再生纺涤纶短纤维优化配料模型研究

根据约束线性规划原理及涤纶短纤维生产过程中物理变化的内在联系,建立了中空涤纶短纤维配料的数学模型,该模型充分考虑了再生涤纶短纤维生产的工艺要求,得到了适合生产需要的配料结果。通过实例模拟配料计算,该模型比常规配料计算更科学。     

1.33dtex高强低伸型涤纶短纤维生产工艺探讨

对1.33dtex涤纶短纤维生产成形机理进行了分析,探讨了生产高强低伸型1.33dtex涤纶短纤维工艺。     

1.33dtex高强低伸涤纶短纤维生产工艺探讨

探讨了在现有涤纶短纤维装置上生产 1.33dtex× 38m m高强低伸涤纶短纤维的生产工艺流程及工艺参数。     

3.33dtex不等长三维卷曲中空涤纶短纤维精纺毛涤双面哔叽

从3.33dtex不等长三维卷曲中空涤纶短纤维生产、毛条制造和织物制造等方面介绍了3.33dtex不等长三维卷曲中空涤纶短纤维精纺毛涤双面哔叽的生产情况。     

新型涤纶短纤维油剂在生产中的应用

通过对在棉型涤纶短纤维生产中 ,新型涤纶短纤维油剂的工作液调配、纤维上油工艺及纺纱加工的相关特性研究 ,探讨合理使用该品种油剂 ,提高涤纶短纤维可纺性和适用性的方法     

远红外中空三维卷曲再生涤纶短纤维生产控制要点

介绍了利用再生材料生产远红外三维卷曲中空涤纶短纤维的生产控制要点。通过原料的把关,前后纺工艺的调整,生产出了质优价廉的远红外再生三维卷曲中空涤纶短纤维。     

大容量涤纶短纤维纺丝工艺和设备的发展趋势

介绍了我国涤纶短纤维设备的发展历史;分析了国内大容量涤纶短纤维设备现状;比较了涤纶短纤维纺丝工艺和设备特点,重点分析了大容量涤纶短纤维生产装置的纺丝关键技术,即组件、喷丝板、丝束冷却装置的关键技术;指出了提高纺丝单位产能的有效途径;比较了各种形式的丝束冷却吹风装置和喷丝板直径小于等于400mm和大于400mm时,两种吹风形式工艺条件下纺丝成品产量和质量的关联度;提出了对200t/d及以上大容量涤纶短纤维纺丝技术研发方向的建议。     

最新专利

一种回料纺涤纶短纤维本发明涉及一种回料纺涤纶短纤维,其特征是采用废旧聚酯瓶、片材,膜及聚酯涤纶生产过程中产生的聚酯块料、废丝为原料,经过系列再生利用生产涤纶短纤维,生产流程是:PET瓶片及PET其它废塑料回收,粉碎,清洗,分拣,干燥,纺丝得到涤纶短纤维。纤维可纺性好,色泽     

我国低熔点涤纶短纤维的发展现状及发展趋势

介绍了低熔点涤纶短纤维的结构和特点、国内外低熔点涤纶短纤维的发展过程及现状,分析了低熔点涤纶短纤维生产中低熔点聚酯的合成及皮芯复合纤维的制备工艺路线和相关影响因素。简述了低熔点涤纶短纤维在织物产品和非织造布行业的应用。低熔点涤纶短纤维已成为纺织品、床垫、椰棕材料、汽车内饰等绿色制造的热点原料,市场需求量逐年递增,其未来的发展趋势是替代传统纤维或产业用粘胶剂和脲醛胶,应用前景广阔;今后应在产品品质、性能及功能上缩小与国外同类产品的差距,同时应加强其绿色生产技术的研究与开发。     

2.22dtex阳离子可染涤纶短纤维生产工艺探讨

从涤纶短纤维生产工艺的共性出发 ,结合阳离子切片本身的特性 ,探讨了生产 2 2 2dtex阳离子可染涤纶短纤维的主要生产工艺 ,并与常规 2 2 2dtex涤纶短纤维作了简要对比。最后对CDP纤维的染色性能作了简要介绍     

Prediction of Extremely Low and High Explosion Frequencies from sensitiveness tests

Probit analysis is an efficient method for analyzing sensitiveness test data. If the aim is to determine themedian stimulus value, the choice of stimulus scale is of minor importance. If, on the other hand, extreme frequencies are to be predicted, great care should be taken in the selection of an appropriate stimulus scale. A scale incorporating an upper and a lower stimulus level corresponding to explosion probability 1 and 0, respectively, is suggested. In an illustrative example this scale is shown to involve considerably less bias than either a simple linear or logarithmic scale.     

Evaluation of Scale and Corrosion Inhibition of Modified Polyaspartic Acid

Amino acid modified polyaspartic acids were evaluated as calcium-scale inhibitors. Feasibility of scale inhibition experiments was analyzed by molecular dynamics simulation and Gaussian optimization, and the scale inhibition mechanism was theoretically analyzed. Scale inhibition performance was studied by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, static scale inhibition experiments, and electrochemical performance testing, which provided an experimental basis for the molecular dynamics simulation. The experimental results showed that Arg-SA-PASP has better scale inhibition and corrosion inhibition performance than His-SA-PASP. The scale inhibition effect increased with increasing concentration. Electrochemical tests indicated that Arg-SA-PASP is an excellent scale and corrosion inhibitor.     

The effects of cast industry waste of scale instead of cement on the mechanical and microstructural properties

The scale is a waste coming from the metal casting industry. It is an iron oxide layer formed as a result of oxidation after annealing on steel surfaces. Casting wastes, which have been left uncontrolled for many years, have caused considerable environmental damage. In the present paper, the mechanical properties and microstructural characterization of cement mortars, prepared by using scale coming from Turkey steel manufacturer were experimentally investigated. The steel scale was used as a partial replacement of cement. Recycling of solid waste scale is considered as an environmental-friendly alternative to solve the problem of disposing of wastes. Cement mortar admixtures were prepared by variable percentages of scale from 2% to 10%. The effect of scale on the strength of cement mortar was analyzed. The compressive strength values of all the specimens were recorded for 3, 7, and 28 days and the results showed that when the amount of scale replacement was increased, the strength increased slightly. However, cement mortar containing 4% wt. additive has shown the highest strength value at 3 and 28 days. As a result an optimum additive amount of scale in the cement mortar is found as 4% wt. Microstructural observation of the samples using SEM showed that scale particles were well embedded in the c matrix.     

新型反渗透阻垢剂YSM-11的阻垢性能

采用静态法考察新型反渗透阻垢剂YSM-11的性能,结果表明该阻垢剂对CaCO3和CaSO4垢都有较高的阻垢率,对钙离子容忍度高、药剂使用量低,且对硅垢也有较好阻垢效果。与国内常用进口阻垢剂大湖135对比．YSM-11是一种高性价比的环保型反渗透阻垢剂,完全能代替进121药剂应用于反渗透系统。     

原油外输管线防垢技术

中原油田W#站外输管线因结垢导致输送压力上升，管线结垢减少了有效输送能力和增加垢下腐蚀的可能，通过对管线内介质分析和垢样分析，阐述了结垢的主要原因，室内筛选了2种防垢剂在现场使用后取得了明显效果。     

油田垢样分析检测方法与应用

以现场垢样为例,提供了一种结垢油井垢样的分析检测方法。即称取一定量的垢样进行干燥、焙烧,以确定该垢样为有机垢样或无机垢样;若该垢样为有机垢样,根据行业标准进行蜡含量、胶质、沥青质含量的测定;若该垢样为无机垢样,进行定性分析后用盐酸溶解,然后根据行业标准进行钙离子、镁离子、铁离子、硫酸根离子以及硅离子含量的检测。该方法对垢样进行快速定性、定量分析,操作简单、快速、误差小。     

悬浮法PVC生产中粘釜物的成因研究

通过5 L实验型反应釜对粘釜物产生过程进行了研究,采用透射电镜对粘釜物进行微观形貌分析,找出了悬浮法PVC生产中粘釜物形成的原因及其产生机理.     

用于高硬度高碱度水质的阻垢缓蚀剂ZPS—03的性能研究

采用静态阻垢和旋转挂片腐蚀试验方法研究了ＺＰＳ０３阻垢缓蚀剂在高硬度高碱度水质中的阻垢缓蚀性能。结果表明,循环冷却水浓缩倍数不超过２．０时,ＺＰＳ０３具有优良的阻垢缓蚀性能;浓缩倍数超过２．０时,加稀硫酸降低ｐＨ是一种有效的控制结垢措施。     

Using fish scales (Sardina pilchardus) within ethylene‐propylene‐diene ter monomer rubber as bio‐based filler

Proper management of waste bio‐based materials is an important subject to protect the environment in a sustainable manner. In this study, ethylene‐propylene‐diene monomer (EPDM) composites with different fish scale content were prepared and properties of these composites were investigated. Mechanical tests, gel content, curing, and thermal properties were analyzed. In addition, rheological and morphological analyses were also carried out. It was seen that EPDM rubber and fish scale composite have a good compatibility. The addition of fish scale improved the mechanical properties of the final material. Moreover, an increase in gel content and in swelling ratio was obtained for the composite samples containing fish scale. Moving die rheometer tests are concluded that fish scale has acted like an agent that improves the vulcanization process. Thermal gravimetric analysis result pointed out that the thermal stability of the composite developed is higher than neat EPDM. It was concluded that 40 phr fish scale content gives best results. The kinetic study demonstrated that fish scale is compatible with the matrix and improves the vulcanization process. The results have shown that using the fish scale as a bio‐based filler is a facile and green way to accommodate the bio‐based wastes. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 46698.     

LS型阻垢缓蚀剂的合成

介绍LS型阻垢缓蚀剂的研制方法,并对阻垢缓蚀剂性能进行了对比测试,从而得出LS型阻垢缓蚀剂是一种优异的环保型水处理剂。