從TPE包膠工藝的理論模型來分析,實現接合(cohesion)包膠效果,基本要點其實只有三句話:
1.極性匹配,兩種材料在熔體狀態下能分子鏈段互溶加穿透;
2.TPE熔體溫度足夠高, 能燒蝕硬塑表面;
3.TPE表面張力低于硬塑表面張力,以便快速鋪展在硬塑表面,進而實現燒蝕、材質相互穿透;
上述三個基本要點其實已經決定了:TPE和硬塑的配方相互匹配、相互滿足要求,是實現理想接合(cohesion)效果的基礎。
倍韌/BESTPERNE® ES80H4-01
熱塑性彈性體Thermoplastic Elastomer
| 產品說明Product description | |||||||
| ·ES80H4-01是一款SEBS透明材料,具有優異耐候性和特別舒適的手感。可快速成型。 ·ES80H4-01 is a kind of transparent polymer material based on SEBS which has excellent weather resistance and special comfortable touch.Also it can be taken shape rapidly. | |||||||
| 關鍵特性Key characteristic | |||||||
| 1.表面微啞,手感細膩柔軟A little dumb on the surface,exquisite and soft touch. 2.成型快,不粘模具Rapid molding,non-stick mold. 3.耐黃變,耐候性能好Excellent yellowing resistance and weather resistance. 4.可以包膠PP It can be spliced with PP. | |||||||
| 功能Function | |||||||
| 產品應用 Main application | 運動器材Sports equipment | 電子產品Electrical products | |||||
| 汽車產品Automotive products | 玩具公仔Toy dolls | ||||||
| 加工方法Processing method | 注塑成型Injection molding | ||||||
| 環保認證 Environmental certification | ROHS | REACH | EN71-3 | ||||
| PAHS | ASTM-F963 | Phthalate | |||||
| 顏色Color | 透明transparent | ||||||
| 氣味Smell | 少許樹脂味A little resin smell | ||||||
| 外型Appearance | 圓球形小顆粒Cylindrical particle,about 3mm×1.5mm | ||||||
| 儲藏期Storage period | 常溫下通風干燥,12個月Ventilated dry at normal temperature,about 12 months | ||||||
| 包裝方式Packaging method | 25公斤/袋 25kg/bag | ||||||
| 物理性能Physical properties | 結果Result | 單位Unit | 方法Method | 成型條件Molding condition | |||
| 比重Specific gravity | 0.9±0.02 | g/cm3 | ASTM D792 | 干燥溫度Drying temp 70℃ | |||
| 硬度Hardness | 78±5 | shoreA | ASTM D2240 | 干燥時間Drying time 2Hours | |||
| 拉伸強度Tensile strength | >7 | Mpa | ASTM D412 | 射嘴溫度Nozzle temp 200℃ | |||
| 斷裂延伸Elongation at break | >400 | % | ASTM D412 | 螺筒一段溫度Screw 1 temp 190℃ | |||
| 撕裂強度Tearing strength | >45 | Kn/m | ASTM D624 | 螺筒二段溫度Screw 2 temp 180℃ | |||
| 熔融指數Melt index | >2 | g/10min | ASTM D1238 | 螺筒三段溫度Screw 3 temp 170℃ | |||


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