CN102516689A - Conductive film for coal mine ventilation tube - Google Patents

Conductive film for coal mine ventilation tube Download PDF

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Publication number
CN102516689A
CN102516689A CN2011104443823A CN201110444382A CN102516689A CN 102516689 A CN102516689 A CN 102516689A CN 2011104443823 A CN2011104443823 A CN 2011104443823A CN 201110444382 A CN201110444382 A CN 201110444382A CN 102516689 A CN102516689 A CN 102516689A
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conducting film
air duct
parts
conductive film
softening agent
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CN102516689B (en
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朱金浩
陈忠华
曾亮
吴剑飞
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ZHEJIANG BOTAI PLASTIC CO Ltd
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ZHEJIANG BOTAI PLASTIC CO Ltd
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Abstract

The invention relates to a conductive film for a coal mine ventilation tube. The conductive film is obtained by taking polyvinyl chloride (PVC) resin powder, a plasticizer, an antistatic agent and activated calcium carbonate as main raw materials, adding a flame retardant, soybean oil, a stabilizer and pigment to serve as auxiliary materials, and manufacturing through the processes of raising temperature and stirring, banburying, filtering, performing four-roll calendaring, performing matte embossing, cooling and setting, cutting edges and winding. The conductive film has durable electrical conductivity, and also has the advantages of high tensile strength, right-angle tearing strength and flame retardance and the like.

Description

The colliery air duct is used conducting film
Technical field
The invention belongs to PVC film field of functional materials, be specifically related to the colliery air duct and use electro-conductive material.
Background technology
Under the coal mine ventilating duct be by air duct cloth through sewing up or being bonded, be mainly used in the workplace that the down-hole does not form ventilation circuit so that oxygen is provided and prevents gas accumulation to the staff, production plays important effect to coal mine downhole safety.Getting well with bad of ventilating duct performance is mainly reflected on the air duct cloth.For many years, air duct cloth is many makes with rubber; The rubber air duct is furnished with a lot of shortcomings,, work-ing life high like cost weak point, complex process, flame resistivity and static resistance is relatively poor and weight greatly, windage is coated with the pollution etc. of powder more greatly, outward.For obtaining in wide temperature range, to have good mechanical properties; Have good anti-combustion, the ventilating duct of antistatic property simultaneously; To ensure the ventilation safety under the mine, the anlistatig air duct that therefore has excellent mechanical performances is significant with the exploitation of material.SE (PVC) is one of resin kind of consumption maximum in world's plastics industry, and its resistance is up to 10 15Ω or higher.Excellent electric insulating can cause material under some occasion, to use being prone to build-up of static charges and cause damage even lead to disaster.Therefore the exploitation of PVC Antistatic Materials has been become the important topic of PVC scientific research and production.
Make the rapid discharge of high polymer material can prevent that electrostatic from gathering through improving polymer surface specific conductivity or volume conductance; Adding static inhibitor also is one of effective ways that improve the polymer surface specific conductivity, and improve the superpolymer volume conductance can adopt add conductive filler material or with the technology of other electroconductive molecule blend.Different according to addition manner, the use of PVC static inhibitor can be divided into two types on outer spreading type and Nei Jia type.The outer spreading type static inhibitor is to be coated on product surface through methods such as brushing, spraying or dip-coatings, and their instant effects are suitable for extensively, but takes off mistake because of friction, washing easily.Therefore anti-electrostatic effect temporary transient or short-term can only be provided.In to add the type static inhibitor be the time to join in the resin in batching; It is scattered in the whole polymkeric substance equably; It can form uniform antistatic layer, its rub resistance, wash resistant from macromolecular material inside to surface transport on the surface; Usefulness is lasting, is widely used static inhibitor type in the macromolecular material.
" doping " is the effective way that realizes conductive polymer, and confirmed its safety and practicality.Traditional colliery air duct is used conducting film, usually adopts the conducting film that adheres to conductive coating, and its wear-resisting wearing quality has been fit to not the use under the intense environment such as colliery air duct far away.Therefore adopt polymer " doping " to realize that its lasting conduction is a good selection; But another problem that macromolecule member material " doping " exists is how to realize the abundant fusion of each constituent materials such as macromolecular material PVC, electro-conductive material and various fillers, thereby has good dispersiveness and consistency.Therefore, be necessary to develop a kind of colliery air duct and use conducting film,, find good " doping " prescription, make each component have good dispersiveness and consistency through optimizing complete processing.Make product possess the conductive capability of durable on this basis, and possess good tensile, angle tear strength and flame retardant resistance.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of to be had good " dopings " and fills a prescription, and the colliery air duct that possesses good antistatic performance, tensile strength, angle tear strength and flame retardant resistance is used conducting film.
Said colliery air duct uses conducting film to adopt polyvinyl chloride resin powder, softening agent, static inhibitor and treated carbonates to be main raw material; Add fire retardant, VT 18, stablizer, colorant as auxiliary material, through intensification stirring, banburying, filtration, four-roll calendaring, cloudy surface cotton ginning, cooling and shaping, cutting edge, the coiling process conducting film that is made; Wherein, in polyvinyl chloride resin powder 100 weight parts, the consumption of softening agent, static inhibitor, treated carbonates, fire retardant, VT 18, stablizer, colorant is respectively 10 ~ 20 parts, 10 ~ 20 parts, 20 ~ 40 parts, 5 ~ 15 parts, 1 ~ 5 part, 1 ~ 5 part, 0.1 ~ 2 part;
Wherein, the preparation condition of treated carbonates is: aluminic acid ester consumption be lime carbonate 1 ~ 3%, revolution is that 15 000 ~ 17000 r/min, emulsifying temperature are that 70 ~ 85 ℃, emulsification times are that 50 ~ 70 min, soaking time are 30 ~ 50 min.
Preferably, the polymerization degree of described polyvinyl chloride resin powder is 1600, and softening agent is DOP; Static inhibitor is positively charged ion softening agent TC-90; Stablizer is the barium zinc stabilizer, and treated carbonates is the lime carbonate via the aluminate coupling agent activation modification, and fire retardant is the Mg (OH) of 1:3 weight ratio 2And Al (OH) 3
Preferably, said conducting film prepares in the process, and whipping temp is 60 ℃ ~ 110 ℃, and the banburying temperature is 210 ℃ ~ 250 ℃, and filtration temperature is 140 ℃ ~ 160 ℃, and the four-roll calendaring temperature is 140 ℃ ~ 200 ℃, and control speed is 50 ~ 80 m/min.
Preferably, the surface resistivity of said conducting film≤6 * 10 9Ω.
The invention has the beneficial effects as follows:
1. through in the PVC film formulation, adding cationic antistatic agent TC-90 and optimizing its complete processing, make product have excellent conducting performance.Compare with conducting film, have wear-resisting durable characteristic with conductive coating, the use under the intense environment such as suitable colliery air duct, product can keep the favorable conductive ability for a long time.
2. the lime carbonate after the aluminate coupling agent activation modification is handled more is prone to fully merge with organic-compound system, has good dispersiveness and consistency.Treated carbonates is filled in the organic polymer, makes the interface have plasticity-, can prevent that powder and substrate interface from peeling off and stress raisers and generation of cracks, thereby improve its over-all properties, like performances such as tensile strength, angle tear strength, snappinesies.
Embodiment
Below in conjunction with embodiment the present invention is done further detailed explanation, but be not restriction protection domain of the present invention.
The colliery air duct is with the preparation of conducting film:
Batching (table 1) → polyvinyl chloride resin powder adds the liquid type additive earlier and after 70 ℃ of stirrings, adds powder additives again and get into banburyings (230 ℃ of temperature) → two rollings wheel 95 ℃ ~ 100 ℃ backs that stir and continue plasticizing → filtration (155 ℃ of temperature) → four-roll calendaring (185 ℃ of preceding top rolls, 165 ℃ of middle top rolls, 155 ℃ of lower rolls, after lower roll 150 ℃) → cloudy surface cotton ginning → cooling and shaping → cutting edge → batch → finished product.Control speed is 65 m/min during this time.
Colliery air duct by above-mentioned prepared gained is seen table 2 with the test result of conducting film inner quality, explains that the prepared colliery of this technology air duct possesses advantages such as good antistatic performance, tensile strength, angle tear strength, flame retardant resistance with conducting film.
Figure 420237DEST_PATH_IMAGE001
Figure 87979DEST_PATH_IMAGE002

Claims (4)

1. a colliery air duct is used conducting film; It is characterized in that being got by following step preparation: adopting polyvinyl chloride resin powder, softening agent, static inhibitor and treated carbonates is main raw material; Add fire retardant, VT 18, stablizer, colorant as auxiliary material, through intensification stirring, banburying, filtration, four-roll calendaring, cloudy surface cotton ginning, cooling and shaping, cutting edge, the coiling process conducting film that is made;
Wherein, in polyvinyl chloride resin powder 100 weight parts, the consumption of softening agent, static inhibitor, treated carbonates, fire retardant, VT 18, stablizer, colorant is respectively 10 ~ 20 parts, 10 ~ 20 parts, 20 ~ 40 parts, 5 ~ 15 parts, 1 ~ 5 part, 1 ~ 5 part, 0.1 ~ 2 part;
Wherein, the preparation condition of treated carbonates is: aluminic acid ester consumption be lime carbonate 1 ~ 3%, revolution is that 15 000 ~ 17000 r/min, emulsifying temperature are that 70 ~ 85 ℃, emulsification times are that 50 ~ 70 min, soaking time are 30 ~ 50 min.
2. colliery according to claim 1 air duct is used conducting film; It is characterized in that: the polymerization degree of described polyvinyl chloride resin powder is 1600; Softening agent is DOP, and static inhibitor is positively charged ion softening agent TC-90, and stablizer is the barium zinc stabilizer; Treated carbonates is the lime carbonate via the aluminate coupling agent activation modification, and fire retardant is the Mg (OH) of 1:3 weight ratio 2And Al (OH) 3
3. colliery according to claim 1 air duct is used conducting film; It is characterized in that: said conducting film prepares in the process; Whipping temp is 60 ℃ ~ 110 ℃, and the banburying temperature is 210 ℃ ~ 250 ℃, and filtration temperature is 140 ℃ ~ 160 ℃; The four-roll calendaring temperature is 140 ℃ ~ 200 ℃, and control speed is 50 ~ 80 m/min.
4. colliery according to claim 1 air duct is used conducting film, it is characterized in that: the surface resistivity of said conducting film≤6 * 10 9Ω.
CN 201110444382 2011-12-27 2011-12-27 Conductive film for coal mine ventilation tube Active CN102516689B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103044804A (en) * 2012-12-11 2013-04-17 浙江博泰塑胶有限公司 Flame-retardant transparent floor film and production technology thereof
CN104356550A (en) * 2014-11-14 2015-02-18 浙江博泰塑胶有限公司 Flame-retardant smoke suppression glass decoration applique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1072978A (en) * 1991-12-03 1993-06-09 上海宝山钢铁总厂 A kind of preparation method of antistatic wallpaper
CN101497727A (en) * 2009-03-04 2009-08-05 南亚塑胶工业股份有限公司 PVC resin composition and product thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1072978A (en) * 1991-12-03 1993-06-09 上海宝山钢铁总厂 A kind of preparation method of antistatic wallpaper
CN101497727A (en) * 2009-03-04 2009-08-05 南亚塑胶工业股份有限公司 PVC resin composition and product thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103044804A (en) * 2012-12-11 2013-04-17 浙江博泰塑胶有限公司 Flame-retardant transparent floor film and production technology thereof
CN103044804B (en) * 2012-12-11 2015-07-29 浙江博泰塑胶有限公司 A kind of Flame-retardant transparent floor film and production technique thereof
CN104356550A (en) * 2014-11-14 2015-02-18 浙江博泰塑胶有限公司 Flame-retardant smoke suppression glass decoration applique
CN104356550B (en) * 2014-11-14 2016-09-14 浙江博泰塑胶有限公司 Flame-retardant smoke inhibition glass decoration applique

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