CN103387727B

CN103387727B - A kind of sealing ring that connects

Info

Publication number: CN103387727B
Application number: CN201310279620.9A
Authority: CN
Inventors: 张开会; 陶庭鸿; 张火生
Original assignee: WUHU YINHONG HYDRAULIC COMPONENTS CO Ltd
Current assignee: WUHU YINHONG HYDRAULIC COMPONENTS CO Ltd
Priority date: 2013-07-04
Filing date: 2013-07-04
Publication date: 2016-05-18
Anticipated expiration: 2033-07-04
Also published as: CN103387727A

Abstract

The invention discloses a kind of sealing ring that connects, does is it made up of the raw material of following weight parts: fluororubber 23? 94-100, neoprene CR121? 10-14, precipitated calcium carbonate 16-20, calcite in powder 3-4, glycerine glycerinate 3-4, trimethylolpropane 1-3, cetomacrogol 1000? 2-4, magnesia 1-2, antioxidant A W1-2, N-isopropyl-N '-diphenyl-para-phenylene diamine 1-2, altax? 0.9-1, sodium hydrogen phosphate 1-2, polyimides 1-2, tributyl tin trichloride 0.2-0.4, reinforcing agent 15-20, tetramethylthiuram disulfide 0.8-1; The axial straight line frictional force of sealing ring of the present invention is large, connect closely, it is strong that external force resistance is pullled ability, easy for installation, the degree of reliability is high, by adding reinforcing agent of the present invention, strengthen the adhesion with each material composition, hardness stress at definite elongation is all significantly improved, but also can improve elasticity, the compression set etc. of rubber product, has improved the overall quality of sealing circle.

Description

A kind of sealing ring that connects

Technical field

The present invention relates generally to a kind of sealing ring, relates in particular to a kind of sealing ring that connects.

Background technology

Fluorubber has heightChemical stability, be the best one of medium-resistance in current all elastomers. 26 type fluorubber are resistance toPetroleum baseOils, di esters oil, silicon ethers oil, silicic acid class oil, inorganic acid resistance, resistance toMost organic and inorganic solvent, medicine etc., only not resistance to low molecular ketone, ether, ester, not resistance toAmine, ammonia, hydrofluoric acid, chlorosulfonic acid, phosphoric acid classHydraulic oil. 23 typesFluorine glueDielectric behavior similar to 26 types,And more have unique distinction, the inorganic acid of its powerful oxidation corrosion resistance is as being fumingNitric acid, concentrated sulfuric acid Performance Ratio 26 typesGood, at room temperature in 98% HNO3, flooding its volumetric expansion in 27 days is only 13% ~ 15%.

The resistance to elevated temperatures of fluorubber andSilicon rubberThe same, can be described as in current elastomer best. 26-41Fluorine glue can use for a long time at 250 DEG C, and short-term is used at 300 DEG C; The heat-resisting 26-41 that compares of 246 fluorine glueFortunately. The physical property of 26-41 after 300 DEG C × 100 hours air heat ageings and 300 DEG C × 100 littleTime hot air aging after the performance of 246 types suitable, its elongation at break can remain on 100% left and right,Hardness 90 ~ 95 degree. 246 types keep favorable elasticity 350 DEG C of hot air agings after 16 hours,400 DEG C of hot air agings keep favorable elasticity afterwards in 110 minutes, 400 DEG C of hot air agings 110After minute, contain sprayingCarbon black, thermals or carbon fiber sizing material percentage elongation rise approximately 1/2~ 1/3, intensity 1/2 left and right that declines, still keeps good elasticity. 23-11 type fluorine glue can be 20At 0 DEG C, use for a long time, short-term is used at 250 DEG C.

Fluorubber has fabulous anti-weather-aging property, resistance toOzonePerformance. According to reports, DuPont developsWithin 10 years, performance is still satisfactory afterwards at natural storage for VitonA,Ozone concentrationBe in 0.01% airThrough not obviously be full of cracks of effect in 45 days. The Weather-resistant of 23 type fluorubber, ozone resistance are alsoFabulous.

Fluorubber has good physicsMechanical performance. The general brute force coordinating of 26 type fluorubber is between 10 ~ 20MPa, elongation at break is between 150 ~ 350%, and tearing toughness is between 3 ~ 4KN/m. 23 type fluorine rubbersGlue brute force is between 15.0 ~ 25MPa, and percentage elongation is 200% ~ 600%, and tearing toughness is at 2 ~ 7MPBetween a. Usually, fluorubber compression set is at high temperature large, if but with identicalCondition comparison, as the compression set of the same equal time from 150 DEG C, Ding HeNeopreneAll thanIt is large that 26 type fluorine glue are wanted, and the compression of 26 type fluorubber under 200 DEG C × 24 hours is equivalent to fourth rubberGlue was the compression of 150 DEG C × 24 hours.

Summary of the invention

The object of the invention is just to provide a kind of sealing ring that connects.

The present invention is achieved by the following technical solutions:

A kind of sealing ring that connects, it is made up of the raw material of following weight parts:

Fluororubber 23 94-100, neoprene CR12110-14, precipitated calcium carbonate 16-20, Fang XieStone flour 3-4, glycerine glycerinate 3-4, trimethylolpropane 1-3, cetomacrogol 10002-4, magnesia 1-2, antioxidant A W1-2, N-isopropyl-N '-diphenyl-para-phenylene diamine1-2, altax 0.9-1, sodium hydrogen phosphate 1-2, polyimides 1-2, tributyl trichlorineChange tin 0.2-0.4, reinforcing agent 15-20, tetramethylthiuram disulfide 0.8-1;

Described reinforcing agent is made up of the raw material of following weight parts:

Polypropylene (T30S) powder 90-100, hexagonal boron nitride 3-4, alum powder 2-3, ethylene group are two hardAcyl amine 1-2, turpentine oil 0.8-1, Γ-aminopropyl triethoxysilane 1-2, atoleine3-4；

Above-mentioned ethylene group bis-stearamides is heated to 130-140 DEG C, adds Γ-aminopropyl-triethoxySilane, hexagonal boron nitride, insulated and stirred reaction 10-20 minute, by turpentine oil, alum powder, poly-After propylene (T30S) powder mixing and stirring, add, be cooled to normal temperature, 1500-1600 rev/minDisperse 6-8 minute, dropping liquid paraffin body, dropwises rear 90-100 DEG C of insulation 1-2 hour, coldBut ball milling after, dries, granulation, and particle diameter is 0.1-0.2 μ m.

A preparation method who connects sealing ring, comprises the following steps:

Above-mentioned cetomacrogol 1000 is mixed with precipitated calcium carbonate, calcite in powder, low speed 200-300 turns/Point stir 3-5 minute, add tributyl tin trichloride, heat stirring reaction 10-at 90-100 DEG C20 minutes, be cooled to normal temperature, add glycerine glycerinate, fully stir, dry, addEnter the each raw material of residue except tetramethylthiuram disulfide, altax, mixing, pressMake type; Rubber mass after moulding is joined in the mould in vulcanizing equipment, add residue eachRaw material, carries out vulcanizing treatment, and time-temperature is 160-170 DEG C, and cure time is 280-300s;Deburring, inspection, packaging, warehouse-in, obtain described connection sealing ring.

Advantage of the present invention is:

The axial straight line frictional force of sealing ring of the present invention is large, connects closely, and it is strong that external force resistance is pullled ability, easy for installation, the degree of reliability is high, by adding reinforcing agent of the present invention, has strengthened with each formerThe adhesion of material composition, hardness stress at definite elongation is all significantly improved, but also can changeBe apt to elasticity, the compression set etc. of rubber product, improved the overall quality of sealing circle。

Detailed description of the invention

Embodiment 1

A kind of sealing ring that connects, it by following weight parts (kilogram) raw material form:

Fluororubber 23 100, neoprene CR12114, precipitated calcium carbonate 20, calcite in powder 4, thirdTriol glycerinate 4, trimethylolpropane 3, cetomacrogol 1000 2, magnesia 2, anti-Old agent AW2, N-isopropyl-N '-diphenyl-para-phenylene diamine 2, altax 0.9, phosphorusAcid disodium hydrogen 2, polyimides 1, tributyl tin trichloride 0.4, reinforcing agent 20, curing tetramethylBase thiuram 0.8;

Polypropylene (T30S) powder 100, hexagonal boron nitride 3, alum powder 3, ethylene group bis-stearamides 2, turpentine oil 0.8, Γ-aminopropyl triethoxysilane 2, atoleine 4;

Above-mentioned ethylene group bis-stearamides is heated to 140 DEG C, adds Γ-aminopropyl triethoxysilane, hexagonal boron nitride, insulated and stirred reaction 20 minutes, by turpentine oil, alum powder, polypropylene (T30S) after powder mixing and stirring, add, be cooled to normal temperature, 1600 revs/min are disperseed 6 minutes,Dropping liquid paraffin body, dropwises rear 100 DEG C of insulations 1 hour, and cooling rear ball milling, dries, and makesGrain, particle diameter is 0.2 μ m.

A preparation method who connects sealing ring, comprises the following steps:

Above-mentioned cetomacrogol 1000 is mixed with precipitated calcium carbonate, calcite in powder, and 300 revs/min of low speed stirMix 3 minutes, add tributyl tin trichloride, heat stirring reaction 20 minutes at 100 DEG C, coolingTo normal temperature, add glycerine glycerinate, fully stir, dry, add except curingThe each raw material of residue beyond tetra methylthiuram, altax, mixing, compressing; To becomeRubber mass after type joins in the mould in vulcanizing equipment, adds the each raw material of residue, carries out sulphurChange and process, time-temperature is 160 DEG C, and cure time is 300s; Deburring, inspection, pack, enterStorehouse, obtains described connection sealing ring.

Performance test

Claims

1. connect a sealing ring, it is characterized in that what it was made up of the raw material of following weight parts:

Fluororubber 23 94-100, neoprene CR12110-14, precipitated calcium carbonate 16-20, calcite in powder 3-4, glycerine glycerinate 3-4, trimethylolpropane 1-3, cetomacrogol 1000 2-4, magnesia 1-2, antioxidant A W1-2, N-isopropyl-N '-diphenyl-para-phenylene diamine 1-2, altax 0.9-1, sodium hydrogen phosphate 1-2, polyimides 1-2, tributyltin chloride 0.2-0.4, reinforcing agent 15-20, tetramethylthiuram disulfide 0.8-1;

Polypropylene T30S powder 90-100, hexagonal boron nitride 3-4, alum powder 2-3, ethylene group bis-stearamides 1-2, turpentine oil 0.8-1, gamma-aminopropyl-triethoxy-silane 1-2, atoleine 3-4;

Above-mentioned ethylene group bis-stearamides is heated to 130-140 DEG C, add gamma-aminopropyl-triethoxy-silane, hexagonal boron nitride, insulated and stirred reaction 10-20 minute, will add after turpentine oil, alum powder, polypropylene T30S powder mixing and stirring, be cooled to normal temperature, 1500-1600 rev/min is disperseed 6-8 minute, and dropping liquid paraffin body dropwises rear 90-100 DEG C of insulation 1-2 hour, cooling rear ball milling, dry, granulation, particle diameter is 0.1-0.2 μ m.

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

Above-mentioned cetomacrogol 1000 is mixed with precipitated calcium carbonate, calcite in powder, low speed 200-300 rev/min is stirred 3-5 minute, add tributyltin chloride, heat stirring reaction 10-20 minute at 90-100 DEG C, be cooled to normal temperature, add glycerine glycerinate, fully stir, dry, add the each raw material of residue except tetramethylthiuram disulfide, altax, mixing, compressing; Rubber mass after moulding is joined in the mould in vulcanizing equipment, add the each raw material of residue, carry out vulcanizing treatment, curing temperature is 160-170 DEG C, and cure time is 280-300s; Deburring, inspection, packaging, warehouse-in, obtain described connection sealing ring.