CN1240779C - Use of polyamide composite materials in preparation of pump or valve - Google Patents
Use of polyamide composite materials in preparation of pump or valve Download PDFInfo
- Publication number
- CN1240779C CN1240779C CN 200410091148 CN200410091148A CN1240779C CN 1240779 C CN1240779 C CN 1240779C CN 200410091148 CN200410091148 CN 200410091148 CN 200410091148 A CN200410091148 A CN 200410091148A CN 1240779 C CN1240779 C CN 1240779C
- Authority
- CN
- China
- Prior art keywords
- preparing
- hexanolactam
- promotor
- valve
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
- C08G69/18—Anionic polymerisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/06—Polyamides, e.g. NYLON
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2251/00—Material properties
- F05C2251/14—Self lubricating materials; Solid lubricants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/18—Filler
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- 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)
- Polyamides (AREA)
Abstract
The present invention relates to a purpose of a composite polyamide material in the aspects of preparing pumps or valves and particularly relates to a method for manufacturing pumps or valves by using a composite polycaprolactam material and manufactured products. The method comprises the following steps: polymer raw materials containing 60 to 80% of caprolactam, 2 to 30% of filling materials, 1.4 to 3% of sodium metal or sodium hydroxide, 3 to 6% of cocatalyst, etc. are stirred and uniformly mixed in a reaction vessel, and then the mixture is cast and polymerized for shaping; thus, the products of the present invention can be obtained. The pumps or the valves manufactured from polyamide engineering plastics of the present invention have the advantages of good mechanical properties, strong tensile strength equal to or greater than 97MPa, high abrasive resistance 2 to 3 times as stronger as steel products, impact resistance, acid and alkali resistance, favorable self lubricity and rebound resilience and stable product size; particularly, the water absorption of the pumps and the valves are small and is 2 to 2.5 times lower than general engineering plastics. The polyamide engineering plastics can be used for manufacturing pumps and valves with various purposes.
Description
Technical field
The present invention relates to the application of polyamide compoiste material aspect preparation pump or valve, particularly relate to the polycaprolactam matrix material and make pump or the method for valve and the product that makes.
Background technology
Polyamide compoiste material (or claiming engineering plastics) is a kind of polymer composite, can direct substitution tinbronze, nonferrous materials such as xantal, brass, Babbitt metal, stainless steel, be widely used in industrial circles such as oil, chemical industry, metallurgy, and can be used for industrial application such as trolley part, mechanical part, electrical equipment, electronic unit.For example, Chinese patent CN 1151931A discloses a kind of manufacture method of monomer cast nylon pipeline, it is characterized in that with the hexanolactam being main raw material, carries out the rotational casting polymerization forming in mould, and the pipeline that makes has acid and alkali-resistance, characteristics such as corrosion-resistant.CN 1157001 A have disclosed and have used the blend that contains polymeric amide-new LDPE (film grade), prepare the method for coil pipe, non-coil pipe, sheet material, film and similar goods thereof with currently known methods.But do not find as yet so far to use Polyamide Engineering Plastic to prepare the report of industrial valve or pump.With the pump or the valve of other engineering plastics preparation, though have good physicals and processing characteristics, its shortcoming is that water-absorbent is big, product size that makes and unstable properties.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned defective, provide that a kind of water-absorbent is little, the polyamides amine pump of stable performance or the preparation method of valve, and product obtained by this method.
Polyamide Engineering Plastic combines the major advantage of common engineering plastics, utilize parent main chain end to contain amino and carboxyl, the characteristics that have reactive behavior under certain condition, by adding various weighting agents and properties-correcting agent in the reaction process, carry out chemistry and physically modified, solved because the product size that water-absorbent is brought and the defective of performance variation significantly improve over-all properties, thereby be suitable for making various specific equipments, particularly industrial widely used pump and valve.
Purpose of the present invention can be achieved through the following technical solutions:
The invention provides a kind of method for preparing pump or valve with polyamide compoiste material, this method comprises, after raw material stirring mixed, pour into and carry out the cast poymerization moulding in the preheated mold, it is characterized in that preparing pump or the used polymer raw of valve comprises hexanolactam, weighting agent, catalyzer and promotor.
Polymer raw comprises the 60-80% hexanolactam by weight percentage, 2-30% stopping composition, the sodium Metal 99.5 of 1.4-3% or sodium hydroxide and 3-6% promotor.
Used stopping composition is selected from glass fibre, talcum powder, wood fibre, aluminum oxide powder, carbon black, graphite, one or more in the kaolin.Promotor is selected from acid amides, hexanolactam, isocyanic ester or derivatives thereof, preferred ethanoyl hexanolactam and triphenylmethane triisocyanate.
Concrete preparation method is as follows:
1, the preparation of mould: according to product requirements, select various difform moulds, clean standby, according to composition of raw materials, with mould and die preheating to about 150 ~ 180 ℃ of solidification value;
2, polymer raw preparation: the difference according to pump, valve performance requires to determine different composition of raw materials.In reactor, add hexanolactam, stopping composition and catalyst metal sodium or sodium hydroxide in 120 ~ 200 ℃ of scopes of temperature, were plasticated 20 ~ 40 minutes, reduced pressure then, dewatered, and added promotor, mixed rapidly, immediately casting.
3, casting and polymerizing curable: with the above-mentioned pre-activation raw material for preparing, injection is preheated to 140 ~ 180 ℃ mould, is incubated 20 ~ 30 minutes, and the cooling rear demoulding promptly gets goods.
Its casting process comprises: level casting, rotational casting, vacuum casting, vibrations casting etc., also available embedding, roll, method such as slush moulding, the those skilled in the art can select as required.
4, in order to add fast response, can add initiator dibenzoyl peroxide or Diisopropyl azodicarboxylate commonly used before casting, the add-on of dibenzoyl peroxide is 0.02 ~ 0.12% of an amount of monomer, and the add-on of Diisopropyl azodicarboxylate is 0.02 ~ 0.05% of an amount of monomer.
In addition, as required, also can add this area various additives commonly used in casting cycle, for example stablizer, antioxidant, lubricant, fire retardant and colour batch, coupling agent and anti-impact modifier etc. are with the further performance of improving product.
The pump or the valve that make with Polyamide Engineering Plastic of the present invention, good mechanical property, its tensile strength is equal to or greater than 97Mpa, wear resistance is 2 ~ 3 times of steel product, shock resistance, acid and alkali-resistance, self lubricity and rebound resilience are good, particularly water-absorbent is little, and than low 2 ~ 2.5 times of the water-intake rate of common engineering plastics, product size is stable.
Embodiment
The following examples are only for further specifying the present invention, rather than limit the scope of the invention.
Embodiment 1
In reaction vessel, add 1 kilogram of hexanolactam, 0.3 kilogram in glass fibre, carbon black 2 grams, graphite 2 grams, silane coupling agent 0.035 gram, blending and stirring 10 minutes is under temperature≤120 ℃, plasticated 15 minutes, add sodium hydroxide 1.5 grams, reclaiming by plastification 20 ~ 30 minutes, temperature is about 140 ℃, vacuum decompression, under 〉=750mmHg, dewater to 300ppm, add 4 ~ 6 milliliters of triphenylmethane triisocyanates and 0.5 milliliter of Diisopropyl azodicarboxylate initiator, after stirring, inject immediately in 150 ℃ of moulds, be incubated 20 ~ 30 minutes, the demoulding promptly gets goods.
Embodiment 2:
In reaction vessel, add 1 kilogram of hexanolactam, 0.15 kilogram of aluminum oxide powder, carbon black 2 grams, molybdenumdisulphide 2 grams, silane coupling agent 0.035 gram, blending and stirring 10 minutes is under temperature≤120 ℃, plasticated 15 minutes, add sodium Metal 99.5 1.6 grams, reclaiming by plastification 20 ~ 30 minutes, temperature is about 140 ℃, vacuum decompression, under 〉=750mmHg, dewater to 300ppm, add 3.5 milliliters of vulcabond and 0.02 milliliter of dibenzoyl peroxide, after stirring, inject immediately in 150 ℃ of moulds, be incubated 20 ~ 30 minutes, the demoulding promptly gets goods.
Embodiment 3:
Press the identical method of embodiment 1, carry out cast poymerization, just raw material is changed into 1 kilogram of hexanolactam, with 0.02 kilogram of ACR, carbon black 2 grams, sodium hydroxide 3 grams, 3.5 milliliters of diphenyl carbonates.
Wherein, ACR is the abbreviation of methyl methacrylate, divinyl and polystyrene ternary graft copolymer, is the product of Singapore Wu Yu chemical company, and its trade mark has ACR-ZB-1, ACR-ZB-5, and ACR-ZB401, ACR-ZB-201 etc. all can be used for the present invention.
Now the performance data with embodiment 1 ~ 3 gained material is listed in the table below 1.
Table 1
| Performance | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Test method |
| Density | G/cm 2 | 1.405 | 1.16-1.20 | 1.35-1.15 | GB1033-1970 |
| Water-intake rate | ％ | 0.31 | 0.56 | 0.9-1.0 | GB1034-1970 |
| Tensile strength | Mpa | 130-150 | 91.7-99.8 | 69.5 | GB1040-1970 |
| Elongation at break | ％ | 12.2-13.4 | ≥20 | 220 | GB1040-1970 |
| Compressive strength | Mpa | 127 | 85-100 | 51-67 | GB1041-1970 |
| Shock strength | Kj/m 2 | ≥8 | 5.7 | ≥9.6 | GB1043-1970 |
| Brinell hardness | (HB)N/mm 2 | 270-280 | ≥137 | 80-120 | HG2-168-1975 |
| Flexural strength | Mpa | 150 | 130 | 86.9 | GB1042-1979 |
| Embrittlement temperature | ℃ | -50~-40 | ≤-40 | -82 | HG4-841-1976 |
| Linear expansivity | 1×10-5℃ | ≤2.5 | ≥5 | ≤7.5 | GB1036-1970 |
| Heat-drawn wire | (1.8Mpa)℃ | 150 | 125.5 | 120 | GB1634-1979 |
| Frictional coefficient | μ | 0.04 | 0.13 | 0.10 | GB3360 |
| Fusing point | ℃ | 260 | 230 | 223 | HG/T2235 |
From table 1 data as can be seen, three kinds of different material prescriptions, the technical performance index of gained engineering plastics has nothing in common with each other, and according to the stressing conditions difference of pump, valve, can be used to differing materials to prepare the pump or the valve of different purposes.First kind of material has hardness, characteristics that flexural strength is good, is used to produce valve rod and upper valve body, spheroid and pump shaft etc.; Second kind of material, existing hardness has temperature tolerance and toughness again, is used to produce valve seat, pump case; The third material can be used for producing sealing member, anti-impact part etc.
Pump, the valve performance of producing with Polyamide Engineering Plastic of the present invention are good, can be used for preparing the pump and the valve of various uses.For example, industrial ball valve, gate valve, stopping valve, plunger valve, the vacuum breaker of operating pressure below 4.0Mpa, the series product such as butterfly valve of operating pressure below 1.6Mpa.Its performance all reaches and the technical requirements that surpasses similar steel product with technical indicator, and is widely used in industrial circles such as oil, chemical industry, water power, metallurgy, pharmacy.
Claims (10)
1, a kind of method for preparing valve with polyamide compoiste material, this method comprise raw material stirring mixed after, pour into and carry out the cast poymerization moulding in the preheated mold, it is characterized in that preparing the used polymer raw of valve and comprise hexanolactam, weighting agent, catalyzer, promotor and initiator.
2, the method for preparing valve according to claim 1; wherein polymer raw by weight percentage; comprise the 60-80% hexanolactam; the 2-30% stopping composition; sodium Metal 99.5 or the sodium hydroxide of 1.4-3% as catalyzer, 3-6% promotor, initiator are dibenzoyl peroxide or Diisopropyl azodicarboxylate; the add-on of dibenzoyl peroxide is the 0.02-0.12% of amount of monomer, and the add-on of Diisopropyl azodicarboxylate is the 0.02-0.05% of amount of monomer.
3, the method for preparing valve according to claim 2, wherein stopping composition is selected from one or more in glass fibre, talcum powder, wood fibre, aluminum oxide powder, carbon black, graphite, the kaolin, and promotor is selected from acid amides, hexanolactam, isocyanic ester or derivatives thereof.
4, the method for preparing valve according to claim 3, wherein promotor is selected from ethanoyl hexanolactam or triphenylmethane triisocyanate.
5, a kind of method for preparing pump with polyamide compoiste material, this method comprise raw material stirring mixed after, pour into and carry out the cast poymerization moulding in the preheated mold, it is characterized in that preparing the used polymer raw of pump and comprise hexanolactam, weighting agent, catalyzer, promotor and initiator.
6, the method for preparing pump according to claim 5; wherein polymer raw by weight percentage; comprise the 60-80% hexanolactam; the 2-30% stopping composition; sodium Metal 99.5 or the sodium hydroxide of 1.4-3% as catalyzer, 3-6% promotor, initiator are dibenzoyl peroxide or Diisopropyl azodicarboxylate; the add-on of dibenzoyl peroxide is the 0.02-0.12% of amount of monomer, and the add-on of Diisopropyl azodicarboxylate is the 0.02-0.05% of amount of monomer.
7, the method for preparing pump according to claim 6, wherein stopping composition is selected from one or more in glass fibre, talcum powder, wood fibre, aluminum oxide powder, carbon black, graphite, the kaolin, and promotor is selected from acid amides, hexanolactam, isocyanic ester or derivatives thereof.
8, the method for preparing pump according to claim 7, wherein promotor is selected from ethanoyl hexanolactam or triphenylmethane triisocyanate.
9, the valve that makes according to the preparation method of one of claim 1-4.
10, the pump that makes according to the preparation method of one of claim 5-8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410091148 CN1240779C (en) | 2004-11-19 | 2004-11-19 | Use of polyamide composite materials in preparation of pump or valve |
| PCT/CN2005/001930 WO2006053492A1 (en) | 2004-11-19 | 2005-11-16 | The use of polyamide composite for preparing pump or valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410091148 CN1240779C (en) | 2004-11-19 | 2004-11-19 | Use of polyamide composite materials in preparation of pump or valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1631981A CN1631981A (en) | 2005-06-29 |
| CN1240779C true CN1240779C (en) | 2006-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410091148 Expired - Fee Related CN1240779C (en) | 2004-11-19 | 2004-11-19 | Use of polyamide composite materials in preparation of pump or valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1240779C (en) |
| WO (1) | WO2006053492A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604077B (en) * | 2012-03-07 | 2016-07-06 | 张俊达 | The formula of modified MC nylon composite and the preparation method of material |
| CN102734153A (en) * | 2012-07-13 | 2012-10-17 | 上海鸿得利重工股份有限公司 | High wear-resisting S valve used for concrete pump and manufacturing method of S valve |
| CN104710611A (en) * | 2013-12-17 | 2015-06-17 | 广东科进尼龙管道制品有限公司 | Thermal conductive MC nylon composite material and preparation method thereof |
| CN108864698A (en) * | 2018-07-26 | 2018-11-23 | 司彩霞 | A kind of protective metal shell fire proofing material and preparation method thereof |
| CN109181289A (en) * | 2018-09-30 | 2019-01-11 | 刘彦彦 | A kind of tenacity nylon material and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2536541Y2 (en) * | 1991-12-27 | 1997-05-21 | 株式会社ニフコ | Filter for in-tank pump of automobile fuel tank |
| JP3071602B2 (en) * | 1993-04-02 | 2000-07-31 | 帝人株式会社 | Thermoplastic composite reed valve and method of manufacturing the same |
| CN1157539C (en) * | 1999-01-28 | 2004-07-14 | 淮安市楚州尼龙制品厂 | Blade wheel of slurry pump and its manufacture method |
-
2004
- 2004-11-19 CN CN 200410091148 patent/CN1240779C/en not_active Expired - Fee Related
-
2005
- 2005-11-16 WO PCT/CN2005/001930 patent/WO2006053492A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN1631981A (en) | 2005-06-29 |
| WO2006053492A1 (en) | 2006-05-26 |
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Granted publication date: 20060208 Termination date: 20161119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |