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Polypropylene wax primarily acts as a dispersant and processing aid in pigment processing, playing a particularly crucial role in the production of high-quality colour masterbatches, coatings and inks. Excellent dispersing properties: During pigment processing, polypropylene wax rapidly wets the surface of pigment particles, effectively preventing agglomeration and thereby achieving a stable, uniform dispersion. High compatibility with polypropylene (PP) systems: When pigments are ultimately used in PP plastic products (particularly fibres and films), the use of polypropylene wax as a dispersant offers a decisive advantage. This is because its chemical structure is identical to that of the PP matrix, ensuring excellent compatibility.

The role of microcrystalline wax in yarn coating: ‌Reducing friction: Microcrystalline wax possesses excellent flexibility and lubricity, forming a lubricating film on the yarn surface to reduce friction between the yarn and textile machinery, thereby lowering the yarn breakage rate. ‌Improving abrasion resistance: Enhances the yarn’s abrasion resistance during high-speed spinning and weaving processes, extending the yarn’s service life. ‌Improved Hand Feel: Ensures the final fabric feels softer and smoother. ‌Anti-static: Certain microcrystalline wax formulations can help reduce static electricity build-up during yarn production.

Microcrystalline wax is a waxy substance refined from petroleum. It possesses characteristics such as a high melting point, excellent flexibility and good adhesion, and is widely used in various industries including rubber, electronics and electrical appliances, and packaging. Industrial and Electronics Sectors Rubber and Plastics Processing: In the rubber industry, it prevents surface cracking and chalking whilst enhancing wear resistance; in plastics, it optimises flow properties and anti-adhesion, and is widely used in the casings of electronic products. Electrical and Electronic Insulation: Used as a sealant and insulating material for capacitor impregnation, battery sealing and cable insulation paper, it protects components from moisture damage.

Main applications of microcrystalline wax in casting: ‌As a component of wax patterns: Microcrystalline wax is commonly used in the formulation of precision casting wax compounds. It is blended in specific proportions with paraffin, resins, natural waxes and other materials to enhance the flexibility, resistance to deformation, surface finish and dimensional stability of the wax patterns. Suitable for high-precision castings: Widely used in fields with high demands for surface quality and dimensional accuracy, such as aeroengine blades, medical devices, automotive components and jewellery. Improved demoulding performance: Microcrystalline wax’s low-temperature plasticity and high-temperature stability facilitate the precise forming of wax patterns within complex moulds and help maintain their shape during the pouring process. Reduced post-processing: Castings produced using microcrystalline wax have a smooth, fine surface finish and typically require no additional polishing.

The key role of microcrystalline wax in scented candles‌ ‌Enhanced hardness and thermal stability‌: Microcrystalline wax significantly improves the structural strength of candles, preventing deformation or collapsing at high temperatures, making it particularly suitable for large- capacity or intricately shaped candles‌. ‌Reduced Shrinkage and Prevention of Cup Separation‌: Its low shrinkage rate helps the candle adhere closely to the inner walls of the container during cooling, preventing the ‘cup separation’ phenomenon‌. ‌Improved Surface Gloss and Texture‌: It makes the candle surface smoother and finer, enhancing its visual appeal‌. ‌Enhanced flexibility and ductility: Particularly suitable for DIY projects, as it reduces the risk of cracking and facilitates the addition of decorations such as dried flowers and colourants.

Excellent thermal stability and lubricity: Microcrystalline wax is composed of branched-chain alkanes and naphthenes. Compared to ordinary paraffin wax, it offers superior lubricity and thermal stability, and therefore performs exceptionally well in moulding processes involving higher temperatures. Long-lasting release performance: In the moulding of materials such as polyurethane, release agents containing microcrystalline wax can achieve a ‘one-coat, multiple-use’ effect, effectively improving production efficiency. High surface finish: Microcrystalline wax can be applied and polished multiple times, forming a smooth film on the mould surface. This results in a finished product with minimal surface imperfections and a high gloss finish, which is particularly important for industries with stringent aesthetic requirements.

Microcrystalline wax is a key ingredient in the production of high-quality shoe polish; it makes the polish easier to apply, ensures a long-lasting shine, and enhances the leather’s water-repellent and stain-resistant properties. It serves the following primary functions in the manufacturing of shoe polish: Formulation and stabilisation: Microcrystalline wax has excellent oil- absorbing properties, enabling it to ‘lock in’ the various oils and solvents within the shoe polish, forming a uniform and stable paste that prevents the separation of oils during storage. Enhancing shine and durability: With its fine crystalline structure, it generates a shine easily through friction and forms a tough, translucent protective film on the surface of leather shoes, making them shine more with each polish. At the same time, this wax film provides effective water and stain resistance.

Microcrystalline wax is a highly effective waterproof and moisture-resistant material, owing primarily to its chemical stability, strong water-repellency, good flexibility and excellent adhesion. It has a wide range of industrial applications, primarily in the following areas: Flooring and building materials: Used as a waterproof sealing layer for laminate flooring, it penetrates the surface of the material to form a waterproof barrier whilst preventing the release of harmful substances from the flooring. It is also used as a waterproof coating for corrugated cardboard boxes. Premium packaging: It is used as a waterproof layer in packaging boxes for tobacco, alcohol and cosmetics, providing dual waterproofing to prevent the packaging from becoming damp, softening and losing strength. Other industrial products: It is used as an ingredient in rust inhibitors, candles and polishes, utilising its stability and water resistance to provide sealing, protection and a glossy finish.

In the ink and coatings industry, microcrystalline wax is primarily used as an abrasion inhibitor, scratch-resistant agent and touch modifier, whilst also improving the formability of products. Abrasion and scratch resistance: After printing, the wax floats to the surface of the ink film to form a lubricating protective layer; this is one of its most important functions. Anti-adhesion and Slip: It prevents printed materials from sticking together when stacked and enhances slip, facilitating post-press processes such as cutting and stacking. Printability: In offset printing, it reduces ink viscosity, effectively minimising paper ‘fuzzing’ and ‘powdering’, thereby improving printing efficiency. Scratch Resistance: Particularly suitable for applications requiring high abrasion resistance, such as scratch-off inks used on airline tickets, lottery tickets and other prize-winning scratch-off products.

Microcrystalline wax can be used as a lubricant, with its applications primarily falling into the following categories: ‌As a thickening agent for greases: Microcrystalline wax possesses good gel strength and adhesion, and is commonly used as a thickening agent in the manufacture of greases for instrumentation and sealing, as well as in petrolatum-based products, effectively regulating the consistency and stability of the grease. ‌Direct use as an industrial lubricant: Microcrystalline wax reduces friction between mechanical components, protects metal surfaces and extends equipment lifespan, whilst also offering some rust-preventive properties. ‌Blending with other materials: Microcrystalline wax can be mixed with paraffin wax, mineral oil and other substances to improve lubrication performance; it is widely used as a processing aid in the rubber, plastics and textile industries.

Microcrystalline wax is primarily used as a functional additive in rubber and plastics processing to improve the processing properties of the material and the physical properties of the final product. ‌Role in rubber processing‌ ‌Enhancing weather resistance and anti-ageing properties‌: After vulcanisation, microcrystalline wax slowly migrates to the surface of the rubber, forming a dense, continuous physical protective film that effectively blocks the erosion of rubber molecular chains by ozone, oxygen and ultraviolet light, thereby delaying cracking and ageing. Role in plastics processing: Optimising flow properties: Acting as an internal lubricant, it reduces the viscosity of the plastic melt, improving mould filling and demoulding properties. Enhancing surface quality: It increases the gloss, abrasion resistance and anti-adhesion properties of the finished product, and is widely used in electronic product casings, packaging materials and similar applications.

Microcrystalline wax offers anti-corrosion protection, primarily through its physical barrier properties and chemical stability. Mechanisms of anti-corrosion protection and applications Formation of a dense protective film: Microcrystalline wax forms a continuous, dense, hydrophobic film on the surfaces of substrates such as metal, concrete or rubber, effectively preventing the ingress of corrosive agents such as moisture, oxygen, acids, alkalis and salts. Anti-ageing for rubber and metal: Used as a rust inhibitor in metal surface treatment to provide moisture-proof and anti-corrosion protection. Corrosion protection in packaging and coatings: Used in food packaging, paper impregnation and fruit coatings to enhance moisture-proof and anti- penetration properties, thereby extending shelf life.

Fischer-Tropsch wax offers several significant advantages when used in candles: Aesthetic benefits ‌Enhanced lustre: Fischer-Tropsch wax makes the candle surface smoother and ensures more uniform colour distribution, resulting in a bright visual effect during combustion, making it particularly suitable for decorative candles. ‌Reduced shrinkage and deformation: Its stable molecular structure minimises shrinkage during cooling, reducing the likelihood of dents or unevenness and improving yield. Burning performance benefits ‌Extended burn time: With a high carbon content and stable combustion, it is suitable for scenarios requiring prolonged burning, such as religious ceremonies or emergency lighting.

Fischer-Tropsch wax is widely used in plastics processing, particularly in industries such as injection moulding, extrusion and pelletising. 1. Main Functions Internal lubricant: Reduces intra-molecular friction in the plastic melt, improves flowability, and reduces torque and energy consumption. External lubricant: Reduces friction between the melt and the surfaces of metal equipment (barrels, screws, moulds), prevents adhesion, and improves demoulding performance. Dispersant: Helps pigments and fillers (such as calcium carbonate and talc) disperse evenly within the resin, preventing agglomeration. 2. Specific Applications Injection Moulding: Improves melt flow index, reduces injection pressure, minimises mould fouling, enhances demoulding efficiency, and produces smoother product surfaces. Extrusion: Reduces extruder current, minimises material build-up at the die, and improves output and dimensional stability. Pelletising: In masterbatches, aids pigment wetting and dispersion, and reduces filtration pressure drop.