Loaʻa nā mea ʻohe i ka cellulose kiʻekiʻe, ʻano fiber slender, nā waiwai mechanical maikaʻi a me ka plasticity. Ma keʻano he meaʻokoʻa maikaʻi no ka hanaʻana i ka pepa lāʻau, hiki i kaʻohe ke hoʻokō i nā koi pulp no ka hanaʻana i ka pepa medium a me ka pepa kiʻekiʻe. Ua hōʻike ʻia nā haʻawina ʻo ka hoʻohui ʻana i ka ʻohe a me nā waiwai fiber he mau waiwai pulping maikaʻi. ʻO ka hana o ka pulp bamboo ka lua wale nō i ka pulp lāʻau coniferous, a ʻoi aku ka maikaʻi ma mua o ka pulp lāʻau ākea a me ka pulp mauʻu. Aia ʻo Myanmar, India a me nā ʻāina ʻē aʻe i mua o ka honua ma ke kahua o ka pulping bamboo a me ka hana pepa. ʻO ka pulp ʻohe a me nā huahana pepa i lawe ʻia mai Myanmar a me India. ʻO ka hoʻomohala ikaika ʻana i ka pulping ʻohe a me ka ʻoihana hana pepa he mea koʻikoʻi nui ia i ka hoʻēmi ʻana i ka hemahema o nā kumu lāʻau pulp maka.
Ulu koke ka ʻohe a hiki ke ʻohi ʻia i loko o 3 a 4 mau makahiki. Eia kekahi, ʻo ka ululāʻau ʻohe he hopena carbon fixation ikaika, e hoʻonui ana i nā pono waiwai, kaiaola a me ka pilikanaka o ka ʻoihana ʻohe. I kēia manawa, ua ulu mālie ka ʻenehana a me nā lako hana pulp o Kina, a ua hana ʻia nā mea hana nui e like me ke kahiʻu a me ka pulping. Ua hana ʻia nā laina hana ʻohe nui a me ka liʻiliʻi a hoʻokomo ʻia i Guizhou, Sichuan a me nā wahi ʻē aʻe.
Nā waiwai kemika o ka ʻohe
Ma ke ʻano he mea biomass, ʻekolu mau mea kemika nui ka ʻohe: cellulose, hemicellulose, a me lignin, me ka liʻiliʻi o ka pectin, starch, polysaccharides, a me ka wax. Ma ka nānā ʻana i ka haku mele a me nā ʻano o ka ʻohe, hiki iā mākou ke hoʻomaopopo i nā pono a me nā hemahema o ka ʻohe ma ke ʻano he pulp a me ka pepa.
1. He kiʻekiʻe ka cellulose ma ka ʻohe
ʻO ka pepa kiʻekiʻe i hoʻopauʻia he mau koi kiʻekiʻe no ka pulp raw material, e koi ana i ka kiʻekiʻe o ka cellulose content,ʻoi aku ka maikaʻi, a me ka haʻahaʻa o ka lignin, polysaccharides a me nā mea'ē aʻe,ʻoi aku ka maikaʻi. ʻO Yang Rendang et al. ua hoʻohālikelike i nā mea kemika nui o nā mea biomass e like me ka ʻohe (Phyllostachys pubescens), masson pine, poplar, a me ka mauʻu palaoa a ʻike ʻia ʻo ka cellulose ʻo ia ka masson pine (51.20%), ka ʻohe (45.50%), ka poplar (43.24%), a me ka mauʻu palaoa (35.23%); ʻO ka maʻiʻo hemicellulose (pentosan) he poplar (22.61%), ʻohe (21.12%), mauʻu palaoa (19.30%), a me ka masson pine (8.24%); ʻO ka lignin ka ʻohe (30.67%), masson pine (27.97%), poplar (17.10%), a me ka mauʻu palaoa (11.93%). Hiki ke ʻike ʻia ma waena o nā mea hoʻohālikelike ʻehā, ʻo ka ʻohe ka pulping maka mea lua ma mua o ka masson pine.
2. ʻOi aku ka lōʻihi o ka ʻohe a ʻoi aku ka nui o ka lākiō
ʻO ka lōʻihi o ka lōʻihi o ka ʻohe 1.49 ~ 2.28 mm, ʻo ke anawaena awelika he 12.24 ~ 17.32 μm, a ʻo ka lākiō hiʻohiʻona he 122 ~ 165; ʻO ka mānoanoa o ka paia o ka fiber he 3.90 ~ 5.25 μm, aʻo ka pā-i-cavity ratio he 4.20 ~ 7.50,ʻo ia hoʻi ka pulupulu mānoanoa me ka nui o ka lākiō. Ke hilinaʻi nui nei nā mea pulp i ka cellulose mai nā mea biomass. ʻO nā mea biofiber maikaʻi no ka hana pepa e pono ai i ka cellulose kiʻekiʻe a me ka liʻiliʻi liʻiliʻi liʻiliʻi, ʻaʻole hiki ke hoʻonui wale i ka hua pulp, akā e hōʻemi hoʻi i ka lehu a me nā extracts. Loaʻa i ka ʻohe nā hiʻohiʻona o nā fiber lōʻihi a me ka lakene hiʻohiʻona nui, ʻo ia ka mea e hoʻopili pinepine ai ka fiber i kēlā me kēia wahi ma hope o ka hana ʻia ʻana o ka pulp ʻohe i pepa, a ʻoi aku ka ikaika o ka pepa. No laila, ʻoi aku ka ikaika o ka pulping o ka ʻohe i ka lāʻau, a ʻoi aku ka ikaika ma mua o nā mea kanu mauʻu ʻē aʻe e like me ka mauʻu, ka ʻōpala palaoa, a me ka ʻuala.
3. He kiʻekiʻe ka ikaika o ka fiber bamboo
ʻAʻole hiki ke hoʻololi wale ʻia ka cellulose ʻo Bamboo, degradable, biocompatible, hydrophilic, a loaʻa iā ia nā ʻano mechanical maikaʻi a me ka wela, akā loaʻa nō hoʻi nā waiwai mechanical maikaʻi. Ua ho'āʻo kekahi poʻe akamai i nā hoʻāʻo tensile ma nā ʻano ʻohe 12 a ʻike i ko lākou modulus elastic a me ka ikaika tensile i ʻoi aku ma mua o ko lākou mau lāʻau ulu ulu wikiwiki. ʻO Wang et al. ua hoʻohālikelike i nā ʻano mekini tensile o ʻehā ʻano fiber: ʻohe, kenaf, fir, a me ramie. Ua hōʻike ʻia nā hopena i ʻoi aku ka kiʻekiʻe o ka modulus tensile a me ka ikaika o ka fiber bamboo ma mua o nā mea o nā mea fiber ʻekolu.
4. He lehu kiʻekiʻe ka ʻohe a me ka ʻike
Ke hoʻohālikelike ʻia me ka lāʻau, ʻoi aku ka nui o ka lehu o ka ʻohe (e pili ana i 1.0%) a me 1% NAOH extract (e pili ana i 30.0%), kahi e hoʻonui ai i nā haumia i ka wā o ka pulping, ʻaʻole kūpono i ka hoʻokuʻu ʻana a me ka hoʻomaʻemaʻe wai o ka pulp a ʻoihana pepa, a e hoʻonui i ke kumukūʻai hoʻopukapuka o kekahi mau lako.
I kēia manawa, ua hōʻea ka maikaʻi o nā huahana pepa pulp o Yashi Paper i nā koi maʻamau o ka EU ROHS, ua hala i ka EU AP (2002) -1, US FDA a me nā hoʻokolohua maʻamau o ka honua, ua hala i ka FSC 100% nahele hōʻoia, a ʻo ia hoʻi ka hui mua ma Sichuan i loaʻa i ka China palekana a me ka hōʻoia olakino; i ka manawa like, ua hoʻohālikelike ʻia ʻo ia ma ke ʻano he "quality supervision sampling qualified" huahana e ka National Paper Products Inspection Center no nā makahiki he ʻumi mau makahiki, a ua lanakila pū ʻo ia i nā hanohano e like me "National Quality Stable Qualified Brand and Product" mai ka China Quality. Kaapuni.
Ka manawa hoʻouna: Sep-03-2024
