” >Acrylic resin Introduction Acrylic resin is a resin made from the copolymerization of acrylates, methacrylates and other olefinic monomers , By selecting different resin structures, formulas, production processes and solvent compositions, acrylic resins of different types, properties and applications can be synthesized. Acrylic resins can be divided into different types according to differences in structure and film-forming mechanism. Forthermoplastic acrylic resinand thermosetting acrylic resin.
” >The main absorption peak of acrylic resin, which is copolymerized with acrylate and methacrylate monomers, is outside the solar spectrum, so the system The resulting acrylic resin paint has excellent light resistance and outdoor aging properties.
” >Uses of Acrylic resin Thermoplastic acrylic resin does not undergo further cross-linking during the film formation process, so it is relatively It has a large molecular weight, good gloss and color retention, water and chemical resistance, fast drying, convenient construction, easy construction, recoating and rework. When preparing aluminum powder paint, the whiteness and positioning of the aluminum powder are good. Thermoplastic acrylic resin is widely used in automobiles, electrical appliances, machinery, construction and other fields.
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” >Thermosetting acrylic resin refers to having certain functional groups in the structure, and the amino groups added during the process of making paint The functional groups in resins, epoxy resins, polyurethanes, etc. react to form a network structure, and thermosetting resins generally have a low relative molecular weight.
” >Thermosetting acrylic paint has excellent fullness, gloss, hardness, solvent resistance, weather resistance, and does not discolor or turn yellow when baked at high temperatures. The most important application is to combine with amino resin to form amino-acrylic baking paint, which is currently widely used in automobiles, motorcycles, bicycles, coiled steel and other products.
” >Hazardous Chemical Safety Data Sheet of Acrylic Resin (msds) Health hazards of acrylic resin: Skin contact can cause skin irritation, discomfort and rash; eyes Contact may cause eye irritation, watering, or blurring; inhalation of this product may cause upper respiratory tract irritation, coughing, and discomfort, or unspecified symptoms such as nausea, headache, or weakness; ingestion of this product may cause specific symptoms of discomfort Such as nausea, headache, or weakness. Patients should go to the hospital for treatment immediately.
” >Suspension polymerization is a relatively complex production process, generally a method used to produce solid resin.Solid acrylic resin, which generally uses acrylic with methyl group The ester is dereacted and polymerized.Acrylic without methyl Generally, they have certain functional groups.The polymerization reaction is difficult to control during the reaction process, and it is easy to become sticky and cause the pot to explode. The general process is to Put the body, initiator and auxiliary into the reaction axe and then add distilled water to react. After reacting for a certain time and temperature, wash with water, and then dry. Filtering, etc. . The production control of its products is relatively Strict. If any of the links in the middle are not done properly, the resulting product will have a certain impact. Generally reflected in the color and the difference in molecular weight.
3. Ontology Aggregation
” >Ontology aggregation is a more efficient method Production process. Generally, the raw materials are placed In a special plastic film . Then it reacts into agglomerates, is taken out and crushed, and then filtered. Generally, solidacrylic acid produced by this method ResinThe purity is the highest among all production methods. His product stability is also the best, but its shortcomings are also full. Polymerized with benzene The acrylic resin is not very soluble in solvents. Sometimes the same monomers are the same The ratio is several times more difficult to dissolve using suspension polymer. And the dispersion of the pigment is also good Inferior to suspension polymerized acrylic resin .
4. Others Aggregation methods
” >Other polymerization methods solvent reaction, the solvent is used to make the intermediate substance during the reaction,After the reactor is ready, the solvent is removed.
�It is filtered. Generally, the solid acrylic resin produced by this method has the highest purity among all production methods. His product stability is also the best, but its shortcomings are also full. Polymerized with benzene The acrylic resin is not very soluble in solvents. Sometimes the same monomers are the same The ratio is several times more difficult to dissolve using suspension polymer. And the dispersion of the pigment is also good Inferior to suspension polymerized acrylic resin .
4. Others Aggregation methods
” >Other polymerization methods solvent reaction, the solvent is used to make the intermediate substance during the reaction,After the reactor is ready, the solvent is removed.
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