A kind of nylon 6 in-situ colored slice and its preparation method
A nylon and in-situ technology, which is applied in the field of in-situ polymerization nylon 6 coloring chips and its preparation, can solve the problems of short mixing time of color masterbatch and resin, degradation of fiber physical properties, unstable dispersant, etc., and achieve improved physical and chemical properties , Simple processing, no effect of dispersant
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Embodiment 1
[0035] This embodiment provides a nano-scale color paste for in-situ coloring of polyamide fibers, the steps are as follows:
[0036] In terms of parts by mass, mix 85 parts of deionized water and 0.1 part of 37% concentrated hydrochloric acid, add them together into the grinding barrel, stir and mix at a low speed and heat up to 45°C. Slowly add 1 part of sodium p-aminobenzenesulfonate powder to the mixed solution, stir and disperse at 800 RPM for half an hour until completely dissolved, then add 0.4 parts of sodium nitrite and 5 parts of carbon black at the same time. Then disperse and stir at high speed for 2-6 hours, 4000 RMP. During this period, the pH was tested at 5, while a small amount of sodium nitrite was added to supplement the reaction until the reaction was complete. The product is filtered through a 1-micron filter to remove the solid part and retain the liquid color paste part, and then add 0.5 part of a coupling agent that has a certain dispersibility or solu...
Embodiment 2
[0044] This embodiment provides a nanoscale color paste for in-situ coloring of polyamide fibers, the steps are as follows:
[0045] In terms of parts by mass, mix 850 parts of deionized water and 2 parts of 37% concentrated hydrochloric acid, add them into the grinding barrel, stir and mix at a low speed and heat up to 45°C. Slowly add 20 parts of p-aminobenzoic acid powder to the mixed solution, stir and disperse at 800 RPM for half an hour until completely dissolved, then add 3 parts of sodium nitrite and 100 parts of carbon black at the same time. Then disperse and stir at high speed for 2-6 hours. During this time the pH was tested at 5.2 while adding a small amount of sodium nitrite until the reaction was complete. The product is filtered through a 1-micron filter to remove the solid part and retain the liquid color paste part, and then add 0.5 part of a coupling agent that has a certain dispersibility or solubility in water and can form a hydrogen bond with an amide bo...
Embodiment 3
[0047] This embodiment provides a nano-scale stable color paste for in-situ coloring of polyamide fibers, the steps are as follows:
[0048] Mix 85 parts of deionized water and 0.1 part of 37% concentrated hydrochloric acid, add them into the grinding barrel, stir and mix at low speed and raise the temperature to 45 °C. Slowly add 1 part of p-aminophenylglutamic acid powder to the mixed solution, stir and disperse at 800 RPM for half an hour until completely dissolved, then add 0.3 parts of sodium nitrite and 5 parts of carbon black at the same time. Then disperse and stir at high speed for 2-6 hours. During this period, the pH value is tested at 5.5, and a small amount of sodium nitrite is added until the reaction is completed; the product is filtered through a 1 micron filter, and the solid part is removed to retain the liquid color paste part, and then added to have a certain dispersion or solubility in water, which can be amide bonded 0.5 parts of coupling agent for formi...
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Abstract
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