晨枫 发表于 2016-5-20 21:05# x7 L: B. z1 k1 r1 z5 n
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。 ...
9 q$ p+ t- z+ @) i3 P3 @# cFor indoor air quality, CLT has been tested to determine the level1 m4 m, M5 D! Y! E
and safety of the off gassing it produces. CLT glue lines were tested for 9 [7 _& x9 h8 Z A& Y1 }7 t3 zvolatile organic compounds (VOCs), including formaldehyde emissions. * r6 ^ [0 B/ t# D% @/ ~The VOCs as measured in a series of tests were found to be roughly one8 u" z5 S: M& m) b
parts per billion (ppb), well under the standard of 50 ppb deemed to be 1 \% o8 D0 ~$ U& E& N ]4 fa health hazard. 2 ^' I% y5 |. t8 u" g9 |+ q& r: e; x
source: ( ^+ f- e. V- m, z9 S1 CCROSS-LAMINATED TIMBER IN BRITISH COLUMBIA - {$ `- P9 c6 l. X- f" lhttp://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:290 L3 w$ m0 g+ l) o- W
For indoor air quality, CLT has been tested to determine the level2 Y6 [8 l( B$ e4 [. r' z
and safety of the off gassing i ...
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CLT肯定是符合标准的,我只是对现行标准不大放心。treated wood在当年也是符合标准的。
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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。
石工 发表于 2016-6-3 05:29 ' A' @* a3 O0 N$ K+ C$ r/ Z; mFor indoor air quality, CLT has been tested to determine the level8 i2 Z# ^' p. Y, @% a) U4 @$ j& o
and 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。