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In polyester modified silicone resin coatings, the introduction of NC2 pressure ratio NHC3 pressure Si COMe and SiCOCH pressure ratio OMe can achieve low-temperature curing. For example, 100 parts by mass of polyester [40 0: 70. Copolymer prepared from 4 parts of dimethyl terephthalate and trilight methyl propanol, 150 parts of methyl phenyl silicone resin intermediate, 167 parts of cellulose acetate, and 0 Three parts of isopropyl methacrylate were reacted at 150 ° C for 4 hours, and then di ...
Product Name: Methyl Propyl MTQ Silicone ResinItem No.: SilibasePCR-1640 Features and Benefits:Compatible with many organic solventsWater-proofFilm-forming and long-lastingEnvironmental friendlyDescription:The product adopts an environmentally friendly production process without adding aromatic solvents such as toluene and xylene. Soluble in low viscosity silicone oils and organic solvents. This highly durable material provides excellent water repellence and excellent film-forming. It can be use ...
Product Name: Stannous OctoateItem No.: SilibaseCT-SOT9CAS No.: 301-10-0Molecular Weight: 405.11Molecular Formula: C16H3004SnProduct Usage:SilibaseCT-SOT9 Stannous Octoate is often used as a good agent for polyurethane products and room temperature curing silicone rubber. Because it is a trivalent tin compound, it is easily oxidized to tetravalent tin compound after foaming, and it can play the role of antioxidant in the foam, and it has no adverse effect on the foam. It is also used as a cataly ...
Product Name: Methyl MQ Silicone ResinItem No.: SilibasePCR-1600 FeaturesCompatible with many organic solvents Water-proof[INCI/CTFA]: TrimethylsiloxysilicateBenefitsFilm-forming and long-lasting Environmental friendlyDescriptionThe product adopts an environmentally friendly production process without adding aromatic solvents such as toluene and xylene.This highly durable material provides excellent water repellence and excellent film-forming. It can be used in ski ...
May 1st is a holiday shared by working people around the world every year.International Labor Day, also known as May Day or May Day, is a national holiday in over 80 countries around the world.According to the "Notice of the General Office of the State Council on the Arrangement of Partial Holidays in 2023 [2022] No. 16" issued by the State Council on December 8, 2022, Labor Day in 2023 will be continuously off for five days.Labor Day holiday arrangement for May 1st, 2023: From April 2 ...
28 parts of saturated polyester (obtained from dimethyl terephthalate, trimethylpropyl carbonate and neopentyl glycol condensation) with 8% OH by mass, 48 parts of dimethyl phenyl silicone resin intermediate with 7% (mass fraction) OH by mass, 30 parts of cellulose acetate and a small amount of transesterification catalyst are reacted at 150 ° C for 4h, and the solid content is 55% (adjusted with cellulose acetate). Take 54 portions of the product and add a diluent composed of 23 portions of bu ...
The intermediate can be obtained by hydrolysis reaction alone with RSiCb or with R-core iCl2 CR as the acceptor and aryl groups in the presence of organic solvents. The production of this type of silicon modified polyester generally involves synthesizing polyester prepolymers containing silyl groups first, and then adding organosilicon intermediates containing silyl groups to the polyester prepolymer. From the perspective of process control, polyester prepolymers can only be added to organic sil ...
31. 8 parts by mass of saturated polyester (from 34 95 parts of phthalic anhydride, 32.06 parts of trimethyl propionate, 5.56 parts of ethylene glycol, and 35 01 parts condensed from terephthalic acid, 41 59 parts of silicone resin intermediate [from 64 88 PhSiCb, 7 9 parts of Me heart Cl2 were obtained by alcohol hydrolysis condensation with MeOH-H20, with a viscosity (25 ° C) of 384mPa • s and a MeO content of 14 65% (mass fraction), 24.04 parts of AcOCH and 0.02 parts of Ti (OB) were subjec ...
The macromolecular copolymerization modification method is a method of preparing organosilicon modified polyols by starting from siloxane intermediates containing SiOH or SiOR and conducting condensation reactions with pre made polyols containing C-OH groups.Synthesis process of silicone modified polycarbonate resin:The synthesis of polyester resin prepolymers involves the addition of polyols such as trimethylpropanol, diethylene glycol, and neopentyl glycol, as well as binary acids such as phth ...
At present, there are two main methods for preparing silicone modified polyester resin: physical blending and chemical copolymerization. Generally speaking, the performance of chemically modified resins is superior to that of physical modified resins.Physical blend methodsThe physical blending method is a method of mixing polyester resin and silicone resin through physical methods. The physical blending method can be further divided into two types: simple blending method and adding a third phase ...