In theory, the tensile strength should vary with CHINA EVA FOAM content decreases, but the experiment did not sample preparation crusts removed, so that its impact cannot be ignored, even in the small amount of CHINA EVA FOAM dominant factors that make tensile strength increased to some extent; when CHINA EVA FOAM amount exceeds 0.3, the apparent overall density of products is the dominant factor, the tensile strength decreased [6].

(AC = 15)

Both products and tensile strength of the apparent total density and other factors, CHINA EVA FOAM should choose the amount of 0.5 parts.

2.2 AC dosage on the impact of CHINA EVA FOAM foam products

Maintain the basic formulation of the CHINA EVA FOAM, Hst, 1, 22, divinylbenzene unchanged, leaving AC blowing agent used at levels of 17, 15, 11, 9 in turn changes and maintaining ZnO / AC = 0.1 the proportion of the system according to process the sample, measuring its performance.

Figure 3 AC dosage on the apparent density of the total

(CHINA EVA FOAM = 0.5)

In Figure 3, the article with the apparent overall density change is the amount of blowing agent AC: less than 13 parts, the apparent overall density is low, the peak 1 15 parts This is because: when the small amount of AC, little gas evolution, AC decomposed gas crosslinking reaction rate and rate of CHINA EVA FOAM to adapt to full expansion of the gas within the melt.