Rubber Rapid Plasticity Tester

JP-300 Rapid Plasticity Tester

(1)Overview

JP-300Rapid plasticity meterCan measure the rapid plasticity value of raw rubber and uncured rubber compoundGB/T3510-2006Rapid plasticity methodAnd alsocomply withGB/T3517-2014Natural rubber plasticity retention rate（PRI）The determination. MeetsISO2007andISO2930Technical requirements for instruments. The instrument is easy and fast to operate. Easy to maintain, easy to calibrate, high accuracy, and good stability.

(II)compose

JP-300The rapid plasticity tester consists of four parts: the main unit, the cutting blade slicer, the thickness gauge, and the aging box.

(3)principle

JP-300The basic working principle of the Type Rapid Plasticity Tester is that when two pieces have a temperature of100℃ parallel plate, with the upper pressing plate fixed to the moving crossbeam and the lower pressing plate being a movable parallel plate. First, compress the sample into1mmand maintain15sAfter the sample temperature reaches the specified temperature, apply100NThe force value,15sMeasure the distance change between two parallel plates, and J confirms it0.01mmThis value represents the compressibility of the specimen, i.e. the rapid plasticity valuePo.

1JP-300The rapid plasticity meter can be used to measure the plasticity retention rate of natural rubber（PRI）The basic method is to divide the same sample into two groups, with one group directly measuring the initial plastic valuePoThe other group is placed in a dedicated aging boxSample aging:(Aging box has4Aging sample disk, capable of aging simultaneously48Sample pieces, all aging temperatures are at140±0.2℃。

aging30minAfterwards, measure its plasticity valueP₃₀ ,Calculate the two sets of data using the following experiment:

PRI=×100 ％

among whichPom-----------Median plasticity before aging

P_.30 m----------Median plasticity after aging

thatPRIThe value represents the antioxidant performance of natural rubber, and the higher the value, the better the antioxidant performance.

1Instrument Description

(1)host

1Principle and Structure

The host consists of four parts: load, sample deformation display table, control of test time, and operating mechanism.

The fixed load required for the experiment is generated by a lever hammer. During the experiment, after preheating15sAfterwards, the electromagnetic coil installed inside the plasticity meter is energized, and the lever heavy hammer is loaded, so that the pressure head applies a load to the sheet-like sample installed between the upper and lower pressure plates. The plasticity of the sample is determined by the plasticity of the sample installed on the lifting beamDigital DisplayTable display.

In order to avoid heat loss and ensure constant temperature, insulation pads are installed on both the upper and lower pressure plates. To meet the testing requirements of rubber materials with different hardness, in addition to installing diameters1cmOne large pressure plate each, which can be replaced according to the softness or hardness of the rubber to ensure that the dial gauge is in good condition0.2～0.9mmTo improve testing accuracy.

2Electrical principle

3Technical Specifications

Power supply: Single AC 220Vpower80W

Test pressure: 100±1N（10.197kg）

Tension of crossbeam tension rod spring≥300N

Preheating time:15+1S

Test time:15±0.2S

Upper pressure plate specification: ￠7.3±0.02mm￠10±0.02mm￠14.0±0.02mmeffective height3.2mm

Lower pressure plate specification: ￠0.5mm

Mold chamber temperature:100±1℃