JP6994482B2 - ポリマー部品及びポリマー部品を作製する方法 - Google Patents
ポリマー部品及びポリマー部品を作製する方法 Download PDFInfo
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- JP6994482B2 JP6994482B2 JP2019123436A JP2019123436A JP6994482B2 JP 6994482 B2 JP6994482 B2 JP 6994482B2 JP 2019123436 A JP2019123436 A JP 2019123436A JP 2019123436 A JP2019123436 A JP 2019123436A JP 6994482 B2 JP6994482 B2 JP 6994482B2
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Description
ある実施形態では、ポリマー部品は、第一のポリマーおよび相変化物質を含んでいる第一の層を備え、ここでこの第一の層がそれを通じた可視光の5%以上の透過を可能にし、かつここで周期的温度および日射条件に対して一定期間曝された場合、このポリマー部品は、同じ周期的温度および日射条件に対して同じ期間曝されたときの相変化物質なしのポリマー部品と比較して低い実効温度を有する。
相変化物質を含んでいるポリマー組成物からできている本明細書に開示される物品およびポリマー部品は、ポリマー部品上のコーティングに対する、またはポリマー部品が結合される別の部品に対する太陽暴露および/または熱膨張差から生じる、ポリマー部品(例えば、プラスチック部品)に対する周期的温度の破壊的な累積的効果のレベルまたは速度の低下を経験し得る。例えば、太陽暴露に伴う周期的温度(すなわち、日内周期)の場合、本明細書に開示されるポリマー部品およびそれから作製される物品は、実効温度(すなわち、物質の温度感受性に特異的なある位置での1年間にわたる照射の重み付け平均温度、すなわち風化に関する活性化エネルギー)の低下を経験し得、これは、実効温度が低いほど、稼働寿命が長いという、照射と熱との併用の累積効果を反映している。ポリマー部品が結合されているコーティングまたは別の部品に対するポリマー部品の熱膨張差を伴う周期的環境または稼働温度の場合、本明細書に開示されるようなポリマーの組成およびそれに由来するポリマー部品は、温度周期または代表的な一連の周期について平均される、部品によって経験される温度偏位(ベースラインの温度に対する)の大きさを低下し得る。温度偏位の平均の大きさの低下は、膨張差の大きさ(周期または一連の周期にわたる平均)の減少をもたらし得、次に、コーティングまたは結合されたシステムの累積的な摩耗または疲弊の減少または遅延をもたらし得る。CTEが高い物質ほど膨張する傾向が高いので、多層の物品では、熱膨張係数(CTE)が高い物質を含むいずれかの層にPCMを組み込むことが望ましい場合がある。
Claims (6)
- ポリマー部品であって、
第一のポリマーを含む第一の層と、
第二のポリマーを含み、前記第一の層と熱的に接触する、不透明な第二の層と、
前記第二の層は相変化物質を含み、前記第一の層が可視光の5%以上を透過可能にし、前記第二の層は前記第一の層と同一の広がりを持たず、
周期的温度および日射条件に対して一定期間曝された場合、前記ポリマー部品が、同じ周期的温度および日射条件に対して同じ期間曝されたときの相変化物質なしのポリマー部品と比較した場合、より低い実効温度を有する、ポリマー部品。 - 前記第一のポリマーが、ポリカーボネート、アクリロニトリルブタジエンスチレン、および前述のうちの少なくとも1つを含んでいる組み合わせを含む、請求項1に記載のポリマー部品。
- 前記ポリマー部品が、取り付け装飾物、車体パネル、グレージング構成要素、ヘッドランプ構成要素、建築用構成材、または前述のうちの少なくとも1つを含んでいる組み合わせである、請求項1~2のいずれか1項に記載のポリマー部品。
- 前記ポリマー部品が、グレージング構成要素である、請求項1~3のいずれか1項に記載のポリマー部品。
- ポリマー部品を作製する方法であって、
第一のポリマーを含む第一の層を成形するステップであって、前記第一の層が、可視光の5%以上を透過可能にするステップと、
第二のポリマーを含み、前記第一の層と同一の広がりを持たない、不透明な層を成形するステップと、
相変化物質を、前記第二のポリマーに組み込むステップと、
前記ポリマー部品を周期的温度および日射条件に対して一定期間曝すステップと、
を包含し、
前記ポリマー部品が、同じ周期的温度および日射条件に対して同じ期間曝されたときの相変化物質なしのポリマー部品と比較して低い実効温度を有する、方法。 - 前記第一のポリマーが、ポリカーボネート、アクリロニトリルブタジエンスチレン、または前述のうち少なくとも1つを含んでいる組み合わせを含む、請求項5に記載の方法。
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EP2941451A4 (en) | 2016-07-13 |
US20150321456A1 (en) | 2015-11-12 |
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EP2941451A1 (en) | 2015-11-11 |
WO2014107498A1 (en) | 2014-07-10 |
KR20150102956A (ko) | 2015-09-09 |
CN104870530A (zh) | 2015-08-26 |
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CN104870530B (zh) | 2022-09-16 |
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