CN108912541A - A kind of Wood-plastic foam material with good impact strength - Google Patents
A kind of Wood-plastic foam material with good impact strength Download PDFInfo
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- CN108912541A CN108912541A CN201810649834.3A CN201810649834A CN108912541A CN 108912541 A CN108912541 A CN 108912541A CN 201810649834 A CN201810649834 A CN 201810649834A CN 108912541 A CN108912541 A CN 108912541A
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
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Abstract
The invention discloses a kind of Wood-plastic foam material with good impact strength, is related to new material technology field, is made of following component：Corvic, porous modified tapioca starch, pentaerythrite, nano zine oxide, foaming agent, rosin resin be, stearic acid, polyethylene glycol, lubricant, rare earth chloride, epoxidized soybean oil, calcium carbonate, acrylonitrile modified wood powder；The present invention is by optimizing formula, so that Wood-plastic material has superior mechanical performance, higher wear-resisting, bending resistance, impact strength.
Description
Technical field
The invention belongs to new material technology fields, and in particular to a kind of Wood-plastic foam material with good impact strength.
Background technique
Wood-plastic foam material then is mixed in a certain ratio with various plastics, and add by wood powder after processing appropriate
Enter some auxiliary agents, such as dispersing agent, plasticizer, foaming agent, through a kind of NEW TYPE OF COMPOSITE made of the techniques such as high temperature, extruding, molding
Foamed material has many advantages, such as corrosion resistant, heatproof, sound insulation, light, while alleviating wood for original pure woodwork
The problem of material scarcity of resources, reduces the cost of manufacture for pure plastic products, and reduces the destruction to environment,
Processability is also improved.
But find that the compatibility between wood powder and plastics is bad in actual processing, meanwhile, the wood plastic composite of preparation
Shock resistance is general, is unable to satisfy the demand in market.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of Wood-plastic foam material with good impact strength is provided
Material.
The present invention is achieved by the following technical solutions：
A kind of Wood-plastic foam material with good impact strength, is made of following component by weight：Corvic
95-99, porous modified tapioca starch 8-12, pentaerythrite 1-1.5, nano zine oxide 1.5-2.0, foaming agent 0.5-0.8, rosin
Resin is 3-5, stearic acid 2.1-2.5, polyethylene glycol 1.8-3.5, lubricant 0.3-0.5, rare earth chloride 0.01-0.03, epoxy
Soybean oil 3.4-4.6, calcium carbonate 7-10, acrylonitrile modified wood powder 46-50.
Further, the porous modified tapioca starch preparation method is：
(1) tapioca is heated to 120 DEG C, keeps the temperature 10min, be subsequently cooled to 40 DEG C, then by tapioca after cooling with
The phosphate dihydrogen salt solution that mass fraction is 3.8% presses 1:After the mixing of 5 mass ratioes, impregnates 2 hours, then filter, water at 40 DEG C
It washes, drying to constant weight；
(2) starch obtained above is pressed into 65g:The ratio of 320mL is added to the 3- pyridone solution that mass fraction is 0.36%
In, 95 DEG C are heated to, 45min is stirred with 2500r/min revolving speed, obtains mixed serum, mixed serum pH to 5.1 is adjusted, obtains
Acidic mixed slurries；
（3）The cellulase of its quality 0.18% is added into acidic mixed slurries obtained above, constant temperature is handled at 40.6 DEG C
5 hours, obtain enzymolysis liquid；
(3) sodium hypochlorite of its quality 0.1% is added into above-mentioned enzymolysis liquid, then stirring 30min is centrifuged, then
It cleans by deionized water to neutrality, drying to constant weight, crushes, and crosses 300 meshes to get modified porous starch.
Further, the step（1）Middle dihydric phosphate is potassium dihydrogen phosphate.
Further, the step（2）Middle adjusting mixed serum pH to 5.1 be use mass fraction for 5% hydrochloric acid solution
It is adjusted.
Further, the foaming agent is AC foaming agent.
Further, the lubricant is G60 type lubricant.
Further, the acrylonitrile modified wood powder preparation method is：
（1）Wood powder and deionized water are pressed into 100g：The ratio of 500mL mixes, and is heated to 68 DEG C, with the stirring of 1200r/min revolving speed
30min obtains wood powder mixed liquor, and the initiator of its quality 0.25% is added to wood powder mixed liquor, after mixing evenly, at 68 DEG C
Heat preservation；
（2）Acrylonitrile and tert-butyl chloro-silicane are pressed 20:After the mixing of 1 mass ratio, 55 DEG C are heated to, keeps the temperature 15min,
Obtain mixture；
（3）Above-mentioned mixture is pressed 1:15 mass ratios are added in wood powder mixed liquor, and the pH value for adjusting reaction system exists
5.5, temperature is adjusted to 86 DEG C, with 120r/min revolving speed stirring 2 hours, is then filtered, is cleaned using deionized water,
Vacuum drying to constant weight to get.
Further, the wood powder is eucalyptus wood powder.
Further, the initiator is ammonium peroxide.
The rare earth chloride is lanthanum chloride.
The present invention has the following advantages that compared with prior art：The present invention is modified place to eucalyptus wood powder by acrylonitrile
Reason, the selection by acrylonitrile monemer and eucalyptus wood powder are because the present invention obtains acrylonitrile monemer pair by lot of experiments
The modified effect of eucalyptus wood powder is best, in modifying process, acrylonitrile monemer to eucalyptus wood powder surface grafting rate can quickly and
Stablize, in modifying process, eucalyptus wood powder surface grafting active site is more, so that the activated centre caused is increased, by third
The modified wood powder surface property of alkene nitrile is significantly improved, and the compatibility between polyvinyl chloride molecule is significantly mentioned
Height, meanwhile, acrylonitrile modified wood powder disperses more uniform in compound system, can effectively improve the physical machine of composite material
Tool performance, especially impact strength improvement effect is significant, and Wood-plastic foam material of the invention is by adding porous modified cassava
The effect of starch can be effectively solved the various disadvantages between traditional wood powder and Corvic, can effectively drop
Frictional force between low material and mechanical equipment improves the processing flowability of material to reduce the abrasion of equipment, improves system
Product presentation quality makes the smooth extrusion molding of material；The synergistic effect of nano zine oxide and rosin resin improve material rigidity and
Anti- contracility energy.The present invention is by optimizing formula, so that Wood-plastic material has a superior mechanical performance, it is higher resistance to
Mill, bending resistance, impact strength.
Specific embodiment
Embodiment 1
A kind of Wood-plastic foam material with good impact strength, is made of following component by weight：Corvic
95, porous modified tapioca starch 8, pentaerythrite 1, nano zine oxide 1.5, foaming agent 0.5, rosin resin 3, stearic acid 2.1,
Polyethylene glycol 1.8, lubricant 0.3, rare earth chloride 0.01, epoxidized soybean oil 3.4, calcium carbonate 7, acrylonitrile modified wood powder 46.
Further, the porous modified tapioca starch preparation method is：
(1) tapioca is heated to 120 DEG C, keeps the temperature 10min, be subsequently cooled to 40 DEG C, then by tapioca after cooling with
The phosphate dihydrogen salt solution that mass fraction is 3.8% presses 1:After the mixing of 5 mass ratioes, impregnates 2 hours, then filter, water at 40 DEG C
It washes, drying to constant weight；
(2) starch obtained above is pressed into 65g:The ratio of 320mL is added to the 3- pyridone solution that mass fraction is 0.36%
In, 95 DEG C are heated to, 45min is stirred with 2500r/min revolving speed, obtains mixed serum, mixed serum pH to 5.1 is adjusted, obtains
Acidic mixed slurries；
（3）The cellulase of its quality 0.18% is added into acidic mixed slurries obtained above, constant temperature is handled at 40.6 DEG C
5 hours, obtain enzymolysis liquid；
(3) sodium hypochlorite of its quality 0.1% is added into above-mentioned enzymolysis liquid, then stirring 30min is centrifuged, then
It cleans by deionized water to neutrality, drying to constant weight, crushes, and crosses 300 meshes to get modified porous starch.
Further, the step（1）Middle dihydric phosphate is potassium dihydrogen phosphate.
Further, the step（2）Middle adjusting mixed serum pH to 5.1 be use mass fraction for 5% hydrochloric acid solution
It is adjusted.
Further, the foaming agent is AC foaming agent.
Further, the lubricant is G60 type lubricant.
Further, the acrylonitrile modified wood powder preparation method is：
（1）Wood powder and deionized water are pressed into 100g：The ratio of 500mL mixes, and is heated to 68 DEG C, with the stirring of 1200r/min revolving speed
30min obtains wood powder mixed liquor, and the initiator of its quality 0.25% is added to wood powder mixed liquor, after mixing evenly, at 68 DEG C
Heat preservation；
（2）Acrylonitrile and tert-butyl chloro-silicane are pressed 20:After the mixing of 1 mass ratio, 55 DEG C are heated to, keeps the temperature 15min,
Obtain mixture；
（3）Above-mentioned mixture is pressed 1:15 mass ratios are added in wood powder mixed liquor, and the pH value for adjusting reaction system exists
5.5, temperature is adjusted to 86 DEG C, with 120r/min revolving speed stirring 2 hours, is then filtered, is cleaned using deionized water,
Vacuum drying to constant weight to get.
Further, the wood powder is eucalyptus wood powder.
Further, the initiator is ammonium peroxide.
Embodiment 2
A kind of Wood-plastic foam material with good impact strength, is made of following component by weight：Corvic
99, porous modified tapioca starch 12, pentaerythrite 1.5, nano zine oxide 2.0, foaming agent 0.8, rosin resin 5, stearic acid
2.5, polyethylene glycol 3.5, lubricant 0.5, rare earth chloride 0.03, epoxidized soybean oil 4.6, calcium carbonate 10, acrylonitrile modified wood powder
50。
Further, the porous modified tapioca starch preparation method is：
(1) tapioca is heated to 120 DEG C, keeps the temperature 10min, be subsequently cooled to 40 DEG C, then by tapioca after cooling with
The phosphate dihydrogen salt solution that mass fraction is 3.8% presses 1:After the mixing of 5 mass ratioes, impregnates 2 hours, then filter, water at 40 DEG C
It washes, drying to constant weight；
(2) starch obtained above is pressed into 65g:The ratio of 320mL is added to the 3- pyridone solution that mass fraction is 0.36%
In, 95 DEG C are heated to, 45min is stirred with 2500r/min revolving speed, obtains mixed serum, mixed serum pH to 5.1 is adjusted, obtains
Acidic mixed slurries；
（3）The cellulase of its quality 0.18% is added into acidic mixed slurries obtained above, constant temperature is handled at 40.6 DEG C
5 hours, obtain enzymolysis liquid；
(3) sodium hypochlorite of its quality 0.1% is added into above-mentioned enzymolysis liquid, then stirring 30min is centrifuged, then
It cleans by deionized water to neutrality, drying to constant weight, crushes, and crosses 300 meshes to get modified porous starch.
Further, the step（1）Middle dihydric phosphate is potassium dihydrogen phosphate.
Further, the step（2）Middle adjusting mixed serum pH to 5.1 be use mass fraction for 5% hydrochloric acid solution
It is adjusted.
Further, the foaming agent is AC foaming agent.
Further, the lubricant is G60 type lubricant.
Further, the acrylonitrile modified wood powder preparation method is：
（1）Wood powder and deionized water are pressed into 100g：The ratio of 500mL mixes, and is heated to 68 DEG C, with the stirring of 1200r/min revolving speed
30min obtains wood powder mixed liquor, and the initiator of its quality 0.25% is added to wood powder mixed liquor, after mixing evenly, at 68 DEG C
Heat preservation；
（2）Acrylonitrile and tert-butyl chloro-silicane are pressed 20:After the mixing of 1 mass ratio, 55 DEG C are heated to, keeps the temperature 15min,
Obtain mixture；
（3）Above-mentioned mixture is pressed 1:15 mass ratios are added in wood powder mixed liquor, and the pH value for adjusting reaction system exists
5.5, temperature is adjusted to 86 DEG C, with 120r/min revolving speed stirring 2 hours, is then filtered, is cleaned using deionized water,
Vacuum drying to constant weight to get.
Further, the wood powder is eucalyptus wood powder.
Further, the initiator is ammonium peroxide.
Embodiment 3
A kind of Wood-plastic foam material with good impact strength, is made of following component by weight：Corvic
96, porous modified tapioca starch 10, pentaerythrite 1.2, nano zine oxide 1.8, foaming agent 0.6, rosin resin 4, stearic acid
2.3, polyethylene glycol 1.9, lubricant 0.4, rare earth chloride 0.02, epoxidized soybean oil 3.8, calcium carbonate 9, acrylonitrile modified wood powder
49。
Further, the porous modified tapioca starch preparation method is：
(1) tapioca is heated to 120 DEG C, keeps the temperature 10min, be subsequently cooled to 40 DEG C, then by tapioca after cooling with
The phosphate dihydrogen salt solution that mass fraction is 3.8% presses 1:After the mixing of 5 mass ratioes, impregnates 2 hours, then filter, water at 40 DEG C
It washes, drying to constant weight；
(2) starch obtained above is pressed into 65g:The ratio of 320mL is added to the 3- pyridone solution that mass fraction is 0.36%
In, 95 DEG C are heated to, 45min is stirred with 2500r/min revolving speed, obtains mixed serum, mixed serum pH to 5.1 is adjusted, obtains
Acidic mixed slurries；
（3）The cellulase of its quality 0.18% is added into acidic mixed slurries obtained above, constant temperature is handled at 40.6 DEG C
5 hours, obtain enzymolysis liquid；
(3) sodium hypochlorite of its quality 0.1% is added into above-mentioned enzymolysis liquid, then stirring 30min is centrifuged, then
It cleans by deionized water to neutrality, drying to constant weight, crushes, and crosses 300 meshes to get modified porous starch.
Further, the step（1）Middle dihydric phosphate is potassium dihydrogen phosphate.
Further, the step（2）Middle adjusting mixed serum pH to 5.1 be use mass fraction for 5% hydrochloric acid solution
It is adjusted.
Further, the foaming agent is AC foaming agent.
Further, the lubricant is G60 type lubricant.
Further, the acrylonitrile modified wood powder preparation method is：
（1）Wood powder and deionized water are pressed into 100g：The ratio of 500mL mixes, and is heated to 68 DEG C, with the stirring of 1200r/min revolving speed
30min obtains wood powder mixed liquor, and the initiator of its quality 0.25% is added to wood powder mixed liquor, after mixing evenly, at 68 DEG C
Heat preservation；
（2）Acrylonitrile and tert-butyl chloro-silicane are pressed 20:After the mixing of 1 mass ratio, 55 DEG C are heated to, keeps the temperature 15min,
Obtain mixture；
（3）Above-mentioned mixture is pressed 1:15 mass ratios are added in wood powder mixed liquor, and the pH value for adjusting reaction system exists
5.5, temperature is adjusted to 86 DEG C, with 120r/min revolving speed stirring 2 hours, is then filtered, is cleaned using deionized water,
Vacuum drying to constant weight to get.
Further, the wood powder is eucalyptus wood powder.
Further, the initiator is ammonium peroxide.
Comparative example 1：The eucalyptus wood for being only that and acrylonitrile modified wood powder being replaced with to unmodified processing is distinguished with embodiment 1
Powder.
Comparative example 2：It is only that with the difference of embodiment 1 and eucalyptus wood powder is replaced with into paulownia wood powder.
Comparative example 3：It is only that with the difference of embodiment 1 using application number：201610468947.4 method is modified eucalyptus wood powder.
Comparative example 4：It is only that with the difference of embodiment 1 and porous modified tapioca starch is replaced with into etherificate tapioca.
Control group：Application number 201410257524.9.
Test
Using processing technology to the Wood-plastic foam material sample of manufactured same size in embodiment and comparative example, performance inspection is carried out
It surveys, specific correlation data is as shown in table 1 below（Impact strength tests notch impact strength according to GB/T1043-2008；Bending strength
Three-point bending strength, central span 65cm, loading speed 10mm/min are tested according to GB/T9341-2008）：
Table 1
The present invention prepares Wood-plastic foam material with good impact strength and bending strength as can be seen from Table 1.
Claims (9)
1. a kind of Wood-plastic foam material with good impact strength, which is characterized in that be made by weight of following component：
Corvic 95-99, porous modified tapioca starch 8-12, pentaerythrite 1-1.5, nano zine oxide 1.5-2.0, foaming agent
0.5-0.8, rosin resin 3-5, stearic acid 2.1-2.5, polyethylene glycol 1.8-3.5, lubricant 0.3-0.5, rare earth chloride
0.01-0.03, epoxidized soybean oil 3.4-4.6, calcium carbonate 7-10, acrylonitrile modified wood powder 46-50.
2. a kind of Wood-plastic foam material with good impact strength according to claim 1, which is characterized in that described more
Hole modified tapioca starch preparation method is：
(1) tapioca is heated to 120 DEG C, keeps the temperature 10min, be subsequently cooled to 40 DEG C, then by tapioca after cooling with
The phosphate dihydrogen salt solution that mass fraction is 3.8% presses 1:After the mixing of 5 mass ratioes, impregnates 2 hours, then filter, water at 40 DEG C
It washes, drying to constant weight；
(2) starch obtained above is pressed into 65g:The ratio of 320mL is added to the 3- pyridone solution that mass fraction is 0.36%
In, 95 DEG C are heated to, 45min is stirred with 2500r/min revolving speed, obtains mixed serum, mixed serum pH to 5.1 is adjusted, obtains
Acidic mixed slurries；
（3）The cellulase of its quality 0.18% is added into acidic mixed slurries obtained above, constant temperature is handled at 40.6 DEG C
5 hours, obtain enzymolysis liquid；
(3) sodium hypochlorite of its quality 0.1% is added into above-mentioned enzymolysis liquid, then stirring 30min is centrifuged, then
It cleans by deionized water to neutrality, drying to constant weight, crushes, and crosses 300 meshes to get modified porous starch.
3. a kind of Wood-plastic foam material with good impact strength according to claim 2, which is characterized in that the step
Suddenly（1）Middle dihydric phosphate is potassium dihydrogen phosphate.
4. a kind of Wood-plastic foam material with good impact strength according to claim 2, which is characterized in that the step
Suddenly（2）Middle adjusting mixed serum pH to 5.1 is that mass fraction is used to be adjusted for 5% hydrochloric acid solution.
5. a kind of Wood-plastic foam material with good impact strength according to claim 1, which is characterized in that the hair
Infusion is AC foaming agent.
6. a kind of Wood-plastic foam material with good impact strength according to claim 1, which is characterized in that the profit
Lubrication prescription is G60 type lubricant.
7. a kind of Wood-plastic foam material with good impact strength according to claim 1, which is characterized in that described third
Alkene nitrile modified wood powder preparation method is：
（1）Wood powder and deionized water are pressed into 100g：The ratio of 500mL mixes, and is heated to 68 DEG C, with the stirring of 1200r/min revolving speed
30min obtains wood powder mixed liquor, and the initiator of its quality 0.25% is added to wood powder mixed liquor, after mixing evenly, at 68 DEG C
Heat preservation；
（2）Acrylonitrile and tert-butyl chloro-silicane are pressed 20:After the mixing of 1 mass ratio, 55 DEG C are heated to, keeps the temperature 15min,
Obtain mixture；
（3）Above-mentioned mixture is pressed 1:15 mass ratios are added in wood powder mixed liquor, and the pH value for adjusting reaction system exists
5.5, temperature is adjusted to 86 DEG C, with 120r/min revolving speed stirring 2 hours, is then filtered, is cleaned using deionized water,
Vacuum drying to constant weight to get.
8. a kind of Wood-plastic foam material with good impact strength according to claim 7, which is characterized in that the wood
Powder is eucalyptus wood powder.
9. a kind of Wood-plastic foam material with good impact strength according to claim 7, which is characterized in that described to draw
Hair agent is ammonium peroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810649834.3A CN108912541A (en) | 2018-06-22 | 2018-06-22 | A kind of Wood-plastic foam material with good impact strength |
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| CN201810649834.3A CN108912541A (en) | 2018-06-22 | 2018-06-22 | A kind of Wood-plastic foam material with good impact strength |
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| CN104312053A (en) * | 2014-11-06 | 2015-01-28 | 安徽省三乐门窗幕墙工程有限公司 | Green and environment-friendly PVC (polyvinyl chloride) wood-plastic composite material and preparation method thereof |
| CN106366496A (en) * | 2016-08-30 | 2017-02-01 | 桂林全州燎原科技有限责任公司 | Polyvinyl chloride (PVC) wood-plastic foam board and preparation method thereof |
| US20170190861A1 (en) * | 2016-01-04 | 2017-07-06 | Sing Pong International Co., Ltd. | Material Composition for Making Exercise Mat and Manufacturing Method of Exercise Mat |
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| CN104312053A (en) * | 2014-11-06 | 2015-01-28 | 安徽省三乐门窗幕墙工程有限公司 | Green and environment-friendly PVC (polyvinyl chloride) wood-plastic composite material and preparation method thereof |
| US20170190861A1 (en) * | 2016-01-04 | 2017-07-06 | Sing Pong International Co., Ltd. | Material Composition for Making Exercise Mat and Manufacturing Method of Exercise Mat |
| CN106366496A (en) * | 2016-08-30 | 2017-02-01 | 桂林全州燎原科技有限责任公司 | Polyvinyl chloride (PVC) wood-plastic foam board and preparation method thereof |
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