CN105482221A - High-weatherability doped silica-aluminum plastic composite material and preparation method thereof - Google Patents
High-weatherability doped silica-aluminum plastic composite material and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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Abstract
The invention relates to a high-weatherability doped silica-aluminum plastic composite material and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 55 to 69 parts of silica-aluminum material, 25 to 35 parts of PE (Poly Ethylene), 1 to 2.5 parts of aluminic acid ester coupling agent, 1 to 5 parts of PE wax, 1 to 5 parts of paraffin and 3 to 3.5 parts of modified PE; during preparation, high-speed dispersion and mixing, extrusion pelletization, and melting extrusion molding are adopted. Compared with the prior art, the composite material and the preparation method thereof, provided by the invention, the function of inhibiting photooxidative degradation of the silica-aluminum material and the adhesive property of plastic is fully used, so that the prepared composite material has high mechanical property and also has high-weatherability, the processing technology is simple, industrial waste and regrown materials are taken as raw materials, so that the characteristics of being energy-saving and environment-friendly are realized, meanwhile, the cost is low and a good application prospect is realized.
Description
Technical field
The invention belongs to building material technical field, relate to a kind of high-weatherability doped silicon-aluminum matter plastics composite and preparation method thereof.
Background technology
High additive height sal/plastics composite is a kind of advanced composite material based on wood powder/plastics composite technology, this material main component is silica-aluminum materials and environmentally-friendly plastic, silica-aluminum materials, environmentally-friendly plastic hardness is large, wear-resisting, corrosion-resistant, waterproof, stability are high, cycling processability is strong plurality of advantages have been merged in its perfection, be substitute wood, mould, the desirable material of the traditional material such as stone, porcelain, calcium, the field such as industry and covil construction can be widely used in.Because of low in resources consumption, produce pollution-free, Products Eco environmental protection, of many uses, can recycling, be described as 21st century most economy and the ecological, environmental protective novel material of use value.
At building materials field, the main substitute being used as natural timber of high additive height sal/plastics composite, in order to reduce the loss of timber resources.Compared with traditional wood plastic composite, high additive height sal/plastics composite performance is more excellent, and as higher in hardness, manufacturing cost is lower.In matrix material use procedure, people are concerned about most or its endurance quality.
Development of the West Regions is the important component part of China's modernization strategy.Western drought, the forest reserves are deficient, and silica-aluminum materials amount is large, wide, is suitable for very much developing high additive height sal/plastics composite; And the typical harsh and unforgiving environments main manifestations in western part is the aspects such as solar ultraviolet radiation is strong, high and cold and day and night temperature is large, climatic anomaly are dry, this harsh and unforgiving environments requires higher to the weathering resistance of matrix material.
Application number be 201010176569.5 Chinese invention patent disclose a kind of multielement silicon-aluminium composite material, be made up of first, second, the third three components, the mass ratio of three components is: 1:0.3-1:0.05-0.2; Wherein, first component is powder raw material, and be take kaolin as the multielement silicon-aluminium mixture of main component, second component is liquid starting material, and be water glass and sodium hydroxide mixture, the third component is fortifying fibre.In described first component, by mass percentage, kaolin is 30%-70%, and other compounds are 30%-70%; Other described compounds are one or more mixing in silicon ash, flyash, coal gangue, slag, water granulated slag, and the granularity of described mixture is 200-600 order.In the technical scheme of above-mentioned patent disclosure, the how far silicon-aluminum mixture of first component to be kaolin be main component, and the sal that the present invention uses, mainly utilize the solid waste coal ash of coal-burning utilities, therefore, compare above-mentioned patent, matrix material of the present invention has excellent environment friendly.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and provide one to have strong mechanical performance and high-weatherability, high-weatherability doped silicon-aluminum matter plastics composite having energy-saving and environmental protection concurrently and preparation method thereof.
Object of the present invention can be achieved through the following technical solutions:
A kind of high-weatherability doped silicon-aluminum matter plastics composite, this matrix material comprises following component and weight part content: silica-aluminum materials 55-69 part, PE25-35 part, aluminate coupling agent 1-2.5 part, PE wax 1-5 part, paraffin 1-5 part and modified PE 3-3.5 part.
Described matrix material also comprises wood powder 5-10 part.
Mass content >=55% of silica-aluminum materials in described matrix material.
The specific surface area of described silica-aluminum materials is 220-260m
2/ kg.
The density of described silica-aluminum materials is 1500-1800kg/m
3.
Described PE is selected from commercially available HDPE or LDPE.
The relative molecular weight of described PE wax is 500-1000.
Described modified PE is selected from commercially available cis-butenedioic anhydride modified poly ethylene.
A preparation method for high-weatherability doped silicon-aluminum matter plastics composite, the method specifically comprises the following steps:
(1) get the raw materials ready by following component and weight part:
Silica-aluminum materials 55-69 part, PE25-35 part, aluminate coupling agent 1-2.5 part, PE wax 1-5 part, paraffin 1-5 part and modified PE 3-3.5 part;
(2) said components joined together in high-speed mixer by weight, control rotating speed is 1500-3000r/min, high-speed mixing 20-40 minute, then through plasticizing extruder grain, the obtained pellet mixed;
(3) pellet is left standstill 12-24 hour, by plastifying fusion, extrusion moulding, i.e. obtained described high-weatherability doped silicon-aluminum matter plastics composite.
Wherein, the component in step (1) also comprises wood powder 5-10 part.
The present invention makes full use of sal raw material feature widely, utilize high additive sal trade waste and plastics compound, prepare the matrix material simultaneously with strong mechanical performance and high-weatherability, thus energy-saving and environmental protection effect is had concurrently while reaching higher force performance and high-weatherability, and then relatively reduce cost, improve the competitiveness of product in market.
The doped silicon-aluminum matter plastics composite 24h water-intake rate that the present invention obtains is 0.26%, and the bending load retention rate after resistance to artificial weathering is >=85%, and the bending load retention rate after freeze thawing is >=90%.
In matrix material provided by the invention, make full use of trade waste and the plastics compound of silicon-aluminum containing, make its utilization ratio in the composite reach more than 55%; Various starting material had both had not same-action, interacted again, and preparation technology's design also all differs from one another.First, two kinds of functions of matrix material of the present invention are realized by two kinds of approach: the interface structure closely that mechanical property relies on the efficient cohesive action of plastics and mechanical presses moulding process to be formed; Secondly, weather resistance suppresses its photooxidation droping and is greatly improved after relying on silica-aluminum materials to mix.
Compared with prior art, the present invention has following characteristics:
1) diversity of starting material selection, silica-aluminum materials of the present invention is trade waste, is a kind of less energy-consumption material, and conventional filler for plastic needs the energy consumption consumption such as grinding, so the present invention can reduce production energy consumption, economize on resources, have more the market competitiveness;
2) mass-producing, preparation method of the present invention is simple, does not need special technique, is suitable for large-scale industrial production, easily produce scale and benefit;
3) high-weatherability, compared with Traditional Wood moulding material, the present invention is except higher mechanical property, and it has again good weathering resistance, can play more permanent effect under alternation of wetting and drying and freeze-thaw cycle interaction rugged environment;
4) low cost, preparation technology of the present invention is simple, and utilizes refuse in a large number, with low cost.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1:
The present embodiment high-weatherability doped silicon-aluminum matter plastics composite, comprises following component and weight part content: silica-aluminum materials 55 parts, PE35 part, aluminate coupling agent 2.5 parts, 2 parts, PE wax, 2.5 parts, paraffin and modified PE 3 parts.
Wherein, the specific surface area of silica-aluminum materials is 260m
2/ kg, the density of silica-aluminum materials is 1800kg/m
3.PE is selected from commercially available HDPE, and the relative molecular weight of PE wax is 1000, and modified PE is selected from commercially available cis-butenedioic anhydride grafted polyethylene.
The preparation method of the present embodiment high-weatherability doped silicon-aluminum matter plastics composite, specifically comprises the following steps:
(1) get the raw materials ready by following component and weight part:
Silica-aluminum materials 55 parts, PE35 part, aluminate coupling agent 2.5 parts, 2 parts, PE wax, 2.5 parts, paraffin and modified PE 3 parts;
(2) said components joined together in high-speed mixer by weight, control rotating speed is 3000r/min, high-speed mixing 20 minutes, then through plasticizing extruder grain, the obtained pellet mixed;
(3) pellet is left standstill 12 hours, by plastifying fusion, extrusion moulding, i.e. obtained described high-weatherability doped silicon-aluminum matter plastics composite.
Embodiment 2:
The present embodiment high-weatherability doped silicon-aluminum matter plastics composite, comprises following component and weight part content: silica-aluminum materials 65 parts, PE35 part, aluminate coupling agent 2 parts, 2 parts, PE wax, 2.5 parts, paraffin and modified PE 3.5 parts.
Wherein, the specific surface area of silica-aluminum materials is 240m
2/ kg, the density of silica-aluminum materials is 1650kg/m
3.PE is selected from commercially available HDPE, and the relative molecular weight of PE wax is 800, and modified PE is selected from commercially available cis-butenedioic anhydride grafted polyethylene.
The preparation method of the present embodiment high-weatherability doped silicon-aluminum matter plastics composite, specifically comprises the following steps:
(1) get the raw materials ready by following component and weight part:
Silica-aluminum materials 65 parts, PE35 part, aluminate coupling agent 2 parts, 2 parts, PE wax, 2.5 parts, paraffin and modified PE 3.5 parts;
(2) said components joined together in high-speed mixer by weight, control rotating speed is 3000r/min, high-speed mixing 20 minutes, then through plasticizing extruder grain, the obtained pellet mixed;
(3) pellet is left standstill 12 hours, by plastifying fusion, extrusion moulding, i.e. obtained described high-weatherability doped silicon-aluminum matter plastics composite.
Embodiment 3:
The present embodiment high-weatherability doped silicon-aluminum matter plastics composite, comprises following component and weight part content: silica-aluminum materials 65 parts, PE25 part, aluminate coupling agent 2 parts, 2 parts, PE wax, 2.5 parts, paraffin and modified PE 3.5 parts.
Wherein, the specific surface area of silica-aluminum materials is 240m
2/ kg, the density of silica-aluminum materials is 1600kg/m
3.PE is selected from commercially available HDPE, and the relative molecular weight of PE wax is 800, and modified PE is selected from commercially available cis-butenedioic anhydride grafted polyethylene.
The preparation method of the present embodiment high-weatherability doped silicon-aluminum matter plastics composite, specifically comprises the following steps:
(1) get the raw materials ready by following component and weight part:
Silica-aluminum materials 65 parts, PE25 part, aluminate coupling agent 2 parts, 2 parts, PE wax, 2.5 parts, paraffin and modified PE 3.5 parts;
(2) said components joined together in high-speed mixer by weight, control rotating speed is 3000r/min, high-speed mixing 20 minutes, then through plasticizing extruder grain, the obtained pellet mixed;
(3) pellet is left standstill 12 hours, by plastifying fusion, extrusion moulding, i.e. obtained described high-weatherability doped silicon-aluminum matter plastics composite.
Table 1 is depicted as embodiment 1-3 composite-material formula.
Table 1 composite sheet (solid slab) is filled a prescription
Adopt the solid composite sheet material that the matrix material of embodiment 1-3 is made, carry out flexural strength test, be of a size of thickness of slab 28mm, width is about 70mm, measure-alike during other performance tests.Solid composite sheet material mechanical experimental results is as shown in table 2, and after the heat-proof aging test of solid composite sheet material, maximum deflection load retention rate is as shown in table 3, and after the freeze thawing of solid composite sheet material, maximum deflection load retention rate is as shown in table 4.
Table 2 solid composite sheet material mechanical experimental results
Maximum deflection load retention rate after the test of table 3 solid composite sheet material heat-proof aging
Above-mentioned heat-proof aging test is carried out according to the regulation of A method in GB/T16422.2-1999, and blackboard temperature is 65 ± 3 DEG C, and relative humidity is (50 ± 5) %, irradiance 290nm-800nm, 550W/m
2, digestion time is 2000h.
Maximum deflection load retention rate after the freeze thawing of table 4 solid composite sheet material
When carrying out freezing and thawing test, sample to be dipped in room temperature water 24 hours, then, it is 24h in the freezing device of-29 ± 1 DEG C that sample is placed on temperature, after enduring cold, again sample is placed in room temperature environment 24h, this process is one-period, circulates three cycles, finally, under room temperature condition, place 1h again, measure the fracture load by bending of sample subsequently.
As can be seen from table 3 test-results, the solid composite sheet material adopting embodiment 1-3 matrix material to make all has excellent heat aging property, and after heat-proof aging test, maximum deflection load retention rate, all more than 80%, reaches as high as 85.0%; And in freeze thawing, the solid composite sheet material that employing embodiment 1-3 matrix material is made is after freezing and thawing test, maximum deflection load retention rate also can remain on more than 80%, reaches as high as 86.7%.As can be seen here, the present invention makes full use of the suppression photooxidation droping effect of silica-aluminum materials and the adhesive property of plastics, makes the matrix material obtained while possessing excellent mechanical performance, also has excellent weather resistance concurrently.
Embodiment 4:
The present embodiment high-weatherability doped silicon-aluminum matter plastics composite, comprises following component and weight part content: silica-aluminum materials 69 parts, PE32 part, aluminate coupling agent 1 part, 5 parts, PE wax, 1 part, paraffin and modified PE 3 parts.
Wherein, the specific surface area of silica-aluminum materials is 220m
2/ kg, the density of silica-aluminum materials is 1500kg/m
3.PE is selected from commercially available LDPE, and the relative molecular weight of PE wax is 500, and modified PE is selected from commercially available cis-butenedioic anhydride grafted polyethylene.
The preparation method of the present embodiment high-weatherability doped silicon-aluminum matter plastics composite, specifically comprises the following steps:
(1) get the raw materials ready by following component and weight part:
Silica-aluminum materials 69 parts, PE32 part, aluminate coupling agent 1 part, 5 parts, PE wax, 1 part, paraffin and modified PE 3 parts;
(2) said components joined together in high-speed mixer by weight, control rotating speed is 1500r/min, high-speed mixing 40 minutes, then through plasticizing extruder grain, the obtained pellet mixed;
(3) pellet is left standstill 24 hours, by plastifying fusion, extrusion moulding, i.e. obtained described high-weatherability doped silicon-aluminum matter plastics composite.
Embodiment 5:
The present embodiment high-weatherability doped silicon-aluminum matter plastics composite, comprises following component and weight part content: silica-aluminum materials 62 parts, PE35 part, aluminate coupling agent 1.8 parts, 1 part, PE wax, 5 parts, paraffin and modified PE 3.2 parts.
Wherein, the specific surface area of silica-aluminum materials is 260m
2/ kg, the density of silica-aluminum materials is 1800kg/m
3.PE is selected from commercially available LDPE, and the relative molecular weight of PE wax is 600, and modified PE is selected from commercially available cis-butenedioic anhydride grafted polyethylene.
The preparation method of the present embodiment high-weatherability doped silicon-aluminum matter plastics composite, specifically comprises the following steps:
(1) get the raw materials ready by following component and weight part:
Silica-aluminum materials 62 parts, PE35 part, aluminate coupling agent 1.8 parts, 1 part, PE wax, 5 parts, paraffin and modified PE 3.2 parts.；
(2) said components joined together in high-speed mixer by weight, control rotating speed is 2500r/min, high-speed mixing 35 minutes, then through plasticizing extruder grain, the obtained pellet mixed;
(3) pellet is left standstill 18 hours, by plastifying fusion, extrusion moulding, i.e. obtained described high-weatherability doped silicon-aluminum matter plastics composite.
Embodiment 6:
The present embodiment high-weatherability doped silicon-aluminum matter plastics composite, comprises following component and weight part content: silica-aluminum materials 58 parts, PE32 part, aluminate coupling agent 2.1 parts, 3 parts, PE wax, 2 parts, paraffin, modified PE 3.5 parts and wood powder 10 parts.
Wherein, the specific surface area of silica-aluminum materials is 250m
2/ kg, the density of silica-aluminum materials is 1700kg/m
3.PE is selected from commercially available LDPE, and the relative molecular weight of PE wax is 900, and modified PE is selected from commercially available cis-butenedioic anhydride grafted polyethylene.
The preparation method of the present embodiment high-weatherability doped silicon-aluminum matter plastics composite, specifically comprises the following steps:
(1) get the raw materials ready by following component and weight part:
Silica-aluminum materials 58 parts, PE32 part, aluminate coupling agent 2.1 parts, 3 parts, PE wax, 2 parts, paraffin, modified PE 3.5 parts and wood powder 10 parts;
(2) said components joined together in high-speed mixer by weight, control rotating speed is 2800r/min, high-speed mixing 25 minutes, then through plasticizing extruder grain, the obtained pellet mixed;
(3) pellet is left standstill 14 hours, by plastifying fusion, extrusion moulding, i.e. obtained described high-weatherability doped silicon-aluminum matter plastics composite.
Embodiment 7:
The present embodiment high-weatherability doped silicon-aluminum matter plastics composite, comprises following component and weight part content: silica-aluminum materials 65 parts, PE27 part, aluminate coupling agent 2 parts, 4 parts, PE wax, 3 parts, paraffin, modified PE 3 parts and wood powder 5 parts.
Wherein, the specific surface area of silica-aluminum materials is 240m
2/ kg, the density of silica-aluminum materials is 1500kg/m
3.PE is selected from commercially available HDPE, and the relative molecular weight of PE wax is 1000, and modified PE is selected from commercially available cis-butenedioic anhydride modified poly ethylene.
The preparation method of the present embodiment high-weatherability doped silicon-aluminum matter plastics composite, specifically comprises the following steps:
(1) get the raw materials ready by following component and weight part:
Silica-aluminum materials 65 parts, PE27 part, aluminate coupling agent 2 parts, 4 parts, PE wax, 3 parts, paraffin, modified PE 3 parts and wood powder 5 parts;
(2) said components joined together in high-speed mixer by weight, control rotating speed is 1600r/min, high-speed mixing 30 minutes, then through plasticizing extruder grain, the obtained pellet mixed;
(3) pellet is left standstill 12 hours, by plastifying fusion, extrusion moulding, i.e. obtained described high-weatherability doped silicon-aluminum matter plastics composite.
Claims (10)
1. a high-weatherability doped silicon-aluminum matter plastics composite, is characterized in that, this matrix material comprises following component and weight part content: silica-aluminum materials 55-69 part, PE25-35 part, aluminate coupling agent 1-2.5 part, PE wax 1-5 part, paraffin 1-5 part and modified PE 3-3.5 part.
2. a kind of high-weatherability doped silicon-aluminum matter plastics composite according to claim 1, it is characterized in that, described matrix material also comprises wood powder 5-10 part.
3. a kind of high-weatherability doped silicon-aluminum matter plastics composite according to claim 2, is characterized in that, mass content >=55% of silica-aluminum materials in described matrix material.
4. a kind of high-weatherability doped silicon-aluminum matter plastics composite according to claim 1, it is characterized in that, the specific surface area of described silica-aluminum materials is 220-260m
2/ kg.
5. a kind of high-weatherability doped silicon-aluminum matter plastics composite according to claim 1, it is characterized in that, the density of described silica-aluminum materials is 1500-1800kg/m
3.
6. a kind of high-weatherability doped silicon-aluminum matter plastics composite according to claim 1, it is characterized in that, described PE is selected from commercially available HDPE or LDPE.
7. a kind of high-weatherability doped silicon-aluminum matter plastics composite according to claim 1, it is characterized in that, the relative molecular weight of described PE wax is 500-1000.
8. a kind of high-weatherability doped silicon-aluminum matter plastics composite according to claim 1, it is characterized in that, described modified PE is selected from commercially available cis-butenedioic anhydride modified poly ethylene.
9. a preparation method for high-weatherability doped silicon-aluminum matter plastics composite as claimed in claim 1, it is characterized in that, the method specifically comprises the following steps:
(1) get the raw materials ready by following component and weight part:
Silica-aluminum materials 55-69 part, PE25-35 part, aluminate coupling agent 1-2.5 part, PE wax 1-5 part, paraffin 1-5 part and modified PE 3-3.5 part;
(2) said components joined together in high-speed mixer by weight, control rotating speed is 1500-3000r/min, high-speed mixing 20-40 minute, then through plasticizing extruder grain, the obtained pellet mixed;
(3) pellet is left standstill 12-24 hour, by plastifying fusion, extrusion moulding, i.e. obtained described high-weatherability doped silicon-aluminum matter plastics composite.
10. the preparation method of a kind of high-weatherability doped silicon-aluminum matter plastics composite according to claim 9, it is characterized in that, the component in step (1) also comprises wood powder 5-10 part.
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| CN104559279A (en) * | 2015-02-03 | 2015-04-29 | 张以河 | Novel wood-plastic composite material |
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| CN101775167A (en) * | 2010-01-18 | 2010-07-14 | 河南省科学院同位素研究所有限责任公司 | Environment protective plastic-wood composite material and preparation method thereof |
| CN104448601A (en) * | 2013-09-13 | 2015-03-25 | 北京恒通创新赛木科技股份有限公司 | Composite wall material composition, preparation method of composite wall material composition and composite wall material |
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