Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; plgContentJComments has a deprecated constructor in /var/www/astarmathsandphysics/plugins/content/jcomments/jcomments.php on line 25 Call Stack: 0.0001 362456 1. {main}() /var/www/astarmathsandphysics/index.php:0 0.0890 1211800 2. Joomla\CMS\Application\SiteApplication->execute() /var/www/astarmathsandphysics/index.php:49 0.0890 1211800 3. Joomla\CMS\Application\SiteApplication->doExecute() /var/www/astarmathsandphysics/libraries/src/Application/CMSApplication.php:267 0.1587 4039904 4. Joomla\CMS\Application\SiteApplication->dispatch() /var/www/astarmathsandphysics/libraries/src/Application/SiteApplication.php:233 0.1601 4067488 5. Joomla\CMS\Component\ComponentHelper::renderComponent() /var/www/astarmathsandphysics/libraries/src/Application/SiteApplication.php:194 0.1609 4085200 6. Joomla\CMS\Component\ComponentHelper::executeComponent() /var/www/astarmathsandphysics/libraries/src/Component/ComponentHelper.php:356 0.1610 4102208 7. require_once('/var/www/astarmathsandphysics/components/com_content/content.php') /var/www/astarmathsandphysics/libraries/src/Component/ComponentHelper.php:381 0.1617 4109944 8. ContentController->execute() /var/www/astarmathsandphysics/components/com_content/content.php:42 0.1617 4109944 9. ContentController->display() /var/www/astarmathsandphysics/libraries/src/MVC/Controller/BaseController.php:710 0.2144 4336736 10. ContentController->display() /var/www/astarmathsandphysics/components/com_content/controller.php:113 0.2160 4354136 11. Joomla\CMS\Cache\Controller\ViewController->get() /var/www/astarmathsandphysics/libraries/src/MVC/Controller/BaseController.php:663 0.2166 4375064 12. ContentViewArticle->display() /var/www/astarmathsandphysics/libraries/src/Cache/Controller/ViewController.php:102 0.2264 4439904 13. Joomla\CMS\Plugin\PluginHelper::importPlugin() /var/www/astarmathsandphysics/components/com_content/views/article/view.html.php:189 0.2264 4440160 14. Joomla\CMS\Plugin\PluginHelper::import() /var/www/astarmathsandphysics/libraries/src/Plugin/PluginHelper.php:182

Thermosetting Plastics

These plastics have very strong bonds between the different chains. This makes it almost impossible for the chains to slide past each other and result in plastics that are both hard and brittle.

thermosetting polymer structure

When heated, the chains do not move and tend to burn and char rather than melt. They are technically referred to as thermosetting plastics. These plastics are stronger than the types with little cross linking and are used where strength is the desirable property, such as in the handles of cooking pots. These plastics require a great deal more effort to recycle.

Examples include bakelite.