UV degradation characteristics of GPI standard pipes: Regarding external UV deterioration of GPI standard lamination of centrifugal molded tube (J)
The outer surface of the GPI standard laminated product of centrifugally formed pipes used for oil-based pipes, etc. can withstand deterioration due to ultraviolet rays and contact wear for more than 40 years. The applicable resin consists of an exterior laminated structure consisting of urethane-mo...
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| Published in | GPI Journal Vol. 9; no. 1; pp. 51 - 55 |
|---|---|
| Format | Journal Article |
| Language | Japanese |
| Published |
GPI Standards Committee
2023
一般社団法人 GPI標準化委員会 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 2189-3373 2433-4510 |
| DOI | 10.24570/gpijournal.9.1_51 |
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| Abstract | The outer surface of the GPI standard laminated product of centrifugally formed pipes used for oil-based pipes, etc. can withstand deterioration due to ultraviolet rays and contact wear for more than 40 years. The applicable resin consists of an exterior laminated structure consisting of urethane-modified epoxy resin (vinyl ester), inorganic pigments (titanium oxide, etc.), and glass fiber mat (200#CSM), and the centrifugal force of centrifugal molding is 40G or more and it is in a centrifugal state. Since the outer surface of the cured product is formed by centrifugation of the ultraviolet absorber, it has been found that there is very little UV deterioration of the outer surface of the tube. |
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| AbstractList | The outer surface of the GPI standard laminated product of centrifugally formed pipes used for oil-based pipes, etc. can withstand deterioration due to ultraviolet rays and contact wear for more than 40 years. The applicable resin consists of an exterior laminated structure consisting of urethane-modified epoxy resin (vinyl ester), inorganic pigments (titanium oxide, etc.), and glass fiber mat (200#CSM), and the centrifugal force of centrifugal molding is 40G or more and it is in a centrifugal state. Since the outer surface of the cured product is formed by centrifugation of the ultraviolet absorber, it has been found that there is very little UV deterioration of the outer surface of the tube.
油性管などに用いられる遠心成形管のGPI標準積層製品の外面の耐久性は、紫外線による劣化と接触摩耗に対して対応年数40年以上耐える。適用樹脂はウレタン変性エポキシ樹脂（ビニルエステル）と無機顔料（酸化チタン、他）とガラス繊維マット（200＃CSM）からなる外装積層構造からなり、遠心成形の遠心力が40G以上で遠心分離状態で硬化された製品は、紫外線吸収剤の遠心分離で管外表面を構成することから、管外表面の紫外線劣化は極めて少ないことが判明した。 The outer surface of the GPI standard laminated product of centrifugally formed pipes used for oil-based pipes, etc. can withstand deterioration due to ultraviolet rays and contact wear for more than 40 years. The applicable resin consists of an exterior laminated structure consisting of urethane-modified epoxy resin (vinyl ester), inorganic pigments (titanium oxide, etc.), and glass fiber mat (200#CSM), and the centrifugal force of centrifugal molding is 40G or more and it is in a centrifugal state. Since the outer surface of the cured product is formed by centrifugation of the ultraviolet absorber, it has been found that there is very little UV deterioration of the outer surface of the tube. |
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| Snippet | The outer surface of the GPI standard laminated product of centrifugally formed pipes used for oil-based pipes, etc. can withstand deterioration due to... |
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| SubjectTerms | centrifugal molding FRP surface resin titanium oxide ultraviolet degradation 紫外線劣化 表面樹脂 遠心成形法 酸化チタン |
| Title | UV degradation characteristics of GPI standard pipes: Regarding external UV deterioration of GPI standard lamination of centrifugal molded tube (J) |
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