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| The poor chemical affinity between calcite and the silica molecules formed after hydrolysis and condensation of alkoxysilanes and the tendency to crack during shrinkage and drying due to the gel brittleness have been responsible for several studies with the objective of modifying and improving alkoxysilane performance. |
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RXMCDM
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2Â¥2014-02-11 23:17:49
mac194
Ìú³æ (Ö°Òµ×÷¼Ò)
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RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-02-12 18:27:10
xfgzju(RXMCDM´ú·¢): ½ð±Ò+7, ¶àлӦÖú£¡ 2014-03-15 22:35:36
RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-02-12 18:27:10
xfgzju(RXMCDM´ú·¢): ½ð±Ò+7, ¶àлӦÖú£¡ 2014-03-15 22:35:36
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(¸Ðл½±ÉÍ) Áí¼û https://muchong.com/bbs/viewthread.php?tid=6954761 ͬһ¾ä×ӵĵڶþÖÖд·¨ Going beyond the macroscopic - shrinkage, drying, gel weakness, etc - several recent studies point to weak calcite-silica bonding formed during hydrolysis and condensation as the root cause of alkoxysilane cracking. [Wheeler 2005] "..., etc" ¿´À´ËæÒâ,µ«ÃâÓÃÒ» "and" "alkoxysilanes" Ò²Ö»ÓÃÁËÒ»´Î Alkoxysilanes and the Consolidation of Stone page34.jpg |
3Â¥2014-02-12 05:24:38
phu_grassman
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4Â¥2014-02-12 08:43:43
befair
Ìú¸Ëľ³æ (ÕýʽдÊÖ)
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¡¾´ð°¸¡¿Ó¦Öú»ØÌû
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RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-02-12 18:27:38
xfgzju(RXMCDM´ú·¢): ½ð±Ò+7, ¶àлӦÖú£¡ 2014-03-15 22:35:07
RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-02-12 18:27:38
xfgzju(RXMCDM´ú·¢): ½ð±Ò+7, ¶àлӦÖú£¡ 2014-03-15 22:35:07
|
·ÖÎöһϣº 1. Ö÷Òª¾äÐÍÊÇ£º The poor chemical affinity between A and B + ¶¯´ÊνÓ ÔÒëÎÄÓà have been responsible for several studies with the objective of..£¬µÄÈ·ÒâÒåÉϲ»´óͨ£¬ Èç4Â¥Ö¸³öµÄ¡£¿ÉÄÜÔÒâÊÇÏë˵ÀàËÆÓÚ¡°has been subject for several studies with the objective of... ¡±. ÁíÍâaffinity ÒªÇ󶯴ÊÊǵ¥ÊýµÄ£¬have been ²»Í× 2. ÄÇôA ÊÇʲô£¬ BÓÖÊÇʲô£¿ Èç¹û˵A=calcite£¬ B=the silica molecules formed after hydrolysis and condensation of alkoxysilanes£¬ ÄÇô and the tendency to crack during shrinkage and drying due to the gel brittleness ºÍËÁªÏµÆðÀ´ÄØ£¿»òÕߣ¬Èç¹ûA= calcite and the silica molecules formed after hydrolysis and condensation of alkoxysilanes¡£¡£¡££¬ B=the tendency to crack during shrinkage and drying due to the gel brittleness, »á¸üºÏÀíЩ£¿ ÔÚϲ»ÊÇÕâ¸öרҵµÄ£¬µ«Â¥Ö÷Ó¦¸Ã´ÓÂß¼ÉÏÄÜÈ·¶¨ ÏȰÑÂß¼¸ãÇå³þ£¬ÔٰѾä×ÓÖØÐÂ×é֯ϣ¬½¨ÒéÓÃ϶ººÅ£¨ÓÃwhich ´Ó¾äÒ²ÐУ¬µ«¾õµÃ»á¸üÂÞࣩ£¬±ÈÈ磺 The poor chemical affinity between calcite and the silica molecules£¬ formed after hydrolysis and condensation of alkoxysilanes, and the tendency to crack, during shrinkage and drying due to the gel brittleness, has been the subject of .... ¹©²Î¿¼ |

5Â¥2014-02-12 10:00:13














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