CN104231570B - A kind of PET permanent anti-static coiled material - Google Patents
A kind of PET permanent anti-static coiled material Download PDFInfo
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- CN104231570B CN104231570B CN201410483133.9A CN201410483133A CN104231570B CN 104231570 B CN104231570 B CN 104231570B CN 201410483133 A CN201410483133 A CN 201410483133A CN 104231570 B CN104231570 B CN 104231570B
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Abstract
This case discloses a kind of PET permanent anti-static coiled material, its composition of raw materials is made up of the material of following weight/mass percentage composition: the poly quinoline of 2%～3%, the Ni-coated graphite fiber of 1%～2%, 0.1%～0.3% dispersant, surplus is polyethylene terephthalate。This case is passed through just to be joined by the additive permanent anti-static material with function improvement property in the raw material of PET at the formative stage of PET, the PET produced is made to have outstanding evenly stable permanent antistatic performance, compared to being coated with permanent anti-static agent on finished product PET, this technological operation is simple, with low cost, the PET permanent anti-static web construction prepared is more stable, even if the unexpected impaired permanent antistatic performance nor affecting on entirety in local。
Description
Technical field
The present invention relates to a kind of macromolecule membrane, particularly to a kind of PET coiled material with permanent anti-static ability。
Background technology
Polyethylene terephthalate, English name polyethyleneterephthalate, is called for short PET, and it is generally by ethylene glycol terephthalate generation dehydration condensation, PET is milky or polymer light yellow, highly crystalline, and surface smooths glossy。Having excellent physical and mechanical properties in wider temperature range, life-time service temperature is up to 120 DEG C, and electrical insulating property is excellent, even under high-temperature high-frequency, its electrical property is still better, but corona resistance is poor, creep resistance, fatigue durability, rub resistance, dimensional stability are all fine。
There is the PET material of some improved functionals in the market, such as anti-scratch PET, highlighted PET, antistatic PET etc., just for antistatic PET, along with being widely current of electronic product, the utilization rate of macromolecule membrane is more and more higher, and the electrostatic pressure value of part high polymer friction is big, there is potential safety hazard。Existing technique is all be coated with the antistatic coatings such as ATO (tin ash of Sb doped), polythiophene, white carbon black or graphite on common PET surface, but such material also has weak point: antistatic property is still undistinguished, it is destroyed once ATO coating or at coating crawling, then can cause that the antistatic effect of its final products is had a greatly reduced quality；The problem that there is oxidizable inefficacy after the coating life-time service of polythiophene type；Additionally, processing step is many, this cost both having added enterprise undoubtedly puts into, and its production process also has higher more harsh requirement, reduces the percent defective of product with this。
Summary of the invention
For the deficiencies in the prior art part, conducting polymer composite is organically combined by the present invention with inorganic antistatic material, it is intended to obtain the compound PET permanent anti-static coiled material combined together with antistatic additive。
Technical scheme is summarized as follows:
A kind of PET permanent anti-static coiled material, composition of raw materials is made up of the material of following weight/mass percentage composition:
Poly quinoline 2%～3%；
Ni-coated graphite fiber 1%～2%；
Dispersant 0.1%～0.3%；
Surplus is polyethylene terephthalate。
Preferably, described PET permanent anti-static coiled material, the component of described dispersant is: the polyvinylpyrrolidone of 80～90wt% and the polydimethyl siloxane fluid of 10～20wt%。
Preferably, described PET permanent anti-static coiled material, composition of raw materials is made up of the material of following weight/mass percentage composition:
Surplus is polyethylene terephthalate。
Preferably, described PET permanent anti-static coiled material, composition of raw materials is made up of the material of following weight/mass percentage composition:
Surplus is polyethylene terephthalate。
Preferably, described PET permanent anti-static coiled material, the particle diameter of described copper nanoparticle is 500～600 orders, and the particle diameter of nano silicon is 500～600 orders。
The invention has the beneficial effects as follows: just the additive permanent anti-static material with the function property improved is joined in the raw material of PET at the formative stage of PET, the PET produced is made to have outstanding evenly stable permanent antistatic performance, compared to being coated with permanent anti-static agent on finished product PET, this technological operation is simple, with low cost, the PET permanent anti-static web construction prepared is more stable, even if the unexpected impaired permanent antistatic performance nor affecting on entirety in local。
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, to make those skilled in the art can implement according to this with reference to description word。
A kind of PET permanent anti-static coiled material, before PET molding, by being added in PET monomer by permanent anti-static agent, obtains the PET coiled material with permanent antistatic performance, and the composition of raw materials of such PET coiled material is made up of the material of following weight/mass percentage composition:
Surplus is polyethylene terephthalate。
Macromolecular material is the material that electrical insulating property is excellent mostly, its surface resistivity > 1014Ω, macromolecular compound is mostly hydrophobic material, not easily from environment adsorption moisture and reduce sheet resistance, high polymer material all can produce electrostatic under the situations such as contact, fracture, stripping, friction, piezoelectricity, sensing, gather a large amount of electric charge, causing electrostatic hazard, serious then can cause the accident such as fire, blast。
Poly quinoline belongs to structural macromolecule conducting material, and this type of conjugacy polymer can form the macromolecular material of high conductivity after passing through doping。If this polymeric main makes the not localization of the electronics in polymer (having conjugated double bond, π bonding electron in structure as carrier), formed electric conductivity by charge-exchange。Poly quinoline molecule compatibility is good, high temperature resistant, and good stability is not oxidizable, therefore suitable as permanent anti-static material, blended with other polymer base materials, makes footing permanent anti-static material。
Ni-coated graphite fiber is a kind of filled-type inorganic metal class permanence antistatic additive, and its interpolation can effectively promote thermal shock resistance and the mechanical performance of material itself, widely applicable, and has desirable dispersion effect in the macromolecular material of thickness。The Heat stability is good of Ni-coated graphite fiber, conductive capability is strong, surface resistivity > 107Ω。
Poly(ethylene oxide) belongs to polyethers permanent antistatic agent, and its vitrification point is relatively low, and the power capacity of strand is strong, and oxygen atom density is high, it is simple to transmission electronics, has good conductive capability。
Copper nanoparticle is a kind of metal filled type anti-static material, and electric conductivity is excellent, copper powder antioxidation, stable chemical nature, the structure of nanometer shape also contributes to copper powder and is dispersed into network-like in the polymer, improves the conductive capability of copper powder, thus the antistatic property of reinforced polymer products。
Nano silicon is a kind of filled-type half-metal oxide conductive material, and its stable chemical nature is water insoluble and sour。Except as antisatic additive, it is also used as ceramet class additive and promotes the wearability of macromolecular material, mechanical strength and weatherability。
Feature according to above variety classes permanent anti-static agent, simultaneously in order to give full play to the synergism between each antistatic additive, the consumption of each additive should strictly limit。Poly quinoline, the compatibility in PET monomer of Ni-coated graphite fiber and poly(ethylene oxide) is good, poly quinoline and Ni-coated graphite fiber are the main additive of permanent anti-static, the content of poly quinoline is preferably 2wt%～3wt%, the content of Ni-coated graphite fiber is preferably 1wt%～2wt%, poly(ethylene oxide) belongs to modified model antistatic auxiliary, not necessarily additive, its content is preferably 1wt%～2wt%, copper nanoparticle and nano silicon are auxiliary type additives, not necessarily additive, consider they dispersibilities in PET, its content must lower than the good antisatic additive of other compatibilitys, the content of copper nanoparticle is preferably 0.6wt%～0.8wt%, the particle diameter of copper nanoparticle is preferably 500～600 orders；The content of nano silicon is preferably 0.5wt%～1.5wt%, and the particle diameter of nano silicon is preferably 500～600 orders。If the addition of these permanent anti-static materials is on the low side, then can affect the antistatic property of product；If the addition of these permanent anti-static materials is on the high side, then not only makes the material of these interpolations sedimentation easily occur in PET monomer and reunite, and the production cost of enterprise can be added。
When producing, in order to avoid anti-static material occurs sedimentation to assemble in PET monomer, generally require and add a small amount of dispersant。Dispersant is usually the important component of industry slurry, and consumption is few, and slurry is played Stabilization by electrostatic or sterically hindered mechanism of action by it, makes powder be in suspended state in the slurry。Polyvinylpyrrolidone (PVP) belongs to non-ionic water-soluble high molecular polymer, water soluble and multiple organic solvent, has the multiple premium properties such as bonding, thickening, suspending, dispersion, hydrotropy, complexation, film forming。Meanwhile, PVP can also reduce granule agglomeration in coating process, and because its exclusive low viscosity effect makes it become a kind of highly effective anti-agglomeration agent。Polydimethyl siloxane fluid is also a kind of well auxiliary dispersants, and it has certain froth breaking effect simultaneously。The component of this case dispersant is preferably: the polyvinylpyrrolidone of 80～90wt% and the polydimethyl siloxane fluid of 10～20wt%。The dispersal mechanism of polyvinylpyrrolidone and polydimethyl siloxane fluid is electrostatic and space stability ultimate load effect, charged dispersant molecule layer is both by electrically charged repulsion neighboring particles itself, again because space steric effect prevents the granule of Brownian movement close, produce stable composition effect, thereby may be ensured that granule is in suspended state and does not reunite。
Performance test parameter after the following is the concrete composition of raw materials of different embodiment and making PET permanent anti-static coiled material:
Table one
Although embodiment of the present invention are disclosed as above, but listed utilization that it is not restricted in description and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, the present invention is not limited to specific details。
Claims (2)
1. a PET permanent anti-static coiled material, it is characterised in that composition of raw materials is made up of the material of following weight/mass percentage composition:
2. PET permanent anti-static coiled material according to claim 1, it is characterised in that the particle diameter of described copper nanoparticle is 500～600 orders, and the particle diameter of nano silicon is 500～600 orders。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410483133.9A CN104231570B (en) | 2014-09-19 | 2014-09-19 | A kind of PET permanent anti-static coiled material |
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| CN201410483133.9A CN104231570B (en) | 2014-09-19 | 2014-09-19 | A kind of PET permanent anti-static coiled material |
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| CN104231570A CN104231570A (en) | 2014-12-24 |
| CN104231570B true CN104231570B (en) | 2016-06-22 |
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Effective date of registration: 20201230 Address after: 225600 Jiangsu province Yangzhou city Gaoyou City Ling Tong industrial concentration area Patentee after: Shituli packaging materials (Yangzhou) Co.,Ltd. Address before: 215000 Yinghu Industrial Park, Wangting Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU EXCELLENCE ENGINEERING PLASTICS Co.,Ltd. |