CN103524956A - Modified particle-containing sealing ring - Google Patents

Abstract

The invention discloses a modified particle-containing sealing ring which is prepared from the following raw materials in parts by weight: 100-105 parts of fluororubber 246, 20-25 parts of mica powder, 10-15 parts of hydrotalcite powder, 4-5 parts of barium stearate, 4-5 parts of polyamide wax micropowder, 2-3 parts of triethylene glycol di-2-ethylhexoate, 1-2 parts of N,N'-phenylene bismaleimide, 2-3 parts of white oil, 1-2 parts of antioxidants DSTP, 1-2 parts of dibasic lead phosphite, 1-2 parts of anti-aging agents AW, 1-2 parts of accelerating agents DM, 0.8-1 part of vulcanizing agents DCBP and 10-15 parts of modified particles. The modified particle-containing sealing ring disclosed by the invention is excellent in tensile property, tear-resistant property, oil-resistant property and corrosion-resistant property, improves the compatibility among materials by adding the modified particles, and enhances the physical property and weather resistance of a finished product.

Description

A kind of sealing-ring containing modified particle

Technical field

The present invention relates generally to a kind of sealing-ring, relates in particular to a kind of sealing-ring containing modified particle.

Background technology

Fluoroelastomer is that the performance at excellent flame retardant resistance, excellent resistance to air loss, high temperature resistant, resistance to ozone, weather, resistance to oxidation, resistance to mineral oil, fuel oil resistance, hydraulic pressure resistant oil, resistance to aromatic series and many organic solvents and chemicals is famous with it, the sealing-ring made from viton is widely used, superior performance.

Summary of the invention

The object of the invention is just to provide a kind of sealing-ring containing modified particle.

The present invention is achieved by the following technical solutions:

Containing the sealing-ring of modified particle, it is comprised of the raw material of following weight parts:

Fluororubber 246 100-105, mica powder 20-25, neatly stone flour 10-15, barium stearate 4-5, polyamide wax micropowder 4-5, triglycol two 2-ethylhexoate 2-3, N, N '-penylene bismaleimides 1-2, white oil 2-3, oxidation inhibitor DSTP 1-2, dibasic lead phosphite 1-2, antioxidant A W 1-2, altax 1-2, vulcanizing agent DCBP0.8-1, modified particle 10-15;

Described modified particle is comprised of the raw material of following weight parts:

Polyvinyl chloride resin 90-100, aluminium nitride 10-15, saturated fatty alcohol dibasic acid ester 2-3, γ-aminopropyl triethoxysilane 1-2, TDE 1-2, lead cyanurate 0.1-0.2;

Above-mentioned polyvinyl chloride resin sealing is ground, then the dicarboxylic ester, the lead cyanurate that add saturated fatty alcohol, blending and stirring 10-12 minute at 100-120 ℃, reduction temperature is 50-60 ℃, adds aluminium nitride, γ-aminopropyl triethoxysilane, 600-800 rev/min of dispersed with stirring 4-6 minute, add each raw material of residue, fully stir, add twin screw extruder extruding pelletization, obtaining particle diameter is 2-3 μ m.

A preparation method for the sealing-ring of modified particle, comprises the following steps:

Above-mentioned mica powder, neatly stone flour are mixed, under agitation condition, add successively barium stearate, polyamide wax micropowder, white oil, at 50-60 ℃, constant temperature insulation 10-20 minute, adds triglycol two 2-ethylhexoates, after fully stirring, is cooled to normal temperature, add each raw material of residue except vulcanizing agent DCBP, altax, mixing, compression moulding, adds each raw material of residue, carry out sulfidizing, obtain the described sealing-ring containing modified particle.

Advantage of the present invention is:

Sealing-ring stretch-proof, anti tear, oil resistant, corrosion resistance nature that the present invention produces are strong, improve the consistency that adds modified particle to improve each storeroom, have improved physicals and the weather resisteant of finished product.

Embodiment

Embodiment 1

Containing the sealing-ring of modified particle, it by following weight parts (kilogram) raw material form:

Fluororubber 246 105, mica powder 25, neatly stone flour 15, barium stearate 5, polyamide wax micropowder 5, triglycol two 2-ethylhexoates 2, N, a N '-penylene bismaleimides 2, white oil 2, oxidation inhibitor DSTP 2, dibasic lead phosphite 1, antioxidant A W 1, altax 1, vulcanizing agent DCBP0.8, modified particle 15;

Described modified particle is comprised of the raw material of following weight parts:

Polyvinyl chloride resin 100, aluminium nitride 15, saturated fatty alcohol dibasic acid ester 3, γ-aminopropyl triethoxysilane 2, TDE 1, lead cyanurate 0.2;

Above-mentioned polyvinyl chloride resin sealing is ground, then the dicarboxylic ester, the lead cyanurate that add saturated fatty alcohol, at 120 ℃, blending and stirring is 12 minutes, reducing temperature is 50 ℃, adds aluminium nitride, γ-aminopropyl triethoxysilane, 800 revs/min of dispersed with stirring 4 minutes, add each raw material of residue, fully stir, add twin screw extruder extruding pelletization, obtaining particle diameter is 3 μ m.

A preparation method for the sealing-ring of modified particle, comprises the following steps:

Above-mentioned mica powder, neatly stone flour are mixed, under agitation condition, add successively barium stearate, polyamide wax micropowder, white oil, at 60 ℃, constant temperature insulation is 20 minutes, adds triglycol two 2-ethylhexoates, after fully stirring, is cooled to normal temperature, add each raw material of residue except vulcanizing agent DCBP, altax, mixing, compression moulding, adds each raw material of residue, carry out sulfidizing, obtain the described sealing-ring containing modified particle.

Performance test:

Claims (2)

1. containing the sealing-ring of modified particle, it is characterized in that what it was comprised of the raw material of following weight parts:

Fluororubber 246 100-105, mica powder 20-25, neatly stone flour 10-15, barium stearate 4-5, polyamide wax micropowder 4-5, triglycol two 2-ethylhexoate 2-3, N, N '-penylene bismaleimides 1-2, white oil 2-3, oxidation inhibitor DSTP 1-2, dibasic lead phosphite 1-2, antioxidant A W 1-2, altax 1-2, vulcanizing agent DCBP0.8-1, modified particle 10-15;

Described modified particle is comprised of the raw material of following weight parts:

Polyvinyl chloride resin 90-100, aluminium nitride 10-15, saturated fatty alcohol dibasic acid ester 2-3, γ-aminopropyl triethoxysilane 1-2, TDE 1-2, lead cyanurate 0.1-0.2;

Above-mentioned polyvinyl chloride resin sealing is ground, then the dicarboxylic ester, the lead cyanurate that add saturated fatty alcohol, blending and stirring 10-12 minute at 100-120 ℃, reduction temperature is 50-60 ℃, adds aluminium nitride, γ-aminopropyl triethoxysilane, 600-800 rev/min of dispersed with stirring 4-6 minute, add each raw material of residue, fully stir, add twin screw extruder extruding pelletization, obtaining particle diameter is 2-3 μ m.

2. a preparation method for the sealing-ring containing modified particle as claimed in claim 1, is characterized in that comprising the following steps:

Above-mentioned mica powder, neatly stone flour are mixed, under agitation condition, add successively barium stearate, polyamide wax micropowder, white oil, at 50-60 ℃, constant temperature insulation 10-20 minute, adds triglycol two 2-ethylhexoates, after fully stirring, is cooled to normal temperature, add each raw material of residue except vulcanizing agent DCBP, altax, mixing, compression moulding, adds each raw material of residue, carry out sulfidizing, obtain the described sealing-ring containing modified particle.