应用:
各种工艺模压制品;密封件、护套、
膜片、波纹管、阀门、缓冲器、减震
器、胶鞋底;也适用于胶辊、印版、印
刷胶块、输送带、胶布、胶管、电缆
护套、刹车离合器衬里、开孔及闭孔
海绵橡胶、冲压垫和手套。
O-Ring Demolding Trials
• Specially designed, self deflashing 120 cavity
compression mold
• Cavities arranged in 2 sets of 60 to permit side by
side demolding evaluations
• O-ring cavities with high surface area to promote
demolding
difficulties
• Barwell extruder to make rod pre-form
• Loading frame to position pre-form
• Air line to blow parts off mold (no physical
DuPont Confidential
contact)
Test Conditions:
• Mold is cleaned thoroughly before testing
• Mold pressure = 110 bars
• Mold temperature = 190°C
• Cure time = 90 seconds
• Mold is not cleaned during test
No. of O-rings sticking to the mold is counted & reported
加工助剂18D
________________________________________
简介
18D可作为水溶液乳化剂,橡胶加工助剂或用于水处理的防腐剂。添加量依据不同用途而有所不同。
成分
十八胺
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物理性能 (非特定用途)
外观 :白色粉末
气味 :略带氨气的味道
密度 :0.81 g/cm3 (20 ℃)
沸点 : >300℃
熔点 :50~60℃
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包装
25kg/桶,内衬防潮袋。
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安全信息
产品对皮肤和眼睛及呼吸道都有性,故应避免眼睛和皮肤接触,如不小心接触,请用0.5% 醋酸溶液冲洗。
________________________________________
储存
产品必须保存于干燥通风处,避免阳光直晒。
Ethylene / Acrylic Elastomer
CHCH2CHCH2
x
CH CH2
C=O
OCH3y
R
C=O
OH Z
Developed and launched
in 1974 by DuPont.
Made in USA
DuPont Confidential
Low Temperature Damping
Better low temperature
properties than H-NBR,
FKM, etc.
Outstanding vibration
damping properties in a
wide temperature range.
Oil Cooler Hose Turbo Charger Hose Seal and Gasket Damper
Elastomer having good
balance of high/low temp
properties and oil
resistance, mainly used
in automotive
(2)耐液体性能
AEM对ATF(汽车自动转向液)、齿轮油、乙二醇/水混合液、柴油和煤油等有良好的抗耐性,但对燃油C、磷酸酯液压油、非矿物制动液、酯、酮和汽油的抗耐性较差。
(1)耐热老化性能
以拉断伸长率降低50%为衡量标准,AEM可在120℃下连续使用18个月,在170℃下连续使用6周。AEM的耐热老化性能大大优于氯磺化聚乙烯橡胶(CSM)和NBR。
产品规格和一般物理性能
品种 丙烯腈含量
(%)
门尼粘度(1)
ML (1+4) 100℃
密度
(克/立方
厘米)
稳定剂 外观 标准包装 备注
卡兰钠 2645 F 26 45 ± 5 0.96
卡兰钠 2865 F 28 65 ± 5 0.98
卡兰钠 3330 F 33 30 ± 3 0.98
卡兰钠 3345 F 33 45 ± 5 0.98
卡兰钠 3355 F 33 57 ± 5 0.98
卡兰钠 3370 F 33 70 ± 5 0.98
卡兰钠 33110 F 33 110 ± 10 0.98
卡兰钠 3950 F 38.5 50 ± 5 0.99
卡兰钠 4450 F 43.5 50 ± 5 1.00
卡兰钠 4975 F 48.5 75 ± 5 1.01
卡兰钠 E 3338 F
(52 phr DOP 充油)
22
(原胶含 34 ) 30 ± 8 0.98