CN106009660A - Composite fiber-reinforced high-performance gasket for pump - Google Patents
Composite fiber-reinforced high-performance gasket for pump Download PDFInfo
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- CN106009660A CN106009660A CN201610483218.6A CN201610483218A CN106009660A CN 106009660 A CN106009660 A CN 106009660A CN 201610483218 A CN201610483218 A CN 201610483218A CN 106009660 A CN106009660 A CN 106009660A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a composite fiber-reinforced high-performance gasket for a pump. The composite fiber-reinforced high-performance gasket is made from, by weight, 10-15 parts of aramid pulp, 15-20 parts of boron nitride fibers, 8-15 parts of Kevlar fibers, 10-15 parts of ethylene-propylene-diene monomer rubber, 8-12 parts of diallyl phthalate, 18-24 parts of modified dolomite powder, 2-4 parts of carbon black N660, 1-3 parts of carbon black N762, 1-2 parts of a vulcanization accelerator and 1-3 parts of water lepodocrocite powder. Compared with the prior art, the composite fiber-reinforced high-performance gasket has the following advantages that the aramid pulp is beneficial for improving the transverse tensile strength of the material, the boron nitride fibers can improve the pull-up strength and rebound resilience of the material, the gasket forms a net-shaped structure by uniformly filling gaps among fibers with the modified dolomite powder through multiple times of blending, and therefore it is guaranteed that the rubber has the high transverse tensile strength, the excellent contraction percentage, rebound rate and stress relaxation rate and the excellent leakproofness.
Description
Technical field
The invention belongs to the ingredients technical field of pump, be specifically related to a kind of pump high-performance pad strengthened by composite fibre.
Background technology
Pad is the primary element of centrifugal pump static seal, range is widely, generally according to transport pump medium, temperature, the factor such as pressure and corrosivity determine pad prepare material, the field used along with pump is more and more extensive, the medium carried also gets more and more, requirement to pad is more and more higher, current existing pad strengthens the performance in terms of certain generally according to institute's pumped (conveying) medium, on the premise of controlling cost, tensile strength would generally be strengthened, compression rebound rate or stress relaxation rate, the selection of pad more bothers, if selecting wrong, then easily cause breakage, the problems such as leakage, affect the conveying of medium.
Summary of the invention
It is an object of the invention to for existing problem, it is provided that a kind of pump high-performance pad strengthened by composite fibre.
The present invention is achieved by the following technical solutions: a kind of pump high-performance pad strengthened by composite fibre, it is made up of the raw material of following weight portion: Fanglun slurry cake 10-15 part, boron nitride fiber 15-20 part, Kafra fiber 8-15 part, ethylene propylene diene rubber 10-15 part, diallyl phthalate 8-12 part, modification dolomite powder 18-24 part, white carbon black N660 2-4 part, white carbon black N762 1-3 part, vulcanization accelerator 1-2 part, hydrogoethite powder 1-3 part；
Wherein, the preparation method of described modification dolomite powder is as follows: takes dolomite dust roasting 1-2 hour under the high temperature of 600 DEG C, then soaks 3-4 hour with the sodium hydroxide solution that mass concentration is 12%, after deionized water rinsing to neutrality, dries；Then by being such as equivalent to the nickel sulfate of its weight portion 3-5%, 1-2% nano barite, 2-3% polyisobutylene and the titanate esters of 1-2%, in 1800-2000rpm high speed dispersion 10-15 minute, ovendry power is broken into ultramicro powder and get final product.
As further improvement of these options, described vulcanization accelerator is tetd-80 rubber chemicals.
The preparation method of a kind of pump high-performance pad strengthened by composite fibre comprises the following steps:
(1) in banbury, it is sequentially added into Fanglun slurry cake, boron nitride fiber and Kafra fiber by formula, under conditions of 45-60 DEG C after mixing 1-2 minute, seals and place 15-20 minute；
(2) banbury in step (1) continuously adds ethylene propylene diene rubber, diallyl phthalate and white carbon black N660, under conditions of 65-75 DEG C after mixing 2-3 minute, seal and place 10-15 minute；
(3) banbury in step (2) continuously adds modification dolomite powder, white carbon black N762 and hydrogoethite powder, under conditions of 120-130 DEG C after the mixing 30-40 second, seal and place 8-12 minute；
(4) continuing to be heated to 150-180 DEG C after turning over glue, after mixing 3-5 minute, binder removal obtains sizing material；
(5), after being cooled to 70-80 DEG C, add vulcanization accelerator, the mixing 40-60 second, obtain synthetic rubber；
(6) by synthetic rubber by mill molding in mill, being then 15-18MPa at pressure, under conditions of temperature is 160-180 DEG C, rubber is carried out vulcanizing treatment, the time is 30-40 minute, obtains finished product according to product needed after pruning.
The present invention has the advantage that in the present invention, Fanglun slurry cake is favorably improved the transverse tensile strength of material compared to existing technology, what boron nitride fiber can improve material draws high intensity and resilience, modification dolomite powder is uniformly filled between fiber and fiber, by the most mixing, pad is made to form network structure, ensure that rubber has stronger transverse tensile strength, excellent shrinkage factor, rebound degree and stress relaxation rate, the most also there is the sealing of excellence.
Detailed description of the invention
Embodiment 1
A kind of pump high-performance pad strengthened by composite fibre, it is made up of the raw material of following weight portion: Fanglun slurry cake 12 parts, boron nitride fiber 18 parts, Kafra fiber 15 parts, ethylene propylene diene rubber 12 parts, diallyl phthalate 10 parts, 22 parts of modification dolomite powder, white carbon black N660 4 parts, white carbon black N762 2 parts, vulcanization accelerator 2 parts, 3 parts of hydrogoethite powder；
Wherein, the preparation method of described modification dolomite powder is as follows: takes dolomite dust roasting 1-2 hour under the high temperature of 600 DEG C, then soaks 3-4 hour with the sodium hydroxide solution that mass concentration is 12%, after deionized water rinsing to neutrality, dries；Then by being such as equivalent to the nickel sulfate of its weight portion 3-5%, 1-2% nano barite, 2-3% polyisobutylene and the titanate esters of 1-2%, in 1800-2000rpm high speed dispersion 10-15 minute, ovendry power is broken into ultramicro powder and get final product.
Wherein, described vulcanization accelerator is tetd-80 rubber chemicals.
The preparation method of a kind of pump high-performance pad strengthened by composite fibre comprises the following steps:
(1) in banbury, it is sequentially added into Fanglun slurry cake, boron nitride fiber and Kafra fiber by formula, under conditions of 45-60 DEG C after mixing 1-2 minute, seals and place 15-20 minute；
(2) banbury in step (1) continuously adds ethylene propylene diene rubber, diallyl phthalate and white carbon black N660, under conditions of 65-75 DEG C after mixing 2-3 minute, seal and place 10-15 minute；
(3) banbury in step (2) continuously adds modification dolomite powder, white carbon black N762 and hydrogoethite powder, under conditions of 120-130 DEG C after the mixing 30-40 second, seal and place 8-12 minute；
(4) continuing to be heated to 150-180 DEG C after turning over glue, after mixing 3-5 minute, binder removal obtains sizing material；
(5), after being cooled to 70-80 DEG C, add vulcanization accelerator, the mixing 40-60 second, obtain synthetic rubber；
(6) by synthetic rubber by mill molding in mill, being then 15-18MPa at pressure, under conditions of temperature is 160-180 DEG C, rubber is carried out vulcanizing treatment, the time is 30-40 minute, obtains finished product according to product needed after pruning.
Embodiment 2
A kind of pump high-performance pad strengthened by composite fibre, it is made up of the raw material of following weight portion: Fanglun slurry cake 15 parts, boron nitride fiber 20 parts, Kafra fiber 12 parts, ethylene propylene diene rubber 13 parts, diallyl phthalate 12 parts, 18 parts of modification dolomite powder, white carbon black N660 4 parts, white carbon black N762 2 parts, vulcanization accelerator 2 parts, 2 parts of hydrogoethite powder；
Wherein, the preparation method of described modification dolomite powder is as follows: takes dolomite dust roasting 1-2 hour under the high temperature of 600 DEG C, then soaks 3-4 hour with the sodium hydroxide solution that mass concentration is 12%, after deionized water rinsing to neutrality, dries；Then by being such as equivalent to the nickel sulfate of its weight portion 3-5%, 1-2% nano barite, 2-3% polyisobutylene and the titanate esters of 1-2%, in 1800-2000rpm high speed dispersion 10-15 minute, ovendry power is broken into ultramicro powder and get final product.
Its preparation method is same as in Example 1.
Embodiment 3
A kind of pump high-performance pad strengthened by composite fibre, it is made up of the raw material of following weight portion: Fanglun slurry cake 13 parts, boron nitride fiber 18 parts, Kafra fiber 10 parts, ethylene propylene diene rubber 15 parts, diallyl phthalate 10 parts, 24 parts of modification dolomite powder, white carbon black N660 4 parts, white carbon black N762 3 parts, vulcanization accelerator 2 parts, 1 part of hydrogoethite powder；
Wherein, the preparation method of described modification dolomite powder is as follows: takes dolomite dust roasting 1-2 hour under the high temperature of 600 DEG C, then soaks 3-4 hour with the sodium hydroxide solution that mass concentration is 12%, after deionized water rinsing to neutrality, dries；Then by being such as equivalent to the nickel sulfate of its weight portion 3-5%, 1-2% nano barite, 2-3% polyisobutylene and the titanate esters of 1-2%, in 1800-2000rpm high speed dispersion 10-15 minute, ovendry power is broken into ultramicro powder and get final product.
Its preparation method is same as in Example 1.
For proving above-mentioned conclusion, contrast experiment is set, matched group 1 is set: boron nitride fiber is replaced by Kafra fiber, other compositions are identical, matched group 2 is set: Kafra fiber is replaced by boron nitride fiber, other compositions are identical, matched group 3 is set: boron nitride fiber and Kafra fiber are replaced by Fanglun slurry cake, matched group 4 is set: Fanglun slurry cake is replaced by Kafra fiber, matched group 5 is set: with aramid fiber for existing as matrix, sheet material with nitrile rubber as binding agent, detects the main performance of sheet material respectively, is concluded that
Table 1
Be can be seen that by data in table 1, the pad of preparation is strengthened by composite fibre, tensile strength is enhanced, compression ratio, rebound degree and stress relaxation forces all keep excellent state, slip is less than 0.01 ml/min, illustrating that its sealing is preferable, the scope of application is relatively wide, reduces the difficulty that different medium pump is selected corresponding pad.
Claims (3)
1. the pump high-performance pad that a kind is strengthened by composite fibre, it is characterized in that, be made up of the raw material of following weight portion: Fanglun slurry cake 10-15 part, boron nitride fiber 15-20 part, Kafra fiber 8-15 part, ethylene propylene diene rubber 10-15 part, diallyl phthalate 8-12 part, modification dolomite powder 18-24 part, white carbon black N660 2-4 part, white carbon black N762 1-3 part, vulcanization accelerator 1-2 part, hydrogoethite powder 1-3 part；
Wherein, the preparation method of described modification dolomite powder is as follows: takes dolomite dust roasting 1-2 hour under the high temperature of 600 DEG C, then soaks 3-4 hour with the sodium hydroxide solution that mass concentration is 12%, after deionized water rinsing to neutrality, dries；Then by being such as equivalent to the nickel sulfate of its weight portion 3-5%, 1-2% nano barite, 2-3% polyisobutylene and the titanate esters of 1-2%, in 1800-2000rpm high speed dispersion 10-15 minute, ovendry power is broken into ultramicro powder and get final product.
A kind of pump high-performance pad strengthened by composite fibre, it is characterised in that described vulcanization accelerator is tetd-80 rubber chemicals.
A kind of pump high-performance pad strengthened by composite fibre, it is characterised in that its preparation method comprises the following steps:
(1) in banbury, it is sequentially added into Fanglun slurry cake, boron nitride fiber and Kafra fiber by formula, under conditions of 45-60 DEG C after mixing 1-2 minute, seals and place 15-20 minute；
(2) banbury in step (1) continuously adds ethylene propylene diene rubber, diallyl phthalate and white carbon black N660, under conditions of 65-75 DEG C after mixing 2-3 minute, seal and place 10-15 minute；
(3) banbury in step (2) continuously adds modification dolomite powder, white carbon black N762 and hydrogoethite powder, under conditions of 120-130 DEG C after the mixing 30-40 second, seal and place 8-12 minute；
(4) continuing to be heated to 150-180 DEG C after turning over glue, after mixing 3-5 minute, binder removal obtains sizing material；
(5), after being cooled to 70-80 DEG C, add vulcanization accelerator, the mixing 40-60 second, obtain synthetic rubber；
(6) by synthetic rubber by mill molding in mill, being then 15-18MPa at pressure, under conditions of temperature is 160-180 DEG C, rubber is carried out vulcanizing treatment, the time is 30-40 minute, obtains finished product according to product needed after pruning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483218.6A CN106009660A (en) | 2016-06-28 | 2016-06-28 | Composite fiber-reinforced high-performance gasket for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483218.6A CN106009660A (en) | 2016-06-28 | 2016-06-28 | Composite fiber-reinforced high-performance gasket for pump |
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| CN106009660A true CN106009660A (en) | 2016-10-12 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557865A (en) * | 2004-01-13 | 2004-12-29 | 上海大学 | Process for preparation formation of nonasbestos fibre enhanced latex sealing plate |
| CN1715319A (en) * | 2004-06-30 | 2006-01-04 | 北京化工大学 | Hydrogenized nitrile butadiene rubber and para aromatic polyamide fibre composite material and its preparing method |
| CN101003719A (en) * | 2006-11-14 | 2007-07-25 | 南京工业大学 | Mixed fiber enhanced rubber based sealing composite material, and preparing technique |
| CN103012988A (en) * | 2012-11-25 | 2013-04-03 | 安徽六方重联机械股份有限公司 | Preparation method of wrapping-purposed plastic base material film containing modified nano-vermiculite powder |
| CN103012942A (en) * | 2012-11-25 | 2013-04-03 | 安徽六方重联机械股份有限公司 | Wrapping-purposed plastic film containing modified dolomite fines |
| CN103524942A (en) * | 2013-10-12 | 2014-01-22 | 绿宝电缆（集团）有限公司 | Flexible polyvinyl chloride (PVC) soft cable material |
| CN103600547A (en) * | 2013-10-16 | 2014-02-26 | 鲁奎 | Agricultural deinsectization film |
-
2016
- 2016-06-28 CN CN201610483218.6A patent/CN106009660A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557865A (en) * | 2004-01-13 | 2004-12-29 | 上海大学 | Process for preparation formation of nonasbestos fibre enhanced latex sealing plate |
| CN1715319A (en) * | 2004-06-30 | 2006-01-04 | 北京化工大学 | Hydrogenized nitrile butadiene rubber and para aromatic polyamide fibre composite material and its preparing method |
| CN101003719A (en) * | 2006-11-14 | 2007-07-25 | 南京工业大学 | Mixed fiber enhanced rubber based sealing composite material, and preparing technique |
| CN103012988A (en) * | 2012-11-25 | 2013-04-03 | 安徽六方重联机械股份有限公司 | Preparation method of wrapping-purposed plastic base material film containing modified nano-vermiculite powder |
| CN103012942A (en) * | 2012-11-25 | 2013-04-03 | 安徽六方重联机械股份有限公司 | Wrapping-purposed plastic film containing modified dolomite fines |
| CN103524942A (en) * | 2013-10-12 | 2014-01-22 | 绿宝电缆（集团）有限公司 | Flexible polyvinyl chloride (PVC) soft cable material |
| CN103600547A (en) * | 2013-10-16 | 2014-02-26 | 鲁奎 | Agricultural deinsectization film |
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