A kind of ANF reinforced HEC film composite material and preparation method thereof
A film composite material and solution technology, which is applied in the field of HEC film composite materials and its preparation, can solve the problems of weak mechanical properties of HEC film, poor thermal stability and hydrophobicity of HEC film composite materials, and achieve enhanced mechanical properties and improved hydrophobicity , the effect of reducing the degree of branching
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[0027] The invention provides a preparation method of an ANF-reinforced HEC thin film composite material, comprising the following steps:
[0028] Step 1. Mix hydroxyethyl cellulose and deionized water, let stand for 1-12h, stir for 1-5h, and the stirring speed is 300-500r / min to obtain hydroxyethyl cellulose with a mass concentration of 1%-3% cellulose solution;
[0029] Mixing the nano-para-aramid fiber with deionized water, stirring for 1-5h, the stirring rate is 300-500r / min, to obtain a nano-para-aramid fiber solution with a mass concentration of 0.1-0.3;
[0030] Step 2. Add glutaraldehyde to the nano-para-aramid fiber solution, stir for 1-5 h, and stir at a rate of 300-500 r / min to obtain a mixed system A; wherein, glutaraldehyde and nano-para-aramid fiber solution The mass ratio of (0.1-0.3): (100-300);
[0031] Step 3. Mix the mixing system A with the hydroxyethylcellulose solution, stir for 1-3h, the stirring rate is 300-500r / min, and ultrasonically degas for 0.5-1...
Embodiment 1
[0035] The preparation method of a kind of ANF-enhanced HEC thin film composite material described in embodiment 1, comprises the following steps:
[0036] Step 1. Mix hydroxyethyl cellulose and deionized water, let stand for 1 hour, and stir for 1 hour, and the stirring speed is 300 r / min to obtain a hydroxyethyl cellulose solution with a mass concentration of 1%;
[0037] Step 2, mixing the nano-para-aramid fiber with deionized water, stirring for 1 hour, the stirring rate is 300r / min, and preparing a solution of nano-para-aramid fiber with a mass concentration of 0.1%;
[0038] Step 3. Add 0.1 g of glutaraldehyde crosslinking agent to 100 g of the nano-para-aramid fiber solution prepared in step 2, and stir for 1 h at a stirring rate of 300 r / min to obtain a mixed system A;
[0039] Step 4. Mix 10 g of the mixing system A in step 3 with 100 g of the hydroxyethyl cellulose solution in step 1, stir for 1 h, and the stirring rate is 300 r / min; ultrasonically degas for 0.5 h to...
Embodiment 2
[0044] The preparation method of a kind of ANF reinforced HEC thin film composite material described in embodiment 2, comprises the following steps:
[0045] Step 1. Mix hydroxyethyl cellulose and deionized water, let stand for 5 hours, and stir for 3 hours, and the stirring speed is 400 r / min to obtain a hydroxyethyl cellulose solution with a mass concentration of 1%;
[0046] Step 2, mixing the nano-para-aramid fiber with deionized water, stirring for 3 hours, the stirring speed is 400r / min, and preparing a solution of nano-para-aramid fiber with a mass concentration of 0.2%;
[0047]Step 3, adding 0.2 g of glutaraldehyde cross-linking agent to 200 g of the nano-para-aramid fiber solution prepared in step 2, stirring for 3 hours at a stirring rate of 400 r / min, to obtain a mixed system A;
[0048] Step 4. Mix 15 g of the mixing system A in step 3 with 200 g of the hydroxyethyl cellulose solution in step 1, stir for 3 h, and the stirring rate is 400 r / min; ultrasonically dega...
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