A kind of lac waste slag glue chain extension modified powder and preparation method thereof
A technology of modified powder and slag glue, which is applied in the field of chain extension modified powder and its preparation, which can solve the problems of chain extender toxicity and inappropriate chain extension modification, and achieve low reaction temperature, good mechanical strength and biodegradation The effect of sex and simple process
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Embodiment 1
[0025] Embodiment 1: The chain extension modified powder composition of the lac waste slag is: dehydrated lac waste slag 100g, triglycidyl isocyanurate (TGIC) 5g;
[0026] The preparation method of the above-mentioned modified powder: heat the waste lac residue at 80°C for 12 hours in a vacuum to remove the moisture in the waste lac residue to obtain the waste lac residue; take 100g of the waste lac residue and add it to the grinding 5 g of the chain extender TGIC into a fine powder, stirred and mixed for 15 minutes to obtain a liquid mixture; it was placed in a 100°C oven and heated for 6 hours to carry out the chain extension reaction, and the chain extension modified product of shellac waste slag was obtained; After being pulverized, passing through a 100-mesh sieve, the shellac waste slag rubber chain extension modified powder is obtained.
Embodiment 2
[0027] Example 2: The composition of the chain-extended modified powder of lac waste slag is: 100 g of dehydrated lac waste slag, 13 g of triglycidyl isocyanurate (TGIC);
[0028] The preparation method of the above-mentioned modified powder: heat the waste lac residue at 80°C for 12 hours in a vacuum to remove water to obtain the waste lac residue; take 100g of the waste lac residue and add a chain extender that is ground into a fine powder TGIC 13g, stirred and mixed for 15 minutes to obtain a liquid mixture, which was heated in an oven at 120°C for 2 hours to carry out chain extension reaction to obtain a chain extension modified product of shellac waste slag, which was pulverized by a tissue grinder and passed through a 100-mesh sieve. That is, the chain-extended modified powder of shellac waste slag is obtained.
Embodiment 3
[0029] Example 3: The chain-extended modified powder composition of the shellac waste residue is: dehydrated shellac waste residue 100g, triglycidyl isocyanurate (TGIC) 8g;
[0030] The preparation method of the above-mentioned modified powder: heat the waste lac residue at 75°C for 12 hours in a vacuum to remove the moisture in the waste lac residue to obtain the waste lac residue; take 100g of the waste lac residue and add it to the grinding 8g of chain extender TGIC into a fine powder, stirred and mixed for 15min to obtain a liquid mixture; put it in an oven at 110°C for 4h to carry out chain extension reaction, and obtain shellac waste slag glue chain extension modified product; Pass through a 100-mesh sieve after pulverization to obtain the modified shellac waste slag glue chain extension powder ( figure 1 , 2 ).
[0031] From figure 2 It can be seen that the lac particles have its typical purple-red particle characteristics ( figure 2 A), but the remaining lac wast...
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