Tsarin fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen fale-falen buraka da ma'auni) dole ne a sami samfuran a cikin masana'antar gini. Ana amfani da su don haɗa fale-falen yumbura zuwa wurare daban-daban, gami da bango da benaye. Wani muhimmin sashi na waɗannan samfuran shine RDP polymer. RDP yana nufin Redispersible Polymer Powder, wanda shine copolymer na vinyl acetate da ethylene. Polymers suna taka muhimmiyar rawa a cikin ƙirar manne da putty kuma suna tasiri nau'ikan kaddarorin, gami da mannewa, haɗin kai, karko da iya aiki. Wannan labarin zai tattauna abubuwan da za a yi la'akari da su lokacin zabar RDP polymer da ya dace da tasirinsa akan mannen tayal da kayan kwalliya.
1. Adhesion
Adhesion shine ikon samfur don mannewa saman daban-daban. Abubuwan mannewa na polymers na RDP sun dogara da tsarin sinadarai, nauyin kwayoyin halitta da digiri na haɗin giciye na polymer. Tsarin sinadarai na RDP polymer yana ƙayyade nau'ikan saman da ya dace da su. Alal misali, ɓangaren vinyl acetate na polymer yana da babban mannewa ga wuraren da ba na iyakacin duniya kamar PVC da PE. Ethylene, a gefe guda, yana da babban mannewa zuwa saman iyakacin duniya kamar siminti da itace.
Don cimma ƙarfin mannewa, ana ba da shawarar yin amfani da polymers RDP masu nauyi masu nauyi. Maɗaukakin nau'in nau'in nau'in polymers suna haifar da ƙarfin intermolecular ƙarfi, yana haifar da mafi kyawun mannewa. Matsayin haɗin giciye yana rinjayar solubility na RDP polymer kuma don haka abubuwan da aka haɗa su. Polymers masu haɗe-haɗe da yawa ba su da narkewa kuma suna da ƙananan kaddarorin manne fiye da ƙarancin polymers masu haɗin giciye.
2. Hadin kai
Haɗin kai yana nufin ƙarfin samfur don mannewa kansa. Abubuwan haɗin kai na RDP polymers suna da alaƙa da yanayin canjin gilashin (Tg) na polymer. Tg na RDP polymer yana ƙayyade yawan zafin jiki wanda polymer ya canza daga rubbery zuwa yanayin gilashi. Polymers tare da Tg sama da zafin jiki suna nuna kyakkyawan haɗin kai, yayin da polymers tare da Tg a ƙasa da zafin jiki suna nuna rashin daidaituwa.
Don kyakkyawar haɗin kai, ana ba da shawarar yin amfani da polymers na RDP tare da Tg sama da zafin jiki. Mafi girma na Tg polymers suna haɓaka ƙarfin intermolecular ƙarfi, yana haifar da ingantacciyar haɗin kai. Hakanan ana ba da shawarar yin amfani da polymers na RDP mafi girma don haɓaka haɗin kai.
3. Dorewa
Dorewa wani muhimmin kadara ne na mannen tayal da kayan aikin putty. Dorewar polymers na RDP yana shafar juriya ga ruwa, zafi da lalata UV. Abun vinyl acetate na RDP polymer yana kula da hydrolysis, wanda ya haifar da raguwa a cikin yanayin danshi.
Don ingantacciyar karko, ana ba da shawarar yin amfani da polymers na RDP tare da babban abun ciki na ethylene. Vinyl yana da kyawawan abubuwan juriya na ruwa da danshi don haka yana da mafi kyawun karko. RDP polymers tare da ƙananan abun ciki na vinyl acetate suma suna nuna tsayin daka. Bugu da ƙari, RDP polymers tare da kyakkyawan juriya na UV ana ba da shawarar don aikace-aikacen waje.
4. Yin aiki
Ƙarfin aiki yana nufin sauƙi na aikace-aikacen mannen tayal da tsarin sabulu. The processability na RDP polymers yana shafar su barbashi size, girma yawa, da watsawa. Ƙananan ƙananan ƙwayoyin RDP polymers suna nuna kyakkyawan aiki saboda suna tarwatsawa cikin sauri cikin ruwa, yana haifar da ƙwanƙwasa mai santsi ko gaurayawan sabulu. Bugu da ƙari kuma, RDP polymers tare da ƙananan ƙananan yawa suna nuna kyakkyawan aiki kamar yadda suke buƙatar ƙarancin ƙoƙari don haɗuwa.
Don inganta aiwatarwa, ana ba da shawarar yin amfani da polymers na RDP tare da ƙananan ƙananan ƙwayoyin cuta da ƙananan ƙarancin girma. Bugu da ƙari, ana ba da shawarar yin amfani da polymers na RDP tare da babban tarwatsawa a cikin ruwa don cimma saurin tarwatsawa da gaurayawan santsi.
a karshe
Zaɓin madaidaicin RDP polymer don mannen tayal da kayan kwalliya yana da mahimmanci don samun ingantaccen ingancin samfur. Adhesion, haɗin kai, dorewa da aiki na polymer yana shafar aikin samfur. Abubuwan da za a yi la'akari da lokacin zabar polymer RDP mai dacewa sun haɗa da tsarin sinadarai, nauyin kwayoyin halitta, digiri na haɗin giciye, zafin jiki na gilashin, juriya ga ruwa, zafi da lalata UV, girman barbashi, yawan yawa da watsawa. Yin la'akari da hankali na waɗannan abubuwan na iya haifar da mafi kyawun zaɓi na RDP polymer da mafi kyawun mannen tayal da kayan kwalliya.
Lokacin aikawa: Oktoba-07-2023