toughener
njirimara kemịkalụ
Ihe na-eme ka ike sie ike na-ezo aka na ihe nwere ike ịbawanye mgbanwe nke ihe nkiri nrapado.Ụfọdụ thermosetting resin adhesives, dị ka epoxy resin, phenolic resin na unsaturated polyester resin adhesives mgbe ọgwụgwọ, ala elongation, ukwuu fragility, mgbe bonding saịtị n'okpuru mpụga ike dị mfe ịgbawa, na ngwa ngwa mgbasawanye, na-akpata cracking, ike ọgwụgwụ na-eguzogide, nwere ike. agaghị eji dị ka structural bonding.Ya mere, ọ dị mkpa iji belata brittleness, dịkwuo ike ma melite ike ibu.Ihe nwere ike ibelata brittleness na ịbawanye ike na-enweghị emetụta ihe ndị ọzọ bụ isi nke nrapado bụ ihe na-eme ka ọ dị ike.Enwere ike kewaa ya ka ọ bụrụ ihe na-eme ka rọba sie ike na ihe na-eme ka thermoplastic elastomer sie ike
Ntinye ngwaahịa na atụmatụ
(1) Ihe na-eme ka ihe na-eme ka rọba dị iche iche na-eme ka ọ dịkwuo mma gụnyere mmiri polysulfide roba, mmiri mmiri acrylic roba, mmiri polybutadiene roba, roba nitrile, ethylene propylene roba na styrene butadiene roba, wdg.
(2) Thermoplastic elastomer Thermoplastic elastomer bụ ụdị ihe eji eme ihe nke na-egosi ngbanwe rọba n'ime ụlọ okpomọkụ ma nwee ike ịmegharị ya na okpomọkụ dị elu.Ya mere, ụdị polymer a nwere àgwà nke ma roba na thermoplastic, a pụrụ iji ya mee ihe dị ka ihe na-esi ike nke ihe ndị mejupụtara, a pụkwara iji ya mee ihe dị ka ihe matrix nke ihe ndị mejupụtara.Ụdị ihe a na-agụnye polyurethane, styrene, polyolefin, polyester, interregular 1, 2-polybutadiene na polyamides na ngwaahịa ndị ọzọ, ugbu a dị ka onye na-eme ka ihe siri ike nke ihe mgbagwoju anya na-eji styrene na polyolefin ọzọ.
(3) Ihe ndị ọzọ na-eme ka ike sie ike Ihe ndị ọzọ na-eme ka ike dị mma dabara adaba maka ihe mejupụtara bụ polyamides dị arọ molekụla dị obere na ihe ndị na-eme ihe ike na-adịghị arụ ọrụ, dị ka phthalate esters.A pụkwara ịkpọ onye na-eme ihe ike na-adịghị arụ ọrụ plasticizer, nke na-adịghị etinye aka na mmeghachi omume ọgwụgwọ nke resin.
jiri
Ihe na-eme ka ihe siri ike dị mma maka nrapado, roba, mkpuchi na ngwaahịa ndị ọzọ.Ọ bụ ụdị onye na-enye aka nke nwere ike ibelata nhịkọ nke ihe ndị mejupụtara ma melite mmetụta nkwụsị nke ihe ndị mejupụtara.Enwere ike kewaa ya ka ọ bụrụ ihe na-eme ka ike sie ike na onye na-eme ihe ike na-adịghị arụ ọrụ.Arụ ọrụ toughening gị n'ụlọnga na-ezo aka molekụla yinye nwere ọrụ dị iche iche nwere ike na-emeghachi omume na matriks resin, nke nwere ike na-etolite a netwọk Ọdịdị, tinye a akụkụ nke mgbanwe yinye, ma si otú melite mmetụta iguzogide nke ihe mejupụtara ihe.Ihe na-eme ihe ike na-adịghị arụ ọrụ bụ ụdị ihe na-eme ka ike sie ike nke na-agbaze na resin matrix mana ọ naghị etinye aka na mmeghachi omume kemịkal.
ngwugwu na njem
B. Enwere ike iji ngwaahịa a,,25KG, BAERRLS.
C. A na-echekwa ụlọ ahịa na ebe dị jụụ, kpọrọ nkụ na ikuku ikuku n'ime ụlọ.Ekwesịrị ka a na-emechi arịa nke ọma mgbe ejiri ya nke ọ bụla tupu ejiri ya.
D. Ngwaahịa a kwesịrị ka a mechie nke ọma n'oge njem iji gbochie mmiri, alkali siri ike na acid, mmiri ozuzo na adịghị ọcha ndị ọzọ ịgwakọta.
