{"id":5996,"date":"2023-03-21T01:13:09","date_gmt":"2023-03-21T01:13:09","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5996"},"modified":"2024-11-07T15:27:50","modified_gmt":"2024-11-07T15:27:50","slug":"how-to-solve-the-caking-problem-of-powder-coating","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/id\/how-to-solve-the-caking-problem-of-powder-coating\/","title":{"rendered":"Bagaimana cara mengatasi masalah caking pada powder coating?"},"content":{"rendered":"

Bagaimana cara mengatasi masalah caking pada powder coating?<\/strong><\/h1>\n

 <\/p>\n

Pelapis serbuk memiliki kecenderungan untuk menggumpal pada suhu tertentu, yang terutama disebabkan oleh pelunakan resin, zat perata, dan bahan lain dalam pelapis serbuk saat terkena panas.<\/p>\n

Resin pelapis bubuk termoseting sebagai bahan pembentuk film utama adalah polimer organik dengan berat molekul rendah.<\/p>\n

 <\/p>\n

Resin ini memiliki sifat fisik, pada suhu yang lebih rendah, itu adalah keadaan kaca yang keras dan rapuh, ketika suhu naik ke tingkat tertentu, resin mulai berubah menjadi elastisitas tertentu dan menghasilkan keadaan adhesi, di bawah suhu ini, resin kembali ke keadaan kaca non-perekat, keadaan kaca resin dan keadaan viskoelastik dari suhu transformasi timbal balik disebut suhu transisi kaca resin.<\/p>\n

 <\/p>\n

Resin yang berbeda memiliki suhu transisi kaca yang berbeda, suhu transisi kaca resin epoksi dan resin poliester sekitar 50 derajat Celcius, suhu transisi kaca \u200d-zat perata cair di bawah nol derajat Celcius.<\/p>\n

 <\/p>\n

Semakin besar jumlah bahan bersuhu transisi kaca rendah yang ditambahkan ke formulasi pelapisan bubuk, semakin rendah suhu transisi kaca sistem. Suhu transisi kaca dari sistem bubuk diposisikan pada sekitar 40 derajat Celcius pada saat produksi, dan suhu ini ditetapkan sebagai suhu yang aman untuk aglomerasi lapisan bubuk. \u200d<\/p>\n

Peningkatan suhu akan memudahkan produk powder coating menggumpal, jadi bagaimana cara kita mencegah penggumpalan powder coating dalam pekerjaan kita?<\/p>\n

Pertama-tama, kita harus menetapkan konsep bahwa<\/p>\n

 <\/p>\n

Penggumpalan lapisan bubuk pada suhu tertentu adalah hukum alam. Untuk mencegah penggumpalan lapisan bubuk harus dalam seluruh proses produksi lapisan bubuk seperti penggilingan, pengemasan, penyimpanan dan transportasi, produk pelapis bubuk berada di bawah suhu transisi gelasnya. \u200d<\/p>\n

Berdasarkan pandangan ini, solusi berikut ini tersedia.<\/p>\n

 <\/p>\n

1) Dalam produksi resin poliester, pilih beberapa alkohol atau asam yang dapat meningkatkan suhu transisi gelasnya, atau kurangi jumlah alkohol yang dapat menurunkan suhu transisi gelas resin untuk meningkatkan suhu transisi gelas resin poliester.<\/p>\n

(2) Kurangi jumlah polimer suhu transisi kaca rendah yang digunakan dalam desain formulasi pelapisan bubuk, seperti zat perata dan zat pencerah, untuk memastikan bahwa suhu transisi kaca sistem pelapisan bubuk tidak akan berkurang.<\/p>\n

(3) Dalam produksi, pecahan yang pecah dari sabuk baja harus didinginkan secukupnya sebelum memasuki proses penggilingan, dan kecepatan pengumpanan harus dikurangi, volume udara yang diinduksi harus ditingkatkan, dan udara masuk harus dilengkapi dengan pendingin udara dingin untuk mengontrol suhu penggilingan. Namun, jika penggilingan sebelum potongan-potongan material yang dihancurkan mendingin, cara yang terakhir tidak akan memainkan peran yang baik, pertimbangkan metode pendinginan paksa bahan puing-puing yang rusak untuk perlakuan suhu rendah, yang lebih efektif daripada penambahan AC. \u200d<\/p>\n

Musim panas akan datang, dan pelapis bubuk sering kali memiliki kelompok bubuk dan bahkan gumpalan saat digunakan. Ini karena suhu dan kelembaban lingkungan yang tinggi selama produksi, penyimpanan, dan transportasi, dan suhu transisi kaca pelapis bubuk lebih dari 40 derajat. Untuk mencegah pelapisan bubuk dari penggumpalan dan aglomerasi selama proses aplikasi, aspek-aspek berikut harus diperhatikan.<\/p>\n

1. Saat memilih resin, gunakan beberapa resin dengan suhu transisi kaca (TG) yang tinggi. Suhu transisi gelas resin epoksi konvensional dan resin poliester adalah sekitar 50 \u2103, yang dapat memenuhi permintaan umum. Ketika persyaratan penyimpanan tinggi, resin sintetis dapat mengurangi penggunaan alkohol yang akan mengurangi suhu transisi gelas resin, menyembuhkan epoksi yang tersedia pengawetan amina alisiklik.<\/p>\n

2. Dalam desain formulasi pelapisan bubuk untuk mengurangi penggunaan polimer suhu transisi kaca rendah, seperti agen perata, suhu transisi kaca sekitar 30, Anda dapat menambahkan sedikit lebih sedikit. Penambahan plasticizer akan mengurangi kelompok resin yang kaku dan menurunkan TG resin, dan penambahan TGIC yang berlebihan juga akan menurunkan TG resin.<\/p>\n

3. Aditif tambahan termasuk zat pengalir bubuk kering dan zat anti penggumpalan tambahan, karbon hitam putih. Komponen utama agen aliran bubuk kering adalah beberapa bahan organik bubuk lilin untuk anti-adhesi. Agen anti-caking terutama milik kelas silikat zat anorganik, dan lembaran dihancurkan bersama dengan penggunaan saringan, dapat memainkan peran dalam mencegah penggumpalan adhesi bubuk. Menambahkan silika terutama berasap, berat jenis ringan, mudah menyerap kelembaban. Oleh karena itu, saat menggunakan untuk membubarkan dengan baik, hindari kelembaban, ditambah warna gelap tidak akan memiliki bintik-bintik putih.<\/p>\n

4. Proses produksi terutama mengontrol ekstrusi dan penggilingan dua tautan. Saat mengekstrusi, jalur panjang dan pendinginan fisik kipas dapat secara efektif mengurangi suhu serpihan, dan saat serpihan didinginkan, kemudian digiling. Saat menggiling bubuk, kecepatan pengumpanan dapat dikurangi, dan jumlah udara yang diinduksi dapat ditingkatkan dengan tepat, dan pendingin dapat ditambahkan ke saluran masuk udara untuk mengurangi suhu di dalam pipa jika perlu. Bubuk gerinda, untuk didinginkan hingga di bawah suhu kamar sebelum dikemas. Beberapa pabrik bubuk akan menjadi sekotak bubuk dengan dua kantong dalam kemasan terpisah, tetapi juga untuk mencegah penumpukan bubuk, sampai batas tertentu untuk mencegah penggumpalan bubuk.<\/p>\n

5. Bubuk harus disimpan di bengkel yang kedap cahaya dan kering, beberapa produk dengan kilau tinggi dan bunga mengambang yang mudah mengambang harus disimpan di gudang ber-AC, atau dibungkus dengan lapisan aluminium foil di sekitar insulasi produk. Pengangkutan harus menggunakan kendaraan ber-AC atau truk yang ditutupi dengan kain peneduh, bukan truk boks, dan harus menghindari penumpukan benda-benda berat.<\/p>\n

Kesimpulan: bahan baku bubuk yang menghadapi suhu tinggi yang mudah menggumpal adalah proses alami, belum tentu merupakan indikator evaluasi bahan baku yang baik atau buruk. Selain anti-caking suhu tinggi, pencegahan kebakaran dan pencegahan bencana dengan menjadi penting, mirip dengan bengkel untuk berhenti merokok, melarang pengisian daya mobil listrik, kabel peralatan yang terpapar, dll., adalah kelalaian kecil yang disebabkan oleh masalah besar.<\/p>\n

Cara untuk mengatasi lapisan bubuk yang mengeras.
\n1. Dalam produksi resin poliester, pilihlah alkohol atau asam yang dapat meningkatkan suhu transisi gelasnya, atau kurangi jumlah alkohol yang dapat mengurangi suhu transisi gelas resin untuk meningkatkan suhu transisi gelas resin poliester.
\n2. Dalam perencanaan formulasi pelapisan bubuk, kurangi jumlah polimer suhu transisi kaca rendah, seperti agen perata dan agen berwajah panjang, untuk memastikan bahwa suhu transisi kaca sistem pelapisan tidak turun.
\n3. Dalam hal produksi, pecahan yang pecah harus didinginkan secara memadai sebelum memasuki proses penggilingan, dan kecepatan penggilingan harus dikurangi dan volume udara harus ditingkatkan untuk mengontrol suhu penggilingan.<\/p>\n

Bahan baku Tinta UV: Monomer UV<\/span><\/a> Produk seri yang sama<\/strong><\/h2>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Polythiol \/ Polymercaptan<\/strong><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Monomer DMES<\/a><\/span><\/td>\nBis (2-merkaptoetil) sulfida<\/td>\n3570-55-6<\/td>\n<\/tr>\n
Monomer DMPT<\/a><\/span><\/td>\nTHIOCURE DMPT<\/td>\n131538-00-6<\/td>\n<\/tr>\n
Monomer PETMP<\/a><\/span><\/td>\nPENTAERITRITOL TETRA (3-MERKAPTOPROPIONAT)<\/td>\n7575-23-7<\/td>\n<\/tr>\n
PM839 Monomer<\/a><\/span><\/td>\nPolioksi (metil-1,2-etanadiil)<\/td>\n72244-98-5<\/td>\n<\/tr>\n
Monomer Monofungsional<\/strong><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Monomer HEMA<\/a><\/span><\/td>\n2-hidroksietil metakrilat<\/td>\n868-77-9<\/td>\n<\/tr>\n
Monomer HPMA<\/a><\/span><\/td>\n2-Hidroksipropil metakrilat<\/td>\n27813-02-1<\/td>\n<\/tr>\n
Monomer THFA<\/a><\/span><\/td>\nTetrahidrofurfuril akrilat<\/td>\n2399-48-6<\/td>\n<\/tr>\n
Monomer HDCPA<\/a><\/span><\/td>\nDiklopentenil akrilat terhidrogenasi<\/td>\n79637-74-4<\/td>\n<\/tr>\n
Monomer DCPMA<\/a><\/span><\/td>\nDihydrodicyclopentadienyl methacrylate<\/td>\n30798-39-1<\/td>\n<\/tr>\n
Monomer DCPA<\/a><\/span><\/td>\nDihydrodicyclopentadienyl Acrylate<\/td>\n12542-30-2<\/td>\n<\/tr>\n
Monomer DCPEMA<\/a><\/span><\/td>\nDicyclopentenyloxyethyl Methacrylate<\/td>\n68586-19-6<\/td>\n<\/tr>\n
Monomer DCPEOA<\/a><\/span><\/td>\nDicyclopentenyloxyethyl Acrylate<\/td>\n65983-31-5<\/td>\n<\/tr>\n
Monomer NP-4EA<\/a><\/span><\/td>\n(4) nonilfenol teretoksilasi<\/td>\n50974-47-5<\/td>\n<\/tr>\n
LA Monomer<\/td>\nLauril akrilat \/ Dodesil akrilat<\/td>\n2156-97-0<\/td>\n<\/tr>\n
Monomer THFMA<\/a><\/span><\/td>\nMetakrilat tetrahidrofurfuril<\/td>\n2455-24-5<\/td>\n<\/tr>\n
Monomer PHEA<\/span><\/a><\/td>\n2-FENOKSIETIL AKRILAT<\/td>\n48145-04-6<\/td>\n<\/tr>\n
Monomer LMA<\/a><\/span><\/td>\nLauril metakrilat<\/td>\n142-90-5<\/td>\n<\/tr>\n
IDA Monomer<\/a><\/span><\/td>\nIsodecyl acrylate<\/td>\n1330-61-6<\/td>\n<\/tr>\n
IBOMA Monomer<\/a><\/span><\/td>\nIsobornil metakrilat<\/td>\n7534-94-3<\/td>\n<\/tr>\n
IBOA Monomer<\/a><\/span><\/td>\nIsobornil akrilat<\/td>\n5888-33-5<\/td>\n<\/tr>\n
Monomer EOEOEA<\/a><\/span><\/td>\n2- (2-Etoksietoksi) etil akrilat<\/td>\n7328-17-8<\/td>\n<\/tr>\n
Monomer multifungsi<\/strong><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Monomer DPHA<\/a><\/span><\/td>\nDipentaeritritol heksaakrilat<\/td>\n29570-58-9<\/td>\n<\/tr>\n
Monomer DI-TMPTA<\/a><\/span><\/td>\nDI (TRIMETILOLPROPANA) TETRAAKRILAT<\/td>\n94108-97-1<\/td>\n<\/tr>\n
Monomer akrilamida<\/strong><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
ACMO Monomer<\/a><\/span><\/td>\n4-akrilamorfolin<\/td>\n5117-12-4<\/td>\n<\/tr>\n
Monomer di-fungsional<\/strong><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Monomer PEGDMA<\/a><\/span><\/td>\nPoli (etilen glikol) dimetakrilat<\/td>\n25852-47-5<\/td>\n<\/tr>\n
Monomer TPGDA<\/a><\/span><\/td>\nTripropilen glikol diakrilat<\/td>\n42978-66-5<\/td>\n<\/tr>\n
Monomer TEGDMA<\/a><\/span><\/td>\nTrietilen glikol dimetakrilat<\/td>\n109-16-0<\/td>\n<\/tr>\n
Monomer PO2-NPGDA<\/span><\/a><\/td>\nPropoksilat neopentilen glikol diakrilat<\/td>\n84170-74-1<\/td>\n<\/tr>\n
Monomer PEGDA<\/a><\/span><\/td>\nPolietilen Glikol Diakrilat<\/td>\n26570-48-9<\/td>\n<\/tr>\n
Monomer PDDA<\/a><\/span><\/td>\nFtalat dietilen glikol diakrilat<\/td>\n<\/td>\n<\/tr>\n
Monomer NPGDA<\/a><\/span><\/td>\nNeopentil glikol diakrilat<\/td>\n2223-82-7<\/td>\n<\/tr>\n
Monomer HDDA<\/a><\/span><\/td>\nHexamethylene Diacrylate<\/td>\n13048-33-4<\/td>\n<\/tr>\n
Monomer EO4-BPADA<\/span><\/a><\/td>\nTERETOKSILASI (4) BISPHENOL A DIAKRILAT<\/td>\n64401-02-1<\/td>\n<\/tr>\n
Monomer EO10-BPADA<\/a><\/span><\/td>\nTERETOKSILASI (10) BISPHENOL A DIAKRILAT<\/td>\n64401-02-1<\/td>\n<\/tr>\n
Monomer EGDMA<\/a><\/span><\/td>\nEtilen glikol dimetakrilat<\/td>\n97-90-5<\/td>\n<\/tr>\n
Monomer DPGDA<\/a><\/span><\/td>\nDipropilen Glikol Dienoat<\/td>\n57472-68-1<\/td>\n<\/tr>\n
Monomer Bis-GMA<\/a><\/span><\/td>\nBisphenol A Glisidil Metakrilat<\/td>\n1565-94-2<\/td>\n<\/tr>\n
Monomer Trifungsional<\/strong><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Monomer TMPTMA<\/a><\/span><\/td>\nTrimetilolpropana trimetakrilat<\/td>\n3290-92-4<\/td>\n<\/tr>\n
Monomer TMPTA<\/a><\/span><\/td>\nTriakrilat trimetilolpropana<\/td>\n15625-89-5<\/td>\n<\/tr>\n
PETA Monomer<\/a><\/span><\/td>\nPentaeritritol triakrilat<\/td>\n3524-68-3<\/td>\n<\/tr>\n
GPTA (G3POTA) Monomer<\/a><\/span><\/td>\nGLISERIL PROPOKSI TRIAKRILAT<\/td>\n52408-84-1<\/td>\n<\/tr>\n
Monomer EO3-TMPTA<\/a><\/span><\/td>\nTriakrilat trimetilolpropana teretoksilasi<\/td>\n28961-43-5<\/td>\n<\/tr>\n
Monomer Fotoresis<\/strong><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
IPAMA Monomer<\/a><\/span><\/td>\n2-isopropil-2-adamantil metakrilat<\/td>\n297156-50-4<\/td>\n<\/tr>\n
Monomer ECPMA<\/a><\/span><\/td>\n1-Etilsiklopentil Metakrilat<\/td>\n266308-58-1<\/td>\n<\/tr>\n
Monomer ADAMA<\/a><\/span><\/td>\n1-Adamantil Metakrilat<\/td>\n16887-36-8<\/td>\n<\/tr>\n
Monomer metakrilat<\/strong><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Monomer TBAEMA<\/a><\/span><\/td>\n2- (Tert-butilamino) etil metakrilat<\/td>\n3775-90-4<\/td>\n<\/tr>\n
Monomer NBMA<\/a><\/span><\/td>\nn-Butil metakrilat<\/td>\n97-88-1<\/td>\n<\/tr>\n
MEMA Monomer<\/a><\/span><\/td>\n2-Metoksietil Metakrilat<\/td>\n6976-93-8<\/td>\n<\/tr>\n
Monomer i-BMA<\/a><\/span><\/td>\nIsobutil metakrilat<\/td>\n97-86-9<\/td>\n<\/tr>\n
Monomer EHMA<\/a><\/span><\/td>\n2-Etilheksil metakrilat<\/td>\n688-84-6<\/td>\n<\/tr>\n
Monomer EGDMP<\/a><\/span><\/td>\nEtilen glikol Bis (3-merkaptopropionat)<\/td>\n22504-50-3<\/td>\n<\/tr>\n
Monomer EEMA<\/a><\/span><\/td>\n2-etoksietil 2-metilprop-2-enoat<\/td>\n2370-63-0<\/td>\n<\/tr>\n
Monomer DMAEMA<\/a><\/span><\/td>\nN, M-Dimetilaminoetil metakrilat<\/td>\n2867-47-2<\/td>\n<\/tr>\n
DEAM Monomer<\/a><\/span><\/td>\nDietilaminoetil metakrilat<\/td>\n105-16-8<\/td>\n<\/tr>\n
Monomer CHMA<\/a><\/span><\/td>\nSikloheksil metakrilat<\/td>\n101-43-9<\/td>\n<\/tr>\n
BZMA Monomer<\/a><\/span><\/td>\nBenzil metakrilat<\/td>\n2495-37-6<\/td>\n<\/tr>\n
Monomer BDDMP<\/a><\/span><\/td>\n1,4-Butanediol Di (3-merkaptopropionat)<\/td>\n92140-97-1<\/td>\n<\/tr>\n
Monomer BDDMA<\/a><\/span><\/td>\n1,4-Butanedioldimetakrilat<\/td>\n2082-81-7<\/td>\n<\/tr>\n
Monomer AMA<\/a><\/span><\/td>\nAlil metakrilat<\/td>\n96-05-9<\/td>\n<\/tr>\n
AAEM Monomer<\/a><\/span><\/td>\nAsetilasetoksietil metakrilat<\/td>\n21282-97-3<\/td>\n<\/tr>\n
Monomer Akrilat<\/strong><\/td>\n<\/td>\n<\/tr>\n
IBA Monomer<\/a><\/span><\/td>\nIsobutil akrilat<\/td>\n106-63-8<\/td>\n<\/tr>\n
Monomer EMA<\/a><\/span><\/td>\nEtil metakrilat<\/td>\n97-63-2<\/td>\n<\/tr>\n
Monomer DMAEA<\/a><\/span><\/td>\nDimetilaminoetil akrilat<\/td>\n2439-35-2<\/td>\n<\/tr>\n
DEAEA Monomer<\/a><\/span><\/td>\n2- (dietilamino) etil prop-2-enoat<\/td>\n2426-54-2<\/td>\n<\/tr>\n
CHA Monomer<\/a><\/span><\/td>\nsikloheksil prop-2-enoat<\/td>\n3066-71-5<\/td>\n<\/tr>\n
BZA Monomer<\/a><\/span><\/td>\nbenzil prop-2-enoat<\/td>\n2495-35-4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Hubungi Kami Sekarang!<\/b><\/strong><\/h2>\n

Jika Anda membutuhkan COA, MSDS atau TDS dari UV Monomer, silakan isi informasi kontak Anda di formulir di bawah ini, kami biasanya akan menghubungi Anda dalam waktu 24 jam. Anda juga bisa mengirim email kepada saya info@longchangchemical.com<\/a><\/span> selama jam kerja (8:30 pagi hingga 6:00 sore UTC+8 Senin-Sabtu) atau gunakan obrolan langsung situs web untuk mendapatkan balasan secepatnya.<\/b><\/strong><\/h4>","protected":false},"excerpt":{"rendered":"

Bagaimana cara mengatasi masalah penggumpalan pada lapisan bubuk? Pelapis bubuk memiliki kecenderungan untuk mengeras pada suhu tertentu, yang terutama disebabkan oleh pelunakan resin, zat perata, dan bahan lain dalam pelapis bubuk saat terkena panas. Resin pelapis bubuk termoseting sebagai bahan pembentuk film utama [...]<\/p>","protected":false},"author":1,"featured_media":5998,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[143],"tags":[],"class_list":["post-5996","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uv-light-curing-series"],"yoast_head":"\nHow to solve the caking problem of powder coating? - Longchang Chemical<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/id\/how-to-solve-the-caking-problem-of-powder-coating\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to solve the caking problem of powder coating? - Longchang Chemical\" \/>\n<meta property=\"og:description\" content=\"How to solve the caking problem of powder coating?   Powder coatings have the tendency to caking at a certain temperature, which is mainly due to the softening of the resin, leveling agent and other materials in the powder coating when they encounter heat. 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