Ihe na-eme ka ákwà sie ike bụ ihe e ji emepụta ihe ndị ...
Na mba ndị mepere emepe n'ebe ọdịda anyanwụ, emulsion polyacrylate ogige n'ihi ọnụ ala ya dị ala, njikọ dabara adaba, arụmọrụ kwụsiri ike na uru ndị ọzọ na ụlọ ọrụ ibipụta akwa na akwa akwa ejirila ọtụtụ ebe. Ihe nkwụsi ike a na-ejikarị eme ihe bụ: melamine resin, urea-formaldehyde resin, polyacrylate, polyvinyl acetate, polyvinyl alcohol na starch, na ngwaahịa ha gbanwere.
Uru na ọghọm dị na stiffeners
aha | uru | ọghọm |
Melamine resin | Mgbe agwụcha ákwà isi ike, shrinkage, elasticity, na-eche ka mma, karịsịa maka sịntetik eriri stiffness mmetụta dị mma. | Mgbe agwụchara, ákwà dị mfe banye mmiri mmiri, ike na isiike iju, yellowing na ike iju, ntọhapụ nke free formaldehyde, wdg Emecha gị n'ụlọnga nchekwa kwụsie ike bụ ogbenye. |
Urea-formaldehyde resin | Mgbe emechara, akwa ahụ nwere nkwụsi ike ka mma yana ọnụ ala akụrụngwa dị ala. | Mgbe emechara, akwa ahụ enweghị ngbanwe na-adịghị mma, mmetụta aka siri ike, nnukwu mbelata, nguzogide ịsa ahụ adịghị mma na ntọhapụ nke formaldehyde n'efu. Nkwụsi ike nchekwa na-adịghị mma nke onye na-emecha ihe. |
Polyacrylates na polyvinyl acetates | Ọ nwere njirimara nke nguzogide ọkụ, nkwụsị ịka nká na enweghị odo. Ọ dị mfe ịmekọrịta, nkwụsi ike nchekwa dị mma, anaghị emepụta formaldehyde n'efu. Mmetụta siri ike dị mma, ọkachasị maka imecha akwa eriri cellulose. | Otu ego nke onye na-emecha ihe, mmetụta siri ike na akwa sịntetik dị ala karịa resin melamine. Mgbe emechara, akwa ahụ enweghị ngbanwe na mmetụta siri ike. Polyvinyl acetate na-akụrikụ ma nwee nguzogide ntu oyi na-adịghị mma. |
Mmiri Polyvinyl | Ọ nwere ezigbo rheology ma nwee ike ịmepụta ihe nkiri nwere ike dị elu, nke nwere mmetụta siri ike na akwa cellulose. | O siri ike imebi n'okpuru ebe okike ma nwee ike ịmepụta nnukwu ụfụfụ na mmiri. Onye na-emecha ihe na akwa ákwà mgbe okpomọkụ dị mfe iji mee ka ọ dị nro ma na-agbapụta ọbara, adịghị ọcha na-adịghị mma. |
starch emezigharịrị | Ọ dị mfe ịnweta akụrụngwa, ọnụ ala dị ala, nke na-adịghị emebi emebi, dị mfe iji, biodegradable, ma nwee ike ime ka ákwà ahụ nwee mmetụta siri ike. | Mgbe emechara, nkwụsi ike nke ákwà ahụ na-ebelata na mmiri, ọ dịkwa mfe imebi ma ghọọ ebu. Nguzogide ịsa ahụ na-adịghị mma, mmetụta aka ike na-adịghị mma, na nkwụ adịghị mma. |
Hazie isi ihe
Usoro nchịkọta anụ ahụ na-enwe mmetụta dị ukwuu na formaldehyde n'elu akwa ákwà na nkwụsi ike nke ákwà ahụ mgbe ọ gwụchara. Site na mmụba nke oge ịsa nri na ikpo ọkụ ọkụ, isi ike na-abawanye na ọdịnaya formaldehyde dị n'elu ákwà na-ebelata nke ukwuu. Mgbe a na-achịkwa usoro nhazi na 200 ° C × 60s, formaldehyde na akwa ákwà nwere ike iru n'okpuru 75ppm.
Nke a bụ n'ihi na nkwalite nke usoro ihicha, crosslinking nke stiffener na-ezuru oke, ya mere nkwụsi ike nke ákwà ahụ mgbe ọ gwụchara na-abawanye. N'aka nke ọzọ, formaldehyde na akwa ákwà na-emecha dị mfe iji gbanwee n'okpuru ọnọdụ okpomọkụ dị elu, na-akpata obere formaldehyde na akwa ikpeazụ.
E nwere mmeghachi omume nguzozi a na-agbanwe agbanwe n'etiti ihe na-eme ka ihe sie ike na formaldehyde. Mgbe mgbanwe nke gburugburu ebe obibi dị n'èzí (dịka: okpomọkụ, iru mmiri, pH, wdg), a ga-ekewapụ formaldehyde mgbe niile. Mgbe emechara ihe nlele ákwà mbụ ahụ, formaldehyde dị ala, ka oge nchekwa ahụ na-abawanye nwayọ nwayọ. Mgbe oge nchekwa ahụ ruru ụbọchị 10-12, akwa formaldehyde na-eme ka ọ kwụsie ike.
Ọ bụrụ na echekwara ya na gburugburu ebe ikuku na-adịghị, formaldehyde a tọhapụrụ ga-agbakọbawanye, a ga-enwe mmetụta dị egwu na obi ọjọọ. A na-atụ aro na akwa ahụ mgbe emechara ya na resin hardening kwesịrị ịchekwa ya na ebe nwere ezigbo ikuku.
Ọnọdụ ọdabara nke ụdị stiffener ọ bụla
- Akwa akwa mgbe emechara isi ike: mmanya polyvinyl> polyacrylate> starch> resin melamine.
- Polyester akwa mgbe emechara isi ike: polyvinyl mmanya> starch> melamine resin> polyacrylate.
- Ịsacha ngwa ngwa: polyacrylate> mmanya polyvinyl> resin melamine> starch.
- Polyvinyl mmanya na owu na akwa polyester ka emechara isi ike na-ebuwanye ibu, mana mmetụta ahụ ka njọ. N'ime akwa polyester abụghị ihe na-agbanwe dị ka melamine resin, ịsacha ngwa ngwa bụ nke abụọ na polyacrylate. Starch agwụcha ákwà isi ike dị mma, nke abụọ bụ naanị mmanya polyvinyl, mana ngwa ngwa ịsa ahụ adịghị mma.
- Melamine resin na-emecha akwa polyester, mmetụta isi ike dịtụ mma, yana mmetụta siri ike na ngbanwe ka mma. Ma na owu na-emecha mmetụta adịghị mma, na mgbe emechara ákwà ahụ ga-ahapụ formaldehyde. Polyacrylate na owu na stiif finishing mmetụta ka mma, na polyester ákwà finishing mmetụta adịghị mma, ma ịsacha ngwa ngwa kasị mma.
Maka ozi ndị ọzọ gbasara SINOYQX modified melamine formaldehyde resin, biko kpọtụrụ anyị site na email: [email protected] , ma ọ bụ kpọọ anyị oku na: +86-28-8411-1861.
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