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多孔玻璃

多孔玻璃的相关文献在1984年到2022年内共计249篇,主要集中在化学工业、一般工业技术、化学 等领域,其中期刊论文79篇、会议论文6篇、专利文献310129篇;相关期刊53种,包括长春理工大学学报(自然科学版)、西北工业大学学报、材料导报等; 相关会议6种,包括长三角地区科技论坛激光分论坛暨上海市激光学会2011年学术年会、中国颗粒学会第六届学术年会暨海峡两岸颗粒技术研讨会、第21届国际搪瓷大会等;多孔玻璃的相关文献由434位作者贡献,包括周明杰、陆树新、马文波等。

多孔玻璃—发文量

期刊论文>

论文:79 占比:0.03%

会议论文>

论文:6 占比:0.00%

专利文献>

论文:310129 占比:99.97%

总计:310214篇

多孔玻璃—发文趋势图

多孔玻璃

-研究学者

  • 周明杰
  • 陆树新
  • 马文波
  • 吉田真
  • 郭宏伟
  • 徐颖
  • 侯伟杰
  • 王云
  • 莫祖学
  • 赵修建
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 张旭博; 张仁锋; 张婷颖; 雷洋; 龚洁; 徐颖
    • 摘要: 为研究全通孔型多孔玻璃的表面结构对其吸声性能的影响,对其表面进行二次打孔,利用正交试验分析表面结构参数对全通孔型多孔玻璃吸声性能的影响规律,得到吸声性能最佳样品的结构参数.结果表明:多孔材料表面结构的改变对其吸声性能有较大影响,但对初始频率影响较小.影响多孔玻璃材料吸声性能的因素依次为材料厚度、孔隙率、以及打孔孔径和孔深.在孔隙率为0.76,厚度20 m的样品基体上进行打孔,且以孔深为0.5倍样品厚度,孔径2.2 mm的设计参数最佳.此时,多孔玻璃材料的平均吸声系数高达0.82,提高了24.6%.
    • 张旭博; 徐颖; 张婷颖; 李国栋
    • 摘要: 采用广义回归神经网络(GRNN)方法,在开孔型多孔玻璃16组实验数据基础上,以12组随机数据作为训练样本,4组作为检验样本,建立以多孔玻璃厚度和孔隙率的GRNN模型,得到训练的最佳光滑因子σ=0.1,最大迭代次数为20;结果表明,模型预测值与实验值的平均误差为0.003,建立的模型精度高,预测吸声系数曲线形貌相似度高;该方法有简单、训练样本少、快速、准确等优点.
    • 赵旭东
    • 摘要: 笔者以Y—Al—Si系统玻璃为研究对象,采用有机泡沫浸渍法制备多孔玻璃,期望获得一种高孔隙率、高强度、孔洞贯通好的多孔稀土铝硅酸盐玻璃.本研究采用了新系统制备多孔玻璃,并对已有的调浆工艺进行改进.通过傅里叶红外光谱仪(FTIR)、热膨胀仪、差式扫描量热等方法,研究了基础玻璃的结构变化、玻璃软化温度、玻璃化转变温度以及基础玻璃析晶温度,还研究了多孔玻璃的体积密度、吸水率、孔隙率等物理性能.研究结果表明,在聚氨酯海绵改性40min后,以乙基纤维素为粘结剂、聚乙二醇为分散剂,当浆料配比为:基础玻璃粉料56 wt%、EC 1.2 wt%、PEG 5 mL、乙醇20 mL时,多孔玻璃烧结制度为300°C保温1h,970°C保温3.5h,在这样的条件下可获得比较理想的多孔稀土铝硅酸盐玻璃.
    • 杨高峰; 马艳丽
    • 摘要: 以Y-Al-Si系统玻璃为研究对象,采用有机泡沫浸渍法制备多孔玻璃,期望获得一种高孔隙率、高强度、孔洞贯通好的多孔稀土铝硅酸盐玻璃.本研究采用新系统制备多孔玻璃,并对已有的调浆工艺进行改进,并通过使用傅里叶红外光谱仪(FTIR)、热膨胀仪、差式扫描量热分析仪等手段,研究了基础玻璃的结构变化、玻璃软化温度、玻璃化转变温度以及基础玻璃析晶温度和多孔玻璃的体积密度、吸水率、孔隙率等物理性能.研究结果表明,在聚氨酯海绵改性40 min后,以乙基纤维素为粘结剂、聚乙二醇为分散剂,当浆料配比为基础玻璃粉料含量为56 wt%、EC为1.2 wt%、PEG为5mL、乙醇为20 mL时,多孔玻璃烧结制度在300°C下保温1h,970°C下保温3.5h,可获得较为理想的多孔稀土铝硅酸盐玻璃.%In this paper porous glass was prepared by Y-Al-Si system and porous glass was prepared by organic foam impregnation method to prepare porous rare earth aluminosilicate glass with high porosity high strength and good porosity.In this study a new system was used to prepare porous glass and the existing pulp preparation process was improved.The glass structure temperature the glass softening temperature the transition temperature and the crystallization temperature of the base glass were studied by Fourier transform infrared spectroscopy thermal expansion and differential heat.The bulk density water absorption and porosity of the porous glass were also analyzed rate and other physical properties.The results showed that after 40 minutes of polyurethane sponge modification ethyl cellulose was used as binder and polyethylene glycol as dispersant.The slurry was composed of powder:56 wt% EC:1.2 wt% PEG:5 mL Ethanol:20 mL when the ratio the porous glass sintering temperature is 300 °C for 1 h 970 °C insulation 3.5 h.Under these conditions it is possible to obtain an ideal porous rare earth aluminosilicate glass.
    • 王红燕; 张浩; 姜宏; 汪国庆; 熊春荣
    • 摘要: 为了提高镀膜玻璃的可见光透过率,本研究通过反胶束溶液刻蚀法制备出一种新型玻璃基板,即表面多孔玻璃.玻璃表面形成了蜂窝状的多孔膜层,减小了对可见光的反射率,从而使可见光平均透过率提高了7%.通过一系列射频磁控溅射实验,探索了可见光平均透过率高,紫外阻隔率最高的最佳工艺条件.在此条件下,分别在制备的表面多孔玻璃和普通玻璃上镀CeO2/TiO2防紫外线膜,并采用紫外–可见分光光度计、SEM、XRD、XPS等测试手段对样品进行了分析表征.结果表明,在相同的镀膜条件下,当镀膜后表面多孔玻璃与镀膜普通玻璃的紫外光阻隔率均为99%时,表面多孔玻璃镀膜后的可见光平均透过率为85%,而普通玻璃镀膜后的可见光平均透过率仅为79%.此外,玻璃表面上的孔结构还提高了薄膜与基板的接触面积,使膜基结合力提高2倍左右.%A glass with a honeycomb surface was prepared by a reverse micellar solution etching technology. The honeycomb surface might reduce the light reflection and increase the average transmittance of visible light by nearly 7%. The chemical etching technology is environment friendly for unuse of HF or fluosilicate. To compare the visible light transmittance of the coated glass, CeO2/TiO2 films were deposited on the honeycomb surface glass and raw glass by radio frequency magnetron sputtering. A series of optimization experiments were carried out to obtain a coated glass with high visible transmittance and high UV cut-off. The samples were characterized by UV-Vis spectropho-tometer, SEM, XRD, and XPS. When the UV cut-off ratios were 99% for both the honeycomb surface glass and the raw glass, the average transmittance of visible light was 85% for the coated honeycomb surface glass, and only 79%for the coated raw glass prepared under the same coating conditions. In addition, the porous structure on the glass sur-face also improved the contact area between the film and the substrate. Therefore, the binding force between film and substrate was increased by about 2 times.
    • 张朝晖; 杨玉莹
    • 摘要: 将牛碳酸酐酶共价固定到多孔玻璃CPG上,拟应用于烟道气中C02的强化吸收。多孔玻璃经过烷基化和戊二醛活化后,与酶共价结合。以p-硝基苯乙酸酯水解活力来表示碳酸酐酶的活性,在最优固定化pH=8.0下,固定化酶的活力为1.32U/g CPG,固定化酶载量为14.7mg/g CPG,固定化效率因子为0.334。测得固定化酶的米氏动力学参数k2和Km的值分别是258min-1和259×10-4mol/L,分别是游离酶的61.7%和2.23倍。以pH=7.85和40°C时的酶活作为比较标准,当pH〉7.85和T〉40°C时,固定化酶的性质优于游离酶。在pH=10和40°C下,固定化酶的活性似乎不稳定,在7天内下降为原来的37%。然而,以压力法测得的C02水合活力表示酶的活性,在上述条件下,固定化酶却很稳定,活性在21天内几乎没有变化,表明酯酶活力法测定酶活不能用来评估CPG-固定化碳酸酐酶的稳定性。
    • 吴海骏; 张学斌; 刘佳; 胡吉祥; 张晓珍; 凤仪
    • 摘要: 本文采用回收的废玻璃在高于玻璃化转变温度下短时间烧结制备出具有一定孔隙度和强度的过滤用多孔玻璃。废玻璃破碎成细颗粒后过筛,并在32 MPa的压力下模压成型,压坯在640°C到670°C的温度区间内烧结。实验结果表明,试样在670°C烧结30 min可以获得合适的抗弯强度(12.84 MPa)和开孔率(29.4%),此时的多孔玻璃具有明显的烧结颈,平均孔径为10μm左右,平均氮气通量和水通量分别为13600 m3m-2h-1bar-1和693.4 m3m-2h-1bar-1。
    • 邹伟仁; 徐颖; 方庆川; 罗璐; 王常力
    • 摘要: 采用盐模烧结工艺制备多孔玻璃材料,研究了孔隙率、孔径大小、厚度和后空腔深度等因素对吸声性能的影响。结果表明,提高孔隙率和增加厚度都有利于提高材料的吸声性能;孔径不易过大和过小,存在最佳值;后空腔深度对薄板的影响显著,而对厚板的影响较小。制备了孔径为018 mm,孔隙率为778%,厚度为30 mm的多孔玻璃,测试时无后空腔深度,材料的平均吸声系数为08,吸声系数大于05的起始频率为488 Hz,吸声系数曲线为平坦的高吸声曲线,这种多孔玻璃具有卓越的吸声性能。%Porous glass material is prepared by burning glass powder and soluble salt. The effects of its porosity, pore diameter, thickness and cavity depth on sound absorption properties are experimentally studied. The study re-sults, given in Figs. 1 through 5, and their analysis show preliminarily that:the sound absorption properties of por-ous glass material are enhanced with its increasing thickness and porosity;its pore diameter should not be too large or too small and has its own optimal value;the effect of cavity depth of its thin panel on sound absorption properties is more significant than that of its thick panel. The porous glass sample whose pore diameter is around 018 mm, whose porosity ratio is 778% and whose thickness is 30 mm is prepared;it has no cavity depth during the experi-ment;its average sound absorption coefficient is 08;the porous glass material whose sound absorption coefficient curve is high and flat, whose sound absorption coefficient is more than 05 and whose initial frequency is 488 Hz has excellent sound absorption properties.
    • 彭勇; 李显明; 张林; 王正宝
    • 摘要: 采用原位水热合成法,直接用四丙基氢氧化铵(TPAOH)/四乙氧基硅烷(TEOS)/H2O合成液在具有较大孔径(约0.1μm)的多孔玻璃载体表面合成b轴取向MFI型分子筛膜。考察了载体的放置方式对成膜的影响,结果表明,将多孔玻璃完全浸入合成液中时,载体表面只能得到零星分布的MFI型分子筛晶体;而将多孔玻璃部分浸入合成液中时,在液面以上的载体表面获得了b轴取向MFI型分子筛膜,靠近液面的载体表面形成的 MFI型分子筛膜比较致密。优化了合成液的配比和合成时间,发现采用合成液配比为0.64TPAOH:1TEO S:165H2O时165°C合成3 h,可以在多孔玻璃表面形成大面积连续的b轴取向MFI型分子筛膜。当合成时间延长至6h时,MFI型分子筛膜层连续致密,但呈现随机取向。%b-Oriented MFI-type zeolite membranes are prepared directly on porous glass supports (pore size 0.1 μm) by in situ hydrothermal synthesis method with the synthesis system of TPAOH/TEOS/H2O. The effect of the position of the support in the synthesis solution on the membrane formation is investigated. Only a small amount of discrete MFI-type zeolite crystals are obtained if the porous glass is immersed in the synthesis solution completely. When the support is partly immersed in the synthesis solution, b-oriented MFI-type zeolite membrane can be observed on the un-immersed support surface and the membrane is denser near the liquid level. The preparation parameters such as the synthesis solution composition and crystallization time are systematically investigated. Under the optimized synthesis condition (0.64TPAOH:1TEOS:165H2O, 165 °C 3 h), b-oriented MFI-type zeolite membrane with high coverage is achieved on the porous glass surface. When the crystallization time is extended to 6 h, the support can be fully covered by zeolite MFI membrane, however, the membrane is randomly oriented.
    • 颜雪娟; 陈琴珠
    • 摘要: 随着多孔玻璃在临床医药及医药品、石油工业、民用生产等的广泛应用,多孔玻璃制备技术的研究也显得越来越重要。介绍了多孔玻璃的用途、制备工艺、热处理对多孔玻璃微孔孔径的影响。学生在创新实验过程中,了解了多孔玻璃制备技术及用途,提高了创新意识和动手能力,增强了团队合作精神。%As porous glass is more and more widely used in clinical medicine and pharmaceuticals ,oil industry , civilian production , etc ., the research on the preparation technology for porous glass has become more important .This article describes the application and preparation technology for porous glass ,as well as the effect of heat treatment on porous glass’s pore diameter .During the process of this experiment ,students will understand the preparation technology for porous glass and its practical application . The experiment also improves students’ innovation consciousness ,practical skills and team work spirit .
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