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I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
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A polymer is a large molecule, or macromolecule, composed of many repeated subunits. These subunits, known as monomers, covalently bond together in a chain-like fashion, creating a structure with unique physical and chemical properties. Polymers can be naturally occurring, like cellulose in plants or proteins in animals, or synthetic, such as plastics and synthetic fibers. The versatility of polymers in terms of their composition, structure, and functionalities allows for a wide range of applications, from everyday household items to crucial components in various industries. The defining feature of polymers is their high molecular weight and the ability to tailor their properties for specific uses, making them an essential material in modern life.
Offset printing, primarily used for paper and cardboard, utilizes plates to transfer an image onto a rubber blanket and then to the printing surface. While traditionally not designed for fabric due to its texture and absorbency differences, advancements have allowed for adaptations like indirect transfer methods. These methods involve printing the design onto a special paper first, then transferring it onto fabric through heat and pressure. Direct offset printing on fabric remains challenging due to fabric stretch and ink absorption inconsistencies, making it less common than screen printing or digital printing for textiles. However, for large-scale fabric printing where consistency and color accuracy are paramount, adapted offset techniques may be considered, albeit with certain limitations and considerations such as fabric type and post-print processing.
Yes, you can glue PVC without primer, but it's not recommended for most plumbing or pressurized applications. The primer's role is to clean and soften the PVC surface, enhancing the solvent cement's bond strength. Skipping the primer might work for non-critical, low-pressure, or temporary setups, but it compromises the durability and reliability of the joint. For long-term or safety-critical applications, using both primer and solvent cement is advised to ensure strong and leak-free pipe connections.
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