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HDPE Pipe Excellent Resistance To Performance

2018-11-15

Polaitiléin ard-dlúis, is é an t-ainm Béarla & polyethylene High Density & quot ;, dá ngairtear & quot; HDPE. & Quot; Is cineál de roisín teirmeaplaisteach é HDPE le criostail ard agus neamh-polar. Is é an chuma ar an HDPE bunaidh bán bó finne, cuid áirithe tréshoilseach sa chuid bheag. Tá friotaíocht den scoth ag PE ag an chuid is mó de na maoine a bhaineann le ceimiceáin bheo agus tionscail. Is féidir le cineálacha áirithe ceimiceán creimeadh ceimiceach a tháirgeadh, Píopa HDPE cosúil le ocsaídiúcháin creimneach (aigéad nítreach comhchruinnithe), hidreacarbóin aramatacha (xilene) agus hidreacarbóin halaiginithe (teitreaclóiríd charbóin). Níl an polaiméir hygrascópach agus tá friotaíocht maith uisce aige agus is féidir é a úsáid chun críocha pacáistíochta. Tá dea-airíonna leictreacha ag HDPE, go háirithe an neart tréleictreach ard, Píopa HDPE mar sin tá sé oiriúnach le haghaidh sreang agus cábla. Tá friotaíocht den scoth ag meáchan go grád meáchan móilíneach ard, ag teocht an tseomra fiú ag -40f teocht íseal.

HDPE is a thermoplastic polyolefin produced by ethylene copolymerization. Although HDPE was introduced in 1956, the plastic has not reached its maturity level. This generic material is also constantly developing its new uses and markets. of thermoplastic resins. The appearance of the original HDPE is milky white, a certain degree of translucent in the meager section. PE has excellent resistance to most of the properties of living and industrial chemicals. Certain types of chemicals can produce chemical corrosion,HDPE Pipe such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer is not hygroscopic and has good water vapor resistance.

PE can be made with a wide variety of processing methods. Includes such as sheet extrusion, film extrusion, pipe or profile extrusion, blow molding, injection molding and roll molding.

HDPE pipe is the traditional steel pipe, PVC drinking water pipe replacement products.

Caithfidh píopa HDPE brú áirithe a sheasamh, de ghnáth meáchan móilíneach mór a roghnú, airíonna meicniúla maithe le roisín PE, mar shampla roisín HDPE. Tá neart teanntachta roisín LDPE íseal, tá an brú bocht, tá an rigidity bocht, tá an cobhsaíocht tríthoiseach bocht nuair a bhíonn sé, agus tá an nasc deacair, rud nach bhfuil oiriúnach mar ábhar an phíobáin brú soláthair uisce. Mar gheall ar a n-innéacs ard sláinte, áfach, tá LDPE go háirithe roisín LLDPE ina ábhar coiteann chun píopaí uisce óil a tháirgeadh. Is beag, leachtacht maith é an luaslagán leáite LDPE, LLDPE, agus mar sin tá roghnú a raon Innéacs Melt freisin níos leithne, de ghnáth mé 0.3-3g / 10min.

Chemical properties

Polyethylene resistance to a variety of organic solvents,HDPE Pipe resistance to a variety of acid-base corrosion, but not antioxidant acid, such as nitric acid. Polyethylene is oxidized in an oxidizing environment.

Physical

Polyethylene can be considered transparent in a thin film state, but in the presence of massive crystals there is a strong light scattering and opacity. The degree of polyethylene crystallization is affected by the number of branches, the more the branch chain, the more difficult the crystallization. The melting temperature of polyethylene is also affected by the number of branches,HDPE Pipe which is distributed from 90 degrees Celsius to 130 degrees Celsius, the more the branch chain melts the lower the temperature. Polyethylene single crystals can usually be prepared by dissolving high density polyethylene in an environment above 130 degrees Celsius.