消除色母同母料混合不均的影響
塑料母料同色母混和不好也會使產(chǎn)品顏色變化無常。將母料及色母機械混合均勻后,通過下吸料送入料斗時,因靜電作用,色母同母料分離,易吸附于料斗壁,這勢必造成注塑周期中色母量的改變,從而產(chǎn)生色差。對此種情況可采取原料吸入料斗后再加以人工攪拌的方法解決。現(xiàn)在有很多公司采用喂料機來加入色母,這樣節(jié)省了大量人力,并且為色差控制提供了很大的幫助,但不少公司因使用不當,結(jié)果往往難以令人滿意。固定轉(zhuǎn)速下喂料機加入色母的多少取決于塑化時間,而塑化時間本身是波動的,有時波動甚至還比較大,因此要保證恒定的加料量,需將喂料機加料時間加以固定,且設(shè)定時間小于最小塑化時間。在使用喂料機時需注意,因喂料機出口較小,使用一段時間后,可能會因為喂料機螺桿中積存的原料粉粒造成下料不準,甚至造成喂料機停轉(zhuǎn),因此需定期清理。
| 產(chǎn)品說明Product description | ||||||||
| ·RN25B-01是一款高性能材料,具有良好的抗沖擊和抗疲勞性能。 ·RN25B-01 is a kind of high performance material which has excellent impact resistance and fatigue resistance properties.
| ||||||||
| 關(guān)鍵特性Key characteristic | ||||||||
| 1.表面光亮Bright surface. 2..可噴油,絲印,上膠水,油墨Oil injection,silkscreen,can be applied with glue and ink. 3.彈性優(yōu)良,易成型Excellent elasticity,easy molding. | ||||||||
| 功能Function | ||||||||
| 產(chǎn)品應用 Main application | 玩具公仔Toy dolls | 運動器材Sports equipment | ||||||
| 鞋材 Shoe material |
| |||||||
| 加工方法Processing method | 注塑成型Injection molding | |||||||
| 環(huán)保認證 Environmental certification | ROHS | REACH | EN71-3 | |||||
| PAHS | ASTM-F963 | Phthalate | ||||||
| 顏色Color | 乳白色Milky-white | |||||||
| 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(jié)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 | ||||
| 硬度Hardness | 25±5 | shoreA | ASTM D2240 | 干燥時間Drying time | ||||
| 拉伸強度Tensile strength | >2 | Mpa | ASTM D412 | 射嘴溫度Nozzle temp 180℃ | ||||
| 斷裂延伸Elongation at break | >450 | % | ASTM D412 | 螺筒一段溫度Screw 1 temp 170℃ | ||||
| 撕裂強度Tearing strength | >10 | Kn/m | ASTM D624 | 螺筒二段溫度Screw 2 temp 160℃ | ||||
| 熔融指數(shù)Melt index | >40 | g/10min | ASTM D1238 | 螺筒三段溫度Screw 3 temp 150℃ | ||||
| 注意事項Matters need attention | ||||||||
| 清洗料管 Purge compound | 需使用PP或 PE清洗干凈機臺螺桿,且把機臺射嘴清除干凈Please make sure you that you have cleaned the machine screw with PP or PE, and put the machine nozzle thoroughly clean. | |||||||
| 著色 Coloring
| 請選擇以PE或EVA為基材之色母,切勿使用以PVC為基材者。另外加工時請采用較高的螺桿轉(zhuǎn)速和較高的背壓,才能讓著色劑達到較好的分散效果Please select color master batch on PE or EVA material with the exception of PVC.Higher screw speed are backpressure are needed for better colorant dispersion. | |||||||
| 回收 Recycling | 二次料(水口料)回收比率建議最多20%. Consistent regrind usage of up to 20% is permissible. | |||||||


所有評論僅代表網(wǎng)友意見,與本站立場無關(guān)。