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聯(lián)系人：肖先生
手機(jī)：13549213581
電話：0769-87795123
傳真：0769-87795123
Q Q：15397858
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AEM Ultra LT AEM/美國杜邦/ 塑料是東莞市雙幫塑膠原料有限公司常年銷售的塑料，因?yàn)樗芰蟽r格行情每天都有新變化前天的報(bào)價不等于今天的報(bào)價。本公司銷售的所有原料保證是原廠原包,隨料可以提供生產(chǎn)廠商提供的物性表、SGS報(bào)告，提供原料注塑加工工程中可能出現(xiàn)的各種異常現(xiàn)象解決方法，塑料牌號太多，本網(wǎng)站沒有提供的本公司也有代理，詳情請咨詢本公司相關(guān)業(yè)務(wù)人員0769-87795123
13549213581肖生
耐低溫, 耐熱性高, 無鹵, 墊圈, 管道, 密封, 汽車領(lǐng)域的應(yīng)用, 清晰/透明, 擠出, 壓縮模塑, 樹脂傳遞成型, 注射成型
Vamac® Ultra LT
乙烯丙烯酸彈性體
DuPont Performance Elastomers
Technical Data
產(chǎn)品說明
DuPont™ Vamac® Ultra LT polymer has improved low-temperature properties compared to Vamac® G. The Tg for Vamac® Ultra LT polymer is about 12°C lower than the Tg for Vamac® G. A compound made from Vamac® Ultra LT with 20 phr of plasticizer has a Tg of -54°C. A compound without any plasticizer has a Tg of -40°C and that compound maintains that Tg after aging in air for six weeks at 150°C or for one week at 175°C.
The fluid resistance of Vamac® Ultra LT compounds is not as good as the G/GLS compounds, but resistance can be improved by blending with Vamac® G. The blends with G will have intermediate low-temperature performance and intermediate fluid resistance.
The polymer is typically cured with a diamine. It can also be cured with a peroxide. The gum elastomer has a low level of a processing aid and a nominal specific gravity of 1.03. The polymer has a mild acrylic odor and the storage stability of the polymer is excellent.
Cured compounds made from Vamac® Ultra LT have a good combination of properties including a wide operating window for end use temperatures. A compound with no plasticizer has a temperature window of -40°C up to 165°C and the compound can withstand short term temperature spikes up to 200°C. The low temperature properties can be improved by the addition of a plasticizer, and with 20 phr of plasticizer the initial Tg is about -54°C. The cured compounds are typically rated as class E for heat resistance using the ASTM D2000 system and this means that they will pass a heat rating test of 70 hours at 175°C (347°F). They will also pass a six week air aging requirement at temperatures as high as 165°C (329°F).
The fluid resistance of a cured compound depends on the carbon black and plasticizer level. A typical value for volume swell in IRM 903 fluid after aging for 168 hr at 150°C (302°F) is about 90%.
The compounds made from Vamac® Ultra LT have much lower volume swell in transmission fluid and in engine oils. The volume swell in Service Fluid 105 (1 week/150°C) is about 50% and the volume swell in ASTM #1 (1 week/150°C) is about 7%.
Most of the newer engine oils, transmission fluids, and high temperature greases are more synthetic and have higher aliphatic content than conventional test oils. The newer fluids also have much lower or no aromatic content. The volume swell in IRM903 may not be a good predictor for performance in the newer fluids.
The compression set values for compounds based on Vamac® Ultra LT were measured after one week at 150°C and the range in values is from 20 to 40%. The results depend on the curative package, the level of carbon black and the level of plasticizer.
CSR (Compressive Stress Relaxation) tests run on Vamac® Ultra LT compounds exhibit very good properties for six weeks at 150°C in engine oils. The percent retained sealing force is a relatively high value and this is probably due to the relatively high volume swell. The Vamac® Ultra LT compounds have higher values compared to the Vamac® G compounds which in turn have higher retained sealing forces compared to Vamac® GLS compounds.
The properties of Vamac® Ultra LT compounds make them well suited for a wide range of automotive applications, including, molded boots, powertrain seals and gaskets, rocker cover seals, transmission oil coolant hoses, power steering hoses, turbocharger hoses, crankcase ventilating tubes, coverings for fuel and coolant hoses, O-rings, grommets and crankshaft dampers.
Vamac® Ultra LT is a halogen free polymer and does not decompose to give off corrosive gases when exposed to flame. It can be used for flame retardant, low-smoke, non-halogen wire and cable jackets and in non-halogen, low smoke flooring.
Vamac® Ultra LT compounds are well suited for injection, transfer or compression molding. They also can be extruded.
總體
材料狀態(tài) • 已商用：當(dāng)前有效
資料 1 • Technical Datasheet (English)
供貨地區(qū) • 北美洲 • 歐洲
添加劑 • 加工助劑
性能特點(diǎn) • 耐低溫 • 耐熱性，高 • 無鹵
用途 • 墊圈 • 管道 • 密封
• 墊圈 • 管道 • 汽車領(lǐng)域的應(yīng)用：
外觀 • 不透明 • 清晰/透明
形式 • 包
加工方法 • 擠出 • 壓縮模塑
• 樹脂傳遞成型 • 注射成型
Vamac® Ultra LT
乙烯丙烯酸彈性體
DuPont Performance Elastomers
物理性能 額定值單位制 測試方法
門尼粘度 ASTM D1646
121°C 3 8MU
121°C 12MU
ML 1+4, 100°C 4 11MU
ML 1+4, 100°C 3 23MU
ML 1+4, 100°C 37MU
彈性體 額定值單位制 測試方法
拉伸應(yīng)力 3 (100%應(yīng)變) 3.10MPa ASTM D412
抗張強(qiáng)度 ASTM D412
屈服 3 11.0MPa
屈服 14.3MPa
伸長率 3 (斷裂) 360% ASTM D412
撕裂強(qiáng)度 5 ASTM D624
-- 3 27.7kN/m
-- 28.2kN/m
壓縮永久變形 ASTM D395
150°C, 70.0 hr 3 25%
150°C, 70.0 hr 22%
150°C, 138 hr 31%
150°C, 168 hr 3 35%
硬度 額定值單位制 測試方法
硬度計(jì)硬度 ASTM D2240
邵氏 A 3 63
邵氏 A 60
熱性能 額定值單位制 測試方法
玻璃轉(zhuǎn)化溫度 ASTM D3418
-- 3 -54.0°C
-- -42.0°C
玻璃化轉(zhuǎn)變溫度 ASTM D3418
DMA Results - dan delta 6 -41°C
DMA Results - dan delta 7 -32°C
DMA Results - loss modulus 6 -45°C
DMA Results - loss modulus 7 -37°C
Static O-Ring test 6 -63°C
Static O-Ring test 7 -55°C
TR10 -39°C
TR10 3 -45°C
TR30 3 -33°C
TR30 -32°C
老化 額定值單位制 測試方法
Change in Glass Transition Temperature
-- 8 -46°C ASTM D471
-- 9 -52°C ASTM D471
-- 10 -44°C ASTM D471
-- 11 -51°C ASTM D471
150°C 12 -47°C ASTM D573
150°C 13 -42°C ASTM D573
175°C 14 -43°C ASTM D573
175°C 15 -41°C ASTM D573
Vamac® Ultra LT
乙烯丙烯酸彈性體
DuPont Performance Elastomers
補(bǔ)充信息 額定值單位制 測試方法
MDR ASTM D5289
MH : 177°C 16 9.63dNm
MH : 177°C 17 7.83dNm
ML : 177°C 16 0.410dNm
ML : 177°C 17 0.370dNm
t50 : 177°C 16 2.1min
t50 : 177°C 17 2.1min
t90 : 177°C 16 9.4min
t90 : 177°C 17 8.9min
ts2 : 177°C 17 1.4min
ts2 : 177°C 16 1.2min
Mooney Scorch ASTM D1646
t10 : 121°C 14.8min
t10 : 121°C 3 17.4min
t3 3 10.1min
t3 : 121°C 9.2min
揮發(fā)性 0.6wt% 內(nèi)部方法
東莞市雙幫塑膠原料有限公司大量銷售塑料AEM Ultra LT AEM/美國杜邦/ 因?yàn)樗芰蟽r格行情每天都有新的變化前天的報(bào)價不等于今天的報(bào)價。如果需要新的價格請電：13549213581，肖生。
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