, _% T3 ^% }" d4 x* fFor indoor air quality, CLT has been tested to determine the level0 O% ?! {2 F# x8 |( ]( U
and safety of the off gassing it produces. CLT glue lines were tested for 4 }5 }3 L6 |* A0 ]- Nvolatile organic compounds (VOCs), including formaldehyde emissions.0 v- J4 h. Q2 q# @7 @- X% }# J
The VOCs as measured in a series of tests were found to be roughly one 3 w: X$ Q( D9 X1 S1 u/ Z2 oparts per billion (ppb), well under the standard of 50 ppb deemed to be % C7 H* H- @$ w+ T1 wa health hazard. * [" ^) S" y' g4 q 6 R! r4 k. v7 |3 f! d3 Ksource:) n' L* O' M7 p# Y; b+ \- Q3 V! M CROSS-LAMINATED TIMBER IN BRITISH COLUMBIA3 k. a7 H' c$ k, d% b2 e+ | http://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29 % S& v: m& n- }4 T6 f: gFor indoor air quality, CLT has been tested to determine the level % A1 d( c' |& C) f0 tand safety of the off gassing i ...
+ G6 A, T3 D E2 ?# v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。
石工 发表于 2016-6-3 05:29 . F8 h! F' _6 C) K4 QFor indoor air quality, CLT has been tested to determine the level ( T* |3 ^& s* Z$ d8 ` p$ _and safety of the off gassing i ...
. L7 Y/ H" K/ R4 K8 k! u; s) u' F1 e+ V
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。