Sodium-silicate-modified silicon polyester slurry and preparation technique thereof

Abstract

The invention discloses sodium-silicate-modified silicon polyester slurry. The silicon polyester slurry is prepared by the following steps: carrying out sodium removal reaction on sodium silicate and an ion-exchange resin, and carrying out emulsification reaction with ester monomers generated by dibasic acid-glycol ester reaction. The silicon polyester slurry is environmentally friendly, can completely substitute the PVA (polyvinyl alcohol) slurry sizing technique, and solves the potential safety hazard that ozone and nitrogen oxide generated by static electricity caused by yarn-air flow impact in the corona process can generate invisible damage to the human body. The yarn prepared from the slurry has the advantages of no stain, easy leasing, no joint, high neatness, clear opening, high strength, high permeability and complete and smooth slurry film, and has the peculiar function of obstructing static electricity. The slurry lowers the cost on the premise of ensuring the weaving quality and efficiency, is degradable, satisfies the requirements of one-time desizing in textile industry, does not have environment pollution, is convenient to use and operate, and has higher economic benefits and profound social benefits.

Description

technical field [0001] The invention relates to the technical field of textile pulp, in particular to a sodium silicate modified silicon polyester nH2O ion pulp and a preparation process thereof. Background technique [0002] Textile size is a natural and synthetic high molecular polymer with viscous effect used in textile system engineering. At present, the commonly used size is polyvinyl alcohol (PVA). PVA has its unique advantages, such as stable viscosity of the size, large film forming ability, strong adhesion and wear resistance, and can strengthen the strength of the yarn. Finally, it is not affected by the environment and has moderate hygroscopicity. But it also has disadvantages at the same time: one is that due to the strong adhesion of PVA, it is difficult to separate and twist when wrapped on the yarn, and it needs a lot of chemical additives to decompose to achieve the effect of easy weaving. Multiple chemical desizing treatments are required, but the residues...

AI Technical Summary

Problems solved by technology

But it also has disadvantages at the same time: one is that due to the strong adhesion of PVA, it is difficult to separate and twist when wrapped on the yarn, and it needs a lot of chemical additives to decompose to achieve the effect of easy weaving. Many chemical desizing treatments are required, but the PVA residues cannot be completely cleaned up, so it causes great pollution to the environment; secondly, the yarn sizing out of PVA tends to generate static electricity during the weaving process, which affects the weaving efficiency , and in the prior art, the corona method is generally used to treat static electricity. When corona occurs, in addition to electro-optic light and glow light, it is also accompanied by squeaking discharge sounds, and generates ozone and nitrogen oxides. Ozone has strong oxidizing properties. Ozone chemical smog will destroy the immune function of the human body, induce lymphocyte chromosomal lesions, cause human skin to wrinkle, appear dark spots, and cause fetal deformities in pregnant women

However, in the prior art, there is no slurry that can completely replace PVA