CN103509360A - Preparation method of nano-grade glass fiber synergistic-modified enhanced wood-plastic plate - Google Patents
Preparation method of nano-grade glass fiber synergistic-modified enhanced wood-plastic plate Download PDFInfo
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- CN103509360A CN103509360A CN201310405372.8A CN201310405372A CN103509360A CN 103509360 A CN103509360 A CN 103509360A CN 201310405372 A CN201310405372 A CN 201310405372A CN 103509360 A CN103509360 A CN 103509360A
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Abstract
The invention discloses a preparation method of a nano-grade glass fiber synergistic-modified enhanced wood-plastic plate. The invention belongs to the technical fields such as inorganic nano-grade particle fictionalization modification and glass fiber synergistic enhancement. With the method, a problem of easy agglomeration of the nano-particles and glass fiber in the substrate is effectively solved, the enhancing synergistic effect of modified glass fiber and nano-particles in wood-plastic is discovered for a first time, and the wood-plastic plate material is provided with higher tensile strength and modulus with effective utilization of the synergistic effect. Also, the nano-grade glass fiber synergistic-modified enhanced wood-plastic plate material has excellent ultraviolet-absorbing performance. The method is simple and feasible, and has high controllability. The plate material can be used for preparing high-performance wood-plastic products with the characteristics of high strength, ultraviolet resistance, long service life, and the like. Therefore, the method has wide application prospect in the fields such as construction material, outdoor porch pavilion, indoor and outdoor flooring and furniture, and the like.
Description
Technical field
The present invention relates to the functional modification of inorganic nano-particle and work in coordination with the technical fields such as enhancing with glass, being specifically related to a kind of based on nanometer SiO
2, glass fibre compound system the preparation method of Wood plastic boards.
Background technology
Current social, scarcity of resources, environmental pollution is serious, using and wasting of woodwork is subject to the strict restriction in various countries, meanwhile, the processing that recycles of the fiber-like materials such as waste and old wood chip, stalk also obtains the attention of height and certain development, in American-European and Japan, forms already related industries, wherein, wood plastic composite is especially outstanding.Concentrate on some: first wood is moulded and compared timber and have better cyclic process processing characteristics and products appearance, in performance, such as tensile strength, modulus, hardness and dimensional stability, there is larger lifting: secondly, Wood-plastic material have wood appearance and corrosion-resistant, dyeing is lasting and simple, widened wood fibre out of doors with the Application Areas of high-end imitative wood goods! Be also finally the most important, wood plastic composite have drawn from waste or used plastics and wood fibre (wood shavings, stalk), be a large form of environmental friendliness, renewable, recycling economy, is a kind of Important Economic pattern of current social Sustainable development.Therefore, wood is moulded because its excellent properties bringing is subject to extensive concern, is domesticly also forming in recent years the relevant enterprise that wood moulds and is having certain development.Yet, due to bottleneck technically, breakthrough is needed in the lifting of the intensity of Wood-plastic, the correlated performance such as fire-retardant badly, this is also to have limited on current Wood plastic boards and the outer wayside pavilion of the main concentration chamber of other goods, guardrail and outdoor floor, and the Application Areas that temporarily can not really replace traditional timber is on a large scale as furniture and building trade.This patent provides a kind of and has coordinated to strengthen the development that wood is moulded plate based on nanotechnology, has significantly promoted wood and has moulded the mechanical property of plate and improved fire retardancy and anti-uv-ray, has expanded the application category that wood is moulded.
Nanotechnology started from for 20th century, became side by side three large pillars of century socio-economic development with information technology and biotechnology.Rise ，Dui China materials industry of nanosecond science and technology has proposed stern challenge, simultaneously also for great-leap-forward development provides rare opportunity.Nano material is the basis of nanosecond science and technology, and function nano material is field the most dynamic in nanometer material science, and it is to high-tech areas such as information, biology, the energy, environment, aerospace, by generation far-reaching influence and have broad application prospects.In matrix material, for the nano combined of performance boost, have remarkable effect and potentiality, but meanwhile, the dispersion of nanoparticle in matrix is a great problem of this type of matrix material always.
In this simultaneously, glass is because the enhancement function in plastics and fiber of its excellence is widely used, but containing xylogen, cellulosic waste and old fibre Material reinforcement, still belongs to rare for having drawn from as wood is moulded! Equally, glass reaches good oriented and excellent dispersion effect difficulty still in technique in matrix, and length-to-diameter ratio is also to need a variable controlling.Glass strengthens comparatively extensive in plastics, but rarely has and see for the research of Wood-plastic material as glass.And application in wood is moulded is unexpected except there being good matrix phase capacitive, the matrix of wood fibre also can be beneficial to glass dispersion therein, the glass that modification is crossed simultaneously can largely be improved nanoparticle dispersion therein under the compatible state that tangles, the synergistic effect of the two is very excellent, if this type of over-all properties exploitation, prospect should be considerable.
Summary of the invention
The invention provides the collaborative wood that strengthens of a kind of nanometer glass modification and mould plate preparation method.The glass of the inventive method modification and nanoparticle compound system have not only possessed the advantage of the two, and the synergistic effect between them makes wood based on this compound system mould environment-friendly materials to have higher intensity and work-ing life, widened greatly the Application Areas of Wood plastic boards, and be that correlated performance is adjustable variable by process ratio; Meanwhile, the Wood plastic boards based on modification glass and nanoparticle compound system also shows excellent anti-ultraviolet property.
The technical solution used in the present invention is as follows for achieving the above object:
Nanometer glass modified synergic strengthens a preparation method for Wood plastic boards, comprises the following steps:
(1) nanoparticle SiO2, plastic grain and 80-100 order wood powder are put into vacuum drying oven, at 100-110 ℃ of dry 4-5 hour; Glass fibre is placed in to thermal treatment 2-3 hour at 400-550 ℃ of temperature;
(2) (2-3) by volume: (8-10): 1 takes Silane coupling agent KH550, ethanol, distilled water is mixed with solution of silane, dried wood powder and nanoparticle is dissolved in solution to ultrasonic dispersion 1-2 hour;
(3) will after above-mentioned mixed solution and heat treated glass fibre mix and blend, be put in ball grinder, ball milling 1-2 days in ball mill, can make the single-phase liquid of wood powder that is filled with nanoparticle and glass fibre; Wherein, Ball-milling Time is adjustable, and ball mill also can be used associated mechanical whipping device instead;
(4) take out liquid in ball grinder, alcohol dilution is cleaned, and drains to be placed in baking oven and dry on filter;
(5) wood powder that is filled with nanoparticle and glass fibre obtaining after above-mentioned steps modification and the plastic grain of oven dry are allocated by different ratios, add the compound compatible system that wood is moulded oeverall quality 4%-5% ratio that accounts for simultaneously, rely on processing situation and add in right amount 1-10%DOP softening agent;
(6) above-mentioned compound is mixed well, extrusion moulding 5-10 minute on screw extrusion press, temperature is controlled between 170-180 ℃, and according to time temperature equivalence, time and temperature can suitably be adjusted according to processing;
(7) will process products therefrom through step (6) and put into mould at the mould compression molding 10-15 minute of 170-180 ℃, and make nanometer glass modified synergic and strengthen Wood plastic boards.
The described plastic grain of step (1) is pp.
The described nanoparticle of step (2) accounts for the 1-5% that moulds wooden total mass.
The described glass fibre of step (3) accounts for the 1-10% that moulds wooden total mass.
The described compound compatible system of step (5) is comprised of maleic anhydride and polypropylene grafted maleic anhydride etc.
Beneficial effect of the present invention:
The present invention not only efficiently solves nanoparticle and glass easy problem of reuniting in matrix, and found first modification glass and the nanoparticle enhancing synergistic effect in wood is moulded, and effectively utilize synergistic effect and make Wood plastic boards there is higher tensile strength and modulus and toughness.In addition, nanometer glass modified synergic enhancing wood is moulded plate and is just also shown excellent UV absorbing properties.This method is simple, and controllability is strong.Institute's panel can be used for preparing high strength, uvioresistant money, the contour performance wood plastic product of long service life, therefore in fields such as building materials, outdoor Lang Ting, indoor and outdoor floor furnitures, has broad application prospects.
Accompanying drawing explanation
Fig. 1 is that nanometer glass modified synergic strengthens the ultraviolet absorption spectrogram that wood is moulded plate film.
Embodiment
Nanometer glass modified synergic strengthens a preparation method for Wood plastic boards, comprises the following steps:
(1) by nanoparticle SiO2, plastic grain (pp) and 80-100 order wood powder are put into vacuum drying oven, at 105 ℃, are dried 5 hours; Glass fibre is placed at 480 ℃ of temperature to thermal treatment 3 hours;
(2) preparation solution of silane (KH550: ethanol: distilled water=2:8:1), dried wood powder and nanoparticle (accounting for wood powder 1-5% ratio in nanoparticle mixes) are dissolved in solution to ultrasonic dispersion 1 hour;
(3) will after above-mentioned mixed solution and heat treated glass fibre (glass fibre accounts for the 5-50% of wood powder volume) mix and blend, be put in ball grinder, in ball mill, ball milling is 2 days, can make the single-phase liquid of wood powder that is filled with nanoparticle and glass fibre, wherein, Ball-milling Time is adjustable, and ball mill also can be used associated mechanical whipping device instead;
(4) take out liquid in ball grinder, alcohol dilution is cleaned, and drains to be placed in baking oven and dry on filter;
(5) wood powder that is filled with nanoparticle and glass obtaining after above-mentioned steps modification and the plastic grain of oven dry are allocated by different ratios, interpolation simultaneously accounts for wood and moulds the compound compatible system of oeverall quality 4-5% ratio (maleic anhydride: polypropylene grafted maleic anhydride=1:1), rely on processing situation and add in right amount 1-10%DOP softening agent.
(6) above-mentioned compound is mixed well, on screw extrusion press, extrusion moulding is 6 minutes, and temperature is controlled between 170-1800C, and according to time temperature equivalence, time and temperature can suitably be adjusted according to processing;
(7) will process products therefrom through step (6) and put into corresponding mould the vulcanizing press compression molding of 170-180 ℃ 10 minutes, make tensile bars and film like wood plastic sheet material; Wait until and stretch and uv-absorbing test.
Table 1: do not making under any processing tensile strength when wood is moulded different ratios (MPa).
Table 2: do not making under any processing ductility when wood is moulded different ratios (fracture per-cent)
Table 3: when moulding wood with 8-2 ratio, mechanical property under different modification cooperative approach
Table 4: under compound compatible system, the synergy of different modified Nano particles and glass
In the situation that not deviating from spirit and scope of the invention, can construct multiple different invention embodiment.Should be understood that, scope of the present invention is limited by appended claim, and is not limited to the particular described in specification sheets.
Claims (5)
1. nanometer glass modified synergic strengthens the preparation method that wood is moulded plate, it is characterized in that, comprises the following steps:
(1) by nanoparticle SiO
2, plastic grain and 80-100 order wood powder put into vacuum drying oven, at 100-110 ℃ of dry 4-5 hour; Glass fibre is placed in to thermal treatment 2-3 hour at 400-550 ℃ of temperature;
(2) (2-3) by volume: (8-10): 1 takes Silane coupling agent KH550, ethanol, distilled water is mixed with solution of silane, dried wood powder and nanoparticle is dissolved in solution to ultrasonic dispersion 1-2 hour;
(3) will after above-mentioned mixed solution and heat treated glass fibre mix and blend, be put in ball grinder, ball milling 1-2 days in ball mill, can make the single-phase liquid of wood powder that is filled with nanoparticle and glass fibre; Wherein, Ball-milling Time is adjustable, and ball mill also can be used associated mechanical whipping device instead;
(4) take out liquid in ball grinder, alcohol dilution is cleaned, and drains to be placed in baking oven and dry on filter;
(5) wood powder that is filled with nanoparticle and glass fibre obtaining after above-mentioned steps modification and the plastic grain of oven dry are allocated by different ratios, interpolation simultaneously accounts for wood and moulds the compound compatible system of oeverall quality 4-5% ratio (maleic anhydride and PP-MAH), relies on processing situation and adds in right amount 1-10%DOP softening agent;
(6) above-mentioned compound is mixed well, extrusion moulding 5-10 minute on screw extrusion press, temperature is controlled between 170-180 ℃, and according to time temperature equivalence, time and temperature can suitably be adjusted according to processing;
(7) will process products therefrom through step (6) and put into mould at the mould compression molding 10-15 minute of 170-180 ℃, and make nanometer glass modified synergic and strengthen Wood plastic boards.
2. nanometer glass modified synergic according to claim 1 strengthens the preparation method of Wood plastic boards, it is characterized in that, the described plastic grain of step (1) is pp.
3. nanometer glass modified synergic according to claim 1 strengthens the preparation method of Wood plastic boards, it is characterized in that, the described nanoparticle of step (2) accounts for the 1-5% that moulds wooden total mass.
4. nanometer glass modified synergic according to claim 1 strengthens the preparation method of Wood plastic boards, it is characterized in that, the described glass fibre of step (3) accounts for the 1-10% that moulds wooden total mass.
5. nanometer glass modified synergic according to claim 1 strengthens the preparation method of Wood plastic boards, it is characterized in that, the described compound compatible system of step (5) is comprised of maleic anhydride and polypropylene grafted maleic anhydride etc.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880578A (en) * | 2017-11-23 | 2018-04-06 | 荔浦庆祥竹木有限公司 | A kind of wood moulding clothes hanger and its manufacture craft |
| CN111961284A (en) * | 2020-08-26 | 2020-11-20 | 安徽国泰智能科技有限公司 | Light high-strength air guide sleeve for light truck |
| CN117106316A (en) * | 2023-10-20 | 2023-11-24 | 潍坊云鼎新材料有限公司 | Preparation method of high-strength wood-plastic composite material |
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| SU1388407A1 (en) * | 1986-02-03 | 1988-04-15 | Специальное Конструкторско-Технологическое Бюро С Экспериментальным Производством Отделения Химии Поверхности Института Физической Химии Им.Л.В.Писаржевского | Compound for producing compression-molded souvenir articles |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880578A (en) * | 2017-11-23 | 2018-04-06 | 荔浦庆祥竹木有限公司 | A kind of wood moulding clothes hanger and its manufacture craft |
| CN111961284A (en) * | 2020-08-26 | 2020-11-20 | 安徽国泰智能科技有限公司 | Light high-strength air guide sleeve for light truck |
| CN117106316A (en) * | 2023-10-20 | 2023-11-24 | 潍坊云鼎新材料有限公司 | Preparation method of high-strength wood-plastic composite material |
| CN117106316B (en) * | 2023-10-20 | 2024-02-20 | 潍坊云鼎新材料有限公司 | Preparation method of high-strength wood-plastic composite material |
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