ASAAcrylonitrile Styrene Acrylate
耐候性优异的高功能性塑料
ASA是SAN和丙烯酸橡胶的共聚物，是具有优异的耐候性并集合了ABS大部分优点的高 功能性塑料。 由于ASA在长时间在户外使用后，仍能保持优异的物理性能以及外观，因此被广泛应用于汽车外饰件、建筑材料、家具板材等。
SANStyrene Acrylonitrile copolymer
透明性、光泽性优秀的塑料
SAN 是具有透明性、光泽性等优秀特征的透明塑料。并且耐冲击性、耐化学性能卓越，从家电到办公设备、化学品容器等，广泛用于多种产品。
苯乙烯-丙烯腈共聚物（acrylonitrile-styrene copolymer，英文简称SAN）又称AS树脂，是无色透明的热塑性树脂，具有耐高温性、出色的光泽度和耐化学介质性，还有优良的硬度、刚性、尺寸稳定性和较高的承载能力，是以丙烯腈和苯乙烯为原料用悬浮法聚合而得到的，使用热引发剂引发亦可，也可采用乳液聚合法制得，由于该树脂固有的透明性，故用于制造透明塑料制品。
(聚丙烯酸丁酯PBA)
丙烯酸酯橡胶（ACM），是以丙烯酸酯为主单体经共聚而得的弹性体，其主链为饱和碳链，侧基为极性酯基。由于特殊结构赋予其许多优异的特点，如耐热、耐老化、耐油、耐臭氧、抗紫外线等，力学性能和加工性能优于氟橡胶和硅橡胶，其耐热、耐老化性和耐油性优于丁腈橡胶。ACM被广泛应用于各种高温、耐油环境中，成为近年来汽车工业着重开发推广的一种密封材料，特别是用于汽车的耐高温油封、曲轴、阀杆、汽缸垫、液压输油管等。
树脂瓦ASA推荐型号
LI970
Co-Extrusion
Description
- Good Weatherability, Scratch Resistance
Applications - Window Profile, Siding, Rain Gutter
Updated Date : 15-Nov-17 Issued Date : 20-Nov-20
The information contained herein, including, but not limited to, data, statements and typical values, are given in good faith. LG Chem makes no warranty or guarantee, expressed or implied, (i) that the result described herein will be
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materials, products, recommendations, or advice for its own particular use. Each user must identify and perform all tests and analyses necessary to assure that its finished parts incorporating LG Chem material or products will be safe
and suitable for use under end - use conditions. The data contained herein can be changed without notice as a result of the quality improvement of the products.
Properties Method Unit LI970
Physical
Specific Gravity , 23℃ ASTM D792 1.12
Mold Shrinkage , 23℃, 3.2mm , 23℃ ASTM D955 % 0.4 ~ 0.7
Melt Flow Rate , 220℃, 10kg ASTM D1238 g/10min 12
Mechanical
Tensile Strength at Yield , 23℃, 50mm/min, 3.2mm ASTM D638 MPa 46
Tensile Elongation at Yield , 23℃, 50mm/min, 3.2mm ASTM D638 %, (Min) 6
Tensile Elongation at Break , 23℃, 50mm/min, 3.2mm ASTM D638 %, (Min) 15
Tensile Modulus , 23℃, 50mm/min, 3.2mm ASTM D638 MPa 2040
Flexural Strength , 23℃, 15mm/min, 3.2mm ASTM D790 MPa 75
Flexural Modulus , 23℃, 15mm/min, 3.2mm ASTM D790 MPa 2150
Izod Impact Strength , Notched, 3.2mm, 23℃ ASTM D256 J/m 175
Izod Impact Strength , Notched, 3.2mm, -30℃ ASTM D256 J/m 40
Izod Impact Strength , Notched, 6.4mm, 23℃ ASTM D256 J/m 125
Izod Impact Strength , Notched, 6.4mm, -30℃ ASTM D256 J/m 40
Rockwell Hardness , R-Scale ASTM D785 103
Thermal
HDT , Edgewise, 1.82MPa, 6.4mm, Unannealed ASTM D648 ℃ 82
VICAT , 50N, 50℃/h ASTM D1525 ℃ 90
Note
Typical values can be used only for the purpose of selecting material, and there can be variation within normal tolerances for various colors.
Values given should not be interpreted as specification and not be used for designing part or tool.
All properties, except melt flow rate are measured by injection molded specimens after 48 hours storage at 23℃, 50% relative humidit