How to use Silane Coupling Agent Aminopropyltriethoxysilane Crosile550‎ ‎ ECOPOWER Crosile®550 silane coupling agent, gamma-aminopropyltriethoxysilane, a versatile amino-functional coupling agent may be an excellent candidate for use in a range of broad applications to provide superior bonding between inorganic substrates and organic polymers. Chemical Formula: H2NCH2CH2CH2Si (OC2H5)3   ‎ 1. ‎‎Preprocessing packaging method‎ ‎Put the filler into the solid mixer (high-speed solid mixer HNSHEL or V-type solid mixer, etc.), spray the above silane solution directly on the filler and stir, the higher the rotation speed, the better the dispersion effect. Generally, stir for 10-30 minutes (the slower the speed, the longer the time), and the filler should be dried at 120 degrees Celsius (2 hours). ‎ ‎ ‎ ‎ 2. Silane coupling agent Crosile550 aqueous solution‎ ‎(Glass fiber surface treatment agent): Glass fiber surface treatment agent often contains: film-forming agent, antistatic agent, surfactant, coupling agent, water. The amount of coupling agent Crosile550 is generally 0.3%-2% of the total glass fiber surface treatment agent. First, the pH value of the 5-fold aqueous solution is adjusted to a certain value with an organic acid or salt. With good agitation, add the silane until clear, then add the rest of the ingredients. For insoluble silanes, isopropanol can be used to aid dissolution. During the drawing process, the glass fiber surface treatment agent is sprayed on the glass fibers and dried to remove the solvent and water. ‎ ‎ ‎ ‎ 3.‎‎Background Law‎ ‎5%-20% ‎‎Silane coupling agent Crosile550 solution is applied to the surface of the substrate by the above-mentioned treatment methods such as coating, brushing, spraying, and dipping. Remove and dry at room temperature for 24 hours, preferably 120°C. 15 minutes. ‎ ‎ ‎ ‎ 4. ‎‎Direct Join Method‎ ‎Silanes can also be added directly to filler/resin mixtures. When the resin and filler are mixed, the silane can be sprayed directly into the mixture. The amount of coupling agent is generally 0.1%-2% of the amount of filler (determined according to the diameter of the filler). The silane-added resin/filler is then molded (extruded, compression molded, coated, etc.). ‎  

Why does tackifying resin increase tack?   Tackifier resins refer to small molecular compounds that can improve the viscosity of rubber materials, especially the surface viscosity. Usually, the relative molecular mass of these small molecular substances is between several hundred and ten thousand, and they have a high glass transition temperature. According to their sources and synthetic routes, they can be mainly divided into two categories: natural products and their derivatives and synthetic resins. Tackifying resin is mainly used for polymer modification, it is widely used in adhesives, coatings, inks and as rubber compound, asphalt modifier and polyolefin modifier.   Tackifying resin is one of the indispensable materials in the production process of rubber products and tires. A comprehensive understanding of tackifying resin is conducive to the selection of different types of raw materials according to different situations in production. Generally speaking, natural series resins include rosin and terpene resins; synthetic series resins include polymer C5 petroleum hydrocarbon resins, C9 petroleum resins. As polymer modifiers, tackifying resins are rarely used alone, but in most cases as a compounding agent to increase polymer adhesion, increase initial viscosity, and reduce operating or processing viscosity.

In 2022, our ECOPOWER will increase the production of Crosile®1891 3-mercaptopropyltriethoxysilane, which has completed the plan of 400T/year and will be put into production one after another. Combined with customer and factory feedback, understanding the product can help enterprises in the industry in the following aspects：   1. Crosile®1891 3-Mercaptopropyltriethoxysilane is especially suitable for sulfur vulcanized and metal oxide vulcanized elastomers. It chemically bonds inorganic fillers such as silica, clay, mica, and talc with rubber, thereby increasing the tensile stress, tensile strength, tear strength, and tensile strength of inorganic filler-reinforced elastomers. Crack strength and other properties. Strength, heat resistance, abrasion resistance, resilience, compressibility and vulcanization time, etc. Compared to Crosile®189, this product and materials made from inorganic fillers have better storage stability. Recommended usage: Add Crosile®1891 immediately after inorganic filler and rubber, mix well, then add other ingredients including zinc oxide and stearic acid. The additional amount is 0.5%-1.5% of the inorganic filler.   2. Crosile®1891 mercaptopropyltriethoxysilane can replace general polysulfide silane. In low rolling resistance tires and rubber roller formulations, only lower levels can achieve the same performance.   3. Crosile®1891 (3-mercaptopropyl) triethoxysilane can be used as a tackifier in the formulation of coatings and adhesives, and can also be used in the modification of polyurethane adhesives.   4. Crosile®1891 silane can be used as adhesion promoter, surface modifier, cross-linking agent and dispersant, mainly used to improve the binding force of inorganic mineral powder materials and fibers to high molecular polymers (dendrites). Adhesion and water resistance of capacitors and resin layers to inorganic substrates.

Precipitated Silica results in the structuring of the silicone rubber, mainly based on a large number of hydrogen bonds between Precipitated Silica and high molecular weight polysiloxanes.   Reinforcing fillers for silicone rubber can be divided into reinforcing fillers and non-reinforcing fillers according to the reinforcing effect. The former has a diameter of 10~50nm and a specific surface area of ​​70~400m2/g. The effect is better; the latter is usually 300~10000nm, the specific surface area is below 30m2/g, and the reinforcement effect is poor. The reinforcing filler used in silicone rubber mainly refers to synthetic Precipitated Silica, also known as Precipitated Silica. Precipitated Silica is divided into fumed Precipitated Silica and precipitated Silica.   Fumed Precipitated Silica The size, specific surface area, surface properties and structure of fumed Precipitated Silica particles are related to the ratio of raw gas, combustion rate and residence time of SiO2 core in the combustion chamber. The finer the fumed Precipitated Silica particles, the larger the specific surface area and the better the reinforcement effect, but the worse the performance. On the contrary, the particles are coarser, the specific surface area is smaller, and the enhancement effect is poor, but the operability is better. Fumed Precipitated Silica is one of the most commonly used silicone rubber reinforcing agents. The rubber compound reinforced with it has high mechanical strength and good electrical properties after vulcanization. Fumed Precipitated Silica can be used in combination with other reinforcing agents or weak reinforcing agents to prepare rubber compounds with different application requirements.   SAI800 High Anti Yellowing Silica in Silicone Rubber » Medium particle size: 10-14um and BET specific surface area 130-160 m²/g   SAI779-1 Reinforcing filler Silicone Rubber » Medium particle size: 10-14um and BET specific surface area 150-180 m²/g   SAI779 Good Processing Precipitated Silica in Silicone Rubber » Medium particle size: 10-14um and BET specific surface area 1120-160 m²/g    

In the first quarter of this year, the net profit of listed companies in the silicone field generally achieved positive growth. "The price of silica gel will continue to rise this year, mainly driven by factors such as the boost in global chemical product market demand after the impact of the new crown pneumonia epidemic, the recovery of industry demand, and the domestic 'dual control' policy. It will cause supply to closely follow demand, so the increase will not be too large." Hong Qianjin, a researcher at the Academia Sinica, said in an interview with a reporter from China Business News that the current large-scale expansion of the company's silica gel project will not cause excess production capacity. Due to the low per capita GDP of emerging market countries, there is still a large gap and growth prospects in per capita organic silicon consumption compared with developed countries. Therefore, emerging market countries have a large market demand space, which is conducive to balancing the gap between my country's organic silicon export and production capacity. Over the past two years, the focus of global manufacturing has shifted to China. Due to the strong export of terminal downstream products, new application scenarios in the market continue to expand, and demand continues to grow; in addition, silica gel is still concentrated in large and medium-sized production enterprises. At the same time, from the perspective of the international market, the imbalance between supply and demand in the global shipping market has rapidly changed from oversupply to undersupply. The import dependence of European, American and Southeast Asian countries on Chinese silicone products continues to increase. Domestic enterprises export well, prices rise, and overseas sales are more successful. The growth rate of the industry has increased significantly.

Different type of Hydrocarbon resin C9 from ECOPOWER as below: 1.Thermal process C9 resin  HT Series (Thermal process C9 Petroleum resin is obtained by cracking and polymerizing @ 140-210 ℃ from C9 fraction)   C9-Hot Polymerization Item Softening Point(°C) Color Gardner Acid Value(Mg KOH/g) Lodine Value(gl/100g) ASH Content% Test Method ASTM E 28 ASTM D1544 ASTM D 974 ASTM D 1959 ASTM D 1063 HT-9100 95-105 8#-18# ≤1.0 Max. 170 1.07-1.13 HT-9110 100-110 8#-18# ≤1.0 Max. 170 1.07-1.13 HT-9120 110-120 8#-18# ≤1.0 Max. 170 1.07-1.13 HT-9130 120-130 8#-18# ≤1.0 Max. 170 1.07-1.13 HT-9140 130-140 8#-18# ≤1.0 Max. 170 1.07-1.13 2.C9 resin Catalytic-polymerization Hydrocarbon resin(HC Series) C9-Cold Polymerization Item Softening Point(°C) Color Gardner Acid Value(Mg KOH/g) Specific Gravity(20/20℃) Lodine Value(gl/100g) ASH Content% Test Method ASTM E 28 ASTM D1544 ASTM D 974 ASTM D 71 ASTM D 1959 ASTM D 1063 HC-9110 100-110 4#-7# ≤1.0 1.07-1.13 Max. 30 Max.0.05% HC-9120 110-120 4#-7# ≤1.0 1.07-1.13 Max. 30 Max.0.05% HC-9130 120-130 4#-7# ≤1.0 1.07-1.13 Max. 30 Max.0.05% HC-9140 130-140 4#-7# ≤1.0 1.07-1.13 Max. 30 Max.0.05% 3.Hydrogenated C9 petroleum resin(Water White Resin,Color Gardner #0) Hydrogenated Hydrocarbon Resin C9 Item Softening Point(°C) Color Gardner Heat Stability(@180°C，4h） ASH Content% Test Method ASTM E 28 ASTM D 1544 ASTM D 1209 ASTM D 974 HY-6100 95-105 #0-1 MAX.150 MAX.0.1 HY-6110 100-110 #0-1 MAX.150 MAX.0.1 HY-6120 110-120 #0-1 MAX.150 MAX.0.1 HY-6130 120-130 #0-1 MAX.150 MAX.0.1 HY-6140 130-140 #0-1 MAX.150 MAX.0.1 HY-9105 95-105 #0-1 MAX.150 MAX.0.1 HY-9110 100-110 #0-1 MAX.150 MAX.0.1 4.Aliphatic modified C9 aromatic resin C521100 Recommendation Application   C9 Petroleum Hydrocarbon Resin Application Base Polymer Product Recommended Carton Sealing Adhesive EVA HC-9110 Woodworking Adhesive EVA HC-9110, HC-9120, HC-9130 Hot Melt Adhesive Film EVA HC-9110, HC-9120 Shoe Adhesive SBS, CR HC-9120, HT-9100 Alkyd Paint Long oil alkyd resin HC-9120, HT-9120 Aluminium Paint Aluminium paste HC-9100, HC-9120 Off-Set Printing Ink Phenolic resin HC-9120, HC-9140, HC-9120, HT-9140 Rubber Compounding NR/SBR HC-9100, HT-9100 Asphalt Modification Asphalt HC-9120, HC-9140, HC-9150, HT-9120, HT-9140 Concrete Wax, Solvents HC-9100, HC-9120, HT-9120

Silane coupling agent has played a great role in coatings, rubber and other industries, especially its excellent adhesion, which has played a significant role in product production and processing. We know that silane coupling agents are mainly used to improve the adhesion of inorganic base materials, such as metal, glass products, etc., but have little effect on organic base materials. The self-polycondensation in the silane part of the silane coupling agent can form a spatial network structure independently, thereby increasing the crosslinking density of the coating and the chemical resistance of the coating. At the same time, the other end of the silane reacts with the resin system and can be cross-linked with the resin, so the silane can act as a bridge between the resin and the substrate, thereby increasing the adhesion. In addition, the silane in the silane coupling agent has another effect, that is, it can be used to treat the pigment and filler to reduce the viscosity of the system.

Functional silanes are widely used in rubber processing, adhesives, composite materials, metal surface treatment and building waterproofing. A class of functional silanes, mainly used in the rubber industry; it can effectively improve the binding ability of silica fillers and rubber molecules, and can promote rubber vulcanization. At the same time, it has the functions of coupling agent and accelerator vulcanizing agent, and has become the most widely used in radial tire production. important raw material. According to Markets and Markets data, the global functional silane market will increase from US$1.33 billion in 2015 to US$1.7 billion in 2020, with a CAGR of 5% from 2015 to 2020; among which, the strong demand for silane in the Asia-Pacific region is driving the global silane market. main factor for growth. According to SAGSI statistics, in 2019, my country's functional silane production capacity is about 430,000 tons/year, and its output is about 279,000 tons. It is already the world's largest producer of functional silanes. SAGSI estimates that by 2023, my country's total output of functional silanes will increase. It will reach nearly 390,000 tons, and the global output will further increase to 72.3%; in 2019, the domestic sulfur-containing silane output will be 89,700 tons, accounting for 32.2% of the output, which is the largest variety of functional silane production in my country. Considering the gradual implementation of domestic green tire regulations and the gradual maturity of the new energy vehicle market, we estimate that the annual domestic output of sulfur-containing silane is expected to reach 125,600 tons in 2023. In addition, with the steady development of rail transit, composite materials and carbon fiber, and building waterproofing industries, the demand space for functional silane industry will be broader in the future.

After the Spring Festival, there was short-term replenishment downstream, and the market demand had a short-term improvement. In addition, the rise in raw materials supported the overall increase in the price of C5 petroleum resin. However, the downstream infrastructure was not fully implemented in February. Rising and market demand is sluggish, and manufacturers are under great inventory pressure. Based on the above analysis, the domestic C5 petroleum resin cost and supply are not as good as the demand, and the market continues to be weak. According to customs data, from January to February 2022, the export volume of petroleum resin with domestic tariff number 39111000 was 56116.7 tons, compared with 2021. From January to February, there was a slight increase of 56,270 tons, but in view of the continuous decline in domestic production in March, it is expected that the export volume of petroleum resin may continue to decline slightly in March. In the second quarter of 2022, the price of cracked C5 will enter a downward channel, the cost support of C5 petroleum resin will weaken, and the inventory of domestic manufacturers is high, and the consumption of market resources will still take time. At present, the market demand has not improved, and the market still needs to wait and see the changes in the epidemic situation. Therefore, the C5 petroleum resin may maintain a weak market in late April, and the market may usher in a turnaround in May.