Hoʻokumu ʻia nā paipu PP-R a me nā mea pono i ka polypropylene copolymerized random ma ke ʻano he kumu kumu nui a hana ʻia e like me GB / T18742. Hiki ke hoʻokaʻawale ʻia ka polypropylene i ka PP-H (homopolymer polypropylene), PP-B (block copolymer polypropylene), a me PP-R (random copolymer polypropylene). He mea koʻikoʻi ka mīkini paipu corrugated pā pālua i ka hana paipu. ʻO PP-R ka mea i koho ʻia no nā paipu polypropylene no ka wai wela a me ka wai anuanu ma muli o kona kūpaʻa lōʻihi i ke kaomi hydrostatic, ka lōʻihi o ka wela wela o ka oxygen a me ka hana ʻana a me ka hana ʻana.
He aha ka paipu PP-R?
Ua kapa ʻia ka paipu PP-R ʻekolu ʻano polypropylene paipu. Hoʻohana ia i ka polypropylene copolymer maʻamau e hoʻokuʻu ʻia i loko o ka paipu, a hoʻoheheʻe ʻia i loko o ka paipu. He ʻano hou ia o ka huahana paipu plastik i hoʻomohala ʻia a hoʻohana ʻia ma ʻEulopa i nā makahiki 1990 mua. Ua ʻike ʻia ʻo PP-R i ka hopena o nā makahiki 80, me ka hoʻohana ʻana i ke kaʻina hana copolymerization o ke kinoea e hana ai ma kahi o 5% PE i loko o ke kaulahao molekula PP me ka randomly a uniformly polymerized (random copolymerization) e lilo i hanauna hou o nā mea pipeline. Loaʻa ka hopena maikaʻi a me ka hana kolo lōʻihi.
He aha nā ʻano o nā paipu PP-R? Loaʻa i ka paipu PP-R nā hiʻohiʻona nui:
1.non-toxic a maʻemaʻe. ʻO nā molekala waiwai o PP-R he kalapona a me ka hydrogen wale nō. ʻAʻohe mea ʻino a ʻawaʻawa. He maʻemaʻe lākou a hilinaʻi. ʻAʻole lākou i hoʻohana wale ʻia i nā paipu wai wela a me ke anuanu, akā hoʻohana pū ʻia i nā ʻōnaehana wai inu maʻemaʻe.
2.Heat mālama a me ka ikehu hoola. ʻO ka conductivity thermal o ka paipu PP-R he 0.21w / mk, ʻo ia wale nō 1/200 o ka paipu kila.
3.maikaʻi wela kū'ē. ʻO ka vicat softening point o ka PP-R tube he 131.5 ° C. Hiki ke piʻi ka mahana hana kiʻekiʻe loa i 95 ° C, hiki ke hoʻokō i nā koi o nā ʻōnaehana wai wela i ke kūkulu ʻana i ka wai a me nā kikoʻī kikoʻī.
4.Long lawelawe ola. ʻO ke ola hana o ka paipu PP-R hiki ke piʻi ma mua o 50 mau makahiki ma lalo o ka mahana hana o 70 ℃ a me ke kaomi hana (PN) 1.OMPa; ʻO ke ola lawelawe o ka mahana maʻamau (20 ℃) hiki ke piʻi ma mua o 100 mau makahiki.
5.Easy hoʻokomo a me ka pili pono. He maikaʻi ka hana kuʻi ʻana o PP-R. Hiki ke hoʻohuiʻia nā paipu a me nā mea pono e ka welding wela a me ka uila, kahi maʻalahi e hoʻokomo a hilinaʻi i nā hono. ʻOi aku ka ikaika o nā ʻāpana pili ma mua o ka ikaika o ka paipu ponoʻī.
6. Hiki ke hana hou i na mea. Hoʻomaʻemaʻe ʻia ka ʻōpala PP-R a ʻoki ʻia a hana hou ʻia no ka hana paipu a me ka paipu. ʻAʻole ʻoi aku ka nui o nā mea hana hou ma mua o 10% o ka nui o ka nui, ʻaʻole ia e pili i ka maikaʻi o ka huahana.
He aha nā kahua noi nui o nā paipu PP-R?
1. ʻO nā ʻōnaehana wai anuanu a me ka wela o ka hale, me nā ʻōnaehana hoʻomehana waena;
2. ʻO ka'ōnaehana hoʻomehana i loko o ka hale, e like me ka papahele, kaʻaoʻao a me ka'ōnaehana hoʻomehana uila;
3. Pūnaehana wai maʻemaʻe no ka inu pololei;
4.Central (centralized) ea ea;
5. Nā ʻōnaehana pipeline no ka lawe ʻana a i ʻole ka hoʻokuʻu ʻana i ka media kemika.
Ka manawa hoʻouna: Mei-19-2021