ROLE OF PHENOLIC TACKIFIERS IN POLYISOPRENE RUBBER

被引：20

作者：

MAGNUS, FL ^{[1
]}

HAMED, GR ^{[1
]}

机构：

[1] UNIV AKRON,COLL POLYMER SCI & POLYMER ENGN,AKRON,OH 44325

来源：

RUBBER CHEMISTRY AND TECHNOLOGY | 1991年 / 64卷 / 01期

关键词：

D O I：

10.5254/1.3538541

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The purpose of this paper is to investigate the mechanism by which a common phenolic tackifier, added at a low level, acts in a synthetic polyisoprene compound. The effect of p-tert-octyl phenolic (PTOP) resin on the tack of an IR/N660 compound has been studied before and after aging. The phenolic resin has little effect on unaged tack. Upon aging at 23°C and 45% RH, autohesion of the IR/N660 significantly decreases. However, when the PTOP resin is added, tack is maintained during aging. FT-IR attenuated total reflectance analyses indicate that, upon aging, oxidation leads to cis → trans isomerization. The PTOP resin becomes enriched in the surface region and protects the IR from further oxidation and the accompanying cis → trans isomerization. Additionally, solubilized resin may behave as a plasticizer to enhance tack bond formation. A compound with phenolic monomer (PTOP resin precursor) forms a rapid bloom with aging and experiences rapid tack loss.

引用

页码：65 / 73

页数：9

共 17 条

[1]

AUBREY DW, 1973, J POLYM SCI CHEM ED, V17, P3423

[2]

Belerossova A. G., 1956, COLLOID J RUSS ACAD+, V18, P139

[3]

Burhans AS, 1963, RUBBER AGE, V92, P745

[4]

FORBES WG, 1958, T IRI, V30, P154

[5] TACK AND GREEN STRENGTH OF ELASTOMERIC MATERIALS [J].

HAMED, GR .

RUBBER CHEMISTRY AND TECHNOLOGY, 1981, 54 (03) :576-595

[6] RELATIONSHIP BETWEEN THE COHESIVE STRENGTH AND THE TACK OF ELASTOMERS [J].

HAMED, GR ;

SHIEH, CH .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1983, 21 (08) :1415-1425

[7] TACK AND GREEN STRENGTH OF NR, SBR AND NR-SBR BLENDS [J].

HAMED, GR .

RUBBER CHEMISTRY AND TECHNOLOGY, 1981, 54 (02) :403-414

[8]

HOCK CW, 1963, J POLYM SCI C, V3, P139

[9]

Powers P.O., 1963, RUBBER CHEM TECHNOL, V36, P1542, DOI [10.5254/1.3539653, DOI 10.5254/1.3539653]

[10]

SCHLADEMAN JA, 1977, OCT M RUBB DIV AM CH

← 1 2 →