{"id":170,"date":"2025-06-20T08:55:18","date_gmt":"2025-06-20T07:55:18","guid":{"rendered":"https:\/\/polyisofactory.com\/?p=170"},"modified":"2025-06-20T08:56:01","modified_gmt":"2025-06-20T07:56:01","slug":"%e8%81%9a%e7%95%b0%e6%b0%b0%e8%84%b2%e9%85%b8%e9%85%af%e6%98%af%e5%90%a6%e6%9c%83%e9%9a%a8%e8%91%97%e6%99%82%e9%96%93%e7%9a%84%e6%8e%a8%e7%a7%bb%e8%80%8c%e5%a4%b1%e5%8e%bb%e5%83%b9%e5%80%bc%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/polyisofactory.com\/zh\/knowledge\/does-polyiso-lose-r-value-over-time-the-science-explained\/","title":{"rendered":"\u805a\u7570\u6c30\u8132\u9178\u916f\u6703\u96a8\u8457\u6642\u9593\u800c\u964d\u4f4e R \u503c\u55ce\uff1f\u79d1\u5b78\u89e3\u91cb"},"content":{"rendered":"

\u805a\u7570\u6c30\u8132\u9178\u916f\uff08\u805a\u77fd\u6c27\u70f7\uff09\u9694\u71b1\u6750\u8cea\u56e0\u5176\u9ad8\u9694\u71b1\u6027\u800c\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u5c4b\u9802\u3001\u7246\u58c1\u548c\u5730\u4e0b\u5ba4\u3002 \u71b1\u6027\u80fd<\/strong> (\u901a\u5e38\u70ba\u6bcf\u82f1\u540b R-6.0-R-6.5\uff09\u3002\u4f46\u6709\u500b\u554f\u984c\u4e00\u76f4\u63ee\u4e4b\u4e0d\u53bb\uff1a \u5b83\u7684 R \u503c\u6703\u96a8\u8457\u6642\u9593\u964d\u4f4e\u55ce\uff1f<\/em> \u7b54\u6848\u6d89\u53ca\u5316\u5b78\u3001\u6eab\u5ea6\u548c\u5b89\u88dd\u65b9\u6cd5\u3002<\/p>\n\n\n\n

\"Polyiso<\/figure><\/div>\n\n\n\n

\u7c21\u77ed\u7b54\u6848<\/strong><\/p>\n\n\n\n

\u805a\u919a\u781c \u4e0d\u7d93\u6b77\u9577\u671f\u7684\u986f\u8457 R \u503c\u640d\u5931<\/strong> \u5728\u6b63\u5e38\u60c5\u6cc1\u4e0b\u3002\u4f46\u662f\uff0c\u6709\u5169\u500b\u56e0\u7d20\u6703\u5c0e\u81f4 \u521d\u59cb\uff0c\u6700\u5c0f\u6e1b\u91cf<\/em>:<\/p>\n\n\n\n

\u71b1\u6f02\u79fb<\/strong>:\u7576\u767c\u6ce1\u5291\uff08\u88fd\u9020\u904e\u7a0b\u4e2d\u6eef\u7559\u5728\u7d30\u80de\u4e2d\u7684\u6c23\u9ad4\uff09\u64f4\u6563\u51fa\u53bb\u6642\uff0cR \u503c\u6703\u8f15\u5fae\u4e0b\u964d\u3002\u9019\u7a2e\u60c5\u6cc1\u6703\u5728 1-2 \u5e74\u5f8c\u7a69\u5b9a\u4e0b\u4f86\u3002<\/p>\n\n\n\n

\u6eab\u5ea6\u4f9d\u8cf4\u6027<\/strong>:Polyiso \u7684 R \u503c \u66ab\u6642\u6e1b\u5c11<\/em> \u7576\u901a\u904e\u6750\u6599\u7684\u5e73\u5747\u6eab\u5ea6\u4f4e\u65bc 40\u00b0F (4\u00b0C) .<\/p>\n\n\n\n

\u5f71\u97ff\u805a\u916f\u7e96\u7dad R \u503c\u7684\u95dc\u9375\u56e0\u7d20<\/h2>\n\n\n\n

1.\u6eab\u5ea6\u654f\u611f\u5ea6<\/h3>\n\n\n\n
    \n
  • \u6eab\u5ea6\u4f4e\u65bc 40\u00b0F (4\u00b0C) \u6642\uff0c\u805a\u7d22\u7684 R \u503c\u6703\u4e0b\u964d\u3002\u8209\u4f8b\u4f86\u8aaa\uff1a\n
      \n
    • \u5728 25\u00b0F (-4\u00b0C) \u7684\u6eab\u5ea6\u4e0b\uff0cR-6.0 \u805a\u7570\u77fd\u81a0\u7684\u8868\u73fe\u53ef\u80fd\u66f4\u63a5\u8fd1 R-5.5\u3002<\/li>\n\n\n\n
    • \u5728 0\u00b0F (-18\u00b0C) \u6642\uff0c\u53ef\u80fd\u964d\u81f3 R-5.0\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • \u5728 40\u00b0F \u4ee5\u4e0a\uff0c\u5b83\u7684 R \u503c\u63a5\u8fd1\u6a19\u793a\u503c\u3002<\/li>\n\n\n\n
    • \u70ba\u4ec0\u9ebc\uff1f<\/em> \u7d55\u7de3\u6750\u6599\u7684\u78b3\u6c2b\u767c\u6ce1\u5291\u6703\u5728\u4f4e\u6eab\u4e0b\u51dd\u7d50\uff0c\u5f9e\u800c\u964d\u4f4e\u5176\u71b1\u963b .<\/li>\n<\/ul>\n\n\n\n

      2.\u908a\u7de3\u5bc6\u5c01\u8207\u6fd5\u6c23\u66b4\u9732<\/h3>\n\n\n\n
        \n
      • \u5207\u908a<\/strong> \u66b4\u9732\u65bc\u6fd5\u6c23\u4e2d\uff08\u4f8b\u5982\uff0c\u6c92\u6709\u9694\u6c7d\u5c64\u7684\u5730\u4e0b\u5ba4\u6a13\u677f\uff09\u6703\u5438\u6c34\uff0c\u5f9e\u800c\u964d\u4f4e R \u503c\u3002\u92c1\u7b94\u9762\u5c64\u53ef\u4ee5\u7de9\u89e3\u9019\u4e00\u554f\u984c\u3002<\/li>\n\n\n\n
      • \u7121\u9762\u805a\u85a9<\/strong> \u5728\u6f6e\u6fd5\u7684\u74b0\u5883\u4e2d\u5bb9\u6613\u53d7\u640d\u3002\u5728\u5730\u9762\u4ee5\u4e0b\u7684\u61c9\u7528\u4e2d\uff0c\u8acb\u52d9\u5fc5\u5bc6\u5c01\u908a\u7de3\u3002<\/li>\n<\/ul>\n\n\n\n

        3.\u8001\u5316 (\u300c\u71b1\u6f02\u79fb\u300d)<\/h3>\n\n\n\n
          \n
        • \u5b89\u88dd\u4e4b\u5f8c\uff0c\u805a\u7570\u6c30\u8132\u9178\u916f\u6703\u96a8\u8457\u767c\u6ce1\u5291\u7684\u9038\u51fa\u800c\u5931\u53bb 2-5% \u7684 R \u503c\uff0c\u4e26\u5728 24 \u500b\u6708\u5167\u7a69\u5b9a\u3002<\/li>\n\n\n\n
        • \u9577\u671f\u7e3e\u6548<\/em>:\u8001\u5316\u5f8c\u7684 R \u503c\u4ecd\u70ba\u6a19\u793a\u503c\u7684 90-95%\uff0c\u8207 XPS \u548c EPS \u76f8\u7576\u3002<\/li>\n<\/ul>\n\n\n\n

          Polyiso \u8207\u5176\u4ed6\u9694\u71b1\u6750\u8cea\u7684\u6bd4\u8f03\uff1aR \u503c\u7684\u7a69\u5b9a\u6027<\/h2>\n\n\n\n

          \u8868\u683c\uff1a\u6bd4\u8f03\u9694\u71b1\u6027\u80fd\u96a8\u6642\u9593\u7684\u8b8a\u5316<\/em><\/p>\n\n\n\n

          \u6750\u8cea<\/th>\u6bcf\u82f1\u540b R \u503c<\/th>\u4f4e\u6eab\u6027\u80fd<\/th>\u8001\u5316\u5f71\u97ff\uff0820 \u5e74\u5f8c\uff09<\/th><\/tr><\/thead>
          \u805a\u919a\u781c<\/strong><\/td>R-6.0-R-6.5<\/td>\u964d\u81f3 40\u00b0F \u4ee5\u4e0b<\/td>~5% \u640d\u5931 (\u7a69\u5b9a)<\/td><\/tr>
          XPS<\/td>R-5.0<\/td>\u7a69\u5b9a<\/td>10-20% \u640d\u5931<\/td><\/tr>
          EPS<\/td>R-3.6-R-4.4<\/td>\u7a69\u5b9a<\/td><5% \u640d\u5931<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
            \n
          • Polyiso \u8207 XPS<\/strong>:XPS \u5728\u5bd2\u51b7\u74b0\u5883\u4e2d\u80fd\u66f4\u597d\u5730\u7dad\u6301 R \u503c\uff0c\u4f46\u9577\u671f\u4f7f\u7528\u6703\u640d\u5931\u66f4\u591a\u3002 \u5168\u7403\u5347\u6eab\u6f5b\u52e2 (GWP) \u6c23\u9ad4<\/em> \u64f4\u6563\u51fa\u53bb .<\/li>\n\n\n\n
          • Polyiso \u5c0d EPS<\/strong>:EPS \u6eab\u5ea6\u7a69\u5b9a\uff0c\u4f46 R \u503c\u8f03\u4f4e\u3002\u5728\u6eab\u6696\u7684\u6c23\u5019\u6216\u5ba4\u5167\u61c9\u7528\u4e2d\uff0cPolyiso \u7684\u8868\u73fe\u512a\u65bc EPS\u3002<\/li>\n<\/ul>\n\n\n\n

            \u6700\u5927\u5316\u805a\u916f\u7e96\u7dad R \u503c\u7684\u6700\u4f73\u505a\u6cd5<\/h2>\n\n\n\n
              \n
            1. \u591a\u5c64\u5b89\u88dd<\/strong>:\n
                \n
              • \u5c64\u8207\u5c64\u4e4b\u9593\u7684\u63a5\u7e2b\u8981\u932f\u958b\uff0c\u4ee5\u6e1b\u5c11\u71b1\u6a4b\u548c\u6f0f\u6c23\u3002\u9019\u4e5f\u63d0\u9ad8\u4e86\u8010\u7528\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
              • \u5728 40\u00b0F \u4ee5\u4e0a\u7684\u61c9\u7528\u4e2d\u4f7f\u7528<\/strong>:\n
                  \n
                • \u6700\u9069\u5408\u7528\u65bc\u5167\u7246\u3001\u5c4b\u9802\u548c\u6709\u689d\u4ef6\u7684\u5730\u4e0b\u5ba4\u3002\u5728\u5bd2\u51b7\u6c23\u5019\u4e0b\uff0c\u907f\u514d\u5728\u5730\u9762\u4ee5\u4e0b\u7684\u5ba4\u5916\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                • \u5bc6\u5c01\u908a\u7de3\u548c\u4f7f\u7528\u9632\u6f6e\u5c64<\/strong>:\n
                    \n
                  • \u7528\u7b94\u5e36\u6216\u5bc6\u5c01\u5291\u4fdd\u8b77\u5207\u53e3\u908a\u7de3\u3002\u5b89\u88dd\u5728\u5730\u4e0b\u5ba4\u7684\u9694\u6c7d\u5c64\u4e0a .<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                  • \u8207\u5c01\u9762\u677f\u642d\u914d<\/strong>:\n
                      \n
                    • \u9ad8\u5bc6\u5ea6 (HD) \u805a\u7570\u6c30\u8132\u9178\u916f\u8986\u84cb\u677f\u53ef\u589e\u52a0\u5c4b\u9802\u7cfb\u7d71\u7684\u6297\u58d3\u5f37\u5ea6\u4e26\u7dad\u6301 R \u503c .<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n

                      \u5224\u6c7a<\/h2>\n\n\n\n

                      \u805a\u916f\u7e96\u7dad\u7684 R \u503c \u6578\u5341\u5e74\u4f86\u4e0d\u6703\u986f\u8457\u964d\u4f4e<\/strong> \u5982\u679c\u5b89\u88dd\u6b63\u78ba\u3002\u5176\u521d\u59cb\u71b1\u6f02\u79fb\u8f03\u5c0f\uff08\u22645%\uff09\uff0c\u4e26\u5728\u5169\u5e74\u5f8c\u8b8a\u5f97\u7a69\u5b9a\u3002\u96d6\u7136\u4f4e\u6eab\u964d\u4f4e\u4e86\u5176 \u77ed\u671f<\/em> \u6548\u7387\uff0c\u5b83\u4ecd\u7136\u662f\u60a8\u7684\u9996\u9078\uff1a<\/p>\n\n\n\n

                        \n
                      • \u5c4b\u9802\u66f4\u63db\uff08\u4f7f\u7528\u9310\u5f62\u6216 HD \u8986\u84cb\u677f\uff09 .<\/li>\n\n\n\n
                      • \u5730\u9762\u4ee5\u4e0a\u7684\u7246\u58c1\u548c\u6709\u689d\u4ef6\u7684\u5730\u4e0b\u5ba4\u3002<\/li>\n\n\n\n
                      • \u5c08\u6848\u512a\u5148\u9806\u5e8f \u53ef\u6301\u7e8c\u6027<\/strong> (polyiso \u4f7f\u7528\u620a\u70f7\uff0c\u4e00\u7a2e\u4f4e GWP \u767c\u6ce1\u5291)\u3002<\/li>\n<\/ul>\n\n\n\n

                        \u5c0d\u65bc\u5bd2\u51b7\u7684\u6c23\u5019 (<40\u00b0F)\uff0c\u8acb\u5c07\u805a\u7570\u77fd\u81a0\u8207\u5176\u4ed6\u9694\u71b1\u6750\u6599 (\u4f8b\u5982 EPS) \u642d\u914d\u4f7f\u7528\uff0c\u6216\u589e\u52a0 10-20% \u7684\u539a\u5ea6\uff0c\u4ee5\u62b5\u92b7\u6eab\u5ea6\u7684\u5f71\u97ff\u3002<\/p>\n\n\n\n

                        \n

                        \ud83d\udca1 \u5c08\u696d\u63d0\u793a<\/strong>:\u7e3d\u662f\u6307\u5b9a \u9ad8\u9f61 R \u503c<\/em> (\u975e\u521d\u59cb\u503c) \u8a08\u7b97\u80fd\u6e90\u898f\u7bc4\u7b26\u5408\u6027\u6642\u3002\u88fd\u9020\u5546\u53ef\u61c9\u8981\u6c42\u63d0\u4f9b\u6b64\u6578\u64da\u3002<\/p>\n<\/blockquote>\n\n\n

                        \t\t\t\n\t\t\t\t\t\t\t\t<\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\u805a\u7570\u6c30\u8132\u9178\u916f\u53ef\u4ee5\u7528\u5728\u5730\u4e0b\u5ba4\u55ce\uff1f<\/strong><\/span><\/div>

                        \u53ef\u4ee5\uff0c\u4f46\u8981\u5bc6\u5c01\u908a\u7de3\u4ee5\u9632\u6fd5\u6c23\uff0c\u4e26\u907f\u514d\u76f4\u63a5\u63a5\u89f8\u7f3a\u4e4f\u9632\u6f6e\u5c64\u7684\u6df7\u51dd\u571f\u677f\u3002<\/p><\/div><\/div>

                        \t\t\t\n\t\t\t\t\t\t\t\t<\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\u71d9\u91d1\u7b94\u662f\u5426\u80fd\u63d0\u9ad8 R \u503c\uff1f<\/strong><\/span><\/div>

                        \u4e0d\u662f\uff0c\u4f46\u5b83\u53ef\u4f5c\u70ba\u8f3b\u5c04\u5c4f\u969c\u548c\u84b8\u6c7d\u963b\u9694\u5291\uff0c\u9632\u6b62\u6fd5\u6c23\u5f15\u8d77\u7684\u964d\u89e3\u3002<\/p><\/div><\/div>

                        \t\t\t\n\t\t\t\t\t\t\t\t<\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\u805a\u916f\u7e96\u7dad\u7684\u58fd\u547d\u6709\u591a\u9577\uff1f<\/strong><\/span><\/div>

                        \u5728\u907f\u514d\u7d2b\u5916\u7dda\u66dd\u66ec\u548c\u6fd5\u6c23\u6ef2\u5165\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4f7f\u7528 50 \u5e74\u4ee5\u4e0a\u3002<\/p><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

                        Polyisocyanurate (polyiso) insulation is widely used in roofs, walls, and basements for its high thermal performance (typically R-6.0\u2013R-6.5 per inch). 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