The results showed that talc composite had good flame retardant resistance. when the concentration of talc reached 40 g/100 ml, the 50% liquid separation time of the composite was 21.1 ...
The key difference between lubricant glidant and anti adherent is that the lubricant reduces the friction while the glidant promotes the flowability of a powder whereas the anti adherent …
Flowing agents, lubricants, and anti-sticking agents such as Cab-O-Sil (CS), magnesium stearate (MgSt) and talc have been widely used in pharmaceutical formulations in order to enhance the flowability of powder mixtures ( Johansson and Nicklasson, 1986; Hussain et al., 1988 ). Optimal concentrations of these excipients are critical factors for …
This entry summarizes the mechanisms of anti-blocking and subsumes results from literature on that subject with an emphasis on the mineral anti-blocking additives.
The influence of talc powder addition on the thermal properties and thermal curing behavior of final epoxy-talc systems were investigated by non-isothermal differential scanning calorimetry (DSC) measurements at four heating rates.
Chemical pleurodesis is a therapeutic procedure applied to create the symphysis between the parietal and visceral pleura by intrapleural administration of various chemical agents (e.g. talk, tetracycline, iodopovidone, etc.). The two major clinical conditions treated with chemical pleurodesis are recurrent pleural effusion (PE) and …
Anti-adherents prevent substrate agglomeration during both the coating process and subsequent storage. Talc is a common water-insoluble anti-adherent used in pharmaceutical coatings in rather high concentrations (50–, based on the polymer …
The second class of lubricant activity is the antiadherent, which prevents the adhesion between the tablet surfaces and tablet punches. Die-wall lubricants reduce friction between the tablet surface and the die wall during tablet compaction and tablet ejection. Commonly used types of lubricants are listed in Table 4.
Synthetic talc prepared using hydrothermal processes (P2, P3 and P4) leads to a product: (1) with a talc-like structure (Figure 7 and Figure 11), (2) with a high chemical purity, (3) …
Anti-adhesion-based therapies can be effective in prevention and treatment of bacterial infections, but further work is needed to elucidate underlying mechanisms.
The addition of lubricants also affects tablet properties and can affect the behavior of the powder mixture. The objective of this research was to investigate the effect of lubricants on powder flowability as flowability into the tablet press is critical. Four lubricants (magnesium stearate, magnesium silicate, stearic acid, and calcium ...
The anti-adhesive strategy emerged as a relevant alternative therapeutic approach, targeting uropathogen virulence traits. FimH is one of the most-studied adhesins expressed by UPEC strains because it is a key determinant of urovirulence. Indeed, FimH interacts with high-mannosylated uroplakins, enabling the bacterium to stably adhere to ...
Zinc oxide is a mineral ingredient of various pharmacological preparations to treat diaper dermatitis and other skin conditions, to protect the epidermis, and to prevent sunburn.
The fire resistance and fire extinguishing properties of the composite were studied. The results showed that talc composite had good flame retardant resistance. when the concentration of talc reached 40 g/100 ml, the 50% liquid separation time of the composite was 21.1 min.
Talc is an essential mineral that plays a vital role in products ranging from ceramics to paper. It is also used in the manufacturing of plastics, adhesives, ink, glidant, lubricant, rubber, wastewater treatment, and polymers. Talc is a hydrated magnesium sheet silicate.
Download scientific diagram | Mechanism of the adhesive bonding process from publication: Developments in pressure-sensitive adhesives: a review | An adhesive is a non-metallic substance used for ...
Anti-adhesive activity of wheat germ-derived peptides, which is considered as one of the promising strategies for preventing Helicobacter pylori infection, was investigated. The underlying mechanism of anti-adhesive action was due to peptides acting as receptor analogues and binding to H. pylori adhesin proteins.
The use of plant extracts and combined treatments could be a novel anti-adhesion approach in fresh produce industry. These new approaches can enhance the understanding of anti-adhesion mechanism and will advance the development of new technologies to control bacterial adhesion.
This Special Issue of the journal Coatings, titled "Anti-Adhesive Surfaces", is devoted to research and review articles covering every aspect related to metallic, ceramic, polymeric, and composite coatings or modified surface layers aimed at reducing/minimizing surface adhesion to a broad range of counterparts, with …
Semantic Scholar extracted view of "Fabrication of talc reinforced transparent fire-retardant coating towards excellent fire protection, antibacterial, mechanical and anti-ageing properties" by Long Yan et al.
The influence of PEG-BA molecular weight on the optical transparency, thermal stability, mechanical properties, fire resistance and ageing resistance of the coatings was investigated by various analytical instruments, and the possible flame-retardant and anti-ageing mechanisms of PEG-BA in the coatings is proposed.
Most effective anti-adhesive components reported so far are food derived. This review aims to provide an update on the study of anti-adhesive food components, and to discuss the challenges and perspectives for the application of these anti-adhesive components against infectious diseases.
Nov 22, 2016, Abstract: An anti-friction Babbitt alloy-coated bearing made by a casting process is a journal, have investigated the wear properties,anti adhesive ore crusher - lecafedumarche,anti adhesive ore crusher; anti adhesive ore crusher. rock crusher of ultrafine talc 320 mesh RMC plant ELKON . rock crusher of ultrafine talc 320 mesh.
In this study, the main concern is investigating the effect of talc on the protecting properties of polyurethane (PU) coating based on acrylic polyol/hexamethylene diisocyanate. To …
Apart from physical properties, they were evaluated for anti-wear (AW) and extreme-pressure (EP) performance on a 4 ball tester since tribo-potential of nano-talc particles are not explored in the literature.
Traditionally, talc is used as an anti-tacking agent at concentrations up to based on the polymer [19]. The high amount of additive is also present in the final coating and …
Magris Talc offers a range of products which are high-purity, functional additives ideal for adhesives, caulks, mastics, and sealants. Magris Talc provides reinforcement for improved mechanical properties and imparts hydrophobicity and barrier properties for improved corrosion resistance.
However, several receptors that may be involved in the adhesive mechanism of Salmonella fimbriae are still un-identified. This review aimed to summarize the types of Salmonella fimbriae produced by different assembly pathways and their role in adhesion.
Rheology Modifiers Selection for Adhesives and Sealants. Rheology modifiers improve the viscosity and have a great impact on the application characteristics of adhesive and sealant formulations. They help you to adjust the flow properties as well as prevent settling down of fillers during settling and transportation in your formulation.
