CN101565542A - Conductive MC nylon material and production method thereof - Google Patents
Conductive MC nylon material and production method thereof Download PDFInfo
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- CN101565542A CN101565542A CNA2008100240832A CN200810024083A CN101565542A CN 101565542 A CN101565542 A CN 101565542A CN A2008100240832 A CNA2008100240832 A CN A2008100240832A CN 200810024083 A CN200810024083 A CN 200810024083A CN 101565542 A CN101565542 A CN 101565542A
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Abstract
The invention relates to a conductive MC nylon material and a production method thereof and belongs to the technical fields of high-pressure string-passing wheels in electric power facilities, radio frequency interference, or the like. The production method of the conductive MC nylon material comprises the following steps: firstly, putting nylon monomers in a melting reactor for thermal melting; then, dewatering the nylon monomers in vacuum and sequentially adding a catalyst and conductive graphite; dewatering the mixture in vacuum and adding an aid catalyst; casting and thermally treating the new mixture in a die; and carrying out fine processing to form a finished product. The conductive MC nylon prepared by the technology has a volume resistivity of 10<6> to 10<14> omega.cm. The unit resistivity of the product is changed to prevent electrostatic conduction from generating electric sparks and can satisfy the requirements for electrostatic dispersion and electrostatic discharge protection.
Description
Technical field
The present invention relates to the high pressure wire-crossing wheel in the electric power facility, or technical field such as Radio frequency interference.
Background technology
MC nylon claims monomer moulding casting nylon again, is to adopt the special process cast poymerization to form.The molecular weight height of MC nylon, degree of crystallinity is big, and internal stress is than little with other forming method, and every physics, mechanical property are higher than nylon 6 and nylon 66.The frictional coefficient of MC nylon is low, and self-lubricating property is good, and wear resistance is splendid, long service life; And have density little, in light weight, processing is quick, keeps in repair characteristics such as easy.Be widely used in industries such as light industry and machinery, building machinery, mining machinery, shipyard machine tool, chemical machinery such as sugaring, papermaking, instrument weaving, packing both at home and abroad.But existing MC nylon function is many not enough, as no electroconductibility, can't satisfy the demand on anti-electrostatic.
Summary of the invention
The present invention's first purpose is to invent a kind of MC nylon material with conductivity.
MC nylon material with conductivity comprises nylon monomer, catalyzer and promotor, also comprise conductive carbon black or electrically conductive graphite, wherein conductive carbon black or electrically conductive graphite account for total mass 0.5～2.5%, catalyzer account for total mass 0.1～0.2%, promotor accounts for 0.4～0.6% of total mass.
The present invention's second purpose is to invent a kind of production method with MC nylon material of conductivity.
The present invention includes following steps:
1) nylon monomer is put into melt still hot melt, made raw material A;
2), obtain compound B with raw material A vacuum hydro-extraction;
3) in compound B, add catalyzer, form compound C;
4) in compound C, add electrically conductive graphite, form compound D;
5) compound D is carried out vacuum hydro-extraction, obtain compound E;
6) in compound E, add promotor, mix, form compound F;
7) in mould, F casts with compound;
8) thermal treatment;
9) carry out precision work again, form finished product.
General MC nylon volume specific resistance is 10
14～10
15About Ω .cm, the conductive MC nylon volume specific resistance of making through above technology is 10
6～10
14Ω .cm.The product unit resistance rate that the present invention forms changes to some extent, static is derived can not produce electrical spark, can satisfy the requirement of electrostatic dissipation and electrostatic discharge (ESD) protection.
In addition, the hot melting temperature in the step 1) of the present invention is 100 ℃～130 ℃.
Vacuum tightness＞99.75KPa when dewatering step 2); Temperature is 160 ± 10 ℃.
The adding quality of catalyzer is 1 ‰～2 ‰ of a compound C total mass in the step 3).
Catalyzer can be NaOH or KOH or LiOHH
2O.
The electro-conductive material quality that adds in the step 4) is 0.5～2.5% of a compound D total mass.Also can add pigment simultaneously.
The adding quality of promotor is 4 ‰～6 ‰ of a compound F total mass in the step 6).
Wherein, heat treated water temperature is 98 ℃～100 ℃ in the step 8), 6～12 hours time.
Embodiment
Concrete production craft step is as follows:
1, nylon monomer is put into melt still hot melt, made raw material A.
The hot melting temperature scope is: 100 ℃～130 ℃.
2, raw material A is carried out vacuum hydro-extraction, obtain compound B.
Wherein, vacuum tightness is greater than 99.75KPa; Temperature is 160 ± 10 ℃.
3, in compound B, add catalyzer, form compound C.
Wherein, the adding quality of catalyzer is 1～2 ‰ of a compound C total mass.
Spendable catalyzer can be NaOH or KOH or LiOHH
2O.
4, in compound C, add electrically conductive graphite, form compound D.Wherein, the electro-conductive material quality of adding is 0.5～2.5% of a compound D total mass.
Also can add an amount of pigment simultaneously.
5, compound D is carried out vacuum hydro-extraction, obtain compound E.
Wherein, vacuum tightness is greater than 99.75KPa; Temperature is 160 ± 10 ℃
6, in compound E, add promotor, mix, form compound F.
Wherein, the adding quality of promotor is 4 ‰～6 ‰ of a compound F total mass.
Promotor can be TDI or MDI or PAPI.
7, in mould, F casts with compound.
8, thermal treatment.
Wherein, heat treated water temperature is controlled at 98 ℃～100 ℃, and according to thickness, the time was controlled at 6～12 hours.
9, carry out precision work again, form finished product.
General MC nylon volume specific resistance is 10
14～10
15About Ω .cm.
The conductive MC nylon volume specific resistance of making through above technology is 10
6～10
14Ω .cm.
Claims (10)
1, a kind of conductive MC nylon material, comprise nylon monomer, catalyzer and promotor, it is characterized in that also comprising conductive carbon black or electrically conductive graphite, wherein conductive carbon black or electrically conductive graphite account for total mass 0.5～2.5%, catalyzer account for total mass 0.1～0.2%, promotor accounts for 0.4～0.6% of total mass.
2, a kind of production method of conductive MC nylon material according to claim 1 is characterized in that may further comprise the steps:
1) nylon monomer is put into melt still hot melt, made raw material A;
2), obtain compound B with raw material A vacuum hydro-extraction;
3) in compound B, add catalyzer, form compound C;
4) in compound C, add electrically conductive graphite, form compound D;
5) compound D is carried out vacuum hydro-extraction, obtain compound E;
6) in compound E, add promotor, mix, form compound F;
7) in mould, F casts with compound;
8) thermal treatment;
9) carry out precision work again, form finished product.
3,, it is characterized in that the hot melting temperature in the step 1) is 100 ℃～130 ℃ according to the described method of claim 2.
4, according to the described method of claim 2, it is characterized in that step 2) in when dehydration vacuum tightness＞99.75KPa; Temperature is 160 ± 10 ℃.
5, according to the described method of claim 2, the adding quality that it is characterized in that catalyzer in the step 3) is 1 ‰～2 ‰ of a compound C total mass.
6,, it is characterized in that catalyzer is NaOH or KOH or LiOHH in the step 3) according to claim 2 or 4 described methods
2O.
7,, it is characterized in that the electro-conductive material quality that adds in the step 4) is 0.5～2.5% of a compound D total mass according to the described method of claim 2.
8,, it is characterized in that adding simultaneously in the step 4) pigment according to the described method of claim 2.
9, according to the described method of claim 2, the adding quality that it is characterized in that promotor in the step 6) is 4 ‰～6 ‰ of a compound F total mass.
10,, it is characterized in that in the step 8) that wherein, heat treated water temperature is 98 ℃～100 ℃, 6～12 hours time according to the described method of claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100240832A CN101565542A (en) | 2008-04-28 | 2008-04-28 | Conductive MC nylon material and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100240832A CN101565542A (en) | 2008-04-28 | 2008-04-28 | Conductive MC nylon material and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101565542A true CN101565542A (en) | 2009-10-28 |
Family
ID=41281915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100240832A Pending CN101565542A (en) | 2008-04-28 | 2008-04-28 | Conductive MC nylon material and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101565542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260406A (en) * | 2011-07-05 | 2011-11-30 | 南京理工大学 | Methyl cellulose (MC) nylon nano conductive composite material and preparation method thereof |
| 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 |
-
2008
- 2008-04-28 CN CNA2008100240832A patent/CN101565542A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260406A (en) * | 2011-07-05 | 2011-11-30 | 南京理工大学 | Methyl cellulose (MC) nylon nano conductive composite material and preparation method thereof |
| CN102260406B (en) * | 2011-07-05 | 2013-01-30 | 南京理工大学 | Methyl cellulose (MC) nylon nano conductive composite material and preparation method thereof |
| 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 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091028 |