Method of Selecting Pvc Garden Hose
Although the general cheap PVC garden hose is also processed by PVC material, also known as PVC pipe, there are braided layers inside, but the service life, appearance, odor, compressive strength, tensile strength, working pressure and so on are significantly different.
The first is the odor, which is emitted by the polybrominated diphenyl ether contained in the inferior polyvinyl chloride (PVC) materials. The harm of polybrominated diphenyl ether to human beings and the natural environment is becoming more and more serious. Its odor has strong persistence and strong fat solubility, which is harmful to human liver and nervous system, and interferes with thyroid endocrine. Easy to cause cancer.
Second, the PVC garden hose has poor compressive effect, poor bonding strength, cold weather is easy to harden, holding like a wooden stick, easy to break; although some pipes feel very soft in winter, it is added cold-resistant plasticizer when the PVC garden hose is produced, the plasticizer is phthalate ester, which is a chronic poison to the human body, easy to cause liver and kidney function decline, red blood cell reduction, mutagenicity and mutagenicity. Carcinogenicity.
The third PVC garden hose braiding layer is made of inferior polyester material. The inner, outer and middle braiding layers are not well bonded and easily peeled off, which affects the working pressure and service life.
