CN105566863A - High-temperature wood plastic alloy and preparation method thereof - Google Patents
High-temperature wood plastic alloy and preparation method thereof Download PDFInfo
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- CN105566863A CN105566863A CN201410627389.2A CN201410627389A CN105566863A CN 105566863 A CN105566863 A CN 105566863A CN 201410627389 A CN201410627389 A CN 201410627389A CN 105566863 A CN105566863 A CN 105566863A
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- 229920001155 polypropylene Polymers 0.000 claims abstract description 37
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- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 8
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- Compositions Of Macromolecular Compounds (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
High-temperature wood plastic alloy comprises the following components in mass percentage: 11.3-17.3% of polypropylene PP, 25-40% of wood fiber powder, 1.5-2.5% of an interface modifier, 1-2% of a lubricant, 0.2-0.4% of an antioxidant agent, 5-10% of a toughening agent and 34%-50% of polybutylene terephthalate PBT. The prepared high-temperature wood plastic alloy has the benefits of achieving the characteristics of light weight, low price and high performance; except for the conventional application field of a wood plastic material, the high-temperature wood plastic alloy can be used as engineering plastic.
Description
technical fieldthe present invention relates to the composition of macromolecular compound, Alloy And Preparation Method moulded by the high temperature wood particularly containing polypropylene PP and polybutylene terephthalate PBT.
background technologyit is utilize polyethylene, polypropylene (PP) and polyvinyl chloride etc. that prior art wood is moulded, replace common resin adhesive, new wood materials is mixed into useless vegetable fibres such as wood powder, rice husk, stalks, wherein useless vegetable fibre quality accounting is 30% ~ 70%, this Wood-plastic material through plastic processings such as extruding, mold pressing, injection moldings, the sheet material produced or section bar.Be mainly used in the industries such as building materials, furniture, logistics packaging.Wood powder processing temperature is all lower, is no more than 200 DEG C, and exceeding rear wood powder can burn in this temperature generation oxidation.Through patent retrieval, also do not have the patent that high temperature wood is moulded at present, mainly concentrate on PVC, PP, PE wood and mould, they all belong to low temperature wood and mould.
The advantage of the low temperature Wood-plastic material of prior art is as follows:
(1) waterproof, protection against the tide.Solve the problem of wood-based product to easy rotten, the dilatational strain after making moist of water suction in moist and many water surroundings at all, can use in the not applicable environment of classical wood millwork.
(2) insect protected, termite-proof, effectively stop insects harassing and wrecking, increase the service life.
(3) colourful, alternative color is numerous.Both there is natural wood texture and wood grain, the color of needs can have been customized again according to the individual character of oneself
(4) plasticity-is strong, can very simply realize personalized moulding, fully demonstrate characteristic feature.
(5) high-environmental, pollution-free, nuisanceless, reusable edible.Product is not containing benzene material, and formaldehyde content is 0.2, and lower than EO grade standard, be Europe deciding grade and level environmental protection standard, reusable edible has saved timber usage quantity greatly, is applicable to the state basic policy of Sustainable development, benefits the society.
(6) workability is good, can order, can dig, can saw, can bore, surface can japanning.
(7) install simply, construct convenient, do not need numerous and diverse construction technology, save settling time and expense.
(8) do not chap, do not expand, indeformable, without the need to maintenance and maintenance, be convenient to clean, save later period maintenance and upkeep cost.
(9) sound-absorbing effect is good, good energy saving property, makes indoor energy-saving up to more than 30%.
Described low temperature wood is moulded and is mainly used as that interior door moulded by wood, guardrail moulded by floor, skirting, integral cabinet, wardrobe, exterior wall cladding, Decorative hanging board, extension link plate, outdoor flooring, wood, plastic-steel wayside pavilion, gardens guardrail, balcony guardrail, leisure bench, flower stand, air conditoner support, window shutter, etc. etc.Wood-plastic material applying flexible, can be applied to any field of wood working, is the best environment-friendly materials replacing timber at present.
summary of the inventionthe technical problem to be solved in the present invention is to avoid the preparation temperature of above-mentioned prior art Wood-plastic material can not cross high weak point and proposes a kind of high temperature wood and mould Alloy And Preparation Method, and the problems such as preparation temperature physical parameter that is low, that do not reach engineering plastics requires moulded by the low temperature wood solving prior art.
The present invention solves the problems of the technologies described above the technical scheme proposed to be, alloy moulded by a kind of high temperature wood, comprises component as follows with mass percent shared separately: polypropylene PP11.3% ~ 17.3%, wood fiber powder 25% ~ 40%, interface modifier 1.5% ~ 2.5%, lubricant 1% ~ 2%, oxidation inhibitor 0.2% ~ 0.4%, toughner 5% ~ 10%, polybutylene terephthalate PBT34% ~ 50%.
Described polypropylene to be molecular weight be 100,000 ~ 200,000 homopolymerization PP, copolymerization PP or both mixtures.
Described wood fiber powder refers to clays into power the plant constituent being rich in lignocellulose, comprises wood powder, straw powder, bamboo powder, powdered rice hulls or peanut hull meal, or mixtures several arbitrarily in the middle of them.
Described interface modifier is maleic anhydride graft PE, maleic anhydride graft PP, maleic anhydride graft POE, Maleic anhydride-containg polyethylene or maleic anhydride graft EPDM, or mixtures several arbitrarily in the middle of them.
Described lubricant is EBS, erucicamide, PE wax, paraffin, stearic acid, calcium stearate or Zinic stearas, or mixtures several arbitrarily in the middle of them.
Described oxidation inhibitor is aromatic amine oxidation inhibitor, Hinered phenols antioxidant, thio-2 acid dibasic acid esters or phosphorous acid ester, or mixtures several arbitrarily in the middle of them.
Described toughner is polyolefin elastomer, terpolymer EP rubber EPDM or styrene-butadiene-styrene block copolymer SBS, or mixtures several arbitrarily in the middle of them.
The present invention is the technical scheme solving the problems of the technologies described above and propose, and the preparation method of alloy moulded by a kind of high temperature wood
,comprise the steps
:
A. following raw materials according is selected by mass percentage:
Polypropylene PP11.3% ~ 17.3%
Wood fiber powder 25% ~ 40%
Interface modifier 1.5% ~ 2.5%
Lubricant 1% ~ 2%
Oxidation inhibitor 0.2% ~ 0.4%
Toughner 5% ~ 10%
Polybutylene terephthalate PBT34% ~ 50%
B. wood fiber powder in steps A is put into high-speed mixer combination drying;
C. by the wood fiber powder after combination drying, polypropylene, interface modifier, lubricant, oxidation inhibitor and toughner, drop in cold mixed pot and mix;
E. the mixture in step C is dropped into dual-screw pelletizer and be prepared into PP wood plastic particles;
F. respectively PP wood plastic particles and polybutylene terephthalate PBT particle are put into high-speed mixer for dry dry;
G. PP wood plastic particles and formic acid butanediol ester PBT particle after drying are dropped in cold mixed pot and mix;
H. the mixture of step G input dual-screw pelletizer is prepared into high temperature wood and moulds alloy master batch.
In described step B, wood fiber powder is combination drying in the high-speed mixer under 120 DEG C of oil temperatures.
In described step F, PP wood plastic particles is dry 100 DEG C of oil temperature high-speed mixer for dry; Described polybutylene terephthalate PBT particle is that 120 DEG C of oil temperature high-speed mixer for dry are dry.
Compared with the existing technology comparatively, the invention has the beneficial effects as follows: the high temperature wood adopting the present invention to prepare is moulded alloy and had light weight, inexpensive and high performance feature.Except for except Traditional Wood moulding material Application Areas, can also use as engineering plastics.
embodimentbelow, the present invention is set forth further in conjunction with the preferred embodiments.
In following each embodiment, each component and shared mass percent as follows: polypropylene PP11.3% ~ 17.3%, wood fiber powder 25% ~ 40%, interface modifier 1.5% ~ 2.5%, lubricant 1% ~ 2%, oxidation inhibitor 0.2% ~ 0.4%, toughner 5% ~ 10%, polybutylene terephthalate PBT34% ~ 50%.Wherein polypropylene PP is Korea S star copolymerization dawn PP; Polybutylene terephthalate PBT is Changchun 1100; Interface modifier is MAH-PP, and percentage of grafting is 1%; Lubricant is calcium stearate and PE wax; Oxidation inhibitor is 1010; Toughner is the POE of american exxon, and the trade mark is 740; Granulating equipment used is Nanjing Rhea screw diameter 35mm type tablets press.
Embodiment 1:
Weigh PP346g, wood fiber powder 500g, MAH-PP30 gram, calcium stearate 10 grams, 10 grams, PE wax, 1,010 4 grams, oxidation inhibitor, toughner 100 grams, PBT1000 gram.
Prepare high temperature wood as follows and mould alloy:
The first step, preparation PP wood plastic particles: by combination drying in the high-speed mixer of wood fiber powder under 120 DEG C of oil temperatures 45 minutes, drop in cold mixed pot; Drop into polypropylene, interface modifier, lubricant, oxidation inhibitor and toughner successively again, blended 10 minutes; Again the above-mentioned raw materials mixed is dropped into dual-screw pelletizer and make PP wood plastic particles.Technological temperature is: the first 165 DEG C, district, 170 DEG C, the secondth district, 175 DEG C, the 3rd district, 175 DEG C, the 4th district, 178 DEG C, the 5th district, 175 DEG C, the 6th district, SECTOR-SEVEN 173 DEG C, Section Eight 175 DEG C, 175 DEG C, the 9th district, head 180 DEG C, engine speed 400r/m, feeding rotating speed: 50r/m.
Alloy master batch moulded by the high temperature wood that second step prepares PP and PBT:
By the PP wood plastic particles that obtains in first step dry 30 minutes of 100 DEG C of oil temperature high-speed mixer for dry, and by PBT particle dry 45 minutes of 120 DEG C of oil temperature high-speed mixer for dry; PP wood plastic particles after drying treatment and PBT particle are dropped in cold mixed pot by aforementioned proportioning in right amount, mixes 5 minutes; The high temperature wood that the mixture input dual-screw pelletizer of both PP wood plastic particles and PBT particle prepares PP and PBT is moulded alloy master batch.Technological temperature is: the first 190 DEG C, district, 195 DEG C, the secondth district, 205 DEG C, the 3rd district, 215 DEG C, the 4th district, 220 DEG C, the 5th district, 230 DEG C, the 6th district, SECTOR-SEVEN 233 DEG C, Section Eight 230 DEG C, 230 DEG C, the 9th district, head 225 DEG C, engine speed 300r/m, feeding rotating speed 30r/m.Aobvious next, in this step, alloy master batch prilling temperature moulded by high temperature wood is the processing temperature of PBT, namely 230 DEG C ~ 240 DEG C, belongs to high temperature process wood and moulds.
Embodiment 2
Weigh PP226g, wood fiber powder 800g, MAH-PP50 gram, calcium stearate 10 grams, 10 grams, PE wax, 1,010 4 grams, oxidation inhibitor, toughner 200 grams, PBT700 gram.
Material processing and preparation method are with embodiment 1.
By the mixing of technique described in summary of the invention, granulation, a test! (with embodiment 1 ratio, have adjusted the content of wood fiber powder), test result is shown in last list!
Embodiment 3:
Weigh PP246g, wood fiber powder 500g, MAH-PP30 gram, calcium stearate 10 grams, 10 grams, PE wax, 1,010 4 grams, oxidation inhibitor, toughner 200 grams, PBT1000 gram.
Material processing and preparation method are with embodiment 1.
Embodiment 4:
Weigh PP326g, wood fiber powder 500g, MAH-PP50 gram, calcium stearate 10 grams, 10 grams, PE wax, 1,010 4 grams, oxidation inhibitor, toughner 100 grams, PBT1000 gram.
Material processing and preparation method are with embodiment 1.
In each case, polypropylene to be molecular weight be 100,000 ~ 200,000 copolymerization PP, also can adopt homopolymerization PP or both mixtures.Wood fiber powder refers to clays into power the plant constituent being rich in lignocellulose, comprises wood powder, straw powder, bamboo powder, powdered rice hulls or peanut hull meal, or mixtures several arbitrarily in the middle of them.Interface modifier can also be maleic anhydride graft PE, maleic anhydride graft PP, maleic anhydride graft POE, Maleic anhydride-containg polyethylene or maleic anhydride graft EPDM, or mixtures several arbitrarily in the middle of them.Described lubricant is EBS, erucicamide, PE wax, paraffin, stearic acid, calcium stearate or Zinic stearas, or mixtures several arbitrarily in the middle of them.Described oxidation inhibitor is aromatic amine oxidation inhibitor, Hinered phenols antioxidant, thio-2 acid dibasic acid esters or phosphorous acid ester, or mixtures several arbitrarily in the middle of them.Described toughner is polyolefin elastomer, terpolymer EP rubber EPDM or styrene-butadiene-styrene block copolymer SBS, or mixtures several arbitrarily in the middle of them.
The performance of alloy is moulded by the high temperature wood prepared in following method and each the various embodiments described above of standard testing:
The master batch that alloy moulded by the high temperature prepared in each embodiment wood is placed in dry 2 hours of the air dry oven of temperature 90 DEG C, sample preparation on 80T injection moulding machine.Cooling placement was tested after 24 hours.Testing standard is USS, and probe temperature is 25 DEG C.Tensile strength standard A STMD638, batten is of a size of 57mm*127mm*3.2mm (effective dimensions), and draw speed is 5mm/min; Flexural strength standard: ASTMD790, batten is of a size of 127mm*13mm*3.2mm, and rate of bending is 2mm/min; Chalpy impact standard: ASTMD256, batten is of a size of 64mm*12.7mm*3.2mm, and lacking ロ residue width is 10.12mm.Density measurement method: ASTMD792-00.Thermal distortion testing method: ASTMD648-04.
Test result is as following table:
Can be seen by upper table, alloy master batch moulded by the high temperature wood prepared according to each embodiment is a kind of heat-resisting and PBT alloy material moulded by intensity is high wood, except for except Traditional Wood moulding material Application Areas, engineering material field can also be widely used in: electric equipment products, as household electrical appliances handle, junctor, shell etc.; Automobile industry, as car door operating handle, safety lever, distributor head, mud guard, wire protective case, wheel cover etc.; Industrial part, as OA fan, keyboard, fishing tackle winder, part, lampshade etc., toy case and built-in part.
Claims (10)
1. an alloy moulded by high temperature wood, it is characterized in that, comprises component as follows with mass percent shared separately:
Polypropylene PP11.3% ~ 17.3%, wood fiber powder 25% ~ 40%, interface modifier 1.5% ~ 2.5%, lubricant 1% ~ 2%, oxidation inhibitor 0.2% ~ 0.4%, toughner 5% ~ 10%, polybutylene terephthalate PBT34% ~ 50%.
2. alloy moulded by high temperature wood as claimed in claim 1, it is characterized in that:
Described polypropylene to be molecular weight be 100,000 ~ 200,000 homopolymerization PP, copolymerization PP or both mixtures.
3. alloy moulded by high temperature wood as claimed in claim 1, it is characterized in that:
Described wood fiber powder refers to clays into power the plant constituent being rich in lignocellulose, comprises wood powder, straw powder, bamboo powder, powdered rice hulls or peanut hull meal, or mixtures several arbitrarily in the middle of them.
4. alloy moulded by high temperature wood as claimed in claim 1, it is characterized in that:
Described interface modifier is maleic anhydride graft PE, maleic anhydride graft PP, maleic anhydride graft POE, Maleic anhydride-containg polyethylene or maleic anhydride graft EPDM, or mixtures several arbitrarily in the middle of them.
5. alloy moulded by high temperature wood as claimed in claim 1, it is characterized in that:
Described lubricant is EBS, erucicamide, PE wax, paraffin, stearic acid, calcium stearate or Zinic stearas, or mixtures several arbitrarily in the middle of them.
6. alloy moulded by high temperature wood as claimed in claim 1, it is characterized in that:
Described oxidation inhibitor is aromatic amine oxidation inhibitor, Hinered phenols antioxidant, thio-2 acid dibasic acid esters or phosphorous acid ester, or mixtures several arbitrarily in the middle of them.
7. alloy moulded by high temperature wood as claimed in claim 1
,it is characterized in that:
Described toughner is polyolefin elastomer, terpolymer EP rubber EPDM or styrene-butadiene-styrene block copolymer SBS, or mixtures several arbitrarily in the middle of them.
8. the wooden preparation method moulding alloy of high temperature
,comprise the steps
:
A. following raw materials according is selected by mass percentage:
Polypropylene PP11.3% ~ 17.3%
Wood fiber powder 25% ~ 40%
Interface modifier 1.5% ~ 2.5%
Lubricant 1% ~ 2%
Oxidation inhibitor 0.2% ~ 0.4%
Toughner 5% ~ 10%
Polybutylene terephthalate PBT34% ~ 50%
B. wood fiber powder in steps A is put into high-speed mixer combination drying;
C. by the wood fiber powder after combination drying, polypropylene, interface modifier, lubricant, oxidation inhibitor and toughner, drop in cold mixed pot and mix;
E. the mixture in step C is dropped into dual-screw pelletizer and be prepared into PP wood plastic particles;
F. respectively PP wood plastic particles and polybutylene terephthalate PBT particle are put into high-speed mixer for dry dry;
G. PP wood plastic particles and formic acid butanediol ester PBT particle after drying are dropped in cold mixed pot and mix;
H. the mixture of step G input dual-screw pelletizer is prepared into high temperature wood and moulds alloy master batch.
9. the preparation method of alloy moulded by high temperature wood as claimed in claim 8
,it is characterized in that:
In described step B, wood fiber powder is combination drying in the high-speed mixer under 120 DEG C of oil temperatures.
10. the preparation method of alloy moulded by high temperature wood as claimed in claim 8
,it is characterized in that:
In described step F, PP wood plastic particles is dry 100 DEG C of oil temperature high-speed mixer for dry; Described polybutylene terephthalate PBT particle is that 120 DEG C of oil temperature high-speed mixer for dry are dry.
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|---|---|---|---|
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106496971A (en) * | 2016-11-18 | 2017-03-15 | 无锡明盛纺织机械有限公司 | A kind of engineering plastic materials containing bamboo fibre and preparation method |
| CN114621550A (en) * | 2022-02-28 | 2022-06-14 | 上海金发科技发展有限公司 | Soft-touch low-odor low-TVOC polypropylene composite material and preparation method and application thereof |
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Application publication date: 20160511 |