vol.2016 No.4

맹종죽, 왕대의 소다-안트라퀴논 펄핑 특성

정수빈,박천웅,신수복 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0

현재 펄프 제지산업에서 목질 원료는 다른 산업과의 원료 경쟁으로 인해 원료 수급에 제한받고 있다. 이러한 문제를 해결하기 위해 지속적인 원료 공급이 가능하도록 계획조림을 통해 지속적으로 원료 공급이 이루어질 수 있도록 하는 방법과 기존 목질 재료 외 다른 원료를 펄프 제지산업에 사용하는 것이 연구되고 있다. 그중에서 대나무는 섬유 길이가 침엽수와 비슷하고, 단기간 재생산이 가능한 장점이 있다. 본 연구에서는 국내에서 자생하는 대나무인 맹종죽과 왕대를 원료로 소다-안트라퀴논 펄핑법을 적용하여 제조한 펄프의 특성을 분석하였다.