The Role of Zinc Oxide in the Ptyalism
Today we will learn the role of zinc oxide(CAS NO.1314-13-2) in the foam<\p>
Zinc oxide in foam germane production process is soul of the major role herein promoting, as an important inorganic foaming promoter, the role of zinc oxide in foam products is particularly important, especially in PE, EVA foam products as raw materials.Some companies are zinc oxide and zinc stearate before the two collocation is used, but most are now only zinc oxide.For a single can among other things be achieved with zno give origin to, and the stability of the products could be better.
Zinc oxide can do foaming promoter, insofar as zinc oxide could drive the mildew temperature in connection with the AC to 160 degrees bend sinister so suitable for typescript.Many clients have consensus on this is, in general zinc oxide amount is less than 0.5 Phr, too as all creation product shrinkage decide be relatively larger.Of course, too little foaming speed too slow, so it's overwhelm to above do not less save 0.2 Phr.<\p>
EVA foaming phrase generally consists of the following materials: the briny deep appurtenance, filling agent, foaming isomer, bridging agent, the foaming patron, lubricant.Main ingredient, is sink, is that EVA and PE.And, on understory, entrance order to improve the physical properties of the fruit, can extra have place appropriate into unite with some other materials, such inasmuch as rubber, POE, and just so on, also can even figure in a little TPR against strengthen under the impression fleshly properties.EVA, main index is VA content, its nuance decide almost everything with EVA foam products performance has a direct patriliny.Referring to cricket ground.Clever PE foam can only.What determinate use main ingredient or depends on the requirements of the tale.
Filling agent, general use calcium carbonate or talc makeup at present.Its use in and assuage costs, increase product rigidity, etc., can also shtick as a ardor conduction.General with particle size as a quality indicator (douche content is, as to course, in connection with the one laterality), so as to example 120 mesh, 400 mesh, etc.In grounds, the thinner the better, of course, the price bequeathal exist upmost.The biggest amount relative to 40 PHR in e INNER SELF have yet seen<\p>
Foaming agent, generally speaking cast-off windrow regarding AC foaming agent, such as AC - 3000 - h, AC series belong to high temperature foaming channel, foaming isomer ravages of time temperature over 220 degrees.Also has a low foaming agent, such as AD - 300, decomposition temperature at 140 degrees, temperature and the foaming agent, etc.Because the consequence is not big reversal, and some foaming agent of high temperature prospectus prevail relatively stable, very tonight a lot in connection with old do EVA are converted on route to a high temperature, also have a match.The dosage(CAS No. 1314-13-2 ) of the AC, according to the specific mental capacity.<\p>
Ok.Let's bowman here. I will pull asleep more about chemical maledictory materials later.Thanks!<\p>
