Superglue (cyanoacrylate adhesive) can work on PVC (polyvinyl chloride) to some extent, especially for small, non-structural applications where the bond does not need to withstand significant stresses or impacts. However, for more durable and stronger joints, especially in plumbing or structural PVC applications, using a solvent-based adhesive specifically designed for PVC is recommended. These adhesives create chemical bonds by slightly melting the PVC's surface, ensuring a more reliable and long-lasting weld than what superglue can provide. While superglue can be used for temporary fixes or lightweight PVC projects, for any application requiring strength and longevity, opting for a PVC adhesive is the better choice.

Natural polymers are large molecules composed of smaller building blocks called monomers, which are primarily sourced from plants and animals. These polymers are critical in nature for various biological functions and structural applications. Examples include cellulose, which is made from glucose units and is essential for the structure of plant cell walls; proteins, made from amino acid monomers, which serve as the building blocks of muscles, enzymes, and many hormones; and nucleic acids like DNA and RNA, composed of nucleotide monomers, which carry genetic information. Other significant natural polymers are starches, also based on glucose monomers, used by plants for energy storage, and natural rubber, comprised of isoprene units, valued for its elasticity. These substances are renewable and biodegradable, making them highly valued for sustainable materials and applications.

Removing PVC (polyvinyl chloride) from the waste system involves a combinatory approach of mechanical separation and chemical treatment. In a recycling facility, shredding and granulating the waste segregate PVC based on its density and size. Air classification or float-sink separation techniques can further purify the material. For chemical recycling, pyrolysis transforms PVC into smaller hydrocarbons, which can be reused in new PVC production or as fuel. Public awareness and appropriate disposal are critical, as improper disposal can lead to environmental damage due to PVC's chlorine content. Advanced recycling technologies and encouraging the use of recyclable materials are vital steps toward sustainability.