Notice (8): file_put_contents(): Write of 272 bytes failed with errno=28 No space left on device [CORE/src/Log/Engine/FileLog.php, line 140]

        if (!$mask) {
            file_put_contents($pathname, $message . "\n", FILE_APPEND);

file_put_contents - [internal], line ??
Cake\Log\Engine\FileLog::log() - CORE/src/Log/Engine/FileLog.php, line 140
Cake\Log\Log::write() - CORE/src/Log/Log.php, line 392
Cake\Log\Log::warning() - CORE/src/Log/Log.php, line 477
DebugKit\ToolbarService::isSuspiciouslyProduction() - ROOT/vendor/cakephp/debug_kit/src/ToolbarService.php, line 169
DebugKit\ToolbarService::isEnabled() - ROOT/vendor/cakephp/debug_kit/src/ToolbarService.php, line 105
DebugKit\Plugin::bootstrap() - ROOT/vendor/cakephp/debug_kit/src/Plugin.php, line 48
Cake\Http\BaseApplication::pluginBootstrap() - CORE/src/Http/BaseApplication.php, line 182
Cake\Http\Server::bootstrap() - CORE/src/Http/Server.php, line 111
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 79
[main] - ROOT/webroot/index.php, line 40

Notice (8): SplFileObject::fwrite() [<a href='https://secure.php.net/splfileobject.fwrite'>splfileobject.fwrite</a>]: Write of 822 bytes failed with errno=28 No space left on device [CORE/src/Cache/Engine/FileEngine.php, line 141]

Code Context

        $success = $this->_File->ftruncate(0) &&
            $this->_File->fwrite($contents) &&
            $this->_File->fflush();

SplFileObject::fwrite() - [internal], line ??
Cake\Cache\Engine\FileEngine::set() - CORE/src/Cache/Engine/FileEngine.php, line 141
Cake\Database\Schema\CachedCollection::describe() - CORE/src/Database/Schema/CachedCollection.php, line 85
Cake\ORM\Table::getSchema() - CORE/src/ORM/Table.php, line 513
Cake\ORM\Query::addDefaultTypes() - CORE/src/ORM/Query.php, line 290
Cake\ORM\Query::__construct() - CORE/src/ORM/Query.php, line 184
Cake\ORM\Table::query() - CORE/src/ORM/Table.php, line 1702
Cake\ORM\Table::find() - CORE/src/ORM/Table.php, line 1263
App\Controller\NewsController::action_() - APP/Controller/NewsController.php, line 6539
App\Controller\NewsController::get_data() - APP/Controller/NewsController.php, line 5701
App\Controller\NewsController::action_cache() - APP/Controller/NewsController.php, line 5625
App\Controller\NewsController::cache_action() - APP/Controller/NewsController.php, line 5281
App\Controller\NewsController::view() - APP/Controller/NewsController.php, line 3436
Cake\Controller\Controller::invokeAction() - CORE/src/Controller/Controller.php, line 539
Cake\Controller\ControllerFactory::handle() - CORE/src/Controller/ControllerFactory.php, line 140
Cake\Controller\ControllerFactory::invoke() - CORE/src/Controller/ControllerFactory.php, line 115
Cake\Http\BaseApplication::handle() - CORE/src/Http/BaseApplication.php, line 317

Notice (8): unserialize() [<a href='https://secure.php.net/function.unserialize'>function.unserialize</a>]: Error at offset 94197 of 94197 bytes [APP/Controller/NewsController.php, line 5571]

Code Context

               {
                      $a=unserialize($line2);
               }

unserialize - [internal], line ??
App\Controller\NewsController::action_cache() - APP/Controller/NewsController.php, line 5571
App\Controller\NewsController::cache_action() - APP/Controller/NewsController.php, line 5281
App\Controller\NewsController::article_show() - APP/Controller/NewsController.php, line 4290
App\Controller\NewsController::view() - APP/Controller/NewsController.php, line 3822
Cake\Controller\Controller::invokeAction() - CORE/src/Controller/Controller.php, line 539
Cake\Controller\ControllerFactory::handle() - CORE/src/Controller/ControllerFactory.php, line 140
Cake\Controller\ControllerFactory::invoke() - CORE/src/Controller/ControllerFactory.php, line 115
Cake\Http\BaseApplication::handle() - CORE/src/Http/BaseApplication.php, line 317
Cake\Http\Runner::handle() - CORE/src/Http/Runner.php, line 77
Cake\Http\Middleware\CsrfProtectionMiddleware::process() - CORE/src/Http/Middleware/CsrfProtectionMiddleware.php, line 164
Cake\Http\Runner::handle() - CORE/src/Http/Runner.php, line 73
Cake\I18n\Middleware\LocaleSelectorMiddleware::process() - CORE/src/I18n/Middleware/LocaleSelectorMiddleware.php, line 61
Cake\Http\Runner::handle() - CORE/src/Http/Runner.php, line 73
Cake\Http\Middleware\BodyParserMiddleware::process() - CORE/src/Http/Middleware/BodyParserMiddleware.php, line 157
Cake\Http\Runner::handle() - CORE/src/Http/Runner.php, line 73
Cake\Routing\Middleware\RoutingMiddleware::process() - CORE/src/Routing/Middleware/RoutingMiddleware.php, line 161

中元龙港推规模制备石墨烯产品:用物理液相剥离法

互联网 2017-12-04 12:14:06 转载来源: 网易科技报道

12月4日消息北京中元龙港矿业科技有限公司，联合北京化工大学、中盈科创（北京）管理咨询有限公司、国评（北京）科技评估有限公司，在中国科技会堂举办“规模制备石墨烯新技术及产品媒体发布会”，正式发布液相直接剥离法规模化制备石墨烯技术和产品。根据北京中元龙港矿业科技有限公司介绍，发布的石墨烯规模化生产技术采用物理液相剥离法，生产高纯度石墨烯，对环境无污染

12月4日消息北京中元龙港矿业科技有限公司，联合北京化工大学、中盈科创（北京）管理咨询有限公司、国评（北京）科技评估有限公司，在中国科技会堂举办“规模制备石墨烯新技术及产品媒体发布会”，正式发布液相直接剥离法规模化制备石墨烯技术和产品。

根据北京中元龙港矿业科技有限公司介绍，发布的石墨烯规模化生产技术采用物理液相剥离法，生产高纯度石墨烯，对环境无污染。经检测，其石墨烯产品平均层数7层以下，片的尺寸大于3微米，两层以下占20%，目前已经建成年产1吨的中试生产线，计划从2017年6月开始在内蒙古兴和县建设年产500吨石墨烯生产基地。此外，北京中元龙港矿业科技有限公司计划在2020年形成完善的石墨烯产业体系，实现石墨烯材料标准化、系列化和低成本化，在多领域实现规模化应用。北京化工大学毋伟教授是该技术的发明者，在与中元龙港的合作中，他和其团队成功研发水相剪切剥离法规模化制备石墨烯的新技术，获得该石墨烯产品。

据介绍，经生产线验证，该工艺有以下几个特点：一、绿色环保，以水为溶剂，在常压下进行，不加表面活性剂等有机成分，对环境无害；二、成本较低；三、由于产品主要是剥离法制得，缺陷少，层数低，多在七层以内，片的大小在3-5微米之间；未加入表面活性剂对产品无污染，纯度高；产品的导电率接近50000S/m。四、所用重要设备都来自市场定型设备，所使用的添加剂也可从市场购买，原料来源广，可膨或高纯鳞片石墨及人工石墨均可。

此外，中元龙港与北京天丹优谷科技投资有限公司、中盈科创（北京）管理咨询有限公司、全国科技成果转化交易服务平台等多家企事业单位达成合作，现场签署了合作协议。（曲舜）

标签: 中元龙港规模制备石墨产品物理液相离法