Ke koho nui nei keia 'atikala i ka MMA, BA, AA ma ke 'ano he monomer, a kūkākūkā i nā kumu o ka polimerization graft me lakou, e like me ke ka'ina ho'ohui, ka huina hoonui a me ka wela o ka hopena o ka mea ho'omaka a me kēlā me kēia monomer, a 'ike i nā kūlana ka'ina hana polymerization maika'i loa. Hoʻopili mua ʻia ka ʻōpala, a laila hoʻoulu ʻia a hoʻoheheʻe ʻia me kahi mea hoʻoheheʻe hui ʻia ma 70 ~ 80 ° C, a laila hoʻohui ʻia ka mea hoʻomaka BPO i nā pūʻulu. Hoʻohui ʻia ka monomer MMA mua i hoʻoheheʻe ʻia me BOP ma 80 ~ 90 ° C no 20 mau minuke, a laila hoʻohui ʻia me ka monomer lua o BPO, ma hope o 20 mau minuke, e hoʻohui i ke kolu monomer ma 84 ~ 88 ℃ a hoʻoulu no 45 mau minuke, mālama. mahana no 1.5 ~ 2 mau hola, a laila e kiʻi i ka CR/MMA-BA-AA ʻekolu ala ʻekolu graft polymerization adhesive, ʻoi aku ka ikaika Peel ma mua o CR/MMA-BA, kona waiwai he 6.6 KN.m-1.
Hua'ōlelo nui: Paʻa neoprene, Kālu kāmaʻa, Paʻa neoprene grafted nui.
Cellulose eteraMCaHPMCloaʻa i ka hana hoʻopuehu maikaʻi, emulsification, mānoanoa, adhesion, hoʻokumu kiʻiʻoniʻoni, paʻa wai, a loaʻa hoʻi i ka hoʻoheheʻe wai maikaʻi loa, ka hana ʻili, kūpaʻa, a me ka dissolution i nā mea hoʻoheheʻe organik.
ʻO nā huahana nui i hoʻomohala ʻia i kēia manawa he mau ʻano RT series MC a me HPMC, nona nā māka he 50RT (Methylcellulose), 60RT (Hydroxypropylmethylcellulose), 65RT (Hydroxypropylmethylcellulose), 75RT (Hydroxypropylmethylcellulose), e pili ana i nā māka o DOW A Chemical Company, ʻo Methocel. F a me K.
ʻO nā huahana RT series he mea hoʻohui maikaʻi loa i nā mea kūkulu hale ma muli o ko lākou cohesiveness, paʻa paʻa a me ka paʻa ʻana o ka wai. No ka laʻana, hiki ke hoʻopili ʻia i loko o ke kiʻekiʻe "ka pā seramika a me ka papahele tile adhesives", i kapa ʻia ʻo ka pauka rubber, i hoʻohana ʻia ma Beijing West Railway Station, maikaʻi ka hopena. Eia hou, hiki ke hoʻohana 'ia e like me ka gelled electrolyte i electrolytic capacitors a hoʻopaʻa electrode grids i ka uila mea hana, e like me atropine, aminopyrine a me anal crystals i pharmaceuticals, a me he thickener no ka wai emulsions i pena. I ka latex pena a me ka wai-soluble pena, hiki ke hoohana ia e like me film-forming agent, thickener, emulsifier and stabilizer, etc.
Hua'ōlelo nui: Methyl Cellulose, Hydroxy Propyl Cellulose, hoʻopili, noi.
Ke hoʻomohala ʻana i ka paʻi lima lima pepa wai
I kēia mau makahiki i hala iho nei, ua hoʻomohala ʻia kahi kaʻina hana hou o ka hoʻopili ʻana i ke kiʻiʻoniʻoni plastik ma nā mea paʻi. ʻO ia ka BOPP (biaxially oriented polypropylene film) i uhi ʻia me ka mea hoʻopili a hoʻopaʻa pū ʻia me ka mea i paʻi ʻia ma hope o ke kaomi ʻia ʻana e kahi pahu pahu a me kahi huila wela e hana i pepa. / Pa'i pa'i 3-i-1. Pili kēia i ka pilikia o ka hoʻopaʻa ʻana i ka pepa a me ka plastic. ʻO ka BOPP kahi mea polar ʻole, no laila, pono kahi mea hoʻopili i hoʻopili maikaʻi ʻia i nā mea polar a me nā mea polar ʻole.
ʻO ka hoʻohui ʻana i ka mea hoʻopili SBS me ka resin epoxy he kūpono maikaʻi. ʻO SBS kahi elastomer viscose. Hiki ke ʻike ʻia mai kona ʻāʻī hāʻule ʻana i mea e hoʻonui ai i ka ikaika luku adhesive o ka viscose, pono e hoʻomalu ʻia a puni ka SBS: epoxy resin = 2:1. Mai ka ʻili ikaika o ka peel, hiki ke ʻike ʻia i ka wā e kiʻekiʻe ai ka lākiō, e ʻoi aku ka ikaika o ka peel, akā e hoʻonui ʻia ka adhesion. I mea e pale aku ai i ka pili, SBS: epoxy resin = 1: 1 ~ 2.5: 1 hiki ke hoʻomalu ʻia no ka loaʻa ʻana o ka ikaika peel e piʻi mālie. No ka noʻonoʻo ʻana, e hoʻoholo i ka SBS i ke kolu nui: epoxy resin = 1:1~3.5:1.
ʻO ka hana nui o ka hoʻohana ʻana i ka resin tackifying ʻo ia ka hoʻonui ʻana i ka ikaika paʻa o ka matrix a hoʻomaikaʻi i ka wettability o ke kāpili a me ka ʻili pili. ʻO ka resin tackifying i hoʻohana ʻia i kēia noiʻi ʻana he rosin tackifier i haku ʻia me ka rosin maʻamau a me ka rosin dimerized ma nā ʻano like ʻole. Ma o nā hoʻāʻo he nui, ua hoʻoholo ʻia ʻo ka pākēneka o ka rosin dimerized i ka tackifier he 22.5%, a ʻo ka ikaika peeling o ke kāpili i hoʻomākaukau ʻia e like me kēia ratio he 1.59N / 25mm (pepa-plastic).
ʻO ka nui o ka tackifier kekahi mana i nā waiwai adhesive. ʻO ka hopena maikaʻi loa inā ʻo ka ratio o ke kolu nui a me ka tackifier he 1:1. Ka ikaika peel N/mm plastic-plastic 1.4, pepa-plastic 1.6.
Ma kēia haʻawina, ua hoʻohana ʻia ʻo MMA ma ke ʻano he mea hoʻoheheʻe e hoʻohui iā SBS a me MMA. Ua ʻike nā hoʻokolohua ʻaʻole hiki i ka hoʻohana ʻana o MMA ke hoʻokō wale i ke kumu o ka kāwili ʻana i nā mea i loko o ka colloid, akā e hoʻemi pū i ka viscosity a hoʻomaikaʻi i ka ikaika adhesive. No laila, ʻo MMA kahi diluent hoʻololi kūpono. Ma hope o nā hoʻokolohua, ʻo ka nui o ka MMA i hoʻohana ʻia ʻo ia ka nui o ke kāpili 5% ~ 10% kūpono.
No ka mea e hiki ke hoʻoheheʻe ʻia ka viscose i ka wai, koho mākou i ka latex keʻokeʻo (polyvinyl acetate emulsion) ma ke ʻano he mea lawe wai. ʻO ka nui o ka latex keʻokeʻo he 60% o ka huina viscose. Ma hope o ka emulsified ka wai-ma muli viscose i loko o ka wai-emulsion moku'āina ma o ka hoopuehu a me ka emulsification o ka emulsified lawe, ina kona diluted kūlike 'aʻole kūpono no ka hoʻohana 'ana, hiki ke diluted me ka wai. ʻO kēia ʻano dilution he haʻahaʻa haʻahaʻa a ʻaʻohe mea ʻawaʻawa (ʻaʻole pono e hoʻohana i nā solvents organik), a ʻo ka nui o ka wai dilution he 10% ~ 20%.
I mea e wehe ai i ke koena o ka viscose, ua hoʻāʻo ʻia e hoʻohana ʻia ka dilute Na2CO3 solution ma ke ʻano he alkalizing agent, a ʻo ka hopena ka mea maikaʻi loa. ʻO ke kumumanaʻo o ka hopena o ka mea hoʻoheheʻe alkalizing paha ka hopena saponification e hoʻolauna i kekahi mau polar ions ikaika, e like me nā ion sodium, i hoʻololi ʻia ka waika rosin insoluble kumu i ka paʻakai paʻakai paʻakai. Eia kekahi, inā hoʻohui ʻia ke kumu ikaika loa i ke kāpili, e nalowale ana ka ikaika adhesive, i pau ʻole ke kāpili, no laila ʻaʻole kūpono ke kāpili no ke kaiapuni alkaline.
Kaʻina hana kūpono.
Ka manawa hoʻouna: Apr-25-2024