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مرحبا هل يمكنني مساعدتك؟
تأسست شركة Liming Heavy Industry في عام 1987 ، وتقع في منطقة Pudong الجديدة ، شنغهاي ، الصين ، وتغطي أكثر من 200000 متر مربع بما في ذلك العديد من الشركات التابعة. يتعلق العمل الرئيسي بالعديد من المجالات ، مثل تكسير المناجم ، وسحق المباني ، والطحن ، وصنع الرمل ، والتكسير المتنقل ، وما إلى ذلك. الكسارة ، الكسارة المخروطية الهيدروليكية عالية الكفاءة من سلسلة HPT ، المطحنة الأوروبية شبه المنحرفة MTW ، المطحنة العمودية LM ، المطحنة الأسطوانية العمودية فائقة الدقة من سلسلة LUM ، الكسارة الصدمية ذات المحور الرأسي VSI5X ، ومعدات نظام VU.
يجلب Liming عددًا كبيرًا من المواهب الذكية والإبداعية معًا الذين يقدمون منتجات مبتكرة باستمرار. أخذت الشركة زمام المبادرة في الحصول على شهادة نظام الجودة الدولية ISO9001: 200 ، وشهادة الاتحاد الأوروبي CE وشهادة GOST الروسية ، وقد حصلت على 106 براءة اختراع وطنية بما في ذلك 4 براءات اختراع ، و 12 براءة اختراع تصميم و 90 براءة اختراع لنماذج المنفعة حتى الآن. إلى جانب ذلك ، هناك العديد من الجوائز مثل جوائز العلوم والتكنولوجيا في صناعة الآلات الصينية ، وجوائز الإنجاز العلمي والتكنولوجي في المقاطعات ، والمنتجات الصناعية الموفرة للطاقة في قائمة شرف ليمينغ.
من أول جهاز خروج تم تركيبه وتصحيحه بنجاح في كازاخستان إلى أول خط ذكي لتصنيع الرمل يعمل بسلاسة في المملكة العربية السعودية ، قدمت Liming خدماتها لـ 140 دولة ومنطقة ، مثل روسيا وكازاخستان وأذربيجان وتركيا والكويت وجنوب إفريقيا ومصر ، لا يمكن تجاهل فيتنام وماليزيا والهند وأستراليا وكوريا وكندا والاتحاد الأوروبي ، وما إلى ذلك ، وقوة الشركة في آلات التعدين العالمية بعد الآن.
رسالة عبر الإنترنت
مرحبا هل يمكنني مساعدتك؟
size silica various
2022-05-10T00:05:39+00:00
Ecofriendly and facile synthesis of sizecontrolled spherical silica
In this study, we developed a method for obtaining sizecontrolled spherical silica from rice husk using an ecofriendly and simplified process that overcomes the abovementioned limitations Silica particles were obtained by extraction from rice husk in alkaline media 2023年11月22日 Here, in the fabrication of catalasepowered silica micro/nanomotors (CMNMs), an archetypical model of enzymepowered micro/nanomotors, we find the silica Effects of size and asymmetry on catalase‐powered silica
Ecofriendly and facile synthesis of sizecontrolled spherical silica
In this study, we developed a method for obtaining sizecontrolled spherical silica from rice husk using an ecofriendly and simplified process that overcomes the abovementioned The particle size of the silica nanoparticles is shown in Figure 1d The silica nanoparticles produced in methanol had a size of 1491 ± 107 nm, Full article: A facile approach to synthesis of silica
Synthetic amorphous silica nanoparticles: toxicity, biomedical
2020年9月16日 This notice states that “The smallest divisible, discrete entity of amorphous silica is an aggregate from 01 to 1 μm in size” Silica nanoparticle additive E551 (where 2019年3月6日 In this study, various concentrations and size of silica nanoparticles are introduced into the sulfonated polyacrylamide (SPAM)/chromium (III) acetate system to Effect of silica nanoparticle size on the mechanical strength
Size and surface modification of silica nanoparticles affect
2021年6月17日 Taken together, a single intratracheal instillation of nanosize silica NPs induced significant lung inflammation up to 72 h We also observed that either larger size 2021年10月1日 The size effect of particles on the mechanical properties of silicone rubber composites reinforced by surface modified silica particles are investigated experimentally The microscopic mechanism of size effect in silicaparticle
Preparation and particle size effects study of sustainable self
2022年6月1日 Silica with particle size of 20 nm was treated with VTES and sprayed onto the substrate surface to obtain a superhydrophobic coating with high wettability and Břuska et al [ 10] studied the influence of grain shape and size on the expansion behaviour of silica foundry sands The results showed higher expansion for fraction 0355–05 mm than fraction 025–0335 mm of the same silica sand type Thiel et al [ 11] investigated the effect of various factors like grain size, grain shape, grain size The origin of thermal expansion differences in various size
Synthetic amorphous silica nanoparticles: toxicity, biomedical
2020年9月16日 Silica nanoparticle additive E551 (where E designates approved by the European Food Safety Authority) is commonly included in food products as an anticaking agent, but the size and source of the 2016年8月4日 Among various types of nanostructured silica materials, wrinkled silica nanoparticles have drawn large interests due to the usefulness of their fibrous morphology and capability for application in Wrinkled silica/titania nanoparticles with tunable interwrinkle
Chain length of bioinspired polyamines affects size and Nature
2021年11月19日 a SEM images of Silica particles grown in presence of 22 mM polyamines at various amounts of TEOS (scale bar 500 nm); Silica particles produced in presence of 22 mM C 2 N 3 at 070TEOS1C 2 N 3 2018年12月4日 The N 2 adsorptiondesorption isotherms and pore size distributions of silica aerogels prepared with various surfactants are shown in Figure 7 All the isotherms of silica aerogels represent a Type IV isotherm with an H3 type hysteresis loop, which is the characteristic of mesoporous materials [30,31]Silica Aerogel Monoliths Derived from Silica Hydrosol with Various
Nanomaterials Free FullText The Effect of Silica Particle Size
2023年3月18日 Various silica grades differing in particle size (micro versus nanosilica) and surface modification (untreated versus modified surface) have affected interfacial and mechanical properties of compressionmolded polypropylene composites, at various filler loadings The mechanical properties enhancement was extensively studied, with the 2005年11月7日 The synthesis and crystallization mechanism of various mesoporous molecular sieves with varying morphology have been studied by the methods such as Xray diffraction (XRD), scanningelectron microscope (SEM), elemental analyses and N 2 adsorption–desorption By adjustment of the synthesis conditions, two types of The structure and morphology control of mesoporous silica
Preparation and particle size effects study of sustainable self
2022年6月1日 The results show that the superhydrophobic material with a 20 nm particle size silica modified with vinyltriethoxysilane (VTESSiO 2) offers the best properties with a contact angle of 16332° and a rolling angle of smaller than 3° Compared with the raw material, the treated silica reveals superhydrophobicity under nano conditions with a 2017年7月14日 To discuss the physical adsorption mechanism of the adsorption process of cellulase, a commercial enzyme cocktail sourced from Acremonium was immobilized in mesoporous silica with various pore sizes by pure physical adsorption in this study Mesoporous silica materials with 176 nm and 38 nm pore sizes (hereafter referred to as Synthesis of mesoporous silica with different pore sizes for
Mesoporous silica nanoparticles for therapeutic/diagnostic applications
2019年1月1日 Among various mesoporus materials, mesoporous silica nanoparticles, MSNs, are a promising class of porous materials with exceptional surface properties including high specific surface area as well as pore size [10, 11] Silica nanoparticles, the submicron sized range structures which carry a silica adduct, are nanostructures with a 2023年3月1日 Silica sand samples from Fetra area in Blue Nile Basin were collected for revealing their physicochemical properties and industrial uses These samples were characterized by grain size analysis, optical microscopy, and XRay Fluorescence spectrometry methods for revealing the particle size distribution, grain shape class, and Industrial properties and uses of silica sand from Blue Nile
Green and sustainable synthesis of silica nanoparticles
2021年5月26日 Silica nanoparticles (SiNPs) have shown a wide range of applications in various technological fields It is due to their unique properties such as biocompatibility, stability, tunable pore size, high surface area and surface reactivity The ease of surface functionalization of SiNPs further extends their applications in biomedicine, targeted drug 2020年1月1日 The prepared silica NPs fall in the size range 20460 nm, which is the preferable size of particles due to better dispersion within the coating process PVD allows coating of silica on various substrates without using highly reactive species and complex safety engineering where the physical and chemical properties of the substrates are Silicabased antibacterial coatings for dental implants
Silica Nanoparticles: Morphology and Applications
2021年10月22日 Silica nanoparticles (SiNPs) are widely used in the materials science field as precursors to new technologies development In recent years, the use of silica as a nanomaterial has attracted researchers’ attention worldwide due to its exceptional properties such as low density, high surface area, and pore volume, good biodegradability, tunable 2020年4月1日 Abstract and Figures Silica sand is the most commonly used mineral for molding and core making applications in foundry technology due to its availability, thermal and chemical attributes However (PDF) The role of purity level in foundry silica sand on its
Synthesis of Silica Nanoparticles by SolGel: Size
2019年7月31日 shows different size of silica obtained by controlling reaction parameters The addition of small amount of anion electrolyte additives (ammonium salts of Br, I, and Cl) produced monodis the drying of silica gels can be found in various review papers and books [6, 13, 16] Supercritical drying, freeze2020年10月20日 thermal expansion differences in various size fractions of silica sand, International Journal of Cast Metals Research, DOI: 101080/2020 To link to this article: https://doior g (PDF) The origin of thermal expansion differences in various size
Silicalite1 formation in acidic medium: Synthesis conditions
2022年1月1日 The effect of various silica sources (TEOS, fumed and colloidal silica) and alkali metal cations (Na and K) on the silicalite1 formation is studied The efficiency of different types of seeds (micronsized, nanosized, and silicalite1 amorphous colloidal precursor) on the silicalite1 crystal growth kinetics and crystal size formed under 2023年3月6日 Targeting towards the challenge of global tyre industries of producing green and sustainable tyre, the idea of introducing prevulcanized natural rubber (NR) gel into highly silica loaded NR composite may prevail in upcoming days The high crosslinked prevulcanized NR gel was prepared by a sulfur curing system from NR latex Incorporation A feasible method of silica dispersion by introducing a pre
Effects of particle size of silica aerogel on its nano Springer
2018年11月20日 Silica aerogel as the most commonly used aerogel has attracted increasing attention from both academia and industries due to its extraordinary performances and potentials Through this study, influences of the particle size (38–880 μm) on its nanoporous structure and thermal behaviors were addressed based on a series of 2014年3月28日 Lysosomal destabilization by silica particles of varying sizes (A) LPS [10 ng/mL]primed BMDMs were stimulated with FITCdextran [1 mg/ml] and the indicated size of silica particles [03 mg/ml] or Effect of Silica Particle Size on Macrophage
LargeScale Synthesis of Nanosilica from Silica
2022年11月2日 This study will focus on industrialscale silica nanoparticle production and the application of nanosilica as a plant stimulant in maize A variant of the sol–gel method is used to successfully synthesize Silica nanoparticles are synthesized by various methods such as ball milling, hydrothermal, chemical vapor deposition, microemulsion, and sol–gel [Citation 15–20] For the purpose of obtaining silica particles with uniform size, high purity, ease to control, and scalability, the sol–gel process is the most popularFull article: A facile approach to synthesis of silica
Design and preparation of multiple silica particles and study
2023年5月29日 FIIR analysis The infrared spectra of various particles are shown in Fig 2According to the literature [], silica has stretching vibrations of SiOH found at around 3400cm1 and bending vibrations of HOH at about 1600cm1It also has characteristic absorption peaks of SiOSi at around 1100cm1, 800cm1, and 472cm1, which is 2014年7月5日 By using a mixture of main silica powder with an average particle diameter of 10 μm and 1 wt% of fine silica powder with an average particle diameter of 004 μm and a core rod having a core Effect of Various Parameters on the Stability of Silica Dispersions
Microstructural characterization of silicabased granite
2023年1月1日 Commonly known as silica or quartz found in nature and various organisms In more detail, quartz is a natural hard crystalline mineral composed of silicon and oxygen atoms The structure of the atoms is linked in a continuous arrangement of framework that includes SiO 4 with siliconoxygen tetrahedral, which each oxygen being shared between 2015年7月5日 However, the pore size of silica gels prepared by Method I was larger than that of Method II It ranged from approximately 8 to 18 nm for Method I and from 3 to 9 nm for Method II The typical pore size distributions of silica gel prepared by the two methods are shown in Fig 3 The distribution is narrow indicating that the pore size is nearly Synthesis of mesoporous silica with controlled pore structure
Preparation of superhydrophobic paper with doublesize silica
2021年2月12日 In this study, we composite coated silica nanoparticles with functional groups on paper to form a doublesize surface roughness, then hexafluorobutyl methacrylate was polymerized with 3trimethoxymethylsilyl propyl methacrylate (TSPM), a onestep method is used to prepare a hydrophobic polymer with low surface energy (PHFMAco 2022年6月9日 Though various researchers have confirmed the use of NS for particular applications of cementitious materials, it has been shown to be highly successful when utilized in a 05 to 4% proportion as a cement substitution Colloidal NS is composed of amorphous hydroxylated silica particles ranging in size from 1–500 nm in an aqueous NanoSilicaModified Concrete: A Bibliographic Analysis and
Mesoporous silicas in materials engineering: Nanodevices for
2022年12月15日 Abstract In this review, the most valuable opportunities offered by mesoporous silica nanoparticles in the field of development of nanodevices for bionanotechnology applications are reviewed The state of the art is critically discussed with particular emphasis on cancerrelated application, paying attention to all the aspects of 2021年3月30日 This study presents a robust and scalable method for synthesizing continuously the silica microspheres via the Stöber method Owing to the superb mixing accessible with gasliquid segmented flow in coiled microtube, satisfactory morphology and monodispersity of silica spheres was obtained The continuous method was firstly Continuous synthesis of monodisperse silica microspheres over 1 μm size
Nanomaterials Free FullText Effect of Domain Size,
2019年12月25日 Mechanical properties are very important when choosing a material for a specific application They help to determine the range of usefulness of a material, establish the service life, and classify and identify materials The size effect on mechanical properties has been well established numerically and experimentally However, the role of the size To obtain the high valueadded silica required for various applications in modern industries, including the cosmetics, Furthermore, by adjusting the reaction temperature during precipitation, the size of the silica particles could be controlled in the range of ∼250 nm to ∼14 μm Thus, we expect the developed method to have a great Ecofriendly and facile synthesis of sizecontrolled spherical silica
The Stationary Phase in ThinLayer Chromatography
2010年1月1日 The most common silica gel for TLC is “Silica Gel 60” which has a pore size of 6 nm (60 Å) Irregular silica gels are commonly used for layer preparation in a nominal particle size range from 20 to 5 μm for different types of plates (as discussed in the previous section) The various chemically bonded silica gel phases all have 2016年3月4日 (d) Size distribution of assynthesized silica NPs Full size image Figure 2a is a typical low magnification TEM image, showing the typical balllike geometry of silica with diameter range from Morphology controlling method for amorphous silica Nature
Multidimensional Application of Nonporous Silica
Table 1 summarizes various types of silicabased nanocomposites together with the resulting properties as reported in the literature Polymer Matrix Silica Size (nm) Silica Content Major Property Changes; Polyurethane: 175, 395 and 730: 110 wt% Constant Tg at different particle sizes and concentrations: Epoxy (DGEBA) 400:2018年11月7日 India is one of the major riceproducing countries Rice husk is a major agricultural byproduct from rice production, which is used as a fuel in boilers Its use as fuel produces huge amounts of silicarich rice husk ash (RHA) This paper aims at providing an overall assessment of environmental impacts associated with the extraction of silica from Process development of silica extraction from RHA: a cradle
The origin of thermal expansion differences in various size
Břuska et al [ 10] studied the influence of grain shape and size on the expansion behaviour of silica foundry sands The results showed higher expansion for fraction 0355–05 mm than fraction 025–0335 mm of the same silica sand type Thiel et al [ 11] investigated the effect of various factors like grain size, grain shape, grain size 2020年9月16日 Silica nanoparticle additive E551 (where E designates approved by the European Food Safety Authority) is commonly included in food products as an anticaking agent, but the size and source of the Synthetic amorphous silica nanoparticles: toxicity, biomedical
Wrinkled silica/titania nanoparticles with tunable interwrinkle
2016年8月4日 Among various types of nanostructured silica materials, wrinkled silica nanoparticles have drawn large interests due to the usefulness of their fibrous morphology and capability for application in 2021年11月19日 a SEM images of Silica particles grown in presence of 22 mM polyamines at various amounts of TEOS (scale bar 500 nm); Silica particles produced in presence of 22 mM C 2 N 3 at 070TEOS1C 2 N 3 Chain length of bioinspired polyamines affects size and Nature
Silica Aerogel Monoliths Derived from Silica Hydrosol with Various
2018年12月4日 The N 2 adsorptiondesorption isotherms and pore size distributions of silica aerogels prepared with various surfactants are shown in Figure 7 All the isotherms of silica aerogels represent a Type IV isotherm with an H3 type hysteresis loop, which is the characteristic of mesoporous materials [30,31]2023年3月18日 Various silica grades differing in particle size (micro versus nanosilica) and surface modification (untreated versus modified surface) have affected interfacial and mechanical properties of compressionmolded polypropylene composites, at various filler loadings The mechanical properties enhancement was extensively studied, with the Nanomaterials Free FullText The Effect of Silica Particle Size
The structure and morphology control of mesoporous silica
2005年11月7日 The synthesis and crystallization mechanism of various mesoporous molecular sieves with varying morphology have been studied by the methods such as Xray diffraction (XRD), scanningelectron microscope (SEM), elemental analyses and N 2 adsorption–desorption By adjustment of the synthesis conditions, two types of 2022年6月1日 These FTIR spectroscopic examination results performed on the treated silica samples suggest that SiO 2 was successfully modified using organosilane compounds The absorption peak at 980 cm –1, related to the Si–O stretching vibration, may also be related to the Si–O–Si symmetric stretching vibration between silanesIn FTIR spectra of Preparation and particle size effects study of sustainable self
Synthesis of mesoporous silica with different pore sizes for
2017年7月14日 To discuss the physical adsorption mechanism of the adsorption process of cellulase, a commercial enzyme cocktail sourced from Acremonium was immobilized in mesoporous silica with various pore sizes by pure physical adsorption in this study Mesoporous silica materials with 176 nm and 38 nm pore sizes (hereafter referred to as