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فروش مواد اولیه صنعت رنگ خودرویی

فروش مواد اوليه صنعت  رنگ خودرويي

فروش عمده مواد اولیه صنعت رنگ خودرویی
کب 20-381 CAB
Chlorinated Polyolefin) CPO 343-3 50% Eastman)
مشخصات فنی در ذیل آمده است.
سلولز استات بوتیرات
381-20 CAB
CAB 551-0.2
CAB 381-2
CAB 381-0.5
CAB 351-1
CAB 381-0.1

Eastman Cellulose acetate butyrate(CAB-381-20)
Eastman Cellulose acetate butyrate(CAB-381-2) is a cellulose ester with high butyryl content and high viscosity.Except high viscosity and high molecular weight,the other properties of this cellulose ester are the same with CAB-381-0.1 and CAB-381-0.5.The combination properties of CAB - 381-2 are better,such as good dissolubility,compatibility,water resistance,surface hardness and film strength. It can be supplied as free-pouring powder.According to the regulations issued by FDA,Eastman Cellulose acetate butyrate(CAB- 381-2) is allowed to be used in some products in contact with foodstuffs.

Technical data:
Propetya Test methodb Typical number,unitc
Butyryl content   38%(weight)
Acetyl content   13.5%(weight)
Hydroxyl content   0.013
Viscosityd   2 s/ 7.6 ps
Colore   125 ppm
Optical hazef   35 ppm
Acidity,(calculated based on ethanoic acid)   0.03 wt % max.
Ash content   0.05%
Refractive index   1.475
Heat resistant test @160℃,8 h   Tanning melting
Melting point   171-184℃ (340-363℉)
Specific gravity   1.2
Weight/Volume proportion(cast film)   1.2 kg/L (10 lb/gal)
Stacking density    
Casting   352 kg/m3 (22 lb/ft3)
Diffluence   465kg/m3 (39 lb/ft3 )
Dielectric strength   787-984 kv/cm(2-2.5kv/mil)
Glass transition temperature(Tg)   133-271℃
Molecular weight ,Mn f   20000

Matters Need Attention:
a: All tests should be conducted at the temperature of 23℃(73℉)and relative humidity of 50% unless otherwise stated.
b: According to the solution described by method D1343 formula A of ASTM and method D817 of ASTM to measure viscosity.The viscosity unit equivalent value is poise replaced by ASTM second in method D817 of ASTM.
c: Cellulose ester dissolve in MIBK to measure color and optical haze.Using Pt-Co color standard and optical haze standard of Johns-Manville diatomite(diatomite products).
d: Using Gel permeation chromatography to measure average molecular weight of polystyrene equivalent weight.
e: Cellulose ester dissolve in MIBK to measure color and optical haze.Using Pt-Co color standard and optical haze standard of Johns –Manville diatomite(diatomite products).
f: Using Gel permeation chromatography to measure average molecular weight of polystyrene equivalent weight.
Note: Above properties are general goods standard value,Eastman does not declare any specific goods should keep in exact accordance with above numbers.
Storage: It must be stored in a cool,dry and ventilated place,protected from direct sunlight,and strictly sealed after using.
Package:20 kg /paper bag.

Place of origin:U.S.Eastman

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