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Çë´ó¼Ò°ïæÐ޸ģ¡ ÖÐÓ¢ÎĶÔÕÕÈçÏ£¬ÒÔÖÐÎÄÕÂΪ²Î¿¼£¡Ó¢ÎĸоõдµÄ²»ºÃ£¡Ð»Ð»£¡ÔÚÏߵȣ¡ ËäÈ»PDAÐ;ù¾Ûõ£Ñǰ·PI±¡Ä¤µÄÀÉìÇ¿¶È£¨257.86 Mpa£©ºÍÄ£Á¿£¨2.20 Gpa£©·Ö±ðÊÇCDAÐ;ù¾Û¾Ûõ£Ñǰ·PI±¡Ä¤µÄ2.4±¶ºÍ1.6±¶£¬µ«ÊÇ£¬ÆäÑÓÉìÂÊÈ´±ÈCDAÐ;ù¾Û¾Ûõ£Ñǰ·PI1±¡Ä¤ÒªÐ¡£¬¶ø¹²¾ÛÎﱡĤÔòºÜºÃµØ×ÛºÏÁËÁ½ÖÖ¾ù¾ÛÎïµÄ»úеÐÔÄÜÓŵ㡣 The elongation value of PDA-type homo-PI film was lower than that of CDA-type one, whereas the tensile strength, 257.86 MPa, and modulus, 2.20 GPa were 2.4 and 1.6 times as those of ODA-type one, respectively.¡£¡£¡£¡£¡£¡£ [ Last edited by yongbinz on 2010-11-8 at 21:56 ] |
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petrocatal
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yongbinz(½ð±Ò+10, ·ÒëEPI+1):ллÄúµÄ°ïÖú£¡ 2010-11-10 12:37:34
yongbinz(½ð±Ò+10):лл£¡ 2010-11-18 20:04:27
yongbinz(½ð±Ò+10):лл£¡ 2010-11-18 20:04:27
| Although the tensile strength (257.86 Mpa) and modulus (2.20 GPa) of the PDA-type homo-PI film are 2.4 and 1.6 times of those of the CDA-type one, respectively,the elongation value of the former is lower than that of the later. Furthermore, the copolymer film of PDA and CDA could integrate the excellent mechanical properties of those homo-polymers. |
4Â¥2010-11-10 08:59:46
slb8128
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2Â¥2010-11-08 22:03:44
yhzhu75
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yongbinz(½ð±Ò+10):ллÄúµÄ°ïÖú£¡ 2010-11-10 12:37:56
| Although the tensile strength (257.86 Mpa) and modulus (2.20 GPa) of the PDA-type homo-PI film are 2.4 and 1.6 times of those of the CDA-type one, respectively, its elongation value is lower than that of the CDA-type one. While the copolymer film well integrates the advantages of the two types of homopolyer in mechanical Properties . |
3Â¥2010-11-08 22:28:22









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