CN104356618B - A kind of biomass wood plastic composite for 3D printing and preparation method thereof - Google Patents

A kind of biomass wood plastic composite for 3D printing and preparation method thereof Download PDF

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Publication number
CN104356618B
CN104356618B CN201410587283.4A CN201410587283A CN104356618B CN 104356618 B CN104356618 B CN 104356618B CN 201410587283 A CN201410587283 A CN 201410587283A CN 104356618 B CN104356618 B CN 104356618B
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deg
part
district
described
plastic composite
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CN201410587283.4A
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CN104356618A (en
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蔡建臣
王世坚
周兆忠
蒋金云
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衢州学院
福建省再森木塑科技有限公司
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Abstract

The invention provides a kind of for 3D print biomass wood plastic composite, it is characterized in that, the component of this matrix material and the mass fraction of each component as follows: PLA30-60 part; UHMWPE6-10 part; Wood powder, bamboo powder or powdered rice hulls 10-40 part; Paper pulp 10-20 part; Compatilizer 1-4 part; Coupling agent 1-3 part; Cenosphere 5-10 part; Lubricant 1-3 part; Oxidation inhibitor 0.5-2 part; Toughner 1-3 part.This matrix material low-carbon environment-friendly, can very recycle by circulation and stress, there is the natural friendliness of timber, natural wood aromatic odour can be produced when printing, good stability of the dimension, not plug-hole, non-warpage, processing conditions require low, and goods have the weathering resistancies such as good physical and mechanical properties and acid and alkali-resistance, Anti-moth-eating, ultraviolet-resistent property ability are strong.

Description

A kind of biomass wood plastic composite for 3D printing and preparation method thereof

Technical field

The present invention relates to a kind of 3D printing consumables, be specially a kind of biomass wood plastic composite and preparation method thereof.

Background technology

There is existing more than 20 year history so far in 3D printing technique, this technology, based on discrete-accumulation principle, is the increasing material manufacturing technology of a kind of advanced person.The materials such as PLA, ABS, PVA that current existing 3D printing consumables is mainly single, but above material all also exists the limitation of self, and the cost of PLA material is higher, material just easily distortion more than 55 DEG C, easy occluding device nozzle; ABS material to temperature and shearing rate more responsive, in the course of processing, smell is heavy, yielding and weathering resistance is poor; And PVA water-soluble material is mainly used in printing support type material, consumption is few, and can produce toxic gas when PVA decomposes.In a word, widely used 3D printing consumables has the shortcomings such as price is high, energy consumption is high, the complicated harshness of processing conditions requirement, difficulty are shaping, easy fracture in the market.

Therefore, need to find a kind of 3D printing consumables, it is not only cheap, green low-carbon environment-friendly, good stability of the dimension, intensity is high, to have in the course of processing not plug-hole, not fracture of wire, without advantages such as buckling deformations, and the goods produced have good physical and mechanical properties and weathering resistance.

Summary of the invention

For the problem existing for above-mentioned prior art, the object of this invention is to provide a kind of cheap, low-carbon environment-friendly, can very recycle by circulation and stress, there is the natural friendliness of timber, natural wood aromatic odour can be produced when printing, good stability of the dimension, not plug-hole, non-warpage, processing conditions require low, and goods have 3D printing consumables of the weathering resistancies such as good physical and mechanical properties and acid and alkali-resistance, Anti-moth-eating, ultraviolet-resistent property ability are strong and preparation method thereof.

For achieving the above object, the technical solution adopted in the present invention is:

For 3D print a biomass wood plastic composite, it is characterized in that, the component of this matrix material and the mass fraction of each component as follows: PLA30-60 part; UHMWPE6-10 part; Paper pulp 10-20 part; Wood powder, bamboo powder or powdered rice hulls 10-40 part; Compatilizer 1-4 part; Coupling agent 1-3 part; Cenosphere 5-10 part; Lubricant 1-3 part; Oxidation inhibitor 0.5-2 part; Toughner 1-3 part.

Further, described PLA to be melting index be 5 poly(lactic acid).

Further, described UHMWPE be viscosity-average molecular weight higher than 2,000,000 ultrahigh molecular weight polyethylene(UHMWPE).

Further, the particle diameter of described wood powder, bamboo powder or powdered rice hulls is more than 200 orders.

Further, the particle diameter of described cenosphere is more than 1000 orders.

Further, the particle diameter of described paper pulp is more than 200 orders.

Further, described compatilizer is maleic anhydride graft PLA compatilizer; Described coupling agent is the one in Aluminate, titanic acid ester; Described lubricant is two or more the mixture in paraffin, polyethylene wax, ethylene bis stearic acid amide, ethylene-acrylic acid copolymer, stearic acid, Zinic stearas; Described oxidation inhibitor is composite antioxidant, and composite antioxidant is by antioxidant 1010 and oxidation inhibitor 215 is composite forms; Described toughner is poly-(adipic acid-succinic acid) butanediol copolyester.

Present invention also offers a kind of preparation method of the biomass wood plastic composite for 3D printing, it is characterized in that the concrete steps of the method are as follows:

1) wood powder, bamboo powder or powdered rice hulls to be put in microwave dryer with the temperature of 80 DEG C-100 DEG C dry more than 1 hour, make its water content be down to less than 3%;

2) wood powder drying obtained, bamboo powder or powdered rice hulls and paper pulp, cenosphere, coupling agent join in high-speed mixer and carry out activation treatment, and fully mixing 5-10 minute, obtains mixture;

3) by step 2) in the mixture that obtains join in duoble cone-type blender with PLA, UHMWPE, compatilizer, lubricant, oxidation inhibitor, toughner and mix 20-30 minute to being uniformly dispersed, obtain Preblend;

4) Preblend mixed joined in planetary-screw tablets press and carry out extruding pelletization, wherein planetary-screw tablets press barrel heat temperature in each district from charging opening to head is followed successively by: 150 DEG C, a district ~ 180 DEG C, 180 DEG C ~ 200 DEG C, 2nd district, 170 DEG C ~ 230 DEG C, 3rd district, 160 DEG C ~ 190 DEG C, 4th district;

5) by step 4) obtained particulate material joins in conical double screw extruder and carries out extruding wire drawing, and the diameter controlling silk material is 1.75mm; Wherein conical double screw extruder barrel heat temperature in each district from charging opening to head is followed successively by: 150 DEG C, a district ~ 170 DEG C, 180 DEG C ~ 200 DEG C, 2nd district, 170 DEG C ~ 200 DEG C, 3rd district, 160 DEG C ~ 170 DEG C, 4th district;

6) described silk material is entered wire reel after being cooled by tank and is wound into finished product.

Beneficial effect of the present invention: biomass wood plastic composite for 3D printing of the present invention and preparation method thereof has the following advantages:

1) add wood powder, bamboo powder or powdered rice hulls in component, make goods have the feature of timber, namely there is the fragrance of timber, can follow closely, can bore, can dig, can japanning;

2) add UHMWPE in component, it has extremely strong self lubricity and fluidity of molten, such that the 3D print procedure of goods is smooth and easy to carry out, and can not block the nozzle of printing device, improve the working efficiency of equipment and the qualification rate of goods; In addition, UHMWPE has excellent wear resistance, and the anti-wear energy of goods of printing is good, not easily scratches;

3) add paper pulp in component, these raw material sources are wide, easily reclaim, easily degrade, therefore with low cost; And length-to-diameter ratio is large, can significantly improve dimensional stability and the mechanical property of product;

4) in matrix material preparation process, according to the physicals of different components, select different mixing equipment to mix at twice, be conducive to the surface active of wood powder and inorganics, improve the interface compatibility of material;

5) adopt planetary-screw tablets press to carry out the extruding pelletization of material, in planetary-screw tablets press material dispersion evenly, plasticizing is more abundant, thus can obtain homogeneous feed particulate material.

Embodiment

Embodiment one

Take 40 part of 250 object wood powder by mass fraction, put into microwave dryer interior with the temperature of 90 DEG C drying 1.5 hours, make its water content be down to 3%; 40 parts of wood powders drying obtained, 15 parts of paper pulp, 5 part of 1000 object cenosphere, 3 parts of titanate coupling agents join in high-speed mixer and carry out activation treatment, and fully mixing 10 minutes, obtains mixture; The lubricant of the UHMWPE that the PLA being 5 by said mixture, melting index, viscosity-average molecular weight are 2,100,000, the mixing of 3 parts of maleic anhydride graft PLA compatilizers, 2 parts of polyethylene waxs and ethylene bis stearic acid amides, 1 part to be joined in duoble cone-type blender by antioxidant 1010 and the composite composite antioxidant that forms of oxidation inhibitor 215 and 1 part of poly-(adipic acid-succinic acid) butanediol copolyester toughner and mix 30 minutes to being uniformly dispersed, obtain Preblend; The Preblend mixed joined in planetary-screw tablets press and carry out extruding pelletization, wherein planetary-screw tablets press barrel heat temperature in each district from charging opening to head is followed successively by: 170 DEG C, a district, 190 DEG C, 2nd district, 200 DEG C, 3rd district, 180 DEG C, 4th district; Above-mentioned obtained particulate material joined in conical double screw extruder and carry out extruding wire drawing, the diameter controlling silk material is 1.75mm; Wherein conical double screw extruder barrel heat temperature in each district from charging opening to head is followed successively by: 150 DEG C, a district, 190 DEG C, 2nd district, 180 DEG C, 3rd district, 170 DEG C, 4th district; Enter wire reel after being cooled by tank by described silk material and be wound into finished product.

Embodiment two

Take 30 part of 250 object bamboo powder by mass fraction, put into microwave dryer interior with the temperature of 90 DEG C drying 1 hour, make its water content be down to 2.5%; 30 parts of bamboo powder drying obtained, 20 parts of paper pulp, 5 part of 1000 object cenosphere, 3 parts of aluminate coupling agents join in high-speed mixer and carry out activation treatment, and fully mixing 10 minutes, obtains mixture; Be the PLA of 5 by said mixture, melting index, viscosity-average molecular weight be 2,100,000,3 parts of maleic anhydride graft PLA compatilizers, 2 parts of paraffin, polyethylene wax and stearic acid mixing lubricant, 1 part to be joined in duoble cone-type blender by antioxidant 1010 and the composite composite antioxidant that forms of oxidation inhibitor 215 and 1 part of poly-(adipic acid-succinic acid) butanediol copolyester toughner and mix 30 minutes to being uniformly dispersed, obtain Preblend; The Preblend mixed joined in planetary-screw tablets press and carry out extruding pelletization, wherein planetary-screw tablets press barrel heat temperature in each district from charging opening to head is followed successively by: 160 DEG C, a district, 190 DEG C, 2nd district, 210 DEG C, 3rd district, 170 DEG C, 4th district; Above-mentioned obtained particulate material joined in conical double screw extruder and carry out extruding wire drawing, the diameter controlling silk material is 3mm; Wherein conical double screw extruder barrel heat temperature in each district from charging opening to head is followed successively by: 160 DEG C, a district, 190 DEG C, 2nd district, 170 DEG C, 3rd district, 160 DEG C, 4th district; Enter wire reel after being cooled by tank by described silk material and be wound into finished product.

What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it is all encompassed in the middle of right of the present invention.

Claims (5)

1., for a preparation method for the biomass wood plastic composite of 3D printing, it is characterized in that the concrete steps of the method are as follows:
1) wood powder, bamboo powder or powdered rice hulls are put into the temperature of 80 DEG C-100 DEG C drying more than 1 hour in microwave dryer, make its water content be down to less than 3%, the particle diameter of described wood powder, bamboo powder or powdered rice hulls is more than 200 orders;
2) wood powder drying obtained, bamboo powder or powdered rice hulls and paper pulp, cenosphere, coupling agent join in high-speed mixer and carry out activation treatment, and fully mixing 5-10 minute, obtains mixture;
3) by step 2) in the mixture that obtains join in duoble cone-type blender with PLA, UHMWPE, compatilizer, lubricant, oxidation inhibitor, toughner and mix 20-30 minute to being uniformly dispersed, obtain Preblend, described PLA to be melting index be 5 poly(lactic acid);
4) Preblend mixed joined in planetary-screw tablets press and carry out extruding pelletization, wherein planetary-screw tablets press barrel heat temperature in each district from charging opening to head is followed successively by: 150 DEG C, a district ~ 180 DEG C, 180 DEG C ~ 200 DEG C, 2nd district, 170 DEG C ~ 230 DEG C, 3rd district, 160 DEG C ~ 190 DEG C, 4th district;
5) by step 4) obtained particulate material joins in conical double screw extruder and carries out extruding wire drawing, and the diameter controlling silk material is 1.75mm or 3mm; Wherein conical double screw extruder barrel heat temperature in each district from charging opening to head is followed successively by: 150 DEG C, a district ~ 170 DEG C, 180 DEG C ~ 200 DEG C, 2nd district, 170 DEG C ~ 200 DEG C, 3rd district, 160 DEG C ~ 170 DEG C, 4th district;
6) described silk material is entered wire reel after being cooled by tank and is wound into finished product;
Wherein, the component of this matrix material and the mass fraction of each component as follows: PLA30-60 part; UHMWPE6-10 part; Wood powder, bamboo powder or powdered rice hulls 10-40 part; Paper pulp 10-20 part; Compatilizer 1-4 part; Coupling agent 1-3 part; Cenosphere 5-10 part; Lubricant 1-3 part; Oxidation inhibitor 0.5-2 part; Toughner 1-3 part.
2. the preparation method of biomass wood plastic composite printed for 3D according to claim 1, is characterized in that: described UHMWPE be viscosity-average molecular weight higher than 2,000,000 ultrahigh molecular weight polyethylene(UHMWPE).
3. the preparation method of the biomass wood plastic composite for 3D printing according to claim 1, is characterized in that: the particle diameter of described cenosphere is more than 1000 orders.
4. the preparation method of the biomass wood plastic composite for 3D printing according to claim 1, is characterized in that: the particle diameter of described paper pulp is more than 200 orders.
5. the preparation method of the biomass wood plastic composite for 3D printing according to claim 1, is characterized in that: described compatilizer is maleic anhydride graft PLA compatilizer; Described coupling agent is the one in Aluminate, titanic acid ester; Described lubricant is two or more the mixture in paraffin, polyethylene wax, ethylene bis stearic acid amide, ethylene-acrylic acid copolymer, stearic acid, Zinic stearas; Described oxidation inhibitor is composite antioxidant, by antioxidant 1010 with oxidation inhibitor 215 is composite forms; Described toughner is poly-(adipic acid-succinic acid) butanediol copolyester.
CN201410587283.4A 2014-10-29 2014-10-29 A kind of biomass wood plastic composite for 3D printing and preparation method thereof CN104356618B (en)

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