CN104045859A - RHE synthetic rubber and preparation method thereof - Google Patents

Abstract

The invention discloses RHE synthetic rubber and a preparation method thereof. The RHE synthetic rubber comprises the components in parts by weight: 45-55 parts of solid-state first-class smoke sheet rubber, 15-25 parts of ethylene-propylene-diene monomer synthetic rubber, 15-25 parts of a liquid natural latex, 8-12 parts of a hydrogen-containing rubber powder, 22-28 parts of semi-reinforcing SRF, 35-45 parts of fast extruding furnace black FEF, 16-20 parts of a hydrated magnesium silicate superfine powder, 20-24 parts of highly aromatic oil, 4-6 parts of phenolic resin, 4-6 parts of zinc oxide, 0.5-0.8 part of stearic acid SA, 0.5-1.5 parts of zinc stearate, 1-2 parts of low-molecular wax, 4-5 parts of a vulcanizing agent, and 2-2.5 parts of an accelerant. The RHE synthetic rubber has the advantages of high temperature resistance, low temperature resistance, long service life and the like.

Description

A kind of RHE synthetic rubber and preparation method thereof

Technical field

The present invention relates to a kind of RHE synthetic rubber and preparation method thereof, be applied to the elastomeric preparation field of RHE.

Background technology

At present, synthetic rubber is widely used, but not only intensity is not high for the RHE synthetic rubber of producing by existing method, and non-refractory and low temperature, and work-ing life is shorter.

Summary of the invention

For solving the defect of prior art scheme, the invention discloses RHE synthetic rubber of high, the high temperature resistant and low temperature of a kind of intensity, long service life and preparation method thereof.

The invention discloses a kind of RHE synthetic rubber and preparation method thereof, by weight, comprising: solid-state one-level smoke sheet rubber 45-55 part, Ethylene Propylene Terpolymer synthetical glue 15-25 part, liquid natural latex 15-25 part, hydrogeneous rubber powder 8-12 part, half reinforcement SRF 22-28 part, extrude FEF 35-45 part, hydrated magnesium silicate ultrafine powder 16-20 part, high aromatic oil 20-24 part, resol 4-6 part, zinc oxide 4-6 part, stearic acid SA 0.5-0.8 part, Zinic stearas 0.5-1.5 part, low-molecular-weight wax 1-2 part, vulcanizing agent 4-5 part, promotor 2-2.5 part soon.

The order number of described hydrated magnesium silicate ultrafine powder is not less than 1200 orders, and described vulcanizing agent adopts dimorpholinyl disulfide, and described promotor adopts thiazolesulfenamide.

A kind of RHE synthetic rubber of the present invention and preparation method thereof, concrete steps are as follows:

Step 1: respectively solid-state one-level smoke sheet rubber, Ethylene Propylene Terpolymer synthetical glue, liquid natural latex, hydrogeneous rubber powder are plasticated by mill thin-pass at≤100 DEG C, then normal temperature is parked 24 hours;

Step 2: the temperature of Banbury mixer is made as to 110 ± 5 DEG C, pressure is made as 6Mpa, the solid-state one-level smoke sheet rubber, Ethylene Propylene Terpolymer synthetical glue, liquid natural latex, the hydrogeneous rubber powder that in Banbury mixer, add successively sequentially step 1 to obtain, be 5 minutes interval time, at Banbury mixer banburying 15-30 minute;

Step 3: by hydrogeneous rubber powder, half reinforcement, extrude FEF, hydrated magnesium silicate ultrafine powder, high aromatic oil soon and add Banbury mixer, banburying 5-10 minute simultaneously;

Step 4: resol, zinc oxide, stearic acid SA, Zinic stearas, low-molecular-weight wax are added to Banbury mixer simultaneously, discharging after banburying 8-10 minute in Banbury mixer, normal temperature is parked 24-72 hour;

Step 5: the sizing material of step 4 gained is added to mill, at≤100 DEG C, add vulcanizing agent, promotor, thin-pass is plasticated, and stamps triangle bag 5 times, lower, thin-pass thickness is 0.5mm.

By adopting technique scheme, the present invention has following useful advantage:

1, high temperature resistant and low temperature;

2, intensity improves;

3, long service life.

Embodiment

The invention discloses a kind of RHE synthetic rubber and preparation method thereof, by weight, comprising: solid-state one-level smoke sheet rubber 45-55 part, Ethylene Propylene Terpolymer synthetical glue 15-25 part, liquid natural latex 15-25 part, hydrogeneous rubber powder 8-12 part, half reinforcement SRF 22-28 part, extrude FEF 35-45 part, hydrated magnesium silicate ultrafine powder 16-20 part, high aromatic oil 20-24 part, resol 4-6 part, zinc oxide 4-6 part, stearic acid SA 0.5-0.8 part, Zinic stearas 0.5-1.5 part, low-molecular-weight wax 1-2 part, vulcanizing agent 4-5 part, promotor 2-2.5 part soon.

The order number of described hydrated magnesium silicate ultrafine powder is not less than 1200 orders, and described vulcanizing agent adopts dimorpholinyl disulfide, and described promotor adopts thiazolesulfenamide.

A kind of RHE synthetic rubber of the present invention and preparation method thereof, concrete steps are as follows:

Step 1: respectively solid-state one-level smoke sheet rubber, Ethylene Propylene Terpolymer synthetical glue, liquid natural latex, hydrogeneous rubber powder are plasticated by mill thin-pass at≤100 DEG C, then normal temperature is parked 24 hours;

Step 2: the temperature of Banbury mixer is made as to 110 ± 5 DEG C, pressure is made as 6Mpa, the solid-state one-level smoke sheet rubber, Ethylene Propylene Terpolymer synthetical glue, liquid natural latex, the hydrogeneous rubber powder that in Banbury mixer, add successively sequentially step 1 to obtain, be 5 minutes interval time, at Banbury mixer banburying 15-30 minute;

Step 3: by half reinforcement SRF, extrude FEF, hydrated magnesium silicate ultrafine powder, high aromatic oil soon and add Banbury mixer, banburying 5-10 minute simultaneously;

Step 4: resol, zinc oxide, stearic acid SA, Zinic stearas, low-molecular-weight wax are added to Banbury mixer simultaneously, discharging after banburying 8-10 minute in Banbury mixer, normal temperature is parked 24-72 hour;

Step 5: the sizing material of step 4 gained is added to mill, at≤100 DEG C, add vulcanizing agent, promotor, thin-pass is plasticated, and stamps triangle bag 5 times, lower, thin-pass thickness is 0.5mm.

Embodiment mono-

Step 1: respectively 50 parts of solid-state one-level smoke sheet rubbers, 20 parts of Ethylene Propylene Terpolymer synthetical glues, 20 parts of liquid natural latexes, 10 parts of hydrogeneous rubber powders are plasticated by mill thin-pass at≤100 DEG C, then normal temperature is parked 24 hours;

Step 2: the temperature of Banbury mixer is made as to 110 ± 5 DEG C, pressure is made as 6Mpa, the solid-state one-level smoke sheet rubber, Ethylene Propylene Terpolymer synthetical glue, liquid natural latex, the hydrogeneous rubber powder that in Banbury mixer, add successively sequentially step 1 to obtain, be 5 minutes interval time, Banbury mixer banburying 20 minutes;

Step 3: 25 part of half reinforcement SRF, 40 parts of fast extrusion FEF, 18 parts of hydrated magnesium silicate ultrafine powders, 22 parts of high aromatic oils are added to Banbury mixer, banburying 5 minutes simultaneously;

Step 4: 5 parts of resol, 5.5 parts of zinc oxide, 0.8 part of stearic acid SA, 1 part of Zinic stearas, 1.5 parts of low-molecular-weight wax are added to Banbury mixer simultaneously, banburying discharging after 10 minutes in Banbury mixer, normal temperature is parked 24 hours;

Step 5: the sizing material of step 4 gained is added to mill, at≤100 DEG C, add 4.5 parts of dimorpholinyl disulfides, 2.2 parts of thiazolesulfenamides, thin-pass is plasticated, and stamps triangle bag 5 times, and lower, thin-pass thickness is 0.5mm.

Finally it should be noted that: above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this specification sheets has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the present invention; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in claim scope of the present invention.

Claims (3)

1. RHE synthetic rubber and preparation method thereof, by weight, it is characterized in that: comprising: solid-state one-level smoke sheet rubber 45-55 part, Ethylene Propylene Terpolymer synthetical glue 15-25 part, liquid natural latex 15-25 part, hydrogeneous rubber powder 8-12 part, half reinforcement SRF 22-28 part, extrude FEF 35-45 part, hydrated magnesium silicate ultrafine powder 16-20 part, high aromatic oil 20-24 part, resol 4-6 part, zinc oxide 4-6 part, stearic acid SA 0.5-0.8 part, Zinic stearas 0.5-1.5 part, low-molecular-weight wax 1-2 part, vulcanizing agent 4-5 part, promotor 2-2.5 part soon.

2. a kind of RHE synthetic rubber according to claim 1 and preparation method thereof, it is characterized in that: the order number of described hydrated magnesium silicate ultrafine powder is not less than 1200 orders, described vulcanizing agent adopts dimorpholinyl disulfide, and described promotor adopts thiazolesulfenamide.

3. a kind of RHE synthetic rubber according to claim 1 and preparation method thereof, is characterized in that: concrete steps are as follows:

Step 1: respectively solid-state one-level smoke sheet rubber, Ethylene Propylene Terpolymer synthetical glue, liquid natural latex, hydrogeneous rubber powder are plasticated by mill thin-pass at≤100 DEG C, then normal temperature is parked 24 hours;

Step 2: the temperature of Banbury mixer is made as to 110 ± 5 DEG C, pressure is made as 6Mpa, the solid-state one-level smoke sheet rubber, Ethylene Propylene Terpolymer synthetical glue, liquid natural latex, the hydrogeneous rubber powder that in Banbury mixer, add successively sequentially step 1 to obtain, be 5 minutes interval time, at Banbury mixer banburying 15-30 minute;

Step 3: by hydrogeneous rubber powder, half reinforcement, extrude FEF, hydrated magnesium silicate ultrafine powder, high aromatic oil soon and add Banbury mixer, banburying 5-10 minute simultaneously;

Step 4: resol, zinc oxide, stearic acid SA, Zinic stearas, low-molecular-weight wax are added to Banbury mixer simultaneously, discharging after banburying 8-10 minute in Banbury mixer, normal temperature is parked 24-72 hour;

Step 5: the sizing material of step 4 gained is added to mill, at≤100 DEG C, add vulcanizing agent, promotor, thin-pass is plasticated, and stamps triangle bag 5 times, lower, thin-pass thickness is 0.5mm.