东莞TPV塑料厂,供应TPV,供应TPV弹性体 TPV材料

·TSV70N是一款新型的高分子复合材料，韧性和强度平衡，耐磨，抗污，丝滑细腻，超耐黄变，耐化学性，导热性符合穿戴产品的要求.TSV70N is a new kind of polymer material which has excellent wear resistance，stain resistance ，yellowing resistance，chemical resistance ，smooth and exquisite touch，high thermal conductivity，toughness and strength of the balance.It is very suitable for wearable products.

产品描述

倍韧/BESTPERNE® TSV70N

热塑性弹性体Thermoplastic Elastomer

产品说明Product description
·TSV70N是一款新型的高分子复合材料，韧性和强度平衡，耐磨，抗污，丝滑细腻，超耐黄变，耐化学性，导热性符合穿戴产品的要求.TSV70N is a new kind of polymer material which has excellent wear resistance，stain resistance ，yellowing resistance，chemical resistance ，smooth and exquisite touch，high thermal conductivity，toughness and strength of the balance.It is very suitable for wearable products.
关键特性Key characteristic
1.舒适的触感，柔韧细腻、爽滑Comfortable feel，flexible ，exquisite and smooth touch. 2.粘接强度高，可粘接材质ABS、PC、TPU Very high bonding strength，adhesive materials：ABS、PC、TPU. 3.实用性，耐脏、耐油、耐汗、耐变色It is very practical，for excellent stain resistance，oil resistance，sweat resistance and discoloration resistance. 4.具有超强的耐黄变性能Excellent yellowing resistance performance. 5.绝对可靠的安全性，无毒、过敏性Reliable security ，non-toxic，non-allergic.
功能Function
产品应用 Main application	苹果手表带Apple watchbands				高档手机护套High-end phone protective covers
	医疗器材Medical device				智能手环Smart Bracelet
加工方法Processing method	注塑成型Injection molding
环保认证 Environmental certification	ROHS		REACH				EN71-3
	PAHS		ASTM-F963				Phthalate
颜色Color	本色Natural
气味Smell	少许树脂味A little resin smell
外型Appearance	圆球形小颗粒Cylindrical particle，about 3mm×1.5mm
储藏期Storage period	常温下通风干燥，12个月Ventilated dry at normal temperature，about 12 months
包装方式Packaging method	25公斤/袋 25kg/bag
物理性能Physical properties	结果Result	单位Unit		方法Method		成型条件Molding condition
比重Specific gravity	1.08±0.02	g/cm3		ASTM D792		干燥温度Drying temp 90℃
硬度Hardness	70±5	shoreA		ASTM D2240		干燥时间Drying time 3Hours
拉伸强度Tensile strength	>7	Mpa		ASTM D412		射嘴温度Nozzle temp 190℃
断裂延伸Elongation at break	<750	%		ASTM D412		螺筒一段温度Screw 1 temp 200℃
撕裂强度Tearing strength	>35	Kn/m		ASTM D624		螺筒二段温度Screw 2 temp 190℃
熔融指数Melt index	>1	g/10min		ASTM D1238		螺筒三段温度Screw 3 temp 180℃

压力

　　注塑过程是压力包括塑化压力（背压）和注射压力。螺杆后退时，其顶部熔料所受到的压力即为背压，通过溢流阀来调节。增加背压会提高熔体温度，减低塑化速度，使熔体温度均匀，色料混合均匀，并排出熔体气体，但会延长成型周期。TPU的背压通常在0。3～4MPa。

　　注射压力是螺杆顶部对TPU所施的压力，它的作用是克服TPU从料筒流向型腔的流动阻力，给熔料充模的速率，并对熔料压实。TPU流动阻力和充模速率与熔料粘度密切相关，而熔料粘度又与TPU硬度和熔料温度直接相关，即熔料粘度不仅决定于温度和压力，还决定于TPU硬度和形变速率。剪切速率越高粘度越低；剪切速率不变，TPU硬度越高粘度越大。

　　在剪切速率不变的条件下，粘度随温度增加而下降，但在高剪切速率下，粘度受温度的影响不像低剪切速率那样大。TPU的注射压力一般为20~110MPa。保压压力大约为注射压力的一半，背压应在1。4MPa以下，以使TPU塑化均匀。