ISO 584:1982 PDF

Name: ISO 584:1982 — Plastics — Unsaturated polyester resins — Determination of reactivity at 80 degrees C (conventional method)
SKU: ISO 584:1982
Price: 25 EUR
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Plastics — Unsaturated polyester resins — Determination of reactivity at 80 degrees C (conventional method)

Название (английский):

ISO 584:1982

Plastics — Unsaturated polyester resins — Determination of reactivity at 80 degrees C (conventional method)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 3
Дата публикации:: 1 декабря 1982 г.
Издание:: ISO IS 584 edition 1 version 1
ICS:: 83.080.10

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Цена:45 €

Описание (английский):

Specifies a method for the determination of the reactivity of unsaturated polyester resins as characterized by the maximum temperature reached when heated with catalyst in a water-bath at 80 °C and by the time taken for the temperatur of the mixture to rise from 65 °C to this maximum temperature. As the test results depend very much on the conditions under which the test is carried out, these conditions are described in detail.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 584:1982 specifies a conventional laboratory method to determine the reactivity of unsaturated polyester resins by measuring the exothermic temperature rise when a resin–catalyst mixture is heated in a thermostatted water bath at 80 °C. The test characterizes reactivity by the maximum temperature (Tmax) reached and the time taken for the mixture to rise from 65 °C to Tmax (and, if Tmax > 90 °C, the time from 65 °C to 90 °C). The standard emphasizes strict control of test conditions because results are highly dependent on apparatus and procedure.

Key topics and requirements

Test composition: Typical mixing uses 100 parts resin with 1 part active benzoyl peroxide (implemented in practice by adding 2 g of a 50% benzoyl peroxide in dibutyl phthalate mixture to 100 g resin).

Test environment: Water bath maintained at 80 ± 0.5 °C with circulation and stirring.

Apparatus: Specified test-tube (borosilicate glass) dimensions (internal diameter 18 ± 1 mm, length 210 ± 5 mm), centrally located thermocouple, iron-constantan thermocouple wires with a small welded junction (≤ 2 mm), balance (0.01 g), and stopwatch or recorder.

Measured parameters: Maximum temperature (Tmax) and time to rise from 65 °C to Tmax; where Tmax exceeds 90 °C also report time to 90 °C.

Precision and repeatability: Repeat tests until two consecutive determinations differ by no more than 5 °C in temperature and 10% in time.

Safety note: Handling pure benzoyl peroxide is hazardous-standard warns to observe appropriate safety precautions.

Reporting: Include identification of resin, thermocouple type, individual and average Tmax and times, any deviations from the prescribed conditions, and recorded temperature–time traces if used.

Applications and who uses it

Quality control laboratories in polyester resin manufacturing for lot acceptance and batch comparison.

R&D and formulation teams evaluating catalyst systems, accelerators, or resin modifications.

Process engineers in composites, laminating, casting and molding industries who need to predict curing behavior, pot life, and peak exotherm.

Suppliers and purchasers comparing relative reactivity of similar unsaturated polyester resins under standardized conditions.

Related standards

ISO 584:1982 replaces earlier ISO Recommendation R 584 (1967). Users commonly pair ISO 584 results with other ISO test methods for mechanical, chemical or curing properties of polyester systems when developing specifications or processing windows.

Keywords: ISO 584, unsaturated polyester resins, reactivity determination, 80 °C test, benzoyl peroxide, Tmax, polymerization rate, water-bath method, thermocouple.

ISO 584:1982 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and who uses it

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