Si/Ti composite sol and application thereof
A composite sol, titanium sol technology, applied in textiles, papermaking, fiber processing, etc., can solve the problems of high concentration of sol finishing solution, high baking temperature, yellowing of fabrics, etc., and achieves low baking conditions and low baking temperature. , the effect of reducing damage
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Embodiment 1
[0033] (1) Preparation of silicone sol 50.7g gamma-glycidyl ether propyl trimethoxysilane was added to 44.2g ethanol solution, water was added and the pH value was adjusted to 3-4 (adjusted by hydrochloric acid), stirred at room temperature for two hours to obtain a transparent of silicone sol.
[0034] (2) Anti-felting finishing of wool
[0035] Add 100g water to 90g organosilicon sol, stir well as finishing solution 1, and 190g organosilicon sol as finishing solution 2; put 100% undyed natural-color wool off-machine gabardine fabric in the above two finishing solutions respectively, twice dipping and rolling, pressure 1kg / cm 2 , pre-baked in an oven at 80°C, and finally baked at 200°C for 3 minutes.
[0036] (3) Test of anti-felting finishing
[0037] Refer to GB8628-88, GB8629-88, AATCC TM135-2000 and IWS TM NO.31 test standards and methods, use Wascator FQM71CLS washing machine with 3×5A program to wash and dry, measure and calculate the warp and weft felt shrinkage of...
Embodiment 2
[0041] (1) Composite 13g ethanol, 10.2g tetra-n-butyl titanate and 3.6 glacial acetic acid, stir with a magnetic stirrer for 2 hours to obtain composite solution A, and stir the composite solution of 2.2g water, 0.3g hydrochloric acid and 13g ethanol for 10min to obtain composite Solution B, then slowly drop composite solution B into composite solution A under stirring at room temperature, then add 12g PEG (molecular weight is 400), after the addition is completed, use pH test paper to measure the pH of the composite solution to be about 3.5, and continue to stir for 1 hour. The sol was aged for 24h to obtain a yellow and transparent TiO2 alcohol sol.
[0042] (2) Preparation of composite sol
[0043] 120930% silica sol and 39.6gTiO 2 The sol was compounded with 20.4 g of water, and stirred for 30 minutes until the compound was uniform to obtain a compound sol.
[0044] Then the composite sol was used to process the fabric according to the process flow, washed and dried, and...
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