CN104893043A - Shock-reducing rubber - Google Patents

Abstract

The invention discloses shock-reducing rubber which is prepared from the following raw materials in parts by weight: 70-80 parts of chloroprene rubber, 10-15 parts of cis-polybutadiene, 1-3 parts of stearic acid, 1-3 parts of zinc oxide, 1-2 parts of an anti-aging agent and 8-15 parts of carbon black. The shock-reducing rubber is good in buffer performance and shock reducing property, can resist aging deformation, is long in service life, has good heat resistance, and cannot deform when in direct sunlight in summer; and compared with the existing shock-reducing rubber with the same hardness, the deformation quantity of the shock-reducing rubber disclosed by the invention is obviously reduced in a compressive state, and the supporting capacity of the shock-reducing rubber is better. Compared with the shock-reducing rubber with equivalent static rigidity, the dynamic rigidity of the shock-reducing rubber disclosed by the invention is obviously reduced, the dynamic to static ratio is smaller, and the creep deformation is lower, which means that the shock reducing property of the shock-reducing rubber disclosed by the invention is better.

Description

A kind of yielding rubber

Technical field

The present invention relates to rubber manufacturing technology field, be specifically related to a kind of yielding rubber.

Background technology

Shock absorbing rubber product, for eliminating or reduce the transmission of mechanical shock, reaches damping, noise reduction and reduces and impact caused harm.String etc. is protected comprising rubber absorbers, rubber bumper (block, pad), rubber connector, pneumatic cushioning and rubber.For the rubber product that gum or narrow fabrics, metallic framework strengthen, generally manufacture by compression molding.Be widely used in the industries such as building construction, mechanical means, vehicle, naval vessel and instrument.

As everyone knows, rubber damping product, particularly support class vibroshock, buffer blocks etc. are under larger pressure, as draught is comparatively large, the elasticity of rubber cannot show, and its damping effect will reduce greatly, even can cause the effect that cannot reach vibration isolation, damping, therefore, how to reduce the creep of yielding rubber, to reduce rubber draught under compression, thus obtain excellent support ability and damping effect, be that this area is expected always.

Summary of the invention

The object of the invention is to provide a kind of yielding rubber, to solve many defects that prior art deficiency causes.

A kind of yielding rubber, it is made up of the raw material of following weight part:

Chloroprene rubber 70 ~ 80 parts;

Cis-1,4-polybutadiene rubber 10 ~ 15 parts;

Stearic acid 1 ~ 3 part;

1 ~ 3 part, zinc oxide;

1 ~ 2 part, anti-aging agent;

Carbon black 8 ~ 15 parts.

Preferably, described anti-aging agent is the mixture of antioxidant A and antioxidant 4010NA.

Preferably, described carbon black is carbon black SRF.

The invention has the advantages that, this kind of yielding rubber, shock-absorbing capacity is good, and damping property is good, anti-aging distortion, and long service life has good heat impedance, is directly shone summer also can not be out of shape by the sun; Compared with the existing yielding rubber of similar stiffness, damping rubber of the present invention deflection under compression obviously reduces, and supporting capacity is better.Compared with having the yielding rubber of suitable static rigidity, yielding rubber of the present invention dynamic stiffness under same frequency obviously reduces, and the output ratio of Q-switching to free running is less, and creep is lower, means that its damping performance is better.

Embodiment

Below in conjunction with embodiment, the present invention is further detailed explanation.

A kind of yielding rubber, it is made up of the raw material of following weight part:

Chloroprene rubber 72 parts;

Cis-1,4-polybutadiene rubber 12 parts;

Stearic acid 2 parts;

3 parts, zinc oxide;

1 part, anti-aging agent;

Carbon black 10 parts.

It should be noted that described anti-aging agent is the mixture of antioxidant A and antioxidant 4010NA.

In this example, described carbon black is carbon black SRF.

Based on above-mentioned, this kind of yielding rubber, shock-absorbing capacity is good, and damping property is good, anti-aging distortion, and long service life has good heat impedance, is directly shone summer also can not be out of shape by the sun; Compared with the existing yielding rubber of similar stiffness, damping rubber of the present invention deflection under compression obviously reduces, and supporting capacity is better.Compared with having the yielding rubber of suitable static rigidity, yielding rubber of the present invention dynamic stiffness under same frequency obviously reduces, and the output ratio of Q-switching to free running is less, and creep is lower, means that its damping performance is better.

Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in right of the present invention the change of the above embodiment, modification.

Claims (3)

1. a yielding rubber, is characterized in that, it is made up of the raw material of following weight part:

Chloroprene rubber 70 ~ 80 parts;

Cis-1,4-polybutadiene rubber 10 ~ 15 parts;

Stearic acid 1 ~ 3 part;

1 ~ 3 part, zinc oxide;

1 ~ 2 part, anti-aging agent;

Carbon black 8 ~ 15 parts.

2. a kind of yielding rubber according to claim 1, is characterized in that, described anti-aging agent is the mixture of antioxidant A and antioxidant 4010NA.

3. a kind of yielding rubber according to claim 1, is characterized in that, described carbon black is carbon black SRF.