Views: 211 Author: Yiliya Publish Time: 2023-06-10 Origin: Site
The small molecule content of nitrile latex for gloves is the key to its quality.
The core of high-quality latex production is strict temperature control, a small temperature rise in polymerization will bring a large number of small molecule products, low temperature and low conversion rate and perfect de-monomer link, is the basic guarantee.
Small molecular weight nitrile is easier to vulcanize in advance, in storage and transportation, pre-vulcanization and the tank will form crusting and particulate matter, especially serious in summer, the production of filter can not be completely filtered, will form pinholes on the glove, not pinholes, will also form strength defect points, affecting the tensile strength.
Low molecular weight nitrile, after vulcanization, because the molecular weight is still low, easy to precipitate resulting in external adhesion.
So, how to detect the content of low molecular weight nitrile?
Molecular weight distribution meters can be used to control the quality of latex at the source, and the degree of pre-vulcanization and the stability of the tank latex can be measured digitally. The easy way is to compare the crust and granulation degree per unit time with the high-quality standard latex, both of which require a period of data analysis and induction, as well as the experience of the experimentalist.
