CN105419169A - Mildew-resistant PVC modified material and preparation method therefor - Google Patents
Mildew-resistant PVC modified material and preparation method therefor Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
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Abstract
The invention relates to the PVC material technology field, and concretely relates to a mildew-resistant PVC modified material and a preparation method therefor. The mildew-resistant PVC modified material comprises the following raw materials, by weight, 80-120 parts of PVC resin, 50-70 parts of plasticizer, 20-30 parts of filler, 3-7 parts of heat stabilizer, 1-3 parts of mildew inhibitor, 0.6-1.0 part of synergistic agent and 0.2-0.6 part of lubricant. The above raw materials are employed, the weight ratios of the raw materials are controlled strictly, various performances of the prepared mildew-resistant PVC modified material exceed national standards, and the provided modified material is advantaged by good mildew-resistant effects, environmental protection, excellent temperature resistance, excellent weather resistance, high intensity, excellent shock resistance, good flame retardation effects, excellent processing property and excellent comprehensive properties.
Description
Technical field
The present invention relates to PVC material technical field, it is material modified and preparation method thereof to be specifically related to a kind of mildew-resistant PVC.
Background technology
The advantages such as polyvinyl chloride (PVC) is one of industrialization the earliest, broad-spectrum general-purpose thermoplastic plastic, and it has, and quality is light, intensity is high, insulation, fire-retardant, corrosion-resistant, high comprehensive performance, cheap and raw material sources are extensive; But also there is following shortcoming: 1, poor toughness, very easily embrittlement when being hit, therefore can not be used as structured material, in addition, the fragility temperature influence of polyvinyl chloride is very large, and general PVC product uses lower limit to be-15 DEG C, and the use lower limit of flexible PVC is-30 DEG C; 2, poor heat stability, it just starts to decomposite HCl 100 DEG C time, more rapid higher than decomposing when 150 DEG C, and the melt temperature of PVC is about 210 DEG C; 3, the viscosity of PVC is high, mobility extreme difference, limits it to a certain extent and uses.People often adopt methods such as adding filler, elastomerics, softening agent, thermo-stabilizer, processing aid, heat-proof modifier and flow ability modifying agent to improve the performance of PVC.
Application number is 200710156381.2 disclose a kind of low-temperature resistant flexile PVC modified material and preparation method thereof, it is characterized in that: according to weight percent meter, it forms by the auxiliary agent of polyvinyl chloride 36 ~ 52%, chloride graft polyacrylic ester 11 ~ 20%, urethane 7.5 ~ 17% and surplus is blended.
Application number is 200810016526.3 making methods disclosing a kind of PVC conveyor belt material, it is characterized in that this material is fully mixed by slurry and tackiness agent.Described slurry is made up of following raw material: stick with paste resin: 900 ~ 1000 weight parts, disalt: 10 ~ 20 weight parts, three salt: 15 ~ 25 weight parts, antimonous oxide: 90 ~ 130 weight parts, zinc borate: 50 ~ 70 weight parts, TCEP:180 ~ 200 weight part, DOP:280 ~ 330 weight part, paraffin: 150 ~ 200 weight parts, carbon black: 3 ~ 5 weight parts, described tackiness agent is made up of following raw material: Resorcinol: 10 ~ 20 weight parts, urotropine: 5 ~ 10 weight parts.
Above-mentioned existing PVC material fungicidal properties is poor, still reliably can not meet the demand of life-time service under wet condition, therefore, researches and develops a kind of mildew-resistant PVC material and seems particularly necessary.
Summary of the invention
In order to overcome the shortcoming and defect existed in prior art, the object of the present invention is to provide a kind of mildew-resistant PVC material modified, this material modified anti-mold effect is good, environmental protection, and resistance to gentle weather resistance is excellent, intensity is high, excellent shock resistance, good flame retardation effect, processing characteristics is excellent, excellent combination property.
Another object of the present invention is to the preparation method providing a kind of mildew-resistant PVC material modified, this preparation method's technique is simple, and convenient operation and control, steady quality, production efficiency is high, and production cost is low, can large-scale industrial production.
Object of the present invention is achieved through the following technical solutions: a kind of mildew-resistant PVC is material modified, the material modified raw material comprising following weight part of described mildew-resistant PVC:
Polyvinyl chloride resin 80-120 part
Softening agent 50-70 part
Weighting agent 20-30 part
Thermo-stabilizer 3-7 part
Mould inhibitor 1-3 part
Synergist 0.6-1.0 part
Lubricant 0.2-0.6 part.
Mildew-resistant PVC of the present invention is material modified by adopting above-mentioned raw materials, and the strict weight proportion controlling each raw material, the material modified properties of obtained mildew-resistant PVC is all beyond national standard, and anti-mold effect is good, environmental protection, and resistance to gentle weather resistance is excellent, intensity is high, excellent shock resistance, good flame retardation effect, processing characteristics is excellent, excellent combination property.
Preferably, the mixture that is made up of with weight ratio 2-4:1 calcium carbide process PVC resin and ethylene process polyvinyl chloride resin of described polyvinyl chloride resin.
The present invention is by adopting calcium carbide process PVC resin and ethylene process polyvinyl chloride resin as the composite use of polyvinyl chloride resin, and to control its weight ratio be 2-4:1, makes plasticize speed fast, easily processes.
Preferably, described softening agent is the mixture be made up of with weight ratio 1.5-2.5:0.8-1.2:1 hexanaphthene 1,2-dioctyl phthalate diisononyl esters, triethyl citrate and epoxy soybean oil.
The present invention adopts 1,2-dioctyl phthalate diisononyl esters, triethyl citrate and epoxy soybean oil are as the composite use of softening agent, and to control its weight ratio be 1.5-2.5:0.8-1.2:1, three kinds of softening agent are environment-friendly plasticizer, the reactive force between PVC molecular chain can be reduced, the fusing point of the second-order transition temperature of PVC plastic, yield temperature and contained crystallite is all reduced, improves the plasticity-of resin, make goods softness, resistance to low temperature good.
Preferably, the mixture that is made up of with weight ratio 0.8-1.2:1 water-ground limestone and light calcium carbonate of described weighting agent.
The present invention is by adopting water-ground limestone and light calcium carbonate as the composite use of weighting agent, and to control its weight ratio be 0.8-1.2:1, good with the consistency of polyvinyl chloride resin, thus improves intensity and the shock resistance of material.
Preferably, the mixture that is made up of with weight ratio 0.8-1.2:1 Ca-Zn composite heat stabilizer and hydrotalcite thermal stabilizer of described thermo-stabilizer.
Ca-Zn composite heat stabilizer not only can replace the poisonous stablizers such as plumbous cadmium salt class and organic tin, and has goodish thermostability, light stability and the transparency and tinting strength.Facts have proved, in polyvinyl chloride resin goods, good processability, heat stabilization is equivalent to lead salt stabilizer, is a kind of good non-toxic stabilizer.
Hydrotalcite stablizer has high thermal stability: distinctive sour absorption mechanism, result in its thermostability of thermostability higher than lead base; High transparent: have identical specific refractory power with PVC; High-insulativity: by anion exchange reaction, absorbed muriate can not discharge, and insulativity is splendid; High security: hydrotalcite can be applicable in the food pack of polymer materials; Good weathering resistance (environmental compatibility is strong), can not produce sulfide staining: can with various thermo-stabilizer with the use of.
The present invention is by adopting Ca-Zn composite heat stabilizer and hydrotalcite thermal stabilizer as the composite use of thermo-stabilizer, and to control its weight ratio be 0.8-1.2:1, can make material in the course of processing, have good dispersiveness, consistency and processing fluidity, make material good heat stability, there is efficient weathering resistance.
The mixture that described Ca-Zn composite heat stabilizer is made up of with weight ratio 0.5-1.5:1:0.5-1.5:0.8-1.2 calcium stearate, ricinolic acid calcium, Zinic stearas and zinc ricinate.
The present invention is by adopting calcium stearate, ricinolic acid calcium, Zinic stearas and zinc ricinate as Ca-Zn composite heat stabilizer, and to control its weight ratio be 0.5-1.5:1:0.5-1.5:0.8-1.2, there is goodish thermostability, light stability and the transparency and tinting strength, and good processability.
Preferably, described mould inhibitor is 10, the mixture that the two phenoxazine arsenic of 10 '-oxo and diethyl-2,3-epoxypropyl-[3-(methyl dimethoxy oxygen base)] silicon propyl ammonium chloride form with weight ratio 1.4-2.2:1.
The present invention is by employing 10, and the two phenoxazine arsenic of 10 '-oxo and diethyl-2,3-epoxypropyl-[3-(methyl dimethoxy oxygen base)] silicon propyl ammonium chloride is as mould inhibitor, obtained material anti-mold effect is good.
Preferably, the mixture that is made up of with weight ratio 0.5-1.5:1 antimonous oxide and zinc borate of described synergist.
The present invention is by adopting antimonous oxide and zinc borate as the composite use of synergist, and to control its weight ratio be 0.5-1.5:1, material can be made to reach good flame retardant effect, can also improve Drawing abillity and mechanical property.
Preferably, described lubricant is molecular weight at 3000-5000, fusing point at the polyethylene wax of 100-120 DEG C.
The present invention adopts molecular weight as lubricant, can make material in the course of processing, improve the mobility of material and the release property of goods at the polyethylene wax of 100-120 DEG C at 3000-5000, fusing point.
Preferably, described mildew-resistant PVC is material modified also comprises impact modifier 5-10 part, and described impact modifier is the mixture that the chlorinatedpolyethylene of 25%-45% and the ethylene-vinyl acetate copolymer of vinyl acetate between to for plastic unit content 5%-25% form with weight ratio 1.5-2.5:1 by chlorinity.
Chlorinatedpolyethylene (CPE) is a kind of properties-correcting agent of thermoplastics, has good over-all properties.Appropriate CPE is added, the processing characteristics that can reduce the melt viscosity of resin, improve mobility, improve plastics in polyvinyl chloride (PVC) resin; The work-ing life of the shock strength of PVC, resistance to low temperature, weathering performance, prolongation goods can also be improved.CPE also contributes to the dispersed of calcium carbonate and polyvinyl chloride resin; And when the chlorinity (weight content) of chlorinatedpolyethylene is for 25%-45%, make the resistance to impact shock of material best.
Ethylene-vinyl acetate copolymer (EVA) can be used as the impact modifying agent of PVC, has good flexibility, obdurability, lower temperature resistance (-58 DEG C still have pliability), weathering resistance, stress cracking resistance, heat sealer, agglutinating value(of coal), the transparency and glossiness; Also there is the elasticity as rubber simultaneously, excellent chemical stability, thermostability (heat decomposition temperature 229 ~ 230 DEG C), ozone resistance, nontoxicity, good processibility and dyeability; Fine with the miscibility of filler, even if fill more filler, also unlikelyly have a strong impact on its physical and mechanical property.
EVA is as the impact modifying agent of PVC, its effect is different with the content of vinyl acetate between to for plastic in multipolymer, when the content of vinyl acetate between to for plastic is low, with the poor compatibility of PVC, reinforced effects is poor, and goods are opaque, along with the increase of vinyl acetate between to for plastic unit content, the consistency of multipolymer and PVC improves, and reinforced effects improves, and the goods transparency is also better; But the content of vinyl acetate between to for plastic also can not be too high, during vinyl acetate between to for plastic unit content 5%-25%, obviously can improve the shock strength of PVC, compared with the impact modifying agent containing carbon-carbon double bond, also there is the good advantage of ageing resistance.
The present invention is by adopting chlorinatedpolyethylene and ethylene-vinyl acetate copolymer as the composite use of impact modifier, and to control its weight ratio be 1.5-2.5:1, the high temperature resistant of material and resistance to low temperature can be improved, the processing characteristics that can also reduce the melt viscosity of material, improve mobility, improve plastics, improves the work-ing life of the shock strength of material, weathering performance, prolongation goods.
Described mildew-resistant PVC is material modified also comprises fire retardant 1-5 part, slipping agent 0.05-0.15 part and pigment powder 0.01-0.05 part; The mixture that described fire retardant is made up of with weight ratio 0.5-1.5:1 antimonous oxide and zinc borate.
Antimonous oxide and lime borate are inorganic environment-friendly fire retardant, the present invention is by adopting antimonous oxide and zinc borate as the composite use of fire retardant, and to control its weight ratio be 0.5-1.5:1, good flame retardant effect can be reached, Drawing abillity and mechanical property can also be improved.
Described slipping agent is the mixture be made up of with weight ratio 1.5-2.5:0.8-1.2:1 erucicamide, amine hydroxybenzene and N, N'-ethylene bis stearamide.
The present invention is by adopting erucicamide, amine hydroxybenzene and N, N'-ethylene bis stearamide is as slipping agent and to control its weight ratio be 1.5-2.5:0.8-1.2:1, mechanical resistant stirring capacity and fingerprinting stress can be strengthened, finished product good forming effect, any surface finish, the extensibility of finished product can also be strengthened, easy-to-draw not easily broken.
Described pigment powder is particle diameter at the titanium dioxide of 1-5 μm; The mixture that described titanium dioxide is made up of with weight ratio 1:1.5-2.5 Rutile type Titanium Dioxide and anatase thpe white powder.
The present invention adopts particle diameter at the titanium dioxide of 1-5 μm as pigment powder, further employing Rutile type Titanium Dioxide and the composite use of anatase thpe white powder, and to control its weight ratio be 1:1.5-2.5, there is superior whiteness, tinting strength, opacifying power, weathering resistance, thermotolerance and chemical stability, particularly there is no toxicity.
Another object of the present invention is achieved through the following technical solutions: the preparation method that a kind of mildew-resistant PVC is material modified, comprises the steps:
(1) take above-mentioned raw materials mixing by weight ratio, put into high speed blender, at 100-140 DEG C of temperature, stir 15-25min;
(2) raw material after stirring is passed through twin screw extruder extruding pelletization, obtained mildew-resistant PVC is material modified.
Preparation method's technique of the present invention is simple, and convenient operation and control, steady quality, production efficiency is high, and production cost is low, can large-scale industrial production.
Preferably, in described step (2), the extruder temperature of twin screw extruder is: a district temperature 138-160 DEG C, two district temperature 135-160 DEG C, three district temperature 135-155 DEG C, four district temperature 132-150 DEG CHe five district temperature 130-148 DEG C.
Beneficial effect of the present invention is: the material modified properties of mildew-resistant PVC of the present invention is all beyond national standard, and anti-mold effect is good, environmental protection, and resistance to gentle weather resistance is excellent, intensity is high, excellent shock resistance, good flame retardation effect, processing characteristics is excellent, excellent combination property.Mildew-resistant PVC of the present invention is material modified meets the International Environmental Protection standards such as REACH, ROHS, PAHS, N-P, can be widely used in the industrial circles such as automobile, electronic apparatus, instrument, weaving and building.
Another object of the present invention is to the preparation method providing a kind of mildew-resistant PVC material modified, this preparation method's technique is simple, and convenient operation and control, steady quality, production efficiency is high, and production cost is low, can large-scale industrial production.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment, the present invention is further illustrated, and the content that embodiment is mentioned not is limitation of the invention.
Embodiment 1
A kind of mildew-resistant PVC is material modified, the material modified raw material comprising following weight part of described mildew-resistant PVC:
Polyvinyl chloride resin 80 parts
50 parts, softening agent
Weighting agent 20 parts
Thermo-stabilizer 3 parts
Mould inhibitor 1 part
Synergist 0.6 part
Lubricant 0.2 part.
The mixture that described polyvinyl chloride resin is made up of with weight ratio 2:1 calcium carbide process PVC resin and ethylene process polyvinyl chloride resin.
Described softening agent is the mixture be made up of with weight ratio 1.5:0.8:1 hexanaphthene 1,2-dioctyl phthalate diisononyl esters, triethyl citrate and epoxy soybean oil.
The mixture that described weighting agent is made up of with weight ratio 0.8:1 water-ground limestone and light calcium carbonate.
The mixture that described thermo-stabilizer is made up of with weight ratio 0.8:1 Ca-Zn composite heat stabilizer and hydrotalcite thermal stabilizer; The mixture that described Ca-Zn composite heat stabilizer is made up of with weight ratio 0.5:1:0.5:0.8 calcium stearate, ricinolic acid calcium, Zinic stearas and zinc ricinate.
Described mould inhibitor is 10, the mixture that the two phenoxazine arsenic of 10 '-oxo and diethyl-2,3-epoxypropyl-[3-(methyl dimethoxy oxygen base)] silicon propyl ammonium chloride form with weight ratio 1.4:1.
The mixture that described synergist is made up of with weight ratio 0.5:1 antimonous oxide and zinc borate.
Described lubricant is molecular weight 3000, fusing point is at the polyethylene wax of 100 DEG C.
Described mildew-resistant PVC is material modified also comprises impact modifier 5 parts, and described impact modifier is the mixture that the chlorinatedpolyethylene of 25% and the ethylene-vinyl acetate copolymer of vinyl acetate between to for plastic unit content 5% form with weight ratio 1.5:1 by chlorinity.
Described mildew-resistant PVC is material modified also comprises fire retardant 1 part, slipping agent 0.05 part and 0.01 part, pigment powder; The mixture that described fire retardant is made up of with weight ratio 1.1:1 antimonous oxide and zinc borate; Described slipping agent is the mixture be made up of with weight ratio 1.5:0.8:1 erucicamide, amine hydroxybenzene and N, N'-ethylene bis stearamide; Described pigment powder is particle diameter at the titanium dioxide of 1 μm; The mixture that described titanium dioxide is made up of with weight ratio 1:1.5 Rutile type Titanium Dioxide and anatase thpe white powder.
The preparation method that mildew-resistant PVC is material modified, comprises the steps:
(1) take above-mentioned raw materials mixing by weight ratio, put into high speed blender, at 100 DEG C of temperature, stir 25min;
(2) raw material after stirring is passed through twin screw extruder extruding pelletization, obtained mildew-resistant PVC is material modified.
In described step (2), the extruder temperature of twin screw extruder is: district's temperature 138 DEG C, two district's temperature 135 DEG C, three district's temperature 135 DEG C, four district's temperature 132 DEG CHe five district temperature 130 DEG C.
Embodiment 2
A kind of mildew-resistant PVC is material modified, the material modified raw material comprising following weight part of described mildew-resistant PVC:
Polyvinyl chloride resin 90 parts
55 parts, softening agent
Weighting agent 22 parts
Thermo-stabilizer 4 parts
Mould inhibitor 1.5 parts
Synergist 0.7 part
Lubricant 0.3 part.
The mixture that described polyvinyl chloride resin is made up of with weight ratio 2.5:1 calcium carbide process PVC resin and ethylene process polyvinyl chloride resin.
Described softening agent is the mixture be made up of with weight ratio 1.8:0.9:1 hexanaphthene 1,2-dioctyl phthalate diisononyl esters, triethyl citrate and epoxy soybean oil.
The mixture that described weighting agent is made up of with weight ratio 0.9:1 water-ground limestone and light calcium carbonate.
The mixture that described thermo-stabilizer is made up of with weight ratio 0.9:1 Ca-Zn composite heat stabilizer and hydrotalcite thermal stabilizer; The mixture that described Ca-Zn composite heat stabilizer is made up of with weight ratio 0.8:1:0.8:0.9 calcium stearate, ricinolic acid calcium, Zinic stearas and zinc ricinate.
Described mould inhibitor is 10, the mixture that the two phenoxazine arsenic of 10 '-oxo and diethyl-2,3-epoxypropyl-[3-(methyl dimethoxy oxygen base)] silicon propyl ammonium chloride form with weight ratio 1.6:1.
The mixture that described synergist is made up of with weight ratio 0.8:1 antimonous oxide and zinc borate.
Described lubricant is molecular weight 3500, fusing point is at the polyethylene wax of 105 DEG C.
Described mildew-resistant PVC is material modified also comprises impact modifier 6 parts, and described impact modifier is the mixture that the chlorinatedpolyethylene of 30% and the ethylene-vinyl acetate copolymer of vinyl acetate between to for plastic unit content 10% form with weight ratio 1.8:1 by chlorinity.
Described mildew-resistant PVC is material modified also comprises fire retardant 2 parts, slipping agent 0.08 part and 0.02 part, pigment powder; The mixture that described fire retardant is made up of with weight ratio 1.2:1 antimonous oxide and zinc borate; Described slipping agent is the mixture be made up of with weight ratio 1.8:0.9:1 erucicamide, amine hydroxybenzene and N, N'-ethylene bis stearamide; Described pigment powder is particle diameter at the titanium dioxide of 2 μm; The mixture that described titanium dioxide is made up of with weight ratio 1:1.8 Rutile type Titanium Dioxide and anatase thpe white powder.
The preparation method that mildew-resistant PVC is material modified, comprises the steps:
(1) take above-mentioned raw materials mixing by weight ratio, put into high speed blender, at 110 DEG C of temperature, stir 22min;
(2) raw material after stirring is passed through twin screw extruder extruding pelletization, obtained mildew-resistant PVC is material modified.
In described step (2), the extruder temperature of twin screw extruder is: district's temperature 140 DEG C, two district's temperature 140 DEG C, three district's temperature 135 DEG C, four district's temperature 135 DEG CHe five district temperature 135 DEG C.
Embodiment 3
A kind of mildew-resistant PVC is material modified, the material modified raw material comprising following weight part of described mildew-resistant PVC:
Polyvinyl chloride resin 100 parts
60 parts, softening agent
Weighting agent 25 parts
Thermo-stabilizer 5 parts
Mould inhibitor 2 parts
Synergist 0.8 part
Lubricant 0.4 part.
The mixture that described polyvinyl chloride resin is made up of with weight ratio 3:1 calcium carbide process PVC resin and ethylene process polyvinyl chloride resin.
Described softening agent is the mixture be made up of with weight ratio 2:1:1 hexanaphthene 1,2-dioctyl phthalate diisononyl esters, triethyl citrate and epoxy soybean oil.
The mixture that described weighting agent is made up of with weight ratio 1:1 water-ground limestone and light calcium carbonate.
The mixture that described thermo-stabilizer is made up of with weight ratio 1:1 Ca-Zn composite heat stabilizer and hydrotalcite thermal stabilizer; The mixture that described Ca-Zn composite heat stabilizer is made up of with weight ratio 1:1:1:1 calcium stearate, ricinolic acid calcium, Zinic stearas and zinc ricinate.
Described mould inhibitor is 10, the mixture that the two phenoxazine arsenic of 10 '-oxo and diethyl-2,3-epoxypropyl-[3-(methyl dimethoxy oxygen base)] silicon propyl ammonium chloride form with weight ratio 1.8:1.
The mixture that described synergist is made up of with weight ratio 1:1 antimonous oxide and zinc borate.
Described lubricant is molecular weight 4000, fusing point is at the polyethylene wax of 110 DEG C.
Described mildew-resistant PVC is material modified also comprises impact modifier 8 parts, and described impact modifier is the mixture that the chlorinatedpolyethylene of 35% and the ethylene-vinyl acetate copolymer of vinyl acetate between to for plastic unit content 15% form with weight ratio 2:1 by chlorinity.
Described mildew-resistant PVC is material modified also comprises fire retardant 3 parts, slipping agent 0.1 part and 0.03 part, pigment powder; The mixture that described fire retardant is made up of with weight ratio 1.3:1 antimonous oxide and zinc borate; Described slipping agent is the mixture be made up of with weight ratio 2:1:1 erucicamide, amine hydroxybenzene and N, N'-ethylene bis stearamide; Described pigment powder is particle diameter at the titanium dioxide of 3 μm; The mixture that described titanium dioxide is made up of with weight ratio 1:2 Rutile type Titanium Dioxide and anatase thpe white powder.
The preparation method that mildew-resistant PVC is material modified, comprises the steps:
(1) take above-mentioned raw materials mixing by weight ratio, put into high speed blender, at 120 DEG C of temperature, stir 20min;
(2) raw material after stirring is passed through twin screw extruder extruding pelletization, obtained mildew-resistant PVC is material modified.
In described step (2), the extruder temperature of twin screw extruder is: district's temperature 160 DEG C, two district's temperature 160 DEG C, three district's temperature 155 DEG C, four district's temperature 150 DEG CHe five district temperature 148 DEG C.
Embodiment 4
A kind of mildew-resistant PVC is material modified, the material modified raw material comprising following weight part of described mildew-resistant PVC:
Polyvinyl chloride resin 110 parts
65 parts, softening agent
Weighting agent 28 parts
Thermo-stabilizer 6 parts
Mould inhibitor 2.5 parts
Synergist 0.9 part
Lubricant 0.5 part.
The mixture that described polyvinyl chloride resin is made up of with weight ratio 3.5:1 calcium carbide process PVC resin and ethylene process polyvinyl chloride resin.
Described softening agent is the mixture be made up of with weight ratio 2.2:1.1:1 hexanaphthene 1,2-dioctyl phthalate diisononyl esters, triethyl citrate and epoxy soybean oil.
The mixture that described weighting agent is made up of with weight ratio 1.1:1 water-ground limestone and light calcium carbonate.
The mixture that described thermo-stabilizer is made up of with weight ratio 1.1:1 Ca-Zn composite heat stabilizer and hydrotalcite thermal stabilizer; The mixture that described Ca-Zn composite heat stabilizer is made up of with weight ratio 1.2:1:1.2:1.1 calcium stearate, ricinolic acid calcium, Zinic stearas and zinc ricinate.
Described mould inhibitor is 10, the mixture that the two phenoxazine arsenic of 10 '-oxo and diethyl-2,3-epoxypropyl-[3-(methyl dimethoxy oxygen base)] silicon propyl ammonium chloride form with weight ratio 2.0:1.
The mixture that described synergist is made up of with weight ratio 1.2:1 antimonous oxide and zinc borate.
Described lubricant is molecular weight 4500, fusing point is at the polyethylene wax of 115 DEG C.
Described mildew-resistant PVC is material modified also comprises impact modifier 9 parts, and described impact modifier is the mixture that the chlorinatedpolyethylene of 40% and the ethylene-vinyl acetate copolymer of vinyl acetate between to for plastic unit content 20% form with weight ratio 2.2:1 by chlorinity.
Described mildew-resistant PVC is material modified also comprises fire retardant 4 parts, slipping agent 0.12 part and 0.04 part, pigment powder; The mixture that described fire retardant is made up of with weight ratio 1.4:1 antimonous oxide and zinc borate; Described slipping agent is the mixture be made up of with weight ratio 2.2:1.1:1 erucicamide, amine hydroxybenzene and N, N'-ethylene bis stearamide; Described pigment powder is particle diameter at the titanium dioxide of 4 μm; The mixture that described titanium dioxide is made up of with weight ratio 1:2.2 Rutile type Titanium Dioxide and anatase thpe white powder.
The preparation method that mildew-resistant PVC is material modified, comprises the steps:
(1) take above-mentioned raw materials mixing by weight ratio, put into high speed blender, at 130 DEG C of temperature, stir 18min;
(2) raw material after stirring is passed through twin screw extruder extruding pelletization, obtained mildew-resistant PVC is material modified.
In described step (2), the extruder temperature of twin screw extruder is: district's temperature 155 DEG C, two district's temperature 155 DEG C, three district's temperature 150 DEG C, four district's temperature 148 DEG CHe five district temperature 145 DEG C.
Embodiment 5
A kind of mildew-resistant PVC is material modified, the material modified raw material comprising following weight part of described mildew-resistant PVC:
Polyvinyl chloride resin 120 parts
70 parts, softening agent
Weighting agent 30 parts
Thermo-stabilizer 7 parts
Mould inhibitor 3 parts
Synergist 1.0 parts
Lubricant 0.6 part.
The mixture that described polyvinyl chloride resin is made up of with weight ratio 4:1 calcium carbide process PVC resin and ethylene process polyvinyl chloride resin.
Described softening agent is the mixture be made up of with weight ratio 2.5:1.2:1 hexanaphthene 1,2-dioctyl phthalate diisononyl esters, triethyl citrate and epoxy soybean oil.
The mixture that described weighting agent is made up of with weight ratio 1.2:1 water-ground limestone and light calcium carbonate.
The mixture that described thermo-stabilizer is made up of with weight ratio 1.2:1 Ca-Zn composite heat stabilizer and hydrotalcite thermal stabilizer; The mixture that described Ca-Zn composite heat stabilizer is made up of with weight ratio 1.5:1:1.5:1.2 calcium stearate, ricinolic acid calcium, Zinic stearas and zinc ricinate.
Described mould inhibitor is 10, the mixture that the two phenoxazine arsenic of 10 '-oxo and diethyl-2,3-epoxypropyl-[3-(methyl dimethoxy oxygen base)] silicon propyl ammonium chloride form with weight ratio 2.2:1.
The mixture that described synergist is made up of with weight ratio 1.5:1 antimonous oxide and zinc borate.
Described lubricant is molecular weight 5000, fusing point is at the polyethylene wax of 120 DEG C.
Described mildew-resistant PVC is material modified also comprises impact modifier 10 parts, and described impact modifier is the mixture that the chlorinatedpolyethylene of 45% and the ethylene-vinyl acetate copolymer of vinyl acetate between to for plastic unit content 25% form with weight ratio 2.5:1 by chlorinity.
Described mildew-resistant PVC is material modified also comprises fire retardant 5 parts, slipping agent 0.15 part and 0.05 part, pigment powder; The mixture that described fire retardant is made up of with weight ratio 1.5:1 antimonous oxide and zinc borate; Described slipping agent is the mixture be made up of with weight ratio 2.5:1.2:1 erucicamide, amine hydroxybenzene and N, N'-ethylene bis stearamide; Described pigment powder is particle diameter at the titanium dioxide of 5 μm; The mixture that described titanium dioxide is made up of with weight ratio 1:2.5 Rutile type Titanium Dioxide and anatase thpe white powder.
The preparation method that mildew-resistant PVC is material modified, comprises the steps:
(1) take above-mentioned raw materials mixing by weight ratio, put into high speed blender, at 140 DEG C of temperature, stir 15min;
(2) raw material after stirring is passed through twin screw extruder extruding pelletization, obtained mildew-resistant PVC is material modified.
In described step (2), the extruder temperature of twin screw extruder is: district's temperature 160 DEG C, two district's temperature 160 DEG C, three district's temperature 155 DEG C, four district's temperature 150 DEG CHe five district temperature 148 DEG C.
The material modified mechanical and physical performance of the mildew-resistant PVC that embodiment 1-5 obtains is as shown in table 1:
Table 1
| Test event | Standard value | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Tensile strength (MPa) | ≥15.0 | 24.4 | 25.6 | 26.1 | 23.2 | 24.9 |
| Flexural strength (MPa) | ≥15.0 | 48.7 | 51.6 | 54.4 | 45.2 | 50.1 |
| Elongation at break (%) | ≥150 | 304 | 311 | 322 | 302 | 317 |
| Heat-drawn wire (DEG C) | ≥50.0 | 118.2 | 120.5 | 122.4 | 116.2 | 119.5 |
| Impact embrittlement temperature (DEG C) | ≤-20 | -35 | -40 | -40 | -35 | -40 |
| Heat-stable time (min) when 200 DEG C | ≥60 | 110 | 120 | 120 | 100 | 110 |
| Hardness/Shore D | ≥50 | 82 | 84 | 85 | 80 | 83 |
| Fire-retardant | V0 | V0 | V0 | V0 | V0 | V0 |
| Anti-mold effect | 2 grades | 1 grade | 0 grade | 0 grade | 0 grade | 1 grade |
As can be seen from Table 1, the material modified properties of the mildew-resistant PVC that the present invention obtains is all beyond national standard, and anti-mold effect is good, environmental protection, and resistance to gentle weather resistance is excellent, intensity is high, excellent shock resistance, good flame retardation effect, processing characteristics is excellent, excellent combination property.
Above-described embodiment is the present invention's preferably implementation, and in addition, the present invention can also realize by alternate manner, and any apparent replacement is all within protection scope of the present invention without departing from the inventive concept of the premise.
Claims (10)
1. a mildew-resistant PVC is material modified, it is characterized in that: the material modified raw material comprising following weight part of described mildew-resistant PVC:
Polyvinyl chloride resin 80-120 part
Softening agent 50-70 part
Weighting agent 20-30 part
Thermo-stabilizer 3-7 part
Mould inhibitor 1-3 part
Synergist 0.6-1.0 part
Lubricant 0.2-0.6 part.
2. a kind of mildew-resistant PVC according to claim 1 is material modified, it is characterized in that: the mixture that described polyvinyl chloride resin is made up of with weight ratio 2-4:1 calcium carbide process PVC resin and ethylene process polyvinyl chloride resin.
3. a kind of mildew-resistant PVC according to claim 1 is material modified, it is characterized in that: described softening agent is the mixture be made up of with weight ratio 1.5-2.5:0.8-1.2:1 hexanaphthene 1,2-dioctyl phthalate diisononyl esters, triethyl citrate and epoxy soybean oil.
4. a kind of mildew-resistant PVC according to claim 1 is material modified, it is characterized in that: the mixture that described weighting agent is made up of with weight ratio 0.8-1.2:1 water-ground limestone and light calcium carbonate.
5. a kind of mildew-resistant PVC according to claim 1 is material modified, it is characterized in that: the mixture that described thermo-stabilizer is made up of with weight ratio 0.8-1.2:1 Ca-Zn composite heat stabilizer and hydrotalcite thermal stabilizer; The mixture that described Ca-Zn composite heat stabilizer is made up of with weight ratio 0.5-1.5:1:0.5-1.5:0.8-1.2 calcium stearate, ricinolic acid calcium, Zinic stearas and zinc ricinate.
6. a kind of mildew-resistant PVC according to claim 1 is material modified, it is characterized in that: described mould inhibitor is 10, the mixture that the two phenoxazine arsenic of 10 '-oxo and diethyl-2,3-epoxypropyl-[3-(methyl dimethoxy oxygen base)] silicon propyl ammonium chloride form with weight ratio 1.4-2.2:1.
7. a kind of mildew-resistant PVC according to claim 1 is material modified, it is characterized in that: the mixture that described synergist is made up of with weight ratio 0.5-1.5:1 antimonous oxide and zinc borate.
8. a kind of mildew-resistant PVC according to claim 1 is material modified, it is characterized in that: described lubricant is molecular weight at 3000-5000, fusing point at the polyethylene wax of 100-120 DEG C.
9. the preparation method that a kind of mildew-resistant PVC as described in any one of claim 1-8 is material modified, is characterized in that: comprise the steps:
(1) take above-mentioned raw materials mixing by weight ratio, put into high speed blender, at 100-140 DEG C of temperature, stir 15-25min;
(2) raw material after stirring is passed through twin screw extruder extruding pelletization, obtained mildew-resistant PVC is material modified.
10. the preparation method that a kind of mildew-resistant PVC according to claim 9 is material modified, it is characterized in that: in described step (2), the extruder temperature of twin screw extruder is: a district temperature 138-160 DEG C, two district temperature 135-160 DEG C, three district temperature 135-155 DEG C, four district temperature 132-150 DEG CHe five district temperature 130-148 DEG C.
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Address after: Ye Wu industrial zone Dalingshan Meilin Village 523000 Guangdong city of Dongguan Province Applicant after: Guangdong Qi Long Technology Co., Ltd. Address before: Ye Wu industrial zone Dalingshan Meilin Village 523820 Guangdong city of Dongguan Province Applicant before: Dongguan Qilong Electricity Co., Ltd. |
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Application publication date: 20160323 |