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发表于 2008-11-12 21:40:34
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来自: 中国上海
原帖由 freeshaw1 于 2008-11-12 11:57 发表 http://www.3dportal.cn/discuz/images/common/back.gif
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版主回答不对,UPVC的U是UNPLASTIZED的缩写,未增塑的意思,通常UPVC或者PVC-U都翻译成硬聚氯乙烯,与加大量增塑剂的软PVC相对应.& s( M( p" U# k' @7 S
2 ^; q; i2 X5 S! j* c# d另,交联的英文词是 cross-link, 不是USA中的UNITED.
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% t8 ]4 \3 z3 _请参考下列标准:
4 P4 D# t* |/ l! |9 z! e1 ~2 ]ASTM F2080-2006 Standard Specification for Cold-Expansion Fittings With Metal Compression-Sleeves for Cross-Linked Polyethylene (PEX) Pipe! Q& R& g2 }8 N
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ISO 4422-3-1996 Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply -- Specifications -- Part 3: Fittings and joints
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( I; F) W- u3 T/ E' f. q$ w6 NBS 3505:1986 Specification for unplasticized polyvinyl chloride (PVC-U) pressure pipes for cold potable water! C3 n9 H. m! F1 }9 d
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ISO 21138 :2007 Plastics piping systems for non-pressure underground drainage and sewerage -- Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) 8 A4 F6 C4 ?2 {# O# K& `6 T2 |
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交联聚氯乙烯的缩写是XLPVC, 版主可以以此为关键词搜索的. |
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