imikhiqizo

izici zamakhemikhali

I-Toughening agent ibhekisela entweni engakhulisa ukuguquguquka kwefilimu yokunamathela. Ezinye izinamathiselo ze-thermosetting resin, njenge-epoxy resin, i-phenolic resin kanye nezinamathiselo ze-polyester resin ezingagcwalisiwe ngemva kokuqina, ukunwebeka okuphansi, ubuthakathaka obukhulu, lapho indawo yokubopha ngaphansi kwamandla angaphandle kulula ukuyiqhekeza, kanye nokwanda okusheshayo, okuholela ekuqhekekeni, ukumelana nokukhathala, akunakusetshenziswa njenge-structural bonding. Ngakho-ke, kubalulekile ukunciphisa ubuthakathaka, ukwandisa ukuqina kanye nokuthuthukisa amandla okuthwala. Izinto ezinganciphisa ubuthakathaka futhi zandise ukuqina ngaphandle kokuthinta ezinye izakhiwo eziyinhloko ze-glue yi-toughening agent. Ingahlukaniswa ibe yi-raber toughening agent kanye ne-thermoplastic elastomer toughening agent

Isingeniso somkhiqizo kanye nezici

(1) I-ejenti yokuqinisa irabha lolu hlobo lwezinhlobo ze-ejenti yokuqinisa luhlanganisa kakhulu irabha ye-polysulfide ewuketshezi, irabha ye-acrylic ewuketshezi, irabha ye-polybutadiene ewuketshezi, irabha ye-nitrile, irabha ye-ethylene propylene kanye nerabha ye-styrene butadiene, njll.
(2) i-thermoplastic elastomer I-thermoplastic elastomer uhlobo lwezinto zokwenziwa ezibonisa ukuqina kwerabha ekushiseni kwegumbi futhi zingafakwa ipulasitiki ekushiseni okuphezulu. Ngakho-ke, lolu hlobo lwe-polymer lunezici zerabha kanye ne-thermoplastic, lungasetshenziswa njenge-ejenti yokuqinisa izinto ezihlanganisiwe, futhi lungasetshenziswa njengezinto zokwakha izinto ezihlanganisiwe. Lolu hlobo lwezinto luhlanganisa kakhulu i-polyurethane, i-styrene, i-polyolefin, i-polyester, i-interregular 1, i-2-polybutadiene kanye ne-polyamides neminye imikhiqizo, okwamanje njenge-ejenti yokuqinisa izinto ezihlanganisiwe ezisetshenziswa kakhulu i-styrene kanye ne-polyolefin.
(3) Ezinye izinto zokuqinisa Ezinye izinto zokuqinisa ezifanelekela izinto ezihlanganisiwe yi-polyamides enesisindo sama-molecule esiphansi kanye nezinto zokuqinisa ezingasebenzi ezinama-molecule aphansi, njenge-phthalate esters. I-ejenti yokuqinisa engasebenzi ingabizwa nangokuthi i-plasticizer, engahlanganyeli ekusabeleni kwe-resin.

sebenzisa

I-ejenti yokuqinisa ifanelekela izinamathiselo, irabha, izembozo kanye neminye imikhiqizo. Luhlobo lwe-ejenti esekelayo enganciphisa ubuthakathaka bezinto ezihlanganisiwe futhi ithuthukise ukumelana komthelela wezinto ezihlanganisiwe. Ingahlukaniswa ibe yi-ejenti yokuqinisa esebenzayo kanye ne-ejenti yokuqinisa engasebenzi. I-ejenti yokuqinisa esebenzayo ibhekisela kuchungechunge lwayo lwama-molecule oluqukethe amaqembu asebenzayo angasabela ne-matrix resin, engakha isakhiwo senethiwekhi, ingeze ingxenye yeketanga eliguquguqukayo, ngaleyo ndlela ithuthukise ukumelana komthelela wezinto ezihlanganisiwe. I-ejenti yokuqinisa engasebenzi uhlobo lwe-ejenti yokuqinisa encibilika ne-matrix resin kodwa ayihlanganyeli ekusabeleni kwamakhemikhali.

iphakheji kanye nokuthuthwa

B. Lo mkhiqizo ungasetshenziswa,,25KG,BAERRLS.
C. Gcina kuvaliwe endaweni epholile, eyomile futhi enomoya opholile ngaphakathi. Izitsha kufanele zivalwe kahle ngemva kokusetshenziswa ngakunye ngaphambi kokusetshenziswa.
D. Lo mkhiqizo kufanele uvalwe kahle ngesikhathi sokuthuthwa ukuze kuvinjelwe umswakama, i-alkali enamandla ne-asidi, imvula nokunye ukungcola ekuxubeni.