SU1706893A1 - Laminated material - Google Patents

Description

ve Sutadiene-nitrile rubber (grade 9831) or a combination of butadiene-nitrile rubber with nairite (brand NO-68-1) and the resulting billet is vulcanized according to the mode: temperature () ° С, specific pressing pressure of 7 MPa, time 10-15 min A laminate is obtained with a fluoropl-CTOBWM layer of 0.4 mm, a rubber layer of 4.0 mm (determined by the size of the mold) and two layers of adhesives with a thickness of 10 µm each.

To obtain the required thickness of the adhesives, the concentrations of the applied adhesives are calculated by the equation

g ha Snoe Pa Ck ----- pj-,

where Ck is the concentration of glue;

Pk - glue weight;

ha is the thickness of the adhesive layer; ra - adhesive density;

Snoe. - surface area on which the adhesive is applied.

The density of Armlock-01 adhesive is 1.75 g / cm3; Armlock-11 adhesive density is 1.53 g / cm3,

Apply each glue in an amount of 5 g per surface, the area of which is 5p. SO cm2, and setting the value of ha. equal to the required value, from the above equation it is possible to calculate the required concentration of the adhesive Ck.

To obtain a laminate, Armlock-01 and Armlock-11 glue will be used.

manufactured according to TU 6-01-4-50-84 with a concentration of (22 + 2)%, which are diluted or dried to obtain a concentration calculated by the above equation.

what provides the creation of an adhesive of the required thickness.

The material produced in this way is tested to determine the adhesive strength of the bond between the rubber and fluoroplastic layers during delamination, conditional tensile strength, elongation and fatigue endurance of the material during repeated stretching at a frequency of 35 cycles / min and amplitudes of 50 and 300%.

The design and properties of the known and proposed layered materials are presented in the table.

Claims (1)

Invention Formula Laminated material including a layer of fluoroplastic and a layer of rubber, that is, and so on. that in order to increase the fatigue endurance of the material when repeated stretching, between these layers, there are two layers of adhesives with a thickness of 10-17 μm each, while the adhesive side of the fluoroplast is the adhesive Armlock-01 based on a combination of chlorinated natural rubber with novolac phenol-formaldehyde resin, and from the side of the rubber - adhesive Armlock -11 based on brominated dichlorobutadiene. Note: K-control (outrageous) examples; sraon. - examples for comparison