GB/T 31333-2014Dipped cords—Test methods adhesion strength (English PDF)

1 Scope

This standard specifies the test methods for extraction using T- vulcanized rubber dipped cord and adhesion strength assay.

This standard applies to the manufacture of chemical fibers dipped soft cord, dipped fiberglass dipped hard cord and rope made of fiberglass and cured

Rubber adhesion strength was measured performance can also be used to manufacture chemical fiber yarn dipped, dipped cord and adhesion strength properties of vulcanized rubber

Determination.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 6038 Rubber test feed ingredients, mixing and vulcanization - Equipment and procedures

GB/T 6529 Textiles Standard conditioning and testing atmosphere

GB/T 8170 repair value expressed about the rules and limit values and judgment

GB/T 16491 electronic universal testing machine

3 Test principle

The T-shaped rubber samples after vulcanization of the rubber dipped cord is made, place the test fixture using a tensile testing machine measuring dipping line

The force required rope extracted from the vulcanized rubber block, as shown in Figure 1, the extracted extraction force than the cord thickness direction of the rubber block is dipping line

Bond strength rope with which to evaluate the static adhesive bond strength performance dipped cord and vulcanized rubber.

Explanation.

1 --- dipped cord;

2 --- rubber block.

Figure 1 T- drawn schematic

4 instruments and equipment