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Handbook of Polymer Foams ¾ÛºÏÎïÅÝÄÊÖ²á ÏÂÔØµØÖ·£ºhttps://www.zhisci.com/pdfshow/17922 Author£ºEaves, David The use of polymer foams is extremely widespread. Indeed, it is difficult to think of a single industry where polymer foams do not have a significant application. They can be found for example in sports and leisure products, in military applications, in vehicles, in aircraft, and in the home. Most people will encounter polymer foams every day in one form or another, whether it be in furniture, in packaging, in their car, in refrigerator insulation, or in some other common application. ¾ÛºÏÎïÅÝĵÄÓ¦Ó÷dz£¹ã·º¡£ÊÂʵÉÏ£¬ºÜÄÑÏëÏóÒ»¸öµ¥Ò»ÐÐÒµÖоۺÏÎïÅÝÄûÓÐÏÔÖøµÄÓ¦Óá£ÀýÈ磬ËüÃÇ¿ÉÒÔÔÚÔ˶¯ºÍÐÝÏвúÆ·¡¢¾üÊÂÓ¦ÓᢳµÁ¾¡¢·É»úºÍ¼ÒÍ¥ÖÐÕÒµ½¡£´ó¶àÊýÈËÿÌì¶¼»áÓöµ½Ò»ÖÖ»òÁíÒ»ÖÖÐÎʽµÄ¾ÛºÏÎïÅÝÄ£¬ÎÞÂÛÊÇÔڼҾߡ¢°ü×°¡¢Æû³µ¡¢±ùÏä¾øÔµ²ÄÁÏÖУ¬»¹ÊÇÔÚÆäËûһЩ³£¼ûµÄÓ¦ÓÃÖС£ Although naturally occurring polymer foams have been known for a long time, (e.g., sponges, cork), synthetic polymer foams have only been introduced to the market over the last fifty years or so. The development of a new polymer has usually been quickly followed by its production in an expanded or foam form owing to the unique and useful properties which can be realised in the expanded state. ËäÈ»ÌìÈ»Éú³ÉµÄ¾ÛºÏÎïÅÝÄ£¨È纣Ãà¡¢Èíľ£©ÔçÒÑΪÈËËùÖª£¬µ«ºÏ³É¾ÛºÏÎïÅÝÄÖ±µ½½üÎåÊ®Äê²Å±»ÒýÈëÊг¡¡£Ò»ÖÖоۺÏÎïµÄ¿ª·¢Í¨³£ºÜ¿ì¾Í»áÒÔÅòÕÍ»òÅÝĵÄÐÎʽÉú²ú³öÀ´£¬ÕâÊÇÓÉÓÚÔÚÅòÕÍ״̬Ï¿ÉÒÔʵÏֵĶÀÌØºÍÓÐÓõÄÌØÐÔ¡£ Compressibility, thermal insulation and, of course, low density/lightness are all enhanced in a foam as compared with the original polymer. Such properties can be tailored to meet particular requirements and can increase substantially the potential applications of a polymer. Foaming technology and the properties of expanded materials should therefore be of interest to all those working in the polymer industry. ÓëÔ¾ÛºÏÎïÏà±È£¬ÅÝÄËÜÁϵÄѹËõÐÔ¡¢¸ôÈÈÐÔÒÔ¼°µÍÃܶÈ/ÇáÁ¿»¯¶¼µÃµ½ÁËÔöÇ¿¡£ÕâЩÐÔÖÊ¿ÉÒÔ±»¶¨ÖÆÒÔÂú×ãÌØ¶¨µÄÒªÇ󣬲¢ÇÒ¿ÉÒÔ´ó´óÔö¼Ó¾ÛºÏÎïµÄDZÔÚÓ¦Óá£Òò´Ë£¬·¢Åݼ¼ÊõºÍÅòÕͲÄÁϵÄÐÔÄÜÓ¦¸ÃÊÇËùÓдÓʾۺÏÎ﹤ҵµÄÈ˸ÐÐËȤµÄ¡£ |
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