EPITAXIAL CRYSTALLIZATION IN HIGHLY ORIENTED LLDPE/IPP BLEND

ZHANG Wei-guang; YANG De-cai

doi:null

您当前的位置：

首页 >

文章列表页 >

EPITAXIAL CRYSTALLIZATION IN HIGHLY ORIENTED LLDPE/IPP BLEND

Research Article | 更新时间：2021-03-19

- EPITAXIAL CRYSTALLIZATION IN HIGHLY ORIENTED LLDPE/IPP BLEND
- Acta Polymerica Sinica Issue 1, Pages: 61-67(1992)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：20 February 1992，
扫描看全文
ZHANG Wei-guang, YANG De-cai. EPITAXIAL CRYSTALLIZATION IN HIGHLY ORIENTED LLDPE/IPP BLEND. [J]. Acta Polymerica Sinica (1):61-67(1992)
DOI：

ZHANG Wei-guang, YANG De-cai. EPITAXIAL CRYSTALLIZATION IN HIGHLY ORIENTED LLDPE/IPP BLEND. [J]. Acta Polymerica Sinica (1):61-67(1992) DOI：

摘要

本文用透射电子显微术、电子衍射等方法研究了线性低密度聚乙烯(LLDPE)和等规聚丙烯(IPP)共混物高取向薄膜的形态结构.在熔体拉伸薄膜中统组分的LLDPE与IPP均以高取向的片晶形式存在

片晶生长方向垂直手拉伸方向.当共混物中LLDPE含量较低(小于40％)时

作为分散相的LLDPE在IPP上附生结晶.两种片晶的c轴成45°交角

附生结晶的接触面为LLDPE的(100)和IPP的(010).而在LLDPE含量大于50％时

LLDPE形成独立的相区

则不存在附生结晶现象

结果两种片晶的生长方向均垂直于拉伸方向.在135℃热处理15min

然后自然冷却的LLDPE/IPP共混物薄膜中

当LLDPE含量≤50％时

LLDPE仍然在IPP上附生生长

二者的结构关系与热处理前的相同.

Abstract

Epitaxial crystallization of highly oriented films of LLDPE/IPP blends has been studied in this work by means of trsamission electron microscopy. The melt-drawn films of pure LLDPE or IPP consist of highly oriented lamellar structure. The growth direction of LLDPE and IPP lamellae is perpendicular to the drawing direction. When the content of LLDPE in the LLDPE/IPP blends is below 40%

epitaxial growth of LLDPE lamellae on highly oriented IPP lamellae has been observed. The intercrossing angle of the two kinds of epitaxial lamellae is about ±45℃

while the contact planes should be (010) of IPP and (100) of LLDPE.There is noabove relationship of epitaxial crystallization in the films when the content of LLDPE in the blends is over 50% because of the formation of independent domain of LLDPE.When the films of LLDPE/IPP blends was heat-treated at 135℃(above the melting point of LLDPE) for 15 min

and subsequetly cooled to room temperature

the epitaxial relationship between LLDPE and IPP is maintained.

关键词

线性低密度聚乙烯聚丙烯共混物附生结晶形态

Keywords

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

ON THE MORPHOLOGY OF POLYPROPYLENE/CHLORINATED POLYETHYLENE BLENDS

THE MICROSTRUCTURE OF MULTI-COMPONENT POLYPROPYLENE RESINS AND THE DYEING PERFORMANCE OF BLENDED POLYPROPYLENE FIBERS

IMPACT FRACTURE MORPHOLOGY OF COPOLYESTER TOUGHENED WITH A MALEITED CORE-SHELL IMPACT MODIFIER

FORMATION OF DOUBLE SEA-ISLAND COMPOSITE STRUCTURE IN BLENDING POLYMERS

A STUDY ON KINETICS OF GEL FORMATION OF POLYPROPYLENE/POLYETHYLENE BLENDS BY GAMMA RADIATION

Related Author

No data

Related Institution

Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology

扬州大学化学化工学院

扬州大学江苏省环境工程与环境材料重点实验室

扬州大学测试中心

1,2),GAO Xueqin~2,YUAN Yi~2,SHEN Kaizhi~2

Postal code：100190
Tel：010-62588927 Email：gfzxb@iccas.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备05002797号-8 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰