mma test 中文意思是什麼
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For many experiments, using high pureness mma, controlling polymerization temperature and polymerizing condition under high - pressure nitrogen gas and heat treatment after polymerization, a transparent preform without any bubble and blemishes was prepared. then drawing this preform, gi - pof with diameter 0. 8 - 1. 0mm was obtained. because of the limitation of the experimental conditions and the shortage of the money, it is very regretted that we ca n ' t test the index profile and the loss of the gi - pof accurately
在系統研究界面凝膠法原理和聚合機理的基礎上，通過多次實驗總結、改進，在制備過程中採用提高精餾效率、控制溫度、加壓聚合、氮氣保護和後期處理等措施，制備出無氣泡及銀紋缺陷、光潔、透明的光纖預制棒，拉絲得到直徑0 . 8 - 1 . 0mm的gi - pof 。 -
Soap - free polymerization method means monomers ( mma ) polymerize around the surface of nano - silica without soup, absorbed by the force of surface. by the means of tem and potential test, the improvement of dispersal of nano - silica has been proved : particle size of aggregates decreased from 120 - 200nm to 80nm
無皂乳液聚合法是在無乳化劑存在的環境中，利用納米二氧化硅表面的吸附力，單體（ mma ）在其表面進行聚合，包裹納米二氧化硅表面，改善界面狀況。
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