ÈÈÏߵ绰
²úÆ·ÐÂÎÅ

»ðÌùÃÞ¾ÛÃѶàÔª´¼ÔÚÉùѧ¸ôÒô²ÄÁϸ´ºÏÖеÄÓ¦ÓüÛÖµ·ÖÎö

»ðÌùÃÞ¾ÛÃѶàÔª´¼ÔÚÉùѧ¸ôÒô²ÄÁϸ´ºÏÖеÄÓ¦ÓüÛÖµ·ÖÎö

×÷ÕߣºÁÖÄ«³¾


Ò»¡¢Ç°ÑÔ£º´Ó¡°¾²¡±ËµÆð

ÔÚÕâ¸ö³µË®ÂíÁú¡¢ÈËÉù¶¦·ÐµÄʱ´ú£¬°²¾²ÒѾ­³ÉÁËÒ»ÖÖÉݳÞ¡£ÎÞÂÛÊdzÇÊн»Í¨µÄºäÃù¡¢¹¤³§³µ¼äµÄ»úеÔËת£¬»¹ÊǾӼÒÉú»îÖÐÂ¥ÉÏÁھӵĽŲ½Éù£¬ÔëÒôÎÞ´¦²»ÔÚ£¬ÈÅÈËÐÄÉñ¡£ÓÚÊÇ£¬¡°¸ôÒô¡±³ÉÁ˽¨Öþ¡¢Æû³µ¡¢¼ÒµçµÈ¶à¸öÐÐÒµ¹²Í¬×·ÇóµÄÄ¿±ê¡£

¶øÔÚÖÚ¶à¸ôÒô²ÄÁÏÖУ¬ÓÐÒ»Àà²ÄÁϽüÄêÀ´Öð½¥Õ¸Â¶Í·½Ç¡ª¡ªÄǾÍÊÇÒÔ¾Û°±õ¥Îª»ù´¡µÄ¸´ºÏ²ÄÁÏ¡£¶øÔÚÕâÆäÖУ¬»ðÌùÃÞ¾ÛÃѶàÔª´¼×÷ΪһÖֹؼüÔ­²ÄÁÏ£¬ÕýÇÄÈ»¸Ä±ä×ÅÉùѧ²ÄÁϵĸñ¾Ö¡£

½ñÌìÎÒÃǾÍÀ´ÁÄÁÄ£¬ÕâÍæÒâ¶ùµ½µ×ÊÇɶ£¿ËüΪɶÄÜÉϵÃÁËÌüÌÃϵÃÁ˳µ¼ä£¿ÓÖΪºÎÄÜÔÚ¸ôÒô½ç»ìµÃ·çÉúË®Æð£¿


¶þ¡¢ÈÏʶ»ðÌùÃÞ¾ÛÃѶàÔª´¼£ºµÍµ÷µ«²»¼òµ¥

Ê×ÏÈ£¬ÎÒÃǵÃÏȸãÇå³þÕâ¸öÞÖ¿ÚµÄÃû×Ö£º¡°»ðÌùÃÞ¾ÛÃѶàÔª´¼¡±¡£

Æäʵ£¬Õâ¸öÃû×Ö¿ÉÒÔ²ð½âһϣº

  • »ðÌùÃÞ£ºÍ¨³£Ö¸µÄÊǾßÓÐ×èȼÐÔÄܵĸÄÐÔ¾Û°±õ¥ÅÝÄ­²ÄÁÏ£¬ÓÃÓÚ¸ôÈÈ¡¢ÎüÒôµÈ³¡¾°£»
  • ¾ÛÃѶàÔª´¼£ºÊǺϳɾ۰±õ¥µÄÖØÒªÔ­ÁÏÖ®Ò»£¬ÊôÓڸ߷Ö×Ó»¯ºÏÎ¾ß±¸Á¼ºÃµÄÈáÈÍÐÔ¡¢ÄÍË®ÐԺͻ¯Ñ§Îȶ¨ÐÔ£»
  • ¸´ºÏʹÓãºÒâζ×ÅËü²»Êǵ¥¶ÀʹÓõ쬶øÊÇ×÷Ϊ»ù²ÄÓëÆäËû²ÄÁϽáºÏ£¬ÐγɾßÓжàÖÖ¹¦ÄܵÄÐÂÐͲÄÁÏ¡£

¼òµ¥À´Ëµ£¬»ðÌùÃÞ¾ÛÃѶàÔª´¼ÊÇÒ»ÖÖ¾­¹ýÌØÊâ´¦ÀíµÄ¾ÛÃÑÐͶàÔª´¼£¬Ö÷ÒªÓÃÓÚÖÆÔì¾ßÓÐ×èȼ¡¢ÎüÒôºÍ±£ÎÂÐÔÄܵĸ´ºÏ²ÄÁÏ¡£

±í1£º³£¼û¾ÛÃѶàÔª´¼Óë»ðÌùÃÞ¾ÛÃѶàÔª´¼»ù±¾²ÎÊý¶Ô±È

²ÎÊýÏî ÆÕͨ¾ÛÃѶàÔª´¼ »ðÌùÃÞ¾ÛÃѶàÔª´¼
¹ÙÄÜ¶È 2¡«3 3¡«4
ôÇÖµ£¨mgkoh/g£© 300¡«500 400¡«600
ð¤¶È£¨25¡æ£¬mpa¡¤s£© 1000¡«3000 2000¡«5000
×èȼµÈ¼¶ Ò»°ã²»×èȼ ´ïµ½ul94 v-0¼¶¼°ÒÔÉÏ
Ãܶȣ¨g/cm?£© 1.02¡«1.10 1.10¡«1.25
ÎüÒôϵÊý£¨1000hz£© 0.4¡«0.6 0.7¡«0.9

´Ó±íÖпÉÒÔ¿´³ö£¬»ðÌùÃÞ¾ÛÃѶàÔª´¼ÔÚ¶àÏîÐÔÄÜÖ¸±êÉÏÓÅÓÚÆÕͨ¾ÛÃѶàÔª´¼£¬ÓÈÆäÊÇÔÚ×èȼÐÔºÍÎüÒôϵÊý·½Ãæ±íÏÖÍ»³ö¡£


Èý¡¢»ðÌùÃÞ¾ÛÃѶàÔª´¼µÄ¡°³¬ÄÜÁ¦¡±£º²»Ö¹ÓÚ¸ôÒô

¼ÈÈ»ËüÊÇÓÃÀ´×ö¸ôÒô²ÄÁϵģ¬ÄÇËüµÄºËÐÄÓÅÊÆµ½µ×ÔÚÄÄÄØ£¿

1. ÎüÒôÐÔÄÜÓÅÔ½

»ðÌùÃÞ¾ÛÃѶàÔª´¼ÖƳɵľ۰±õ¥ÅÝÄ­²ÄÁÏÄÚ²¿½á¹¹¶à¿×ÇÒ¾ùÔÈ£¬ÕâÖÖ΢¹Û½á¹¹·Ç³£ÓÐÀûÓÚÉù²¨µÄÎüÊÕÓëË¥¼õ¡£Éù²¨½øÈë²ÄÁϺó£¬ÔÚÎÞÊý΢С¿×϶ÖÐÀ´»Ø·´É䡢Ħ²Á£¬ÖÕת»¯ÎªÈÈÄÜ£¬´Ó¶øÊµÏÖ½µÔëЧ¹û¡£

2. ×èȼÐÔÄÜÓÅÒì

ÔÚ½¨Öþ¡¢½»Í¨µÈÁìÓò£¬·À»ð°²È«ÖÁ¹ØÖØÒª¡£»ðÌùÃÞ¾ÛÃѶàÔª´¼Í¨¹ýÒýÈë×èȼ»ùÍÅ»òÌí¼Ó×èȼ¼Á£¬Ê¹Æä¾ß±¸³öÉ«µÄ×èȼÐÔÄÜ£¬·ûºÏ¹ú¼Ê±ê×¼Èçiso 3582¡¢astm e84µÈÒªÇó¡£

3. ÇáÖʸßÇ¿

Ïà±È´«Í³¸ôÒô²ÄÁÏÈç¿óÃÞ¡¢²£Á§ÏËά£¬¾Û°±õ¥²ÄÁϸü¼ÓÇá±ã£¬Í¬Ê±±£³Ö½Ï¸ßµÄÇ¿¶ÈºÍµ¯ÐÔ£¬±ãÓÚÔËÊäºÍÊ©¹¤¡£

4. »·±£¿É»ØÊÕ

ÏÖ´ú¾Û°±õ¥²ÄÁÏÔ½À´Ô½×¢ÖØ»·±£ÐÔ£¬»ðÌùÃÞ¾ÛÃѶàÔª´¼¶àÊý²ÉÓÃÉúÎï»ùÔ­ÁÏ»ò¿É»ØÊÕ¹¤ÒÕ£¬¼õÉÙÁ˶Ի·¾³µÄÓ°Ïì¡£

±í2£º²»Í¬¸ôÒô²ÄÁÏÐÔÄܶԱÈ

²ÄÁÏÀàÐÍ ÎüÒôϵÊý ×èȼµÈ¼¶ Ãܶȣ¨g/cm?£© ³É±¾£¨Ïà¶Ô£© ¿É»ØÊÕÐÔ
²£Á§ÏËά 0.5¡«0.7 b2 0.03¡«0.05 ÖÐ µÍ
¿óÃÞ 0.6¡«0.8 a¼¶ 0.04¡«0.08 µÍ ÖÐ
¾Û°±õ¥ÅÝÄ­ 0.7¡«0.9 v-0 0.03¡«0.06 ¸ß ¸ß
»ðÌùÃÞ¾ÛÃѶàÔª´¼ 0.8¡«0.95 ul94 v-0 0.04¡«0.07 ½Ï¸ß ¸ß

´Ó±íÖпÉÒÔ¿´³ö£¬»ðÌùÃÞ¾ÛÃѶàÔª´¼ÔÚ¶à¸öά¶ÈÉ϶¼Õ¹ÏÖ³öÃ÷ÏÔÓÅÊÆ£¬ÓÈÆäÊʺϸ߶ËÉùѧ¹¤³ÌÐèÇó¡£


ËÄ¡¢Ó¦Óó¡¾°£º´ÓÆû³µµ½¿ÍÌü£¬ÎÞËù²»ÔÚ

ÄÇô£¬ÕâÖÖ²ÄÁϾ¿¾¹ÓÃÔÚÄÄЩµØ·½ÄØ£¿±ð¼±£¬ÎÒÕâ¾Í¸øÄãÒ»Ò»ÁоÙ¡£

1. Æû³µÐÐÒµ£º³µÄÚ¾²ÒôµÄÃØÃÜÎäÆ÷

Ëæ×ÅÏû·ÑÕ߶ԼݳËÊæÊÊÐÔµÄÒªÇóÔ½À´Ô½¸ß£¬Æû³µÖÆÔìÉÌ¿ªÊ¼ÖØÊÓ³µÄÚÔëÒô¿ØÖÆ¡£»ðÌùÃÞ¾ÛÃѶàÔª´¼±»¹ã·ºÓ¦ÓÃÓÚ³µÃÅ¡¢¶¥Åï¡¢µØ°åµæ²ãµÈ²¿Î»£¬ÓÐЧ½µµÍ·çÔ롢·ÔëºÍ·¢¶¯»úÔëÉù¡£

2. ½¨ÖþÁìÓò£º´òÔì¡°»áºôÎü¡±µÄǽÌå

ÔÚסլºÍÉÌÒµ½¨ÖþÖУ¬Ê¹ÓûðÌùÃÞ¾ÛÃѶàÔª´¼ÖƳɵĸ´ºÏ°å£¬²»½öÆðµ½¸ôÈÈ×÷Ó㬻¹ÄÜÎüÊÕÊÒÄÚ»ØÉù£¬ÌáÉý¿Õ¼äÒôÖÊ¡£ÓÈÆäÊÊÓÃÓÚ¼ÒôÅï¡¢»áÒéÊÒ¡¢Ó°¾çÔºµÈ¶ÔÉùÒôÖÊÁ¿ÒªÇó¸ßµÄ³¡Ëù¡£

3. ¼Òµç²úÆ·£ºÈÃÏ´Ò»úҲѧ»á¡°ÇÄÇÄ˵»°¡±

ÄãÓÐûÓз¢ÏÖ£¬ÏÖÔÚµÄÏ´Ò»ú¡¢¿Õµ÷¡¢±ùÏäÔ½À´Ô½°²¾²ÁË£¿Ã»´í£¬ºÜ¶à³§¼ÒÒѾ­¿ªÊ¼½«ÕâÀà²ÄÁÏÓÃÓÚÉ豸Íâ¿ÇÄڳ쬼õÉÙÕ𶯺͹²Õñ´øÀ´µÄÔëÒô¡£

4. ¹ìµÀ½»Í¨£ºµØÌú³µÏáÀïµÄ¡°ÎÂÈáÏ硱

¸ßËÙÁгµ¡¢µØÌú³µÏáÄÚ²¿´óÁ¿Ê¹Óþ۰±õ¥¸ôÒô²ÄÁÏ£¬Ê¹µÃ³Ë¿Í¼´Ê¹ÔڷɳÛÖÐÒ²ÄÜÏíÊÜÄþ¾²ÂóÌ¡£

4. ¹ìµÀ½»Í¨£ºµØÌú³µÏáÀïµÄ¡°ÎÂÈáÏ硱

¸ßËÙÁгµ¡¢µØÌú³µÏáÄÚ²¿´óÁ¿Ê¹Óþ۰±õ¥¸ôÒô²ÄÁÏ£¬Ê¹µÃ³Ë¿Í¼´Ê¹ÔڷɳÛÖÐÒ²ÄÜÏíÊÜÄþ¾²ÂóÌ¡£


Îå¡¢Éú²ú¹¤ÒÕÓë¼¼ÊõÒªµã£º²»Ö»ÊÇÅä·½ÄÇô¼òµ¥

ËäÈ»ÌýÆðÀ´ÏñÊǰѼ¸ÖÖ²ÄÁÏÒ»½ÁºÏ¾ÍÍêÊ£¬µ«Êµ¼ÊÉú²ú¹ý³ÌÖÐÉæ¼°µÄ¼¼Êõϸ½ÚÏ൱¸´ÔÓ¡£

1. ·¢Åݹ¤ÒÕ£º¿ØÖÆÆø¿×´óСÊǹؼü

»ðÌùÃÞ¾ÛÃѶàÔª´¼Í¨³£ÓëÒìÇèËáõ¥·´Ó¦Éú³É¾Û°±õ¥ÅÝÄ­£¬·¢Åݹý³Ì¾ö¶¨Á˲ÄÁϵÄÃܶȺÍÎüÒôÐÔÄÜ¡£Í¨¹ýµ÷½Ú´ß»¯¼ÁÖÖÀàºÍÓÃÁ¿£¬¿ÉÒÔ¾«È·¿ØÖÆÆø¿×½á¹¹¡£

2. ±íÃæ´¦Àí£ºÔöÇ¿¸½×ÅÁ¦ÓëÎȶ¨ÐÔ

ΪÁËÌá¸ß²ÄÁÏÓëÆäËû¹¹¼þµÄÕ³½ÓÐÔÄÜ£¬³£³£ÐèÒª½øÐбíÃæÅçÍ¿¡¢Í¿¸²»òÑ¹ÎÆ´¦Àí¡£

3. ×èȼ¸ÄÐÔ£º²»ÊǼӵã×èȼ¼Á¾ÍÄܸ㶨

ÕæÕýµÄ×èȼÐÔÄÜÐèÒª´Ó·Ö×ӽṹ²ãÃæÈëÊÖ£¬ÀýÈçÒýÈëÁ×ϵ¡¢Â±ËØÏµ»ò½ðÊôÇâÑõ»¯ÎïµÈ×èÈ¼ÔªËØ£¬²¢È·±£ÆäÔÚ¸ßÎÂÏÂÎȶ¨ÊÍ·Å¡£


Áù¡¢Êг¡ÏÖ×´ÓëδÀ´Ç÷ÊÆ£ºË­Ö÷³Á¸¡£¿

Ŀǰ£¬È«Çò·¶Î§ÄÚ¾Û°±õ¥¸ôÒô²ÄÁÏÊг¡Õý´¦ÓÚ¿ìËÙÔö³¤ÆÚ¡£¾Ýgrand view researchÊý¾ÝÏÔʾ£¬2023ÄêÈ«Çò¾Û°±õ¥¸ôÒô²ÄÁÏÊг¡¹æÄ£Òѳ¬¹ý50ÒÚÃÀÔª£¬Ô¤¼Æµ½2030Ä꽫´ïµ½80ÒÚÃÀÔªÒÔÉÏ£¬Äê¾ùÔö³¤ÂÊԼΪ7%¡£

ÔÚÖйú£¬ÓÉÓÚÕþ²ßÍÆ¶¯ºÍÏû·ÑÉý¼¶£¬½¨Öþ¡¢Æû³µµÈÐÐÒµ¶Ô¸ßÐÔÄܸôÒô²ÄÁϵÄÐèÇó³ÖÐøÉÏÉý¡£»ðÌùÃÞ¾ÛÃѶàÔª´¼ÒòÆä×ÛºÏÐÔÄÜÓÅÒ죬³ÉΪ¸÷´ó³§ÉÌÕùÏàÑз¢µÄÖØµã·½Ïò¡£

±í3£º2023ÄêÖйú¾Û°±õ¥¸ôÒô²ÄÁÏÖ÷ÒªÓ¦ÓÃÁìÓòÕ¼±È

Ó¦ÓÃÁìÓò Õ¼±È£¨%£©
Æû³µ 35%
½¨Öþ 28%
¼Òµç 15%
¹ìµÀ½»Í¨ 10%
ÆäËû 12%

δÀ´¼¸Äê£¬Ëæ×ÅÖÇÄܽ¨Ôì¡¢ÐÂÄÜÔ´Æû³µºÍÂÌÉ«¼Ò¾ÓµÄ·¢Õ¹£¬»ðÌùÃÞ¾ÛÃѶàÔª´¼µÄÓ¦Óý«½øÒ»²½ÍØÕ¹£¬ÌرðÊÇÔÚ»·±£ÐͲÄÁϺͶ๦Äܸ´ºÏ²ÄÁÏÁìÓò´óÓпÉΪ¡£


Æß¡¢½áÓ¾²ÏÂÀ´£¬ÌýÌýÕâ¸öÊÀ½çµÄÉùÒô

»ðÌùÃÞ¾ÛÃѶàÔª´¼£¬»òÐí²»ÊÇÒ»¸öÏìÁÁµÄÃû×Ö£¬µ«ËüÈ´ÔÚÄ¬Ä¬ÊØ»¤×ÅÎÒÃǵݲ¾²Éú»î¡£ËüûÓлªÀöµÄÍâ±í£¬Ò²Ã»ÓÐÐúÏùµÄ¹ã¸æ£¬Ö»ÊǾ²¾²µØ´æÔÚÓÚÎÒÃÇÉú»îµÄÿһ¸ö½ÇÂ䣬ΪÎÒÃǸô¿ªÐúÏù£¬ÁôסÄþ¾²¡£

ÕýÈçһλµÂ¹ú¹¤³ÌÊ¦ÔøËµ£º¡°ºÃµÄ¸ôÒô£¬ÊÇÄã¸ù±¾Ìý²»µ½ËüÔÚ¹¤×÷¡£¡±

δÀ´µÄ²ÄÁÏ¿ÆÑ§£¬²»½öÒª½â¾ö¡°Äܲ»ÄÜ¡±£¬¸üҪ˼¿¼¡°ºÃ²»ºÃ¡±¡£»ðÌùÃÞ¾ÛÃѶàÔª´¼ÕýÊÇÕâÑùÒ»ÖÖ¼ÈʵÓÃÓÖÎÂÈáµÄ´æÔÚ£¬Ëü¸æËßÎÒÃÇ£º¿Æ¼¼£¬Ò²¿ÉÒÔºÜÎÂů¡£


²Î¿¼ÎÄÏ×£º

[1] zhang, y., liu, h., & wang, x. (2021). sound absorption properties of polyurethane foams modified with flame retardants. journal of applied polymer science, 138(15), 50123¨C50132.

[2] kim, j., park, s., & lee, k. (2020). development of sound insulation materials using bio-based polyols for automotive applications. polymer engineering & science, 60(4), 887¨C895.

[3] chen, l., zhao, m., & sun, q. (2022). fire-retardant and acoustic performance of polyether polyol composites in building materials. construction and building materials, 335, 127498.

[4] iso 3582:2003 ¨C acoustics ¡ª test method for measuring the sound absorption coefficient of road surfaces.

[5] astm e84 ¨C standard test method for surface burning characteristics of building materials.

[6] grand view research. (2023). polyurethane sound insulation market size report. retrieved from https://www.grandviewresearch.com

[7] ÖйúËÜÁϼӹ¤¹¤ÒµÐ­»á. (2022). ¡¶Öйú¾Û°±õ¥ÐÐÒµ·¢Õ¹±¨¸æ¡·. ±±¾©£ºÖйúʯ»¯³ö°æÉç.


Èç¹ûÄã¾õµÃÕâÆªÎÄÕÂÓеãÒâ˼£¬²»·Á°ÑËü·ÖÏí¸øÉí±ßÕýÔÚ×°ÐÞµÄÅóÓÑ£¬»òÕßÄǸö×ܱ§Ô¹¼ÒÀïÌ«³³µÄͬÊ¡ª¡ªÒ²Ðí£¬ËûÃÇÕýÐèÒªÕâ·ÝÀ´×Ô¡°»ðÌùÃÞ¾ÛÃѶàÔª´¼¡±µÄÎÂÈá¡£

====================ÁªÏµÐÅÏ¢=====================

ÁªÏµÈË£º Îâ¾­Àí

ÊÖ»úºÅÂ룺 18301903156 (΢ÐÅͬºÅ)

ÁªÏµµç»°£º 021-51691811

¹«Ë¾µØÖ·: ÉϺ£Êб¦É½ÇøäÁÐËÎ÷·258ºÅ

===========================================================

¹«Ë¾ÆäËü²úƷչʾ:

  • nt cat t-12 ÊÊÓÃÓÚÊÒι̻¯Óлú¹èÌåϵ£¬¿ìËٹ̻¯¡£

  • nt cat ul1 ÊÊÓÃÓÚÓлú¹èÌåϵºÍ¹èÍé¸ÄÐÔ¾ÛºÏÎïÌåϵ£¬Öеȴ߻¯»îÐÔ£¬»îÐÔÂÔµÍÓÚt-12¡£

  • nt cat ul22 ÊÊÓÃÓÚÓлú¹èÌåϵºÍ¹èÍé¸ÄÐÔ¾ÛºÏÎïÌåϵ£¬»îÐÔ±Èt-12¸ß£¬ÓÅÒìµÄÄÍË®½âÐÔÄÜ¡£

  • nt cat ul28 ÊÊÓÃÓÚÓлú¹èÌåϵºÍ¹èÍé¸ÄÐÔ¾ÛºÏÎïÌåϵ£¬¸ÃϵÁд߻¯¼ÁÖлîÐԸߣ¬³£ÓÃÓÚÌæ´út-12¡£

  • nt cat ul30 ÊÊÓÃÓÚÓлú¹èÌåϵºÍ¹èÍé¸ÄÐÔ¾ÛºÏÎïÌåϵ£¬Öеȴ߻¯»îÐÔ¡£

  • nt cat ul50 ÊÊÓÃÓÚÓлú¹èÌåϵºÍ¹èÍé¸ÄÐÔ¾ÛºÏÎïÌåϵ£¬Öеȴ߻¯»îÐÔ¡£

  • nt cat ul54 ÊÊÓÃÓÚÓлú¹èÌåϵºÍ¹èÍé¸ÄÐÔ¾ÛºÏÎïÌåϵ£¬Öеȴ߻¯»îÐÔ£¬ÄÍË®½âÐÔÁ¼ºÃ¡£

  • nt cat si220 ÊÊÓÃÓÚÓлú¹èÌåϵºÍ¹èÍé¸ÄÐÔ¾ÛºÏÎïÌåϵ£¬ÌرðÍÆ¼öÓÃÓÚms½º£¬»îÐÔ±Èt-12¸ß¡£

  • nt cat mb20 ÊÊÓÃÓлúîéÀà´ß»¯¼Á£¬¿ÉÓÃÓÚÓлú¹èÌåϵºÍ¹èÍé¸ÄÐÔ¾ÛºÏÎïÌåϵ£¬»îÐԽϵͣ¬Âú×ã¸÷Àà»·±£·¨¹æÒªÇó¡£

  • nt cat dbu ÊÊÓÃÓлú°·Àà´ß»¯¼Á£¬¿ÉÓÃÓÚÊÒÎÂÁò»¯¹èÏ𽺣¬Âú×ã¸÷Àà»·±£·¨¹æÒªÇó¡£

ÉÏһƪ£º
ÏÂһƪ£º
¡¾ÍøÕ¾µØÍ¼¡¿¡¾sitemap¡¿