晨枫 发表于 2016-5-20 21:05 * @$ K" G: f& s2 H$ V& F. l {这是防白蚁危害的。也真是因为这些化学处理,我对CLT的长期安全性有怀疑,缓慢释放出来对人体不好。 ...
/ n- p. G$ u) i1 `9 h5 sFor indoor air quality, CLT has been tested to determine the level1 \. v! t$ R$ h
and safety of the off gassing it produces. CLT glue lines were tested for! U6 W6 i2 J3 }3 {
volatile organic compounds (VOCs), including formaldehyde emissions. $ D. u x1 P+ w9 G9 v+ w4 ZThe VOCs as measured in a series of tests were found to be roughly one ' w; \4 {* ?9 K0 U! L. yparts per billion (ppb), well under the standard of 50 ppb deemed to be# ?3 ?. d' Q; h% R# l s, j
a health hazard. + V; e: j! s6 |3 l# L/ R2 ^" I3 \" e9 c& n* C3 X1 M X
source:* T7 L, s. {1 l: P: t1 m( x CROSS-LAMINATED TIMBER IN BRITISH COLUMBIA % @3 _; C1 n. ^3 M" Bhttp://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29 0 K% @( x9 j; K, A! F% cFor indoor air quality, CLT has been tested to determine the level & R! L6 f. b( b. L5 J2 qand safety of the off gassing i ...
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室内和室外用的材料是不一样的,室内用的是聚酰胺,这种东西稳定无毒。以前冰箱用的白色的泡沫是有致癌的东西放出来的。国内好像还在大量的应用,这边好像很难见到了,但在包装材料上还可以见到。。不过我个人始终对有机材料有怀疑,聚酰胺只不过结构更为稳定罢了,理论上应该还是有挥发的,只不过可能在现在仪器检测下限。另外FDA或官方机构的东西也不能全信,三聚氰胺就是FDA认为无毒的东西。我个人对有氮的有机化学物质和苯环类的东西始终用畏惧感。哈哈哈,我知道这不是科学的精神。
本帖最后由 fish97 于 2016-6-3 14:00 编辑 " n, V/ P q4 N: ]
石工 发表于 2016-6-3 05:296 m5 K' y9 _& D( t5 ^+ R/ b0 `; K
For indoor air quality, CLT has been tested to determine the level * Z3 k/ h- g% b5 @9 z5 wand safety of the off gassing i ...
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60年代这边还很时兴喷聚尿醛泡沫,后来就是因为有formaldehyd释放而弃用了。