{"id":3332,"date":"2020-10-09T11:04:08","date_gmt":"2020-10-09T11:04:08","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=3332"},"modified":"2026-04-28T10:41:47","modified_gmt":"2026-04-28T10:41:47","slug":"microwave-in-plastic-additives","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/id\/microwave-in-plastic-additives\/","title":{"rendered":"Efek migrasi microwave pada bahan tambahan plastik"},"content":{"rendered":"<h4 class=\"wp-block-heading\">Plastik adalah salah satu bahan yang paling sering dijumpai dalam kehidupan sehari-hari. Bahan ini sangat disukai oleh konsumen karena keunggulan bentuknya yang sederhana, harganya yang murah, tahan terhadap pelarut, tahan korosi dan ringan. Namun, sifat intrinsik bahan polimer tidak dapat memenuhi kebutuhan berbagai skenario penggunaan. Oleh karena itu, dalam proses produksi, orang akan menambahkan aditif yang berbeda pada plastik untuk meningkatkan kinerja.<\/h4>\n\n<!-- lc-qa-start -->\n<p><strong>Quick answer:<\/strong> For antioxidant, UV absorber, and HALS topics, formulators usually compare long-term protection, process stability, and color control together because those priorities do not always point to the same additive.<\/p>\n<!-- lc-qa-end -->\n\n\n\n\n\n\n<h4 class=\"wp-block-heading\">Senyawa molekul kecil dalam plastik terutama muncul dalam dua cara:<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">1. Untuk bahan polimer yang diperoleh dengan polimerisasi adisi atau polimerisasi kondensasi monomer, inisiator biasanya ditambahkan selama proses polimerisasi, dan mungkin terdapat jejak inisiator dan monomer serta senyawa molekul kecil lainnya yang tersisa di dalam bahan setelah polimerisasi;<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">2. Bahan aditif ditambahkan untuk memenuhi sifat-sifat tertentu dari plastik selama pencetakan, seperti pemlastis, antioksidan, penghambat api, penstabil cahaya, pengisi anorganik, dan senyawa molekul kecil lainnya. Seiring dengan bertambahnya waktu penggunaan, jejak molekul kecil tertentu akan bermigrasi di dalam plastik atau bahkan bocor keluar dari plastik, yang mengakibatkan penurunan kinerja produk plastik. Situasi ini lebih mungkin terjadi di bawah pemanasan, microwave, tekanan tinggi, dan lingkungan lainnya.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Di bawah aksi gelombang mikro, rantai polimer polimer bergetar karena aksi medan elektromagnetik bolak-balik, yang menyebabkan senyawa molekul kecil ini larut dan berpindah ke makanan, udara, dan jalur produksi. Ketika migrasi mencapai rasio tertentu, hal ini dapat mempengaruhi kinerja plastik. Hal ini dapat menyebabkan hal-hal yang berbahaya terjadi.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Saat ini, Cina hanya memiliki sedikit penelitian tentang struktur dan mekanisme migrasi senyawa yang berperan penting dalam proses migrasi. Dalam beberapa tahun terakhir, para peneliti telah mempelajari empat senyawa molekul kecil yang umum dalam plastik (Butylated Hydroxytoluene, Antioksidan 168, <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/longchangchemical.com\/id\/product\/light-stabilizer-770-tinuvin-770-cas-52829-07-9\/\" target=\"_blank\"><span class=\"has-inline-color has-pale-cyan-blue-color\">Penstabil Cahaya 770<\/span><\/a><\/strong>Dibutil ftalat). ) Aturan migrasi dari 5 jenis bahan kemasan plastik (polietilena PE, polipropilena PP, polistirena PS, polimetil metakrilat PMMA, dan polietilena tereftalat) dibandingkan. Perlu dicatat bahwa untuk mensimulasikan kondisi ekstrem dan memfasilitasi pengujian, pekerjaan penelitian menambahkan senyawa molekul kecil ke lima bahan kemasan plastik dengan kandungan 1,00%, yang sangat melebihi rasio konsentrasi yang umum digunakan untuk senyawa-senyawa ini, sehingga hasil yang terukur umumnya terlalu besar dan hanya digunakan sebagai referensi tren dan tidak menjelaskan eksudasi yang sebenarnya.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Yang pertama adalah perbandingan perkiraan migrasi molekul kecil yang berbeda dalam bahan kemasan yang berbeda. Gambar di bawah ini menunjukkan hasil mobilitas yang diperoleh dengan memanaskan pada output gelombang mikro 500 W selama 5 menit. Dapat dilihat secara jelas bahwa keempat zat bermigrasi dalam PS dan PMMA. Laju ini lebih besar daripada mobilitas pada PE, PP dan PET.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Hal ini karena rantai utama PE, PP dan PET memiliki simetri yang baik dan struktur yang relatif teratur, yang merupakan polimer kristalin; sedangkan PS memiliki cincin benzena dengan penghalang sterik yang lebih besar pada rantai sampingnya, dan PMMA memiliki gugus ester kutub yang lebih besar pada rantai sampingnya. Ini termasuk dalam polimer amorf secara keseluruhan, tetapi daerah kristal dan amorf ada dalam polimer pada saat yang bersamaan. Senyawa molekul kecil juga didistribusikan di daerah kristal dan amorf material ketika mereka terbentuk. Di bawah aksi gelombang mikro, polimer adalah Segmen rantai dari daerah amorf kristal bergetar secara acak di bawah aksi medan elektromagnetik bolak-balik, yang mendorong migrasi senyawa molekul kecil dari polimer.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Juga dapat ditemukan bahwa tingkat migrasi antioksidan 168 dan <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/longchangchemical.com\/id\/product\/light-stabilizer-770-tinuvin-770-cas-52829-07-9\/\" target=\"_blank\"><span class=\"has-inline-color has-pale-cyan-blue-color\">penstabil cahaya 770<\/span><\/a><\/strong> dalam semua plastik lebih rendah daripada dua molekul kecil lainnya, dan tingkat migrasi HALS 770 dalam PE dan PP yang berlaku hanya sekitar 10%.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"652\" height=\"455\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/1-2.png\" alt=\"\" class=\"wp-image-3333\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/1-2.png 652w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/1-2-300x209.png 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/1-2-600x419.png 600w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Di bawah waktu pemanasan 5 menit, kurva mobilitas daya keluaran gelombang mikro yang berbeda untuk keempat bahan ditunjukkan pada gambar berikut. Diagram ABCD menunjukkan bahwa BHT, antioksidan 168, HALS 770 dan DBP berada dalam 5 bahan dengan daya gelombang mikro yang berbeda. Kurva migrasi. Jelas, dengan meningkatnya daya keluaran Weibo, mobilitas berbagai bahan dan daya keluaran pada dasarnya linier.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Hal ini karena pada waktu pemanasan yang sama, daya output gelombang mikro kuat, molekul kecil bergerak lebih hebat di dalam polimer, yang juga mempercepat pergerakan segmen polimer di wilayah amorf, sehingga mempercepat migrasi molekul kecil di dalam plastik. Demikian pula, berapa pun daya gelombang mikro, mobilitas keempat bahan konsisten dengan kesimpulan tahap sebelumnya, yang mengindikasikan bahwa tidak ada bentuk interaksi lain di antara bahan kecuali gerakan termal.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"472\" height=\"755\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/2-1-1-edited.png\" alt=\"\" class=\"wp-image-3335\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/2-1-1-edited.png 472w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/2-1-1-edited-188x300.png 188w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"476\" height=\"762\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/2-2-edited.png\" alt=\"\" class=\"wp-image-3337\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/2-2-edited.png 476w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/2-2-edited-187x300.png 187w\" sizes=\"(max-width: 476px) 100vw, 476px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Terakhir, para peneliti mempelajari pengaruh waktu kerja gelombang mikro pada migrasi zat kimia dalam kemasan plastik. Daya output gelombang mikro adalah 300 W. Hasilnya ditunjukkan pada gambar di bawah ini. Dapat dilihat dari gambar bahwa di bawah daya keluaran gelombang mikro yang sama, ketika keempat zat bermigrasi di setiap bahan, mobilitasnya kecil di awal, dan meningkat secara linier dan berakselerasi setelah 2 menit, dan mencapai nilai maksimum dalam waktu sekitar 6 hingga 7 menit. Setelah mencapai kesetimbangan dan pada dasarnya tidak berubah.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Hal ini karena migrasi bahan adalah proses difusi, dan kekuatan pendorong yang terus menerus untuk difusi adalah perbedaan potensial kimiawi antara bahan kemasan dan makanan. Ketika potensi kimiawi antara kedua fase sama, kesetimbangan tercapai. Untuk antioksidan 168 dan HALS 770, konsentrasi kesetimbangan akhir eksudasi hanya 25% bahkan dalam PS, artinya, kandungan aditif yang tersisa adalah 0,75%, yang masih melebihi penggunaan aditif dalam banyak kasus.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Oleh karena itu, bahkan dalam kondisi gelombang mikro jangka panjang yang kuat, kedua senyawa molekul kecil ini masih dapat mempertahankan konsentrasi yang efektif, yang kondusif untuk penggunaan perangkat plastik secara terus menerus dalam kondisi ekstrem.<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"560\" height=\"431\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/3-2.png\" alt=\"\" class=\"wp-image-3338\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/3-2.png 560w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/10\/3-2-300x231.png 300w\" sizes=\"(max-width: 560px) 100vw, 560px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Secara keseluruhan, percobaan ini menyelidiki empat jenis migrasi yang mengandung gugus fungsi dan polaritas yang berbeda dari BHT, antioksidan 168, penstabil cahaya HALS 770 dan DBP di bawah kondisi daya pemanasan gelombang mikro yang berbeda pada PE, PP, PS, PMMA dan PET. Jenis mobilitas di dalam film plastik.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Hasil penelitian menunjukkan bahwa mobilitas keempat zat pada dasarnya linier dengan daya keluaran gelombang mikro, dan mobilitas migran dalam bahan amorf lebih besar daripada dalam bahan kristal dalam kondisi yang sama, dan ketika migran dan rantai molekul polimer Ketika ikatan hidrogen terbentuk, resistensi migrasi dapat ditingkatkan; di bawah daya keluaran gelombang mikro yang sama, ketika keempat zat bermigrasi di setiap bahan, mobilitasnya kecil di awal, dan mulai meningkat secara linier dan berakselerasi setelah 2 menit, pada 6 menit ~ 7 menit Kiri dan kanan mencapai nilai maksimum, dan kemudian mencapai keseimbangan dan pada dasarnya tidak berubah.<\/strong><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Di antara keempat bahan tersebut, antioksidan 168 dan <a href=\"https:\/\/longchangchemical.com\/id\/product\/light-stabilizer-770-tinuvin-770-cas-52829-07-9\/\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"has-inline-color has-pale-cyan-blue-color\">penstabil cahaya 770<\/span><\/a> memiliki tingkat migrasi yang lebih kecil, yang bermanfaat untuk penambahan dan penggunaan.<\/strong><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Hubungi Kami Sekarang!<\/strong><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Kami menerima layanan yang disesuaikan, kami biasanya akan menghubungi Anda dalam waktu 24 jam. Anda juga bisa mengirim email kepada saya <strong>info@longchangchemical.com<\/strong> selama jam kerja (8:30 pagi hingga 6:00 sore UTC+8 Senin-Sabtu) atau gunakan obrolan langsung situs web untuk mendapatkan balasan secepatnya.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Artikel ini ditulis oleh Departemen Litbang Kimia Longchang. Jika Anda perlu menyalin dan mencetak ulang, harap sebutkan sumbernya<\/h4>\n\n\n<!-- lc-commercial-start -->\n<h2>How buyers usually evaluate antioxidants and stabilizers<\/h2>\n<p>Most stabilizer decisions work best when they are treated as package decisions rather than single-product decisions. Technical buyers usually get the strongest answer by reviewing long-term heat aging, process stability, weather exposure, and color sensitivity together.<\/p>\n<ul>\n<li><strong>Separate processing protection from long-term stability:<\/strong> the best additive for melt history is not always the same one that gives the best service-life retention.<\/li>\n<li><strong>Use synergy deliberately:<\/strong> many polymer and coating systems perform best when primary and secondary stabilizers are paired intentionally.<\/li>\n<li><strong>Review color and clarity requirements:<\/strong> clear, pale, food-contact, or white systems often need a tighter package than dark industrial products.<\/li>\n<li><strong>Check the real aging condition:<\/strong> heat, UV, humidity, and outdoor exposure can each change which stabilizer route is commercially strongest.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/id\/product\/chlumiao-168-cas-31570-04-4\/\">CHLUMIAO 168<\/a>:<\/strong> A practical process-stability reference when hydroperoxide control matters.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/id\/product\/chlumiao-1010-cas-6683-19-8\/\">CHLUMIAO 1010<\/a>:<\/strong> A widely used primary antioxidant benchmark for long-term thermal stability.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/id\/product\/light-stabilizer-123-tinuvin-123-cas-129757-67-1\/\">CHLUMILS UV-123<\/a>:<\/strong> A strong HALS reference for weatherability-focused screens in coatings and polymers.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/id\/product\/uv-5151-cas-104810-48-2\/\">CHLUMILS UV-5151<\/a>:<\/strong> A practical stabilizer-package reference when broader light-aging protection is needed.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why are stabilizer packages often stronger than a single additive?<\/strong><br \/>Because different products can protect different parts of the degradation pathway, so the package often covers more risk than one grade alone.<\/p>\n<p><strong>Does adding more antioxidant or UV stabilizer always improve performance?<\/strong><br \/>Not necessarily. Over-dosing can increase cost and sometimes create side effects, so most systems perform best inside a tested dosage window.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>Plastic is one of the most frequently encountered materials in daily life. It is deeply loved by consumers for its advantages of simple shape, low price, resistance to solvent, corrosion<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3332","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The migration effect of microwave on plastic additives - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Plastic is one of the most frequently encountered materials in daily life. 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