I ngā tau tata nei, he maha ngā paura rapa kapia, ngā paura rapa ātete-wai kaha-teitei me ētahi atu paura rapa tino iti te utu kua puta ki te mākete hei whakakapi i te emulsion VAE tuku iho (vinyl acetate-ethylene copolymer), he mea whakamaroke-rehu, ā, ka taea te hangarua. He paura rapa marara, he aha te rerekētanga i waenga i te paura rapa kapia me te paura rapa marara anō, ka taea te whakakapi i te paura rapa marara anō? Mā te Yongqiang Mortar Technology Center koe e ārahi ki te tātari poto i te rerekētanga i waenga i ngā mea e rua hei tohutoro māu:
1. Paura rapa ka taea te whakamarara anō
I tēnei wā, ko ngā paura pūmua marara e whakamahia whānuitia ana i te ao ko: te paura rapa vinyl acetate me te ethylene copolymer (VAC/E), te paura rapa ethylene me te vinyl chloride me te vinyl laurate terpolymer (E/VC/VL), te paura rapa vinyl ester me te ethylene me te waikawa ngako teitei (VAC/E/VeoVa), ko ēnei paura pūmua marara e toru te nuinga o te mākete, inā koa te paura rapa vinyl acetate me te ethylene copolymer. Ko te VAC/E/VeoVa E te mea nui i te ao whānui, ā, ko ngā āhuatanga hangarau o ngā paura pūmua marara tonu. Koia tonu te otinga hangarau pai rawa atu i runga i te wheako hangarau me ngā pūmua e whakamahia ana ki te whakarerekētanga moata:
1. Ko tētahi o ngā pūmua e whakamahia nuitia ana i te ao;
2. Kei a rātou te wheako tono nui rawa atu i roto i te mara hanga;
3. Ka taea e ia te whakatutuki i ngā āhuatanga rheological e hiahiatia ana e te moata (arā, te kaha mahi e hiahiatia ana);
4. Ko te kapia pūmua me ētahi atu monomer he āhuatanga o ngā pūhui waro iti (VOC) me ngā hau whakapataritari iti;
5. He āhuatanga pai tōna, he ātete pai ki te UV, he ātete pai ki te wera, ā, he pumau mō te wā roa;
6. He ātete nui ki te waikura;
7. Kei a ia te whānuitanga pāmahana whakawhiti karāhe whānui rawa atu (Tg);
8. He pai te hononga whānui, te ngāwari me ngā āhuatanga hangarau;
9. He roa rawa te wheako ki te hanga matū mō te whakaputa hua kounga pumau, me te wheako hoki ki te pupuri i te pumau o te rokiroki;
10. He māmā te whakakotahi me te colloid tiaki (waipiro polyvinyl) me te mahi tino pai.
2. Paura kapia
Ko te nuinga o ngā paura rapa "reini" kei te mākete kei roto te matū DBP. Ka taea e koe te tirotiro i te kino o tēnei matū, e pā ana ki te mahi tāne. He nui ngā paura rapa pēnei e puranga ana i roto i ngā whare putunga me ngā taiwhanga, ā, he rerekē te āhua ki tētahi taumata. Ko te mākete o Beijing, e rongonui ana mō tana hanga "paura rapa", kua puta mai ināianei he momo "paura rapa" kua rumakina ki ngā whakarewa me ngā ingoa rerekē: te paura piri ātete-wai kaha-teitei, te paura piri reini, me ētahi atu. Ngā āhuatanga noa:
1. Kāore e tino marara, ko ētahi e mākū ana, ko ētahi e pupuhi ana (me waiho hei rauemi pūwero pērā i te sepiolite), ā, ko ētahi he mā, he paku maroke engari he haunga tonu;
2. He kakara tino pīrangi;
3. Kua tāpirihia ētahi tae, ā, ko ngā tae o nāianei he mā, he kōwhai, he hina, he mangu, he whero, me ētahi atu;
4. He iti noa te nui o te tāpiri, ā, ko te nui o te tāpiri mō te kotahi tana he 5~12 kg;
5. He mīharo te kaha o te tīmatanga. Kāore he kaha o te sima mō ngā rā e toru, ā, ka taea e ia te waikura i te papa whakamahana me te piri.
6. E kiia ana ka taea te whakamahi i te papa XPS me te kore he kaihoko atanga.
Mai i ngā tauira i whiwhihia tae noa mai ki tēnei wā, ka taea te whakatau he kapia whakarewa tēnei e piri ana ki ngā rauemi mama, engari e hiahia ana te kaiwhakarato kia kaua e whakamahi i te kupu "whakarewa", nō reira i huaina ai ko te "paura rapa".
ngoikoretanga:
1. He raruraru nui te ātete o te whakarewa ki te huarere. I te rā, ka memeha haere i roto i te wā poto. Ahakoa kāore i te rā, ka tere ake te memeha o te hononga nā te hanganga o te kōhao;
2. Ātete ki te koroheketanga, kāore te whakarewa e ātete ki te pāmahana, e mōhio ana te katoa ki tēnei;
3. Nā te mea ko te tikanga here he whakarewa i te atanga o te papa whakamahana, engari, ka whakangaromia hoki te atanga here. Mēnā he raruraru i te wāhanga o muri mai, ka mate te pānga;
4. Kāore he tauira mō te whakamahinga ki tāwāhi. Nā te wheako pakeke o te umanga matū taketake ki tāwāhi, e kore e taea te kore e kitea tēnei rauemi.
whakarāpopototanga:
Paura pūmua marara:
1. Ko te paura rapa ka taea te whakamarara anō he paura ka taea te whakamarara anō wairewa-wai, he copolymer o te ethylene me te vinyl acetate, ā, e whakamahi ana i te waipiro polyvinyl hei colloid tiaki.
2. He āhuatanga hanga kiriata te paura rapa ka taea te whakamarara anō o te VAE, ka hangaia he emulsion e te 50% o te wairewa, ā, ka hangaia he kiriata rite ki te kirihou i muri i te whakatakotoranga ki runga i te karāhe mō ngā haora 24.
3. He ngāwari, he ātete wai hoki te kiriata kua hangaia. Ka taea te eke ki ngā paerewa ā-motu.
4. He tino pai te mahi a te paura rapa ka taea te whakamarara anō: he kaha ki te piri, he ahurei te mahi, ā, he tino pai te mahi ā-wai, he kaha te piri, he ātete ki te kawakore te moata, ā, ka taea te whakapai ake i te piri me te kaha piko o te moata. , te kirihou, te ātete ki te kakahu me te hanganga, he kaha ake te ngāwari i roto i te moata ārai-pakaru.
Paura kapia:
1. He momo whakarerekētanga hou te paura rapa kapia mō te rapa, te kapia, te polymer macromolecular, te paura rapa whenua me ētahi atu matū.
2. He roa te mau o te paura rapa kapia, he ātete ki te pakū, he ngoikore te horapa, he ahua pupuhi ētahi (me waiho hei rauemi pūwero pērā i te sepiolite), he paura mā (engari he kakara haunga rite ki te hinuhinu).
3. Ka waikura ētahi paura kapia ki te papa, ā, kāore i te pai te ārai wai.
4. He iti ake te ātete o te paura rapa kapia ki te huarere me te wai i ērā o te paura rapa. He raruraru nui te ātete ki te huarere. I te rā, ka memeha haere i roto i te wā poto. Ahakoa kāore i te rā, ka tere ake te pirau o te hononga, nā te mea he hanganga kōhao.
5. Kāore te paura rapa kapia e taea te hanga, kāore hoki e ngāwari. E ai ki te paerewa tirotiro o te moata whakamarumaru o waho mō ngā pakitara o waho, ko te tere whakangaromanga o te papa polystyrene anake e tutuki ana i te paerewa. Kāore ētahi atu tohu i te eke ki te paerewa.
6. Ka taea anake te whakamahi i te paura kapia hei here i ngā papa polystyrene, ehara i te mea hei here i ngā pirepire whakakoi me ngā papa ātete ahi.
Wā tuku: Oketopa-31-2022