CN104742472A - Anti-corrosion PVC sectional material for bottom plate of tray and treatment process of anti-corrosion PVC sectional material for bottom plate of tray - Google Patents
Anti-corrosion PVC sectional material for bottom plate of tray and treatment process of anti-corrosion PVC sectional material for bottom plate of tray Download PDFInfo
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- CN104742472A CN104742472A CN201510123252.8A CN201510123252A CN104742472A CN 104742472 A CN104742472 A CN 104742472A CN 201510123252 A CN201510123252 A CN 201510123252A CN 104742472 A CN104742472 A CN 104742472A
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Abstract
The invention discloses an anti-corrosion PVC sectional material for a bottom plate of a tray and a treatment process of the anti-corrosion PVC sectional material for the bottom plate of the tray. The anti-corrosion PVC sectional material is prepared from 91.5-92.1% of a PVC base material and 7.5-9.5% of a heat-resistant modifier, wherein the PVC base material is prepared from the following components in parts by weight: 75-82 parts of polyvinyl chloride, 1-4 parts of an antioxidant, 11-15 parts of a fire retardant, 2-6 parts of a heat stabilizer, 6-8 parts of epoxidized soybean oil, 0.5-1 part of stearic acid and 0.5-1 part of an organic tin stabilizer; the heat-resistant modifier is prepared from the following components in parts by weight: 16-22 parts of tetraethyl orthosilicate, 35-50 parts of heat-resistant pigment filler, 2-4 parts of an assistant, 13-18 parts of dimethylformamide, 50 parts of thermoset phenolic resin, 17-25 parts of styrene, 5 parts of methyl methacrylate, 2-5 parts of N-phenyl maleamic acid and 1-2 parts of an initiator. According to the anti-corrosion PVC sectional material for the bottom plate of the tray and the treatment process of the anti-corrosion PVC sectional material for the bottom plate of the tray, adhesive force of the heat insulation material of the bed plate is improved greatly, the cracking phenomenon of the bed plate after long-term use is effectively reduced, the PVC sectional material has high heat resisting and preserving properties, and the corrosion resistance of the PVC sectional material is improved.
Description
Technical field
The invention belongs to the manufacture field of PVC profile, particularly a kind of tray substrate corrosion-resistant PVC profile and treatment process thereof.
Background technology
PVC plastic profile shapes is developed so far, and has been a very ripe product, and product category comprises the outdoor goods such as PVC plastic door and window profile material, PVC exterior wall cladding, PVC synthetic resin watt and PVC guardrail.PVC plastic has the advantages such as good rigidly, intensity is high, fire-retardant, electrical insulating property is good, but, because the heat resistance poor corrosion resistance of PVC, cannot use at relatively high temperatures, have impact on the application of PVC profile to a great extent.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, a kind of tray substrate corrosion-resistant PVC profile and treatment process thereof are provided, compared with prior art, substantially increase the adhesive force of the heat-barrier material of tray substrate, effectively reduce the problem of Cracking that tray substrate Long-Time Service causes, while there is high-intensity high-tenacity, improve the corrosion resistance in use.
In order to solve above technical problem, the invention provides the corrosion-resistant PVC profile of a kind of tray substrate, comprising PVC base and heat-proof modifier, the content of described PVC base is 91.5-92.1%, and the content of described heat-proof modifier is 7.5-9.5%, wherein:
The each components in mass portion number of described PVC base is counted: polyvinyl chloride 75-82 part, antioxidant 1-4 part, fire retardant 11-15 part, heat stabilizer 2-6 part, epoxidized soybean oil 6-8 part, stearic acid 0.5-1 part, organic tin stabilizer: 0.5-1 part;
The each components in mass portion number of described heat-proof modifier is counted: tetraethoxysilance 16-22 part; Heat-resisting color stuffing 35-50 part; Auxiliary agent 2-4 part; Dimethyl formamide 13-18 part; Thermosetting phenolic resin 50 parts; Styrene 17-25 part; Methyl methacrylate 5 parts; N-phenyl maleimide 2-5 part; Initator 1-2 part;
Described heat-resisting color stuffing comprises: nano montmorillonite class silicate and isolation-type functional stuffing, and both mass ratioes are 1:1.5; Described isolation-type functional stuffing comprises following component according to the mass fraction: hollow glass micropearl: 2-6 part, graphite: 10-15 part, black silicon carbide: 20-35 part, fine-grained alumina: 25-30 part, talcum powder: 3-6 part; Described auxiliary agent is for comprise following component according to the mass fraction: dispersant: 10-15 part, wetting agent: 2-6 part, curing agent 20-50 part, delustering agent: 2-6 part, coalescents: 5-10 part, thickener: 5-10 part, hydroxyethylcellulose: 5-10 part, pH adjusting agent: 1-5 part, auxiliary material: 1-3 part; Defoamer: 2-4 part; Also comprise silane coupler in auxiliary agent, the mass ratio of its quality and tetraethoxysilance is 1:15; Described auxiliary material is compound rare-earth, and described compound rare-earth comprises following composition by weight percentage: Sc:16-18%, Gd:10-11%, Sm:18-20%, Pr:9-11%, and surplus is La, and above each component sum is 100%;
Wherein, described dispersant is the one in sodium phosphate trimer, sodium tetrapolyphosphate or calgon; Described coalescents is the one in ethylene glycol ethyl ether, butyl glycol ether, ethylene glycol or propane diols; Described defoamer is one or more in organosilicon, polyethers, organosiloxane or acid amides; Described fire retardant is antimony oxide or phosphotriester; Described organic tin stabilizer is octyl mercaptan tin or Methyl stannum mercaptide.
The invention has the beneficial effects as follows: in base material of the present invention, use chlorinated vinyl chloride, and the heat-proof modifier adopting thermosetting phenolic resin to synthesize, processability is good, and the porosity is low, and good heat resistance, acid resistance is strong; The performance of heat-proof modifier is good, and consumption is few, and meanwhile, synthetic material is all conventional material, easily obtains, and cost is low;
In technique scheme, high-temperature resistant coating is prepared owing to utilizing ethyl orthosilicate, this coating is inoranic membrane after heat cure, along with the rising of temperature, adhesive force and the hardness of cured film significantly improve, and adhesive force reaches 1 grade, pencil hardness is greater than 6H, make the temperature that coating ability is higher, meanwhile, the use of dimethyl formamide and coupling agent all can reduce film cracking and be inclined to;
Ethyl orthosilicate can reduce coating cracking tendency greatly, add dimethyl formamide in ethyl orthosilicate after, on the one hand, colloidal sol is in gel conversion process, dimethyl formamide is combined with hydrolyzing intermediate by hydrogen bond, inhibit the chemism of hydrolyzing intermediate Si (OC2H5) 4-x (OH) x and product S ixOy (OH) z, reduce sol-hydrolysis, the reaction rate of polycondensation, to facilitate between particle this is cross-linked with each other, form orderly network structure, improve gel structure, make again gel particle increase simultaneously, mesoporous pore size and pore volume increase, dry rear gel shrinks amount is caused to diminish, obtain the uniform gel of size distribution, thus during solvent evaporation, gel uniform internal stress,
Molybdenum bisuphide, graphite, talcum powder is adopted in isolation-type functional stuffing, graphite material makes it easily produce slippage due to distinctive crystal structure, graphite dry friction lubricant has adsorptivity simultaneously, one deck lubricating film (graphite crystal film) can be formed, play the effect reducing fretting wear, there is good thermal diffusivity and thermal conductivity, because the fusing point of carbon is very high, therefore can not produce carbon and metal material sting weldering phenomenon; Talcum powder, as filler, can play skeleton function, reduces the hardness of paint film that manufacturing cost improves coating simultaneously, increase the stable of shape of product, increase tensile strength, shear strength, flexing intensity, the intensity of pressure, reduce distortion, extension rate, thermal coefficient of expansion, whiteness is high, the dispersed feature such as by force of epigranular, makes that the ductility of coating and machinability etc. are excellent to be optimized;
Graphite and molybdenum bisuphide are mixed use, graphite and molybdenum bisuphide have good cooperative effect, both are the anti-wear performance that effectively can improve coating used in combination in certain proportion, reduce wear weight loss and coefficient of friction, in coating, add a certain amount of antimony oxide simultaneously, effectively can strengthen the hardness of paint coatings, and improve the wearability of coating;
Hollow glass micropearl is the inorganic material of a kind of excellent chemical proof and ageing resistance, thickness is generally 2-5 μm, and platelet length is 100-300 μm; Hollow glass micropearl can be divided into many little spaces coating, make the micro-crack in coating, microbubble splits mutually, inhibit capillary infiltration, this greatly increases adhesive force and the shock resistance of coating simultaneously, the defect such as inhibit coating to chap, to peel off.
The technical scheme that the present invention limits further is:
Further, the corrosion-resistant PVC profile of aforesaid tray substrate, described Corvic is SG-5 type resin.
The corrosion-resistant PVC profile of aforesaid tray substrate, the chlorinty of described chlorinated polyvinyl chloride resin is 60%.
A tray substrate treatment process for corrosion-resistant PVC profile, comprises following concrete steps:
A: heat-proof modifier and water are allocated according to mass ratio 1:3, stir 15-35min, mixing speed is 150-180 r/min;
B: with behind sand paper trickle polishing PVC base surface, utilizes the mixture in steps A to carry out first time coating to it, when its substrate surface moisture content is less than or equal to 8%, carries out second time coating, namely completes the process of heat insulation corrosion resistant type rack baffle PVC profile.When applying, coated tool and PVC base keep 25-30 degree gradient, firmly evenly; Coating thickness in twice coating processes is 0.4-0.6mm.
Detailed description of the invention
embodiment 1
The corrosion-resistant PVC profile of a kind of tray substrate that the present embodiment provides, comprises PVC base and heat-proof modifier, and the content of described PVC base is 91.5%, and the content of described heat-proof modifier is 8.5%, wherein:
The each components in mass portion number of described PVC base is counted: SG-5 type resin 75 parts, 1 part, antioxidant, antimony oxide 11 parts, heat stabilizer 2 parts, epoxidized soybean oil 6 parts, stearic acid 0.5 part, octyl mercaptan tin: 0.5 part;
The each components in mass portion number of described heat-proof modifier is counted: tetraethoxysilance 16 parts; Heat-resisting color stuffing 35 parts; Auxiliary agent 2 parts; Dimethyl formamide 13 parts; Thermosetting phenolic resin 50 parts; Styrene 17 parts; Methyl methacrylate 5 parts; N-phenyl maleimide 2 parts; Initator 1 part;
Described heat-resisting color stuffing comprises: nano montmorillonite class silicate and isolation-type functional stuffing, and both mass ratioes are 1:1.5; Described isolation-type functional stuffing comprises following component according to the mass fraction: hollow glass micropearl: 2 parts, graphite: 10 parts, black silicon carbide: 20 parts, fine-grained alumina: 25 parts, talcum powder: 3 parts; Described auxiliary agent is for comprise following component according to the mass fraction: sodium phosphate trimer: 10 parts, wetting agent: 2 parts, 20 parts, curing agent, delustering agent: 2 parts, ethylene glycol ethyl ether: 5 parts, thickener: 5 parts, hydroxyethylcellulose: 5 parts, pH adjusting agent: 1 part, auxiliary material: 1 part; Defoamer: 2 parts; Also comprise silane coupler in auxiliary agent, the mass ratio of its quality and tetraethoxysilance is 1; Described auxiliary material is compound rare-earth, and described compound rare-earth comprises following composition by weight percentage: Sc:16%, Gd:10%, Sm:18%, Pr:9%, and surplus is La, and above each component sum is 100%.
The present invention have also been devised the treatment process of a kind of tray substrate by corrosion-resistant PVC profile, comprises following concrete steps:
A: heat-proof modifier and water are allocated according to mass ratio 1:3, stir 15min, mixing speed is 180 r/min;
B: with behind sand paper trickle polishing PVC base surface, utilizes the mixture in steps A to carry out first time coating to it, when its substrate surface moisture content is less than or equal to 8%, carries out second time coating, namely completes the process of heat insulation corrosion resistant type rack baffle PVC profile.When applying, coated tool and PVC base keep 25 degree of gradients, firmly evenly; Coating thickness in twice coating processes is 0.4mm.
embodiment 2
The corrosion-resistant PVC profile of a kind of tray substrate that the present embodiment provides, comprises PVC base and heat-proof modifier, and the content of described PVC base is 92.1%, and the content of described heat-proof modifier is 7.9%, wherein:
The each components in mass portion number of described PVC base is counted: SG-5 type resin 82 parts, 4 parts, antioxidant, antimony oxide 15 parts, heat stabilizer 6 parts, epoxidized soybean oil 8 parts, stearic acid 1 part, octyl mercaptan tin: 1 part;
The each components in mass portion number of described heat-proof modifier is counted: tetraethoxysilance 16-22 part; Heat-resisting color stuffing 35-50 part; Auxiliary agent 4 parts; Dimethyl formamide 18 parts; Thermosetting phenolic resin 50 parts; Styrene 25 parts; Methyl methacrylate 5 parts; N-phenyl maleimide 5 parts; Initator 2 parts;
Described heat-resisting color stuffing comprises: nano montmorillonite class silicate and isolation-type functional stuffing, and both mass ratioes are 1:1.5; Described isolation-type functional stuffing comprises following component according to the mass fraction: hollow glass micropearl: 6 parts, graphite: 15 parts, black silicon carbide: 35 parts, fine-grained alumina: 30 parts, talcum powder: 6 parts; Described auxiliary agent is for comprise following component according to the mass fraction: sodium phosphate trimer: 15 parts, wetting agent: 6 parts, curing agent: 50 parts, delustering agent: 6 parts, ethylene glycol ethyl ether: 10 parts, thickener: 10 parts, hydroxyethylcellulose: 10 parts, pH adjusting agent: 5 parts, auxiliary material: 3 parts; Defoamer: 4 parts; Also comprise silane coupler in auxiliary agent, the mass ratio of its quality and tetraethoxysilance is 1:15; Described auxiliary material is compound rare-earth, and described compound rare-earth comprises following composition by weight percentage: Sc:18%, Gd:11%, Sm:20%, Pr:11%, and surplus is La, and above each component sum is 100%.
The present invention have also been devised the treatment process of a kind of tray substrate by corrosion-resistant PVC profile, comprises following concrete steps:
A: heat-proof modifier and water are allocated according to mass ratio 1:3, stir 35min, mixing speed is 150 r/min;
B: with behind sand paper trickle polishing PVC base surface, utilizes the mixture in steps A to carry out first time coating to it, when its substrate surface moisture content is less than or equal to 8%, carries out second time coating, namely completes the process of heat insulation corrosion resistant type rack baffle PVC profile.When applying, coated tool and PVC base keep 30 degree of gradients, firmly evenly; Coating thickness in twice coating processes is 0.6mm.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (6)
1. the corrosion-resistant PVC profile of tray substrate, comprises PVC base and heat-proof modifier, it is characterized in that, the content of described PVC base is 91.5-92.1%, and the content of described heat-proof modifier is 7.5-9.5%, wherein:
The each components in mass portion number of described PVC base is counted: polyvinyl chloride 75-82 part, antioxidant 1-4 part, fire retardant 11-15 part, heat stabilizer 2-6 part, epoxidized soybean oil 6-8 part, stearic acid 0.5-1 part, organic tin stabilizer: 0.5-1 part;
The each components in mass portion number of described heat-proof modifier is counted: tetraethoxysilance 16-22 part; Heat-resisting color stuffing 35-50 part; Auxiliary agent 2-4 part; Dimethyl formamide 13-18 part; Thermosetting phenolic resin 50 parts; Styrene 17-25 part; Methyl methacrylate 5 parts; N-phenyl maleimide 2-5 part; Initator 1-2 part;
Described heat-resisting color stuffing comprises: nano montmorillonite class silicate and isolation-type functional stuffing, and both mass ratioes are 1:1.5; Described isolation-type functional stuffing comprises following component according to the mass fraction: hollow glass micropearl: 2-6 part, graphite: 10-15 part, black silicon carbide: 20-35 part, fine-grained alumina: 25-30 part, talcum powder: 3-6 part; Described auxiliary agent is for comprise following component according to the mass fraction: dispersant: 10-15 part, wetting agent: 2-6 part, curing agent 20-50 part, delustering agent: 2-6 part, coalescents: 5-10 part, thickener: 5-10 part, hydroxyethylcellulose: 5-10 part, pH adjusting agent: 1-5 part, auxiliary material: 1-3 part; Defoamer: 2-4 part; Also comprise silane coupler in auxiliary agent, the mass ratio of its quality and tetraethoxysilance is 1:15; Described auxiliary material is compound rare-earth, and described compound rare-earth comprises following composition by weight percentage: Sc:16-18%, Gd:10-11%, Sm:18-20%, Pr:9-11%, and surplus is La, and above each component sum is 100%;
Wherein, described dispersant is the one in sodium phosphate trimer, sodium tetrapolyphosphate or calgon; Described coalescents is the one in ethylene glycol ethyl ether, butyl glycol ether, ethylene glycol or propane diols; Described defoamer is one or more in organosilicon, polyethers, organosiloxane or acid amides; Described fire retardant is antimony oxide or phosphotriester; Described organic tin stabilizer is octyl mercaptan tin or Methyl stannum mercaptide.
2. the corrosion-resistant PVC profile of tray substrate according to claim 1, is characterized in that, described Corvic is SG-5 type resin.
3. the corrosion-resistant PVC profile of tray substrate according to claim 1, is characterized in that, the chlorinty of described chlorinated polyvinyl chloride resin is 60%.
4. according to the treatment process of the tray substrate in claims 1 to 3 described in any one claim by corrosion-resistant PVC profile, it is characterized in that, comprise following concrete steps:
A: heat-proof modifier and water are allocated according to mass ratio 1:3, stir 15-35min, mixing speed is 150-180 r/min;
B: with behind sand paper trickle polishing PVC base surface, utilizes the mixture in steps A to carry out first time coating to it, when its substrate surface moisture content is less than or equal to 8%, carries out second time coating, namely completes the process of heat insulation corrosion resistant type rack baffle PVC profile.
5. the tray substrate according to claim 4 treatment process of corrosion-resistant PVC profile, is characterized in that, during coating, coated tool and PVC base keep 25-30 degree gradient, firmly evenly.
6. the tray substrate according to claim 4 treatment process of corrosion-resistant PVC profile, is characterized in that, the coating thickness in twice coating processes is 0.4-0.6mm.
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| CN201510123252.8A CN104742472A (en) | 2015-03-20 | 2015-03-20 | Anti-corrosion PVC sectional material for bottom plate of tray and treatment process of anti-corrosion PVC sectional material for bottom plate of tray |
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| CN201510123252.8A CN104742472A (en) | 2015-03-20 | 2015-03-20 | Anti-corrosion PVC sectional material for bottom plate of tray and treatment process of anti-corrosion PVC sectional material for bottom plate of tray |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634230A (en) * | 2016-12-22 | 2017-05-10 | 苏州劲元油压机械有限公司 | Strong-acid-resistant antioxidative plastic and preparation method thereof |
| CN107641266A (en) * | 2017-09-30 | 2018-01-30 | 镇江市星耀智能装备有限公司 | A kind of PVC composite wood-plastics sheet material |
| CN111070606A (en) * | 2019-12-27 | 2020-04-28 | 苏州耐思特塑胶有限公司 | Processing technology of electronic instrument plastic cover plate |
| CN113388213A (en) * | 2021-06-16 | 2021-09-14 | 东营瑞致新材料有限公司 | Polyvinyl chloride foam and preparation method thereof |
| CN116376373A (en) * | 2023-03-30 | 2023-07-04 | 濮阳展辰新材料有限公司 | High-adhesion nitro white primer and preparation method and application thereof |
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2015
- 2015-03-20 CN CN201510123252.8A patent/CN104742472A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634230A (en) * | 2016-12-22 | 2017-05-10 | 苏州劲元油压机械有限公司 | Strong-acid-resistant antioxidative plastic and preparation method thereof |
| CN107641266A (en) * | 2017-09-30 | 2018-01-30 | 镇江市星耀智能装备有限公司 | A kind of PVC composite wood-plastics sheet material |
| CN111070606A (en) * | 2019-12-27 | 2020-04-28 | 苏州耐思特塑胶有限公司 | Processing technology of electronic instrument plastic cover plate |
| CN113388213A (en) * | 2021-06-16 | 2021-09-14 | 东营瑞致新材料有限公司 | Polyvinyl chloride foam and preparation method thereof |
| CN116376373A (en) * | 2023-03-30 | 2023-07-04 | 濮阳展辰新材料有限公司 | High-adhesion nitro white primer and preparation method and application thereof |
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Application publication date: 20150701 |