Yadda Fihirisar Ruwan Narke Ya Shafi Ayyukan Rufe Foda na LDPE

Ma'anar narkewar ruwa (MI), wanda kuma aka sani da ƙimar narkewar ruwa (MFR), alama ce mai mahimmanci don auna narkewar ruwa na polyethylene LDPE foda a ƙarƙashin takamaiman yanayin zafi da matsa lamba. Ƙimar sa kai tsaye yana rinjayar aikin sarrafawa, ingancin samar da fim, da kaddarorin jiki na ƙarshe na sutura. Wadannan su ne takamaiman tasirin ma'anar kwararar narkewa akan kaddarorin LDPE foda kayan shafa:

1. Tasiri akan Ayyukan Gudanarwa

Ruwan Ruwa da Ingantaccen Rufi

• Babban MI (misali,> 20g / 10min): Narkakken foda yana da sauƙi don yadawa, wanda ya dace da substrates tare da sifofi masu rikitarwa, rami mai zurfi, ko raguwa mai kyau (kamar bututu da sassa na musamman). Zai iya cike giɓi da sauri kuma ya rage maki yatsan ruwa.
• Low MI (misali, <5g/10min): Narkar tana da babban danko da rashin ruwa mara kyau. A lokacin sutura, ana buƙatar zafin jiki mafi girma ko matsa lamba; in ba haka ba, matsaloli irin su suturar da ba ta dace ba da kumfa suna da wuyar faruwa. Ya fi dacewa da jiragen sama masu sauƙi ko buƙatun sutura mai kauri (kamar saman faranti).

Gudun Warware da Ingantaccen Samar da Samfurin

LDPE tare da babban MI yana kwantar da sauri kuma yana warkarwa da sauri bayan narkewa, wanda zai iya rage lokacin warkewa akan layin samarwa kuma yana haɓaka ou.tput kowane lokaci naúrar; low MI yana da saurin shafa fata saboda rashin daidaituwa a lokacin sanyaya saboda babban danko, don haka yana buƙatar lokaci mai tsawo.

2. Tasiri akan Bayyanar Rufi

• Flatness da sheki: Narke tare da babban MI yana da ruwa mai kyau. Bayan shafewa, yana iya gudana kuma yana daidaitawa ta dabi'a, yana samar da sutura mai santsi kuma mai sheki, da rage lahani irin su bawo na lemu da filaye; narke tare da ƙananan MI yana da wuyar gudana da matakin, kuma rufin rufin yana da wuyar zama m tare da ƙananan haske, har ma da sagging (a lokacin rufin saman tsaye) na iya faruwa.
• Haɓaka Kauri: Babban MI ya dace da suturar bakin ciki (misali, 10-50μm), kuma ana iya samun kauri iri ɗaya ta sarrafa lokacin narkewa; low MI ya fi dacewa da kauri mai kauri (misali, 50-200μm), amma adadin murfin yana buƙatar sarrafa shi daidai, in ba haka ba tarin gida ko kauri mara daidaituwa yana yiwuwa ya faru saboda rashin ruwa mara kyau.

3. Tasiri akan Abubuwan Jiki na Rubutun

• Adhesion: LDPE coatings tare da matsakaici MI (misali, 5-20g / 10min) suna da mafi kyawun mannewa: narke ba zai iya shiga cikin ƙananan pores a kan farfajiyar ƙasa don samar da haɗin kai na inji ba, amma kuma ba zai haifar da shiga tsakani da hasara ba saboda maƙarar ruwa mai ƙarfi (high MI) ko rashin daidaituwa saboda rashin isasshen ruwa (ƙananan MI).
• Tauri da Sawa Resistance: LDPE shafi tare da low MI yana da madaidaicin sarkar sarkar kwayoyin halitta, kuma rufin yana da ƙarfi mafi girma kuma mafi kyawun juriya bayan sanyaya, wanda ya dace da yanayin yanayi tare da manyan buƙatu akan kaddarorin injin (kamar benaye da saman kayan aiki); rufin tare da babban MI yana da tsari maras kyau, ƙananan tauri, kuma yana da sauƙin za'a, amma yana da sassauci mafi kyau.
• Sauƙaƙewa da Ƙarfafa Tasiri: Rufin LDPE tare da babban MI yana da mafi kyawun sassauci kuma yana iya jure wa ɗan lahani na substrate (kamar lanƙwasa da girgiza) ba tare da fashewa ba, wanda ya dace da sauƙaƙan nakasassu kamar filastik da zanen ƙarfe; Rubutun tare da ƙananan MI yana da ƙarancin sassauci kuma yana da sauƙi ga karaya lokacin da aka yi tasiri, amma yana da ɗan ƙaramin ƙarfi.

PECOAT® ƙirƙira ƙididdiga mai narkewa (MI) bisa ga samfurin da za a shafa.

4.Summary

• Don hadaddun siffofi, suturar bakin ciki, da buƙatun masu sheki → babban MI (misali, 20-100g / 10min);
• Don kauri mai kauri, babban taurin, da buƙatun juriya → ƙananan MI (misali, 0.5-5g / 10min);
• Don daidaita mannewa da yanayin duniya → matsakaici MI (misali, 5-20g/10min).

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