永丰超白大方解石粉在ABS中的应用.pdf

第44卷,第8
工程塑料应用
Vol44. No
2016年8月
TNGINTTRING PIASTICS APPLICATION
Aug.2016
doi:10.3969ssn,1001-3539.2016.08.025
永丰超白大方解石粉在ABS中的应用
彭鹤松,曾伟,宋建强1,张翔,王光硕12
(1.江西广源化工有限责任公司,江西吉安331500;2.河北工程大学装备制造学院,河北邯郎056008)
摘要:选取3种不同细度的由永キ超白大方解石制成的超細碳酸钙(CC)(CC-1250,CC-2500,CC-6000C)作
为无机填料,以两斾腑丁二斾苯乙斾塑料(ABS)为基体,采用双螺杆挤出机制备了ABS/CC复合材料,研究了
CC的细度和用量对ABS力学性能、熔体流动速率(MFR)和密度的影响。结果表明,在相同的CC(20份)用量下,
度道中的CC-2500在ABS中的分散性最好,由其制备的ABS复合材料具有最好的综合力学性能和加工流动性以
及最小的密度。随CC-2500用量的增加,复合材料的拉伸强度和弯曲强度逐漸减小,MFR先增加后降低,密度逐渐
增大,而缺口冲击强度总体呈降低的趋势,但在CC2500用爱为20份时有所回升,基本与CC2500用量为5份时的
数值相当。当CC2500用量为20份时,复合材料的综合性能最好,拉仲强度、弯曲强度、筒支梁和悬臂梁冲击强度
分别达到37.25MPa,54.98MPa,18.42kJ/m2和22.87kJ/m2,MiR为12.33g/10min,密度为1.081g/cm。扫
描电子显微镜結果显示,即使在用量较高的情況下,CC-2500仍可以均匀地分散在ABS基体中
关键词:方解石;超细残酸钙;丙姉財丁二始苯乙烯塑料;细度;カ学性能;熔体流动速率;密度;分散
中图分类号:TQ314.263文献标识码:A文章编号:1001-3539(2016008-0115-05
Application of Ultra-white Big Calcite Powder Produced from Yongfeng on ABS
Peng Hesong, Zeng Wei, Song Jianqiang, Zhang Xiang, Wang Guangshuo
(lJiangxi Guangyuan Chemical Co. Ild, i an 331500, China
2. Collogc of Equipmcnt Manufacturing, Hcbei Univcrsity of Enginccring, Handan 056038, China)
Abstract: Selecting three kinds of ultra-fine calcium carbonate(CC)(CC 1250, CC 2500, CC 6000) made of ultra-white big
calcite produced from yongfeng of i'an with different fineness as inorganic fillers and acrylonitrile-butadiene-styrene plastic(BS)
as matrix, the BS/CC composites were prepared successfully using a twin-screw extruder, the effects of CC fineness and content
on the mechanical properties, melt flow rate (PR )and density of the composites were studied in detail. The results show that, un
der same CC content(20 phr), compared with the CC 1250 and CC 6000, CC 2500 with medium fineness has best dispersion in
the RS matrix and the BS/CC 2500 comosite has best comprehensive mechanical properties, processin flowability and lowest
density. With the increase of C 2500 content, the tensile strength and bending strength of the composite decrease gradually, MPR
increases initially and decreases afterwards, density increases gradually, while the Charpy and Izod notched impact strength decreas
as a whole, but when CC 2500 content is 20 phr, their values are rebounded and are basically equal to those when CC 2500 content
is 5 phr. When CC 2500 content is 20 phr, the composite has best comprehensive properties, the tensile strength, bending strength
Charpy notched impact strength, Iod notched impact strength, MFR and density are 37.25 Mpa, 54.98 MTA, 18.42 KJ/m
22.87 k I/m", 12.33 g/10 min and 1.081 g/cm, respectively. The SFM results show that under high content, CC 2500 still has
homogeneous dispersion in ABS matrix
Kcywords calcite; ultra-fine calcium carbonate acrylonitrile-butadiene-styrene plastic fineness; mechanical property; melt
ing flow rate; density; dispersion
丙烯腈一丁二烯一苯乙烯塑料(ABS)产量大、不同,需要通过不同的技术对ABS进行改性,以使
应用广泛,其具有优良的尺寸稳定性、耐低温性、耐其达到特定场合的使用要求
化学溶剂性和抗冲击性等特点,因而在机械制造、汽
方解石是一种结品的碳酸盐,其母岩是石灰
车仪表、电子电器、纺织工业和建筑建材等领域被
联系人:彭松,学学上,主要从事碳酸钙、滑石粉等无机非金
泛应用。但是,ABS具有耐候性较差且热变形温度κ粉体填料在塑料中的加【应用研完
较低的缺点,由于具体应用的条件、场合、环境等的
收稿日期:2016-07-08