CN1876699A - Microwave radioradiation crosslinked complete biodegradable material and its processing method - Google Patents
Microwave radioradiation crosslinked complete biodegradable material and its processing method Download PDFInfo
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- CN1876699A CN1876699A CN 200510042794 CN200510042794A CN1876699A CN 1876699 A CN1876699 A CN 1876699A CN 200510042794 CN200510042794 CN 200510042794 CN 200510042794 A CN200510042794 A CN 200510042794A CN 1876699 A CN1876699 A CN 1876699A
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Abstract
The invention relates the microwave radio-frequency radiation cross-linking biodegradation material, comprising starch, cellulose, A, aminocaprolactam or polyatomic alcohol, B, coupling agent, C, nucleation agent, D, undecylenic acid, calcium carbonate, natrii chloridum, and urea. The method comprises the following steps: mixing the raw material, cross linking with microwave radio-frequency device, foaming, forming, and getting the product. The invention solves the problems of no degradation, complex procedure, high cost and hard technology. The product has the advantages of good draftability, suppleness and obstructing property. The invention has the advantages of wide application area, completely degradation and non pollution. The invention also has the advantages of simple technology, easy operation and low cost.
Description
Technical field
The present invention relates to a kind of microwave radioradiation crosslinked complete biodegradable material and working method thereof.
Background technology
Mould class packing materials such as traditional electrical package, food and drink tool and mulch film, handbag, bag, it mainly adopts raw materials such as polystyrene, polypropylene, polyethylene, ethylene-vinyl acetate copolymer, polyvinyl alcohol, auxiliary dose thing and be generally degradable starch or photosensitizers or whipping agent etc., the single, double screw rod granulation of the general employing of production technique, extrude compressing tablet with forcing machine again, after just/negative pressure plastic uptake, molded or flow casting molding.Mainly there is following shortcoming in it:
1. product can not be degraded or can not be degraded fully, is difficult to reclaim, and environment is caused severe contamination.
2. product harm is big.Adopt photosensitizers, environment is polluted; Adopt fluorine Lyons to make whipping agent, environmental pollution is serious; Adopt formaldehyde to make linking agent, be detrimental to health.Material easily decomposes (degraded), coking, and course of processing carbon deposit is serious, the dirty obnoxious flavour that belongs to of workshop air.
3. the employing ir radiation is crosslinked, crosslinked, grafting efficiency is low; Adopt chemical cross-linking agent, not only crosslinked, grafting efficiency is low, and also product performance are poor.
4. though some product can be degraded fully, disadvantage is bigger.As
1) polyvinyl alcohol needs to use casting method production as the film series products, the energy consumption height, and the production cost height, and the product water-repellancy is poor, and application limit is big, as, can not make agricultural mulching etc.; And poly(lactic acid), poly-own lactones, polyhydroxybutyrate etc. are because of self performance is inferior, and productive rate is low, and must mix the just required application performance of tool with other material, and is with high costs;
2) vegetable fibre in the raw material generally adopts straw etc., and not only weight is big, the water-intake rate height, and physical and mechanical propertiess such as stretchiness, flexibility are poor, and cost is also higher, is difficult to apply;
3) barrier is poor.Barrier property to gas, oil, water and smell, heat etc. is relatively poor, and fresh-keeping effect is bad;
4) paper products needs to use a large amount of xylogen, destroys ecological; Waste water environmental pollution in the paper pulp processing is serious, and product cost is also higher.
5. production process complexity, the cycle is long.
6. processing parameter is strict, is difficult to control, and yield rate is low; As, in the production technique raw material moisture content is required very strictness, be difficult to reach, and feedstock property easily absorbs water, the physical and mechanical properties of suction back product can be very poor, is difficult to reach service requirements.
7. production cost height.
1) equipment funds have high input;
2) generally all have scrap stock to produce, waste of material is serious;
3) need to use water cooling during single, double screw rod is extruded, current consumption is also higher;
4) the action required personnel are many, and operator's technical ability required high;
5) need in the product processing with moulds such as a large amount of punching blocks, aluminum dipping forms, Mould Machining complexity, difficulty also make cost increase.
8. adopt single, double screw extrusion press, molded or with process using such as foaming all are the hot-forming of external heating mode, heat conduction efficiency is low, temperature homogeneity is bad, and is big to product performance influences.
9. easily produce static and dust suction in the course of processing, high to the dustproof facilities requirement of production environment.
10. traditional foaming method is difficult to the control abscess-size, and distribution of cells is inhomogeneous, causes product performance poor.
Summary of the invention
The object of the present invention is to provide a kind of microwave radioradiation crosslinked complete biodegradable material and working method thereof, it has solved can not degrade in the background technology or can not degrade fully, or the production process complexity, and the cost height is realized the big technical problem of difficulty.
Technical solution of the present invention is:
A kind of microwave radioradiation crosslinked complete biodegradable material, its special character is: it contains by weight
1) starch is 10～100 parts; 1～50 part of Mierocrystalline cellulose; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 0～50 part; 0～5 part of nucleator;
3) the D material is 0～2 part; 0～2 part of undecylenic acid; 0～20 part in lime carbonate; 0～3 part in sodium-chlor; 0～6 part of urea;
4) content of water in overall composition is controlled to≤8% by weight percentage.
The suitable component of above-mentioned microwave radioradiation crosslinked complete biodegradable material can contain by weight
1) starch is 10～100 parts; 1～50 part of Mierocrystalline cellulose; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 1～50 part; 0.1～5 part of nucleator;
3) the D material is 0～2 part; 0～2 part of undecylenic acid; 0～20 part in lime carbonate; 0～3 part in sodium-chlor; 0～6 part of urea;
4) content of water in this overall composition by weight percentage≤8%.
The preferred range of above-mentioned microwave radioradiation crosslinked complete biodegradable material preferred component can contain by weight
1) starch is 10～100 parts; 2～20 parts of Mierocrystalline celluloses; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 1～8 part; 0.1～5 part of nucleator;
3) the D material is 0～2 part; 0～2 part of undecylenic acid; 0～20 part in lime carbonate; 0～3 part in sodium-chlor; 0～6 part of urea;
4) content of water in this overall composition by weight percentage≤8%.
The optimum range of above-mentioned microwave radioradiation crosslinked complete biodegradable material preferred component can contain by weight
1) starch is 10～100 parts; 2～20 parts of Mierocrystalline celluloses; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 1～8 part; 0.1～5 part of nucleator;
3) the D material is 2 parts; 1 part of undecylenic acid; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas;
4) water in content by weight percentage≤8%.
The optimum range of above-mentioned microwave radioradiation crosslinked complete biodegradable material best composition can contain by weight
1) starch is 100 parts; 2～20 parts of Mierocrystalline celluloses; 18 parts of A materials; 8 parts of hexanolactam or polyvalent alcohols; 5 parts of B materials; 3 parts of coupling agents;
2) the C material is 1～8 part; 2 parts of nucleators;
3) the D material is 2 parts; 1 part of undecylenic acid; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas;
4) content of water in this overall composition by weight percentage≤8%.
The most preferred embodiment of above-mentioned microwave radioradiation crosslinked complete biodegradable material best composition contains by weight
1) starch is 100 parts; 20 parts of Mierocrystalline celluloses; 18 parts of A materials; 8 parts of hexanolactam or polyvalent alcohols; 5 parts of B materials; 3 parts of coupling agents;
2) the C material is 8 parts; 2 parts of nucleators;
3) the D material is 2 parts; 1 part of undecylenic acid; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas;
4) content of water in this overall composition by weight percentage≤8%.
Above-mentioned starch can be selected a kind of of W-Gum, tapioca (flour), yam starch, wheat starch, konjaku powder, pasted starch or treated starch by excellent for use to taking second place, or its any two kinds to multiple mixture;
Above-mentioned Mierocrystalline cellulose can be selected a kind of of wood powder, vegetable fibre, chitosan, paper pulp, bagasse, cellulose acetate, nitrocellulose, benzyl cellulose or hemp fibre by excellent for use to taking second place, or its any two kinds to multiple mixture;
Above-mentioned A material can be selected a kind of of polyvinyl alcohol, poly(lactic acid), poly-own lactones or polyhydroxybutyrate etc. for use by excellent to taking second place, or its any two kinds to multiple mixture;
Above-mentioned polyvalent alcohol by excellent to optional spent glycol or the glycerol of taking second place;
Above-mentioned B material by excellently can select 4,4 for use to taking second place '-bis oxide benzene sulfonyl trap, Cellmic C 121, butane, ethanol or sodium bicarbonate;
Above-mentioned coupling agent can be selected aluminic acid ester, metatitanic acid fat, silane coupling agent or rare-earth coupling agent by excellent for use to taking second place;
Above-mentioned C material by excellent can select for use to taking second place second rare-vinyl acetate copolymer, second be rare-acrylic acid ethyl ester multipolymer, guar gum, low molecular weight polyethylene wax or second is rare-the rare alcohol copolymer of second;
Above-mentioned nucleator can be selected Sodium Benzoate, rare earth nucleator, titanium dioxide or pigment dyestuff by excellent for use to taking second place;
Above-mentioned D material is by excellent citric acid list tristearin, Yelkin TTS, polyoxyethylene stearyl acyl fat, vegetables oil or the citric acid can selected for use to taking second place;
Above-mentioned lime carbonate can be selected light calcium carbonate, water-ground limestone, calcium carbonate superfine powder or talcum powder by excellent for use to taking second place.
A kind of working method of microwave radioradiation crosslinked complete biodegradable material, its special character is levied and is: this method may further comprise the steps
1) mediate:
(1) high mixer is carried out preheating, make temperature to 85～100 degree;
(2) reinforced, mixing is stirred:
1. get raw material by component, add in the high mixer;
2. temperature is 95～110 degree; Elder generation's stirring at low speed, 130 rev/mins of rotating speeds, churning time 15～20 minutes; Change high-speed stirring again over to, 430 rev/mins of rotating speeds stirred 5～10 minutes, got Preblend;
3. Preblend is put into high mixer
The middle continuation stirs, 130 rev/mins of rotating speeds, and being stirred to temperature is 60 degree, gets the performed polymer compound;
2) moulding: add the performed polymer compound; Carry out crosslinked, the foaming of microwave radio with microwave radio equipment, generate the inierpeneirating network structure material; Moulding.
Above-mentioned moulding can comprise
1) multi-work-station multi-cavity mold or on the transport tape of microwave radio equipment mould is set is set in microwave radio equipment, adds the performed polymer compound; Place mould, add the performed polymer compound;
2) carry out crosslinked, the foaming of microwave radio with microwave radio equipment, generate the inierpeneirating network structure material;
3) inierpeneirating network structure material crosslinked, the foaming generation is pressed mould molding;
4) demoulding.
Above-mentioned moulding can comprise
1) adds the performed polymer compound;
2) carry out crosslinked, the foaming of microwave radio with microwave radio equipment, generate the inierpeneirating network structure material;
3) granulation: pulverize the inierpeneirating network structure material that generates, particle diameter≤5mm with pulverizer;
4) blown film: use the inflation film manufacturing machine blowfilm shaping.
Above-mentioned high mixer can adopt triplet heating individual layer three slurry high mixers or monomer individual layer three slurry high mixers; Be advisable in rf frequency 2450MHZ ± 50 of above-mentioned microwave radio equipment, microwave field density density is advisable to adopt 0～2000W linear regulation, temperature 0～250 degree linear regulation; The transport tape of above-mentioned microwave radio equipment and mould are to adopt being advisable of fiber reinforcement tetrafluoroethylene, polyethylene or polypropylene-base non-polar material.
The present invention has the following advantages:
The stretchiness of product, flexibility, etc. physical and mechanical properties good, range of application is wide, can expand to fields such as body implanting material, water-soluble material, the harmless treatment of atmospheric polluting material sulfurous gas, ceramic post sinterings.
2. material and product can complete biodegradables, generate carbonic acid gas and water, and environmentally safe is pollution-free to soil during especially as mulch film.
3. the transporting action of product utilization tensio-active agent makes it to have barrier preferably, and gas, oil, water and smell, heat etc. are all had barrier preferably, and fresh-keeping effect is good.
4. raw material of the present invention obtains in extensive range, and cost is low.The product physical and mechanical properties is good, and product performance are good.
5. adopt the mode of intramolecule heating, rate of heating is fast, heat utilization efficiency height, uniform heat distribution.
6. processing unit is simple, and is easy and simple to handle, invests for a short time, and work range is wide.Processing unit of the present invention can be used for processing all polar materials, water-soluble material.
7. the device temperature regulation range is wide, in seconds can reach as required more than 2000 degree, and belt transmission speed can be regulated in 0～20 meter/minute scope according to needs.Can promptly open, promptly stop.
8. operation of equipment is easy, can realize temperature linearity adjusting control, and can promptly open promptly and stop; Only need the simple operations of input parameter class, be convenient to automatic production control; Action required personnel are few, and operator's technical ability required low high.
9. material particles shape, size do not have influence to the course of processing and product performance in the production process.The course of processing is not influenced by shape of product.
10. course of processing environmental protection does not have " three wastes " and produces, and need not pressurized air and recirculated water; Production process does not have material breakdown, coking, carbon deposit phenomenon, and no harmful exhaust is discharged; Adopt whipping agent safety, efficient, pollution-free.
11. relative traditional technology, production process can economize on electricity 50%.
Once generate technology, no scrap stock 12. adopt.Than the traditional technology cost 15～45% that economizes in raw materials.
13. mould can adopt the non-polar resin material, and arrangement can reach the tightst optimizing the arrangement of between mould, also greatly reduces cost.Mould need not preheating in the course of processing, and mould work in-process self does not also produce heat.
14. the course of processing does not have generation of static electricity, carry out microwave radiation heating has biocidal efficacies concurrently, the product environmentally-friendly sanitary of making.
15. microwave wavelength is much larger than infrared wavelength, product cross-linking efficiency height need not to add chemical cross-linking agent etc.
16. the foam abscess-size is little, is evenly distributed, and is easy to control, adopts the processing of belt-type or multi-work-station multimode cavity, raw material processing, the demoulding all can realize automatic control.
Embodiment
Component of the present invention is by weight:
1) starch is 10～100 parts; 1～50 part of Mierocrystalline cellulose; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 0～50 part; 0～5 part of nucleator;
3) the D material is 0～2 part; 0～2 part of undecylenic acid; 0～20 part in lime carbonate; 0～3 part in sodium-chlor; 0～6 part of urea;
4) water influences the physical and mechanical properties of product, and the content of Gu Shui in overall composition generally is controlled to≤8% by weight percentage.
Starch of the present invention can be selected for use to taking second place successively by excellent: W-Gum, tapioca (flour), yam starch, wheat starch, konjaku powder, pasted starch or treated starch etc. a kind of, or its two kinds mixtures to multiple arbitrary combination.
Mierocrystalline cellulose of the present invention can be selected for use to taking second place successively by excellent: wood powder, vegetable fibre, chitosan, paper pulp, bagasse, cellulose acetate, nitrocellulose, benzyl cellulose or hemp fibre etc. a kind of, or its two kinds mixtures to multiple arbitrary combination.Mierocrystalline cellulose also available protein substitutes.
A material of the present invention can be selected for use to taking second place successively by excellent: polyvinyl alcohol, poly(lactic acid), poly-own lactones or polyhydroxybutyrate etc. a kind of, or its two kinds mixtures to multiple arbitrary combination.
Polyvalent alcohol of the present invention also can be selected for use to taking second place successively by excellent: ethylene glycol, glycerol etc.
B material of the present invention can be selected for use to taking second place successively by excellent: 4,4 '-bis oxide benzene sulfonyl trap, Cellmic C 121, butane, ethanol or sodium bicarbonate etc.
Coupling agent of the present invention can be selected for use to taking second place successively by excellent: aluminic acid ester, metatitanic acid fat, silane coupling agent, rare-earth coupling agent etc.
C material of the present invention can be selected for use to taking second place successively by excellent: and second is rare-vinyl acetate copolymer, second be rare-and acrylic acid ethyl ester multipolymer, guar gum, low molecular weight polyethylene wax or second is rare-the rare alcohol copolymer of second etc.
Nucleator of the present invention can be selected for use to taking second place successively by excellent: Sodium Benzoate, rare earth nucleator, titanium dioxide or pigment dyestuff etc.
D material of the present invention can be selected for use to taking second place successively by excellent: citric acid list tristearin, Yelkin TTS, polyoxyethylene stearyl acyl fat, vegetables oil or citric acid etc.
Lime carbonate of the present invention can be selected for use to taking second place successively by excellent: light calcium carbonate, water-ground limestone, calcium carbonate superfine powder, talcum powder etc.
The suitable component of the present invention is by weight:
1) starch is 10～100 parts; 1～50 part of Mierocrystalline cellulose; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 1～50 part; 0.1～5 part of nucleator;
3) the D material is 0～2 part; 0～2 part of undecylenic acid; 0～20 part in lime carbonate; 0～3 part in sodium-chlor; 0～6 part of urea;
4) content of water in this overall composition by weight percentage≤8%.
This suitable component is the raw material of polar molecular structure, and heating is fast, and fusion is fast, helps forming the interpenetrating(polymer)networks material structure.Cooperate the foam structure, can improve material property, and reduce product cost.
The preferred range of preferred component of the present invention is by weight:
1) starch is 10～100 parts; 2～20 parts of Mierocrystalline celluloses; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 1～8 part; 0.1～5 part of nucleator;
3) the D material is 0～2 part; 0～2 part of undecylenic acid; 0～20 part in lime carbonate; 0～3 part in sodium-chlor; 0～6 part of urea;
4) content of water in this overall composition by weight percentage≤8%.
The optimum range of preferred component of the present invention is by weight:
1) starch is 10～100 parts; 2～20 parts of Mierocrystalline celluloses; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 1～8 part; 0.1～5 part of nucleator;
3) the D material is 2 parts; 1 part of undecylenic acid; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas;
4) water in content by weight percentage≤8%.
The optimum range of best composition of the present invention is by weight:
1) starch is 100 parts; 2～20 parts of Mierocrystalline celluloses; 18 parts of A materials; 8 parts of hexanolactam or polyvalent alcohols; 5 parts of B materials; 3 parts of coupling agents;
2) the C material is 1～8 part; 2 parts of nucleators;
3) the D material is 2 parts; 1 part of undecylenic acid; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas;
4) content of water in this overall composition by weight percentage≤8%.
The most preferred embodiment of best composition of the present invention is by weight:
1) starch is 100 parts; 20 parts of Mierocrystalline celluloses; 18 parts of A materials; 8 parts of hexanolactam or polyvalent alcohols; 5 parts of B materials; 3 parts of coupling agents;
2) the C material is 8 parts; 2 parts of nucleators;
3) the D material is 2 parts; 1 part of undecylenic acid; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas;
4) content of water in this overall composition by weight percentage≤8%.
Other specific embodiment:
100 parts of example 1. starch; 22 parts of Mierocrystalline celluloses; 18 parts of A materials; 8 parts of hexanolactam or polyvalent alcohols; 5 parts of B materials; 1 part of coupling agent; 0 part of C material; 0 part of nucleator; 2 parts of D materials; 1 part of undecylenic acid; 4 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas.
100 parts of example 2. starch; 22 parts of Mierocrystalline celluloses; 18 parts of A materials; 8 parts of hexanolactam or polyvalent alcohols; 5 parts of B materials; 1 part of coupling agent; 0 part of C material; 0 part of nucleator; 2 parts of D materials; 1 part of undecylenic acid; 4 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas.
100 parts of example 3. starch; 22 parts of Mierocrystalline celluloses; 18 parts of A materials; 8 parts of hexanolactam or polyvalent alcohols; 5 parts of B materials; 1 part of coupling agent; 7 parts of C materials; 1.6 parts of nucleators; 2 parts of D materials; 1 part of undecylenic acid; 4 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas.
95 parts of example 4. starch; 18 parts of Mierocrystalline celluloses; 20 parts of A materials; 7 parts of hexanolactam or polyvalent alcohols; 4 parts of B materials; 3.5 parts of coupling agents; 5 parts of C materials; 1.2 parts of nucleators; 1 part of D material; 2 parts of undecylenic acids; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4.5 parts of ureas.
90 parts of example 5. starch; 25 parts of Mierocrystalline celluloses; 22 parts of A materials; 5 parts of hexanolactam or polyvalent alcohols; 3 parts of B materials; 2.5 parts of coupling agents; 3 parts of C materials; 2.2 parts of nucleators; 2 parts of D materials; 0 part of undecylenic acid; 2 parts in lime carbonate; 2.5 parts in sodium-chlor; 3.5 parts of ureas.
85 parts of example 6. starch; 15 parts of Mierocrystalline celluloses; 26 parts of A materials; 9 parts of hexanolactam or polyvalent alcohols; 2 parts of B materials; 3 parts of coupling agents; 1 part of C material; 2.4 parts of nucleators; 1 part of D material; 1 part of undecylenic acid; 8 parts in lime carbonate; 1 part in sodium-chlor; 3 parts of ureas.
80 parts of example 7. starch; 25 parts of Mierocrystalline celluloses; 30 parts of A materials; 12 parts of hexanolactam or polyvalent alcohols; 7 parts of B materials; 2 parts of coupling agents; 10 parts of C materials; 3 parts of nucleators; 2 parts of D materials; 0 part of undecylenic acid; 0 part in lime carbonate; 3.5 parts in sodium-chlor; 5 parts of ureas.
70 parts of example 8. starch; 30 parts of Mierocrystalline celluloses; 40 parts of A materials; 14 parts of hexanolactam or polyvalent alcohols; 1 part of B material; 0.8 part of coupling agent; 15 parts of C materials; 3.5 parts of nucleators; 2 parts of D materials; 1 part of undecylenic acid; 10 parts in lime carbonate; 2 parts in sodium-chlor; 6 parts of ureas.
60 parts of example 9. starch; 10 parts of Mierocrystalline celluloses; 50 parts of A materials; 16 parts of hexanolactam or polyvalent alcohols; 15 parts of B materials; 4 parts of coupling agents; 20 parts of C materials; 1 part of nucleator; 1 part of D material; 2 parts of undecylenic acids; 14 parts in lime carbonate; 0 part in sodium-chlor; 0 part of urea.
50 parts of example 10. starch; 50 parts of Mierocrystalline celluloses; 60 parts of A materials; 20 parts of hexanolactam or polyvalent alcohols; 9 parts of B materials; 0.1 part of coupling agent; 30 parts of C materials; 0.8 part of nucleator; 0 part of D material; 0 part of undecylenic acid; 18 parts in lime carbonate; 3 parts in sodium-chlor; 1 part of urea.
30 parts of example 11. starch; 40 parts of Mierocrystalline celluloses; 80 parts of A materials; 25 parts of hexanolactam or polyvalent alcohols; 11 parts of B materials; 0.4 part of coupling agent; 40 parts of C materials; 4 parts of nucleators; 0 part of D material; 2 parts of undecylenic acids; 20 parts in lime carbonate; 0 part in sodium-chlor; 2 parts of ureas.
10 parts of example 12. starch; 1 part of Mierocrystalline cellulose; 100 parts of A materials; 30 parts of hexanolactam or polyvalent alcohols; 13 parts of B materials; 5 parts of coupling agents; 50 parts of C materials; 5 parts of nucleators; 0 part of D material; 1 part of undecylenic acid; 0 part in lime carbonate; 1 part in sodium-chlor; 0 part of urea.
The feed composition explanation: the present invention is by the excellent replacement raw material of selecting for use successively to taking second place, and is influential to degradation property, range of application and cost.Starch, Mierocrystalline cellulose, polyvinyl alcohol are degradable material, can improve processing temperature.Make wrapping material, food and drink tool with potato starch, processing characteristics is preferable.Hexanolactam is a plasticizer extender, can improve Drawing abillity and water resistance.4,4 '-bis oxide benzene sulfonyl trap is a whipping agent, can improve the flowability of material, has compatibilization concurrently.Citric acid list tristearin is tensio-active agent, can improve the material water tolerance.Undecylenic acid is promoting agent, lubricant.Coupling agent can improve the consistency of system.Lime carbonate is weighting agent, can improve rigidity of material, reduces cost.The sodium-chlor paste agent.Urea is the starch structure disrupting agent.Nucleator is easy to bubble and distributes tiny even.Water is that softening agent improves processing temperature.Second is rare-and vinyl acetate copolymer is a binding agent, can improve the consistency of system.
The preferred raw materials of making compact electric apparatus wrapping material and disposable food or beverage container is: W-Gum, hemp fibre, polyvinyl alcohol, polyoxyethylene stearyl acyl fat, hexanolactam, second be rare-and acrylic acid second resin copolymer, rare-earth coupling agent, talcum powder, rare earth nucleator.
The processing agricultural mulching, Mierocrystalline cellulose is crossed 600 mesh sieves and is advisable to be controlled at below 10% part in the component.
Embodiment 1 is the complete processing of food and drink tool, compact electric apparatus packing:
1. mediate:
1) high mixer is carried out preheating: high mixer can adopt triplet heating individual layer three slurry high mixers or monomer individual layer three slurry high mixers, and making it temperature is 85～100 degree, is advisable with 95 degree;
2) reinforced, mixing is stirred:
(1) gets raw material by component, add in the high mixer;
(2) temperature is 95～110 degree; Elder generation's stirring at low speed, 130 rev/mins of rotating speeds, churning time 15～20 minutes; Change high-speed stirring again over to, 430 rev/mins of rotating speeds stirred 5～10 minutes, got Preblend;
(3) the cold pot of Preblend being put into high mixer continues to stir, 130 rev/mins of rotating speeds, and being stirred to temperature is 60 degree, gets the performed polymer compound.
Because water is softening agent, need not to open the venting hole exhaust in the kneading process, discharge to reduce water vapour as far as possible.
2. moulding:
1) rf frequency is 2450MHZ ± 50, microwave field density density 0～2000W linear regulation, temperature 0～250 degree linear regulation;
2) multi-work-station multi-cavity mold or on the transport tape of microwave radio equipment mould is set is set in microwave radio equipment, adds the performed polymer compound;
3) carry out crosslinked, the foaming of microwave radio with microwave radio equipment.Raw material changes with per second tens00000000～twenties00000000 secondary frequencies in microwave radio equipment, and friction generates heat, and heating plasticizing, fusion, radiation crosslinking are filled mould by the foaming dynamic mixing, generate the inierpeneirating network structure material;
4) inierpeneirating network structure material crosslinked, the foaming generation is pressed mould molding;
5) demoulding.
Embodiment 2 is the complete processing of mulch film:
1. mediate technology with embodiment 1.
2. moulding:
1) microwave radio equipment, rf frequency are 2450MHZ ± 50, microwave field density density 0～2000W linear regulation, temperature 0～250 degree linear regulation;
2) add the performed polymer compound;
3) carry out crosslinked, the foaming of microwave radio with microwave radio equipment.Raw material changes with per second tens00000000～twenties00000000 secondary frequencies in microwave radio equipment, and friction generates heat, and heating plasticizing, fusion, radiation crosslinking generate the inierpeneirating network structure material;
4) granulation: pulverize the inierpeneirating network structure material that generates with pulverizer, grain is relevant with product performance through size, and specifically the border is chosen factually.Generally, particle diameter≤5mm.
5) blown film: use the inflation film manufacturing machine blowfilm shaping.
Embodiment 3 is handbag, handbag complete processing:
Its kneading, moulding process are with embodiment 2.Behind the blowfilm shaping, set up bag machine bag technology.
The transport tape of microwave radio equipment of the present invention and mould can adopt non-polar materials such as fiber reinforcement tetrafluoroethylene, polyethylene, polypropylene, can reduce production costs.
Claims (11)
1. microwave radioradiation crosslinked complete biodegradable material, it is characterized in that: it contains by weight
1) starch is 10～100 parts; 1～50 part of Mierocrystalline cellulose; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 0～50 part; 0～5 part of nucleator;
3) the D material is 0～2 part; 0～2 part of undecylenic acid; 0～20 part in lime carbonate; 0～3 part in sodium-chlor; 0～6 part of urea;
4) content of water in overall composition is controlled to≤8% by weight percentage.
2. microwave radioradiation crosslinked complete biodegradable material according to claim 1, it is characterized in that: it contains by weight
1) starch is 10～100 parts; 1～50 part of Mierocrystalline cellulose; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 1～50 part; 0.1～5 part of nucleator;
3) the D material is 0～2 part; 0～2 part of undecylenic acid; 0～20 part in lime carbonate; 0～3 part in sodium-chlor; 0～6 part of urea;
4) content of water in this overall composition by weight percentage≤8%.
3. microwave radioradiation crosslinked complete biodegradable material according to claim 1, it is characterized in that: it contains by weight
1) starch is 10～100 parts; 2～20 parts of Mierocrystalline celluloses; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 1～8 part; 0.1～5 part of nucleator;
3) the D material is 0～2 part; 0～2 part of undecylenic acid; 0～20 part in lime carbonate; 0～3 part in sodium-chlor; 0～6 part of urea;
4) content of water in this overall composition by weight percentage≤8%.
4. microwave radioradiation crosslinked complete biodegradable material according to claim 1, it is characterized in that: it contains by weight
1) starch is 10～100 parts; 2～20 parts of Mierocrystalline celluloses; 18～100 parts of A materials; 5～30 parts of hexanolactam or polyvalent alcohols; 1～15 part of B material; 0.1～5 part of coupling agent;
2) the C material is 1～8 part; 0.1～5 part of nucleator;
3) the D material is 2 parts; 1 part of undecylenic acid; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas;
4) water in content by weight percentage≤8%.
5. microwave radioradiation crosslinked complete biodegradable material according to claim 1, it is characterized in that: it contains by weight
1) starch is 100 parts; 2～20 parts of Mierocrystalline celluloses; 18 parts of A materials; 8 parts of hexanolactam or polyvalent alcohols; 5 parts of B materials; 3 parts of coupling agents;
2) the C material is 1～8 part; 2 parts of nucleators;
3) the D material is 2 parts; 1 part of undecylenic acid; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas;
4) content of water in this overall composition by weight percentage≤8%.
6. microwave radioradiation crosslinked complete biodegradable material according to claim 1, it is characterized in that: it contains by weight
1) starch is 100 parts; 20 parts of Mierocrystalline celluloses; 18 parts of A materials; 8 parts of hexanolactam or polyvalent alcohols; 5 parts of B materials; 3 parts of coupling agents;
2) the C material is 8 parts; 2 parts of nucleators;
3) the D material is 2 parts; 1 part of undecylenic acid; 6 parts in lime carbonate; 2 parts in sodium-chlor; 4 parts of ureas;
4) content of water in this overall composition by weight percentage≤8%.
7. according to the arbitrary described microwave radioradiation crosslinked complete biodegradable material of claim 1～6, it is characterized in that: described starch is a kind of of W-Gum, tapioca (flour), yam starch, wheat starch, konjaku powder, pasted starch or treated starch, or its any two kinds to multiple mixture;
Described Mierocrystalline cellulose is a kind of of wood powder, vegetable fibre, chitosan, paper pulp, bagasse, cellulose acetate, nitrocellulose, benzyl cellulose or hemp fibre, or its any two kinds to multiple mixture;
Described A material is a kind of of polyvinyl alcohol, poly(lactic acid), poly-own lactones or polyhydroxybutyrate etc., or its any two kinds to multiple mixture;
Described polyvalent alcohol is ethylene glycol or glycerol;
Described B material is 4,4 '-bis oxide benzene sulfonyl trap, Cellmic C 121, butane, ethanol or sodium bicarbonate;
Described coupling agent is aluminic acid ester, metatitanic acid fat, silane coupling agent or rare-earth coupling agent;
Described C material be second rare-vinyl acetate copolymer, second be rare-acrylic acid ethyl ester multipolymer, guar gum, low molecular weight polyethylene wax or second is rare～the rare alcohol copolymer of second;
Described nucleator is Sodium Benzoate, rare earth nucleator, titanium dioxide or pigment dyestuff;
Described D material is citric acid list tristearin, Yelkin TTS, polyoxyethylene stearyl acyl fat, vegetables oil or citric acid;
Described lime carbonate is light calcium carbonate, water-ground limestone, calcium carbonate superfine powder or talcum powder.
8. working method according to the described microwave radioradiation crosslinked complete biodegradable material of claim 1, it is characterized in that: this method may further comprise the steps
1) mediate:
(1) high mixer is carried out preheating, make temperature to 85～100 degree;
(2) reinforced, mixing is stirred:
1. get raw material by component, add in the high mixer;
2. temperature is 95～110 degree; Elder generation's stirring at low speed, 130 rev/mins of rotating speeds, churning time 15～20 minutes; Change high-speed stirring again over to, 430 rev/mins of rotating speeds stirred 5～10 minutes, got Preblend;
3. the cold pot of Preblend being put into high mixer continues to stir, 130 rev/mins of rotating speeds, and being stirred to temperature is 60 degree, gets the performed polymer compound;
2) moulding: add the performed polymer compound; Carry out crosslinked, the foaming of microwave radio with microwave radio equipment, generate the inierpeneirating network structure material; Moulding.
9. the working method of described microwave radioradiation crosslinked complete biodegradable material according to Claim 8, it is characterized in that: described moulding comprises
1) multi-work-station multi-cavity mold or on the transport tape of microwave radio equipment mould is set is set in microwave radio equipment, adds the performed polymer compound; Place mould, add the performed polymer compound;
2) carry out crosslinked, the foaming of microwave radio with microwave radio equipment, generate the inierpeneirating network structure material;
3) inierpeneirating network structure material crosslinked, the foaming generation is pressed mould molding;
4) demoulding.
10. the working method of described microwave radioradiation crosslinked complete biodegradable material according to Claim 8, it is characterized in that: described moulding comprises
1) adds the performed polymer compound;
2) carry out crosslinked, the foaming of microwave radio with microwave radio equipment, generate the inierpeneirating network structure material;
3) granulation: pulverize the inierpeneirating network structure material that generates, particle diameter≤5mm with pulverizer;
4) blown film: use the inflation film manufacturing machine blowfilm shaping.
11. according to Claim 8 or the working method of 9 or 10 described microwave radioradiation crosslinked complete biodegradable materials, it is characterized in that: described high mixer is triplet heating individual layer three slurry high mixers or monomer individual layer three slurry high mixers; The rf frequency of described microwave radio equipment is 2450MHZ ± 50, microwave field density density 0～2000W linear regulation, temperature 0～250 degree linear regulation; The transport tape of described microwave radio equipment and mould are fiber reinforcement tetrafluoroethylene, polyethylene or polypropylene-base non-polar material.
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| CN 200510042794 CN1876699A (en) | 2005-06-10 | 2005-06-10 | Microwave radioradiation crosslinked complete biodegradable material and its processing method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173055B (en) * | 2007-10-29 | 2010-05-19 | 吉林大学 | A method for surface crosslinking treatment of thermoplastic starch products |
| CN101974213A (en) * | 2010-11-25 | 2011-02-16 | 四川奎克生物科技有限公司 | Degradable bacteriostatic food packing material and preparation method thereof |
| CN102504342A (en) * | 2011-09-29 | 2012-06-20 | 广州优锐生物科技有限公司 | Polymer environment-friendly degradable material and preparation method thereof |
| CN102898668A (en) * | 2012-10-13 | 2013-01-30 | 华南理工大学 | Water soluble preservative film for fruits and vegetables and preparation method of preservative film |
| CN105542415A (en) * | 2016-02-03 | 2016-05-04 | 黑龙江鑫达企业集团有限公司 | PLA (polylactic acid) wood-plastic composite material used for 3D printing and preparation method thereof |
| CN107266720A (en) * | 2017-06-28 | 2017-10-20 | 常州市尚泽纺织品有限公司 | A kind of reinforced thermoplastic starch composite material and preparation method thereof |
| CN107987496A (en) * | 2017-12-21 | 2018-05-04 | 河南工业大学 | A kind of method of microwave method fabricated in situ polylactic acid-base composite material |
| CN108285603A (en) * | 2018-03-07 | 2018-07-17 | 常德金德新材料科技股份有限公司 | A kind of degradable high-barrier composite material and preparation method thereof |
| CN109700587A (en) * | 2011-04-05 | 2019-05-03 | 气道技术有限责任公司 | Improve the equipment of breathing |
| CN111742770A (en) * | 2020-07-10 | 2020-10-09 | 宜宾职业技术学院 | A kind of fully degradable liquid agricultural stock solution and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173055B (en) * | 2007-10-29 | 2010-05-19 | 吉林大学 | A method for surface crosslinking treatment of thermoplastic starch products |
| CN101974213A (en) * | 2010-11-25 | 2011-02-16 | 四川奎克生物科技有限公司 | Degradable bacteriostatic food packing material and preparation method thereof |
| CN109700587A (en) * | 2011-04-05 | 2019-05-03 | 气道技术有限责任公司 | Improve the equipment of breathing |
| CN102504342A (en) * | 2011-09-29 | 2012-06-20 | 广州优锐生物科技有限公司 | Polymer environment-friendly degradable material and preparation method thereof |
| CN102898668A (en) * | 2012-10-13 | 2013-01-30 | 华南理工大学 | Water soluble preservative film for fruits and vegetables and preparation method of preservative film |
| CN102898668B (en) * | 2012-10-13 | 2014-12-31 | 华南理工大学 | Water soluble preservative film for fruits and vegetables and preparation method of preservative film |
| CN105542415A (en) * | 2016-02-03 | 2016-05-04 | 黑龙江鑫达企业集团有限公司 | PLA (polylactic acid) wood-plastic composite material used for 3D printing and preparation method thereof |
| CN107266720A (en) * | 2017-06-28 | 2017-10-20 | 常州市尚泽纺织品有限公司 | A kind of reinforced thermoplastic starch composite material and preparation method thereof |
| CN107987496A (en) * | 2017-12-21 | 2018-05-04 | 河南工业大学 | A kind of method of microwave method fabricated in situ polylactic acid-base composite material |
| CN108285603A (en) * | 2018-03-07 | 2018-07-17 | 常德金德新材料科技股份有限公司 | A kind of degradable high-barrier composite material and preparation method thereof |
| CN111742770A (en) * | 2020-07-10 | 2020-10-09 | 宜宾职业技术学院 | A kind of fully degradable liquid agricultural stock solution and preparation method thereof |
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