(PP)工程級聚丙烯管材簡稱PP管
PP管是由工程級聚丙烯粒料經(jīng)擠出成型。該管材無毒、無味,廣泛應(yīng)用于化工、環(huán)保、食品衛(wèi)生、建筑給排水等領(lǐng)域(執(zhí)行QB1929-93標(biāo)準(zhǔn))。PP( Polypropylene聚丙烯)是與我們?nèi)粘I蠲芮邢嚓P(guān)的通用樹脂,是丙烯最重要的下游產(chǎn)品,世界丙烯的50%,我國丙烯的65%都是用來制聚丙烯。聚丙烯是世界上增長最快的通用熱塑性樹脂,總量僅僅次于聚乙烯和聚氯乙烯。PP是結(jié)晶性塑料 ,一般為呈不規(guī)則圓形表面有蠟質(zhì)光澤白色顆料。密度0.9-0.91g/cm3,是塑料中最輕的一種。有較明顯的熔點(diǎn), 根據(jù)結(jié)晶度和分子量的不同,熔點(diǎn)在170℃左右,而其分解溫度在290℃以上,因而有著很寬的成型溫度范圍,成型收縮率1.0-2.5%。PP的使用溫度可達(dá)100℃,具有良好的電性能和高頻絕緣性,且不受濕度影響。PP管材www.chinatysj.com.但低溫下易脆,不耐磨,易老化。適于制作一般機(jī)械零件,耐腐蝕零件和絕緣零件。此外,用PP料制做的鉸鏈產(chǎn)品具有突出的耐疲勞性能。
PP pipe is by the engineering level polypropylene grain by extrusion. This pipe non-toxic, tasteless, widely used in chemical industry, environmental protection, food hygiene, building water supply and drainage, etc (executive QB1929-93 standard). PP (Polypropylene Polypropylene) is closely related to our daily life general resin, acrylic most important downstream products, the world propylene 50%, 65% of the propylene in our country are used to Polypropylene. Polypropylene is the world's fastest growing general thermoplastic resin, second only to the total amount of polyethylene and polyvinyl chloride (PVC). PP is crystalline plastics, generally for irregular circular surface is waxy luster white makings. Density 0.9-0.91 g/cm 3, is plastic the lightest of. Have a significant melting point, according to the degree of crystallinity and molecular weight is different, melting point 170 ℃ or so, and its decomposition temperature at 290 ℃ above, thus has a wide molding temperature range, molding shrinkage 1.0 2.5%. PP use temperature can reach 100 ℃, good electrical insulation and high frequency, and not affected by moisture influence. But low temperature brittle, wear-resisting, aging. Suitable for making general machinery parts, corrosion resistant parts and insulation parts. In addition, with PP material making of hinge products with outstanding resistance to fatigue performance.
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