CN102181090A - Special weatherproof moldproof functional master batch for wood/plastic composite material and preparation method thereof - Google Patents
Special weatherproof moldproof functional master batch for wood/plastic composite material and preparation method thereof Download PDFInfo
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- CN102181090A CN102181090A CN2011100954800A CN201110095480A CN102181090A CN 102181090 A CN102181090 A CN 102181090A CN 2011100954800 A CN2011100954800 A CN 2011100954800A CN 201110095480 A CN201110095480 A CN 201110095480A CN 102181090 A CN102181090 A CN 102181090A
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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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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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
-
- 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
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- 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
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- 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
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention discloses a special weatherproof moldproof functional master batch for a wood/plastic composite material. The special weatherproof moldproof functional master batch for a wood/plastic composite material is prepared from the following components in percentage by mass: 30-55% of polyethylene or EVA (ethylene-vinyl acetate), 3-8% of ethylene bis stearamide, 2-7% of polyethylene wax, 8-15% of Tinuvin 360, 10-25% of ZnO, 5-10% of antioxidant 300, 5-15% of 4,5-dichloro-N-octyl-3-isothiazolinone and 5-15% of N-trichloromethylthiophthalimide. The invention can be widely used in various outdoor wood/plastic composite materials; the wood/plastic composite material with the functional master batch can be used outdoors for a long time; the functional master batch obviously solves the problem of discolorment of the wood/plastic composite material when the wood/plastic composite material is used outdoors, prevent the mold from growth, greatly prolongs the service life of the wood/plastic composite material; and the addition process is simple and convenient for operation, and does not produce dust pollution.
Description
Technical field:
The present invention relates to functional agglomerate of a kind of wood plastic composite and preparation method thereof, be specifically related to a kind of functional agglomerate and preparation method thereof of weather-proof and mildew-resistant of wood plastic composite special use.
Background technology:
Wood plastic composite (Wood-Plastic Composite, be called for short WPC) is a kind ofly to be mixed with certain proportion with THERMOPLASTIC RESINS or other material by natural fiber, by interpolation specific adjuvant, a kind of type material of making after high temperature high pressure process.Wood plastic composite has the advantage of vegetable fibre and thermoplastics concurrently, and have that price is low, woodiness touch good, characteristics such as xylon abundant information, specific tenacity and hardness height, forest reserves scarcities, wood supply contradiction in short supply have effectively been alleviated, vegetable fibre has recyclability, characteristics such as biodegradable in addition, reduced white pollution, be a kind of green material that has development prospect, its production technology also is considered to an innovative technology that has vitality.Wood plastic composite is an emerging industry in China, also is fast-developing sunrise industry, meets the industry development strategy of national energy-saving and emission-reduction, low-carbon circular economy, the new way of having opened up the industrialized utilization agricultural wastes.
Although wood plastic composite has lot of advantages, can be at more multi-field alternative solid wood material, but in recent years, be widely used in outdoor Application Areass such as harbour, guardrail, road sign, door and window along with it, the weather resistance that wood plastic product is exposed to the open air use under the atmosphere physical environments such as sunlight and moisture more and more receives publicity.Test shows, the ageing-resistant performance of ordinary hot thermoplastic plastic is not good enough, the photodegradation behavior of WPC under ultraviolet irradiation quickened in the adding of wood fibre, material surface generation oxidation stain also loses aesthetic property, the material crystal property change and moisture absorption after reason such as composite material interface layer degraded cause that material mechanical performance declines to a great extent.The use properties that this has had a strong impact on wood plastic product has shortened its work-ing life, causes tremendous loss every year.
In addition, owing to contain wood fibre in the wood plastic composite, be subject to causing harm of mould rotten fungi (mould and wood-decay fungi).Test shows, the wood plastic composite of outdoor application does not accomplish that as bed board, fence etc. its predicted life is long, the requirement of Maintenance free.In fact, the matrix material that wooden loading level is high is the same with natural timber, also can be mouldy, grow mushroom, be subjected to the corrosion of water, even eaten up by termite.Mould is nutrition with monose, hemicellulose and Mierocrystalline cellulose, can make wood mould composite material surface and produce macroscopic mould spot, causes variable color, has a strong impact on that it is attractive in appearance; Wood-rotting fungi but can decompose xylogen, and destroy cellularstructure, make wood mould performance such as mechanics to change, any part of the wood plastic composite of causing harm, the various piece that spreads all over polymkeric substance makes loss amount up to more than 20%, shortens its work-ing life.
The at present domestic outside durabitity and the research report of fungicidal properties at wood plastic composite is less, alternative stabilizer type that is specifically applied to wood plastic product is still lacked on market, the mould inhibitor kind of available application on market is also few, still has nothing to do in the kind of wood plastic composite dedicated weather-proof antimildew function master batch both at home and abroad.In the prior art, for improving the weather-proof and fungicidal properties of wood plastic product, usually be chosen in the preparation process of wood plastic product and add weather resisting agent and mould inhibitor respectively, because weather resisting agent and mould inhibitor is generally the pulvis formulation and addition is few, in the course of processing, there is dust pollution question and disperses problems such as inhomogeneous, simultaneously multi-functional in order to realize, need repeatedly add various auxiliary agents, it is many to add step, makes the cost of multi-functional wood plastic product increase and difficult quality guarantee.
Summary of the invention:
It is poor to the objective of the invention is at the wood plastic composite weathering resistance, mouldy easily, and causes short shortcoming in work-ing life, and a kind of wood plastic composite dedicated weather-proof antimildew function master batch that can improve the weather-proof and fungicidal properties of wood plastic composite and preparation method thereof is provided.By in wood plastic composite, adding this functional agglomerate, weather resisting agent and mould inhibitor are uniformly dispersed, give good weathering resistance of wood plastic composite and mildew resistance, be applicable to polyvinyl, polypropylene-base, polyvinyl chloride-based and styryl wood plastic composite.
Wood plastic composite dedicated weather-proof antimildew function master batch of the present invention is characterized in that, by massfraction 100%, is made up of following component:
Polyethylene or EVA 30～55%;
Ethylene bis stearic acid amide 3～8%;
Polyethylene wax 2～7%;
Tinuvin?360 8～15％；
ZnO 10～25％；
Antioxidant 300 5～10%;
4,5-two chloro-N-octyl group-3-isothiazolinone 5～15%;
N-trichloro-methylthio phthalimide 5～15%.
Described wood plastic composite dedicated weather-proof antimildew function master batch, by massfraction 100%, preferably form by following component:
Polyethylene 40%;
Ethylene bis stearic acid amide 7%;
Polyethylene wax 3%;
Tinuvin?360 12％；
ZnO 10％；
Antioxidant 300 8%;
4,5-two chloro-N-octyl group-3-isothiazolinone 5%;
N-trichloro-methylthio phthalimide 15%.
Wood plastic composite dedicated weather-proof antimildew function master batch of the present invention prepares by the following method, and this method may further comprise the steps:
(1) add to solid support material polyethylene or EVA, dispersion agent ethylene bis stearic acid amide and polyethylene wax in the homogenizer according to the above ratio, high-speed stirring 1min～3min, it is stirred, again in proportion with photostabilizer Tinuvin360, acid absorber ZnO, antioxidant 300, mould inhibitor 4,5-two chloro-N-octyl groups-3-isothiazolinone (DCOIT) and mould inhibitor N-trichloro-methylthio phthalimide (Phaltan) add in the homogenizer simultaneously, high-speed stirring 3min～5min, it is stirred, obtain mixture;
(2) mixture is put in the twin screw extruder, temperature is 110～150 ℃, screw speed 200～300r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain wood plastic composite dedicated weather-proof antimildew function master batch.
Described EVA promptly refers to hot melt adhesive.Hot melt adhesive is a kind of not moisture, does not need the solid meltability polymkeric substance of solvent, and hot melt adhesive is a solid at normal temperatures, is heated to fusion after the certain temperature, becomes and can flow and existing close-burning liquid.The main component of hot melt adhesive is that the resin that forms with ethene and vinyl acetate between to for plastic copolymerization under high pressure is a basic resin.EVA belongs to product of the prior art, can buy from the market.
Described Tinuvin360 is the 2-hydroxybenzotriazole uv-absorbing agent of a dimerization, chemical name: 2,2 '-methylene radical two (6-(2H-benzotriazole-2-yl)-4-(1,1,3, the 3-tetramethyl butyl) phenol.
Described antioxidant 300 is a kind of high-efficiency multi-function sulfur-bearing Hinered phenols antioxidants, chemical name: 4, and 4 '-thiobis-(3-methyl, 6-t-butyl phenol), molecular formula: C
22H
30O
2S, its structural formula be as the formula (1):
The using method of wood plastic composite dedicated weather-proof antimildew function master batch of the present invention: before wood is moulded grain, the wood plastic composite dedicated weather-proof antimildew function master batch that accounts for total mass fractional 1～5% is moulded auxiliary agent (coupling agent, lubricant etc.) with other wood to join wood and moulds in the raw material, mix by high mixer, extruding pelletization then, carry out the production moulding of goods then according to original conventional production process, can suitably adjust production technique as required in case of necessity.
Wood plastic composite dedicated weather-proof antimildew function master batch of the present invention, be primarily aimed at the aging carboxyl that produces of wood components, carbonyl, quinone, groups such as ketone have the also effect of accelerated deterioration of inducing to the macromolecular material of plastic fraction, select for use UV-light that the strong photostabilizer that absorbs is arranged to causing wood components and plastics generation aged wavelength 280～380nm scope, select for use antioxidant 300 anti-oxidant, avoid carboxyl, carbonyl, quinone, the hazardness of groups such as ketone, and with ZnO as acid-acceptor and photomask agent, make functional agglomerate have good weathering resistance to wood plastic composite; It is owing to contain wood fibre in the wood plastic composite that wood is moulded mouldy major cause, be subject to the harm of mould rotten fungi, investigate and strain identification by many-side, find to cause that wood moulds that mouldy mould mainly contains that aspergillus niger, penicillium funiculosum, Chaetomium globosum, green sticking broom are mould, Aureobasidium pullulans etc.The present invention selects 4 for use, 5-two chloro-N-octyl groups-3-isothiazolinone (DCOIT) and N-trichloro-methylthio phthalimide (Phaltan) are as mould inhibitor, carry out rationally composite, find that through experiment it has better restraining effect to these several moulds, have advantages such as efficient, wide spectrum, low toxicity, duration of efficacy be long, environmentally safe, avoided conflicting of mould inhibitor and other auxiliary agents simultaneously; The adding of dispersion agent can make auxiliary agent homodisperse in wood plastic composite, so that master batch can reach the weathering resistance of raising wood plastic composite and the purpose of mildew resistance simultaneously.
The experiment proved that, the polyethylene based wood-plastic composite material that adds 1～5% (mass percent) wood plastic composite dedicated weather-proof of the present invention antimildew function master batch is through the exposure test of 1000h xenon lamp, its stretching strength retentivity is brought up to more than 90% by about 62%, simply supported beam unnotched impact strength conservation rate is brought up to more than 75% by 60%, and aberration Δ E drops to below 15 by about 60; The polyvinyl chloride based wood-plastic composite material that adds 1～5% (mass percent) wood plastic composite dedicated weather-proof of the present invention antimildew function master batch is through the exposure test of 1000h xenon lamp, its stretching strength retentivity is brought up to more than 80% by about 55%, simply supported beam unnotched impact strength conservation rate is brought up to more than 70% by 50%, and aberration Δ E drops to below 24 by about 73.The mildew-resistant grade of adding the polyvinyl of 1～5% (mass percent) wood plastic composite dedicated weather-proof of the present invention antimildew function master batch and polyvinyl chloride based wood-plastic composite material all can reach 0 grade or 1 grade (the mildew-resistant grade to the wood plastic composite that promptly do not add functional agglomerate in the same old way is 4 grades).When this shows that adding wood plastic composite dedicated weather-proof antimildew function master batch of the present invention can make wood plastic composite use out of doors; appearance color stability significantly strengthens; mechanical properties decrease speed reduces greatly; can protect wood plastic composite to avoid the harm of mould fungi effectively, improve the work-ing life of wood plastic composite greatly.
Therefore the present invention can be widely used in the wood plastic composite of various outdoors, add the wood plastic composite life-time service out of doors behind this functional agglomerate, significantly improve the wood plastic composite discoloration problem in the use out of doors, prevent the growth of mould, improve work-ing life greatly, the interpolation process is simple, is convenient to operation, no dust pollution.
Embodiment:
Below be to further specify to of the present invention, rather than limitation of the present invention.
Embodiment 1:
1, at first, solid support material polythene PE 40kg, dispersion agent ethylene bis stearic acid amide 5kg and polyethylene wax 5kg are added in the homogenizer, rotating speed is 500r/min, high-speed stirring 2min, with photostabilizer Tinuvin36010kg, acid absorber ZnO 15kg, antioxidant 300 5kg, mould inhibitor DCOIT 10kg and Phaltan 10kg, add simultaneously in the homogenizer, rotating speed is 500/min again, high-speed stirring 3min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 110 ℃～130 ℃, screw speed 200r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyethylene based wood-plastic composite material, prepare weather-proof mould-proof wood plastic composite material according to common process, its weather resistance and fungicidal properties see Table 1 and table 3 respectively.
Embodiment 2:
1, at first, solid support material polythene PE 45kg, dispersion agent ethylene bis stearic acid amide 3kg and polyethylene wax 2kg are added in the homogenizer, rotating speed is 500r/min, high-speed stirring 1min, with photostabilizer Tinuvin 3608kg, acid absorber ZnO 10kg, antioxidant 300 7kg, mould inhibitor DCOIT 15kg and Phaltan 10kg, add simultaneously in the homogenizer, rotating speed is 500r/min again, high-speed stirring 4min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 120 ℃～140 ℃, screw speed 240r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyethylene based wood-plastic composite material, obtain weather-proof mould-proof wood plastic composite material through conventional prepared, its weather resistance and fungicidal properties see Table 1 and table 3 respectively.
Embodiment 3:
1, at first, solid support material polythene PE 35kg, dispersion agent ethylene bis stearic acid amide 8kg and polyethylene wax 2kg are added in the homogenizer, rotating speed is 800r/min, high-speed stirring 1min, with photostabilizer Tinuvin 36010kg, acid absorber ZnO 15kg, antioxidant 300 10kg, mould inhibitor DCOIT 10kg and Phaltan 10kg, add simultaneously in the homogenizer, rotating speed is 800r/min again, high-speed stirring 3min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 130 ℃～150 ℃, screw speed 300r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyethylene based wood-plastic composite material, obtain weather-proof mould-proof wood plastic composite material through conventional prepared, its weather resistance and fungicidal properties see Table 1 and table 3 respectively.
Embodiment 4:
1, at first, solid support material polythene PE 30kg, dispersion agent ethylene bis stearic acid amide 5kg and polyethylene wax 5kg are added in the homogenizer, rotating speed is 800r/min, high-speed stirring 3min, with photostabilizer Tinuvin 36010kg, acid absorber ZnO 25kg, antioxidant 300 10kg, mould inhibitor DCOIT 8kg and Phaltan 7kg, add simultaneously in the homogenizer, rotating speed is 800r/min again, high-speed stirring 3min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 130 ℃～150 ℃, screw speed 220r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyethylene based wood-plastic composite material, obtain weather-proof mould-proof wood plastic composite material through conventional prepared, its weather resistance and fungicidal properties see Table 1 and table 3 respectively.
Embodiment 5:
1, at first, solid support material polythene PE 40kg, dispersion agent ethylene bis stearic acid amide 7kg and polyethylene wax 3kg are added in the homogenizer, rotating speed is 600r/min, high-speed stirring 2min, with photostabilizer Tinuvin36012kg, acid absorber ZnO 10kg, antioxidant 300 8kg, mould inhibitor DCOIT 5kg and Phaltan 15kg, add simultaneously in the homogenizer, rotating speed is 600r/min again, high-speed stirring 4min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 120 ℃～140 ℃, screw speed 220r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyethylene based wood-plastic composite material, obtain weather-proof mould-proof wood plastic composite material through conventional prepared, its weather resistance and fungicidal properties see Table 1 and table 3 respectively.
Embodiment 6:
1, at first, solid support material EVA55kg, dispersion agent ethylene bis stearic acid amide 5kg and polyethylene wax 5kg are added in the homogenizer, rotating speed is 1000r/min, high-speed stirring 2min, with photostabilizer Tinuvin36010kg, acid absorber ZnO 10kg, antioxidant 300 5kg, mould inhibitor DCOIT 5kg and Phaltan 5kg, add simultaneously in the homogenizer, rotating speed is 1000r/min again, high-speed stirring 3min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 110 ℃～130 ℃, screw speed 200r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyvinyl chloride based wood-plastic composite material, obtain weather-proof mould-proof wood plastic composite material through conventional prepared, its weather resistance and fungicidal properties see Table 2 and table 4 respectively.
Embodiment 7:
1, at first, solid support material EVA 45kg, dispersion agent ethylene bis stearic acid amide 3kg and polyethylene wax 7kg are added in the homogenizer, rotating speed is 1000r/min, high-speed stirring 1min, with photostabilizer Tinuvin3608kg, acid absorber ZnO 15kg, antioxidant 300 7kg, mould inhibitor DCOIT 5kg and Phaltan 10kg, add simultaneously in the homogenizer, rotating speed is 1000r/min again, high-speed stirring 4min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 120 ℃～140 ℃, screw speed 240r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyvinyl chloride based wood-plastic composite material, obtain weather-proof mould-proof wood plastic composite material through conventional prepared, its weather resistance and fungicidal properties see Table 2 and table 4 respectively.
Embodiment 8:
1, at first, solid support material EVA35kg, dispersion agent ethylene bis stearic acid amide 8kg and polyethylene wax 2kg are added in the homogenizer, rotating speed is 1000r/min, high-speed stirring 1min, with photostabilizer Tinuvin36010kg, acid absorber ZnO 15kg, antioxidant 300 10kg, mould inhibitor DCOIT 10kg and Phaltan 10kg, add simultaneously in the homogenizer, rotating speed is 1000r/min again, high-speed stirring 3min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 130 ℃～150 ℃, screw speed 300r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyvinyl chloride based wood-plastic composite material, obtain weather-proof mould-proof wood plastic composite material through conventional prepared, its weather resistance and fungicidal properties see Table 2 and table 4 respectively.
Embodiment 9:
1, at first, solid support material EVA 40kg, dispersion agent ethylene bis stearic acid amide 5kg and polyethylene wax 5kg are added in the homogenizer, rotating speed is 1000r/min, high-speed stirring 2min, with photostabilizer Tinuvin36015kg, acid absorber ZnO 10kg, antioxidant 300 10kg, mould inhibitor DCOIT 10kg and Phaltan 5kg, add simultaneously in the homogenizer, rotating speed is 1000r/min again, high-speed stirring 4min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 120 ℃～140 ℃, screw speed 220r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyvinyl chloride based wood-plastic composite material, obtain weather-proof mould-proof wood plastic composite material through conventional prepared, its weather resistance and fungicidal properties see Table 2 and table 4 respectively.
Embodiment 10:
1, at first, solid support material EVA 30kg, dispersion agent ethylene bis stearic acid amide 5kg and polyethylene wax 5kg are added in the homogenizer, rotating speed is 1000r/min, high-speed stirring 3min, with photostabilizer Tinuvin36010kg, acid absorber ZnO 25kg, antioxidant 300 10kg, mould inhibitor DCOIT 8kg and Phaltan 7kg, add simultaneously in the homogenizer, rotating speed is 1000r/min again, high-speed stirring 5min obtains mixture.
2, mixture is put in the twin screw extruder, temperature is 130 ℃～150 ℃, screw speed 200r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain the about 100kg of wood plastic composite dedicated weather-proof antimildew function master batch.
3, the functional agglomerate that obtains is added to 3% mass percent in the raw material of polyvinyl chloride based wood-plastic composite material, obtain weather-proof mould-proof wood plastic composite material through conventional prepared, its weather resistance and fungicidal properties see Table 2 and table 4 respectively.
Performance test:
1, according to the weather-proof standard GB/T 16422.2-1999 of xenon lamp method A, carry out stretching strength retentivity test, the test of simply supported beam unnotched impact strength conservation rate and chromatism test, to not adding the polyvinyl or the polyvinyl chloride based wood-plastic composite material of functional agglomerate for same recipe in the same old way, test result as shown in Table 1 and Table 2:
Table 1: the weather resistance table of polyethylene based wood-plastic composite material example formulation
Table 2: the weather resistance table of polyvinyl chloride based composites example formulation
By table 1 and table 2 as can be seen, the polyethylene based wood-plastic composite material that has added wood plastic composite dedicated weather-proof antimildew function master batch of the present invention is through the exposure test of 1000h xenon lamp, its stretching strength retentivity is brought up to more than 90% by about 62%, simply supported beam unnotched impact strength conservation rate is brought up to more than 75% by 60%, and aberration Δ E drops to below 15 by about 60; The polyvinyl chloride based wood-plastic composite material that has added wood plastic composite dedicated weather-proof antimildew function master batch of the present invention is through the exposure test of 1000h xenon lamp, its stretching strength retentivity is brought up to more than 80% by about 55%, simply supported beam unnotched impact strength conservation rate is brought up to more than 70% by 50%, and aberration Δ E drops to below 24 by about 73.This shows that when adding wood plastic composite dedicated weather-proof antimildew function master batch of the present invention wood plastic composite being used out of doors, appearance color stability significantly strengthens, mechanical properties decrease speed reduces greatly.
2, fungicidal properties test:
According to the measuring method of ASTM 21-96 synthesized polymer material antifungal property, carry out the fungicidal properties test of Wood-plastic material with the culture dish method.Made sample is cut into 50mm * 50mm specification, lies in the minimal medium surface of solidifying.Prepare fungal spore mixing suspension then: 5 kinds of moulds (aspergillus niger, penicillium funiculosum, Chaetomium globosum, mould, the Aureobasidium pullulans of green sticking broom), the spore suspension of preparation is used spore (1000000 ± 200000) individual/mL, available counter is calculated.The bacterium spore suspension evenly compactly is sprayed on the whole surface of model, and atomizer pressure should reach 110 kPas.After drying slightly, cover culture dish ware lid.Lid mouthful dated sample title, numbering and date, put into incubator, keep 28 ℃～30 ℃ temperature and be not less than under 85% the relative humidity cultivating, the incubation time of touchstone is 28 days, carry out the mildew-resistant grade evaluation after 28 days, mildew-resistant grade evaluation standard is as shown in table 5, the mildew-resistant grade evaluation the results are shown in Table 3 and table 4 shown in, do not add the polyvinyl of functional agglomerate or polyvinyl chloride based wood-plastic composite material in contrast with same recipe.
Table 3: the fungicidal properties table of polyethylene based wood-plastic composite material example formulation
Table 4: the fungicidal properties table of polyvinyl chloride based wood-plastic composite material example formulation
Table 5: mildew-resistant grade evaluation table
By table 3 and table 4 as can be seen, the mildew-resistant grade of sample shows that all less than 1 or equal 1 grade the wood plastic composite that adds wood plastic composite dedicated weather-proof antimildew function master batch of the present invention has good anti-mold effect among each embodiment.Add wood plastic composite dedicated weather-proof antimildew function master batch of the present invention and can effectively protect wood plastic composite to avoid the harm of mould fungi, thereby is provided the work-ing life of wood plastic composite greatly.
In sum, wood plastic composite dedicated weather-proof antimildew function master batch of the present invention can be widely used in the various outdoor wood plastic composites, after adding this wood plastic composite dedicated weather-proof antimildew function master batch, can make wood plastic composite life-time service out of doors, significantly improve the wood plastic composite discoloration problem in the use out of doors, the control mould-growth, improved work-ing life greatly, and its interpolation process is simple, is convenient to operation, no dust pollution.
Claims (3)
1. a wood plastic composite dedicated weather-proof antimildew function master batch is characterized in that, by massfraction 100%, is made up of following component:
Polyethylene or EVA 30～55%;
Ethylene bis stearic acid amide 3～8%;
Polyethylene wax 2～7%;
Tinuvin?360 8～15％；
ZnO 10～25％；
Antioxidant 300 5～10%;
4,5-two chloro-N-octyl group-3-isothiazolinone 5～15%;
N-trichloro-methylthio phthalimide 5～15%.
2. wood plastic composite dedicated weather-proof antimildew function master batch according to claim 1 is characterized in that, described wood plastic composite dedicated weather-proof antimildew function master batch by massfraction 100%, is made up of following component:
Polyethylene 40%;
Ethylene bis stearic acid amide 7%;
Polyethylene wax 3%;
Tinuvin?360 12％；
ZnO 10％；
Antioxidant 300 8%;
4,5-two chloro-N-octyl group-3-isothiazolinone 5%;
N-trichloro-methylthio phthalimide 15%.
3. the preparation method of the described wood plastic composite dedicated weather-proof of claim 1 an antimildew function master batch is characterized in that, may further comprise the steps:
(1) polyethylene or EVA, ethylene bis stearic acid amide and polyethylene wax are added in the homogenizer, high-speed stirring 1min～3min, again with Tinuvin360, ZnO, antioxidant 300,4,5-two chloro-N-octyl group-3-isothiazolinone and N-trichloro-methylthio phthalimide add in the homogenizer simultaneously, high-speed stirring 3min～5min obtains mixture;
(2) mixture is put in the twin screw extruder, temperature is 110～150 ℃, screw speed 200～300r/min, with mixture through twin screw extruder extrude, cooling, granulation obtain wood plastic composite dedicated weather-proof antimildew function master batch.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109081981A (en) * | 2018-06-29 | 2018-12-25 | 黄山美森新材料科技有限公司 | A kind of durable mildewproof plastic-wood composite material and preparation method |
| CN112143087A (en) * | 2020-09-14 | 2020-12-29 | 成都金发科技新材料有限公司 | Antibacterial and mildewproof automobile sound insulation material and preparation method thereof |
| CN113372641A (en) * | 2021-06-25 | 2021-09-10 | 苏州润步新材料有限公司 | High-light-fastness outdoor wood-plastic master batch and preparation method thereof |
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| CN101805525A (en) * | 2010-03-18 | 2010-08-18 | 上海心尔新材料科技股份有限公司 | Water absorption master batch for wood-plastic composite material and product and production method thereof |
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| CN101805525A (en) * | 2010-03-18 | 2010-08-18 | 上海心尔新材料科技股份有限公司 | Water absorption master batch for wood-plastic composite material and product and production method thereof |
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| 《精细与专用化学品》 20071221 冯静等 "木塑复合材料的霉腐真菌危害及防霉抗菌剂的应用进展" 6-9 1-3 第15卷, 第24期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081981A (en) * | 2018-06-29 | 2018-12-25 | 黄山美森新材料科技有限公司 | A kind of durable mildewproof plastic-wood composite material and preparation method |
| CN109081981B (en) * | 2018-06-29 | 2021-02-09 | 黄山美森新材料科技股份有限公司 | Durable mildew-proof plastic-wood composite material and preparation method thereof |
| CN112143087A (en) * | 2020-09-14 | 2020-12-29 | 成都金发科技新材料有限公司 | Antibacterial and mildewproof automobile sound insulation material and preparation method thereof |
| CN113372641A (en) * | 2021-06-25 | 2021-09-10 | 苏州润步新材料有限公司 | High-light-fastness outdoor wood-plastic master batch and preparation method thereof |
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