{"id":4968,"date":"2022-01-05T14:53:55","date_gmt":"2022-01-05T14:53:55","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4968"},"modified":"2026-04-28T10:41:54","modified_gmt":"2026-04-28T10:41:54","slug":"how-to-prepare-test-samples-what-machines-are-there","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/zh\/how-to-prepare-test-samples-what-machines-are-there\/","title":{"rendered":"\u5982\u4f55\u51c6\u5907\u6d4b\u8bd5\u6837\u54c1\uff1f\u6709\u54ea\u4e9b\u673a\u5668\uff1f"},"content":{"rendered":"<!-- lc-qa-start -->\n<p><strong>Quick answer:<\/strong> For UV monomer and resin selection, the key commercial question is not \u201cwhich material is best in general\u201d but \u201cwhich package delivers the right balance of flow, cure, adhesion, and durability in the real application.\u201d<\/p>\n<!-- lc-qa-end -->\n\n\n<ol class=\"wp-block-list\"><li>\u6838\u78c1\u5171\u632f\u5149\u8c31\u4eea\uff1a<br>(1\uff09\u9001\u68c0\u6837\u54c1\u7684\u7eaf\u5ea6\u4e00\u822c\u5e94&gt;95%\uff0c\u4e0d\u542b\u94c1\u5c51\u3001\u7070\u5c18\u3001\u6ee4\u7eb8\u68c9\u7b49\u6742\u8d28\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u6709\u673a\u7269\u6240\u9700\u7684\u6837\u54c1\u91cf\uff1a1H \u5149\u8c31&gt;5 \u6beb\u514b\uff0c13C \u5149\u8c31&gt;15 \u6beb\u514b\uff0c\u9ad8\u5206\u5b50\u7269\u8d28\u7684\u6837\u54c1\u91cf\u5e94\u9002\u5f53\u589e\u52a0\u3002<br>(2) \u5728\u8fdb\u884c\u6db2\u4f53\u6837\u54c1\u5206\u6790\u65f6\uff0c\u8981\u6c42\u6837\u54c1\u5728\u67d0\u79cd\u6c1a\u4ee3\u6eb6\u5242\u4e2d\u5177\u6709\u826f\u597d\u7684\u6eb6\u89e3\u6027\uff0c\u56e0\u6b64\u5e94 \u9996\u5148\u9009\u62e9\u6eb6\u5242\u3002\u5e38\u7528\u7684\u6c18\u4ee3\u6eb6\u5242\u6709\u6c2f\u4eff\u3001\u91cd\u6c34\u3001\u7532\u9187\u3001\u4e19\u916e\u3001\u4e8c\u7532\u57fa\u4e9a\u781c\u3001\u82ef\u3001\u90bb\u4e8c\u6c2f\u82ef\u3001\u4e59\u8148\u3001\u5421\u5576\u3001\u4e59\u9178\u548c\u4e09\u6c1f\u4e59\u9178\u3002<br>(3) \u63d0\u4f9b\u6837\u54c1\u7684\u53ef\u80fd\u7ed3\u6784\u6216\u6765\u6e90\u3002\u662f\u5426\u6709\u7279\u6b8a\u8981\u6c42\uff08\u5982\u68c0\u6d4b\u6e29\u5ea6\u3001\u5149\u8c31\u5bbd\u5ea6\u7b49\uff09\u3002<\/li><li>\u7ea2\u5916\u5149\u8c31\u4eea\uff1a<br>(1) \u6837\u54c1\u5fc5\u987b\u63d0\u524d\u51c0\u5316\uff0c\u4ee5\u786e\u4fdd\u8db3\u591f\u7684\u7eaf\u5ea6\uff1b<br>(2) \u5fc5\u987b\u4e8b\u5148\u5bf9\u6837\u54c1\u8fdb\u884c\u8131\u6c34\u548c\u5e72\u71e5\u5904\u7406\uff0c\u4ee5\u907f\u514d\u635f\u574f\u4eea\u5668\uff0c\u540c\u65f6\u4e5f\u53ef\u907f\u514d\u6c34\u5cf0\u5bf9\u6837 \u54c1\u5149\u8c31\u7684\u5e72\u6270\uff1b<br>(3) \u5bf9\u4e8e\u6613\u6f6e\u89e3\u7684\u6837\u54c1\uff0c\u8bf7\u81ea\u5907\u5e72\u71e5\u5668\u4fdd\u5b58\uff1b<br>(4) \u5bf9\u4e8e\u6613\u6325\u53d1\u3001\u6613\u5347\u534e\u548c\u53d7\u70ed\u4e0d\u7a33\u5b9a\u7684\u6837\u54c1\uff0c\u5e94\u4f7f\u7528\u5e26\u5bc6\u5c01\u76d6\u6216\u585e\u5b50\u7684\u5bb9\u5668\uff0c\u5e76\u5c06\u5176\u76d6 \u7d27\uff1b<br>(5) \u5bf9\u4e8e\u6709\u6bd2\u548c\u8150\u8680\u6027\u6837\u54c1\uff0c\u5fc5\u987b\u7528\u5bc6\u5c01\u5bb9\u5668\u5305\u88c5\u3002<\/li><li>\u6709\u673a\u8d28\u8c31\u4eea\uff1a<br>\u5b83\u9002\u7528\u4e8e\u5206\u6790\u76f8\u5bf9\u5206\u5b50\u8d28\u91cf\u4e3a 50 ~ 2000u \u7684\u6db2\u4f53\u548c\u56fa\u4f53\u6709\u673a\u5316\u5408\u7269\u6837\u54c1\u3002\u6837\u54c1\u5e94\u7eaf\u51c0\u5982\u5355\u4e00\u6210\u5206\u3002<\/li><li>\u6c14\u76f8\u8272\u8c31-\u8d28\u8c31\u4eea\uff1a<br>\u8fdb\u5165\u6c14\u76f8\u8272\u8c31\u4eea\u7089\u7684\u6837\u54c1\u5fc5\u987b\u5728\u8272\u8c31\u67f1\u7684\u5de5\u4f5c\u6e29\u5ea6\u8303\u56f4\u5185\u5b8c\u5168\u6c14\u5316\u3002<\/li><li>\u6db2\u76f8\u8272\u8c31-\u8d28\u8c31\u4eea\uff1a<br>(1) \u6613\u71c3\u3001\u6613\u7206\u3001\u6709\u6bd2\u548c\u8150\u8680\u6027\u6837\u54c1\u5fc5\u987b\u6709\u6807\u8bb0\u3002<br>(2) \u4e3a\u786e\u4fdd\u5206\u6790\u7ed3\u679c\u7684\u51c6\u786e\u6027\u548c\u53ef\u9760\u6027\uff0c\u8981\u6c42\u6837\u54c1\u5b8c\u5168\u6eb6\u89e3\uff0c\u4e0d\u542b\u673a\u68b0\u6742\u8d28\u3002<br>(3) \u5c3d\u53ef\u80fd\u63d0\u4f9b\u6837\u54c1\u7684\u7ed3\u6784\u5f0f\u3001\u5206\u5b50\u91cf\u6216\u5b98\u80fd\u56e2\uff0c\u4ee5\u4fbf\u9009\u62e9\u7535\u79bb\u65b9\u6cd5\uff1b (4) \u4f7f\u7528\u6db2\u76f8\u8272\u8c31-\u8d28\u8c31\u8054\u7528\u4eea\u65f6\uff0c\u6240\u6709\u7f13\u51b2\u4f53\u7cfb\u5747\u5e94\u4f7f\u7528\u6325\u53d1\u6027\u7f13\u51b2\u6db2\uff0c\u5982\u918b\u9178\u3001\u918b\u9178\u94f5\u3001\u6c22 \u4e0e\u56db\u4e01\u57fa\u6c27\u5316\u94f5\u7b49\u914d\u5236\u7684\u7f13\u51b2\u6db2\u3002<\/li><li>\u98de\u884c\u65f6\u95f4\u8d28\u8c31\u4eea\uff1a<br>(1) \u6837\u672c\u7c7b\u578b\u3001\u6210\u5206\u548c\u6837\u672c\u91cf<br>\u8be5\u4eea\u5668\u64c5\u957f\u6d4b\u91cf\u80bd\u548c\u86cb\u767d\u8d28\uff0c\u4ee5\u53ca\u5176\u4ed6\u751f\u7269\u5927\u5206\u5b50\uff0c\u5982\u591a\u7cd6\u3001\u6838\u9178\u548c\u9ad8\u5206\u5b50\u805a\u5408\u7269\u3001\u5408\u6210\u4f4e\u805a\u7269\uff0c\u4ee5\u53ca\u4e00\u4e9b\u5206\u5b50\u91cf\u76f8\u5bf9\u8f83\u5c0f\u7684\u6709\u673a\u7269\u8d28\uff0c\u5982 C60 \u6216 C60 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\u7eaf\u5ea6<br>\u4e3a\u4e86\u83b7\u5f97\u9ad8\u8d28\u91cf\u7684\u8d28\u8c31\u56fe\uff0c\u80bd\u548c\u86cb\u767d\u8d28\u6837\u54c1\u5e94\u907f\u514d\u4f7f\u7528\u6c2f\u5316\u94a0\u3001\u6c2f\u5316\u9499\u3001\u78f7\u9178\u6c22 \u94be\u3001\u4e8c\u7532\u4e9a\u781c\u3001\u5c3f\u7d20\u3001\u7518\u6cb9\u3001\u4e09\u785d\u57fa\u7532\u82ef\u3001\u5410\u6e29\u3001\u5341\u4e8c\u70f7\u57fa\u786b\u9178\u94a0\u7b49\u5316\u5b66\u7269\u8d28\u3002\u5982\u679c\u6d4b\u8bd5\u6837\u54c1\u5728\u524d\u5904\u7406\u8fc7\u7a0b\u4e2d\u65e0\u6cd5\u907f\u514d\u4f7f\u7528\u4e0a\u8ff0\u8bd5\u5242\uff0c\u5219\u5fc5\u987b\u901a\u8fc7\u900f\u6790\u548c\u9ad8\u6548\u6db2\u76f8\u8272 \u8c31\u6cd5\u8fdb\u884c\u51c0\u5316\u3002\u6c34\u3001\u7532\u9178\u94f5\u3001\u4e59\u9178\u94f5\u3001\u78b3\u9178\u6c22\u94f5\u3001\u4e59\u8148\u3001\u4e09\u6c1f\u4e59\u9178\u7b49\u90fd\u662f\u51c0\u5316\u6837\u54c1\u7684\u5408\u9002\u8bd5\u5242\u3002\u6837\u54c1\u4e2d\u7684\u76d0\u5206\u53ef\u901a\u8fc7\u79bb\u5b50\u4ea4\u6362\u6cd5\u53bb\u9664\u3002\u86cb\u767d\u8d28\u6837\u54c1\u7eaf\u5316\u540e\u5e94\u5c3d\u91cf\u51bb\u5e72\u3002<\/li><li>\u7d2b\u5916-\u53ef\u89c1\u5438\u6536\u5149\u8c31\u4eea\uff1a<br>(1) \u6837\u54c1\u6eb6\u6db2\u7684\u6d53\u5ea6\u5fc5\u987b\u9002\u5f53\uff0c\u5fc5\u987b\u6e05\u6f88\u900f\u660e\uff0c\u4e0d\u5f97\u6709\u6c14\u6ce1\u6216\u60ac\u6d6e\u7269\u8d28\uff1b<br>(2) \u56fa\u4f53\u6837\u54c1\u91cf\u5927\u4e8e 0.2 \u514b\uff0c\u6db2\u4f53\u6837\u54c1\u91cf\u5927\u4e8e 2 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\u6837\u54c1\u5fc5\u987b\u662f\u4e0d\u542b\u5438\u9644\u6c34\u5e76\u7ecf\u8fc7\u51c0\u5316\u7684\u5747\u5300\u56fa\u4f53\u9897\u7c92\u6216\u6db2\u4f53\u3002\u5982\u679c\u6837\u54c1\u4e0d\u7eaf\uff08\u542b\u6709\u5438\u9644\u6c34\u3001\u6709\u673a\u6eb6\u5242\u3001\u65e0\u673a\u76d0\u6216\u5176\u4ed6\u6742\u8d28\uff09\uff0c\u5c06\u5f71\u54cd\u5206\u6790\u7ed3 \u679c\uff0c\u5bfc\u81f4\u6d4b\u8bd5\u503c\u4e0e\u8ba1\u7b97\u503c\u4e0d\u4e00\u81f4\uff1b<br>(3) \u6837\u54c1\u91cf\u5e94\u8db3\u4ee5\u6ee1\u8db3\u65b9\u6cd5\u548c\u4eea\u5668\u7684\u7ebf\u6027\u548c\u7075\u654f\u5ea6\u8981\u6c42\u3002<\/li><li>\u79bb\u5b50\u8272\u8c31\u4eea<br>\u6837\u54c1\u53ef\u4ee5\u6eb6\u4e8e\u6c34\u6216\u7a00\u9178\u6216\u7a00\u78b1\uff0c\u4f46\u6240\u7528\u7684\u9178\u6216\u78b1\u4e0d\u5e94\u542b\u6709\u5f85\u6d4b\u79bb\u5b50\u3002\u5bf9\u4e8e\u542b\u6709\u5f85\u6d4b\u5143\u7d20\u4f46\u5728\u6c34\u6eb6\u6db2\u3001\u9178\u6eb6\u6db2\u548c\u78b1\u6eb6\u6db2\u4e2d\u4ee5\u975e\u79bb\u5b50\u72b6\u6001\u5b58\u5728\u7684\u5316\u5408\u7269\uff0c\u9700\u8981\u5bf9\u6837\u54c1\u8fdb\u884c\u76f8\u5e94\u7684\u9884\u5904\u7406\u3002<\/li><li>\u7b49\u79bb\u5b50\u4f53\u539f\u5b50\u53d1\u5c04\u5149\u8c31\u4eea\uff1a<br>\u5c3d\u53ef\u80fd\u5217\u51fa\u4e3b\u8981\u6210\u5206\u3001\u6742\u8d28\u6210\u5206\u53ca\u5176\uff08\u4f30\u8ba1\uff09\u542b\u91cf\uff1b\u5f85\u6d4b\u5143\u7d20\u7684\u6700\u4f4e\uff08\u4f30\u8ba1\uff09\u542b\u91cf\u662f\u591a\u5c11\uff1f\u5bf9\u4e8e\u6eb6\u6db2\uff0c\u8bf7\u8bf4\u660e\u4ecb\u8d28\u6210\u5206\uff08\u6eb6\u5242\u7c7b\u578b\u3001\u9178\u78b1\u53ca\u5176\uff08\u4f30\u8ba1\uff09\u542b\u91cf\uff09\uff0c\u662f\u5426\u542b\u6c1f\uff08F-\uff09\uff1f\u56e0\u4e3a\u6c1f (F-) \u4f1a\u4e25\u91cd\u8150\u8680\u96fe\u5316\u5668\uff01<br>\u5c06\u56fa\u4f53\u6837\u54c1\u5236\u6210\u4e0d\u542b\u4efb\u4f55\u6709\u673a\u7269\u7684\u6eb6\u6db2\uff0c\u6700\u7ec8\u9178\u5ea6\u63a7\u5236\u5728 1 \u6469\u5c14\uff0c\u6837\u54c1\u91cf\u4e3a 5-50 \u6beb\u5347\u3002\u5982\u679c\u542b\u6709\u60ac\u6d6e\u7269\u6216\u6c89\u6dc0\u7269\uff0c\u4e00\u5b9a\u8981\u8fc7\u6ee4\u3002<br>\u6837\u54c1\u9700\u8981\u52a0\u5de5\u6210\u6eb6\u6db2\u3002<\/li><li>\u539f\u5b50\u8367\u5149\u5149\u8c31\u4eea\uff1a<br>(1) \u6837\u54c1\u5206\u6790\u7684\u4e00\u822c\u8981\u6c42<br>\u539f\u5b50\u8367\u5149\u5149\u8c31\u4eea\u5206\u6790\u7684\u5bf9\u8c61\u662f\u4ee5\u79bb\u5b50\u72b6\u6001\u5b58\u5728\u7684\u7837\uff08As\uff09\u3001\u7852\uff08Se\uff09\u3001\u9517\uff08Ge\uff09\u3001\u78b2\uff08Te\uff09\u7b49\u539f\u5b50\u548c\u6c5e\uff08Hg\uff09\u539f\u5b50\u3002\u6837\u54c1\u5fc5\u987b\u662f\u6c34\u6eb6\u6db2\u6216\u53ef\u6eb6\u4e8e\u9178\u7684\u6eb6\u6db2\u3002<br>(2) \u56fa\u4f53\u6837\u54c1<br>\u65e0\u673a\u56fa\u4f53\u6837\u54c1\uff0c\u6837\u54c1\u5728\u7b80\u5355\u6eb6\u89e3\u540e\u4ecd\u80fd\u4fdd\u6301\u9002\u5f53\u7684\u9178\u5ea6\u3002<br>\u68c0\u6d4b\u7837\uff08As\uff09\u3001\u7852\uff08Se\uff09\u3001\u78b2\uff08Te\uff09\u3001\u6c5e\uff08Hg\uff09\uff0c\u4ecb\u8d28\u4e3a\u76d0\u9178\uff085%\uff0cv\/v\uff09\uff1b<br>\u68c0\u6d4b\u9517\uff08Ge\uff09\u65f6\uff0c\u4ecb\u8d28\u4e3a\u786b\u9178\uff085%\uff0cv\/v\uff09\uff1b<br>\u5bf9\u4e8e\u6c5e\uff08Hg\uff09\u7684\u68c0\u6d4b\uff0c\u4ecb\u8d28\u4e5f\u53ef\u4ee5\u662f\u785d\u9178\uff085%\uff0cv\/v\uff09\uff0c\u800c\u68c0\u6d4b\uff08As\uff09\u7684\u4ecb\u8d28\u4e5f\u53ef\u4ee5\u662f\u786b\u9178\uff082%\uff0cv\/v\uff09\u3002<br>\u7531\u4e8e\u94dc\u3001\u94f6\u3001\u91d1\u3001\u94c2\u548c\u5176\u4ed6\u91d1\u5c5e\u5bf9\u5f85\u6d4b\u5143\u7d20\u7684\u5e72\u6270\u8f83\u5927\uff0c\u56e0\u6b64\u6b64\u7c7b\u5408\u91d1\u6837\u54c1\u4e2d\u7684\u7837\u3001\u7852\u3001\u78b2\u548c\u6c5e\u4e0d\u5e94\u4f7f\u7528\u672c\u4eea\u5668\u8fdb\u884c\u6d4b\u5b9a\u3002<br>\u6709\u673a\u6216\u751f\u7269\u56fa\u4f53\u6837\u672c<br>\u6837\u54c1\u88ab\u785d\u5316\u6210\u6eb6\u6db2\uff0c\u5e76\u4fdd\u6301\u9002\u5f53\u7684\u9178\u5ea6\u3002\u57f9\u517b\u57fa\u7684\u9178\u5ea6\u4e0e\u65e0\u673a\u6837\u54c1\u7684\u9178\u5ea6\u76f8\u540c\u3002<br>(3) \u6837\u54c1\u4e2d\u5f85\u6d4b\u5143\u7d20\u7684\u6781\u9650\u8981\u6c42<br>\u6839\u636e\u4eea\u5668\u7684\u7075\u654f\u5ea6\u548c\u5206\u6790\u65b9\u6cd5\uff0c\u6837\u54c1\u4e2d\u5f85\u6d4b\u5143\u7d20\u7684\u4e0a\u4e0b\u9650\u4e3a 0.05 \u03bcg\/g ~ 500 \u03bcg\/g\u3002\u4f7f\u7528\u672c\u4eea\u5668\u68c0\u6d4b\u8d85\u51fa\u6b64\u542b\u91cf\u8303\u56f4\u7684\u6837\u54c1\u5c06\u65e0\u6cd5\u4fdd\u8bc1\u68c0\u6d4b\u7ed3\u679c\u7684\u51c6\u786e\u6027\u548c\u53ef\u9760\u6027\u3002<br>(4) \u6837\u672c\u6570\u91cf<br>\u6bcf\u79cd\u5f85\u68c0\u6d4b\u5143\u7d20\u7684\u56fa\u4f53\u6837\u54c1\u91cf\u4e0d\u5c11\u4e8e 2 \u514b\uff0c\u6db2\u4f53\u6837\u54c1\u91cf\u4e0d\u5c11\u4e8e 20 \u6beb\u5347\uff0c\u6c34\u6837\u4e0d\u5c11\u4e8e 100 \u6beb\u5347\u3002<\/li><li>\u5dee\u793a\u626b\u63cf\u91cf\u70ed\u4eea<br>\u56fa\u4f53\u6837\u54c1\u5728\u6d4b\u8bd5\u6e29\u5ea6\u8303\u56f4\u5185\u4e0d\u4f1a\u5206\u89e3\u6216\u53d8\u8d28\uff0c\u4e5f\u4e0d\u4f1a\u4ea7\u751f\u6325\u53d1\u6027\u7269\u8d28\u3002\u6837\u54c1\u91cf\uff1a\u65e0\u673a\u7269\u6216\u6709\u673a\u7269\u4e0d\u5c11\u4e8e 20 \u6beb\u514b\uff0c\u836f\u7269\u4e0d\u5c11\u4e8e 5 \u6beb\u514b\u3002<\/li><li>\u70ed\u91cd\u5206\u6790\u4eea<br>\u6837\u54c1\u91cf\uff1a\u4e0d\u5c11\u4e8e 30 \u6beb\u514b\u3002\u6ce8\u660e\u68c0\u6d4b\u6e29\u5ea6\u8303\u56f4\u3001\u5b9e\u9a8c\u6c14\u6c1b\uff08\u7a7a\u6c14\u3001N2 \u6216 Ar\uff09\u3001\u52a0\u70ed\u901f\u7387\u3001\u6c14\u4f53\u6d41\u901f\uff08\u5982\u6709\u7279\u6b8a\u8981\u6c42\uff09\u3002<\/li><\/ol>\n\n\n<!-- lc-commercial-start -->\n<h2>How buyers usually evaluate UV monomers and resin systems<\/h2>\n<p>Most successful UV formulations are built by choosing the backbone first and then tuning the reactive monomer package around the substrate, cure method, and end-use stress. That usually produces a more stable result than choosing materials by viscosity or price alone.<\/p>\n<ul>\n<li><strong>Start from the final property target:<\/strong> hardness, flexibility, adhesion, and shrinkage rarely point to exactly the same raw-material package.<\/li>\n<li><strong>Screen the reactive package as a whole:<\/strong> oligomer, monomer, and photoinitiator choices interact strongly in UV systems.<\/li>\n<li><strong>Use viscosity as a tool, not the only decision rule:<\/strong> the easiest-processing material is not always the one that performs best after cure.<\/li>\n<li><strong>Check the real substrate:<\/strong> plastic, metal, label film, gel systems, and coatings can reward very different polarity and cure-density balances.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/zh\/product\/cas-270586-78-2\/\">CHLUMINIT TMO<\/a>:<\/strong> A valuable comparison point when lower yellowing or TPO-replacement discussions matter.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/zh\/product\/hpma-monomer-cas-27813-02-1\/\">CHLUMICRYL HPMA<\/a>:<\/strong> Useful when more polarity and adhesion support are needed in the reactive package.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/zh\/product\/iboa-monomer-cas-5888-33-5\/\">CHLUMICRYL IBOA<\/a>:<\/strong> A strong low-viscosity monomer reference when hardness and good flow both matter.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/zh\/product\/tmpta-cas-15625-89-5\/\">CHLUMICRYL TMPTA<\/a>:<\/strong> A standard reactive monomer benchmark when stronger crosslink density is required.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Can one UV monomer or resin solve every formulation problem?<\/strong><br \/>Usually no. Commercially strong formulas depend on how several components work together to balance cure, adhesion, flow, and durability.<\/p>\n<p><strong>Why should monomers be screened together with oligomers?<\/strong><br \/>Because monomers can change viscosity, cure rate, shrinkage, and substrate behavior enough to alter the final ranking of the same backbone resin.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>Nuclear magnetic resonance spectrometer:(1) The purity of the sample submitted for inspection should generally be >95%, free of iron filings, dust, filter paper wool and other impurities. Generally, the amount<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[],"class_list":["post-4968","post","type-post","status-publish","format-standard","hentry","category-laboratory-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to prepare test samples? 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