Natural latex preservative and concentrated natural latex prepared by using same

Abstract

The invention discloses a natural latex preservative and concentrated natural latex prepared by using the same. The natural latex preservative is prepared by mixing a potassium hydroxide solution, a potassium laurate solution, tetramethylthiuram dithioate and a zinc oxide dispersion body. The preparation method of the concentrated natural latex comprises three steps of storage of field latex, centrifugal concentration and stabilization of the concentrated latex, wherein the natural latex preservative is added in the storage step of the field latex; and a latex stabilizer is added in the step of stabilizing the concentrated latex, and the components of the latex stabilizer comprise potassium hydroxide, potassium laurate and peregal O. The quality of the natural concentrated latex produced by the method is superior to that of the natural concentrated latex stored by traditional liquid ammonia, and the natural concentrated latex is small in mechanical stability fluctuation and high in chemical stability; and the product has no ammonia irritating odor and is environment-friendly.

Description

technical field [0001] The invention relates to the technical field of latex production, in particular to the preservation technology of natural latex, a raw material of latex, in particular to a natural latex preservative and concentrated natural latex prepared by using the natural latex preservative. Background technique [0002] Concentrated natural latex is the raw material of latex industry, it is widely used in latex gloves and other protective products and latex bedding such as pillows, mattresses and other daily necessities. It is made of the latex in the rubber tree as raw material, and processed through specific processes such as short-term storage of latex, centrifugation of latex and long-term stability of latex. The existing concentrated natural rubber latex production technology, because ammonia is used as a latex preservative, causes its products to have a strong ammonia irritating smell, and the production process also has problems such as polluting the envir...

AI Technical Summary

Problems solved by technology

The existing concentrated natural rubber latex production technology, because ammonia is used as a latex preservative, causes its products to have a strong ammonia irritating smell, and the production process also has problems such as polluting the environment, polluting the workplace, and endangering the health of operators; in addition , also due to the use of lauric acid soap as a latex stabilizer, resulting in difficult control of the latex stability, poor quality consistency, and poor product process performance

[0003] In recent years, in order to eliminate ammonia pollution in the existing technology, some improvements have been made, but some technologies have affected the wide application of the technology due to the poor performance of the concentrated latex application process, such as poor molding of latex products and slow vulcanization speed.

Although some other technologies can replace ammonia water and liquid ammonia to preserve latex, the cost of the preservative is high, and it is difficult to solve the long-standing problem of low initial mechanical stability of latex in the production of concentrated latex

[0004] Summarize the defects of the existing natural latex preservation technology: First, the technical performance of the product application (product) is not ideal, which brings difficulties to the production of the downstream product industry, and the physical properties of the product such as tensile strength are difficult to meet the standard

Second, the production cost of preservatives is relatively high

The third is that the quality of concentrated latex is not stable enough, the mechanical stability fluctuates greatly, and the chemical stability is low