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你知道常見(jiàn)的幾種塑膠管特點(diǎn)是什么？

文章出處：常見(jiàn)問(wèn)題責(zé)任編輯：東莞市聯(lián)臻光電材料有限公司發(fā)表時(shí)間：2020-08-27

　　??塑膠管管的塑膠是從石油中提煉出來(lái)，經(jīng)過(guò)人工復(fù)合而成，具有高分子量的有機(jī)物并具有可塑性。

塑膠的優(yōu)點(diǎn)有：一次即可成形成品、具有高速率生產(chǎn)性、任何形狀都可制作、外觀美麗、產(chǎn)品的質(zhì)量輕。因有上述的特點(diǎn)所以塑膠產(chǎn)品品質(zhì)良好，可大量制造以及價(jià)格便宜。塑膠也有其缺點(diǎn)：耐熱性差、剛性很低易脆化、不耐油、易燃燒，特別是抗熱性，與金屬相比較時(shí)，塑膠的抗熱性非常差。

塑膠若以較大項(xiàng)來(lái)分類時(shí)，可分為兩大類：
一是熱可塑性塑膠——加熱時(shí)變較，冷卻后變堅(jiān)固，可反復(fù)回收使用。
一是熱固化塑膠——加熱時(shí)變較，冷卻后變堅(jiān)固再加熱也無(wú)變化，不可回收使用。
熱可塑性塑膠：其分子構(gòu)造如表，所見(jiàn)的長(zhǎng)形線狀，當(dāng)加熱時(shí)會(huì)移動(dòng)變軟，冷卻后則形成不會(huì)移動(dòng)的堅(jiān)固物體。

熱固化塑膠：開(kāi)始時(shí)短的線狀會(huì)移動(dòng)的，但加熱時(shí)，會(huì)互相邊連結(jié)成網(wǎng)目狀，變成不可移動(dòng)的堅(jiān)固物體，冷卻后也無(wú)法恢復(fù)成原料的狀態(tài)。

目前，常常使用的塑膠有熱可塑性塑膠及熱固化塑膠，它們可用下表之方式來(lái)分類

塑膠的分類
熱可塑性塑膠熱固化性塑膠，
PE 、PC，
PS，
PP，
ABS 、尿素樹(shù)脂，
環(huán)氧樹(shù)脂、多元脂，
熱可塑性塑膠又可分為結(jié)晶性塑膠以及非結(jié)晶性塑兩大類，
結(jié)晶性及非結(jié)晶性，
結(jié)晶性塑膠非結(jié)晶性塑膠，
規(guī)則性高之分子。
?

上一篇: 塑料透明管性能及用途！漲知識(shí)啦！

下一篇: 用了那么久的塑膠條你竟然都不了解它？

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