CN1916079A - Pulp of aramid fiber enhanced molten nylon piece, and producing technique - Google Patents
Pulp of aramid fiber enhanced molten nylon piece, and producing technique Download PDFInfo
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- CN1916079A CN1916079A CN 200610112337 CN200610112337A CN1916079A CN 1916079 A CN1916079 A CN 1916079A CN 200610112337 CN200610112337 CN 200610112337 CN 200610112337 A CN200610112337 A CN 200610112337A CN 1916079 A CN1916079 A CN 1916079A
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Abstract
This invention discloses a method for continuously manufacturing casting nylon material reinforced with aramid pulp. The casting nylon material has such advantages as high strength, high toughness, high abrasion resistance, long service life and no need for lubricating, and can be used in such fields as mechanics, automobiles, ships, petroleum, chemical industry, national defence, textile, printing and civil facilities.
Description
Affiliated technical field
The technology that the present invention relates to pulp of aramid fiber enhanced molten nylon piece and production technique thereof is serialization production in batches, can be widely used in the parts of industries such as machinery, automobile, boats and ships, oil, chemical industry, national defence, weaving, printing and dyeing, urban road Infrastructure, the production of structural part.For example: once shaped reducer gear, automobile are exempted from the structural part of lubricated superpower wear-resistant bearing, urban road Infrastructure etc. with superpower endurable gear, boats and ships usefulness.
Background technology
The weight that the metal of prior art is made parts is big, not wear-resistant, noise is big, need lubricating oil, and existing molten nylon piece does not have strongthener, so it is low to produce intensity, toughness, elasticity, the wear resisting property of parts, can not once shaped, the waste material of processing pollutes.
Summary of the invention
Purpose of the present invention provides a kind of and comes alternative metals material and common molten nylon piece that breaking tenacity, flexural strength, toughness, the wear resistance of parts all can be improved more than three times with pulp of aramid fiber enhanced molten nylon piece.Produce with the accurate mould pressurization once shaped of heating, can accomplish does not have cutting.Production unit be large-scale band heat, with stir, the reactor raw materials for production of vacuum-pumping, flow in a plurality of accumulator, before entering injection moulding machine or pressure die-casting machine, add secondary catalyzer and stir through pressure forming, pipe fitting can centrifugal rotoforming.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of pulp of aramid fiber enhanced molten nylon piece of the present invention, but be the technical products of industrialized mass production, its prescription, except that containing main component hexanolactam, aramid pulp, also contain the short yarn cutting of carbon fiber, the short yarn cutting of basalt fibre, toluene two different hydracid fat, nano material, rare earth material, the weight percent of each composition is:
Hexanolactam 89.0～94.0 PTFE resins 0.3～1.3
Aramid pulp 2.0～4.0 rare earths 0.1～0.5
Short yarn cutting 1.0～2.0 nano materials 0.1～0.9 of carbon fiber
The short yarn cutting of basalt fibre 0.5～1.5 other 0.1～0.7
Polyethers 0.5～1.5.
Aramid pulp is to be that above aramid fiber of 22 gram/dawn is cut into 2 to 5 millimeters long with breaking tenacity, making every gram fiber specific surface area through the arrangement of sprouting wings is 2 to 5 square metres aramid pulp, because aramid fiber (aromatic polyamide) and hexanolactam belong to nylon-type together, so splendid consistency is arranged, the great characteristic of high temperature resistant and specific surface area of aramid pulp makes two kinds of materials in conjunction with firm, and intensity is higher than prior art more than three times.
Its short yarn cutting of carbon fiber, short yarn cutting of basalt fibre of adding material all is a macrofiber, can not only lubricate, can also play enhancement; Chemical assistants such as the nano material of dosing, rare earth material, polyethers can increase the performance that this nylon waters foundry goods.
Its catalyzer comprises: sodium methoxide solution, sodium hydroxide solution etc.
Its moulding is with equipment pressure formings such as pressure die-casting machine, the centrifugal rotoforming of tubular member.
But the heating zone stirs the reactor vacuumize, can throw in a plurality of accumulator of vacuumizing, pressure die-casting machine, centrifugal shaper etc.
To heat in the adding reactors such as hexanolactam, aramid pulp, the short yarn cutting of carbon fiber, auxiliary agent, vacuumize after the stirring, remove moisture content and volatile matter, add catalyzer, continue to vacuumize the discharge port of back from reactor, put into a plurality of heatable accumulator, each cylinder adds thickening material and enters moulding in the pre-hot-die before going into mould.
The catalyzer sodium methoxide solution, to stir, heat, vacuumize in dehydration under the 120-140 ℃ of temperature after 20 minutes in materials such as aramid pulp and hexanolactam, the carbon fiber adding reactor, removing vacuum adds the catalyzer sodium methylate, vacuumizes and be heated to 140 ℃, constant temperature 20 to 30 minutes, remove vacuum, putting into accumulator from feed opening is incubated, add tolylene diisocyanate before use, stir evenly, injection has been preheated to 160-180 ℃ mould polymerization extrusion forming, makes gear and can not process and can use.Catalyzer is the hydrochlorinate sodium solution.
Aramid pulp is to be cut into the 2-5 millimeters long through the arrangement of sprouting wings with aromatic polyamide (nylon-type product) long filament (its breaking tenacity is more than six times of nylon wire brute force more than 22 gram/dawn), and the specific surface area of every gram aramid pulp reaches 2-5 square metre.The very easily evenly combination in stirring of aramid pulp that discreteness is splendid and fused hexanolactam and other auxiliary agent, the mixture of formation high strength, high tenacity, high-wearing feature.Auxiliary agents such as the short yarn cutting of the carbon fiber that adds in the mixture, the short yarn cutting of basalt fibre, nano material, rare earth material, polyethers, PTFE resin replace pellet promptly to increase the performance that wear resistance was gained in strength, increased toughness again, improves product with fiber.
The invention has the beneficial effects as follows:
The tensile strength, bending strength, toughness, the wear resistance that add aramid pulp, the short yarn cutting of carbon fiber, the short yarn cutting energy of basalt fibre several times raising molten nylon piece in the hexanolactam.The reactor capacity can reach continuous production in batches when being 2000 to 5000 kilograms.Adopt the parts of pressure die-casting machine or injection molding machine precise die production can exempt from processing or few processing, no waste material produces.Make the product strength height owing to add strongthener such as aramid pulp, wear-resistant, long service life.
Embodiment
By a kind of embodiment the present invention is described:
On the reactor erecting stage, it is as follows to feed intake in reactor:
Hexanolactam 915kg
Aramid pulp 30kg
The short yarn cutting 15kg of carbon fiber
The short yarn cutting 10kg of basalt fibre
Polyethers 10kg
PTFE resin 8kg
Rare earth 3kg
Nano material 5kg
Other 4kg
The total 1000kg that feeds intake
Heat simultaneously to molten state in the sealing stirring after feeding intake, the unlatching vacuum pump vacuumizes and removes out moisture content and volatile matter when temperature reaches 135 ℃, kept 20 minutes, remove vacuum and add catalyzer sodium methoxide solution 3kg, vacuumize, react in stirring, reaction got final product in 10 to 15 minutes under 135 ℃ of temperature, remove vacuum, be put in a plurality of accumulator and be incubated.0.4% toluene, the two different chloric acid fat that add raw material weight in the accumulator before entering mould can be poured the extrusion forming to 160 ℃ the pressure die-casting machine mould of heating into after the stirring.The also available centrifugal rotation mode moulding of tubular member.Heat-treat the stress that to eliminate in the part after the moulding.
For example: make and on gear grinding machines, flank of tooth correct grinding can be used for a long time after automobile gear spare only need grind axis hole.The well lid, roadblock etc. of making urban road Infrastructure can once moulding on injection moulding machine, need not process.Make tubular member and can produce part with centrifugal rotation mode.
Pulp of aramid fiber enhanced molten nylon piece and production technique thereof and production unit provide the production unit of batch process, production technique and produce molten nylon piece, its intensity, toughness are higher than steel and conventional molten nylon piece, and product strength height, noise are low, long service life, environmentally safe.
Claims (9)
1, a kind of pulp of aramid fiber enhanced molten nylon piece, it is characterized in that: but be the technical products of industrialized mass production, its prescription, except that containing main component hexanolactam, aramid pulp, also contain the short yarn cutting of carbon fiber, the short yarn cutting of basalt fibre, toluene two different hydracid fat, nano material, rare earth material, the weight percent of each composition is:
Hexanolactam 89.0～94.0 PTFE resins 0.3～1.3
Aramid pulp 2.0～4.0 rare earths 0.1～0.5
Short yarn cutting 1.0～2.0 nano materials 0.1～0.9 of carbon fiber
The short yarn cutting of basalt fibre 0.5～1.5 other 0.1～0.7
Polyethers 0.5～1.5.
2, pulp of aramid fiber enhanced molten nylon piece according to claim 1, it is characterized in that: aramid pulp is to be that above aramid fiber of 22 gram/dawn is cut into 2 to 5 millimeters long with breaking tenacity, making every gram fiber specific surface area through the arrangement of sprouting wings is 2 to 5 square metres aramid pulp, because aramid fiber (aromatic polyamide) and hexanolactam belong to nylon-type together, so splendid consistency is arranged, the great characteristic of high temperature resistant and specific surface area of aramid pulp makes two kinds of materials in conjunction with firm, and intensity is higher than prior art more than three times.
3, pulp of aramid fiber enhanced molten nylon piece according to claim 1 is characterized in that: its short yarn cutting of carbon fiber, short yarn cutting of basalt fibre of adding material all is a macrofiber, can not only lubricate, can also play enhancement; Chemical assistants such as the nano material of dosing, rare earth material, polyethers can increase the performance that this nylon waters foundry goods.
4, pulp of aramid fiber enhanced molten nylon piece according to claim 1 is characterized in that: its catalyzer comprises: sodium methoxide solution, sodium hydroxide solution etc.
5, pulp of aramid fiber enhanced molten nylon piece according to claim 1 is characterized in that: its moulding is with equipment pressure formings such as pressure die-casting machine, the centrifugal rotoforming of tubular member.
6, pulp of aramid fiber enhanced molten nylon piece according to claim 1 is characterized in that: it is produced major equipment and comprises: but the heating zone is stirred the reactor that vacuumizes, can be thrown in a plurality of accumulator of vacuumizing, pressure die-casting machine, centrifugal shaper etc.
7, according to the production technique of any described pulp of aramid fiber enhanced molten nylon piece among the claim 1-6, it is characterized in that: will heat in the adding reactors such as hexanolactam, aramid pulp, the short yarn cutting of carbon fiber, auxiliary agent, vacuumize after the stirring, remove moisture content and volatile matter, add catalyzer, continue to vacuumize the discharge port of back from reactor, put into a plurality of heatable accumulator, each cylinder adds thickening material and enters moulding in the pre-hot-die before going into mould.
8, the production technique of pulp of aramid fiber enhanced molten nylon piece according to claim 7, it is characterized in that: the catalyzer sodium methoxide solution, with aramid pulp and hexanolactam, stir in materials such as the carbon fiber adding reactor, heat, vacuumize in dehydration under the 120-140 ℃ of temperature after 20 minutes, remove vacuum and add the catalyzer sodium methylate, vacuumize and be heated to 140 ℃, constant temperature 20 to 30 minutes, remove vacuum, putting into accumulator from feed opening is incubated, add tolylene diisocyanate before use, stir evenly, inject preheating 160-180 ℃ mould polymerization extrusion forming, make gear and can not process and to use.
9, as the production technique of claim 7 or 8 described pulp of aramid fiber enhanced molten nylon piece, it is characterized in that: catalyzer is the hydrochlorinate sodium solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610112337 CN1916079A (en) | 2006-09-04 | 2006-09-04 | Pulp of aramid fiber enhanced molten nylon piece, and producing technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610112337 CN1916079A (en) | 2006-09-04 | 2006-09-04 | Pulp of aramid fiber enhanced molten nylon piece, and producing technique |
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| Publication Number | Publication Date |
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| CN1916079A true CN1916079A (en) | 2007-02-21 |
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| CN 200610112337 Pending CN1916079A (en) | 2006-09-04 | 2006-09-04 | Pulp of aramid fiber enhanced molten nylon piece, and producing technique |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532524A (en) * | 2010-12-28 | 2012-07-04 | 合肥杰事杰新材料股份有限公司 | Nylon chopped fiber/cast nylon composite material and preparation method thereof |
| CN103232595A (en) * | 2012-04-16 | 2013-08-07 | 齐齐哈尔北坤合成高分子材料有限公司 | Modified MC nylon |
| CN103509336A (en) * | 2012-10-18 | 2014-01-15 | 中国科学院化学研究所 | Monomer casting (MC) nylon composite material and preparation method thereof |
| CN104250439A (en) * | 2013-06-26 | 2014-12-31 | 上海杰事杰新材料(集团)股份有限公司 | Reinforced wear-resistant nylon 66 composite material and preparation method thereof |
| CN106700532A (en) * | 2016-11-21 | 2017-05-24 | 泉州瀚能科技有限公司 | Novel composite nanometer energy-saving heating device shell and preparation technology thereof |
| CN113370433A (en) * | 2020-03-09 | 2021-09-10 | 邢台中车环保科技有限公司 | Method for producing cast nylon bar |
-
2006
- 2006-09-04 CN CN 200610112337 patent/CN1916079A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532524A (en) * | 2010-12-28 | 2012-07-04 | 合肥杰事杰新材料股份有限公司 | Nylon chopped fiber/cast nylon composite material and preparation method thereof |
| CN102532524B (en) * | 2010-12-28 | 2015-05-13 | 合肥杰事杰新材料股份有限公司 | Nylon chopped fiber/cast nylon composite material and preparation method thereof |
| CN103232595A (en) * | 2012-04-16 | 2013-08-07 | 齐齐哈尔北坤合成高分子材料有限公司 | Modified MC nylon |
| CN103509336A (en) * | 2012-10-18 | 2014-01-15 | 中国科学院化学研究所 | Monomer casting (MC) nylon composite material and preparation method thereof |
| CN103509336B (en) * | 2012-10-18 | 2015-09-23 | 中国科学院化学研究所 | MC nylon composite materials and preparation method thereof |
| CN104250439A (en) * | 2013-06-26 | 2014-12-31 | 上海杰事杰新材料(集团)股份有限公司 | Reinforced wear-resistant nylon 66 composite material and preparation method thereof |
| CN106700532A (en) * | 2016-11-21 | 2017-05-24 | 泉州瀚能科技有限公司 | Novel composite nanometer energy-saving heating device shell and preparation technology thereof |
| CN113370433A (en) * | 2020-03-09 | 2021-09-10 | 邢台中车环保科技有限公司 | Method for producing cast nylon bar |
| CN113370433B (en) * | 2020-03-09 | 2023-04-18 | 邢台中车环保科技有限公司 | Method for producing cast nylon bar |
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