CN1718409A - Preparation method of nylon composite gradient pipe - Google Patents
Preparation method of nylon composite gradient pipe Download PDFInfo
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- CN1718409A CN1718409A CN200410041530.7A CN200410041530A CN1718409A CN 1718409 A CN1718409 A CN 1718409A CN 200410041530 A CN200410041530 A CN 200410041530A CN 1718409 A CN1718409 A CN 1718409A
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- modifier
- nylon
- pipeline
- preparation
- monomer
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- 239000004677 Nylon Substances 0.000 title claims abstract description 32
- 229920001778 nylon Polymers 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims description 9
- 239000002131 composite material Substances 0.000 title abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- 239000003607 modifier Substances 0.000 claims abstract description 17
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007822 coupling agent Substances 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000018044 dehydration Effects 0.000 claims description 13
- 238000006297 dehydration reaction Methods 0.000 claims description 13
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- 239000003365 glass fiber Substances 0.000 claims description 9
- 239000010881 fly ash Substances 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 8
- 238000006116 polymerization reaction Methods 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000012744 reinforcing agent Substances 0.000 claims description 4
- 239000011149 active material Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 230000003078 antioxidant effect Effects 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010954 inorganic particle Substances 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 150000003951 lactams Chemical class 0.000 claims description 2
- 239000004611 light stabiliser Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- PWXIKGAMKWRXHD-UHFFFAOYSA-N 3-butylaziridin-2-one Chemical compound CCCCC1NC1=O PWXIKGAMKWRXHD-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012190 activator Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 102000004895 Lipoproteins Human genes 0.000 description 1
- 108090001030 Lipoproteins Proteins 0.000 description 1
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- TVWWSIKTCILRBF-UHFFFAOYSA-N molybdenum trisulfide Chemical compound S=[Mo](=S)=S TVWWSIKTCILRBF-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A process for preparing the composite gradient nylon pipe includes such steps as choosing two or more modifiers with different functions, treating by coupling agent, drying, thermally fusing caprolactam, vacuum dewatering, adding said modifiers and sodium hydroxide as catalyst, vacuum dewatering, adding toluene diisocyanate, stirring, quickly pouring in preheated mould, centrifugal shaping, holding the temp, natural cooling, and demoulding.
Description
One, technical field
The present invention relates to a kind of technology of preparing of nylon pipeline, particularly a kind of process is composite modified and have a nylon complex gradient tube preparation method of gradient-structure.
Two, background technology
The world today is two main trend of world development to mould Dai Gang and to develop pipeline industry, and water-saving agriculture is irrigated the important channel that solves water resources crisis especially.Therefore, high-strength, the lightweight of Development and Production, heavy caliber nylon pipeline wear-resisting, shock-resistant, erosion resistant become the pipeline industry main developing direction it.
Monomer cast nylon (MC nylon) pipeline be under normal pressure with the caprolactam monomer of fusion, after vacuum dehydration,, directly inject the mould that is preheating to uniform temperature with auxiliary agents such as base catalyst, activators, and under the effect of centrifugal external force polymerization forming.This technology is simple and convenient, production efficiency is high, has become the main mode of production of nylon pipeline.Pure MC nylon pipeline is because of it has light weight, mechanical property is good and output height, low cost and other advantages are used widely, but unmodified nylon pipeline can not satisfy application request in some cases, as its undercapacity under the high-load condition, wearability is not good enough; Relatively poor dimensional stability and heat endurance cause machinery to cooperate deviation, wearing and tearing to increase the weight of easily.This researcher is carried out the study on the modification of MC nylon pipeline.A kind of " manufacture method of monomer cast nylon pipeline " disclosed as Chinese patent 95114266.6, it is by introducing glass fiber powder (12 ‰), di-iron trioxide (10 ‰), molybdenum trisulfide (10 ‰) in matrix, make anticorrosion enhancing MC nylon pipeline, it is applicable in the corrosive environment.These class methods only propose to improve from raw material itself, exist certain limitation, and the limited raising of its performance, have limited the further expansion of nylon pipeline utilization scope and transport capacity.
Three, summary of the invention
The object of the invention is to provide a kind of raising that can realize performances such as nylon pipeline intensity, hardness, wearability and stability simultaneously, and realize the gradient distribution structure of nylon pipeline synchronously, thereby promote nylon pipe in industries such as pipeline transportation and the water-saving irrigation preparation method of the nylon complex gradient pipeline of extensive use more.
The technical solution that realizes the object of the invention is:
Principle of the present invention is to be raw material with the caprolactam, add multiple simultaneously through the pretreated modifier of coupling agent, under the effect of base catalyst and activator, effect by the control centrifugal force field, make different materials in matrix, present regularity distribution, realize the polymerization forming of nylon complex gradient pipe because of the difference of physical and chemical performance.
Described modifier mainly comprises reinforcing agent, flexibilizer, lubricating auxiliary agent and other auxiliary agent.Wherein reinforcing agent comprises fibrous materials such as glass fibre, carbon fiber, zirconia, ZnOw material, and inorganic particle such as flyash, wollastonite, kaolin; Flexibilizer comprises polypropylene glycol ether, lauric lactam, HMPA (HPT) etc.; Lubricating auxiliary agent comprises molybdenum bisuphide, graphite, polytetrafluoroethylene (PTFE) and calcium stearate etc.; Other auxiliary agent comprises antioxidant, antistatic additive and light stabilizer etc.Described coupling agent mainly comprises silane coupler, titanate coupling agent, aluminic acid lipoprotein coupling agent and chromium of organic acid compound etc.
The preparation method of nylon complex gradient pipe of the present invention comprises following each step:
1) according to requirement, choose the modifier that two or more has different usefulness to the nylon pipeline serviceability, and through after the coupling agent treatment, dry with standby;
2) caprolactam raw material heat fused, temperature reaches 100～120 ℃, begins to vacuumize dehydration, and vacuum is 10
-1～10
-3Pa, temperature is 130～140 ℃;
3) behind lasting vacuum dehydration 10～30min, add the modifier and the catalyst NaOH that measure consumption, continue vacuum dehydration, vacuum is 10
-1～10
-3Pa, temperature is 130～140 ℃; Wherein every kind of modifier addition is 5～30% of a caprolactam monomer, and it is 5～50% of caprolactam monomer that modifier adds total amount, and the mol ratio of addition amount of sodium hydroxide and monomer is 0.002: 1;
4) behind lasting vacuum dehydration 30～90min, add cocatalyst toluene diisocyanate, the mol ratio of addition and monomer is 0.002: 1;
5) the rapid injection of mixed active material has been preheated to 160～180 ℃ mould centrifugal polymerization moulding, centrifugal rotational speed 600～1500r/min, ducted various modifier distribute because of the difference of density presents gradient in matrix;
6) behind polymerization insulation 20～30min, pipeline cools off naturally, the demoulding, promptly obtains nylon complex gradient pipe of the present invention through post processing (boiling water treating or 160～170 ℃ of oil processings) again.
The present invention compared with prior art, its remarkable advantage is: introduce on the one hand the modifier of multiple different usefulness in matrix, improve every performance indications of nylon pipeline synchronously, realize compoundization and the synthesization of its performance; Different densities, difform modifier radially are regularity distribution along pipeline under the effect of centrifugal force field on the other hand, have realized that the inside and outside wall of pipeline has the design of different mechanical performances, thereby have improved the conformability of pipeline to environment.
Four, Figure of description
Accompanying drawing is the schematic flow sheet of nylon complex gradient tube preparation method of the present invention.
Five, the specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Embodiment: in conjunction with the accompanying drawings, high-load glass fibre, fly ash grain strengthen the control of nylon complex gradient and are equipped with:
(1), glass fibre preliminary treatment: the gamma-aminopropyl-triethoxy-silane of employing 0.2% is the KH550 coupling agent treatment, and is dry with standby; (2), fly ash grain preliminary treatment: adopt 0.2% metatitanic acid fat-201 coupling agent treatment, drying is with standby; (3), with caprolactam raw material heat fused, temperature begins to vacuumize dehydration after reaching about 120 ℃, vacuum is 10
-1～10
-3Pa, temperature is 130～140 ℃; (4), continue vacuum dehydration 10～30min after, add the glass fibre, fly ash grain and the catalyst NaOH that measure consumption, continuation vacuum dehydration, vacuum is 10
-1～10
-3Pa, temperature is 130～140 ℃; Wherein the glass fibre addition 20%, fibre single thread diameter 10 μ m, length 100-200 μ m; Fly ash grain addition 15%, granularity 1～3 μ m, the mol ratio of addition amount of sodium hydroxide and monomer is 0.002: 1; (5) behind lasting vacuum dehydration 30～90min, add cocatalyst toluene diisocyanate, the mol ratio of addition and monomer is 0.002: 1; (6), the rapid injection of mixed active material has been preheated to 160～180 ℃ mould centrifugal polymerization moulding, glass fibre and flyash distribute because of difference gradient in matrix of density in the pipeline, flyash content reduces gradually from inside to outside, content of glass fiber increases gradually, the result is that the actual outer wall that bears tensile stress has big tensile strength, and inwall has bigger compression strength and wearability; (7), behind polymerization insulation 20～30min, pipeline cools off naturally, the demoulding, promptly obtains nylon complex gradient pipe of the present invention through post processing again.
Claims (3)
1, a kind of preparation method of nylon complex gradient pipe may further comprise the steps:
1.1 according to requirement, choose the modifier that two or more has different usefulness to the nylon pipeline serviceability, and through after the coupling agent treatment, dry with standby;
1.2 caprolactam raw material heat fused, temperature reaches 100～120 ℃, begins to vacuumize dehydration, and vacuum is 10
-1～10
-3Pa, temperature is 130～140 ℃;
1.3 after continuing vacuum dehydration 10～30min, add the modifier and the catalyst NaOH that measure consumption, continue vacuum dehydration, vacuum is 10
-1～10
-3Pa, temperature is 130～140 ℃; Wherein every kind of modifier addition is 5～30% of a caprolactam monomer, and it is 5～50% of caprolactam monomer that modifier adds total amount, and the mol ratio of addition amount of sodium hydroxide and monomer is 0.002: 1;
1.4 after continuing vacuum dehydration 30～90min, add cocatalyst toluene diisocyanate, the mol ratio of addition and monomer is 0.002: 1;
1.5 the rapid injection of mixed active material has been preheated to 160～180 ℃ mould centrifugal polymerization moulding, centrifugal rotational speed 600～1500r/min, ducted various modifier present the gradient distribution because of the difference of density in matrix;
1.6 behind polymerization insulation 20～30min, pipeline cools off naturally, after the demoulding, promptly obtain nylon complex gradient pipe of the present invention through post processing again.
2, the preparation method of nylon complex gradient pipe according to claim 1 is characterized in that: described modifier mainly comprises reinforcing agent, flexibilizer, lubricating auxiliary agent and other auxiliary agent.Wherein reinforcing agent is selected from fibrous materials such as glass fibre, carbon fiber, zirconia, ZnOw material, and inorganic particle such as flyash, wollastonite, kaolin; Flexibilizer is selected from polypropylene glycol ether, lauric lactam, HMPA (HPT) etc.; Lubricating auxiliary agent is selected from molybdenum bisuphide, graphite, polytetrafluoroethylene (PTFE) and calcium stearate etc.; Other auxiliary agent comprises antioxidant, antistatic additive and light stabilizer etc.
3, the preparation method of nylon complex gradient pipe according to claim 1 and 2 is characterized in that: pipeline cools off naturally, after the demoulding, again through boiling water treating or 160～170 ℃ of oil processings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410041530.7A CN100506504C (en) | 2004-07-29 | 2004-07-29 | Preparation method of nylon composite gradient pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410041530.7A CN100506504C (en) | 2004-07-29 | 2004-07-29 | Preparation method of nylon composite gradient pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1718409A true CN1718409A (en) | 2006-01-11 |
| CN100506504C CN100506504C (en) | 2009-07-01 |
Family
ID=35930410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410041530.7A Expired - Fee Related CN100506504C (en) | 2004-07-29 | 2004-07-29 | Preparation method of nylon composite gradient pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100506504C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890778A (en) * | 2010-07-06 | 2010-11-24 | 上海工程技术大学 | High resilience nylon pipe containing high lubricating powder and preparation method thereof |
| CN101579903B (en) * | 2009-06-19 | 2011-08-17 | 黄中南 | Application of polyamide alloy in preparation of pipelines and pipe fittings with flanges or wellhead seat products |
| CN102502205A (en) * | 2011-10-31 | 2012-06-20 | 陈红升 | High-strength support roller and manufacture method |
| CN102617628A (en) * | 2012-02-29 | 2012-08-01 | 安徽硅宝翔飞有机硅新材料有限公司 | Preparation method of bisamide-based silane coupling agent |
| CN103073884A (en) * | 2013-01-29 | 2013-05-01 | 陕西工业职业技术学院 | Self-lubrication roller bearing material for spinning machine and preparation method of self-lubrication roller bearing material |
| CN103396663A (en) * | 2013-08-13 | 2013-11-20 | 株洲时代新材料科技股份有限公司 | Transverse limiting plate for automobile and preparation method thereof |
| CN103450469A (en) * | 2013-08-23 | 2013-12-18 | 淮阴工学院 | Preparation method of cast nylon composite material with high friction-reducing and anti-wear surface layer |
| CN103804681A (en) * | 2014-02-12 | 2014-05-21 | 扬州赛尔达尼龙制造有限公司 | Manufacturing method of driving wheel made of nylon-based gradient composite |
| CN104031262A (en) * | 2014-04-30 | 2014-09-10 | 中国科学院化学研究所 | High molecular weight nylon powder applied in 3D printing, and preparation method thereof |
| CN104974512A (en) * | 2015-07-18 | 2015-10-14 | 乐清市国海传动设备有限公司 | Anion polymerized nylon roller and manufacturing method thereof |
| CN104031262B (en) * | 2014-04-30 | 2016-11-30 | 中国科学院化学研究所 | A kind of high molecular weight nylon powder body that can be applicable to 3D printing and preparation method thereof |
| CN108047706A (en) * | 2017-12-15 | 2018-05-18 | 上海博立科技发展有限公司 | A kind of pressure-bearing high temperature resistant synthetic material peculiar to vessel and its preparation process |
| CN109441952A (en) * | 2018-12-25 | 2019-03-08 | 浙江双金机械集团股份有限公司 | The processing method of crusher axle sleeve |
| CN114456584A (en) * | 2021-12-30 | 2022-05-10 | 江苏亚电新材料有限公司 | Post-treatment process of MC nylon composite material |
-
2004
- 2004-07-29 CN CN200410041530.7A patent/CN100506504C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579903B (en) * | 2009-06-19 | 2011-08-17 | 黄中南 | Application of polyamide alloy in preparation of pipelines and pipe fittings with flanges or wellhead seat products |
| CN101890778B (en) * | 2010-07-06 | 2013-01-09 | 上海工程技术大学 | High resilience nylon pipe containing high lubricating powder and preparation method thereof |
| CN101890778A (en) * | 2010-07-06 | 2010-11-24 | 上海工程技术大学 | High resilience nylon pipe containing high lubricating powder and preparation method thereof |
| CN102502205A (en) * | 2011-10-31 | 2012-06-20 | 陈红升 | High-strength support roller and manufacture method |
| CN102617628B (en) * | 2012-02-29 | 2015-06-10 | 安徽硅宝翔飞有机硅新材料有限公司 | Preparation method of bisamide-based silane coupling agent |
| CN102617628A (en) * | 2012-02-29 | 2012-08-01 | 安徽硅宝翔飞有机硅新材料有限公司 | Preparation method of bisamide-based silane coupling agent |
| CN103073884A (en) * | 2013-01-29 | 2013-05-01 | 陕西工业职业技术学院 | Self-lubrication roller bearing material for spinning machine and preparation method of self-lubrication roller bearing material |
| CN103396663A (en) * | 2013-08-13 | 2013-11-20 | 株洲时代新材料科技股份有限公司 | Transverse limiting plate for automobile and preparation method thereof |
| CN103396663B (en) * | 2013-08-13 | 2016-12-28 | 株洲时代新材料科技股份有限公司 | A kind of automobile cross spacing plate and preparation method thereof |
| CN103450469A (en) * | 2013-08-23 | 2013-12-18 | 淮阴工学院 | Preparation method of cast nylon composite material with high friction-reducing and anti-wear surface layer |
| CN103804681A (en) * | 2014-02-12 | 2014-05-21 | 扬州赛尔达尼龙制造有限公司 | Manufacturing method of driving wheel made of nylon-based gradient composite |
| CN104031262B (en) * | 2014-04-30 | 2016-11-30 | 中国科学院化学研究所 | A kind of high molecular weight nylon powder body that can be applicable to 3D printing and preparation method thereof |
| CN104031262A (en) * | 2014-04-30 | 2014-09-10 | 中国科学院化学研究所 | High molecular weight nylon powder applied in 3D printing, and preparation method thereof |
| CN104974512A (en) * | 2015-07-18 | 2015-10-14 | 乐清市国海传动设备有限公司 | Anion polymerized nylon roller and manufacturing method thereof |
| CN104974512B (en) * | 2015-07-18 | 2017-12-08 | 乐清市国海传动设备有限公司 | The nylon carrying roller and its manufacture method of a kind of anionic polymerisation |
| CN108047706A (en) * | 2017-12-15 | 2018-05-18 | 上海博立科技发展有限公司 | A kind of pressure-bearing high temperature resistant synthetic material peculiar to vessel and its preparation process |
| CN109441952A (en) * | 2018-12-25 | 2019-03-08 | 浙江双金机械集团股份有限公司 | The processing method of crusher axle sleeve |
| CN114456584A (en) * | 2021-12-30 | 2022-05-10 | 江苏亚电新材料有限公司 | Post-treatment process of MC nylon composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100506504C (en) | 2009-07-01 |
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