ISOTHANE TPU树脂:
创新高性能丶高附加价值之绿色环保材料
大东树脂掌握关键技术,自行研发的高性能热塑型聚氨酯弹性体,简称TPU树脂,为高级环保材料,可於土中自然分解,是优异的环保材料。具备耐磨损丶耐撕裂丶及耐低温曲折等特性。大东树脂TPU树脂系统发展完整,分为芳香族与脂肪族两大类。
未来轻量化与节能减碳的趋势,也成功推出以塑代钢的热塑性长纤维增强复合材料及客制化规格的树脂与复合材料等。
大东树脂推出的长纤维增强复合材料(LFRT)具有优异的刚性强度及耐冲击特性, 可取代工业零部件的金属材料,有效减轻产品重量,且成型品表面具有良好光泽度及平滑性 ,耐磨耗性及尺寸安定性也较一般复合材料更佳 。
塑化产品生产线全程使用电脑自动化程序控制,采用先进的双轴反应押出设备产制高性能材料,并透过精密检验仪器之检测及自动化设备之包装堆栈,确保成品外观及储存品质。
ISOTHANE 7000系列 - 脂肪族
项目名称 | 脂肪族 |
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产品特性 | 优异的耐UV照射及不黄变特性,且拥有良好的透光性、机械强度、耐磨及加工特性,适合用于押膜、押管及射出用途。 |
应用场合 | 车用保护膜、智能型穿戴装置。 |
项目名称 | 脂肪族 |
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Description | ISOTHANE 7000 series products are aliphatic grade thermoplastic polyurethane having high elasticity and transparency. They exhibit excellent mechanical properties, abrasion resistance, hydrolysis resistance and no yellowing on exposure to UV light. ISOTHANE 7000 series can be processed by extrusion and injection molding. |
Supply and Storage | ISOTHANE TPU resins are supplied in pellet form packed in 25kg moisture proof bags. All TPU resins have been dried before packing. ISOTHANE TPU resins should be stored in cool and dry environment in their original containers until be used. Storage temperature should not exceed 30°C. If only a portion of TPU resins was used from a bag, the remainder of TPU resins should be tightly closed. |
Drying |
TPU resins are hygroscopic and pre-drying of TPU resins is always a necessary step before processing. Depend on the climate, the granule exposed to the atmosphere will absorb moisture very quickly. The moisture might bring about partial degradation of polymers and the formation of bubbles or streaks in the molded and extruded parts. In order to ensure the efficient and successful processing into quality parts, the moisture content in TPU resins is recommended less than 0.02%.
A desiccant-bed-type hopper dryer is recommended for drying ISOTHANE TPU. The dew point of the inlet air should be in the range of -30 to -40°C. About the recommended drying conditions, please view ISOTHANE individual data sheets.
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Processing - Extrusion |
Barrel and Motor
Screw
Feed Throat
Screen Pack
Die
About the recommended extrusion temperatures, please view ISOTHANE individual data sheets.
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Processing - Injection Molding |
Barrel and Motor
Screw
Injection Pressure
Injection speed
About the recommended injection molding temperatures, please view ISOTHANE individual data sheets.
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Coloring |
Generally, ISOTHANE TPU resins are supplied in their natural color. They can be colored by blending with pigment or pigment master batch. Using master batch based on TPU is recommended. Other master batch based on polyethylene or polystyrene is suitable to a limited extent. All colorants employed in TPU resins must be pre-dried before processing.
The normal addition of pigment or pigment master batch is 0.2%-0.5% or 1-3%.
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Additives | Various additives can be used to enhanced the properties of ISOTHANE TPU resins, e.g. anti-blocking agents, antioxidant, UV stabilizers or release agents. Most additives supplied as master batches are available. But not all additives are compatible with ISOTHANE TPU resins. It is recommended to inquire of your suppliers or our technical service before compounding. |
Recycling |
For ISOTHANE TPU resins, up to 20% of regrind may be recycled with virgin material depending on finished parts requirements. The regrind material has to be kept free of contamination, diced and dried before re-using. The material which has been contaminated, discolored or degraded is not suitable for recycling. TPU resins may decrease desired properties, e.g. hardness and mechanical properties, due to improperly mixing with regrind.
Regulatory or testing organizations (e.g., UL) may have specific requirements limiting the allowance amount of regrind. Certain quality requirements laid down in specifications may exclude the use of regrind material.
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Healthy and Safety Information | Before working with these products, it is essential that all operators are aware of the healthy and safety precautions. ISOTHANE TPU resins can be processed or machined over a wide range of temperature. There can be some smoke formation during processing. The smoke that contains some decomposition substances of TPU or additives may cause irritation to human body. Generally, the temperature does not exceed 240°C that can reduce decomposition formation. An effective extraction system, especially in the melt outlet zone, is necessary. The detail information concerning healthy and safety can be available in safety data sheets (SDS) or contact our technical service. |
Disposal | ISOTHANE TPU resins present no hazard to the environment or water. They can be dumped on municipal landfill or in a waste incineration plant. The official regulations on waste disposal should be observed. |
项目 | 单位 | ASTM | Polyester TPU | Polycaprolactone TPU | |||
---|---|---|---|---|---|---|---|
7185A | 7190A | 7195A | 7285A | 7290A-E | |||
比重 | D-792 | 1.16 | 1.16 | 1.18 | 1.12 | 1.11 | |
硬度 | Shore A | D-2240 | 85A | 90A | 95A | 85A | 90A |
抗张强度 |
MPa psi |
D-412 |
27 3930 |
33 4790 |
44 6380 |
23 3780 |
23 3340 |
@ 50% 延伸率 |
MPa psi |
7 1020 |
7 1020 |
14 2030 |
5 725 |
6 870 |
|
@ 100% 延伸率 |
MPa psi |
9 1310 |
11 1600 |
15 2180 |
7 1020 |
7 1020 |
|
@ 300% 延伸率 |
MPa psi |
19 2780 |
21 3050 |
24 3490 |
13 1890 |
17 2470 |
|
断裂延伸率 | % | 600 | 550 | 500 | 650 | 450 | |
撕裂强度 |
N/mm lb/in |
D-624 DIE C |
165 925 |
180 1010 |
220 1240 |
135 760 |
120 675 |
项目 | 单位 | ASTM | Polyether TPU | |||
---|---|---|---|---|---|---|
7380A-E | 7385A | 7385A-E | 7390A-E | |||
比重 | D-792 | 1.08 | 1.04 | 1.08 | 1.08 | |
硬度 | Shore A | D-2240 | 80A | 85A | 85A | 90A |
抗张强度 |
MPa psi |
D-412 |
42 6090 |
31 4500 |
43 6090 |
45 6530 |
@ 50% 延伸率 |
MPa psi |
5 725 |
5 725 |
6 870 |
8 1160 |
|
@ 100% 延伸率 |
MPa psi |
8 1160 |
6 870 |
9 1310 |
10 1450 |
|
@ 300% 延伸率 |
MPa psi |
31 4500 |
10 1450 |
35 5080 |
39 5660 |
|
断裂延伸率 | % | 400 | 700 | 400 | 430 | |
撕裂强度 |
N/mm lb/in |
D-624 DIE C |
110 620 |
140 785 |
115 645 |
120 675 |
ISOTHANE
7000 系列脂肪族TPU樹脂
7000 系列脂肪族TPU樹脂
耐UV及不黃變特性,適用於車用保護膜、智慧型穿戴裝置等。