CN104845395A - Wood plastic composite material for decoration, and preparation method thereof - Google Patents
Wood plastic composite material for decoration, and preparation method thereof Download PDFInfo
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- CN104845395A CN104845395A CN201510186359.7A CN201510186359A CN104845395A CN 104845395 A CN104845395 A CN 104845395A CN 201510186359 A CN201510186359 A CN 201510186359A CN 104845395 A CN104845395 A CN 104845395A
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Abstract
The invention belongs to the field of wood plastic composite materials, and discloses a wood plastic composite material for decoration, and a preparation method thereof. The wood plastic composite material comprises polyurethane, polyisobutylene, polypropylene, polyvinylidene chloride, elm sawdust, beech wood shavings, a KH570 coupling agent and ethylene propylene rubber. The preparation method of the wood plastic composite material comprises the following steps: 1, drying the elm sawdust and the beech wood shavings, and crushing; 2, starting a high speed mixer, adding the above raw materials in a flow state into the high speed mixer according to weight proportions, and uniformly mixing; and 3, mechanically extruding the obtained wood plastic raw material mixture in a twin-screw extrusion mode to obtain the wood plastic composite material.
Description
Technical field
The invention belongs to field of compound material, relate to a kind of Wood-plastic material and preparation method thereof, particularly relate to a kind of decoration wood plastic composite and preparation method thereof.
Background technology
Use wood powder or vegetable fibre superelevation share to fill thermoplast or thermoplasticity reworked material, be correlated with thickening and compatible modifier in adding portion simultaneously, and make sheet material through extrusion moulding, section bar, tubing substitutes corresponding woodwork.The advantages such as wood plastic product, except the advantage with wood working, also has intensity high, anticorrosion, insect protected, damp proof, long service life, reusable.Wood plastic composite has wider application in furniture, tables, chairs and benches, sofa, bed cabinet, bookshelf, clothes case, tea table, frame.
Wood plastic composite also has very wide use in building industry, and at movable dwellings, window frame, door-plate, door is ragged, concrete form, stair are clapped hands, wall, ceiling and various profiled material, applies more in floor.Wood plastic composite also has very many application in corrosion resistant builder's temporary shed, decorative sheet, floor, passage, stand and foundry pattern, bonnet, water pump shell, electrical equipment material etc. in addition.
Summary of the invention
The technical problem solved: not only have macromolecular material in ornamental matrix material, also there are some matrix materials simultaneously, such as, material after timber and polymer being combined, the flexural strength of conventional wood plastic composite is lower, expansion rate of water absorption is larger, its can not be applicable to decorate in use, therefore need a kind of decoration wood plastic composite and preparation method thereof possessed compared with high bending strength and lower expansion rate of water absorption.
Technical scheme: the invention discloses a kind of decoration wood plastic composite, described decoration wood plastic composite comprises the composition of following weight part:
Urethane 14-22 part,
Polyisobutene 13-24 part,
Polypropylene 5-10 part,
Polyvinylidene chloride 6-14 part,
Elm sawdust 30-45 part,
Beech wood shavings 13-20 part,
Ethylene-propylene rubber(EPR) 4-8 part,
KH570 silane coupling agent 2-4 part.
Further, described one decoration wood plastic composite, comprises the composition of following weight part:
Urethane 16-20 part,
Polyisobutene 15-21 part,
Polypropylene 6-9 part,
Polyvinylidene chloride 8-12 part,
Elm sawdust 34-40 part,
Beech wood shavings 15-18 part,
Ethylene-propylene rubber(EPR) 5-7 part,
KH570 silane coupling agent 2-3 part.
Decorate the preparation method with wood plastic composite, the preparation method of described wood plastic composite is as follows:
(1) after collecting elm sawdust and beech wood shavings, elm sawdust and beech wood shavings are carried out drying, being dried to moisture content in elm sawdust and beech wood shavings is 3%-6%, then elm sawdust and beech wood shavings is pulverized, for subsequent use after pulverizing;
(2) high-speed mixer is opened, urethane 14-22 part of flow state, polyisobutene 13-24 part, polypropylene 5-10 part, polyvinylidene chloride 6-14 part, ethylene-propylene rubber(EPR) 4-8 part is added by weight in high-speed mixer, abundant mixing, drop into the elm sawdust 30-45 part after pulverizing, beech wood shavings 13-20 part again, again after mixing, add KH570 silane coupling agent 2-4 part again, Homogeneous phase mixing;
(3) wood is moulded mixing raw material and carry out mechanical presses, fashion of extrusion is twin-screw extruder, during twin-screw extruder, each phase temperature is respectively: first stage temperature is 170-180 DEG C, subordinate phase temperature is 190-195 DEG C, phase III temperature is 200-210 DEG C, fourth stage temperature is 215-220 DEG C, and the length-to-diameter ratio of twin screw extruder is 30:1-20:1, obtains wood plastic composite after twin-screw extrusion.
Further, being dried to moisture content in elm sawdust and beech wood shavings in described a kind of preparation method decorated with wood plastic composite is 4%-5%.
Further, in described a kind of preparation method decorated with wood plastic composite, the length-to-diameter ratio of twin screw extruder is 30:1.
Further, in described a kind of preparation method decorated with wood plastic composite, urethane is 16-20 part, polyisobutene is 15-21 part, polypropylene is 6-9 part, polyvinylidene chloride is 8-12 part, elm sawdust is 34-40 part, beech wood shavings are 15-18 part, ethylene-propylene rubber(EPR) is 5-7 part, KH570 silane coupling agent is 2-3 part.
Beneficial effect: elm sawdust and beech wood shavings are as common wood-curing waste, majority is processed by modes such as burnings, destroy environment to a certain extent, elm sawdust and beech wood shavings and macromolecule resin are effectively cross-linked by technical scheme of the present invention, improve the flexural strength of the wood plastic composite that it is prepared, reduce the expansion rate of water absorption of the wood plastic composite of preparation, the wood plastic composite of preparation can be effective in decoration industry, meets the service requirements under varying environment.
Embodiment
Embodiment 1
(1) after collecting elm sawdust and beech wood shavings, elm sawdust and beech wood shavings are carried out drying, being dried to moisture content in elm sawdust and beech wood shavings is 6%, then elm sawdust and beech wood shavings is pulverized, for subsequent use after pulverizing; (2) high-speed mixer is opened, the urethane 14 parts of flow state, polyisobutene 24 parts, polypropylene 10 parts, polyvinylidene chloride 6 parts, 8 parts, ethylene-propylene rubber(EPR) is added by weight in high-speed mixer, abundant mixing, drop into 45 parts, elm sawdust, beech wood shavings 13 parts after pulverizing again, again after mixing, add KH570 silane coupling agent 4 parts again, Homogeneous phase mixing; (3) wood is moulded mixing raw material and carry out mechanical presses, fashion of extrusion is twin-screw extruder, during twin-screw extruder, each phase temperature is respectively: first stage temperature is 170 DEG C, subordinate phase temperature is 195 DEG C, phase III temperature is 210 DEG C, fourth stage temperature is 220 DEG C, and the length-to-diameter ratio of twin screw extruder is 20:1, obtains wood plastic composite after twin-screw extrusion.
Embodiment 2
(1) after collecting elm sawdust and beech wood shavings, elm sawdust and beech wood shavings are carried out drying, being dried to moisture content in elm sawdust and beech wood shavings is 3%, then elm sawdust and beech wood shavings is pulverized, for subsequent use after pulverizing; (2) high-speed mixer is opened, the urethane 22 parts of flow state, polyisobutene 13 parts, polypropylene 5 parts, polyvinylidene chloride 14 parts, 4 parts, ethylene-propylene rubber(EPR) is added by weight in high-speed mixer, abundant mixing, drop into 30 parts, elm sawdust, beech wood shavings 20 parts after pulverizing again, again after mixing, add KH570 silane coupling agent 2 parts again, Homogeneous phase mixing; (3) wood is moulded mixing raw material and carry out mechanical presses, fashion of extrusion is twin-screw extruder, during twin-screw extruder, each phase temperature is respectively: first stage temperature is 180 DEG C, subordinate phase temperature is 190 DEG C, phase III temperature is 200 DEG C, fourth stage temperature is 215 DEG C, and the length-to-diameter ratio of twin screw extruder is 30:1, obtains wood plastic composite after twin-screw extrusion.
Embodiment 3
(1) after collecting elm sawdust and beech wood shavings, elm sawdust and beech wood shavings are carried out drying, being dried to moisture content in elm sawdust and beech wood shavings is 4%, then elm sawdust and beech wood shavings is pulverized, for subsequent use after pulverizing; (2) high-speed mixer is opened, the urethane 16 parts of flow state, polyisobutene 21 parts, polypropylene 9 parts, polyvinylidene chloride 12 parts, 5 parts, ethylene-propylene rubber(EPR) is added by weight in high-speed mixer, abundant mixing, drop into 34 parts, elm sawdust, beech wood shavings 18 parts after pulverizing again, again after mixing, add KH570 silane coupling agent 3 parts again, Homogeneous phase mixing; (3) wood is moulded mixing raw material and carry out mechanical presses, fashion of extrusion is twin-screw extruder, during twin-screw extruder, each phase temperature is respectively: first stage temperature is 175 DEG C, subordinate phase temperature is 190 DEG C, phase III temperature is 205 DEG C, fourth stage temperature is 215 DEG C, and the length-to-diameter ratio of twin screw extruder is 25:1, obtains wood plastic composite after twin-screw extrusion.
Embodiment 4
(1) after collecting elm sawdust and beech wood shavings, elm sawdust and beech wood shavings are carried out drying, being dried to moisture content in elm sawdust and beech wood shavings is 5%, then elm sawdust and beech wood shavings is pulverized, for subsequent use after pulverizing; (2) high-speed mixer is opened, the urethane 20 parts of flow state, polyisobutene 15 parts, polypropylene 6 parts, polyvinylidene chloride 8 parts, 7 parts, ethylene-propylene rubber(EPR) is added by weight in high-speed mixer, abundant mixing, drop into 40 parts, elm sawdust, beech wood shavings 15 parts after pulverizing again, again after mixing, add KH570 silane coupling agent 2 parts again, Homogeneous phase mixing; (3) wood is moulded mixing raw material and carry out mechanical presses, fashion of extrusion is twin-screw extruder, during twin-screw extruder, each phase temperature is respectively: first stage temperature is 180 DEG C, subordinate phase temperature is 190 DEG C, phase III temperature is 210 DEG C, fourth stage temperature is 215 DEG C, and the length-to-diameter ratio of twin screw extruder is 25:1, obtains wood plastic composite after twin-screw extrusion.
The flexural strength of the decoration wood plastic composite of embodiment 1 to 4 and the expansion rate of water absorption soak 12h in water after as follows:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Flexural strength (MPa) | 13.6 | 14.7 | 18.1 | 17.8 |
| Expansion rate of water absorption (%) | 4.4 | 4.2 | 3.1 | 3.7 |
In preparation method of the present invention, the flexural strength of embodiment 3 is the highest, and expansion rate of water absorption is minimum, and its performance is significantly higher than embodiment 1,2 and 4.
Claims (6)
1. a decoration wood plastic composite, is characterized in that, described decoration wood plastic composite comprises the composition of following weight part:
Urethane 14-22 part,
Polyisobutene 13-24 part,
Polypropylene 5-10 part,
Polyvinylidene chloride 6-14 part,
Elm sawdust 30-45 part,
Beech wood shavings 13-20 part,
Ethylene-propylene rubber(EPR) 4-8 part,
KH570 silane coupling agent 2-4 part.
2. a kind of decoration wood plastic composite according to claim 1, it is characterized in that, described decoration wood plastic composite comprises the composition of following weight part:
Urethane 16-20 part,
Polyisobutene 15-21 part,
Polypropylene 6-9 part,
Polyvinylidene chloride 8-12 part,
Elm sawdust 34-40 part,
Beech wood shavings 15-18 part,
Ethylene-propylene rubber(EPR) 5-7 part,
KH570 silane coupling agent 2-3 part.
3. decorate the preparation method with wood plastic composite, it is characterized in that the preparation method of described wood plastic composite is as follows:
(1) after collecting elm sawdust and beech wood shavings, elm sawdust and beech wood shavings are carried out drying, being dried to moisture content in elm sawdust and beech wood shavings is 3%-6%, then elm sawdust and beech wood shavings is pulverized, for subsequent use after pulverizing;
(2) high-speed mixer is opened, urethane 14-22 part of flow state, polyisobutene 13-24 part, polypropylene 5-10 part, polyvinylidene chloride 6-14 part, ethylene-propylene rubber(EPR) 4-8 part is added by weight in high-speed mixer, abundant mixing, drop into the elm sawdust 30-45 part after pulverizing, beech wood shavings 13-20 part again, again after mixing, add KH570 silane coupling agent 2-4 part again, Homogeneous phase mixing;
(3) wood is moulded mixing raw material and carry out mechanical presses, fashion of extrusion is twin-screw extruder, during twin-screw extruder, each phase temperature is respectively: first stage temperature is 170-180 DEG C, subordinate phase temperature is 190-195 DEG C, phase III temperature is 200-210 DEG C, fourth stage temperature is 215-220 DEG C, and the length-to-diameter ratio of twin screw extruder is 30:1-20:1, obtains wood plastic composite after twin-screw extrusion.
4. a kind of preparation method decorated with wood plastic composite according to claim 3, it is characterized in that being dried in the preparation method of described wood plastic composite moisture content in elm sawdust and beech wood shavings is 4%-5%.
5. a kind of preparation method decorated with wood plastic composite according to claim 3, is characterized in that the length-to-diameter ratio of twin screw extruder in the preparation method of described wood plastic composite is 30:1.
6. a kind of preparation method decorated with wood plastic composite according to claim 3, is characterized in that in the preparation method of described wood plastic composite, urethane is 16-20 part, polyisobutene is 15-21 part, polypropylene is 6-9 part, polyvinylidene chloride is 8-12 part, elm sawdust is 34-40 part, beech wood shavings are 15-18 part, ethylene-propylene rubber(EPR) is 5-7 part, KH570 silane coupling agent is 2-3 part.
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| CN201510186359.7A CN104845395A (en) | 2015-04-20 | 2015-04-20 | Wood plastic composite material for decoration, and preparation method thereof |
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| CN201510186359.7A CN104845395A (en) | 2015-04-20 | 2015-04-20 | Wood plastic composite material for decoration, and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108456415A (en) * | 2018-04-16 | 2018-08-28 | 合肥欧克斯新型建材有限公司 | A kind of compound floor tile of insulation antiseptic and preparation method thereof |
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