CN102140255B - Hot-press type wood plastic composite for toy and preparation method thereof - Google Patents
Hot-press type wood plastic composite for toy and preparation method thereof Download PDFInfo
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- CN102140255B CN102140255B CN2011100936342A CN201110093634A CN102140255B CN 102140255 B CN102140255 B CN 102140255B CN 2011100936342 A CN2011100936342 A CN 2011100936342A CN 201110093634 A CN201110093634 A CN 201110093634A CN 102140255 B CN102140255 B CN 102140255B
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Abstract
The invention discloses a hot-press type wood plastic composite for a toy. The hot-press type wood plastic composite is prepared from the following components in parts by weight: 60-75 parts of wood powder, 10-30 parts of plastic resin, 2-6 parts of interface compatilizers, 1-3 parts of intensifier, 1-4 parts of lubricant and 1-5 parts of other functional auxiliaries. The preparation method comprises the following steps: degreasing and drying the wood powder; spraying a coupling agent solution to process the wood powder and pre-mixing the coupling agent solution with the wooed powder; mixing in a high-speed mixer so as to prepare a mixed material; and carrying out mixing and plasticizing and compression molding in a dual-roller plasticator. In the invention, the defect that the interface compatilizer is a single-phase compatilizer is overcome; the requirement of the wood plastic composite on mechanical property and water resistance can be met by utilizing compounded synergism between the interface compatilizers; the composite can be formed by hot press, thereby avoiding various inconvenience in a plastic wood melt extrusion process; the required product can be prepared by one-step forming according to the shape of a mould; and the utilization of the material is also be improved.
Description
Technical field
The invention belongs to the wood plastic composite technical field, specifically relate to a kind of toy with hot pressing type wood plastic composite and preparation method thereof.
Background technology
The wooden toy industry has caused very big influence to environment in the process of developing, the wood chip that produces during particularly wooden toy is produced pollutes.On the one hand a large amount of wood chips are piled up the finite space that has taken enterprise; And bring potential safety hazard; Processing causes the waste of resource and the pollution of environment because the wood chip of piling up can not get effectively on the other hand, so the recycling technology of wood chip becomes the toy industry development key problem that influences.
Wood plastic composite (Wood Plastics Composite) is compound by wood powder and thermoplastic polyester, through the type material of new structure and excellent over-all properties of having of processes moulding such as hot pressing.The main raw material of wood plastic composite is agriculture and forestry organic waste material and waste or used plastics, and its product mainly is used as the substitute of timber.The pressure that the exploitation wood plastic composite was becoming tight for waste ' s reclamation, environment protection and alleviation natural timber day all has crucial meaning, thereby has received global extensive attention.It can make full use of depleted timber such as reclaiming timber, clout, wood chip, increases substantially the utilization ratio of natural timber, and the wood of producing is on the other hand moulded toy and also can be reclaimed fully, meets national circular economy policy.Adopt the hot pressing die moulding, make it in actual production, compare, can simplify production technique, help the benign development of enterprise with traditional technology.
Because wood powder is the wetting ability organic filler, and polyolefine is the hydrophobic polymer material, the two consistency is relatively poor.For solving the interface compatibility of the two, improve the mechanical property of material, maleic anhydride grafted polymer is the effective interfacial compatibilizer of this matrix material.The addition of wood powder is very high in the actual production wood plastic composite; Generally all more than 60%; The matrix material water-absorbent is the individual problem that needs to be resolved hurrily like this, therefore develops the interfacial compatibilizer of high performance wood plastic composite, is crucial to obtain high performance matrix material.
At home and abroad, wood plastic composite development all is extrusion moulding than product faster, and the product overwhelming majority is plate and bar, and viscosity is very big when moulding wood and melt extrude simultaneously, and expressing technique is poor, and energy consumption is high, especially to the wood powder ratio when big, and more difficult moulding.
Summary of the invention
The present invention solves the existing in prior technology technical problem, provides a kind of toy with hot pressing type wood plastic composite and preparation method thereof.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals: a kind of toy is used the hot pressing type wood plastic composite, and in 100 parts of weight parts, composition of raw materials is: 60～75 parts of wood powders; 10～30 parts of Plastic Resins; 2～6 parts of interfacial compatibilizers; 1～3 part of toughener; 1～4 part of lubricant; 1～5 part of other functional agent.Wherein said wood powder is made its granularity 30～120 orders by wooden waste such as sawdust, chips, wood chip, wood shavings through pulverizing drying.Said Plastic Resin is a kind of among PE, PP, the PVC, selects virgin material or reclaimed materials for use.Said interfacial compatibilizer is the mixture of a kind of and maleic anhydride graft polyene resin in titanate coupling agent, the silane coupling agent; Wherein maleic anhydride graft polyene resin is corresponding with the Plastic Resin of selecting for use; Be Plastic Resin when being Vilaterm, select maleic anhydride grafted polyethylene for use; When Plastic Resin is Vestolen PP 7052, select maleic anhydride inoculated polypropylene for use; When Plastic Resin is SE, select the maleic anhydride graft SE for use.Said toughener is a kind of or several mixtures in ACR, chlorinatedpolyethylene, lime carbonate, the spun glass.Said lubricant is polyethylene wax or methyl-silicone oil.Said other functional agent comprises stablizer, softening agent and ultraviolet shielded absorption agent, and wherein stablizer is calcium-zinc composite stabilizing agent or barium zinc stabilizer, and softening agent is an epoxy soybean oil, and ultraviolet shielded absorption agent is titanium oxide or zinc oxide.
A kind of toy is with the preparation method of hot pressing type wood plastic composite; May further comprise the steps: a, with wood powder in 120 ℃ of loft drier dry 4 hours, carry out degreasing and oven dry, make its water ratio less than 2%; Remove combination water in the wood powder, increase the interface compatibility of wood powder and synthetic resin moulding compound superpolymer; B, select titanate coupling agent or silane coupling agent for use, use acetone to be diluted to 20% volume ratio, spray with dilution back coupling agent solution and handle degreasing and the wood powder of dry, in high-speed mixer, spray also pre-mixing of processing as mother liquor; C, proportionally join Plastic Resin, interfacial compatibilizer, toughener, lubricant and other functional agent in the high-speed mixer with heating function successively, mix, make compound, temperature is controlled at 70～80 ℃, mixed at high speed 15～20min; D, with compound place 145～150 ℃ twin-roll plastic mixing mill mix the plasticizing 5～10min,, make described toy and use the hot pressing type wood plastic composite in 173～180 ℃ of compression moldings through thermocompressor.
It is the deficiency of single compatilizer that the present invention has overcome prior art median surface compatilizer; Utilize between interfacial compatibilizer composite collaborative; Can satisfy the requirement of wood plastic composite mechanical property and water resisting property, the present invention can be hot-forming, avoided moulding wood and melt extruded the inconvenience in the technology; Can prepare desired product according to the mold shape once shaped, also improve the utilization ratio of material.
Embodiment
Through embodiment, do further bright specifically below to technical scheme of the present invention.
Embodiment 1: a kind of toy is used the hot pressing type wood plastic composite, and in 100 parts of weight parts, composition of raw materials is:
70 parts of wood powders (50 order)
16 parts of Plastic Resins (PVC)
Interfacial compatibilizer
3 parts of maleic anhydride graft SE
2 parts of silane coupling agents
Toughener
1 part of ACR
1 part of chlorinatedpolyethylene
0.5 part in lime carbonate
Lubricant
3 parts of methyl-silicone oils
Other functional agent
1.5 parts of calcium-zinc composite stabilizing agents
1.5 parts of epoxy soybean oils
0.5 part of titanium oxide
A kind of toy is with the preparation method of hot pressing type wood plastic composite; May further comprise the steps: a, with wood powder in 120 ℃ of loft drier dry 4 hours, carry out degreasing and oven dry, make its water ratio less than 2%; Remove combination water in the wood powder, increase the interface compatibility of wood powder and synthetic resin moulding compound superpolymer; B, select titanate coupling agent or silane coupling agent for use, use acetone to be diluted to 20% volume ratio, spray with dilution back coupling agent solution and handle degreasing and the wood powder of dry, in high-speed mixer, spray also pre-mixing of processing as mother liquor; C, proportionally join Plastic Resin, interfacial compatibilizer, toughener, lubricant and other functional agent in the high-speed mixer with heating function successively, mix, make compound, temperature is controlled at 70～80 ℃, mixed at high speed 15～20min; D, with compound place 145～150 ℃ twin-roll plastic mixing mill mix the plasticizing 5～10min,, make described toy and use the hot pressing type wood plastic composite in 173～180 ℃ of compression moldings through thermocompressor.
It is the deficiency of single compatilizer that the present invention has overcome prior art median surface compatilizer; Utilize between interfacial compatibilizer composite collaborative; Can satisfy the requirement of wood plastic composite mechanical property and water resisting property, the present invention can be hot-forming, avoided moulding wood and melt extruded technology; Can prepare desired product according to the mold shape once shaped, also improve the utilization ratio of material.
Embodiment 2: a kind of toy is used the hot pressing type wood plastic composite, and in 100 parts of weight parts, composition of raw materials is:
72 parts of wood powders (100 order)
16 parts of Plastic Resins (PVC)
Interfacial compatibilizer
2 parts of maleic anhydride graft SE
2 parts of titanate coupling agents
Toughener
1 part of ACR
1.5 parts in spun glass
Lubricant
2 parts of methyl-silicone oils
Other functional agent
1.5 parts of calcium-zinc composite stabilizing agents
1.5 parts of epoxy soybean oils
0.5 part of titanium oxide
The preparation method is referring to embodiment 1.
Embodiment 3: a kind of toy is used the hot pressing type wood plastic composite, and in 100 parts of weight parts, composition of raw materials is:
60 parts of wood powders (30 order)
26 parts of Plastic Resins (PE)
Interfacial compatibilizer
2 parts of maleic anhydride grafted polyethylenes
2 parts of silane coupling agents
Toughener
1 part in lime carbonate
1 part in spun glass
Lubricant
3 parts of polyethylene waxs
Other functional agent
2 parts of barium zinc stabilizers
2 parts of epoxy soybean oils
1 part in zinc oxide
The preparation method is referring to embodiment 1.
Embodiment 4: a kind of toy is used the hot pressing type wood plastic composite, and in 100 parts of weight parts, composition of raw materials is:
75 parts of wood powders (120 order)
13 parts of Plastic Resins (PP)
Interfacial compatibilizer
4 parts of maleic anhydride graft polychloroprene
1 part of silane coupling agent
Toughener
1 part of ACR
1 part in spun glass
Lubricant
2 parts of methyl-silicone oils
Other functional agent
1.5 parts of calcium-zinc composite stabilizing agents
1.3 parts of epoxy soybean oils
0.2 part in zinc oxide
The preparation method is referring to embodiment 1.
Toy to instance 1～4 preparation carries out performance test with the hot pressing type wood plastic composite, test result as follows:
Tensile strength adopts GB/T1040.1-2006 in the last table, and the socle girder unnotched impact strength adopts GB/T1843-2008, and water-intake rate adopts the ASTM570 test.
At last, should be pointed out that above embodiment only is the more representational example of the present invention.Obviously, technical scheme of the present invention is not limited to the foregoing description, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (6)
1. a toy is used the hot pressing type wood plastic composite, it is characterized in that composition of raw materials is in 100 parts of weight parts: 60 ~ 75 parts of wood powders; 10 ~ 30 parts of Plastic Resins; 2 ~ 6 parts of interfacial compatibilizers; 1 ~ 3 part of toughener; 1 ~ 4 part of lubricant; 1 ~ 5 part of other functional agent; Said Plastic Resin is a kind of among PE, PP, the PVC, selects virgin material or reclaimed materials for use; Said interfacial compatibilizer is the mixture of a kind of and maleic anhydride graft polyene resin in titanate coupling agent, the silane coupling agent; Wherein maleic anhydride graft polyene resin is corresponding with the Plastic Resin of selecting for use; Be Plastic Resin when being Vilaterm, select maleic anhydride grafted polyethylene for use; When Plastic Resin is Vestolen PP 7052, select maleic anhydride inoculated polypropylene for use; When Plastic Resin is SE, select the maleic anhydride graft SE for use.
2. a kind of toy according to claim 1 is used the hot pressing type wood plastic composite, it is characterized in that said wood powder is made its granularity 30 ~ 120 orders by sawdust, chips, wood chip, the wooden waste of wood shavings through pulverizing drying.
3. a kind of toy according to claim 1 is used the hot pressing type wood plastic composite, it is characterized in that said toughener is a kind of or several mixtures in ACR, chlorinatedpolyethylene, lime carbonate, the spun glass.
4. a kind of toy according to claim 1 is used the hot pressing type wood plastic composite, it is characterized in that said lubricant is polyethylene wax or methyl-silicone oil.
5. a kind of toy according to claim 1 is used the hot pressing type wood plastic composite; It is characterized in that said other functional agent comprises stablizer, softening agent and ultraviolet shielded absorption agent; Wherein stablizer is calcium-zinc composite stabilizing agent or barium zinc stabilizer; Softening agent is an epoxy soybean oil, and ultraviolet shielded absorption agent is titanium oxide or zinc oxide.
6. according to the preparation method of the said a kind of toy of one of claim 1 ~ 5 with the hot pressing type wood plastic composite; It is characterized in that said preparation method may further comprise the steps: a, with wood powder in 120 ℃ of loft drier dry 4 hours; Carry out degreasing and oven dry; Make its water ratio less than 2%, remove combination water in the wood powder, increase the interface compatibility of wood powder and synthetic resin moulding compound superpolymer; B, select titanate coupling agent or silane coupling agent for use, use acetone to be diluted to 20% volume ratio, spray with dilution back coupling agent solution and handle degreasing and the wood powder of dry, in high-speed mixer, spray also pre-mixing of processing as mother liquor; C, proportionally join Plastic Resin, interfacial compatibilizer, toughener, lubricant and other functional agent in the high-speed mixer with heating function successively, mix, make compound, temperature is controlled at 70 ~ 80 ℃, mixed at high speed 15 ~ 20min; D, with compound place 145 ~ 150 ℃ twin-roll plastic mixing mill mix the plasticizing 5 ~ 10min,, make described toy and use the hot pressing type wood plastic composite in 173 ~ 180 ℃ of compression moldings through thermocompressor.
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