Golden Cashew Products Pvt. Ltd. Blog

Cashew Nut Shell Liquid A Good Intermediary for Many Products

Mon, 29 Jun 2015 12:33:40 +0530

Cashew nut is a crop which has multiple yields when taken for processing. One such product is the cashew nut shell liquid. This is naturally occurring thick syrup, which is extracted from the cashew shells, using expellers and is subsequently distilled to remove the impurities, which could interfere with the downstream processes where the liquid is used. The Distilled Cashew Nut Shell Liquid Manufacturers, therefore, employ the latest in technology in order to extract the maximum liquid from the shell and supply the best quality CNSL to their customers.Brief Overview of the ProcessThe process of manufacturing cashew nut shell liquid or CNSL is more suited to medium sized enterprises, preferably close to where the cashew nuts are cultivated to save on the transportation costs. The setting up of a plant, to produce CNSL from the cashew nut shells is also not very difficultas it requires limited capital expenditure. However, the technical people employed should be fully conversant with the process. The main equipment used is an expeller, which does the job of extracting the liquid from the shell of the cashew nut. A good technology deployed can achieve an extraction of up to 20% by weight of the shells in the form of the liquid. The liquid thus obtained might have certain impurities, specifically metallic impurities, which will have to be removed through chemical treatment and the distilled cashew nut shell liquid, ready for shipment to end users, is produced. It is then packed in suitable packaging. Most units producing the cashew nut shell liquid would also be using a part of their production captively to make cashew friction dust. The rest is sold to end users, which are mainly industries.End Uses and Applications of Cashew Nut Shell LiquidThe distilled cashew nut shell liquid goes into production of paints and varnishes and in the manufacture of epoxy resins and so on. The long list of other products that use cashew nut shell liquid as one of the main ingredients includes as friction linings, laminating resins, polyurethane based polymers, surfactants, foundry chemicals and also as intermediates for the chemical industry.Some of the features which make this product acceptable to the above mentioned industries are that the cashew nut shell liquid: Has better resistance to alkalis and acids Is low-cost Phenol Polymerization happens much faster and more complete Has better impact resistance and flexibility Is more soluble in organic solvents It displays good electrical and water resistance It is therefore a large base of customers that the distilled cashew nut shell liquid manufacturers cater to.

Cashew Friction Dust- essential component to make brakes stronger

Thu, 30 May 2019 11:37:52 +0530

Cashew Friction dust is cross-linked Phenolic Polymers derived from cashew nut shell liquid by using a special process to give the desired friction properties. Cashew friction particles are specialty products used as additives in the manufacturing of friction material like • Brake Linings, • Disc Brake Pads, • Railway Brake Blocks and • Clutch Facings etc. In order to stabilize the friction level. These help to endure higher than normal temperatures produced by repeated brake stops, at the same time, help to decrease the overall pad hardness to keep compressibility within the desired range. Cashew friction particle is used in disc pad brakes and drum linings as a stabilizing agent. These particles have a resilient nature which cushions the engaging property of a piece of lining. Process of manufacturing cashew friction dust CNSL is fractionated in a procedure identical to the distillation of petroleum with two primary end products: • solids that are ground and used as friction particle for brake linings, and • Amber -colored liquid aminated to form phenalkamine curing agents and resin modernizers. Properties of Cashew friction dust: Friction dust is crisscrossed linked product obtained from the reaction of cashew nut shell liquid with different aldehyde donors like Formaldehyde/hexamine/ Para-Formaldehyde In order to achieve the desired friction dust properties. Mostly it is a phenol-formaldehyde resin, which is polymerized and re-joined with any one of the aldehyde donors. It is then made to the powdered form of various standard mesh sizes. The benefit of using friction particles: Friction Dust improves wear and fades resistance, decomposing at various elevated temperatures thereby providing good flexibility and thermal stability in friction materials. Friction dust is added to modify frictional and wear properties of the brake linings. An increase of 30-40 % in wear upgrading is anticipated. It also benefits in decreasing the fade value and dropping the sound level. Hence, gives the brake lining enhanced life and noiseless braking action. How is it better than conventional material? The conventional material was found to give serious problems this is suspected to catch fire during shipments. Hence it's export market has eroded greatly. So this friction dust was developed. It comes with improved thermal stability and better resistance to flammability compared to the tradition material. Characteristics • Improved impact properties and reduced fade by dispersing heat faster than phenol-formaldehyde resins • Decomposition on the surface of a lining takes place at various elevated temperatures which control the wear and offers a protective device by prohibiting excessive temperature from being developed • Improved skid resistance and low brake noise • The best friction converters out of all improved phenolic offering impact resistance, flexibility, thermal stability • Great water repellence, required in wet condition • Cold Weather- CF resins give rise to a softer material, which is more efficient in 'cold weather' • Hot Weather- Modified friction dust for applications in 'hot wear' conditions. Where to buy them? There are many Cashew Friction Dust Manufacturers in India that offer high-quality products online as well. Here are their salient features: 1. Develop the sample/product 2. Expert In-house testing 3. Finalization of the product 4. Mass production as per the requirement 5. Quality Checks at different levels 6. Easy accessibility to raw material 7. Strong client network in India 8. Use premium packaging material 9. Dispatching the product timely

What is it & why is it used for?

Fri, 09 Aug 2019 17:10:47 +0530

The installation procedure of epoxy floor coatings comprises the mixing of epoxy resin with a hardening agent. They react with one another before the mixture is applied on any concrete substrate. The epoxy resin may be pre-pigmented or clear depending on the use of particular systems. A few of the clear epoxy resins are having well-matched color packs which can be added to offer shades to the clear system. While others include distinct aggregate components for improving some particular performance properties just like compressive strength, impact resistance, and slip resistance. A few popular examples of multicolored decorative elements are ceramic coated quartz and blended vinyl chips. Functions of epoxy hardener: Epoxy resins are stable kinds of fluids which is having generally longer shelf lives. Only after getting combined with epoxy hardeners they are properly cured. If the hardener is not mixed with epoxy resin then the epoxy resin will remain on the floor in nearly liquid condition forever and obviously it will not offer a durable flooring system. The characteristic of epoxy resin is quite different from paints. Paints work by relying on the fading of moisture to ultimately toughening into a thin film. But an epoxy resin coating on the floor will only achieve its high performance protecting features by experiencing a chemical reaction performed under certain circumstances between the epoxy resin and the hardener compound. The process of epoxy floor coating is performed through induction, i.e. various floor coating materials are mixed together and left on the floor for about half an hour so that the elements chemically react together and get enough time to get well-placed before installation. It is better and safer than the ribboning in containers, as no dangerous molecular activity happens here. Skill is required… While mixing the epoxy resin and hardener, skill is required for the contractor as he gets only 15 minutes for the whole installation process. In fact, he may need to apply multiple layers of epoxy coatings within 4-12 hours’ time gap. The experience and knowledge of the contractor and the quality of commercial-grade epoxy can decide the excellence of the resinous floor coating system. Formula impacts performance: The amount of epoxy hardener and its type required for the application depends on the type of epoxy resin being chosen for a similar application. The genuine floor coating with epoxy resin is liquid in nature which comprises of cent percent solids and depends a lot on a compatible epoxy hardener for creating firmly crosslinked molecular constructions which offer unbelievable strength, flexibility and virtual impermeability to the cured film. The word epoxy refers to a wide range of polymer and pre-polymer groups and not only a single substance, but the type of epoxy can also put a great impact on the required amount and type of epoxy hardener. The epoxy hardeners manufacturers use the formula for an epoxy floor coating using the molecular weight of it for determining the requirement of hardener to execute an effective cure. Different formulations offer multiple characteristics for handling moisture levels, heavier loads, and improved chemical resistance.