巴陵石化熱塑性橡膠SEBS YH-604/604T
一、基本性能(典型值)
1、白色或淺色,呈粉末或均勻粒狀,不含機械雜質及油污。
2、苯乙烯含量:33%(重量、參考);
3、結構:星型;
4、拉伸強度(≥MPa):30;
5、扯斷伸長率(≥%):530;
6、300%定伸應力(≥Mpa):5.8;
7、扯斷永久變形(≤%):40;
8、邵氏A硬度≥(A):73-83;
9、甲苯溶液粘度(25℃、10%、Mpa.s):2200;
10、揮發分(≤%):0.7
11、加氫度(≥%):97
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二、應用
YH-604與其它牌號相比,其耐壓縮永久變形性能優秀、高填充下彈性體的力學性能和熔體流動性能均衡、在-50~90℃的溫度范圍內保持良好的柔韌性和硬度,可以加工各種復雜結構的制件,適合于生產建筑、汽車和電器的密封條。
以100份YH-604、120份26#白油、40份聚丙烯共混得到彈性體的典型性能如下:
扯斷拉伸強度:9.0MPa
邵氏A硬度:60
扯斷伸長率:700%
300%定伸應力:3.0MPa
70℃×24小時壓縮永久變形:<35%
200℃、2.25kg碼(口模2.06mm)熔體流動速率g/10min,0.6
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Baling Petrochemical thermoplastic rubber SEBS yh-604 / 604T
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1、 Basic performance (typical value)
1. White or light color, powder or uniform granular, free of mechanical impurities and oil stains.
2. Styrene content: 33% (weight, reference);
3. Structure: star type;
4. Tensile strength (≥ MPa): 30;
5. Elongation at break (≥%): 530;
6. 300% constant elongation stress (≥ MPa): 5.8;
7. Breaking permanent deformation (≤%): 40;
8. Shore a hardness ≥ (a): 73-83;
9. Viscosity of toluene solution (25 ℃, 10%, MPa. S): 2200;
10. Volatile matter (≤%): 0.7
11. Hydrogenation degree (≥%): 97
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2、 Apply
Compared with other brands, yh-604 has excellent compression permanent deformation resistance, balanced mechanical properties and melt flow performance of elastomer under high filling, and maintains good flexibility and hardness in the temperature range of - 50 ~ 90 ℃. It can process parts with various complex structures and is suitable for producing sealing strips for buildings, automobiles and electrical appliances.
The typical properties of the elastomer obtained by blending 100 phr yh-604, 120 phr 26# white oil and 40 phr polypropylene are as follows:
Tensile strength at break: 9.0MPa
Shore a hardness: 60
Elongation at break: 700%
300% constant extension stress: 3.0MPa
70℃ × 24-hour compression set: < 35%
200 ℃, 2.25kg yard (die 2.06mm), melt flow rate G / 10min, 0.6