利用陶瓷工业废料制备再生陶瓷墙地砖

以废弃陶瓷抛光砖粉、陶瓷墙地砖烧成废料为原材料,硼砂作辅助熔剂制备再生陶瓷墙地砖,研究陶瓷抛光砖粉的高温烧结性能及其对再生墙地砖强度的影响,采用SEM测试分析陶瓷抛光砖粉对再生陶瓷制品微观结构的影响。结果表明:抛光砖粉含玻璃相、颗粒细小,有利坯体烧结密实;复掺少量抛光砖粉和硼砂,可提高制品强度。在硼砂掺量为0.5%,陶瓷抛光砖粉为2%、烧成废料为25%的实验条件下,所得再生陶瓷制品强度最高。该方法具有陶瓷工业废料的综合利用率高,制得的再生陶瓷制品强度高等特点。     

糖厂废弃物糖滤泥研制多孔陶瓷材料

对糖滤泥的性能进行分析和研究,设计加入黏土制备多孔陶瓷。结果表明:糖滤泥主要成分是碳酸钙,优化得出糖滤泥与黏土的比例1∶2,最佳温度1 000℃下烧结1.5 h,得到主晶相为莫来石、石英和钙长石,孔径尺寸为1~10μm,孔隙率为26.38%,吸水率为17.30%,机械强度为22~26 MPa的多孔陶瓷,该多孔陶瓷有希望用于废水的过滤和分离。     

陶瓷刀并非隐形刀——安检设备对陶瓷刀的识别能力分析

本文针对陶瓷刀的普及带来的安检问题进行了分析,对现有的几类行李检查和人体检查设备检查陶瓷刀的效果进行了试验,包括通道式X射线安全检查设备、金属探测门、采用X射线背散射技术和毫米波技术的人体检查设备,分析了为使金属探测门可以探测到陶瓷刀产品应采取的应对措施,提出了安检设备应对陶瓷刀的可行性方案。     

芳纶陶瓷复合材料防弹性能的研究

本文通过对陶瓷种类及厚度、多枪弹击、无纬布层数、制备工艺的研究,确定上述参数对芳纶陶瓷复合材料防弹性能的影响。结果显示当8mm反应型碳化硅陶瓷与36层防弹背板材料通过聚烯烃胶粘剂粘结时,芳纶复合防弹材料的防弹性能最优,并且冷压固化工艺制备的防弹复合材料更优,可靠性更高。     

麦秸基木质陶瓷/凹凸棒石复合材料制备与性能表征

介绍了以麦秸秆、凹凸棒石为原料,以酚醛树脂、固化剂为辅料,按照不同的配比进行混合、干燥、热压,而后采用高温烧结工艺,制备新型复合碳材料。试验制备了各种不同原料配比以及不同烧结温度下的材料,并对材料的物理强度、密度、气孔率、强度、电阻率等性能进行了测试,对其性能表征、形成机理和形成规律进行分析,初步探讨了原料选择、原料配比、碳化温度等参数对制备工艺以及复合材料性能的影响,确定了当麦秸秆∶凹凸棒石=2∶1和3∶1,温度为700～800℃时,材料的各物理性能较为理想。实验证明麦秸秆为原材料制备凹凸棒石的可行性,为麦秸秆的资源化利用、凹凸棒石的应用以及木质陶瓷复合材料的研究开辟了新的研究方向。     

应用RP技术快速制造金属/陶瓷零件和模具

详细归纳、总结了目前己经成功用于制造金属 /陶瓷零件的各种方法 ,结合具体研究实例 ,依据转换法 (Transfer)和间接法 (Indirect)两大类 ,分类讨论了用RP技术制造金属 /陶瓷零件和模具方法。首先 ,根据转换法制造过程的特点 ,分类叙述了其成形工艺 ,并对该方法的特点和寿命进行了评判。对间接法 ,根据不同的成形系统 ,总结了成形金属 /陶瓷件和模具的最新进展。最后 ,提出了未来研究和发展的方向。     

专利资讯

正专利名称:回收聚氨酯硬泡混凝土复合自保温砌块专利申请号:CN201320448711.6公开号:CN203412175U申请日:2013.07.26公开日:2014.01.29申请人:江苏绿源新材料有限公司本实用新型公开了一种回收聚氨酯硬泡混凝土复合自保温砌块,包括砌块体,砌块体上设置三排平行的矩形盲孔,中间一排盲孔中充填聚氨酯泡沫。本实用新型结构合理,利用废旧PU颗粒作为轻骨料而制成自保温砌块,具有密度低、     

陶瓷行业煤焦油处理处置方法探讨

陶瓷行业在生产过程中将会产生大量的废弃煤焦油,煤焦油的处理较为困难。但是煤焦油如果不经过妥善处理而任意排放会对环境造成巨大的危害,不仅容易产生爆炸、而且会污染土壤、水源,威胁到动植物的生命安全,引起多种人体疾病,甚至可能致癌,因此对煤焦油的处理的研究是一项重点工程。     

Effects of free iron oxyhydrates and soil organic matter on copper sorption-desorption behavior by size fractions of aggregates from two paddy soils

Effects of free iron oxyhydrates (Fed) and soil organic matter (SOM) on copper (Cu2+) sorption-desorption behavior by size fractions of aggregates from two typical paddy soils (Ferric-Accumulic Stagnic Anthrosol (Soil H) and Gleyic Stagnic Anthrosol (Soil W)) were investigated with and without treatment of dithionite-citrate-bicarbonate and of H2O2. The size fractions of aggregates were obtained from the undisturbed bulk topsoil using a low energy ultrasonic dispersion procedure. Experiments of equilibrium sorption and subsequent desorption were conducted at soil water ratio of 1:20, 25℃. For Soil H, Cu2+ sorption capacity of the DCB-treated size fractions was decreased by 5.9% for fine sand fraction, by 40.4% for coarse sand fraction, in comparison to 2.9% for the bulk sample. However, Cu2+ sorption capacities of the H2O2-treated fractions were decreased by over 80% for the coarse sand fraction and by 15% for the clay-sized fraction in comparison to 88% for bulk soil. For Soil W, Cu2+ sorption capacity of the DCB-treated size fraction was decreased by 30% for the coarse sand fraction and by over 75% for silt sand fraction in comparison to 44.5% for the bulk sample. Cu2+ sorption capacities of the H2O2-treated fractions were decreased by only 2.0% for the coarse sand fraction and by 15% for the fine sand fraction in comparison to by 3.4% for bulk soil. However, Cu2+ desorption rates were increased much in H2O2-treated samples by over 80% except the clay-sized fraction (only 9.5%) for Soil H. While removal of SOM with H2O2 tendend to increase desorption rate, DCB- and H2O2-treatments caused decrease in Cu2+ retention capacity of size fractions. Particularly, there hardly remained Cu2+ retention capacity by size fractions from Soil H after H2O2 treatment except for clay-sized fraction. These findings supported again the dominance of the coarse sand fraction in sorption of metals and the preference of absorbed metals bound to SOM in differently stabilized status among the size fractions. Thus, enrichment and turnover of SOM in paddy soils may have great effects on metal retention and chemical mobility in paddy soils.