利用化学改性剂提高木材尺寸稳定、耐腐和阻燃性能

Abstract

Abstract:

Lumbers (poplar, pine etc.) treated with chemical modifying agents(LM) possess a high antishrink efficiency (ASE) at 20 to 30 chemical weight percent gains (WPG). The modified wood has broad range efficiency against mold, termite, sapstain and decay fungi. It shows a high degree of fire retadancy. Wood treated with chemical modifying agents (LM) has been proved through examinadons that it's toxicity LD50 is more than 10000mg/kg; so it cause no harmful effect to people and domestic animals.

Key words: Chemical modfying agent (LM), Modification of wood, Dimensional stability, Decay resistance, Fire retardancy

Cite this article

Mingba Ouyang. MODIFICATION OF WOOD WITH CHEMICAL MODIFYING AGENTS(LM) To IMPROVE DIMENSIONAL STABILITY DECAY RESISTANCE AND FIRE RETARDANCY Ouyang[J]. Scientia Silvae Sinicae, 1997, 33(6): 555-562.

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Figures/Tables 8

Table 1

ASE of wood samples (masson pine) treated with agent (LM-1)"

Table 1

Table 2

ASE of wood samples (populus) treated with agent (LM-1)"

Table 2

Table 3

Laboratory evaluation of modified masson pine to determine resistance to fungi"

Table 3

Table 4

Laboratory evaluation of modified poplar to determine resistance to mold"

Table 4

Table 5

Block evaluation rating system of resistance to termites"

Table 5

Table 6

Laboratory evaluation of modified poplar to determine resistance to termites"

Table 6

Table 7

Burning behaviour of modified wood treated with agent LM-2"

Table 7

Table 8

Mechanical and physical properties of modified wood (masson pine) treated with agent LM-1"

Table 8

References 5

1	Rowell R M . Chemical modification of Wood. Forest Products Abstracts, 1983. 6 (12): 363- 382.
2	Stamm A J . Effect of Polyethylene Glycol on The Dimensional Stability of Wood. Wood Products Joural, 1959. 9 (10): 375- 381.
3	American Wood-preservers' Association, 1987, Standards
4	Ellis W D , Rowell R M . Reaction of Isocyanates with Southen Pine Wood to Improve Dimensional Stability and Decay Resistance. Wood and Fiber Science, 1984. 16 (3): 349- 356.
5	中华人民共和国国家标准,建筑材料燃烧性能分级方法(classified method for buring behaviour of building materials). UDC 691: 536. 46, GB 8624-88

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MODIFICATION OF WOOD WITH CHEMICAL MODIFYING AGENTS(LM) To IMPROVE DIMENSIONAL STABILITY DECAY RESISTANCE AND FIRE RETARDANCY Ouyang

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