CN103741474B - A kind of high-strength PVC covering cloth - Google Patents
A kind of high-strength PVC covering cloth Download PDFInfo
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- CN103741474B CN103741474B CN201310720166.6A CN201310720166A CN103741474B CN 103741474 B CN103741474 B CN 103741474B CN 201310720166 A CN201310720166 A CN 201310720166A CN 103741474 B CN103741474 B CN 103741474B
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Abstract
The invention discloses a kind of high-strength PVC covering cloth, it is made up of grid cloth double-coated PVC coating, and the composition of raw materials of described PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 ~ 90 parts, 55 ~ 65 parts, calcium carbonate, chlorinated paraffin wax 3 ~ 6 parts, stabilizing agent 3 ~ 6 parts, Porous deproteinized bone solvent naphtha 3 ~ 10 parts, 1 ~ 8 part, vinylpyridine system adhesive, fire-retardant rubber cement 7 ~ 20 parts, titanium dioxide 3 ~ 8 parts, uv-resistant agent 0.1 ~ 0.8 part and heat-insulating powder 2 ~ 30 parts.Described heat-insulating powder is hollow glass micropearl and polyvinyl acetate is the mixture of 100:1 ~ 5 by ratio of weight and the number of copies.Compared with prior art, this covering cloth TENSILE STRENGTH is up to 3300N/30mm, and ultraviolet reflectivity and infrared barrier rate, up to 95%, keep good stable mechanical property after senile experiment.
Description
Technical field
The present invention relates to a kind of PVC covering cloth, be specifically related to a kind of high-strength PVC covering cloth.
Background technology
PVC covering cloth is base fabric coated on both sides PVC paste resin.Compared with general PE tarpaulin, PVC tarpaulin rain proofness is much better than PP, PE paulin, all has been widely used in fields such as paulin room, automobile, train, storages.In addition, PVC cost is low, and abundance is nontoxic, is a kind of membrane material be worthy to be popularized.But low, the fire protecting performance of PVC covering cloth intensity, the easily defect such as aging that prior art is produced, can not meet the needs in market.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, a kind of high-strength PVC covering cloth is provided.
For realizing object of the present invention, technical scheme of the present invention is: a kind of high-strength PVC covering cloth, be made up of grid cloth double-coated PVC coating, the composition of raw materials of described PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 ~ 90 parts, 55 ~ 65 parts, calcium carbonate, chlorinated paraffin wax 3 ~ 6 parts, stabilizing agent 3 ~ 6 parts, Porous deproteinized bone solvent naphtha 3 ~ 10 parts, 1 ~ 8 part, vinylpyridine system adhesive, fire-retardant rubber cement 0 ~ 30 part, titanium dioxide 0 ~ 8 part, uv-resistant agent 0 ~ 0.8 part and heat-insulating powder 0 ~ 30 part.Described grid cloth can be polyester filament plain, can also be even nylon fiber grid cloth.The specification of polyester filament plain can be 1000D/18 × 18.Add the viscosity that Porous deproteinized bone solvent naphtha reduces PVC paste resin in the formula of this PVC coating, decrease the consumption of the plasticizer of nearly 10 times, thus improve the hardness of PVC covering cloth; With the addition of vinylpyridine system adhesive and improve bonding strength between scrim layer and PVC paste resin, improve the peel strength of PVC covering cloth.
In order to improve the fire protecting performance of PVC covering cloth and reduce the mechanical deficiencies of PVC covering cloth, preferably, the composition of raw materials of described PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 ~ 90 parts, 55 ~ 65 parts, calcium carbonate, chlorinated paraffin wax 3 ~ 6 parts, stabilizing agent 3 ~ 6 parts, Porous deproteinized bone solvent naphtha 3 ~ 10 parts, 1 ~ 8 part, vinylpyridine system adhesive, fire-retardant rubber cement 7 ~ 30 parts, titanium dioxide 0 ~ 8 part, uv-resistant agent 0 ~ 0.8 part and heat-insulating powder 0 ~ 30 part.Fire-resistant composition adds in the composition of raw materials of PVC coating with the form of pre-dispersed fire-retardant rubber cement, makes flameproof effect more even, also reduces because of the uneven mechanical deficiencies caused of fire-resistant composition dispersion.
In order to improve the ageing resistace of PVC covering cloth, still more preferably, the composition of raw materials of described PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 ~ 90 parts, 55 ~ 65 parts, calcium carbonate, chlorinated paraffin wax 3 ~ 6 parts, stabilizing agent 3 ~ 6 parts, Porous deproteinized bone solvent naphtha 3 ~ 10 parts, 1 ~ 8 part, vinylpyridine system adhesive, fire-retardant rubber cement 7 ~ 30 parts, titanium dioxide 3 ~ 8 parts, uv-resistant agent 0.1 ~ 0.8 part and heat-insulating powder 0 ~ 30 part.Ultraviolet-resistent property is by adding titanium dioxide and uv-resistant agent improves simultaneously, uv-resistant agent is expensive, and itself and titanium dioxide share, and titanium dioxide can absorb ultraviolet on the one hand, reduce ultraviolet to damage the performance of covering cloth, reduce uv-resistant agent consumption, and then reduce the cost of covering cloth, on the other hand, titanium dioxide covering is high, the penetrance of ultraviolet to covering cloth can be reduced, make covering cloth have stable color, improve ageing resistace.
In order to improve the resistance to ag(e)ing of PVC covering cloth, still more preferably, the composition of raw materials of described PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 ~ 90 parts, 55 ~ 65 parts, calcium carbonate, chlorinated paraffin wax 3 ~ 6 parts, stabilizing agent 3 ~ 6 parts, Porous deproteinized bone solvent naphtha 3 ~ 10 parts, 1 ~ 8 part, vinylpyridine system adhesive, fire-retardant rubber cement 7 ~ 20 parts, titanium dioxide 3 ~ 8 parts, uv-resistant agent 0.1 ~ 0.8 part and heat-insulating powder 2 ~ 30 parts.Increase heat-insulating powder can be isolated and/or reflected P VC covering cloth transmits from environment light and/or heat, improve fast light, the heat endurance of PVC covering cloth.Heat-insulating powder can be the powder with Gao Guang/heat reflectivity, as glass dust, can also be the powder of low thermal conductivity, as aluminium nitride, have hollow-core construction powder etc.
PVC covering cloth is manufactured and the toughness improving PVC covering cloth in order to be more suitable for laminating, preferably, initial boiling point >=203 DEG C of described Porous deproteinized bone solvent naphtha, the end point of distillation≤243 DEG C, flash-point >=80 DEG C.This Porous deproteinized bone solvent naphtha dissolubility is good, volatility is good, can reduce the consumption of plasticizer, improve the ductility of polyvinyl chloride resin, simultaneously aromatic hydrocarbons, safe, harmless, and flash-point is high, handling safety, is suitable for laminating and manufactures PVC covering cloth.
In order to improve the fire protecting performance of PVC covering cloth, preferably, described fire-retardant rubber cement is formed with 7 ~ 12 parts of fire retardant mixing making beating by 3 ~ 8 parts of pungent diester in weight.Described fire retardant can be antimony sesquioxide powder, antimonous oxide not only itself has flame retardant effect, the chlorinated paraffin wax as extender plasticizer that itself and this PVC coating formula add has good cooperative flame retardant effect, improves flame retardant effect, reduces the consumption of antimonous oxide, simplifies formula.
In order to improve the fire protecting performance of PVC covering cloth and improve process operability, preferably, described fire retardant is the coated encapsulated antimony sesquioxide powder of neoprene latex.Neoprene latex is coated improves the compatibility that fire retardant is oxidized two antimony and PVC, makes fire retardant be evenly dispersed in resin, and reduce amount of flame-retardant agent, neoprene also helps the toughness improving PVC covering cloth; And neoprene latex is graininess, enhance its mobility, overcome in PVC coating and directly allocate by components such as neoprene latex, antimonous oxide, chlorinated paraffin waxs the roll banding mold sticking easily occurred.The preparation method of the encapsulated antimony sesquioxide powder that neoprene is coated is: be 10.5 ~ 12 by neoprene latex by 5% sodium hydroxide solution adjust ph, adds the mixed solution of tetraethylthiuram disulfide and benzene, carries out chain rupture process 2 ~ 6h; Add antimonous oxide and emulsifying agent by the polychloroprene latex toward chain rupture, after being uniformly dispersed with three roller dispersion machines, being heated to 60 ~ 90 DEG C, and keeping 10 ~ 30min; To add in 0.5% ~ 1% flocculating agent aqueous solution of 60 ~ 90 DEG C through heat treated latex, stir until all latex adds, slaking 10 ~ 30min, flocculating agent can be any one in aluminium chloride, aluminum sulfate, calcium chloride; By the condensation product after agglomeration process, dewatering to moisture is 30 ~ 50%, then spraying dry obtains the≤micelle of 20um, the encapsulated antimony sesquioxide powder that namely neoprene latex is coated.Wherein, polychloroprene latex: tetraethylthiuram disulfide: benzene: emulsifying agent, the flocculating agent aqueous solution: ratio of weight and number 100:0.5 ~ 1.5:1.0 ~ 3.0:1 ~ 5:20 ~ 200:500 ~ 2000 of 5% sodium hydrate aqueous solution.
In order to improve the ageing resistace of PVC covering cloth, preferably, described titanium dioxide is anatase thpe white powder.Anatase thpe white powder has good covering and dispersiveness, and its whiteness is higher than rutile type titanium white, can improve uvioresistant, ageing resistace further.
In order to improve the photo and thermal stability of PVC covering cloth, preferably, described heat-insulating powder is hollow glass micropearl and polyvinyl acetate is the mixture of 100:1 ~ 5 by ratio of weight and the number of copies.Polyvinyl chloride is this kind of all poor to light, heat endurance, and the hollow glass micropearl thermal conductivity factor added is low, and heat-proof quality is good, and has high light reflectivity, significantly improves the light of PVC covering cloth, heat endurance, raising heat resisting temperature, improves ageing resistace.Hollow glass micropearl has again the feature of light capacity, and adding hollow glass micropearl can not produce weightening finish to PVC covering cloth.For the ease of the dispersion of hollow glass micropearl, preferably, the particle diameter≤20um of described hollow glass micropearl.The preparation method of described heat-insulating powder can be: dissolved by polyvinyl acetate ethanol, then be that 100:1 ~ 5 add hollow glass micropearl according to hollow glass micropearl and polyvinyl acetate ratio of weight and number, after being uniformly dispersed with high speed dispersion agent, volatilization ethanol, by below powder mull to 600 order that obtains.
Advantage of the present invention and beneficial effect are:
One, the present invention with the addition of vinylpyridine system adhesive and Porous deproteinized bone solvent naphtha in the PVC coating formula of PVC covering cloth, former improve the peel strength between scrim layer and PVC, make scrim layer disperse the stressed of PVC covering cloth better, indirectly improve the tensile strength of PVC covering cloth, latter reduce the consumption of plasticizer, improve the hardness of PVC covering cloth.
Two, fire-resistant composition of the present invention adds in the composition of raw materials of PVC coating with the form of pre-dispersed fire-retardant rubber cement, makes flameproof effect more even, also reduces because of the uneven mechanical deficiencies caused of fire-resistant composition dispersion.Preferred fire retardant is the coated encapsulated antimony sesquioxide powder of neoprene latex.Neoprene latex is coated improves the compatibility that fire retardant is oxidized two antimony and PVC, makes fire retardant be evenly dispersed in resin, and reduce amount of flame-retardant agent, neoprene also helps the toughness improving PVC covering cloth; And neoprene latex is graininess, enhance its mobility, overcome in PVC coating and directly allocate by components such as neoprene latex, antimonous oxide, chlorinated paraffin waxs the roll banding mold sticking easily occurred.
Three, the present invention adds and adds titanium dioxide and uv-resistant agent to improve its ageing resistace in the PVC coating of PVC covering cloth, titanium dioxide can absorb ultraviolet on the one hand, reduce ultraviolet to damage the performance of covering cloth, reduce uv-resistant agent consumption, and then reduce the cost of covering cloth, on the other hand, titanium dioxide covering is high, the penetrance of ultraviolet to covering cloth can be reduced, make covering cloth have stable color, improve ageing resistace.
Four, the present invention increases the light and/or heat that heat-insulating powder can be isolated and/or reflected P VC covering cloth transmits from environment in the PVC coating of PVC covering cloth, improves fast light, the heat endurance of PVC covering cloth.The preferred hollow glass micropearl of heat-insulating powder and polyvinyl acetate are the mixture of 100:1 ~ 5 by ratio of weight and the number of copies, significantly improve the light of PVC covering cloth, heat endurance, raising heat resisting temperature, improve ageing resistace.Hollow glass micropearl has again the feature of light capacity, and adding hollow glass micropearl can not produce weightening finish to PVC covering cloth.And heat-insulating powder is by after the preliminary treatment of polyvinyl acetate ester solution, improves the compatibility of heat-insulating powder and PVC, overcomes heat-insulating powder and add deterioration to PVC covering cloth mechanical property.
Five, PVC covering cloth of the present invention is applicable to laminating manufacture, and technological operation safety is harmless, obtains PVC covering cloth pliability good.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
In following examples, the fire resistance of covering cloth measures according to BS 6853.Mechanical property measures according to HG/T 2580.
The assay method of ageing-resistant performance is: according to ISO4892-3 standard, first sheet product thick for 1mm is cut into dumbbell shape sample, then be placed in Q8/UV3 ultraviolet light accelerated aging test case, ageing time is after 236h, measure TENSILE STRENGTH and the elongation at break of aging rear sample, calculate aging front and back style TENSILE STRENGTH, with the ageing-resistant performance of this exosyndrome material.Experimental condition: UVA-340 ultraviolet lamp tube 40 watts/only, totally 8, fluorescent tube is apart from sample distance 2.5cm; Each simulating natural environment cycle is: radiation temperature 60 DEG C, time 4h, condensation temperature 40 DEG C, time 2h, spray time 5min.
The method that the mensuration of ultraviolet reflectivity and infrared barrier rate adopts is: first products obtained therefrom is cut into 1mm × 100mm × 100mm sheet material, then ultraviolet light and infrared light refract light analyzer is put into, ultraviolet light pipe 15 watts/only, totally 3, the spacing 1.0cm of fluorescent tube, fluorescent tube is apart from sample distance 0.5cm; Infrared light fluorescent tube 150 watts/only, fluorescent tube is apart from sample distance 9.0cm.Measuring the irradiation level at the sample back side and the ratio of plane of illumination irradiation level, is transmitance, 1-transmitance=ultraviolet reflectivity or infrared barrier rate.
Embodiment 1
The present invention is a kind of high-strength PVC covering cloth, be made up of grid cloth double-coated PVC coating, the composition of raw materials of PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 parts, 55 parts, calcium carbonate, chlorinated paraffin wax 6 parts, stabilizing agent 3 parts, Porous deproteinized bone solvent naphtha 3 parts, 1 part, vinylpyridine system adhesive.
Embodiment 2
The present invention is a kind of high-strength PVC covering cloth, be made up of grid cloth double-coated PVC coating, the composition of raw materials of PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 90 parts, 65 parts, calcium carbonate, chlorinated paraffin wax 3 parts, stabilizing agent 6 parts, Porous deproteinized bone solvent naphtha 10 parts, 8 parts, vinylpyridine system adhesive.
Embodiment 3
The present invention is a kind of high-strength PVC covering cloth, be made up of grid cloth double-coated PVC coating, the composition of raw materials of PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 80 parts, 59 parts, calcium carbonate, chlorinated paraffin wax 5 parts, stabilizing agent 4 parts, Porous deproteinized bone solvent naphtha 5 parts, 4 parts, vinylpyridine system adhesive, fire-retardant rubber cement 7 parts.Fire-retardant rubber cement is formed with 7 parts of antimonous oxide mixing making beating by 8 parts of pungent diester in weight, and fire retardant is antimonous oxide.
Embodiment 4
The present invention is a kind of high-strength PVC covering cloth, be made up of grid cloth double-coated PVC coating, the composition of raw materials of PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 80 parts, 60 parts, calcium carbonate, chlorinated paraffin wax 5 parts, stabilizing agent 5 parts, Porous deproteinized bone solvent naphtha 8 parts, 6 parts, vinylpyridine system adhesive, fire-retardant rubber cement 7 parts, anatase thpe white powder 5 parts, uv-resistant agent 0.8 part.Fire-retardant rubber cement is formed with 12 parts of fire retardant mixing making beating by 3 parts of pungent diester in weight.Fire retardant is the coated encapsulated antimony sesquioxide powder of neoprene latex, its preparation method is: by solid content be 35% neoprene latex be 10.5 by 5% sodium hydroxide solution adjust ph, add the mixed solution of tetraethylthiuram disulfide and benzene, carry out chain rupture process 2h; Add antimonous oxide and emulsifying agent by the polychloroprene latex toward chain rupture, after being uniformly dispersed with three roller dispersion machines, being heated to 60 DEG C, and keeping 10min; To add in synthermal 1% flocculating agent aluminum chloride aqueous solution through heat treated latex, stir until all latex adds, slaking 10min; By the condensation product after agglomeration process, dewatering to moisture is about 30%, then spraying dry obtains the≤micelle of 20um, the encapsulated antimony sesquioxide powder that namely neoprene latex is coated.Wherein, polychloroprene latex: tetraethylthiuram disulfide: benzene: emulsifying agent, the flocculating agent aqueous solution: the ratio of weight and number 100:0.5:1.0:1:20:500 of 5% sodium hydrate aqueous solution.
Embodiment 5
The present invention is a kind of high-strength PVC covering cloth, be made up of grid cloth double-coated PVC coating, the composition of raw materials of PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 80 parts, 60 parts, calcium carbonate, chlorinated paraffin wax 5 parts, stabilizing agent 5 parts, Porous deproteinized bone solvent naphtha 10 parts, 8 parts, vinylpyridine system adhesive, fire-retardant rubber cement 15 parts, anatase thpe white powder 8 parts, uv-resistant agent 0.1 part and heat-insulating powder 2 parts.Fire-retardant rubber cement is formed with 10 parts of fire retardant mixing making beating by 5 parts of pungent diester in weight, and fire retardant is the coated encapsulated antimony sesquioxide powder of neoprene latex.Heat-insulating powder is the hollow glass micropearl of particle diameter≤20um and polyvinyl acetate is the mixture of 100:5 by ratio of weight and the number of copies, preparation method is: dissolved by polyvinyl acetate ethanol, be deployed into 5% polyvinyl acetate ester solution, then proportionally hollow glass micropearl is added, after being uniformly dispersed with high speed dispersion agent, volatilization ethanol, by below powder mull to 600 order that obtains.
The preparation method of fire retardant is similar with embodiment 4, and difference is, in chain rupture processing procedure, pH value is 12, and the processing time is 6h; Dispersion process, heating-up temperature to 90 DEG C, the retention time is 30min; Coacervation process, the flocculating agent aqueous solution is heated to 90 DEG C, and the mass fraction of coagulant solution is 0.5%, and the curing time is 30min; Dehydration, moisture is down to 50% spraying dry again.Wherein, polychloroprene latex: tetraethylthiuram disulfide: benzene: emulsifying agent, the flocculating agent aqueous solution: the ratio of weight and number 100:1.5:3.0:5:200:2000 of 5% sodium hydrate aqueous solution.
Embodiment 6
The present invention is a kind of high-strength PVC covering cloth, be made up of grid cloth double-coated PVC coating, the composition of raw materials of PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 80 parts, 59 parts, calcium carbonate, chlorinated paraffin wax 5 parts, stabilizing agent 4 parts, Porous deproteinized bone solvent naphtha 10 parts, 8 parts, vinylpyridine system adhesive, fire-retardant rubber cement 10 parts, anatase thpe white powder 6 parts, uv-resistant agent 0.3 part and heat-insulating powder 20 parts.Fire-retardant rubber cement is formed with 10 parts of fire retardant mixing making beating by 5 parts of pungent diester in weight, and fire retardant is the coated encapsulated antimony sesquioxide powder of neoprene latex.Heat-insulating powder is the hollow glass micropearl of particle diameter≤20um and polyvinyl acetate is the mixture of 100:3 by ratio of weight and the number of copies, preparation method is: dissolved by polyvinyl acetate ethanol, be deployed into 5% polyvinyl acetate ester solution, then proportionally hollow glass micropearl is added, after being uniformly dispersed with high speed dispersion agent, volatilization ethanol, by below powder mull to 600 order that obtains.
The preparation method of fire retardant is similar with embodiment 4, and difference is, in chain rupture processing procedure, pH value is 11.4, and the processing time is 3h; Dispersion process, heating-up temperature to 80 DEG C, the retention time is 20min; Coacervation process, the flocculating agent aqueous solution is heated to 80 DEG C, and the mass fraction of coagulant solution is 0.8%, and the curing time is 20min; Dehydration, moisture is down to 40% spraying dry again.Wherein, polychloroprene latex: tetraethylthiuram disulfide: benzene: emulsifying agent, the flocculating agent aqueous solution: the ratio of weight and number 100:1:2:3:100:1000 of 5% sodium hydrate aqueous solution.
Embodiment 7
The present invention is a kind of high-strength PVC covering cloth, be made up of grid cloth double-coated PVC coating, the composition of raw materials of PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 80 parts, 59 parts, calcium carbonate, chlorinated paraffin wax 5 parts, stabilizing agent 4 parts, Porous deproteinized bone solvent naphtha 10 parts, 8 parts, vinylpyridine system adhesive, fire-retardant rubber cement 15 parts, anatase thpe white powder 6 parts, uv-resistant agent 0.3 part and heat-insulating powder 30 parts.Fire-retardant rubber cement is formed with 10 parts of fire retardant mixing making beating by 5 parts of pungent diester in weight, and fire retardant is the coated encapsulated antimony sesquioxide powder of neoprene latex.Heat-insulating powder is the hollow glass micropearl of particle diameter≤20um and polyvinyl acetate is the mixture of 100:1 by ratio of weight and the number of copies, preparation method is: dissolved by polyvinyl acetate ethanol, be deployed into 5% polyvinyl acetate ester solution, then proportionally hollow glass micropearl is added, after being uniformly dispersed with high speed dispersion agent, volatilization ethanol, by below powder mull to 600 order that obtains.
The preparation method of fire retardant is similar with embodiment 4, and difference is, in chain rupture processing procedure, pH value is 11.4, and the processing time is 3h; Dispersion process, heating-up temperature to 80 DEG C, the retention time is 20min; Coacervation process, the flocculating agent aqueous solution is heated to 80 DEG C, and the mass fraction of coagulant solution is 0.8%, and the curing time is 20min; Dehydration, moisture is down to 40% spraying dry again.Wherein, polychloroprene latex: tetraethylthiuram disulfide: benzene: emulsifying agent, the flocculating agent aqueous solution: the ratio of weight and number 100:1:2:3:100:1000 of 5% sodium hydrate aqueous solution.
In embodiment 1 ~ 7, grid cloth elects polyester filament plain as, and specification is 1000D/18 × 18; Intercide VP selected by vinylpyridine system adhesive; Porous deproteinized bone solvent naphtha selects Exxsol D80, its initial boiling point >=203 DEG C, the end point of distillation≤243 DEG C, flash-point >=80 DEG C.
Comparative example 1
The PVC covering cloth of comparative example 1 is made up of grid cloth double-coated PVC coating, and the composition of raw materials of PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 parts, 55 parts, calcium carbonate, chlorinated paraffin wax 6 parts, stabilizing agent 3 parts, Porous deproteinized bone solvent naphtha 3 parts.
Comparative example 2
The PVC covering cloth of comparative example 2 is made up of grid cloth double-coated PVC coating, and the composition of raw materials of PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 80 parts, 59 parts, calcium carbonate, chlorinated paraffin wax 5 parts, stabilizing agent 4 parts, Porous deproteinized bone solvent naphtha 5 parts, 4 parts, vinylpyridine system adhesive, antimony sesquioxide powder 7 parts.
Comparative example 3
The PVC covering cloth of comparative example 3 is similar to Example 5, and unique difference is that described heat-insulating powder is the hollow glass micropearl without polyvinyl acetate ester solution or other process.
Table 1. the performance test results.
Contrasted as can be seen from embodiment 1,2 and comparative example 1, add the intensity that vinylpyridine system adhesive can improve PVC covering cloth.
Contrasted as can be seen from embodiment 3 ~ 7 and comparative example 1,2, fire-resistant composition adds in the composition of raw materials of PVC coating with the form of pre-dispersed fire-retardant rubber cement, can avoid the deterioration of PVC covering cloth mechanical property.
As can be seen from embodiment 3 ~ 7, the coated encapsulated antimony sesquioxide powder of neoprene latex replaces antimony sesquioxide powder as fire retardant, can reduce amount of flame-retardant agent.
As can be seen from embodiment 4 ~ 7, add titanium dioxide and can replace expensive uv-resistant agent, reach close uvioresistant, counter infrared ray performance.
Contrasted as can be seen from embodiment 5 ~ 7 and comparative example 3, the preliminary treatment of polyvinyl acetate ester solution can improve PVC covering cloth mechanical property, avoids heat-insulating powder to add deterioration to its mechanical property.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a high-strength PVC covering cloth, it is characterized in that, be made up of grid cloth double-coated PVC coating, the composition of raw materials of described PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 ~ 90 parts, 55 ~ 65 parts, calcium carbonate, chlorinated paraffin wax 3 ~ 6 parts, stabilizing agent 3 ~ 6 parts, Porous deproteinized bone solvent naphtha 3 ~ 10 parts, 1 ~ 8 part, vinylpyridine system adhesive, fire-retardant rubber cement 0 ~ 30 part, titanium dioxide 0 ~ 8 part, uv-resistant agent 0 ~ 0.8 part, and heat-insulating powder 0 ~ 30 part, described fire-retardant rubber cement is formed with 7 ~ 12 parts of fire retardant mixing making beating by 3 ~ 8 parts of pungent diester in weight, described fire retardant is the antimony sesquioxide powder through the process of neoprene latex surface.
2. high-strength PVC covering cloth as claimed in claim 1, it is characterized in that, the composition of raw materials of described PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 ~ 90 parts, 55 ~ 65 parts, calcium carbonate, chlorinated paraffin wax 3 ~ 6 parts, stabilizing agent 3 ~ 6 parts, Porous deproteinized bone solvent naphtha 3 ~ 10 parts, 1 ~ 8 part, vinylpyridine system adhesive, fire-retardant rubber cement 7 ~ 30 parts, titanium dioxide 0 ~ 8 part, uv-resistant agent 0 ~ 0.8 part and heat-insulating powder 0 ~ 30 part.
3. high-strength PVC covering cloth as claimed in claim 2, it is characterized in that, the composition of raw materials of described PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 ~ 90 parts, 55 ~ 65 parts, calcium carbonate, chlorinated paraffin wax 3 ~ 6 parts, stabilizing agent 3 ~ 6 parts, Porous deproteinized bone solvent naphtha 3 ~ 10 parts, 1 ~ 8 part, vinylpyridine system adhesive, fire-retardant rubber cement 7 ~ 30 parts, titanium dioxide 3 ~ 8 parts, uv-resistant agent 0.1 ~ 0.8 part and heat-insulating powder 0 ~ 30 part.
4. high-strength PVC covering cloth as claimed in claim 3, it is characterized in that, the composition of raw materials of described PVC coating comprises following component according to parts by weight: PVC paste resin 80 parts, dioctyl phthalate 70 ~ 90 parts, 55 ~ 65 parts, calcium carbonate, chlorinated paraffin wax 3 ~ 6 parts, stabilizing agent 3 ~ 6 parts, Porous deproteinized bone solvent naphtha 3 ~ 10 parts, 1 ~ 8 part, vinylpyridine system adhesive, fire-retardant rubber cement 7 ~ 20 parts, titanium dioxide 3 ~ 8 parts, uv-resistant agent 0.1 ~ 0.8 part and heat-insulating powder 2 ~ 30 parts.
5. the high-strength PVC covering cloth as described in Claims 1-4 any one, is characterized in that, initial boiling point >=203 DEG C of described Porous deproteinized bone solvent naphtha, the end point of distillation≤243 DEG C, flash-point >=80 DEG C.
6. the high-strength PVC covering cloth as described in Claims 1-4 any one, is characterized in that, described titanium dioxide is anatase thpe white powder.
7. the high-strength PVC covering cloth as described in Claims 1-4 any one, is characterized in that, described heat-insulating powder is hollow glass micropearl and polyvinyl acetate is the mixture of 100:1 ~ 5 by ratio of weight and the number of copies.
8. high-strength PVC covering cloth as claimed in claim 7, is characterized in that, the particle diameter≤20um of described hollow glass micropearl.
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