丁腈橡膠(NBR)具有高極性、耐磨性、耐酸、鹼性、耐熱性、粘接力強。然而，丁腈橡膠最大特點在於其耐油性極佳，廣泛用於制各種耐油橡膠制品、耐油墊圈、墊片、套管、軟包裝、軟膠管、印染膠輥、電纜膠材料等，在汽車、航空、石油、複印等行業中成爲必不可少的彈性材料。碳黑為多重功能之強化材料，廣泛地使用於橡膠材料，形成功能性複合橡膠。由於二氧化矽具有較高的表面活性，與碳黑相比其粒子更細，比表面積更大能增強固態體系的內聚力，可作為橡膠補強劑與橡膠混合後，能提升膠料之拉伸強度、彈性及透明效果。
本研究將探討NBR常用的硫磺架橋系統用以不同比例碳黑/SiO2填充，以及探討碳黑/SiO2比例對架橋速度的影響，熱壓成型後，測試其試片基本物性，以老化試驗探討隨著的碳黑/SiO2比例不同對於耐老化程度的影響。
結果顯示最佳之二氧化矽為添加量20至30phr(總量60phr)並用的NBR複合填充體系，其硫化速度快且加工安全性好，且耐老化程度與永久壓縮變形率與黑煙體系相當，並有最好的綜合性能。

Nitrile rubber (NBR) has a high polarity, wear resistance, acid, alkali, heat resistance, strong adhesion. However, the most prominent feature of nitrile rubber is its excellent oil resistance, widely used in the system of various oil-resistant rubber products, oil washers, gaskets, casing, flexible packaging, soft hose, printing and dyeing roller, cable plastic materials, , Oil, copy and other industries to become essential elastic material. Carbon black for the multi-function of the strengthening material, widely used in rubber materials, the formation of functional composite rubber. Because the SiO2 has a high surface activity, compared with the carbon black particles smaller, larger surface area can enhance the cohesion of solid-state system can be used as a rubber reinforcing agent mixed with rubber, can Enhance the tensile strength, elasticity and transparency of the compound.
In this study, the sulfur-bridging system commonly used in NBR is used to fill carbon black / SiO2 in different proportions, and the effect of carbon black / SiO2 ratio on the speed of bridge is discussed. After hot pressing, the basic properties of the test piece are tested. The aging test explores the effects of different carbon black / SiO2 ratios on the degree of aging resistance.
The results show that the best silica is an NBR composite filling system with an addition amount of 20 to 30 phr (total 60 phr), which has a fast curing speed and a good processing safety, and the degree of aging resistance and the permanent compression deformation rate are comparable to those of the black smoke system , And have the best overall performance.
 

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