Elastic foamed material and preparation method of elastic foamed material
A foaming material and elastomer technology, applied in the field of elastomer foaming material and its preparation, can solve the problems of high density, achieve high low temperature resistance, shorten foaming time, and good elasticity
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[0035] Example 1-5
[0036] In Example 1-5, the elastomer SEB SYH-503 is selected as the foaming base material, and the pellets are put into the YX-50 flat vulcanizing machine for foaming. The mold size is 150mm×100mm×10mm, and the foaming time is controlled at 10mm. The foaming temperature was controlled at 180℃, and the resilience was measured with a 10mm thick non-foamed injection molded sheet. The results are shown in Table 2:
[0037] Table 2
[0038]
[0039]
[0040] Table 2 shows that the elastomer foam material of the present invention has excellent aging performance, especially its anti-slip performance, which means that slippers and yoga mats made of this material have good safety performance; Example 3 has the best overall performance The addition of talc has a greater impact on the resilience and density of the material. The more SEBS added, the better the resilience of the elastomer foam material.
[0041] The density of the foamed material is tested according to the st...
Example Embodiment
[0051] Example 3 A scanning electron microscope SEM (Japan Electronics Corporation, model JSM-5900LV) was used to test the internal structure diagram of the foamed sample at different magnifications, see Figure 1-3 . From Figure 1-3 It can be seen that the foamed samples have uniform cells, small cells, 500-50 microns in diameter, and closed-cell structure.
Example Embodiment
[0052] Example 6-10
[0053] In Examples 6-10, different types of elastomer SEBS were selected as the foaming base material, and the pellets were put into the foaming device. The mold size was 150mm×100mm×10mm, the foaming time was controlled at 10mm, and the foaming temperature was controlled at 180℃. , The resilience was measured with non-foam injection molded sheets, and the results are shown in Table 3:
[0054] table 3
[0055]
[0056] Table 3 shows that with SEBSYH-502 and YH-561, elastomer foam materials can obtain better resilience and lower density, and have excellent anti-slip performance and aging resistance. .
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