倍韌/BESTPERNE® EN45A-MP
熱塑性彈性體Thermoplastic Elastomer
| 產品說明Product description | |||||||
| EN45A-MP是一款以SEBS為主基材的熱塑性彈性體,成型快,好配色。 EN45A-MP Pis a kind of thermoplastic elastomer material based on SEBS as main material.Also it has rapid molding and easy coloring properties. | |||||||
| 關鍵特性Key characteristic | |||||||
| 1.手感柔軟細膩,干爽,耐刮擦性好。Exquisite, soft and dry touch,good scratch resistance. 2.抗老化及耐腐蝕性優良。Excellent ageing resistance and corrosion resistance 3.可以包PP,PE It can be spliced with PP and PE | |||||||
| 功能Function | |||||||
| 產品應用 Main application | 1 汽車用品 Automotive products | 3手把Handlebar | |||||
| 2 運動器材Sports equipment | 4玩具產品Toy products | ||||||
| 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 | 本色 Natural | ||||||
| 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,24個月Ventilated dry at normal temperature,about 24 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 | 1.15±0.02 | g/cm3 | ASTM D792 | 干燥溫度Drying temp 70℃ | |||
| 硬度Hardness | 45±5 | shoreA | ASTM D2240 | 干燥時間Drying time 2Hours | |||
| 拉伸強度Tensile strength | >3 | Mpa | ASTM D412 | 射嘴溫度Nozzle temp 190℃ | |||
| 斷裂延伸Elongation at break | >400 | % | ASTM D412 | 螺筒一段溫度Screw 1 temp 180℃ | |||
| 撕裂強度Tearing strength | >11 | Kn/m | ASTM D624 | 螺筒二段溫度Screw 2 temp 170℃ | |||
| 熔融指數Melt index | >10 | g/10min | ASTM D1238 | 螺筒三段溫度Screw 3 temp 160℃ | |||
1一、如果合模裝置調節不佳,肘桿機構沒有伸直,產生或左右或上下合模不均衡,模具平行度不能達到的現象造成模具單側一邊被合緊而另一邊不密貼的情況,則注射時將出現飛邊。
2止回環磨損嚴重;彈簧噴嘴彈簧失效;料筒或螺桿的磨損過大;入料口冷卻系統失效造成“架橋”現象;機筒調定的注料量不足,緩沖墊過小等都可能造成飛邊反復出現,必須及時維修或更換配件。
3如果模具本身平行度不佳,或模板不平行,或裝得不平行,或拉桿受力分布不均、變形不均,等這些都將造成合模不緊密而產生飛邊。
4第二有可能是機器真正的合模力不足。在我們選擇注塑機時,機器的額定合模力必須高于注射成型制品縱向投影面積在注射時形成的張力,否則將造成脹模,出現飛邊。


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