akụkọ

E nwere ụdị resin abụọ e ji emepụta ihe mejupụtara ya: thermoset na thermoplastic. Resin Thermoset bụ resin kachasị ewu ewu, mana resin thermoplastic na-enweta mmasị ọhụrụ n'ihi mmụba nke ojiji nke ihe mejupụtara ya.
Resin Thermoset na-esi ike n'ihi usoro ọgwụgwọ, nke na-eji okpomọkụ emepụta polima ndị nwere njikọ siri ike nke na-anaghị agbaze ma ọ bụ nke a na-apụghị ịgbaze mgbe a na-ekpo ọkụ. Resin Thermoplastic, n'aka nke ọzọ, bụ alaka ma ọ bụ agbụ nke monomers nke na-eme ka ọ dị nro mgbe a na-ekpo ọkụ ma sie ike ozugbo a jụrụ ya oyi, usoro a na-agbanwe agbanwe nke na-anaghị achọ njikọ kemịkalụ. Na nkenke, ị nwere ike ịgbaze ma gbanwee resin thermoplastic, mana ọ bụghị resin thermoset.

Mmasị na ihe mejupụtara thermoplastic na-eto eto, ọkachasị n'ụlọ ọrụ ụgbọala.

Uru nke Resins Thermosetting
A na-ahọrọ resin Thermoset dị ka epoxy ma ọ bụ polyester n'ime mmepụta ihe mejupụtara n'ihi obere viscosity ha na ntinye ha nke ọma n'ime netwọk eriri. Ya mere, o kwere omume iji eriri ndị ọzọ ma mee ka ike nke ihe mejupụtara emechara dịkwuo elu.

Ọgbọ ụgbọelu kachasị ọhụrụ na-agụnyekarị ihe karịrị pasentị iri ise nke ihe mejupụtara ya.

N'oge pultrusion, a na-etinye eriri n'ime resin thermoset ma tinye ya n'ime ebu ọkụ. Ọrụ a na-eme ka mmeghachi omume ọgwụgwọ nke na-agbanwe resin dị obere nke molekul ka ọ bụrụ usoro netwọk siri ike nke eriri na-akpọchi na netwọk ọhụrụ a. Ebe ọ bụ na ọtụtụ mmeghachi omume ọgwụgwọ bụ exothermic, mmeghachi omume ndị a na-aga n'ihu dị ka agbụ, na-eme ka mmepụta buru ibu. Ozugbo resin ahụ rịgoro, usoro nhazi atọ ahụ na-akpọchi eriri ndị ahụ ma na-enye ike na ike na ngwakọta ahụ.