CN107189163A - A kind of halloysite nanotubes enhancing wood plastic composite and preparation method thereof - Google Patents
A kind of halloysite nanotubes enhancing wood plastic composite and preparation method thereof Download PDFInfo
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Abstract
Strengthen wood plastic composite the invention discloses a kind of halloysite nanotubes, its component includes by weight：50 90 parts of thermoplastic, 30 60 parts of natural wood powder, 5 15 parts of halloysite nanotubes, 20 30 parts of polymethyl methacrylate, fire retardant, 37 parts of lubricant, 5 20 parts of auxiliary agent；Wherein, the porosity of galapectite is 18 30% in halloysite nanotubes, and aperture is 3 40nm；The content of cellulose is in 2 5wt% in natural wood powder.The invention also discloses the preparation method that a kind of halloysite nanotubes strengthen wood plastic composite.The present invention uses halloysite nanotubes as reinforcement, cheap, abundance, with good biocompatibility, safety and environmental protection is again cost-effective, with the use of polymethyl methacrylate, improve toughness, the intensity and modulus of Wood-plastic material, the problem of efficiently solving Wood-plastic material creep rupture.
Description
Technical field
The present invention relates to wood plastic composite technical field, more particularly to a kind of halloysite nanotubes enhancing wood and plastic composite
Material and preparation method thereof
Background technology
The characteristics of wood plastic composite has timber and plastics concurrently, with good processing characteristics, good strength character simultaneously
And it is water-fast, corrosion-resistant, therefore many fields can as timber substitute, inexpensive and environmental protection has a good application prospect.
In recent years, wood plastic composite is increasingly paid close attention to by consumers in general, it be one kind using plastics as matrix, with wood powder or its
His string is a kind of composite of novel environment friendly of filler.Wood plastic composite applied in terms of building products compared with
To be extensive, account for the 75% of wood plastic composite total amount, be currently used primarily in colored boxboard, stool bar, sign board, structural wood, floor,
In terms of top plate, sound insulationg board, sun deck.
But wood plastic composite also has a limitation of itself, such as creep problem turn into its development important restriction it
One, when the creep of wood plastic composite reaches to a certain degree, material can be inherently broken, and there is potential safety hazard.It is domestic
Outer scholar has done many researchs for influence wood plastic composite creep factor problem, wherein most commonly seen method is compound
Addition enhancing component in material, CNT has excellent toughness and stable structure, and size is small, mechanical property is good, quilt
It is believed that be a kind of preferable composite material reinforcement body, but expensive, supply is limited, lack with biological toxicity etc.
Point.
Compared with CNT, halloysite nanotubes have nontoxic, good biocompatibility, cheap, next
The advantages of source is enriched, has been widely used in the multiple fields such as ceramics, medicine, catalysis, yet there are no halloysite nanotubes
Using the relevant report with wood plastic composite.
The content of the invention
The present invention proposes a kind of halloysite nanotubes enhancing wood plastic composite and preparation method thereof, is received using galapectite
Mitron is as reinforcement, while with the use of polymethyl methacrylate, the mechanical strength of wood plastic composite greatly improved,
The problem of efficiently solving wood plastic composite creep rupture, reduces production cost, and safety environment protecting energy saving is conducive to industry
Change.
A kind of halloysite nanotubes enhancing wood plastic composite proposed by the present invention, its component includes by weight：Thermoplastic
Property 50-90 parts of plastics, 30-60 parts of natural wood powder, 5-15 parts of halloysite nanotubes, 20-30 parts of polymethyl methacrylate, resistance
Fire 5-10 parts of agent, 3-7 parts of lubricant, 5-20 parts of auxiliary agent；
Wherein, the porosity of galapectite is 18-30% in halloysite nanotubes, and aperture is 3-40nm；In natural wood powder
The content of cellulose is in 2-5wt%.
In a particular embodiment, the parts by weight of thermoplastic can be 55,60,65,70,75,80,85；Natural wood
The parts by weight of powder can be 35,40,45,50,55；The parts by weight of halloysite nanotubes can for 5.5,6,7,7.5,8,8.5,9,
10、10.5、11、12、12.5、13、14、14.5；The parts by weight of polymethyl methacrylate can be 22,24,25,26,28；Resistance
The parts by weight for firing agent can be 6,7,8,8.5,9,9.5；The parts by weight of lubricant can be 4,5,5.5,6,6.5；The weight of auxiliary agent
It can be 6,7,8,9,10,11,12,13,14,15,16,17,18,19 to measure part.
Preferably, thermoplastic is more than one or both of polyethylene, polypropylene, polyvinyl chloride, makrolon
Mixture.
Preferably, thermoplastic is polyethylene and polyvinyl chloride.
Preferably, natural wood powder is one or both of wood powder, rice chaff, bamboo powder, stalk fibre powder, shell fiber powder
Thing mixed above, wherein, particle diameter is 30-100 mesh, and content of lignin is in more than 15wt%.
Preferably, a diameter of 30-75nm of halloysite nanotubes, length is 3-8 μm.
Preferably, lubricant be lubricant stearic acid salt, stearic acid, Tissuemat E, OPE in one kind or
Two or more mixtures.
Preferably, fire retardant is one or both of RDX fire retardants, TPP fire retardants, RDP fire retardants and BDP fire retardants
Thing mixed above.
Preferably, auxiliary agent is one or both of antiseptic, antioxidant, stabilizer thing mixed above.
Preferably, antiseptic is Chinese medicine antibacterial agent；Preferably, Chinese medicine antibacterial agent is in lopseed, Song Luo, radix ampelopsis, Chenopodium glaucum L.
One or more kinds of mixtures；
Preferably, antioxidant is more than the one or two kinds of in antioxidant 1098, antioxidant 626, antioxidant 1010 mixed
Compound；
Preferably, stabilizer is uvioresistant photo etching, hindered amine phenol light stabilizer, one kind in hindered amine as light stabilizer or two
Plant thing mixed above.
A kind of halloysite nanotubes proposed by the present invention strengthen the preparation method of wood plastic composite, comprise the following steps：
S1, thermoplastic, natural wood powder, lubricant, auxiliary agent add to by proportioning mixing machine is well mixed to be obtained
Premix；
S2, obtain mixture by premix and halloysite nanotubes, polymethyl methacrylate, fire retardant are well mixed
Material, mixing plasticizing is carried out by mixed material, wherein, melting temperature is 180-195 DEG C；
S3, will plasticizing after material thermocompression forming, cooling obtain halloysite nanotubes enhancing wood plastic composite, hot pressing temperature
For 185-190 DEG C, pressure is 10-20MPa.
Preferably, in S2, mixed material carries out mixing plasticizing in double rod plastics processing mills, and mixing time is 10-15min.
The present invention is using thermoplastic and natural wood powder as matrix, and the content of cellulose, is carried in reduction natural wood powder
The high content of lignin, it is ensured that the mechanical property of wood plastic composite, it is relatively low that lignin starts degradation temperature, and degraded temperature
Qu great, the formation of layer of charcoal is promoted when composite burns, and improves the fire resistance of material；Halloysite nanotubes are a kind of
Natural nanotube-shaped clay mineral, cheap, abundance, with good biocompatibility, safety and environmental protection is saved again
Cost；In addition, the hydroxyl and content of siloxane on halloysite nanotubes surface are relatively fewer, with hydrogen bond and Van der Waals between construction unit
The form of the secondary bonds such as power is combined, and is easily realized the dissociation of construction unit and is disperseed, it is not easy to reunites；Between nanotube, its
The appropriate tube-like condition of aspect ratio reduces the contact area between pipe, halloysite nanotubes is better dispersed in plastic substrate
In, the tensile strength of wood plastic composite is enhanced, the generation of creep is greatly reduced, safety in utilization, poly- methyl-prop is improved
E pioic acid methyl ester is used cooperatively with halloysite nanotubes, improves halloysite nanotubes dispersiveness, and each component is mixed, effectively carried well
Toughness, the intensity and modulus of high Wood-plastic material；The addition of the components such as antiseptic, antioxidant, stabilizer, further increases wood moulding
The stability of material, Chinese medicine antibacterial agent Environmental Safety is conducive to recycling.Preparation method of the present invention is simple and easy to control, saves life
Cost is produced, is conducive to area metaplasia to produce.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of halloysite nanotubes strengthen wood plastic composite, and its component includes by weight：Thermoplastic 50 part, day
Right 30 parts of wood powder, 15 parts of halloysite nanotubes, 30 parts of polymethyl methacrylate, 5 parts of fire retardant, 3 parts of lubricant, auxiliary agent 5
Part；
Wherein, the porosity of galapectite is 18% in halloysite nanotubes, and aperture is 3nm；Cellulose in natural wood powder
Content in 2wt%.
Embodiment 2
A kind of halloysite nanotubes strengthen wood plastic composite, and its component includes by weight：Thermoplastic 90 part, day
Right 60 parts of wood powder, 5 parts of halloysite nanotubes, 20 parts of polymethyl methacrylate, 10 parts of fire retardant, 7 parts of lubricant, auxiliary agent 20
Part；
Wherein, the porosity of galapectite is 30% in halloysite nanotubes, and aperture is 40nm；Cellulose in natural wood powder
Content in 5wt%.
Embodiment 3
A kind of halloysite nanotubes strengthen wood plastic composite, and its component includes by weight：Thermoplastic 80 part, day
Right 50 parts of wood powder, 10 parts of halloysite nanotubes, 25 parts of polymethyl methacrylate, 8 parts of fire retardant, 5 parts of lubricant, auxiliary agent 10
Part；
Wherein, the porosity of galapectite is 20% in halloysite nanotubes, and aperture is 15nm；Cellulose in natural wood powder
Content in 3wt%；Natural wood powder is wood powder, and particle diameter is 30 mesh, and content of lignin is in 20wt%；Thermoplastic is poly- second
Alkene, polypropylene.
Embodiment 4
A kind of halloysite nanotubes strengthen wood plastic composite, and its component includes by weight：Thermoplastic 70 part, day
Right 40 parts of wood powder, 12 parts of halloysite nanotubes, 25 parts of polymethyl methacrylate, 9 parts of fire retardant, 5 parts of lubricant, auxiliary agent 15
Part；
Wherein, the porosity of galapectite is 20% in halloysite nanotubes, and aperture is 30nm, the diameter of halloysite nanotubes
For 30nm, length is 3 μm；The content of cellulose is in 2wt% in natural wood powder, and natural wood powder is wood powder and bamboo powder, particle diameter
For 100 mesh, content of lignin is in 30wt%；Thermoplastic is polyethylene, polypropylene, polyvinyl chloride；Fire retardant is that RDX is fire-retardant
Agent；Auxiliary agent is antiseptic, antioxidant, stabilizer；
Halloysite nanotubes enhancing wood plastic composite is made by following steps：
S1, thermoplastic, natural wood powder, lubricant, auxiliary agent add to by proportioning mixing machine is well mixed to be obtained
Premix；
S2, obtain mixture by premix and halloysite nanotubes, polymethyl methacrylate, fire retardant are well mixed
Material, mixing plasticizing is carried out by mixed material, wherein, melting temperature is 180 DEG C；
S3, will plasticizing after material thermocompression forming, cooling obtain halloysite nanotubes enhancing wood plastic composite, hot pressing temperature
For 185 DEG C, pressure is 10MPa.
Embodiment 5
A kind of halloysite nanotubes strengthen wood plastic composite, and its component includes by weight：Thermoplastic 55 part, day
Right 45 parts of wood powder, 12 parts of halloysite nanotubes, 22 parts of polymethyl methacrylate, 8 parts of fire retardant, 4 parts of lubricant, auxiliary agent 15
Part；
Wherein, the porosity of galapectite is 25% in halloysite nanotubes, and aperture is 40nm, the diameter of halloysite nanotubes
For 75nm, length is 8 μm；Natural wood powder is wood powder, bamboo powder, stalk fibre powder, and particle diameter is 100 mesh, and content of lignin exists
30wt%, the content of cellulose is in 2wt%；Thermoplastic is polyethylene, polypropylene, polyvinyl chloride and makrolon；Lubrication
Agent is lubricant stearic acid salt, stearic acid；Fire retardant is RDX fire retardants, TPP fire retardants；Auxiliary agent is lopseed, Song Luo, antioxygen
Agent 1098, uvioresistant photo etching；
Halloysite nanotubes enhancing wood plastic composite is made by following steps：
S1, thermoplastic, natural wood powder, lubricant, auxiliary agent add to by proportioning mixing machine is well mixed to be obtained
Premix；
S2, obtain mixture by premix and halloysite nanotubes, polymethyl methacrylate, fire retardant are well mixed
Material, mixing plasticizing is carried out by mixed material in double rod plastics processing mills, wherein, melting temperature is 195 DEG C, and mixing time is 10min；
S3, will plasticizing after material thermocompression forming, cooling obtain halloysite nanotubes enhancing wood plastic composite, hot pressing temperature
For 190 DEG C, pressure is 20MPa.
Embodiment 6
A kind of halloysite nanotubes strengthen wood plastic composite, and its component includes by weight：Thermoplastic 55 part, day
Right 45 parts of wood powder, 12 parts of halloysite nanotubes, 22 parts of polymethyl methacrylate, 8 parts of fire retardant, 4 parts of lubricant, auxiliary agent 15
Part；
Wherein, the porosity of galapectite is 25% in halloysite nanotubes, and aperture is 40nm, the diameter of halloysite nanotubes
For 75nm, length is 8 μm；Natural wood powder is wood powder, bamboo powder, stalk fibre powder, and particle diameter is 100 mesh, and content of lignin exists
30wt%, the content of cellulose is in 2wt%；Thermoplastic is polyethylene, polypropylene, polyvinyl chloride and makrolon；Lubrication
Agent is lubricant stearic acid salt, stearic acid；Fire retardant is RDX fire retardants, TPP fire retardants；Auxiliary agent be lopseed, Song Luo, radix ampelopsis,
Chenopodium glaucum L., antioxidant 1098, antioxidant 626, antioxidant 1010, uvioresistant photo etching, hindered amine phenol light stabilizer and hindered amine light are steady
Determine agent；
Halloysite nanotubes enhancing wood plastic composite is made by following steps：
S1, thermoplastic, natural wood powder, lubricant, auxiliary agent add to by proportioning mixing machine is well mixed to be obtained
Premix；
S2, obtain mixture by premix and halloysite nanotubes, polymethyl methacrylate, fire retardant are well mixed
Material, mixing plasticizing is carried out by mixed material in double rod plastics processing mills, wherein, melting temperature is 190 DEG C, and mixing time is 15min；
S3, will plasticizing after material thermocompression forming, cooling obtain halloysite nanotubes enhancing wood plastic composite, hot pressing temperature
For 195 DEG C, pressure is 15MPa.
Reference examples
A kind of wood plastic composite, its component includes by weight：It is 55 parts of thermoplastic, 45 parts of natural wood powder, poly-
22 parts of methyl methacrylate, 8 parts of fire retardant, 4 parts of lubricant, 15 parts of auxiliary agent；
Natural wood powder is wood powder, bamboo powder, stalk fibre powder, and particle diameter is 100 mesh, and content of lignin is in 30wt%, fiber
The content of element is in 2wt%；Thermoplastic is polyethylene, polypropylene, polyvinyl chloride and makrolon；Lubricant is that lubricant is hard
Resin acid salt, stearic acid；Fire retardant is RDX fire retardants, TPP fire retardants；Auxiliary agent is lopseed, Song Luo, radix ampelopsis, Chenopodium glaucum L., antioxidant
1098th, antioxidant 626, antioxidant 1010, uvioresistant photo etching, hindered amine phenol light stabilizer and hindered amine as light stabilizer；
Halloysite nanotubes enhancing wood plastic composite is made by following steps：
S1, thermoplastic, natural wood powder, lubricant, auxiliary agent add to by proportioning mixing machine is well mixed to be obtained
Premix；
S2, obtain mixed material by premix and polymethyl methacrylate, fire retardant are well mixed, mixed material is existed
Double rod plastics processing mills carry out mixing plasticizing, wherein, melting temperature is 190 DEG C, and mixing time is 15min；
S3, will plasticizing after material thermocompression forming, cooling obtain halloysite nanotubes enhancing wood plastic composite, hot pressing temperature
For 195 DEG C, pressure is 15MPa.
Wood moulding described in halloysite nanotubes enhancing wood plastic composite and reference examples described in above-described embodiment 3-6 is answered
Condensation material carries out performance test, as a result as follows：
| Performance | Impact strength/(kJ/m2) | Bending modulus/MPa | Bending strength/MPa |
| Embodiment 3 | 55.56 | 3597 | 48.97 |
| Embodiment 4 | 55.31 | 3687 | 59.87 |
| Embodiment 5 | 54.41 | 3846 | 60.12 |
| Embodiment 6 | 56.40 | 3794 | 59.14 |
| Reference examples | 12.57 | 2541 | 32.54 |
From test data as can be seen that present invention addition galapectite nanometer, collocation polymethyl methacrylate is used, significantly
The mechanical property of composite is improved, impact strength reaches 56.40MPa, and maximum deflection modulus is 3846MPa, maximum deflection
Intensity is 60.12MPa, meets actual operation requirements, has saved production cost, environmental protection and energy saving.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (10)
1. a kind of halloysite nanotubes strengthen wood plastic composite, it is characterised in that its component includes by weight：Thermoplasticity is moulded
50-90 parts of material, 30-60 parts of natural wood powder, 5-15 parts of halloysite nanotubes, 20-30 parts of polymethyl methacrylate, fire retardant
5-10 parts, 3-7 parts of lubricant, 5-20 parts of auxiliary agent；
Wherein, the porosity of galapectite is 18-30% in halloysite nanotubes, and aperture is 3-40nm；Fiber in natural wood powder
The content of element is in 2-5wt%.
2. halloysite nanotubes according to claim 1 strengthen wood plastic composite, it is characterised in that thermoplastic is
One or both of polyethylene, polypropylene, polyvinyl chloride, makrolon thing mixed above；Preferably, thermoplastic is poly-
Ethene and polyvinyl chloride.
3. halloysite nanotubes according to claim 1 strengthen wood plastic composite, it is characterised in that natural wood powder is
One or both of wood powder, rice chaff, bamboo powder, stalk fibre powder, shell fiber powder thing mixed above, wherein, particle diameter is 30-
100 mesh, content of lignin is in more than 15wt%.
4. halloysite nanotubes according to claim 1 strengthen wood plastic composite, it is characterised in that halloysite nanotubes
A diameter of 30-75nm, length be 3-8 μm.
5. halloysite nanotubes according to claim 1 strengthen wood plastic composite, it is characterised in that lubricant is lubrication
One or both of agent stearate, stearic acid, Tissuemat E, OPE thing mixed above.
6. halloysite nanotubes according to claim 1 strengthen wood plastic composite, it is characterised in that fire retardant is RDX
One or both of fire retardant, TPP fire retardants, RDP fire retardants and BDP fire retardants thing mixed above.
7. halloysite nanotubes according to claim 1 strengthen wood plastic composite, it is characterised in that auxiliary agent is antibacterial
One or both of agent, antioxidant, stabilizer thing mixed above.
8. halloysite nanotubes according to claim 7 strengthen wood plastic composite, it is characterised in that antiseptic is Chinese medicine
Antiseptic；Preferably, Chinese medicine antibacterial agent is one or both of lopseed, Song Luo, radix ampelopsis, Chenopodium glaucum L. thing mixed above；
Antioxidant is the one or two kinds of thing mixed above in antioxidant 1098, antioxidant 626, antioxidant 1010；
Stabilizer is that one or both of uvioresistant photo etching, hindered amine phenol light stabilizer, hindered amine as light stabilizer are mixed above
Thing.
9. a kind of halloysite nanotubes according to claim any one of 1-8 strengthen the preparation method of wood plastic composite,
It is characterised in that it includes following steps：
S1, thermoplastic, natural wood powder, lubricant, auxiliary agent add to by proportioning mixing machine is well mixed to be premixed
Material；
S2, obtain mixed material by premix and halloysite nanotubes, polymethyl methacrylate, fire retardant are well mixed, will
Mixed material carries out mixing plasticizing, wherein, melting temperature is 180-195 DEG C；
S3, will material thermocompression forming after plasticizing, cooling obtains halloysite nanotubes enhancing wood plastic composite, and hot pressing temperature is
185-195 DEG C, pressure is 10-20MPa.
10. halloysite nanotubes according to claim 9 strengthen the preparation method of wood plastic composite, it is characterised in that
In S2, mixed material carries out mixing plasticizing in double rod plastics processing mills, and mixing time is 10-15min.
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| CN112646302A (en) * | 2020-12-21 | 2021-04-13 | 无锡贝特塑料电器有限公司 | Environment-friendly high-weather-resistance PP composite material and preparation method thereof |
| CN113717488A (en) * | 2021-09-06 | 2021-11-30 | 桃江县大丰木业有限责任公司 | Smoke-inhibiting flame-retardant wood composite material and preparation method thereof |
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