Plastik na raba i bilong wankain polima samting. Ol i gat bikpela hap bilong kabon na haidrojen atom. Ol narapela i gat liklik mak bilong oksijen, naitrojen, klorin, silikon, fluorin, salfa na ol narapela atoms{{2} ol samting bilong ol i stap long en i spesel na ol i no inap long mekim ol samting bilong ol i stap long en i spesel na ol i no inap long yusim ol i spesel{3}”. deformed. The hardness of the rubber is not high, it is elastic, it can be stretched and lengthened, and the stretching can be restored to its original state. This is due to their different molecular structures. Another difference is that plastic can be recycled and reused multiple times, while rubber can not be recycled directly. It can only be processed into reclaimed rubber before it is available, so see long hia long kliagut long klostu rilesensip bilong ol. Rabber i save yusim planti bikos long ol pasin bilong en, namba wan
1) thermal konduktiv raba em i wanpela nogut kondukta bilong hat, na hat konduktiviti bilong en i olsem 2.~6{7}}28 watts/m2·{4}}K taim tiknes em 25 mm{10}} Em i wanpela gutpela samting bilong pasim raba i kam insait . i kamap gutpela moa, na ol bai daunim thermal konduktiviti i go daun long 0.4~2.0 wat. Eni pat blong raba we oli stap yusum i save mekem hat i kamaot from hysteresis i lus, mekem se oli mas lukaot gud blong karemaot hat.
Thermal expansion Due to the large free volume between the rubber molecular chains, the internal rotation of the segments becomes easier as the temperature rises, which makes the volume larger. The linear expansion coefficient of rubber is about 20 times that of steel. This must be considered in the design of the vulcanization model of rubber products, because the linear size of the finished rubber product will be 1{{5}2~3{6}}5% i liklik long model. Long wankain raba, hatnes na raw raba konten bilong raba kompaun i gat bikpela mak bilong raba kompaun bilong raba i kam daunbilo {8} Efek bilong shrinkage i no inap long mekim raba i go liklik na i gat mak bilong jelatin konten{9}} Teritorisa bilong tingting bilong jelatin i stap insait. Teritorisa bilong tingting rubber > butyl rubber > nitrile rubber > neoprene > styrene butadiene rubber > natural rubber, which is why rubber is chosen as the pipe fittings industry. The main reason for the raw materials. In today's fast-changing rubber industry, the world rubber industry has sales of more than 250 billion US dollars, rubber products have long been an important commodity in international baim na salim samting. Long wol maket, ol raba prodak i bin kamapim ol taia olsem senta, i lukluk long ol indastriel na konstraksen saplai, wantaim ol prodak bilong olgeta de olsem ol raba su na ol tep, na tu ol prodak grup olsem medikel na helt, kalsa na spots.