Preparation of Hyperbranched Polyester Modified Nano-SiO<sub>2</sub> and Its Application in SBR

Ying Zhang; Jian Peng; Yong Lin; Yao-ran Chen; Lan Liu

doi:10.11777/j.issn1000-3304.2016.15293

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Preparation of Hyperbranched Polyester Modified Nano-SiO₂ and Its Application in SBR

Research Article | 更新时间：2021-03-19

- Preparation of Hyperbranched Polyester Modified Nano-SiO₂ and Its Application in SBR
- Acta Polymerica Sinica Issue 6, Pages: 706-714(2016)
- 作者机构：
  
  华南理工大学材料科学与工程学院广州 510640
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2016.15293
  CLC：
- Published：2016-6，
  
  Received：3 November 2015，
  
  Revised：3 November 2015，
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Ying Zhang, Jian Peng, Yong Lin, Yao-ran Chen, Lan Liu. Preparation of Hyperbranched Polyester Modified Nano-SiO₂ and Its Application in SBR. [J]. Acta Polymerica Sinica (6):706-714(2016)
DOI：

Ying Zhang, Jian Peng, Yong Lin, Yao-ran Chen, Lan Liu. Preparation of Hyperbranched Polyester Modified Nano-SiO₂ and Its Application in SBR. [J]. Acta Polymerica Sinica (6):706-714(2016) DOI： 10.11777/j.issn1000-3304.2016.15293.

摘要

利用二乙醇胺和丙烯酸甲酯合成的

-二羟乙基-3-胺基丙酸甲酯作为AB

型单体

以纳米SiO

为核

通过其表面羟基与单体的反应

制得SiO

接枝超支化聚酯的纳米粒子(SiO

-HBP);再利用超支化端羟基与

-己内酯进行开环反应

合成了含柔性长链的二氧化硅-长链超支化聚酯杂化物(SiO

-HBP-L);然后将杂化物与丁苯橡胶共混

制备了SiO

-HBP-L/SBR纳米复合材料.FTIR、XPS和TGA测试证实改性后纳米SiO

表面接枝了含长链超支化聚酯.SEM测试结果表明

相对于未改性的纳米SiO

SiO

-HBP-L在乙醇和橡胶基体中分散性较好

且改性后纳米SiO

与复合材料的相容性明显提高.硫化性能测试表明

SiO

-HBP-L能大大缩短胶料的正硫化时间

增大总交联密度;同时SiO

-HBP-L/SBR纳米复合材料的力学性能和耐磨性能有较大的提高

很好地实现了补强.

Abstract

-Di-hydroxyethyl amine-3-propionic acid methyl ester was prepared in a nitrogen atmosphere.And SiO

-HBP-L was

in situ

synthesized by grafting from with the monomers and

-caprolactone.The structure and morphology were characterized by FTIR

XPS and TG analysis.The results show that the hyperbranched polyester is successfully grafted at the surface of nano-SiO

.Compared with the nano-SiO

the SEM shows that the dispersion and compatibility of SiO

-HBP-L in the ethanol and rubber matrix is better.Then SiO

-HBP-L/SBR composites were prepared by using the direct mixing method.Vulcanization performance tests show that the curing time(

) of the composites are much shorter and the composites' total crosslinking density is increased with respect to SiO

/SBR composites.When the composites with 30 phr SiO

-HBP-L

the

was reduced to 3.30 min.What is more

SiO

-HBP-L/SBR composites have a great improvement of mechanical properties and wear resistance.It shows that the tensile strength

elongation at break

tear strength and wear resistance of the composites are increasing with the increase of contents of SiO

-HBP-L.The tensile strength

elongation at break of the composites with 30 phr SiO

-HBP-L were 14.8 MPa and 22.2 kN/m

and its wear resistance decreased to 289.4 mm

.Nano-SiO

modified with long-subchain hyperbranched polyester (SiO

-HBP-L) was used in the preparation of SiO

-HBP-L/SBR composites.The results show that the performance of SiO

-HBP-L is better than that of nano-SiO

in the reinforcement of SBR.

关键词

纳米SiO2超支化聚酯SiO2-HBP-L丁苯橡胶

Keywords

Nano-SiO2Hyperbranched polyesterSiO2-HBP-LSBRProperties

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⁰

Preparation of Hyperbranched Polyester Modified Nano-SiO2 and Its Application in SBR

DOI：10.11777/j.issn1000-3304.2016.15293

摘要

Abstract

关键词

Keywords

references

Preparation of Hyperbranched Polyester Modified Nano-SiO₂ and Its Application in SBR