{"id":157,"date":"2024-01-08T16:20:52","date_gmt":"2024-01-08T08:20:52","guid":{"rendered":"https:\/\/www.bihec.com\/bnnt-materials\/?p=157"},"modified":"2024-01-08T16:20:52","modified_gmt":"2024-01-08T08:20:52","slug":"%e7%be%8e%e5%9b%bdbnnt-materials-llc-bnnts-vs-cnts-%e6%b0%ae%e5%8c%96%e7%a1%bc%e7%ba%b3%e7%b1%b3%e7%ae%a1%e5%92%8c%e7%a2%b3%e7%ba%b3%e7%b1%b3%e7%ae%a1%e7%9a%84%e5%bc%82%e5%90%8c","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/bnnt-materials\/%e7%be%8e%e5%9b%bdbnnt-materials-llc-bnnts-vs-cnts-%e6%b0%ae%e5%8c%96%e7%a1%bc%e7%ba%b3%e7%b1%b3%e7%ae%a1%e5%92%8c%e7%a2%b3%e7%ba%b3%e7%b1%b3%e7%ae%a1%e7%9a%84%e5%bc%82%e5%90%8c\/","title":{"rendered":"\u7f8e\u56fdBNNT Materials, LLC BNNTs vs. CNTs \u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u548c\u78b3\u7eb3\u7c73\u7ba1\u7684\u5f02\u540c"},"content":{"rendered":"

\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1<\/a>\u548c\u78b3\u7eb3\u7c73\u7ba1\u5bf9\u6bd4<\/h1>\n
$\"\"$ <\/p>\n
BNNT\u6750\u6599\u516c\u53f8\u751f\u4ea7\u4e16\u754c\u4e0a\u6700\u9ad8\u8d28\u91cf\u7684BNNT\u3002\u6211\u4eec\u7684\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u73b0\u5728\u6709\u591a\u79cd\u751f\u957f\u548c\u7cbe\u5236\u7684\u5f62\u5f0f\u3002<\/p>\n
\u6211\u4eec\u7684\u6807\u51c6\u4ea7\u54c110 (SP10)\u4ea7\u54c1\u542b\u6709\u9ad8\u7ed3\u6676\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\uff0c\u7531\u65e0\u50ac\u5316\u5242\u9ad8\u6e29\/\u9ad8\u538b(HTP)\u65b9\u6cd5\u751f\u4ea7\uff0c\u4e5f\u88ab\u79f0\u4e3a\u52a0\u538b\u84b8\u6c14\/\u51b7\u51dd\u5668(PVC)\u65b9\u6cd5\u3002\u539f\u5408\u6210\u4ea7\u54c1\u542b\u6709\u7ea640 wt.%\u7684\u5143\u7d20\u787c\uff0c\u800c\u7cbe\u5236\u4ea7\u54c1(\u7528-R\u8868\u793a)\u542b\u67091 wt.%\u7684\u5143\u7d20\u787c\u3002\u6211\u4eec\u7684BNNT\u4ea7\u54c1\u53ef\u4f5c\u4e3a\u6ce1\u6ce1\u7403\uff0c\u57ab\uff0c\u7c89\u672b\uff0c\u9897\u7c92\uff0c\u5206\u6563\u5242\uff0c\u4ee5\u53ca\u66f4\u591a\uff0c\u90fd\u53ef\u4ee5\u5b9a\u5236\uff0c\u4ee5\u6ee1\u8db3\u60a8\u7684\u9700\u6c42\u3002\u72ec\u7279\u7684\u662f\uff0c\u6211\u4eec\u516c\u53f8\u7684\u4ea7\u54c1\u9664\u4e86\u5929\u7136\u787c\u5916\uff0c\u8fd8\u6709\u787c\u7684\u540c\u4f4d\u7d20:10B (>96%)\u548c11B (>98%)\u3002<\/p>\n
BNNT\u7684\u6280\u672f\u53c2\u6570<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
BN content<\/td>\n >99% (refined materials)<\/td>\n<\/tr>\n
Residual Impurities<\/td>\n Refined materials contain <1 wt.% elemental boron<\/td>\n<\/tr>\n
Tap Density<\/td>\n Low, ~0.25 mg\/cm^{3<\/sup><\/td>\n<\/tr>\n}
Defect density<\/td>\n Extremely low (BNNTs flex and recover when bent)<\/td>\n<\/tr>\n
Band gap<\/td>\n 5.7 eV (direct measurement by low energy EELS)<\/td>\n<\/tr>\n
Surface area<\/td>\n up to 400 m^{2<\/sup>\/g (by multipoint BET)<\/td>\n<\/tr>\n}
Network<\/td>\n many isolated tubes, bundles up to 5 tubes (by TEM)<\/td>\n<\/tr>\n
Number of walls<\/td>\n 1 to 5 walls are typical, 2 or 3 walls are most common (by TEM)<\/td>\n<\/tr>\n
BNNT length<\/td>\n up to 200 \u03bcm (by SEM), longer suspected<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/p>\n
\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u548c\u78b3\u7eb3\u7c73\u7ba1\u5bf9\u6bd4<\/strong><\/p>\n
\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u548c\u78b3\u7eb3\u7c73\u7ba1\u90fd\u662f\u7eb3\u7c73\u6750\u6599\u7684\u4e00\u79cd\uff0c\u5b83\u4eec\u5728\u6750\u6599\u6027\u8d28\u3001\u5236\u5907\u65b9\u6cd5\u3001\u5e94\u7528\u9886\u57df<\/a>\u7b49\u65b9\u9762\u6709\u7740\u4e00\u5b9a\u7684\u5f02\u540c\u3002<\/p>\n
\u9996\u5148\u6765\u770b\u4e24\u79cd\u7eb3\u7c73\u7ba1\u7684\u76f8\u540c\u70b9\u3002\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u548c\u78b3\u7eb3\u7c73\u7ba1\u90fd\u662f\u76f4\u5f84\u5728\u7eb3\u7c73\u7ea7\u5c3a\u5bf8\u8303\u56f4\u5185\uff0c\u957f\u5ea6\u53ef\u8fbe\u6570\u5341\u5fae\u7c73\u4ee5\u4e0a\u7684\u7eb3\u7c73\u7ba1\u72b6\u6750\u6599\u3002\u5b83\u4eec\u7684\u76f4\u5f84\u901a\u5e38\u57281-100 \u7eb3\u7c73\u4e4b\u95f4\uff0c\u6bd4\u666e\u901a\u7684\u6750\u6599\u66f4\u52a0\u7ec6\u5c0f\uff0c\u56e0\u6b64\u53bf\u6709\u5f88\u5927\u7684\u6bd4\u8868\u9762\u79ef\u3002\u7531\u4e8e\u7eb3\u7c73\u7ba1\u7684\u7279\u6b8a\u7ed3\u6784\u548c\u5c3a\u5bf8\u6548\u5e94\uff0c\u5177\u6709\u8bb8\u591a\u4f18\u5f02\u7684\u6027\u80fd\uff0c\u6bd4\u5982\u9ad8\u6bd4\u8868\u9762\u79ef\u3001\u9ad8\u5f3a\u5ea6\u3001\u826f\u597d\u7684\u5bfc\u7535\u6027\u548c\u5bfc\u70ed\u6027\u7b49\u3002\u56e0\u6b64\uff0c\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u548c\u78b3\u7eb3\u7c73\u7ba1\u90fd\u5177\u6709\u5f88\u5f3a\u7684\u5e94\u7528\u6f5c\u529b\u3002<\/p>\n
\u5176\u6b21\uff0c\u6211\u4eec\u6765\u770b\u4e24\u79cd\u7eb3\u7c73\u7ba1\u7684\u5f02\u540c\u70b9\u3002\u5728\u6750\u6599\u6027\u8d28\u65b9\u9762\uff0c\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u662f\u7531\u6c2e\u5316\u787c\u539f\u5b50\u6784\u6210\u7684\u7eb3\u7c73\u7ba1\uff0c\u5177\u6709\u5f88\u9ad8\u7684\u786c\u5ea6\u548c\u70ed\u5bfc\u7387\uff0c\u540c\u65f6\u8fd8\u5177\u6709\u4f18\u5f02\u7684\u5316\u5b66\u7a33\u5b9a\u6027\u548c\u7535\u5b66\u6027\u80fd\u3002\u78b3\u7eb3\u7c73\u7ba1\u5219\u662f\u7531\u78b3\u539f\u5b50\u6784\u6210\u7684\u7eb3\u7c73\u7ba1\uff0c\u5177\u6709\u4f18\u5f02\u7684\u529b\u5b66\u6027\u80fd\u548c\u5bfc\u7535\u6027\u80fd\uff0c\u540c\u65f6\u4e5f\u5177\u6709\u5f88\u9ad8\u7684\u5316\u5b66\u7a33\u5b9a\u6027\u3002\u56e0\u6b64\uff0c\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u548c\u78b3\u7eb3\u7c73\u7ba1\u5728\u67d0\u4e9b\u6027\u80fd\u65b9\u9762\u6709\u76f8\u4f3c\u4e4b\u5904\u4f46\u5728\u5176\u4ed6\u65b9\u9762\u53c8\u6709\u7740\u660e\u663e\u7684\u5dee\u5f02\u3002<\/p>\n
\u5728\u5236\u5907\u65b9\u6cd5\u65b9\u9762\uff0c\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u7684\u5236\u5907\u76f8\u5bf9\u8f83\u4e3a\u56f0\u96be\uff0c\u76ee\u524d\u4e3b\u8981\u901a\u8fc7\u5316\u5b66\u6c14\u76f8\u6c89\u79ef\u3001\u5316\u5b66\u6c14\u76f8\u6c89\u79ef\u7b49\u65b9\u6cd5\u6765\u5236\u5907\u3002\u800c\u78b3\u7eb3\u7c73\u7ba1\u7684\u5236\u5907\u65b9\u6cd5\u6bd4\u8f83\u591a\u6837\uff0c\u4e3b\u8981\u5305\u62ec\u7535\u5f27\u653e\u7535\u6cd5\u3001\u5316\u5b66\u6c14\u76f8\u6c89\u79ef\u6cd5\u3001\u5316\u5b66\u6c7d\u76f8\u6c89\u79ef\u6cd5\u7b49\u591a\u79cd\u65b9\u6cd5\u3002\u56e0\u6b64\uff0c\u5236\u5907\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u76f8\u5bf9\u6765\u8bf4\u66f4\u4e3a\u56f0\u96be\uff0c\u6280\u672f\u8981\u6c42\u66f4\u9ad8\u3002<\/p>\n
\u5728\u5e94\u7528\u9886\u57df\u65b9\u9762\uff0c\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u548c\u78b3\u7eb3\u7c73\u7ba1\u4e5f\u6709\u7740\u5404\u81ea\u7684\u7279\u70b9\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u7531\u4e8e\u5176\u4f18\u5f02\u7684\u786c\u5ea6\u548c\u5bfc\u7535\u6027\u80fd\uff0c\u5728\u7eb3\u7c73\u6750\u6599\u589e\u5f3a\u590d\u5408\u6750\u6599\u3001\u5bfc\u70ed\u6750\u6599\u3001\u7535\u5b50\u5668\u4ef6\u7b49\u9886\u57df\u90fd\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u800c\u78b3\u7eb3\u7c73\u7ba1\u7531\u4e8e\u5176\u4f18\u5f02\u7684\u529b\u5b66\u6027\u80fd\u548c\u5bfc\u7535\u6027\u80fd\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6750\u6599\u5f3a\u5316\u3001\u5bfc\u7535\u6750\u6599\u50ac\u5316\u5242\u8f7d\u4f53\u7b49\u9886\u57df\u3002<\/p>\n
<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n Boron nitride nanotubes (BNNT)<\/strong><\/td>\n Carbon nanotubes (CNT)<\/strong><\/td>\n<\/tr>\n
Electrical<\/td>\n Insulating
\n(~5.7 eV wide-bandgap semiconductor)<\/td>\n Metallic or semiconducting<\/td>\n<\/tr>\n
Optical<\/td>\n Strong UV absorbers and transparent in the visible; visible emitters<\/td>\n Ultraviolet, visible, and near-infrared absorbers; semiconductors are near-infrared emitters<\/td>\n<\/tr>\n
Radio Frequency transparency<\/td>\n Yes (e.g. for 5G or radar)<\/td>\n No<\/td>\n<\/tr>\n
Thermal stability<\/td>\n Stable to at least 800\u00b0C in air<\/td>\n Up to 480\u00b0C<\/td>\n<\/tr>\n
Thermal neutron capture cross section<\/td>\n Boron isotope enrichment dependent (^{10<\/sup>B ~3825 barns vs.\u00a0^{11<\/sup>B ~0.0055 barns; N = 1.9 barns)<\/td>\n}} C = 0.0035 barn<\/td>\n<\/tr>\n
Bond polarity<\/td>\n Polar (B-N)<\/td>\n Nonpolar (C-C)<\/td>\n<\/tr>\n
Piezoelectric behavior<\/td>\n Yes (0.25 \u2013 0.4 C\/m^{2<\/sup>)<\/td>\n} Yes<\/td>\n<\/tr>\n
Surface morphology<\/td>\n Corrugated<\/td>\n Smooth<\/td>\n<\/tr>\n
Color<\/td>\n White or translucent<\/td>\n Black<\/td>\n<\/tr>\n
Toxicity<\/td>\n Very low, possibly no cytotoxicity<\/td>\n Yes<\/td>\n<\/tr>\n
Theoretical thermal conductivity
\n(vs. copper ~400 W\/m\u2219K)<\/td>\n ~3,500 W\/m\u2219K (axial)<\/td>\n<\/tr>\n
Mechanical strength
\n(Young’s modulus)<\/td>\n ~1.2 TPa<\/td>\n<\/tr>\n
Coefficient of thermal expansion (CTE)<\/td>\n -1 x 10^{-6<\/sup><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
BNNTs vs. CNTs<\/a>\n\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u548c\u78b3\u7eb3\u7c73\u7ba1\u7684\u5f02\u540c<\/a>\n\u7f8e\u56fdBNNT Materials LLC<\/a><\/div>","protected":false},"excerpt":{"rendered":"\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u548c\u78b3\u7eb3\u7c73\u7ba1\u5bf9\u6bd4 BNNT\u6750\u6599\u516c\u53f8\u751f\u4ea7\u4e16\u754c\u4e0a\u6700\u9ad8\u8d28\u91cf\u7684BNNT\u3002\u6211\u4eec\u7684\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1\u73b0\u5728\u6709\u591a\u79cd\u751f\u957f\u548c\u7cbe\u5236\u7684\u5f62\u5f0f\u3002 \u6211\u4eec\u7684\u6807\u51c6\u4ea7\u54c110 (SP10)\u4ea7\u54c1\u542b\u6709\u9ad8\u7ed3\u6676\u6c2e\u5316\u787c\u7eb3\u7c73\u7ba1 <\/p>\n","protected":false},"author":21,"featured_media":158,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7,6,18,3],"tags":[20,21,19],"_links":{"self":[{"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/posts\/157"}],"collection":[{"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/comments?post=157"}],"version-history":[{"count":1,"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/posts\/157\/revisions"}],"predecessor-version":[{"id":159,"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/posts\/157\/revisions\/159"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/media\/158"}],"wp:attachment":[{"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/media?parent=157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/categories?post=157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bihec.com\/bnnt-materials\/wp-json\/wp\/v2\/tags?post=157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}}