巴陵石化熱塑性橡膠SEBS YH-561T/561
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一、熱塑性橡膠SEBS-YH561/561T基本參數
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：混合型；
4、拉伸強度（≥MPa）：26.5；
5、扯斷伸長率（≥%）：490；
6、300%定伸應力（≥Mpa）：6.5
7、扯斷永久變形（≤%）：20；
8、、邵氏A硬度≥（A）：80；
9、、甲苯溶液粘度（25℃、10%、Mpa.s）：1200；
10、揮發分（≤%）：0.7
11、加氫度（≥）：97
二、熱塑性橡膠SEBS-YH561應用特點
YH-561是專為低硬度彈性體制品而開發的牌號，其突出的特點是在高充油率下的具有較高的彈性模量，彈性回復優于其它牌號。在相同的充油率下，采用YH-561生產的制品表面更加干爽、硬度高，即使在600%以上的應變下也具有優秀的彈性回復，拉伸強度適中，可滿足各種低硬度彈性體的要求，主要用于軟質玩具、減振片材等。也可用于較高硬度的彈性體共混生產。
三、熱塑性橡膠SEBS-YH561典型應用配方：
1、將1份YH-561與4份15#白油混合、直接注塑的制品典型性能如下：
扯斷拉伸強度：2.5MPa
邵氏A硬度：8
扯斷伸長率：1000%
扯斷永久變形：＜20%
600%彈性回復：＞98%
壓縮永久變形：＜5%
制品透明、表面無油潤感。
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Baling Petrochemical thermoplastic rubber SEBS yh-561t / 561
1、 Basic parameters of thermoplastic rubber sebs-yh561 / 561t
1. White or light color, powder or uniform granular, free of mechanical impurities and oil stains.
2. Styrene content: 33% (weight, reference);
3. Structure: mixed type;
4. Tensile strength (≥ MPa): 26.5;
5. Elongation at break (≥%): 490;
6. 300% constant elongation stress (≥ MPa): 6.5
7. Breaking permanent deformation (≤%): 20;
8. shore a hardness ≥ (a): 80;
9. viscosity of toluene solution (25 ℃, 10%, MPa. S): 1200;
10. Volatile matter (≤%): 0.7
11. Hydrogenation degree (≥): 97
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2、 Application characteristics of thermoplastic rubber sebs-yh561
Yh-561 is a brand specially developed for low hardness elastomer products. Its outstanding feature is that it has high elastic modulus under high oil filling rate, and its elastic recovery is better than other brands. Under the same oil filling rate, the products produced by yh-561 have more dry surface and high hardness. Even under the strain of more than 600%, they also have excellent elastic recovery and moderate tensile strength, which can meet the requirements of various low hardness elastomers. They are mainly used for soft toys, vibration damping sheets, etc. It can also be used in the blending production of elastomer with high hardness.
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3、 Typical application formula of thermoplastic rubber sebs-yh561:
1. The typical properties of products with 1 part yh-561 mixed with 4 parts 15# white oil and directly injected are as follows:
Tensile strength at break: 2.5MPa
Shore a hardness: 8
Elongation at break: 1000%
Breaking permanent deformation: ＜ 20%
600% elastic recovery: ＞ 98%
Compression set: ＜ 5%
The product is transparent and the surface is free of oil.
