Peta timbul, peta jenis ini menggambarkan bentuk permukaan bumi yang sebenarnya, misalnya peta relief. This goal is solved by degrading the PET bottle flakes—already during their first plasticization, which might be carried out in a single- or multi-screw extruder—to an intrinsic viscosity of about zero.30 dℓ/g by including small quantities of ethylene glycol and by subjecting the low-viscosity soften stream to an environment friendly filtration immediately after plasticization.
Clear products could be produced by rapidly cooling molten polymer under Tg glass transition temperature to kind an amorphous solid Like glass, amorphous PET forms when its molecules should not given sufficient time to arrange themselves in an orderly, crystalline style as the soften is cooled.
Dan berikut ini adalah gambar peta dunia lengkap berdasarkan benua besar yang ada di bumi. Due to the recyclability of PET and the relative abundance of publish-shopper waste in the type of bottles, PET is rapidly gaining market share as a carpet fiber.
Misalnya peta transmigrasi atau urbanisasi, peta aliran sungai, peta perluasan tambang, dan sebagainya. Chemical recycling of PET will change into price-efficient only applying excessive capability recycling strains of more than 50,000 tons/yr. Itulah beberapa gambar peta dunia lengkap dengan peta benuanya, semoga bermanfaat.
One strategy to alleviate this is to use a copolymer Comonomers equivalent to CHDM or isophthalic acid decrease the melting temperature and reduce the diploma of crystallinity of PET (particularly necessary when the material is used for bottle manufacturing).