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This is the free Material Data Center Datasheet of VANDAR® 2500 - PBT - Celanese

Material Data Center offers the following functions for VANDAR® 2500:
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Processing/Physical Characteristics - 機械的特性 - 熱的特性 - その他の特性.
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Processing/Physical Characteristics値単位テスト基準
ISO データ
成形収縮率, 平行 1.9 % ISO 294-4, 2577
成形収縮率, 直角 1.9 % ISO 294-4, 2577
機械的特性値単位テスト基準
ISO データ
引張弾性率 1450 MPa ISO 527
降伏応力 35 MPa ISO 527
降伏ひずみ 5 % ISO 527
破壊呼びひずみ >50 % ISO 527
シャルピー衝撃強さ, +23°C 203 kJ/m² ISO 179/1eU
シャルピー衝撃強さ, -30°C 168 kJ/m² ISO 179/1eU
ノッチ付きシャルピー衝撃強さ, +23°C 88 kJ/m² ISO 179/1eA
ノッチ付きシャルピー衝撃強さ, -30°C 9 kJ/m² ISO 179/1eA
熱的特性値単位テスト基準
ISO データ
溶融温度, 10°C/min 225 °C ISO 11357-1/-3
ガラス転移点, 10°C/min 70 °C ISO 11357-1/-2
荷重たわみ温度, 1.80 MPa 50 °C ISO 75-1/-2
荷重たわみ温度, 0.45 MPa 125 °C ISO 75-1/-2
線膨張係数, 平行 130 E-6/K ISO 11359-1/-2
線膨張係数, 直角 134 E-6/K ISO 11359-1/-2
その他の特性.値単位テスト基準
吸水率 0.45 % Sim. to ISO 62
密度 1250 kg/m³ ISO 1183
特殊な特性
成形加工法.
射出成形.
納入形状.
ペレット.
添加剤.
滑剤.
領域別の利用可能性
北アメリカ., ヨーロッパ., アジア/太平洋地域., 南・中央アメリカ., 近東/アフリカ
その他の情報
村遜速揃
To avoid hydrolytic degradation during processing, Vandar resins have to be dried to a moisture level equal to or less than 0.02%. Drying should be done in a dehumidifying hopper dryer capable of dewpoints <-30°F (-34°C) at 250°F (121°C) for 4 hours.
Rear Temperature 450-480(230-250) deg F (deg C)
Center Temperature 460-490(235-255) deg F (deg C)
Front Temperature 470-500(240-260) deg F (deg C)
Nozzle Temperature 470-510(240-265) deg F (deg C)
Melt Temperature 470-510(240-265) deg F (deg C)
Mold Temperature 100-200(40-95 deg F (deg C)
Back Pressure 0-50 psi
Screw Speed Moderate
Injection Speed Fast

Injection speed, injection pressure and holding pressure have to be optimized to the individual article geometry. To avoid material degradation during processing low back pressure and minimum screw speed have to be used. Overheating of the material has to be avoided, in particular for flame retardant grades. Up to 25% clean and dry regrind may be used.
Disclaimer
Copyright Altair Engineering GmbH. Altair Engineering GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.
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