基于注塑成型的再生纤维底基全水性运动鞋面料制备方法

文章研究了基于注塑成型的再生纤维底基全水性运动鞋面料的制备方法,旨在提高面料的环保性能和物理性能。研究选用了海岛纤维无纺布作为底材,采用水性聚氨酯树脂浆料,通过优化配方与工艺参数,进行了一系列实验。实验结果表明,改进后的鞋面料在透气性、耐磨性和环保性能上均有显著提升。最终结论指出,该方法成功提升了面料的物理强度和环保特性,为运动鞋行业提供了可持续发展的材料解决方案。

全水性单涂重防腐涂料的研制和性能研究

研究开发了一种全水性单涂重防腐涂料,其VOC含量为3.5 g/L,无苯系物和铅、镉、汞、铬有毒重金属;1道低于40μm的单涂层耐中性盐雾时间5000 h,耐盐水浸泡时间4200 h,耐人工气候老化时间4200 h;不同表面除锈方式条件下,涂层都表现出优异的附着力和防腐性能;涂层耐摩擦、抗冲击、机械性能优异;涂层不影响切割和焊接作业;涂料可以对热镀锌涂层进行修补涂装,并提高其防腐性能;制作的大型桥梁支撑构件,使用3 a涂层无生锈现象。

桥梁钢结构全水性防腐涂料体系的应用性能研究评价

通过实验室测试3家涂料厂家提供的水性涂料的物理性能、耐盐雾性能、耐老化性能等指标,对3家涂料厂家提供的桥梁钢结构配套水性涂料防腐涂层的性能进行了系统的试验研究,评价了水性涂料配套涂层体系在桥梁钢结构中的性能指标,最后阐述了水性涂料在桥梁钢结构中的适用应用环境,为评估水性涂料在工程项目中的适用性提供了参考。

环保型全水性高亚氨基部分甲醚化三聚氰胺树脂的研究

文章探究一种以高浓度甲醛、三聚氰胺、甲醇、脱盐水为原料的环保型全水性高亚氨基部分甲醚化三聚氰胺树脂的合成方法。该产品以水替代异丁醇作为稀释剂,树脂产品可以与水任意比互溶,拥有非常低的游离甲醛含量,在与主体树脂进行成膜固化的时候释放极少量的挥发性有机物(VOC),可以减少对环境的危害,且保留了高亚氨基的交联活性,与主体树脂反应后成膜光泽度和附着力非常好,将是未来涂料交联剂领域的重点开展方向。

全水性多彩喷塑涂料

一、概述目前,装饰材料新品迭出,花样繁多。墙面有涂料、壁纸、面砖等。地面有地板、地砖、地毯、地胶板等,令人眼花缭乱。如何选择?专家提醒说,人是要呼吸的,墙体带有'呼吸性',人住在里面才舒服。因此,墙面装饰。

全水性四色网点专用油墨的研制与应用

上海美德精细化工有限公司是利用进口原料,专门生产服饰印花特种浆料的公司.在1999年4月,开发出环保型全水性四色网点专用油墨,分A型、B型和C型.

YKP2400×1270型全电脑高速水性印刷开槽模切机研究

分析了YKP2400×1270型全电脑高速水性印刷开槽模切机的工作原理、各机构的主要特点以及控制过程,说明了设备的设计要点,阐述了设备的先进性和可行性。

全亲水性嵌段共聚物及其超分子自组装

本文介绍了全亲水性嵌段共聚物(DHBCs)的定义与特点。根据不同的环境敏感自组装机理,分类详述了不同DHBCs的结构及其超分子自组装行为,并探讨了相应的应用现状与前景。

实心聚硅氧烷微球在水性高透哑光清面漆中的应用

分别以甲基三甲氧基硅烷(Z-6070)、氨丙基三乙氧基硅烷(Z-6030)、γ-缩水甘油醚氧丙基三甲氧基硅烷(Z-6040)为原料,将经两步法水解缩合制得的微米级实心聚硅氧烷微球添加至聚丙烯酸酯乳液中制备聚丙烯酸杂合乳液(Si O2/PAE)。探讨了聚硅氧烷微球的种类、固含量占比对最终制备的水性哑光清面漆光泽度的影响,采用目测和色差仪测试相结合的方法对全哑效果下(光泽度≤10%)涂膜的透明度以及光泽稳定性进行了评价。结果表明:采用Z-6040为原料制得的实心聚硅氧烷微球共混制备的全哑清面漆的涂膜透明度最佳,在标准黑色底板上的色差仅为0.1%,且热贮存30 d后光泽仍稳定。

新时期建筑涂料的开发

根据世界涂料的发展,结合中国的具体情况,从节能、美观、健康、功能等方面提出了新时期建筑涂料的开发目标。

Study on the Changes of Non-structural Carbohydrates and Nitrogen Contents of Quercus aquifolioides Scrub along Different Elevation Gradient

[Objective] The aim was to compare the content changes between the non-structural carbohydrates（NSC）and the total nitrogen in various growing seasons,and to explore the response relationship between altitude and the contents.[Method] Taking Quercus aquifolioides scrub which widely distributed in Zheduoshan in the west of Sichuan as the experimental objects,the changes between NSC and the toal nitrogen in various growing seasons at different altitude were studied.[Result] The results showed that the content of NSC in Quercus aquifolioides underground increased with the lift of elevation in the dormancy,but decreased in the early germination,growing period and growth stage.The content of NSC in the ground tissue changed non-linearly with increasing elevation.In addition,the total nitrogen of Quercus aquifolioides organizations was decreasing with increasing elevation in the dormant period,which did not change significantly in the other periods.This result implied that the content of NSC in Quercus aquifolioides underground was more sensitive to temperature.[Conclusion] The experiment laid basis for the exploration of the physical and ecological mechanism of underground plants adaptability to highland environment,their response to global climate changes and adjustment to high altitude ecological system.

Temporal-Spatial Variances of Holocene Precipitation at the Marginal Area of the East Asian Monsoon Influences from Pollen Evidence

The woodland-steppe ecotone in the. southern Nei Mongol Plateau is located at the northern edge of the east Asian monsoon influences. A marked southeastern - northwestern (SE - NW) precipitation gradient exists in this region. Quantitative reconstruction of palaeo-precipitation of this region is helpful to reveal the development of monsoon climate and to predict die future desertification. Based on modern vegetation and surface pollen studies, a pollen-precipitation transfer function in the study region was established. Pollen data from three sediment sequences within the ecotone were used to reconstruct palaeo-precipitation during the Holocene. The processes of precipitation changes in the three sequences were quite different. There was a tendency of precipitation declined from the onset of the Holocene to 1 100 a BP in Haoluku. But, in Liuzhouwan and Xiaoniuchang, both located south of Haoluku, the annual precipitation reached highest values during 7 800 - 6 200 a BP and 7 200 - 5 000 a BP, respectively. The influences of southwestern (SW) monsoon and the variances of topographical conditions have possibly caused these temporal-spatial variances.

城市透水路面铺装的LCA评价指标设计

近年来,透水性铺装在我国受到了越来越高的重视,其使用范围也日益广泛,但我国对其的理论研究力度还不够,缺乏相应的技术标准和规范,因此,透水路面铺装在设计和使用过程中出现了大量问题。本文针对透水路面铺装所存在的问题,运用全寿命周期思想,通过采用层次分析法,对透水路面的技术-经济评价指标进行了初步的探讨,以期为我国透水性路面铺装的评价或深入研究提供参考。

Digital Watermark-based Security Technology for Geo-spatial Graphics Data

The paper presents a set of techniques of digital watermarking by which copyright and user rights messages are hidden into geo-spatial graphics data,as well as techniques of compressing and encrypting the watermarked geo-spatial graphics data.The technology aims at tracing and resisting the illegal distribution and duplication of the geo-spatial graphics data product,so as to effectively protect the data producer＇s rights as well as to facilitate the secure sharing of geo-spatial graphics data.So far in the CIS field throughout the world,few researches have been made on digital watermarking.The research is a novel exploration both in the field of security management of geo-spatial graphics data and in the applications of digital watermarking technique.An application software employing the proposed technology has been developed.A number of experimental tests on the 1：500,000 digital bathymetric chart of the South China Sea and 1：10,000 digital topographic map of Jiangsu Province have been conducted to verify the feasibility of the proposed technology.

Water oxidation sites located at the interface of Pt/SrTiO_(3) for photocatalytic overall water splitting

When a proton reduction cocatalyst is loaded on an n-type semiconductor for photocatalytic overall water splitting(POWS),the location of water oxidation sites is generally considered at the surface of the semiconductor due to upward band-bending of n-type semiconductor which may ease the transfer of the photogenerated holes to the surface.However,this is not the case for Pt/SrTiO_(3),a model semiconductor based photocatalyst for POWS.It was found that the photogenerated holes are more readily accumulated at the interface between Pt cocatalyst and SrTiO_(3) photocatalyst as probed by photo-oxidative deposition of PbO_(2),indicating that the water oxidation sites are located at the interface between Pt and SrTiO_(3).Electron paramagnetic resonance and scanning transmission electron microscope studies suggest that the interfacial oxygen atoms between Pt and SrTiO_(3) in Pt/SrTiO_(3) after POWS are more readily lost to form oxygen vacancies upon vacuum heat treatment,regardless of Pt loading by photodeposition or impregnation methods,which may serve as additional support for the location of the active sites for water oxidation at the interface.Density functional theory calculations also suggest that the oxygen evolution reaction more readily occurs at the interfacial sites with the lowest overpotential.These experimental and theoretical studies reveal that the more active sites for water oxidation are located at the interface between Pt and SrTiO_(3),rather than on the surface of SrTiO_(3).Hence,the tailor design and control of the interfacial properties are extremely important for the achievement or improvement of the POWS on cocatalyst loaded semiconductor photocatalyst.