Petrochemical Products - Others

During pigment processing, micro-wax effectively enhances pigment flowability and dispersion stability, preventing sedimentation, caking or agglomeration of pigment particles during storage or processing. This ensures uniform colour and stable performance in end products such as coatings, inks and plastics. Its specific functions are manifested in the following aspects: Enhancing dispersibility: Micronised wax's fine particles coat the pigment surface, reducing interparticle attraction and facilitating uniform dispersion within the matrix. ‌Improved processing performance: Acting as a lubricant, it reduces friction between pigments and processing equipment (such as extruders and mixers), lowering energy consumption and enhancing production efficiency.‌ ‌Enhanced end-product properties: In coatings and inks, micro-wax synergises with pigments to significantly improve coating abrasion resistance, scratch resistance, and surface gloss.‌

The mechanism and advantages of microcrystalline wax in metal lubrication lie in: Its fine crystalline structure enhances the gel strength, adhesion, and protective properties of grease, thereby forming a uniform, resilient oil film on metal surfaces that effectively isolates friction pairs and reduces direct contact; Simultaneously, its excellent adhesion and toughness maintain stability under dynamic loads, suppressing oil film rupture.‌ Compared to conventional paraffin wax, microcrystalline wax exhibits superior flex resistance and plasticity, enabling its lubricating film to better accommodate deformation in metal components. This makes it particularly suitable for applications demanding flexibility and impact resistance.‌

The application of microcrystalline wax in packaging paper manifests primarily in the following aspects: Firstly, it imparts gloss and water- repellent properties to the paper, enhancing both the product's visual appeal and protective capabilities. Secondly, as a coating, microcrystalline wax strengthens the packaging paper's resistance to moisture, grease, and adhesion, making it suitable for scenarios requiring isolation from dampness and oils. Additionally, microcrystalline wax improves paper flexibility and heat-sealing properties, making it more suitable for specialised packaging materials such as cardstock and corrugated board. This application not only enhances packaging functionality but also extends product shelf life.

The core advantages of micronized wax in polishing lie in: 1. Smoothness and gloss: Micron-sized particles effectively fill minute scratches and irregularities on paintwork or material surfaces. When the polisher evenly distributes and presses these particles into micro-pores, the surface becomes exceptionally flat. This concentrates light reflection, producing a deep, mirror-like lustre. 2. Superior protective properties: Wax inherently possesses hydrophobic qualities. Upon forming an ultra-thin protective film on the surface, it effectively shields the underlying material from erosion by contaminants such as water, acid rain, ultraviolet radiation, and dust. 3. Reduced Friction and Scratch Resistance: Particularly PTFE micronized waxes exhibit an exceptionally low coefficient of friction. Following polishing, this wax film renders surfaces smoother, less prone to dust adhesion, and provides moderate resistance against minor scratches. 4. User-Friendly Operation: Micronized waxes typically disperse more readily in solvent or emulsion formulations, yielding a uniformly textured final polish. During application, they generate minimal dust, exhibit excellent workability, and are relatively straightforward to wipe clean.

Oxidized polyethylene wax serves as a key multifunctional additive in PVC film processing, primarily employed to optimise processing performance and enhance product quality. Principal Functions and Effects Lubrication and Processing Performance Enhancement: OPE wax balances internal and external lubrication, reducing friction between PVC melt and equipment, minimising plasticisation delays, and increasing extrusion speed and production efficiency. Its polar groups also enhance compatibility with PVC molecular chains, preventing processing issues caused by excessive external lubrication. ‌Improved Dispersibility and Stability‌: In highly filled formulations, OPE wax adsorbs fillers and pigments, preventing agglomeration and enhancing dispersion efficiency to ensure uniform product performance.‌ Simultaneously, it synergises with thermal stabilisers by absorbing decomposed HCl, extending the processing window and reducing PVC thermal degradation.‌

Micronized wax primarily functions as a lubricant and processing aid in PVC extrusion, significantly enhancing processing performance and product quality. Mechanism and advantages of micronized wax in PVC extrusion: Micronized wax functions as both an external and internal lubricant during PVC extrusion, reducing intermolecular friction and enhancing melt flow. This increases extrusion rates while minimising equipment wear. Its spherical structure facilitates the formation of a uniform lubricating film, thereby reducing surface defects in the finished product and improving surface finish.

Micronized wax enhances ink performance through the following mechanisms: Improves surface properties: Reduces the coefficient of friction on printed surfaces, enhancing scratch resistance and anti-adhesion properties. Particularly suitable for flexographic, gravure, and offset printing processes. Optimises dispersibility and compatibility: Regular spherical particles disperse readily within ink systems without heating and exhibit excellent compatibility with pigments. PTFE-modified variants further enhance abrasion resistance. ‌Adjust gloss levels: Certain products (e.g., matting micronized wax powders) achieve a matte finish while maintaining coating uniformity.

Micronized wax is a functional additive widely employed in industrial paints to enhance the surface properties of the paint film, characterised by its fine particle size and uniform distribution. Primary Functions and Advantages ‌Enhanced Surface Properties‌: Micronized wax fortifies industrial paints against scratching, adhesion, and abrasion while imparting a smooth tactile feel. For instance, in coatings for steel structures or machinery, this reduces damage from routine friction.‌ ‌Improved Application Process‌: Incorporating micronized wax into formulations optimises rheological properties, yielding more uniform coatings and minimising air bubbles or orange peel effects. Certain micronized wax also offer matting effects, making them suitable for matt or semi-gloss industrial paints.‌ ‌Broad Adaptability: Micronized wax are compatible with solvent-based, water- based, and powder coating systems, demonstrating particular efficacy in industrial paints, can coatings, and wood finishes. Their spherical particle structure facilitates easy dispersion, allowing direct incorporation without complex pre-treatment.‌

Microcrystalline wax offers core advantages as a mould lubricant: Firstly, its excellent heat resistance and lubricity enable it to form a stable film during high-temperature injection moulding or die casting, reducing friction between the mould and moulded material, preventing sticking, and enhancing demoulding efficiency. Secondly, its good adhesion and film-forming properties ensure uniform coverage of the mould surface, providing sustained lubrication even within complex geometries and reducing mould wear. Furthermore, its high gel strength and crack resistance help maintain structural integrity during repeated thermal cycles, extending mould service life. In practical applications, microcrystalline wax is commonly employed as a pure product or in compound form: For instance, in rubber or plastic moulds, it may serve directly as a release agent or be blended with paraffin wax to enhance the latter's flexibility; in metal die casting, its lubricating properties reduce surface defects and improve product finish.

The primary functions of microcrystalline wax in sealants: Anti-adhesion and stain resistance: Surface protection: Forms an extremely thin, transparent wax film on the surface of cured sealants (such as silicone or polyurethane sealants). Contamination Prevention: This wax film effectively prevents contaminants such as construction site dust, cement slurry, and paint splatter from adhering to the uncured sealant surface, maintaining the joint's aesthetic appearance and cleanliness. Ease of Cleaning: Even if contaminants do adhere, they are significantly easier to wipe away. Controlling the Curing Process: For certain moisture-curing sealants (such as single-component silicone sealants and polyurethane sealants), the microcrystalline wax film on the surface can moderately slow the rate at which the top layer comes into contact with atmospheric moisture. Prevents ‘skin formation’: Avoids premature surface hardening that leaves the interior liquid, ensuring uniform and complete curing from the inside out. This delivers superior overall performance.

The moisture and oil repellency of microcrystalline wax primarily stems from its chemical inertness and physical barrier properties. It forms a continuous, dense coating that effectively blocks the penetration of moisture and oils. Its low permeability and high adhesion ensure the coating remains intact and resistant to flaking or peeling, thereby providing enduring protection across diverse substrates. In the packaging sector, microcrystalline wax is extensively employed for wax coating paper and cardboard. For instance, coating packaging paper with microcrystalline wax significantly enhances moisture resistance and oil repellency. This makes it suitable for applications such as frozen food cardstock and corrugated boxboard, preventing contents from becoming damp or oil-permeated. In food packaging, it is also employed in milk cartons, meat coatings, and bread wrapping paper, serving to isolate against moisture and oil penetration.

Microcrystalline wax, as a key component in coating formulations, primarily serves the following functions: Superior water resistance and moisture barrier: Possessing a fine crystalline structure and high melting point, microcrystalline wax forms a dense, flexible hydrophobic film that effectively blocks moisture and humidity, protecting the contents. This is crucial for outer packaging of foodstuffs, pharmaceuticals, and frozen products. Superior anti-adhesion and separation properties: Used in release liners or packaging papers for sticky products (e.g., adhesive tapes, adhesives, confectionery) to prevent adhesion between the product and the paper. Enhanced gloss and smoothness: Incorporation into the coating layer significantly improves the surface gloss and printability of the paper, resulting in a more refined appearance. Improved abrasion and scratch resistance: Wax coatings shield printed graphics, reducing wear during transport and handling. Enhanced flexibility: Prevents tearing during folding or forming processes for paper and cardboard.

The rust-preventive mechanism and advantages of microcrystalline wax lie in its high molecular weight structure and adhesive properties.‌ Its chemical composition, featuring long-chain naphthenic hydrocarbons, enables thorough wetting of metal surfaces upon melting. Upon cooling and solidification, it forms a continuous, resilient film that effectively blocks environmental moisture and electrolytes; Furthermore, microcrystalline wax exhibits superior gel strength and adhesion compared to ordinary paraffin wax, enhancing the coating's resistance to wear and peeling. This makes it particularly suitable for protecting metal components in dynamic or vibrating environments. ‌Specific applications include rust prevention for metal products, thickening industrial greases, and rubber protection.‌ For example: Direct application as a short-term rust-preventive coating or impregnation treatment for metal products; As a thickening agent in greases to enhance sealing properties and weather resistance; Preventing surface chalking and cracking in rubber goods, thereby indirectly aiding rust prevention.‌

Microcrystalline wax is employed in packaging paper primarily for the following purposes: Exceptional moisture and water barrier properties: It effectively prevents the penetration of water vapour and liquid water, safeguarding contents from dampness. This constitutes its core function. Enhanced gloss and aesthetic appeal: It imparts a lustrous finish to the packaging paper surface, elevating the perceived quality of the product's appearance. Enhanced abrasion resistance and durability: The wax coating increases the mechanical strength of the paper surface, reducing wear during transportation and handling. Typical application areas include: Industrial packaging Rust-proof packaging paper for metal products Moisture-proof inner liners for fertilisers and chemical products Sealing layer for composite paper cans.