Antipilling nitrilon and its production method
A technology of anti-pilling acrylic fibers and production methods, applied in textiles and papermaking, single-component synthetic polymer rayon, fiber chemical characteristics, etc., can solve the problem of fiber anti-pilling performance decline, complex production process, and anti-pilling fiber poor durability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] Anti-pilling fiber pilot test:
[0027] The production of polymer A, the specific parameters of A polymer are shown in Table 4, and the reaction is carried out in a continuous reactor with a jacket of pure aluminum, and the feed amount of the reactant is accurately measured by a mass flow meter. The solid concentration is 28%, the reaction temperature is 65°C, the pH value in the kettle is 3.0, and the conversion rate is 85%. The jacket is cooled with chilled water to remove the heat generated by the reaction. Remove the monomer, wash it into the polymer and mix it;
[0028] For the production of polymer B, change the parameters of B set after 7 hours of production of polymer A to produce polymer B. The specific parameters are shown in Table 5. The preparation method and process conditions are the same as those of polymer A;
[0029] A and B two kinds of polymers are mixed in a mixing tank at a ratio of 1:1 to produce stock solution;
[0030] Dehydration and pulping s...
Embodiment 2
[0053] Acrylonitrile copolymer A with acrylonitrile content of 95%, vinyl acetate content of 5%, viscosity average molecular weight of 35000-50000 and acrylonitrile content of 85%, vinyl acetate content of 14%, viscosity average molecular weight of 50000-50000 For 60000 acrylonitrile copolymer B, the two polymers A and B are mixed in a ratio of 1:1.5.
[0054] The reactions were all carried out in a jacketed continuous reaction kettle of pure aluminum, the total monomer concentration of the feed was 35%, the reaction temperature was 55°C, the pH value in the kettle was 2.0, and the conversion rate was 75%. Chilled water is used for cooling to remove the heat generated by the reaction; the reacted polymer is terminated by reaction, the monomer is released, washed with water and mixed with the polymer; the mixed polymer is dehydrated and dissolved with sodium thiocyanate to prepare a polymer The raw material content is 13.5%, and the crude stock solution is extracted by air bubb...
Embodiment 3
[0056] Acrylonitrile copolymer A with acrylonitrile content of 91%, vinyl acetate content of 9%, viscosity average molecular weight of 35000-50000 and acrylonitrile content of 91%, vinyl acetate content of 9%, viscosity average molecular weight of 50000-50000 For 60000 acrylonitrile copolymer B, the two polymers A and B are mixed in a ratio of 1:2.
[0057] The reactions were all carried out in a jacketed continuous reaction kettle of pure aluminum, the total monomer concentration of the feed was 30%, the reaction temperature was 60°C, the pH value in the kettle was 2.5, and the conversion rate was 80%. Chilled water is used for cooling to remove the heat generated by the reaction; the reacted polymer is terminated by reaction, the monomer is released, washed with water and mixed with the polymer; the mixed polymer is dehydrated and dissolved with sodium thiocyanate to prepare a polymer The raw material content is 13.5%, and the crude stock solution is released through air bub...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More