• Tetraethyl Orthosilicate TEOS Crosile Si28 Si32 Si40

    Jul / 12, 2024

    Tetraethyl Orthosilicate TEOS Crosile Si28 Si32 Si40
    Ethyl silicate, an essential industrial orthosilicate, exists as a colorless, low-viscosity liquid with a silica content of 28.5%. Being insoluble in water, its hydrolysis necessitates the use of mixed solvents such as ethanol, along with appropriate catalysts. Ethyl silicate, denoted as A, serves as a ready-to-use silica precursor in numerous applications. Silica can be obtained through hydrolysis or condensation at high temperatures. The resulting silica is capable of bonding with various inorganic substrates, and this bonding can be achieved in situ through the control of certain parameters. Surfaces of glass, metals, fillers, and some synthetic fibers can be coated with a Teraethoxysilane layer using this method. Additionally, ethyl silicate functions as a crosslinking agent in silicone rubber systems and as a desiccant in sealant systems. Enhancing Properties: Improving Chemical Stability: The SiO2 ethyl silicate coating possesses exceptional chemical stability, resisting degradation by various chemicals. When formed on substrate surfaces using ethyl silicate, this coating acts as a barrier, protecting the substrate from external chemical attacks, thereby enhancing the overall chemical stability of the material. Enhancing Thermal Stability: Tetraethoxysilane, with its high melting point, exhibits remarkable thermal stability. Consequently, the SiO2 coating formed on substrates using ethyl silicate significantly improves their thermal stability. In high-temperature environments, this coating prevents substrate deformation or damage due to thermal stress. Improving Mechanical Properties: The SiO2 coating, renowned for its hardness and wear resistance, also reinforces the mechanical strength of the substrate. When a dense Ethyl polysilicate coating is formed on the substrate surface using ethyl silicate, it acts as a reinforcing phase, enhancing the substrate's tensile strength, compressive strength, and other mechanical properties. Scratch and Abrasion Resistance: The high hardness and wear resistance of the SiO2 coating make it ideal for improving a material's scratch and abrasion resistance. By forming a SiO2 coating on the substrate surface, it can withstand mechanical friction and scratching, thereby extending the material's lifespan.  Specifications Test Item Target Values(Spec, Limits) Appearance Colorless Transparent Liquid Chemical name Crosile® SI28 Crosile® SI32 Crosile® SI40 SiO2 Content 28% 32% 40% Flash Point 181°C 38°C Min.62°C Boiling Point 169°C 96°C 160°C Refractive Index 1.3830 1.00 1.397
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  • Application of White Carbon Black in Ink

    Jul / 01, 2024

    Application of White Carbon Black in Ink
    01 Enhancing Viscosity and Consistency Controlling the viscosity and consistency of ink is crucial during the ink preparation process. Due to its tiny particle size and large specific surface area, white carbon black forms an effective filling network in the ink, increasing the internal friction of the ink, thus effectively enhancing its viscosity and consistency. This plays a significant role in preventing ink separation during storage and use, ensuring the stability of the ink during the printing process. 02 Improving Sedimentation Resistance During long-term storage, pigments and fillers in ink may settle, affecting the uniformity and printing quality of the ink. Amorphous Precipitated Silica effectively improves the sedimentation resistance of ink. After dispersing in ink, white carbon black particles form a stable three-dimensional network structure, which hinders the settling of pigment and filler particles, maintaining the uniformity of the ink. 03 Enhancing Abrasion Resistance and Scratch Resistance During high-speed printing, the abrasion resistance and scratch resistance of ink are important factors that ensure the quality of printed products. The application of Precipitated Silica in ink can significantly improve the abrasion resistance and scratch resistance of printed products. This is due to the good hardness and strength of white carbon black, which can form a solid film layer after the ink dries, reducing wear and scratches on the surface of printed products. 04 Adjusting Glossiness The glossiness of ink directly affects the appearance and texture of printed products. By controlling the addition amount and dispersion degree of white carbon black, the glossiness of ink can be effectively adjusted. A higher addition amount or poor dispersion of white carbon black can lead to a decrease in the glossiness of ink, while an appropriate amount and good dispersion of white carbon black can maintain a certain glossiness of ink, meeting the needs of different printed products. 05 Improving Printing Adaptability Printing adaptability refers to the stability and applicability of ink under different printing conditions. The addition of Silicon Dioxide Provide can improve the rheological properties of ink, making it more suitable for different types of printing processes, such as screen printing, relief printing, and flexographic printing. In addition, white carbon black can also help ink achieve better adhesion and coverage on different printing media. Precipitated Silica Powder Type 120 140 165 185 195 Heating loss(105° 2h), % 4.0-8.0 Lgniting loss(1000° 2h), % ≤7.0 DBP Absorption,cm³/g 2.00-3.50 Sieve residue,% 45um≤0.5 pH(5% suspension) 6.0-8.0 SiO2 % Min,% ≥97.0 BET specific surface area,m²/g 120±15 140±15 160±15 180±15 190±15 Salt as NA2SO4,% ≤2.0 Pellet hardness -
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  • Introduction to the Characteristics and Uses of Polymerized Rosin

    Jun / 20, 2024

    Introduction to the Characteristics and Uses of Polymerized Rosin
    ① Name and Properties English Name: Polymerized Rosin Alternative English Names: Rosin, Polymerised CAS Number: 65997-05-9 Physical Properties: Yellow-brown amorphous solid. Polymerized rosin is primarily composed of dimers, along with a mixture of rosin and rosin hydrocarbons. It is characterized by light color, high softening point, non-crystallinity, high acid value, low hot water-soluble content, good oil solubility, and light lead acetate discoloration. Dimers account for 20% to 50% and are relatively stable, resisting oxidation. It is soluble in organic solvents such as toluene, gasoline, petroleum ether, chloroform, and dichloroethane. Properties Target Values (Spec Limits) Type PR 90 PR 115 PR 140  Appearance Yellow Transparent Solid  Color Gardner  ≤7 ≤10 ≤10 Softening Point (R&B)°C 88-93 110-120 135-145 Acid Value, mgKOH/g ≤165 ≥145 ≥140 Density (20°C, abt., g/cm³) 1.08-1.1 1.08-1.1 1.08-1.1 ② Chemical Formula or Molecular Formula and Structural Formula Molecular Formula: C40H60O4 (Note: This is a simplified or representative molecular formula, as polymerized rosin is a mixture, so the specific structure may vary depending on the degree of polymerization.) ③ Physical and Chemical Properties and Quality Indicators Softening Point: 90 to 120°C (This is the temperature range at which polymerized rosin begins to flow when heated.) Acid Value: 150 mg KOH/g (This is a measure of the acidic component content in polymerized rosin, typically expressed as the milligrams of potassium hydroxide required to neutralize 1 gram of the sample.) Other Quality Indicators: See the provided table. ④ Main Applications As a Tackifying Resin: Used in hot-melt, pressure-sensitive, and solvent-based adhesives to enhance adhesion and provide reinforcement effects. Improving Bonding Strength: Enhances the heat sensitivity of adhesive tapes and improves bonding strength. Reducing Product Costs: Can partially replace other costlier resins, such as terpene resin and petroleum resin. EVA Hot-Melt Adhesive: Provides optimal comprehensive performance when used in EVA hot-melt adhesives. The usage amount is typically optimized based on specific applications and desired properties, but 50% usage is often recommended, or 120 parts by mass for maximum peel strength.
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  • Introduction to DCPD Petroleum Resin and Applications

    Jun / 06, 2024

    Introduction to DCPD Petroleum Resin and Applications
    DCPD Petroleum Resin, a white thermoplastic resin with a low molecular weight, is derived from the polymerization of dicyclopentadiene (DCPD). This resin possesses unique properties that make it suitable for a wide range of applications. Properties of DCPD Petroleum Resin Color and Thermal Stability: It is a white resin that maintains its color stability even in high-temperature conditions. Excellent Compatibility: It exhibits good compatibility with various materials such as rubber, esters, polyurethanes, and epoxy resins. Modification Capabilities: As a modifier, it can reduce the polymerization force of epoxy resins, enhance the adhesion of coatings, and improve the shrinkage properties of cement and steel. Enhanced Wettability: It enhances the wettability of coatings, leading to improved flow and leveling properties of paint films. High Softening Point: The high softening point ensures good durability and heat resistance. Applications of DCPD Petroleum Resin Rubber Industry Used in butyl rubber damping sheets for improved damping effect and longer lifespan. Enhances the performance and durability of radial and bias tires. Provides elasticity and durability to inner tubes and other synthetic rubber products. Paint Industry Applied in marine paints for superior weather and corrosion resistance. Improves the gloss and durability of varnishes, alkyd, epoxy, and polyester paints. Enhances the adhesion and durability of metallic coatings like gold and silver paints. Used in adhesives and electrical engineering materials for improved bonding and electrical properties. Ink Industry Improves the color vibrancy and clarity of gravure and letterpress inks. Enhances the printing performance of UV inks, water-based inks, and other high-end inks. Plastic Industry Used as a modifier in plastic products to improve their physical and chemical properties. Paired with epoxy resins as a curing modifier to enhance their curing speed and performance.
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  • Chlorosulfonated Polyethylene Rubber

    May / 09, 2024

    Chlorosulfonated Polyethylene Rubber
    Chlorosulfonated Polyethylene Rubber (CSM), also known as Hypalon or CSPE, is a high-performance specialty rubber. It is an elastic material with a special chemical structure produced by chemical treatment of polyethylene as the main raw material through chlorination and chlorosulfonation processes. Due to the introduction of chlorosulfonyl active groups in its molecular structure, this rubber exhibits many unique properties. Key Performance Characteristics Excellent Chemical Resistance: Chlorosulfonated polyethylene rubber has good resistance to strong acids, bases, and various other chemical media. Outstanding Weatherability and Aging Resistance: It can be used for extended periods in various climatic conditions without aging, cracking, or deteriorating. Resistance to Ozone: It can resist ozone erosion, extending its service life. Good Heat and Cold Resistance: It maintains good elasticity and mechanical properties within a wide temperature range. Resistance to Oil, Flame, and Wear: It is not easily swollen in oily environments, has good flame retardancy, and excellent wear resistance. Electrical Insulation: It is an ideal insulating material for the electrical industry. Application Fields Packaging and Sealing Materials: Due to its excellent acid and chemical resistance, it is often used to manufacture various acid-resistant packaging materials and seals. Automotive Industry: Chlorosulfonated polyethylene rubber has extensive applications in the automotive industry abroad, such as in the manufacturing of fuel tanks, oil pipes, seals, and other components. Corrosion-resistant Equipment: In chemical, petroleum, pharmaceutical, and other industries, it is commonly used to manufacture linings, protective covers, and other components for corrosion-resistant equipment. Other Fields: It also finds applications in wire and cable, shipbuilding, aerospace, building waterproofing, and other industries. As a high-performance specialty rubber, chlorosulfonated polyethylene rubber has broad application prospects in many fields due to its unique properties. With technological advancements and process improvements, its performance and application areas are expected to expand further. Specifications Test Item CSM 30 CSM 40 CSM 45 Volatile(wt% less or equal) 1.5 1.5 1 Chlorine content(wt%) 40-60 33-37 23-27 Sulfur content(wt%) 0.8-1.2 0.8-1.2 0.8-1.2 Mooney viscosity( ML 1+ 4 100 °C ) 60-90 41-60 30-50 Tensile strength (Mpa more or equal) 25.0 25 20.0 Elongation at break(% more or equal) 450 450 400
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  • Precipitated Silica in Ink

    Apr / 24, 2024

    Precipitated Silica in Ink
    Introduction to Precipitated Silica Precipitated silica is a non-metallic material, mainly composed of silicon dioxide (SiO₂). It appears as a white powder and exhibits excellent chemical stability. It is insoluble in water and any solvent, non-combustible, and resistant to most acids and alkalis. Due to its small particle size and large surface area, it has high surface activity, providing good thickening, suspension, anti-settling, and rheological properties. Precipitated silica is commonly used as an industrial filler due to its unique physical and chemical properties. It finds wide applications in various fields including rubber, plastics, coatings, and inks. This article will focus on the application of precipitated silica in the ink industry, exploring how it enhances the performance of ink products.   Applications in Ink 01 Enhancing Viscosity and Consistency Controlling the viscosity and consistency of ink is crucial in the ink preparation process. Silicon Dioxide Provide, with its small particle size and large surface area, can form an effective filler network in ink, increasing internal friction and thus effectively improving ink viscosity and consistency. This is important for preventing ink stratification during storage and usage, ensuring ink stability during the printing process. 02 Improving Anti-Settling Properties During prolonged storage, pigments and fillers in ink may settle, affecting ink uniformity and print quality. Precipitated silica can effectively improve the anti-settling properties of ink. The principle lies in the dispersed precipitated silica particles forming a stable three-dimensional network structure in the ink, hindering the settling of pigment and filler particles, thus maintaining ink uniformity. 03 Enhancing Wear Resistance and Scratch Resistance In high-speed printing processes, wear resistance and scratch resistance of ink are essential factors in ensuring print quality. The application of precipitated silica in ink can significantly enhance the wear resistance and scratch resistance of printed materials. This is attributed to the good hardness and strength of precipitated silica, which can form a strong film layer after ink drying, reducing surface wear and scratches on printed materials. 04 Adjusting Glossiness The glossiness of ink directly impacts the appearance and texture of printed materials. By controlling the amount and dispersion of precipitated silica added, ink glossiness can be effectively adjusted. Higher amounts of precipitated silica addition or poor dispersion can lead to reduced ink glossiness, while an appropriate amount of well-dispersed precipitated silica can maintain ink glossiness to meet the requirements of different printed materials. 05 Improving Print Adaptability Print adaptability of ink refers to its stability and applicability under different printing conditions. The addition of precipitated silica can improve the rheological properties of ink, making it more suitable f...
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  • C5 Petroleum Resins in Adhesive

    Apr / 18, 2024

    C5 Petroleum Resins in Adhesive
    C5 petroleum resins, also known as C5 hydrocarbon resins, have become increasingly important as viscosity modifiers. Among them, the most common applications are in hot melt adhesives, pressure-sensitive adhesives, and the rubber tire industry. Petroleum resins are suitable for use in hot melt adhesives, pressure-sensitive adhesives, and rubber tires. They exhibit excellent compatibility with styrene block copolymers (SIS, SBS, SEBS, SEPS), natural rubber, synthetic rubber, EVA, and other materials. They also show good compatibility with natural viscosity-enhancing resins such as terpenes, rosin, and their derivatives, leading to various improvements in adhesive performance. In recent years, C5 petroleum resins have gradually replaced natural viscosity-enhancing resins due to their high peel adhesion strength, fast initial tack, stable bonding performance, moderate melt viscosity, good heat resistance, excellent compatibility with polymer matrices, and low cost. The characteristics of C5 petroleum resins in adhesive systems include: Good flowability, which improves the wetting of the substrate material. Excellent tackiness, with outstanding initial tack properties. Superior aging resistance. Optimal balance between cohesive strength and peel strength. Light color. Transparent, low odor, and low volatility. Product List Item Softening Point (°C) Color  Gardner Acid Value (Mg KOH/g) Specific Gravity (20/20°C) Melt Viscosity (BRF, @200°C, cps) Test Method ASTM E 28 ASTM D 1544 ASTM D 974 ASTM D 71 ASTM D 3236 HC 5100 95-105 #3-5 ≤1.0 0.92-0.99 200 max HC 52100A 95-105 #3-5 ≤1.0 0.92-0.99 200 max DCPD RESIN 95-120 #0-3 ≤0.05 0.92-0.99 170 max HC 5090 85-95 #4 ≤1.0 0.92-0.99 200 max HC 52100 100-105 #3-4 ≤1.0 0.92-0.99 250 max
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  •  R105 Rosin Resin: Road Marking Paint

    Apr / 16, 2024

    R105 Rosin Resin: Road Marking Paint
    Ecopowr new material has launched a special rosin resin product designed for road marking paint—R105. With its unique technological charm, this rosin resin brings a whole new change to road marking paint. R105 rosin resin for Hot Melt Road-Marking, with its special chemical structure, provides excellent adhesion and bonding strength for road marking paint. It can tightly adhere to the road surface, ensuring the durability and stability of the markings. Whether facing harsh weather conditions or complex road environments, R105 maintains stable performance, providing long-lasting protection for road markings. Specifications Test Items R105 Appearance & Color 2-4 Softening Point (R&B)℃ 103-107 Acid value.(mg KOH/g) ≤20 Solubility in Benzene(1:1) Clear R105 rosin resin also boasts outstanding gloss and waterproof properties. It enhances the glossiness of the markings, making them more visible and improving nighttime driving safety. Additionally, R105 effectively prevents water penetration, enhancing the durability of the markings, even in humid environments, maintaining clear lines. Furthermore, R105 rosin resin has filling and thickening functions. It can fill in tiny pores in the road marking paint, making the surface smoother. Moreover, R105 increases the viscosity of the paint, ensuring uniformity and stability during application, preventing paint loss and dripping. R105 rosin resin also exhibits excellent anti-corrosion, insulation, and adhesive properties. It effectively prevents corrosion and damage to the markings, prolonging their lifespan. Additionally, the insulation properties of R105 protect electrical facilities, enhancing the safety of road markings. With its outstanding performance and versatility, R105 rosin resin becomes a technological favorite in the field of road marking paint. It not only improves adhesion, glossiness, and waterproofing of the markings but also offers filling, thickening, anti-corrosion, and insulation functions. By using R105 rosin resin, road marking paint can better meet the demands of modern traffic, ensuring safe and smooth driving. We look forward to R105 rosin resin playing a greater role in the field of road marking paint, contributing more to the development of urban transportation.
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  • Amino Silane Coupling Agent Crosile® 792

    Mar / 21, 2024

    Amino Silane Coupling Agent Crosile® 792
    Crosile® 792 Aminoethylaminopropyltrimethoxysilane can be applied from water or organic solvent solutions or added directly to the blending resin. It mixes well with water and alcohols and is moderately soluble in aromatic solvents. However, its solubility in aliphatic solvents is low. Crosile® 792 polymerizes in water, so solutions should be prepared just before use. To prevent gelation, add the silane to water rather than the reverse. Adjusting the pH of the aqueous solution to around 4 with acetic acid can improve solution stability. Dilute solutions in organic solvents are also possible, with alcohols and aromatic solvents being the most suitable. However, avoid using aldehydes, ketones, acids, esters, and alkyl chlorides. Solutions containing water in organic solvents will only slightly enhance stability compared to water solutions of the silane. Crosile® 792 Trimethoxy[3-[(2-aminoethyl)amino]propyl]silane will cure effectively under typical high-temperature cycles used for curing most thermosetting resins. Proper curing usually occurs during the curing or molding of resin/glass laminates. For fabric or surface treatments, drying the silane is usually sufficient for effectiveness. However, for optimal performance, curing for 3 to 5 minutes at 130°C or higher is recommended. Exposure to temperatures above 130°C at some processing stage is crucial for developing maximum moisture resistance.
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