EFFECT OF DIFFERENT SURFACE ROUGHNESS ON GLUE STRENGTH OF POLYVINYL CHLORIDE SHEET

MA XiaoSong; XING YouDong

doi:10.16579/j.issn.1001.9669.2019.03.016

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EFFECT OF DIFFERENT SURFACE ROUGHNESS ON GLUE STRENGTH OF POLYVINYL CHLORIDE SHEET

更新时间：2022-09-22

- EFFECT OF DIFFERENT SURFACE ROUGHNESS ON GLUE STRENGTH OF POLYVINYL CHLORIDE SHEET
- Journal of Mechanical Strength Vol. 41, Issue 3, Pages: 600-605(2019)
- 作者机构：
  
  1. 桂林电子科技大学机电工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2019.03.016
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MA XiaoSong, XING YouDong. EFFECT OF DIFFERENT SURFACE ROUGHNESS ON GLUE STRENGTH OF POLYVINYL CHLORIDE SHEET. [J]. 41(3):600-605(2019)
DOI：

MA XiaoSong, XING YouDong. EFFECT OF DIFFERENT SURFACE ROUGHNESS ON GLUE STRENGTH OF POLYVINYL CHLORIDE SHEET. [J]. 41(3):600-605(2019) DOI： 10.16579/j.issn.1001.9669.2019.03.016.

摘要

为验证不同表面粗糙度的聚氯乙烯(pvc)塑料板材搭接接头强度性能,用不同目数的砂纸分别对多组pvc板材进行打磨(打磨长度为30 mm),用表面粗糙度仪器测量表面粗糙度并用高倍显微镜检测表面情况;结果表明60目—400目砂纸打磨的板材表面粗糙度依次减小,表现为R,a,值由10.84μm减小至1.503μm。用不同表面粗糙度的板材与硅橡胶粘结成搭接件进行拉伸强度试验,得出不同的表面粗糙度的搭接件具有不同的搭接强度,用60～100目砂纸打磨的板材搭接接头能承受的最大拉伸力由1.858 kN增大至2.063 kN,搭接强度逐渐增大;用100～400目砂纸打磨的板材搭接接头能承受的最大拉伸力由2.063 kN下降至1.567 kN,搭接强度逐渐降低,对照组为未经任何表面处理的板材搭接件,能承受的最大拉伸力为1.380 kN,搭接强度最低;实验表明对于pvc塑料板材与硅橡胶的搭接件,用100目的砂纸打磨后的搭接性能最好。

Abstract

In order to verify the strength of polyvinyl chloride（pvc） plastic sheet lap joint with different surface roughness, the pvc plate was polished with different mesh sandpaper（polished length was 30 mm）. The surface roughness was measured with a surface roughness instrument and the surface was examined with a high power microscope. The results show that different types of sandpaper abrasive sheet will produce different surface roughness. 60 mesh to 400 mesh sandpaper polished sheet surface roughness decreased gradually, the performance of the Ra value from 10.840 μm reduced to 1.503 μm. Tensile strength test was carried out by bonding the sheet with different surface roughness to the silicone rubber, and the overlapped plate material with different surface roughness produced different overlapping strength. The maximum tensile force that can be sustained by the lap joint with 60 mesh to 100 mesh sandpaper increased from 1.858 kN to 2.063 kN, and the overlap strength increased gradually. The maximum tensile force that can be sustained by the lap joint with 100-400 mesh sandpaper was reduced from 1.563 kN to 1.567 kN, and the overlap strength is reduced gradually. The control group has no surface treatment of the plate lap joints, can withstand the maximum tensile force of 1.380 kN, is the lowest overlap strength. So for the pvc plastic sheet and silicone rubber lap joints, with 100 mesh sandpaper grinding,the lap performance is the best.

关键词

聚氯乙烯表面粗糙度粘接搭接强度

Keywords

Polyvinyl chlorideSurface roughnessBondingLap strength

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