Article
  • Adhesion Strength of Amorphous Polymer Interfaces by Solvent Welding
  • Jeong YH, Kang DW, Kang HJ
  • Solvent 용접에 의한 무정형 고분자 계면의 접착강도 변화에 관한 연구
  • 정연호, 강두환, 강호종
Abstract
Autoadhesion strength of PS/PS interfaces in solvent welding was determined as a function of processing conditions by butt joint test. It was verified that the chain mobility and surface roughness at PS/PS interface were enhanced by the applied solvent having a similar solubility parameter as PS and resulted in the dramatic improvement of autuadhesion strength at PS/PS interface. It was found that the mechanism of solvent welding is dependent upon the chain mobility due to the diffusion of solvent to PS interface and the contact area at interface. When the welding temperature is lower than the boiling point of applied solvent, the effect of chain mobility on autoadhesion strength was dominated, while contanct area took more important role when welding temperature is above the boiling point of solvent, Autoadhesion strength increased with increasing contact time and contact temperature but the effect of solvent on autoadhesion strength became smaller.

Solvent 용접에 따른 무정형 고분자 폴리스티렌/폴리스티렌 계면의 접착강도의 변화를 butt joint실험을 통하여 살펴보았다. 폴리스티렌과 용해도 상수가 유사한 용매를 계면에 코팅함으로써 계면 분자쇄의 유동성 증가과 계면의 거침정도의 변화에 따른 접촉표면의 증가로 인하여 접착강도가 증가함을 확인하였다. 사용용매의 비등점이 접착온도와보다 높은 경우, 접착강도의 증가는 용매에 의한 분자쇄의 유동성 증가에 기인되는 반면 용매의 비등점이 접착온도에 비해 낮을 경우 접착강도의 증가는 용매에 의한 접촉표면의 증가에 의존함을 알수 있었다. 접착온도가 높을수록, 접착시간이 길어질수록 접착강도는 증가되며, 사용용매가 접착강도에 미치는 영향은 감소함을 알 수 있었다.

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2000; 24(1): 23-28

    Published online Jan 25, 2000

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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