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本文就无机粉体改性材料环境友好材料的定义及研发方向提出作者的见解,通过自身的科研,从环境友好材料的角度系统研究无机粉体改性塑料环境友好材料的综合性能,论证了无机粉体改性材料环境友好材料是一类经济性、功能性和环境协调性有机统一的材料,探讨了“可环境消纳助剂”可强化无机粉体改性塑料的环境消纳的特性;重点介绍了无机粉体的筛选原则及无机粉体表面改性技术的最新进展,认为无机粉体表面原位组合化学改性和具有配位功能的稀土偶联剂可有效地提高无机粉体改性塑料的刚性和韧性;呼吸加快推进提高这一新型改性材料产业化的技术水平,将“好的价格性能比”和具有可环境消纳特性的“光钙型多功能环境友好塑料”作为无机粉体改性环境友好材料的发展重点,同时提出“光钙型多功能环境友好材料”是狭义上的无机粉体改性塑料环境友好塑料,该技术产品已成为治理塑料“白色污染”的主流产品之一。 相似文献
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环境友好塑料材料的开发应用 总被引:1,自引:0,他引:1
从塑料与环保协调发展的角度出发,论述了环境友好塑料材料的定义及研究开发方向,探讨了使塑料材料成为耐用的,好的价格性能比的,易于清洁生产的,可回收利用和可环境消纳的方法和途径。总结了目前国内外降解塑料的开发动态,强调了开发的可环境消纳塑料必须适应垃圾的可堆肥,可焚烧,可降解的综合处理方式,着重介绍了几种可提高降解塑料的降解可控性,彻底性和扩宽应用领域的新技术,首次报道了可环境消纳专用树脂的技术特点和市场前景。 相似文献
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无机粉体改性塑料环境友好材料的环境协调性研究 总被引:6,自引:2,他引:6
从环境友好材料的角度系统研究无机粉体改性塑料环境友好材料的综合性能,论证了无机粉体改性塑料环境友好材料是一类经济性、功能性和环境协调性有机统一的材料,探讨了"可环境消纳助剂"可强化无机粉体改性塑料的环境消纳特性;重点介绍了无机粉体的筛选原则及环境协调性,总结了无机粉体改性塑料环境友好材料仍然存在的缺陷及今后的对策,强调要加快推进提高这一新型改性塑料材料产业化的技术水平;明确了"光钙型多功能环境友好塑料"是狭义上的无机粉体改性塑料环境友好塑料,该技术产品已成为治理塑料"白色污染"的主流产品之一;提出今后"开发性价比高"的无机粉体改性塑料和"具有可环境消纳特性"的"光钙型多功能环境友好塑料"将作为无机粉体改性塑料环境友好材料发展重点的观点。 相似文献
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福建师范大学与福建省改性塑料技术开发基地合作,采用未经任何处理的树脂粉末,根据不同的材料和用途,研制出多种牌号的可环境消纳专用树脂,并以这种树脂为原料开发出一系列可环境消纳的塑料制品。据介绍,可环境消纳聚烯烃塑料是一种新型的环保材料。制定有统一的环保标准,根据我国垃圾的处理工 相似文献
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从环境友好材料的角度系统研究无机粉体改性塑料环境友好材料的综合性能,论证了无机物体改性塑料环境友好材料是一类经济性、功能性和环境协调性有机统一的材料,探讨了"可环境消纳助剂"可强化无机粉体改性塑料的环境消纳特性;重点介绍了无机粉体的筛选原则及环境协调性,总结了无机粉体改性塑料环境友好材料仍然存在的缺陷及今后的对策,强调要加快推进提高这一新型改性塑料材料产业化的技术水平;明确了"光钙型多动能环境友好塑料"是狭义上的无机粉体改性塑料环境友好塑料,该技术产品已成为治理塑料"白色污染"的主流产品之一;提出今后"开发性价比高"的无机粉体改性塑料和"具有可环境消纳特性"的"光钙型多功能环境友好塑料"将作为无机粉体改性塑料环境友好材料发展重点的观点。 相似文献
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The transport properties of ionic liquids (ILs) are crucial properties in view of their applications in electrochem-ical devices. One of the most important advantages of ILs is that their chemical–physical properties and conse-quently their bulk performances can be well tuned by optimizing the chemical structures of their ions. This will require elucidating the structural features of the ions that fundamentally determine the characteristics of the nanostructures and the viscosities of ILs. Here we showed for the first time that the“rigidity”, the order, and the compactness of the three-dimensional ionic networks generated by the anions and the cation head groups determine the formation and the sizes of the nanostructures in the apolar domains of ILs. We also found that the properties of ionic networks are governed by the conformational flexibility and the symmetry of the anion and/or the cation head group. The thermal stability of the nanostructures of ILs was shown to be con-trolled by the sensitivity of the conformational equilibrium of the anion to the change of temperature. We showed that the viscosity of ILs is strongly related to the symmetry and the flexibility of the constitute ions rather than to the size of the nanostructures of ILs. Therefore, the characteristics of the nanostructures and the viscosities of ILs, especially the thermal stability of the nanostructures, can be fine-tuned by tailoring the symmetry and the conformational flexibility of the anion. 相似文献
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Investigation of the effects of fatty acids on the compressive strength of the concrete and the grindability of the cement 总被引:1,自引:0,他引:1
In cement industry, a great energy consumption has been observed during grinding of clinker. To reduce this consumption, some waste products have been used as grinding aids.In this investigation, the effects of sunflower oil (SO), oleic acid (OA), stearic acid (SA), myristic acid (MA) and lauric acid (LA) on the fineness and strength of the cement have been examined. These aids were added into clinker in certain ratios based on the cement clinker weight and the grinding has been done for a definite time at the same condition.All of the fatty acids used increased the fineness as compared with the cement without the grinding additives. SO and OA decreased the strength significantly, LA decreased it to a lesser extent and SA increased it definitely according to the common cement. But MA did not alter the strength of the cement as much as SA. In addition, the covering of the balls influences the grinding of cement clinker unfavourably. 相似文献
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Polyurethaneureas (PUU), which were synthesized from 4,4′-diphenylmethane diisocyanate (MDI), poly(ethylene glycol) (PEG), and 3,5-diaminobanzoic acid (DABA), were used as polyelectrolytes in this study. Differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT-IR) were used to monitor the effect of the various kinds of PEG on the changes in morphology of PUU electrolytes corresponding to the concentration of lithium perchlorate (LiClO4) dopants. The results of DSC and FT-IR indicate the Li+ ions coordinate with the soft and hard segments. Additionally, the crystallinity of the PEG soft segment and the ordered hydrogen-bonded urea carbonyl groups decreased with increasing salt concentration. Impedance spectroscopy (IS) measurements show that the PUU electrolyte with the high phase separation degree has the high ionic conductivity. The hard-segment Tg and the soft-segment Tm influence the conductivity behavior of polyelectrolytes with increasing measurement temperature. 相似文献
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In spinning basalt fibres, the drafting force is in the same range as in spinning of glass fibres. The effect of the drafting
force can not be considered in the calculation for the strength and rigidity of the bottom of the spinneret.
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Translated from Khimicheskie Volokna, No. 5, pp. 47–50, September–October, 2007. 相似文献