巴陵石化熱塑性橡膠SEBS YH-503T/503
一、熱塑性橡膠SEBS YH-503/503T基本參數
1、外觀：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：線型；
4、拉伸強度（≥MPa）：25；
5、扯斷伸長率（≥%）：480；
6、300%定伸應力（≥Mpa）：6.0；
7、扯斷永久變形（≤%）：16
8、邵氏A硬度≥（A）：74；
9、甲苯溶液粘度（25℃、10%、Mpa.s）：600~6000；
10、揮發分（≤%）：0.7
11、加氫度（≥）：97
二、熱塑性橡膠SEBS-YH503/503T應用特點
YH-503分子量是線型SEBS中最高的，高填充下的力學性能優秀、與PP共混時形成的雙INP網絡完整，主要用于共混產品。YH—503有較好的力學性能和充油性能，YH-503主要用于共混彈性體的基礎材料，如各種包覆材料、密封條、抗振材料、道路標志油漆、其它彈性體的補強、塑料增韌改性等。YH-503在加工時可與大多數塑料共混，不同塑料對其最終制品的性能有不同的影響，如在YH-503共混材料中加入粉狀PPO時強化了苯乙烯與丁二烯的相分離，彈性體的耐溫性能、力學性能、剛性、表面的滑爽感明顯增強；在其中加入適量的α-甲基苯乙烯和丙烯***的共聚物時制品表面不粘。
三、熱塑性橡膠SEBS-YH503基礎配方
1、邵氏A10度彈性體配方：
YH—503
PP 5份
白油 70份
抗氧劑 1份
將上述物料經高速捏合機充油混勻，再加入雙螺桿擠出機（L/D≥32）于190~230℃之間造粒即可。
2、邵氏A75度彈性體：
YH—503 350份
PP 250份
白油 500份
此配方彈性體300%定伸5.2MPa、伸長率470%，可用于包覆材料。
以上配方可根據用戶實際需要加入0~20份鈣粉以降低成本。
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Baling Petrochemical thermoplastic rubber SEBS yh-503t / 503
1、 Basic parameters of thermoplastic rubber SEBS yh-503 / 503t
1. Appearance: white or light color, powder or even granular, free of mechanical impurities and oil stains.
2. Styrene content: 33% (weight, reference);
3. Structure: linetype;
4. Tensile strength (≥ MPa): 25;
5. Elongation at break (≥%): 480;
6. 300% constant extension stress (≥ MPa): 6.0;
7. Breaking permanent deformation (≤%): 16
8. Shore a hardness ≥ (a): 74;
9. Viscosity of toluene solution (25 ℃, 10%, MPa. S): 600 ~ 6000;
10. Volatile matter (≤%): 0.7
11. Hydrogenation degree (≥): 97
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2、 Application characteristics of thermoplastic rubber sebs-yh503 / 503t
Yh-503 has the highest molecular weight among linear SEBS, excellent mechanical properties under high filling and complete double InP network formed when blending with pp. it is mainly used for blending products. Yh-503 has good mechanical properties and oil filling performance. Yh-503 is mainly used for the basic materials of blended elastomers, such as various coating materials, sealing strips, anti vibration materials, road sign paint, reinforcement of other elastomers, toughening and modification of plastics, etc. Yh-503 can be blended with most plastics during processing, and different plastics have different effects on the properties of its final products. For example, when powdered PPO is added to yh-503 blend, the phase separation of styrene and butadiene is strengthened, and the temperature resistance, mechanical properties, rigidity and surface smoothness of the elastomer are significantly enhanced; Add an appropriate amount of α- The copolymer of methylstyrene and propylene * * * does not stick to the surface of the product.
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3、 Basic formula of thermoplastic rubber sebs-yh503
1. Shore A10 degree elastomer formula:
YH—503
PP 5 copies
70 portions of white oil
1 antioxidant
Fill the above materials with oil and mix them evenly through the high-speed kneader, and then add them into the twin-screw extruder (L / D ≥ 32) to granulate between 190 ~ 230 ℃.
2. Shore A75 degree elastomer:
Yh-503 350 copies
PP 250 copies
500 portions of white oil
The formula elastomer has 300% constant elongation of 5.2mpa and elongation of 470%, which can be used for coating materials.
The above formula can add 0 ~ 20 parts of calcium powder according to the actual needs of users to reduce the cost. | 
