{"id":4092,"date":"2026-01-11T09:00:00","date_gmt":"2026-01-11T09:00:00","guid":{"rendered":"https:\/\/www.desopipe.com\/?p=4092"},"modified":"2026-02-06T03:44:28","modified_gmt":"2026-02-06T03:44:28","slug":"ppr-pipe-low-quality-recycled-plastic-signs","status":"publish","type":"post","link":"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/","title":{"rendered":"Ph\u00e1t hi\u1ec7n v\u1eadt li\u1ec7u gi\u1ea3 m\u1ea1o: 5 d\u1ea5u hi\u1ec7u c\u1ee7a nh\u1ef1a t\u00e1i ch\u1ebf ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p trong h\u1ec7 th\u1ed1ng PPR"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Chuy\u1ec3n \u0111\u1ed5i m\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#1_Surface_Defects_and_Texture_Problems\" >1. C\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t v\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 k\u1ebft c\u1ea5u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#2_Color_Inconsistency_and_Lack_of_Luster\" >2. M\u00e0u s\u1eafc kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t v\u00e0 thi\u1ebfu \u0111\u1ed9 b\u00f3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#3_Pungent_Odor_During_Heating\" >3. M\u00f9i h\u0103ng n\u1ed3ng trong qu\u00e1 tr\u00ecnh \u0111un n\u00f3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#4_Unstable_Melting_and_Weak_Welds\" >4. N\u00f3ng ch\u1ea3y kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 m\u1ed1i h\u00e0n y\u1ebfu<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#5_Brittleness_and_Impact_Sensitivity\" >5. \u0110\u1ed9 gi\u00f2n v\u00e0 \u0111\u1ed9 nh\u1ea1y c\u1ea3m v\u1edbi va \u0111\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#Long-Term_Health_and_Safety_Risks\" >R\u1ee7i ro v\u1ec1 s\u1ee9c kh\u1ecfe v\u00e0 an to\u00e0n d\u00e0i h\u1ea1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#How_DESO_Ensures_Material_Integrity\" >DESO \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u1eadt li\u1ec7u nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Nh\u1ef1a t\u00e1i ch\u1ebf ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p trong h\u1ec7 th\u1ed1ng \u1ed1ng PPR c\u00f3 n\u0103m d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o: khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t, m\u00e0u s\u1eafc kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t, m\u00f9i h\u0103ng kh\u00f3 ch\u1ecbu trong qu\u00e1 tr\u00ecnh h\u00e0n, h\u00e0nh vi n\u00f3ng ch\u1ea3y kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 gi\u00f2n. Ph\u00e1t hi\u1ec7n nh\u1eefng d\u1ea5u hi\u1ec7u n\u00e0y tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t s\u1ebd ng\u0103n ng\u1eeba h\u1ecfng m\u1ed1i n\u1ed1i, n\u1ee9t th\u00e0nh \u1ed1ng v\u00e0 \u00f4 nhi\u1ec5m, nh\u1eefng v\u1ea5n \u0111\u1ec1 m\u00e0 chi ph\u00ed s\u1eeda ch\u1eefa s\u1ebd cao h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c ph\u00f2ng ng\u1eeba.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Surface_Defects_and_Texture_Problems\"><\/span><strong>1. C\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t v\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 k\u1ebft c\u1ea5u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Polypropylene nguy\u00ean ch\u1ea5t \u0111\u1ed3ng tr\u00f9ng h\u1ee3p ng\u1eabu nhi\u00ean t\u1ea1o ra c\u00e1c \u1ed1ng c\u00f3 th\u00e0nh nh\u1eb5n, \u0111\u1ed3ng nh\u1ea5t c\u1ea3 b\u00ean trong v\u00e0 b\u00ean ngo\u00e0i. H\u00e0m l\u01b0\u1ee3ng v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf th\u1ec3 hi\u1ec7n qua c\u00e1c khuy\u1ebft t\u1eadt c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y ki\u1ec3m tra xem c\u00f3 v\u1ebft l\u1ed3i l\u00f5m, b\u1ecdt kh\u00ed ho\u1eb7c c\u00e1c m\u1ea3ng s\u1ea7n s\u00f9i tr\u00ean b\u1ec1 m\u1eb7t b\u00ean trong v\u00e0 b\u00ean ngo\u00e0i hay kh\u00f4ng. Nh\u1eefng b\u1ea5t th\u01b0\u1eddng n\u00e0y xu\u1ea5t ph\u00e1t t\u1eeb nguy\u00ean li\u1ec7u \u0111\u1ea7u v\u00e0o kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t ho\u1eb7c c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m c\u00f2n s\u00f3t l\u1ea1i trong qu\u00e1 tr\u00ecnh \u00e9p \u0111\u00f9n. M\u1ed9t \u1ed1ng \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng c\u00f3 khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t n\u00e0o c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y b\u1eb1ng m\u1eaft th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu c\u00f3 th\u1ec3, h\u00e3y d\u00f9ng tay vu\u1ed1t d\u1ecdc theo th\u00e0nh b\u00ean trong. B\u1ec1 m\u1eb7t nh\u00e1m t\u1ea1o ra d\u00f2ng ch\u1ea3y r\u1ed1i, t\u00edch t\u1ee5 c\u1eb7n b\u1ea9n v\u00e0 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t th\u1ee7y l\u1ef1c theo th\u1eddi gian.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Color_Inconsistency_and_Lack_of_Luster\"><\/span><strong>2. M\u00e0u s\u1eafc kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t v\u00e0 thi\u1ebfu \u0111\u1ed9 b\u00f3ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eadt li\u1ec7u \u1ed1ng PPR nguy\u00ean ch\u1ea5t c\u00f3 m\u00e0u s\u1eafc \u0111\u1ed3ng nh\u1ea5t. B\u1ec1 m\u1eb7t c\u00f3 \u0111\u1ed9 b\u00f3ng \u0111\u1ec1u, kh\u00f4ng c\u00f3 v\u1ec7t ho\u1eb7c m\u1ea3ng x\u1ec9n m\u00e0u.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"727\" height=\"439\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials.webp\" alt=\"\" class=\"wp-image-4094\" style=\"width:350px\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials.webp 727w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-500x302.webp 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-300x181.webp 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-18x12.webp 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-124x75.webp 124w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-480x290.webp 480w\" sizes=\"auto, (max-width:767px) 480px, 727px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Nh\u1ef1a PP t\u00e1i ch\u1ebf th\u01b0\u1eddng c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u1ec7t m\u00e0u t\u1eeb c\u00e1c l\u00f4 nguy\u00ean li\u1ec7u tr\u1ed9n l\u1eabn.<\/li>\n\n\n\n<li>C\u00e1c \u0111\u1ed1m \u0111en do ch\u1ea5t b\u1ea9n c\u00f2n s\u00f3t l\u1ea1i<\/li>\n\n\n\n<li>\u0110\u1ed9 m\u1edd \u0111\u1ee5c kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u d\u1ecdc theo chi\u1ec1u d\u00e0i \u1ed1ng.<\/li>\n\n\n\n<li>C\u00f3 v\u1ebb ngo\u00e0i m\u1edd ho\u1eb7c b\u1ea1c m\u00e0u so v\u1edbi v\u1eadt li\u1ec7u nguy\u00ean ch\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng d\u1ea5u hi\u1ec7u n\u00e0y cho th\u1ea5y \u0111\u00f3 l\u00e0 s\u1ef1 pha tr\u1ed9n c\u00e1c d\u00f2ng ch\u1ea5t th\u1ea3i ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t nh\u1ef1a nguy\u00ean sinh \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Pungent_Odor_During_Heating\"><\/span><strong>3. M\u00f9i h\u0103ng n\u1ed3ng trong qu\u00e1 tr\u00ecnh \u0111un n\u00f3ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi PPR \u0111\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ec3 h\u00e0n n\u00f3ng ch\u1ea3y, v\u1eadt li\u1ec7u nguy\u00ean ch\u1ea5t t\u1ea1o ra r\u1ea5t \u00edt m\u00f9i. Trong khi \u0111\u00f3, v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf l\u1ea1i t\u1ecfa ra m\u00f9i kh\u00f3 ch\u1ecbu \u0111\u1eb7c tr\u01b0ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f9i \u0111\u00f3 xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c chu\u1ed7i polymer b\u1ecb ph\u00e2n h\u1ee7y, c\u00e1c ch\u1ea5t ph\u1ee5 gia x\u1eed l\u00fd c\u00f2n s\u00f3t l\u1ea1i v\u00e0 c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m t\u1eeb d\u00f2ng ch\u1ea5t th\u1ea3i ban \u0111\u1ea7u. N\u1ebfu \u0111\u01b0\u1eddng \u1ed1ng c\u00f3 m\u00f9i b\u1ea5t th\u01b0\u1eddng trong qu\u00e1 tr\u00ecnh h\u00e0n, ch\u1ec9 s\u1ed1 ch\u1ea3y n\u00f3ng ch\u1ea3y kh\u00f4ng nh\u1ea5t qu\u00e1n v\u00e0 c\u00e1c m\u1ed1i h\u00e0n s\u1ebd kh\u00f4ng h\u00ecnh th\u00e0nh \u0111\u00fang c\u00e1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m t\u1ea1o m\u00f9i c\u0169ng c\u00f3 th\u1ec3 x\u00e2m nh\u1eadp v\u00e0o n\u01b0\u1edbc u\u1ed1ng, mang theo thu\u1ed1c tr\u1eeb s\u00e2u, kim lo\u1ea1i n\u1eb7ng ho\u1eb7c h\u00f3a ch\u1ea5t c\u00f4ng nghi\u1ec7p t\u1eeb nguy\u00ean li\u1ec7u t\u00e1i ch\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Unstable_Melting_and_Weak_Welds\"><\/span><strong>4. N\u00f3ng ch\u1ea3y kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 m\u1ed1i h\u00e0n y\u1ebfu<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea5u tr\u00fac \u0111\u1ed3ng tr\u00f9ng h\u1ee3p ng\u1eabu nhi\u00ean c\u1ee7a PPR nguy\u00ean ch\u1ea5t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u00e0n n\u00f3ng ch\u1ea3y \u1ed5n \u0111\u1ecbnh. V\u1eadt li\u1ec7u t\u00e1i ch\u1ebf kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c h\u1ed7n h\u1ee3p t\u00e1i ch\u1ebf c\u00f3 ch\u1ec9 s\u1ed1 ch\u1ea3y n\u00f3ng ch\u1ea3y (MFI) kh\u00f4ng nh\u1ea5t qu\u00e1n v\u00ec c\u00e1c lo\u1ea1i nh\u1ef1a v\u00e0 t\u1ea1p ch\u1ea5t kh\u00e1c nhau tr\u1ed9n l\u1eabn m\u1ed9t c\u00e1ch kh\u00f3 d\u1ef1 \u0111o\u00e1n. Trong qu\u00e1 tr\u00ecnh nung ch\u1ea3y, v\u1eadt li\u1ec7u tan ch\u1ea3y kh\u00f4ng \u0111\u1ec1u, m\u1ed9t s\u1ed1 khu v\u1ef1c ch\u1ea3y qu\u00e1 nhanh trong khi nh\u1eefng khu v\u1ef1c kh\u00e1c l\u1ea1i kh\u00f3 li\u00ean k\u1ebft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ea1p ch\u1ea5t nh\u01b0 h\u1ea1t kim lo\u1ea1i ho\u1eb7c s\u1ee3i \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111i\u1ec3m t\u1eadp trung \u1ee9ng su\u1ea5t trong v\u00f9ng h\u00e0n. Thay v\u00ec m\u1ed9t li\u00ean k\u1ebft ph\u00e2n t\u1eed li\u1ec1n m\u1ea1ch, m\u1ed1i h\u00e0n ch\u1ee9a c\u00e1c \u0111i\u1ec3m y\u1ebfu d\u1ec5 b\u1ecb h\u1ecfng d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a chu k\u1ef3 \u00e1p su\u1ea5t. <a href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/common-ppr-pipe-problems-and-effective-solutions\/\" target=\"_blank\" rel=\"noreferrer noopener\">S\u1ef1 c\u1ed1 \u1ed1ng PPR<\/a> Th\u01b0\u1eddng th\u00ec nguy\u00ean nh\u00e2n b\u1eaft ngu\u1ed3n t\u1eeb c\u00e1c m\u1ed1i h\u00e0n b\u1ecb l\u1ed7i ch\u1ee9 kh\u00f4ng ph\u1ea3i t\u1eeb ch\u00ednh th\u00e0nh \u1ed1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Brittleness_and_Impact_Sensitivity\"><\/span><strong>5. \u0110\u1ed9 gi\u00f2n v\u00e0 \u0111\u1ed9 nh\u1ea1y c\u1ea3m v\u1edbi va \u0111\u1eadp<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ed0ng PPR nguy\u00ean ch\u1ea5t duy tr\u00ec \u0111\u1ed9 d\u1ebbo v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp trong su\u1ed1t th\u1eddi gian s\u1eed d\u1ee5ng. Trong khi \u0111\u00f3, \u1ed1ng c\u00f3 ch\u1ee9a v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf n\u00ean d\u1ec5 b\u1ecb gi\u00f2n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp c\u1ee7a h\u1ed7n h\u1ee3p t\u00e1i ch\u1ebf gi\u1ea3m t\u1edbi 351 TP9T so v\u1edbi v\u1eadt li\u1ec7u nguy\u00ean sinh. \u1ed0ng c\u00f3 th\u1ec3 b\u1ecb n\u1ee9t trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n, l\u1eafp \u0111\u1eb7t ho\u1eb7c do s\u1ef1 d\u1ecbch chuy\u1ec3n nh\u1ecf c\u1ee7a \u0111\u1ea5t sau khi ch\u00f4n l\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 kh\u00e1ng h\u00f3a ch\u1ea5t c\u0169ng b\u1ecb suy gi\u1ea3m. V\u1eadt li\u1ec7u t\u00e1i ch\u1ebf ph\u00e2n h\u1ee7y nhanh h\u01a1n trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, d\u1eabn \u0111\u1ebfn bi\u1ebfn d\u1ea1ng ho\u1eb7c v\u1ee1 nhanh ch\u00f3ng trong \u0111i\u1ec1u ki\u1ec7n m\u00e0 nh\u1ef1a PPR nguy\u00ean ch\u1ea5t c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng \u0111\u01b0\u1ee3c trong nhi\u1ec1u th\u1eadp k\u1ef7.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Long-Term_Health_and_Safety_Risks\"><\/span><strong>R\u1ee7i ro v\u1ec1 s\u1ee9c kh\u1ecfe v\u00e0 an to\u00e0n d\u00e0i h\u1ea1n<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c s\u1eed d\u1ee5ng nh\u1ef1a t\u00e1i ch\u1ebf trong c\u00e1c h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t vi ph\u1ea1m c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf nh\u01b0 ISO 4427-2 v\u00ec v\u1eadt li\u1ec7u n\u00e0y kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n ho\u1eb7c \u0111\u1ed9 tinh khi\u1ebft nh\u01b0 nh\u1ef1a nguy\u00ean sinh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ch\u1ea5t \u0111\u1ed9c h\u1ea1i t\u1eeb d\u00f2ng ch\u1ea5t th\u1ea3i ban \u0111\u1ea7u (thu\u1ed1c tr\u1eeb s\u00e2u, kim lo\u1ea1i n\u1eb7ng, dung m\u00f4i c\u00f4ng nghi\u1ec7p) di chuy\u1ec3n v\u00e0o <a href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/why-ppr-is-the-superior-food-grade-pipe-choice\/\" target=\"_blank\" rel=\"noreferrer noopener\">n\u01b0\u1edbc u\u1ed1ng <\/a>Khi \u0111\u01b0\u1eddng \u1ed1ng xu\u1ed1ng c\u1ea5p. \u0110\u01b0\u1eddng \u1ed1ng c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t ban \u0111\u1ea7u, nh\u01b0ng ch\u1ea5t b\u1ea9n s\u1ebd t\u00edch t\u1ee5 theo th\u1eddi gian s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng c\u1ea5p n\u01b0\u1edbc sinh ho\u1ea1t, r\u1ee7i ro v\u1ec1 s\u1ee9c kh\u1ecfe l\u1edbn h\u01a1n b\u1ea5t k\u1ef3 kho\u1ea3n ti\u1ebft ki\u1ec7m chi ph\u00ed ban \u0111\u1ea7u n\u00e0o.<\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  \n  <title>S\u1ea3n ph\u1ea9m n\u1ed5i b\u1eadt c\u1ee7a Hero<\/title>\n  <style>\n    .hero-card {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      background: #f7f8fa;\n      border-radius: 16px;\n      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n      padding: 24px;\n      max-width: 900px;\n      margin: 40px auto;\n      font-family: Arial, sans-serif;\n      text-decoration: none;\n      color: inherit;\n font-family: 'Poppins';\n    }\n\n    .hero-image {\n      width: 220px;\n      height: auto;\n      border-radius: 12px;\n      object-fit: cover;\n      flex-shrink: 0;\n    }\n\n    .hero-content {\n      padding-left: 24px;\n      flex: 1;\n      min-width: 260px;\n    }\n\n    .hero-title {\n      font-size: 1.6rem;\n      font-weight: bold;\n      margin-bottom: 12px;\n      color: #222;\n      font-family: 'Poppins',\n    }\n\n    .hero-description {\n      font-size: 1rem;\n      color: #555;\n      margin-bottom: 18px;\n    }\n\n    .hero-link {\n      display: inline-block;\n      padding: 10px 20px;\n      background-color: #0066cc;\n      color: #fff;\n      text-decoration: none;\n      border-radius: 8px;\n      font-weight: bold;\n      transition: background 0.2s ease-in-out;\n    }\n\n    .hero-link:hover {\n      background-color: #004c99;\n    }\n\n    @media (max-width: 640px) {\n      .hero-card {\n        flex-direction: column;\n        text-align: center;\n      }\n\n      .hero-content {\n        padding-left: 0;\n        padding-top: 20px;\n      }\n\n      .hero-image {\n        width: 100%;\n        max-width: 280px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<a class=\"hero-card\" href=\"https:\/\/www.desopipe.com\/vi\/product\/standard-ppr-pipe\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/01\/4.webp\" alt=\"b\u00fat m\u00e0u kaywin\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\u1ed0ng PPR ti\u00eau chu\u1ea9n<\/div>\n    <div class=\"hero-description\">\u1ed0ng PPR ti\u00eau chu\u1ea9n cung c\u1ea5p gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady cho h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng d\u00e2n d\u1ee5ng, th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p.<\/div>\n    <span class=\"hero-link\">Xem s\u1ea3n ph\u1ea9m<\/span>\n  <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_DESO_Ensures_Material_Integrity\"><\/span><strong>DESO \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u1eadt li\u1ec7u nh\u01b0 th\u1ebf n\u00e0o?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ki\u00ean quy\u1ebft s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u nguy\u00ean ch\u1ea5t th\u01b0\u1eddng \u01b0u ti\u00ean tu\u1ed5i th\u1ecd v\u00e0 \u0111\u1ed9 an to\u00e0n c\u1ee7a h\u1ec7 th\u1ed1ng h\u01a1n l\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed ng\u1eafn h\u1ea1n. DESO ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean t\u1eafc \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i \u1ed1ng PPR c\u1ee7a DESO \u0111\u1ec1u s\u1eed d\u1ee5ng <a href=\"https:\/\/www.desopipe.com\/vi\/blog\/manufacturer\/buyers-guide-to-high-quality-ppr-pipe-material\/\" target=\"_blank\" rel=\"noreferrer noopener\">Nh\u1ef1a nguy\u00ean ch\u1ea5t 100%<\/a> T\u1eeb Borealis v\u00e0 Hyosung. Kh\u00f4ng ch\u1ee9a v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf, kh\u00f4ng pha tr\u1ed9n nguy\u00ean li\u1ec7u, kh\u00f4ng c\u00f3 nguy c\u01a1 \u00f4 nhi\u1ec5m.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1ec9 s\u1ed1 ch\u1ea3y n\u00f3ng ch\u1ea3y \u1ed5n \u0111\u1ecbnh \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady <a href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/\" target=\"_blank\" rel=\"noreferrer noopener\">h\u00e0n n\u00f3ng ch\u1ea3y<\/a><\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu h\u00f3a ch\u1ea5t v\u00e0 nhi\u1ec7t ho\u00e0n to\u00e0n trong su\u1ed1t th\u1eddi gian s\u1eed d\u1ee5ng h\u01a1n 50 n\u0103m.<\/li>\n\n\n\n<li>Tu\u00e2n th\u1ee7 <a href=\"https:\/\/www.desopipe.com\/vi\/certificate\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ti\u00eau chu\u1ea9n ISO15874<\/a> v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n qu\u1ed1c t\u1ebf<\/li>\n\n\n\n<li>Kh\u00f4ng x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng ph\u00e2n h\u1ee7y ph\u00e2n t\u1eed ho\u1eb7c g\u00e3y gi\u00f2n theo th\u1eddi gian.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ecfi nh\u00e0 cung c\u1ea5p v\u1ec1 cam k\u1ebft s\u1eed d\u1ee5ng nguy\u00ean li\u1ec7u nguy\u00ean ch\u1ea5t l\u00e0 c\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 ph\u00e2n bi\u1ec7t c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng v\u1edbi nh\u1eefng nh\u00e0 s\u1ea3n xu\u1ea5t pha tr\u1ed9n v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf \u0111\u1ec3 gi\u1ea3m chi ph\u00ed.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.desopipe.com\/vi\/contact\/\" style=\"background-color:#0588a7\" target=\"_blank\" rel=\"noreferrer noopener\">Nh\u1eadn b\u00e1o gi\u00e1 mi\u1ec5n ph\u00ed<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Low-quality recycled plastic in PPR Pipe systems shows up through five warning signs: surface defects, color inconsistency, pungent odor during welding, unstable melting behavior, and brittleness.<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":4095,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[56],"tags":[],"class_list":["post-4092","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ppr-pipe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PPR Pipe: 5 Signs of Low-Quality Recycled Plastic | DESO Group<\/title>\n<meta name=\"description\" content=\"Learn how to spot counterfeit PPR materials before installation. 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