-->

Polietilen : Pengertian, Sifat, Fakta dan Kegunaanya

hpk
250x250

Polimer merupakan salah satu bahan sintetis yang memiliki banyak manfaat dalam kehidupan kita sehari-hari. Selama ini kita mungkin mengenal berbagai macam bahan-bahan yang terbuat dari plastik mulai dari kursi, ember, pipa sampai kabel listrik. Nah, kesemua bahan itu merupakan polimer, sehingga polimer ini benar-benar usable dan sangat bermanfaat bagi manusia.

Salah satu polimer sintetis yang memiliki banyak kegunaaan ialah Polietilen ( PE ). Polimer jenis ini banyak digunakan pada peralatan-peralatan rumah tangga seperti alat-alat masak dan juga bisa digunakan untuk alat listrik seperti kabel dan isolator.

Sifat Dan Fakta

Polietilen yang memiliki kerapatan rendah diproduksi melalui polimerisasi radikal bebas pada suhu tinggi ( 200 C ) dan tekanan yang sangat tinggi yaitu 1000 atm. Sedangkan polietilen dengan kerapatan tinggi diproduksi menggunakan katalis Ziegler-Natta Pada suhu yang lebih rendah yaitu dibawah 100 C dan tekanan kurang dari 100 atm. Dibandingkan dengan produk plastik lainya, polietilen lebih banyak diproduksi . Sekitar 4 juta ton polietilen dengan kerapatan rendah dan sekitar 2 juta ton polietilen dengan kerapatan tinggi habis terjual pada tahun 1990-an. Hal ini menunjukan bahwa polimer polietilen sangat usable dan bermanfaat bagi kelangsungan keseharian kita, hal ini bisa dilhat dari jumlah produksinya yang sangat masif dan menggunguli jumlah produksi jenis polimer lain.

Secara kimia, polietilen bersifat sangat inert. Polimer ini tidak larut dalam pelarut jenis apapun pada suhu kamar, tetapi dapat mengalami pengerusakan oleh hidrokarbon dan karbon tetraklorida. Polietilen juga dapat dirusak oleh asam nitrat pekat, pengerusakan oleh asam nitrat ini akan menyebabkan terjadinya proses pembakaran akibat kuatnya sifat oksidator dari asam nitrat. Polietilen juga dapat mengalami kerusakan oleh sinar UV.

Sifat fisik polietilen kerapatan tinggi berbeda dengan polietilen kerapatan rendah. Polietilen dengan kerapatan rendah memiliki sifat kenyal, tidak mudah sobek, dan tahan terhadap kelembapan dan bahan kimia, sehingga banyak dipakai untuk pembungkus, dus, isolator listrik, pelapis kabel dan sebagainya. Sedangkan polietilen dengan kerapatan tinggi memiliki daya regang dan ketegangan yang solid, sehingga banyak digunakan untuk membuat pipa, tabung, bejana dan benda lainya.

Kesimpulan

Jadi polietilen merupakan salah satu polimer sintetis yang memiliki banyak manfaat. Dibandingkan dengan jenis polimer lainya, polietilen termasuk yang paling banyak diproduksi di dunia, hal ini terjadi karena sifatnya yang sangat inert dan kekuatan fisiknya yang lebih baik daripada polimer lainya, sehingga polietilen menjadi primadona untuk dijadikan sebagai bahan untuk membuat peralatan-peralatan tertentu mulai dari peralatan kamar mandi sampai peralatan listrik. Jadi polietilen benar-benar sangat usable.

Credit Image By : ps-commodities.com

300x600
the cheapest car insurance cost of car insurance best car insurance quotes insurance auto insurance quotes car get car insurance quotes online car insurance agent instant car insurance quote car insurance websites direct car insurance insure a car motor car insurance quote cheap car insurance online quotes for car insurance car insurers commercial car insurance motor insurance quote car insurance quotes online get a quote online international health insurance compare car insurance quotes insurance for car compare car insurance car insurance buy life insurance online compare auto insurance international medical insurance general car insurance cheap motor insurance low car insurance car insurance comparison company car insurance budget car insurance private health insurance online quote car insurance cheap motor car insurance car insurance for new drivers cheap car insurance quotes online online car insurance quotes get car insurance quotes car insurance quotes comparison motor car insurance car insurance quotes car insurance cheap comprehensive car insurance best auto insurance short term health insurance motor insurance cheap online car insurance online motor insurance quotes car insurance california buycarinsurance online vehicle insurance free car insurance quotes landlord insurance health insurance for children motorbike insurance monthly car insurance car insurance usa car insurance reviews car insurance renewal quotes vehicle insurance health insurance rates term life insurance quotes vehicle insurance quotes car insurance compare motor vehicle insurance best car insurance motor insurance online quote car insurance online quote life insurance online supplemental health insurance best car insurance rates car insurance discounts motor vehicle insurance quotes auto insurance cheap travel insurance bike insurance travel medical insurance buy car insurance online online motor insurance travel insurance quote get a quote for car insurance health insurance agent car insurance companies cheap car insurance companies travel insurance annual travel insurance commercial vehicle insurance permanent life insurance medical insurance quotes online car insurance cheap car insurance quotes car insurance online quote insurance online level term life insurance health insurance comparison how much is car insurance travel health insurance pet health insurance quotes on cars health ins travel insurance uk quote for car insurance get insurance quote online disability insurance quote temporary health insurance temporary insurance rental car insurance cheap health insurance auto insurance compare third party car insurance buy health insurance auto insurance quotes cheap insurance companies best term life insurance personal health insurance online quote insurance car insurance premium health insurance policies quotes for cars whole life insurance credit insurance cheap van insurance cheap term life insurance cheap motorcycle insurance compare life insurance car insurance cover health insurance motorcycle insurance short term car insurance health insurance coverage insurance qoute cheap life insurance house insurance quote car insurance uk health insurance companies cigna health insurance cheap insurance cheap car insurance uk compare health insurance car insurance for young drivers short term insurance online health insurance caravan insurance life insurance comparison direct insurance health insurance plans motor insurance online car insurance estimator accident insurance home insurance quotes nj car insurance new car insurance private medical insurance home insurance car insurance brokers car insurance rates commercial insurance health insurance quotes motor insurance companies which car insurance car quotes online online auto insurance flood insurance cheap auto insurance quotes car insurance agencies business health insurance term life insurance truck insurance professional indemnity insurance life insurance car insurance policy long term care insurance drive insurance buy insurance car ins motorcycle insurance quote critical illness insurance term insurance student health insurance home insurance comparison insurance rates insurance cover holiday insurance insurance sites online vehicle insurance quotes company website home insurance rates compare insurance buy insurance online affordable medical insurance car insurance coverage product liability insurance home contents insurance buy life insurance renters insurance group health insurance family health insurance motor insurance quote online mortgage insurance best home insurance personal insurance medical insurance property insurance life insurance agent group insurance aetna health insurance cheap medical insurance liability insurance rental insurance life insurance policy group life insurance general liability insurance insurance quotes online all car insurance companies best health insurance insurance plans life insurance for seniors van insurance website quote universal life insurance building insurance co insurance insurance car car insurance prices disability insurance insurance vehicle cheap vehicle insurance senior life insurance medical insurance plans insurance health house insurance life insurance quotes car quotes cheap home insurance

0 Response to "Polietilen : Pengertian, Sifat, Fakta dan Kegunaanya"

Post a Comment

Apakah Sobat Masih Bingung ? Jangan Malu-Malu Sampaikan Saja Keluh Kesah Sobat Di Kolom Komentar !

Iklan Atas Artikel

Iklan Tengah Artikel 1

Iklan Tengah Artikel 2

Iklan Bawah Artikel

close
[ klik disini 2X ] [ close ]