有机硫化物极压抗磨添加剂的研制

根据高含硫原油中有机硫化物的特点,在实验室内切取合适馏分,利用尿素脱蜡方法并选择适当的活化剂,进行脱蜡精制处理,使其凝点降到0℃以下,然后采用酸、白土精制进行脱色、脱臭,制得合格的极压抗磨添加剂产品(以下简称HS添加剂)。     

单组分室温硫化硅橡胶的配制(六)

详细介绍了能粘聚烯烃塑料、乙丙橡胶、硅橡胶、氯化聚乙殊及表面消光的脱酮肟型单组分室温硫化(RTV—1)硅橡胶胶粘剂和阻燃、导电、低臭味、深层快硫化型脱酮肟型RTV—1硅橡胶密封剂的配制方法。     

哈氏合金设备的设计与施工

介绍哈氏合金的类型及耐腐蚀性能,从设计、成型、焊接和机械加工等方 面提出了制造哈氏合金设备的有关注意事项。     

涤纶混纺针织物面料的抗起毛起球整理

将制备的抗起毛起球整理剂WPUA应用在涤毛混纺针织物和涤棉混纺针织物上,结果表明:当WPUA质量浓度为80 g/L、焙烘温度120℃、焙烘时间3 min时,涤毛针织物抗起毛起球等级提高了4级,涤棉针织物抗起毛起球等级提高了3级;织物手感和白度与原织物等级相当;静电压半衰期明显降低,抗静电性能得到提高;与目前市售的高效抗起毛起球整理剂的各项性能相当。扫描电镜表明:经整理后的织物,纤维尾端被黏附在纱线的表面,织物表现出抗起毛起球的特征。     

用氢化丁腈橡胶制作橡胶密封制品

阐述了氢化丁腈橡胶的基本性能;通过对硫化体系、碳黑补强剂、防老剂等进行选择性试验,确定了橡胶配方;通过工艺试验,确定了产品加工工艺条件;产品性能试验及应用结果表明氢化丁腈橡胶具有良好的耐热、耐油、耐臭氧性能和低压缩永久变形性,其性能与氟橡胶相近;用氢化丁腈橡胶可替代氟橡胶制作汽车发动机曲轴油封.     

Mechanical and anticorrosion properties of furan/epoxy‐based basalt fiber‐reinforced composites

A furan/epoxy blend applicable to composite manufacture was studied and corresponding basalt fiber‐reinforced composites were prepared. The processability, mechanical properties, and reasons for the improved mechanical properties of this blend were investigated by rheology machine, mechanical testing machine, and scanning electron microscopy. With excellent processability, furan/epoxy was suitable for manufacturing composites. Furan/epoxy with the ratio of 5/5 showed the best properties, and the impact strength, flexural strength and flexural modulus were 15.43 kJ/m², 102.81 MPa, and 3209.40 MPa, respectively. The river‐like fracture surface of the furan/epoxy system was well consistent with the mechanical properties. The mechanical and anti‐corrosive properties of basalt fiber‐reinforced furan/epoxy composites were also studied. The mechanical properties of composites changed the same as those of furan/epoxy matrix did. Furan resin effectively improved the anti‐acid but not anti‐alkali property of composites, probably because furan could be cured in acidic condition and basalt fiber was resistant to acid and alkali. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 44799.     

Silver‐coated copper nanowires with improved anti‐oxidation property as conductive fillers in low‐density polyethylene

Silver‐coated copper nanowires (AgCuNWs) are prepared by chemical plating method with copper nanowires (CuNWs) and Ag‐amine reagent. The prepared AgCuNWs with silver content of 66.52 wt.%, diameter 28–33 nm exhibited improved anti‐oxidation behaviour. The silver coating on AgCuNWs can effectively reduce the formation of copper oxide under room temperature. The temperature at which nanowires begin to gain weight can be improved from 85 to 230°C and the maximum weight gain can be decreased from 20.3% to 3.2% by applying silver coating. The volume electrical resistivity of the AgCuNWs filled low‐density polyethylene nanocomposites is lower than that of the CuNWs filled low‐density polyethylene nanocomposites with same volume percentage of fillers because the silver content in the AgCuNWs is not oxidised during compression moulding. © 2012 Canadian Society for Chemical Engineering     

数显仪表在生产中的抗干扰措施探讨

着重分析了在生产中使用数显仪表干扰产生的原因，列举了抗干扰的措施和在生产实践中取得的成绩。     

动力煤选煤厂设计中应注意的有关问题

针对动力煤选煤厂普遍遇到的提高筛分效率、稳定末煤灰分和块煤入洗量、增加系统灵活性和完善煤泥水系统等问题提出了一些见解。     

微机多功能内胎硫化过程监控仪的研制

介绍一种新型微机多功能内胎硫化过程控仪是其功能、特点、硬件结构和软件设计。该机不仅功能多,而且干扰性强,可对４０台内胎硫化机的生产全过程进行全天候质量监控,能及时发现并记录内胎硫化中的欠硫和过硫现象,实践证明该仪器对质量管理自动化非常有效。