Starch size

Abstract

The invention discloses starch size which comprises the following components in part by weight: 30 to 40 parts of native starch, 2 to 5 parts of potassium persulfate, 10 to 15 parts of butyl methacrylate, 10 to 15 parts of acrylamide, 2 to 5 parts of emulsified oil, 3 to 6 parts of talcum powder, 1 to 5 parts of trisodium phosphate, 10 to 15 part of carboxymethylcellulose, 4 to 12 parts of sodium pentachlorophenate, 2 to 7 parts of formaldehyde ethyl phenol and 5 to 10 parts of polyamine polyamide epoxypropane. According to the starch size, the mechanical property of the starch size is improved obviously, the raw materials and the energy are saved, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of textile size, in particular to a starch size. Background technique [0002] Starch is currently the most used warp sizing material. It is a renewable resource with a low price and can be completely biodegraded. However, due to the semi-rigidity of the glucose residues on the starch macromolecular chains and the strong hydrogen bonds between the starch molecules, the starch slurry has a high viscosity, the size film is hard and brittle, and lacks adhesion to synthetic fibers. Therefore, improving the performance of starch size is an important topic in the field of sizing materials. [0003] Grafted modified starch is a kind of chemical modification of starch, and it is one of the suitable sizing materials to replace PVA. It usually uses vinyl-based monomers to form a synthetic polymer branch chain with a certain degree of polymerization on the main chain of starch macromolecules through free radicals, so that the ...

AI Technical Summary

Problems solved by technology

At present, the grafted starch is mainly based on the wet method, which consumes a lot of water and electricity, and the cost is high.