But it is easy to aging in the air, the heat variable viscosity, easy expansion in mineral oil or gasoline and dissolved, but not resistant to acid alkali.

但在空气中易老化，遇热变黏，在矿物油或汽油中易膨胀和溶解，耐碱但不耐强酸。

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Acid and alkali resistance, corrosion resistance, no crack, no loss, high stability, no aging problems, and the building wall with life.

耐酸碱、耐腐蚀、不开裂、不脱落、稳定性高，不存在老化问题，与建筑墙体同寿命。

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The effect of boron to silica molar ratio, basicity, alkali cations, seeds, aging and reaction time on the crystallization was investigated.

考察了凝胶硅硼比、碱度、碱金属离子、添加晶种、老化时间和晶化时间对晶化产物的影响。

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