CN102532647B - Photo-biological composite degradable polyethylene foam plastic and preparation method thereof - Google Patents
Photo-biological composite degradable polyethylene foam plastic and preparation method thereof Download PDFInfo
- Publication number
- CN102532647B CN102532647B CN201010606692.6A CN201010606692A CN102532647B CN 102532647 B CN102532647 B CN 102532647B CN 201010606692 A CN201010606692 A CN 201010606692A CN 102532647 B CN102532647 B CN 102532647B
- Authority
- CN
- China
- Prior art keywords
- parts
- promotor
- starch
- add
- biological composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention relates to a photo-biological composite degradable polyethylene foam plastic and a preparation method thereof. The plastic comprises the following components in parts by weight: 70-80 parts of low-density polyethylene (LDPE), 3.5-10 parts of foaming agent, 0.5-2.5 parts of crosslinking agent, 20-30 parts of compatilizer, 25-40 parts of modified starch, 15-25 parts of modified calcium carbonate, 2-5 parts of accelerator No.2, 5-8 parts of photodegradable master batch, 50-70 parts of composite inorganic flame retardant and 1-2.5 parts of lubricant. Compared with the prior art, the invention adopts a photo-biological composite degradable polyethylene foam plastic method, so that the waste foam plastic can be recycled after being subjected to photo-biological composite degradation, and thus, is pollution-free and environment-friendly; and the modified foam plastic has the advantages of light weight, high strength and favorable flame retardancy and resistance, can be completely degraded, and is completely applicable to industrialized products. The plastic provided by the invention can be widely used in product packaging, plastic building materials and many other national economy fields.
Description
Technical field
The invention belongs to macromolecule modified and processing technique field, relate to a kind of polyethylene foams and preparation method thereof.
Background technology
Polyethylene foams, due to its economic convenient and good stability, is widely used in national economy and human lives's all respects, but has also brought " white pollution " of serious harm ecotope simultaneously.Global Plastic wastes just accumulate in environment with the speed of annual 4000 ten thousand t according to estimates, and China is estimated as 2,000,000 t.Polyethylene is linear saturated hydrocarbon, structurally similar with paraffin and long chain alkane, but molecular weight is mostly more than 20,000.The biodegradable complexity of polyethylene is directly relevant with its molecular weight, and side chain and alkane more than 20 carbon are difficult to be biodegradable.Plastics completely by microbial assimilation, are degraded into CO in soil
2realize inorganic mineralising with water, need 200～400a time, thereby cause the accumulation in environment.At present, most polyethylene refuses adopt burning disposal, but can produce a large amount of toxic gases, comprise CO, HCl, NO
x, SO
2deng.Therefore seek the various degradation pathway of plastics and study its mechanism of degradation, solving the problem of environmental pollution causing due to plastics extremely urgent.
Poly biological degradation is very slow, and reason is that its molecular weight is excessive, hydrophobicity is strong, and the surface of plastics can be too low.So in order to promote Study of Biodegradation of Common, according to known mechanism of degradation, many modified plasticss have been produced in design, as photodegradable plastics, it adds the photosensitizerss such as transition metal complex in macromolecular material, or introducing-the CO ,-photosensitive groups such as CHO, utilize solar ultraviolet effect to produce free radical and make polymer molecule splitting of chain and cause it to lose physical strength and change structure, thereby reach degraded object; Addition type biodegradable plastic, it be by starch, Mierocrystalline cellulose, lipid acid etc. easily the material of microbiological deterioration or utilization carry out after hydrophobisation surface treatment, with polymer blending or be grafted on polymer molecular chain made.The microorganism secretion such as flavus, streptomycete lytic enzyme, can decompose the wherein starch as carbon source, makes polyethylene be degraded into small molecules, then is utilized by fungi or degradation by bacteria; Development in recent years is light, biodegradable plastic faster, is class novel degradable plastics that have both photodegradation and biological degradation dual-use function.
Adopt the method for light, biological composite degradable polyethylene foams, make waste plastic pass through light, biological composite degradable recycling capable of circulation, pollution-free environmentally friendly, and this compound fully degraded vinyon cost of development is low, easily realize industrialization, be Sustainable development, radical cure white pollution in the urgent need to.
Summary of the invention
Object of the present invention be exactly provide a kind of in order to overcome the defect that above-mentioned prior art exists and have that light weight intensity is high, fire-retardant fireproof there is polyethylene foams of composite degradation function and preparation method thereof.
Object of the present invention can be achieved through the following technical solutions:
A kind of light, biological composite degradable polyethylene foams, comprise following component and parts by weight thereof:
70～80 parts of Low Density Polyethylenes (LDPE)
3.5～10 parts of whipping agents
0.5～2.5 part of linking agent
20～30 parts of compatilizers
25～40 parts of treated starches
15～25 parts of modified calcium carbonates
2～5 parts of promotor No. 2
5～8 parts of photodegradation masterbatch
50～70 parts of composite inorganic fire retardants
1～2.5 part of lubricant
Described whipping agent is selected from Cellmic C 121 (AC), Diisopropyl azodicarboxylate (AIBN), azoformamide potassium formiate (AP), trichlorofluoromethane (F11), Refrigerant 12 (F12), pentamethylene or iso-pentane.
Described linking agent is selected from 2,5-dimethyl-2,5-bis-(tert-butyl peroxy base) hexane, peroxidation phenyl-diformyl, dicumyl peroxide (DCP) or cyamelide triallyl.
Described compatilizer is selected from acrylic acid-grafted polypropylene, maleic anhydride grafted polyethylene, ethylene/acrylic acid copolymer (EAA), ethylene/ethyl acrylate multipolymer (EEA), ethylene/acetic acid ethylene copolymer (EVA) or terpolymer EP rubber.
Described treated starch composition (mass parts): starch 100～110, carboxymethyl starch 2～6, urea 0～4, polycaprolactone 2～5, promotor No. 1 2～5, Viscotrol C ethylene oxide condensate 2～5.
The relative molecular mass of described poly-several lactones is 5000～50000.
Described promotor is made up of surface additive and polyacrylamide equivalent for No. 1, and surface additive is selected from titanate coupling agent, boric acid ester coupler or phosphate coupling agent.
Described modified calcium carbonate is made up of following component and weight part thereof: calcium carbonate 100～105, promotor No. 1 2～4, stearic acid 4～8, calcium oxide 10～20.
Described promotor is made up of following component and weight part thereof for No. 2: 2-dihydroxy benaophenonel photooxidant 60～80, plasticizer DOP 15～30, oxidic polyethylene 30～45.
Described photodegradation masterbatch is made up of following component and weight part thereof: trivalent iron salt photosensitizers 50～60, light trigger 20～40, photooxidant 15～30.
Described composite inorganic fire retardant is made up of aluminium hydroxide and zinc borate, and the mass ratio of aluminium hydroxide and zinc borate is (2～3): 1, and aluminium hydroxide sieves through 500 orders.
Described lubricant is selected from stearic acid, lithium stearate, N, N '-ethylenebis Stearyl Amine or Zinic stearas.
A method of preparing above-mentioned light, biological composite degradable polyethylene foams, comprises step:
(1) pretreatment of starch: first starch is added to high-speed mixer, at 110～130 ℃ of dry 20～30min, to moisture content be 1%～3% left and right, add No. 1 part of urea and promotor, blend 8～15min, add carboxymethyl starch, mix 3～8min, then add polycaprolactone part, mix 2～8min, be added dropwise to Viscotrol C ethylene oxide condensate, mix 3～10min and be disposed;
(2) calcium carbonate pre-treatment: the same with above-mentioned pretreatment of starch, in general high-speed mixer, carry out.Calcium carbonate is added in high-speed mixer, in the time of 80 ℃, add stearic acid, promotor No. 1, calcium oxide, high-speed mixing 15min;
(3) LDPE, the above-mentioned treated starch of handling well, modified calcium carbonate, promotor No. 2, ethylene/acrylic acid copolymer, photodegradation masterbatch, composite inorganic fire retardant, stearic acid are fully mixed in low speed mixer, mixing 8～15min left and right in plasticator again, temperature is controlled at 120～130 ℃, treat that plasticizing in flakes, add whipping agent, be cooled to 80～100 ℃, mixing 12～20min, add again linking agent, at 80～100 ℃ of mixing 5～10min;
(4) above-mentioned sheet stock of plasticating is packed into mould, 160～180 ℃ of temperature, pressure 0.3～1.0Mpa, through 10～12min, cooling taking-up blank;
(5) blank is packed in foaming molding mold, under blowing temperature, heating 8～10min, makes its expanded foamed moulding, gets final product to obtain goods again.
Compared with prior art, the present invention adopts the method for light, biological composite degradable polyethylene foams, make waste plastic foam pass through light, biological composite degradable recycling capable of circulation, pollution-free environmentally friendly, and the lightweight intensity of this modification porous plastics is high, fire-retardant fireproof is good and can be degradable, is applicable to industrialization product completely.The plastics of this invention can be widely used in numerous national economy such as the packing of product, materials for construction field.Plastic refuse just accumulates in environment with the speed of annual 4000 ten thousand t according to statistics, if so serious solid waste pollution problem can complete smoothly by this composite degradation, will bring much facilities to the mankind.
Embodiment
Below in conjunction with specific embodiment, the present invention is specifically described in detail.It is important to point out that following examples are only further described with the present invention, rather than limiting the scope of the invention.In embodiment, adopt GB (GB) to measure the properties of material, if no special instructions, the umber of component is parts by weight.
Embodiment 1
(1) pretreatment of starch: first starch is added to high-speed mixer, 120 ℃ dry 22 minutes, to moisture content be 2% left and right, 100 parts of starch, add 3 parts of 2 parts, urea and promotor No. 1, blend 10min, adds 4 parts of carboxymethyl starch, mixes 5min, add again 3 parts of polycaprolactones (relative molecular mass 5000～50000), mix 5min, be added dropwise to 2 parts of Viscotrol C ethylene oxide condensates, mix 5min and obtain treated starch;
(2) calcium carbonate pre-treatment: 100 parts, calcium carbonate is added in another high-speed mixer simultaneously, in the time of 80 ℃, add 5 parts of stearic acid, 3 parts of promotor No. 1,15 parts, calcium oxide, high-speed mixing 15min obtains modified calcium carbonate;
(3) 72 parts of LDPE, 30 parts of the above-mentioned treated starches of handling well, 15 parts of modified calcium carbonates, promotor No. 2 is (by 2-dihydroxy benaophenonel photooxidant, plasticizer DOP, oxidic polyethylene) 2.4 parts, 24 parts of ethylene/acrylic acid copolymer, 6.3 parts of photodegradation masterbatch, composite inorganic fire retardant (aluminium hydroxide: zinc borate=2.5: 1) 65 parts, 1.5 parts of fully mixing in low speed mixer of stearic acid, mixing 10min left and right in plasticator again, temperature is controlled at 120～130 ℃, treat that plasticizing in flakes, add 5.5 parts of blowing agent ACs, be cooled to 80～100 ℃, mixing 15min, add again 1.5 parts of crosslink agent DCPs, at 80～100 ℃ of mixing 8min,
(4) pack the sheet stock of plasticating into mould, 170 ℃ of temperature, pressure 0.6Mpa, through 10～12min, cooling taking-up blank;
(5) blank is packed in foaming molding mold, under blowing temperature, heating 8～10min, makes its expanded foamed moulding, gets final product to obtain goods again.Properties is measured and is seen attached list 1.
Embodiment 2
(1) pretreatment of starch: first starch is added to high-speed mixer, 115 ℃ dry 25 minutes, to moisture content be 2% left and right, 104 parts of starch, add 2 parts of 3 parts, urea and promotor No. 1, blend 12min, adds 5 parts of carboxymethyl starch, mixes 7min, add again 4 parts of polycaprolactones (relative molecular mass 5000～50000), mix 5min, be added dropwise to 4 parts of Viscotrol C ethylene oxide condensates, mix 5min and obtain treated starch;
(2) calcium carbonate pre-treatment: 100 parts, calcium carbonate is added in another high-speed mixer simultaneously, in the time of 80 ℃, add 4 parts of stearic acid, 3 parts of promotor No. 1,12 parts, calcium oxide, high-speed mixing 15min obtains modified calcium carbonate;
(3) 70 parts of LDPE, 35 parts of the above-mentioned treated starches of handling well, 20 parts of modified calcium carbonates, promotor No. 2 is (by 2-dihydroxy benaophenonel photooxidant, plasticizer DOP, oxidic polyethylene) 2.2 parts, 25 parts of ethylene/acrylic acid copolymer, 6.5 parts of photodegradation masterbatch, composite inorganic fire retardant (aluminium hydroxide: zinc borate=2.5: 1) 64 parts, 1.5 parts of fully mixing in low speed mixer of stearic acid, mixing 12min left and right in plasticator again, temperature is controlled at 120～130 ℃, treat that plasticizing in flakes, add 5.5 parts of blowing agent ACs, be cooled to 80～100 ℃, mixing 18min, add again 1.8 parts of crosslink agent DCPs, at 80～100 ℃ of mixing 6min,
(4) pack the sheet stock of plasticating into mould, 165 ℃ of temperature, pressure 0.8Mpa, through 10～12min, cooling taking-up blank;
(5) blank is packed in foaming molding mold, under blowing temperature, heating 8～10min, makes its expanded foamed moulding, gets final product to obtain goods again.Properties is measured and is seen attached list 1.
Embodiment 3
(1) pretreatment of starch: first starch is added to high-speed mixer, 125 ℃ dry 20 minutes, to moisture content be 2% left and right, 105 parts of starch, add 5 parts of 4 parts, urea and promotor No. 1, blend 15min, adds 3 parts of carboxymethyl starch, mixes 5min, add again 3 parts of polycaprolactones (relative molecular mass 5000～50000), mix 8min, be added dropwise to 5 parts of Viscotrol C ethylene oxide condensates, mix 8min and obtain treated starch;
(2) calcium carbonate pre-treatment: 102 parts, calcium carbonate is added in another high-speed mixer simultaneously, in the time of 80 ℃, add 5 parts of stearic acid, 4 parts of promotor No. 1,15 parts, calcium oxide, high-speed mixing 15min obtains modified calcium carbonate;
(3) 70 parts of LDPE, 38 parts of the above-mentioned treated starches of handling well, 25 parts of modified calcium carbonates, promotor No. 2 is (by 2-dihydroxy benaophenonel photooxidant, plasticizer DOP, oxidic polyethylene) 2.5 parts, 25 parts of ethylene/acrylic acid copolymer, 6.5 parts of photodegradation masterbatch, composite inorganic fire retardant (aluminium hydroxide: zinc borate=2.5: 1) 66 parts, 1.5 parts of fully mixing in low speed mixer of stearic acid, mixing 10min left and right in plasticator again, temperature is controlled at 120～130 ℃, treat that plasticizing in flakes, add 5.8 parts of blowing agent ACs, be cooled to 80～100 ℃, mixing 15min, add again 1.6 parts of crosslink agent DCPs, at 80～100 ℃ of mixing 10min,
(4) pack the sheet stock of plasticating into mould, 175 ℃ of temperature, pressure 0.4Mpa, through 10～12min, cooling taking-up blank;
(5) blank is packed in foaming molding mold, under blowing temperature, heating 8～10min, makes its expanded foamed moulding, gets final product to obtain goods again.Properties is measured and is seen attached list 1.
Embodiment 4
(1) pretreatment of starch: first starch is added to high-speed mixer, 120 ℃ dry 24 minutes, to moisture content be 2% left and right, 108 parts of starch, add 4 parts of 2 parts, urea and promotor No. 1, blend 8min, adds 5 parts of carboxymethyl starch, mixes 6min, add again 4 parts of polycaprolactones (relative molecular mass 5000～50000), mix 5min, be added dropwise to 3 parts of Viscotrol C ethylene oxide condensates, mix 5min and obtain treated starch;
(2) calcium carbonate pre-treatment: 100 parts, calcium carbonate is added in another high-speed mixer simultaneously, in the time of 80 ℃, add 6 parts of stearic acid, 4 parts of promotor No. 1,15 parts, calcium oxide, high-speed mixing 15min obtains modified calcium carbonate;
(3) 73 parts of LDPE, 30 parts of the above-mentioned treated starches of handling well, 17 parts of modified calcium carbonates, promotor No. 2 is (by 2-dihydroxy benaophenonel photooxidant, plasticizer DOP, oxidic polyethylene) 2.4 parts, 28 parts of ethylene/acrylic acid copolymer, 7.8 parts of photodegradation masterbatch, composite inorganic fire retardant (aluminium hydroxide: zinc borate=2.5: 1) 65 parts, 1.5 parts of fully mixing in low speed mixer of stearic acid, mixing 10min left and right in plasticator again, temperature is controlled at 120～130 ℃, treat that plasticizing in flakes, add 5.6 parts of blowing agent ACs, be cooled to 80～100 ℃, mixing 18min, add again 1.8 parts of crosslink agent DCPs, at 80～100 ℃ of mixing 6min,
(4) pack the sheet stock of plasticating into mould, 170 ℃ of temperature, pressure 0.7Mpa, through 10～12min, cooling taking-up blank;
(5) blank is packed in foaming molding mold, under blowing temperature, heating 8～10min, makes its expanded foamed moulding, gets final product to obtain goods again.Properties is measured and is seen attached list 1.
Embodiment 5
(1) pretreatment of starch: first starch is added to high-speed mixer, 125 ℃ dry 22 minutes, to moisture content be 2% left and right, 108 parts of starch, add 3 parts of 4 parts, urea and promotor No. 1, blend 10min, adds 4 parts of carboxymethyl starch, mixes 8min, add again 3 parts of polycaprolactones (relative molecular mass 5000～50000), mix 4min, be added dropwise to 5 parts of Viscotrol C ethylene oxide condensates, mix 10min and obtain treated starch;
(2) calcium carbonate pre-treatment: 102 parts, calcium carbonate is added in another high-speed mixer simultaneously, in the time of 80 ℃, add 5 parts of stearic acid, 3 parts of promotor No. 1,18 parts, calcium oxide, high-speed mixing 15min obtains modified calcium carbonate;
(3) 75 parts of LDPE, 35 parts of the above-mentioned treated starches of handling well, 20 parts of modified calcium carbonates, promotor No. 2 is (by 2-dihydroxy benaophenonel photooxidant, plasticizer DOP, oxidic polyethylene) 2.4 parts, 28 parts of ethylene/acrylic acid copolymer, 6.6 parts of photodegradation masterbatch, composite inorganic fire retardant (aluminium hydroxide: zinc borate=2.5: 1) 52 parts, 1.5 parts of fully mixing in low speed mixer of stearic acid, mixing 15min left and right in plasticator again, temperature is controlled at 120～130 ℃, treat that plasticizing in flakes, add 8.2 parts of blowing agent ACs, be cooled to 80～100 ℃, mixing 15min, add again 2.1 parts of crosslink agent DCPs, at 80～100 ℃ of mixing 10min,
(4) pack the sheet stock of plasticating into mould, 165 ℃ of temperature, pressure 0.8Mpa, through 10～12min, cooling taking-up blank;
(5) blank is packed in foaming molding mold, under blowing temperature, heating 8～10min, makes its expanded foamed moulding, gets final product to obtain goods again.Properties is measured and is seen attached list 1.
Embodiment 6
(1) pretreatment of starch: first starch is added to high-speed mixer, 120 ℃ dry 25 minutes, to moisture content be 2% left and right, 105 parts of starch, add 2 parts of 2 parts, urea and promotor No. 1, blend 12min, adds 5 parts of carboxymethyl starch, mixes 8min, add again 5 parts of polycaprolactones (relative molecular mass 5000～50000), mix 8min, be added dropwise to 3 parts of Viscotrol C ethylene oxide condensates, mix 6min and obtain treated starch;
(2) calcium carbonate pre-treatment: 100 parts, calcium carbonate is added in another high-speed mixer simultaneously, in the time of 80 ℃, add 6 parts of stearic acid, 4 parts of promotor No. 1,15 parts, calcium oxide, high-speed mixing 15min obtains modified calcium carbonate;
(3) 74 parts of LDPE, 38 parts of the above-mentioned treated starches of handling well, 25 parts of modified calcium carbonates, promotor No. 2 is (by 2-dihydroxy benaophenonel photooxidant, plasticizer DOP, oxidic polyethylene) 2.5 parts, 30 parts of ethylene/acrylic acid copolymer, 7.5 parts of photodegradation masterbatch, composite inorganic fire retardant (aluminium hydroxide: zinc borate=2.5: 1) 68 parts, 1.5 parts of fully mixing in low speed mixer of stearic acid, mixing 12min left and right in plasticator again, temperature is controlled at 120～130 ℃, treat that plasticizing in flakes, add 7.8 parts of blowing agent ACs, be cooled to 80～100 ℃, mixing 15min, add again 2.4 parts of crosslink agent DCPs, at 80～100 ℃ of mixing 8min,
(4) pack the sheet stock of plasticating into mould, 180 ℃ of temperature, pressure 0.5Mpa, through 10～12min, cooling taking-up blank;
(5) blank is packed in foaming molding mold, under blowing temperature, heating 8～10min, makes its expanded foamed moulding, gets final product to obtain goods again.Properties is measured and is seen attached list 1.
Comparative example 1
In compound, do not add treated starch, all the other steps are with embodiment 3, and properties is measured as table 1.
Comparative example 2
In compound, do not add photodegradation masterbatch, all the other steps are with embodiment 4, and properties is measured as table 1.
Comparative example 3
In compound, do not add blowing agent AC, all the other steps are with embodiment 5, and properties is measured as table 1.
Comparative example 4
In compound, do not add composite inorganic fire retardant, all the other steps are with embodiment 6, and properties is measured as table 1.
Subordinate list 1
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (7)
1. light, a biological composite degradable polyethylene foams, is characterized in that: its component and parts by weight comprise:
Described treated starch is made up of following component and weight part thereof: starch 100～110, carboxymethyl starch 2～6, urea 0～4, polycaprolactone 2～5, promotor No. 1 2～5 or Viscotrol C ethylene oxide condensate 2～5;
Described modified calcium carbonate is made up of following component and weight part thereof: calcium carbonate 100～105, promotor No. 1 2～4, stearic acid 4～8, calcium oxide 10～20;
Described photodegradation masterbatch is made up of following component and weight part thereof: trivalent iron salt photosensitizers 50～60, light trigger 20～40, photooxidant 15～30;
Described composite inorganic fire retardant is made up of aluminium hydroxide and zinc borate; Described aluminium hydroxide and the mass ratio of zinc borate are (2～3): 1, and aluminium hydroxide sieves through 500 orders;
Described promotor is made up of surface additive and polyacrylamide equivalent for No. 1, and surface additive is selected from any one in titanate coupling agent, boric acid ester coupler, phosphate coupling agent;
Described promotor is made up of following component and weight part thereof for No. 2: 2-dihydroxy benaophenonel photooxidant 60～80, plasticizer DOP 15～30, oxidic polyethylene 30～45.
2. light according to claim 1, biological composite degradable polyethylene foams, is characterized in that: described whipping agent is selected from any in Cellmic C 121, Diisopropyl azodicarboxylate, azoformamide potassium formiate, trichlorofluoromethane, Refrigerant 12, pentamethylene or iso-pentane.
3. light according to claim 1, biological composite degradable polyethylene foams, it is characterized in that: described linking agent is selected from 2,5-dimethyl-2, any in 5-bis-(tert-butyl peroxy base) hexane, dibenzoyl peroxide, dicumyl peroxide or cyamelide triallyl.
4. light according to claim 1, biological composite degradable polyethylene foams, is characterized in that: described compatilizer is selected from any in acrylic acid-grafted polypropylene, maleic anhydride grafted polyethylene, ethylene/acrylic acid copolymer, ethylene/ethyl acrylate multipolymer, ethylene/acetic acid ethylene copolymer or terpolymer EP rubber.
5. light according to claim 1, biological composite degradable polyethylene foams, is characterized in that: the relative molecular mass of described polycaprolactone is 5000～50000.
6. light according to claim 1, biological composite degradable polyethylene foams, is characterized in that: described lubricant is selected from stearic acid, lithium stearate, N, any in N '-ethylenebis stearic amide, Zinic stearas.
7. prepare as the light as described in arbitrary in claim 1～6, a method for biological composite degradable polyethylene foams, it is characterized in that: comprise step:
(1) pretreatment of starch: first starch is added to high-speed mixer, at 110～130 ℃ of dry 20～30min, to moisture content be 1%～3%, add urea and promotor No. 1, blend 8～15min, add carboxymethyl starch, mix 3～8min, then add polycaprolactone, mix 2～8min, be added dropwise to Viscotrol C ethylene oxide condensate, mix 3～10min and be disposed;
(2) calcium carbonate pre-treatment: the same with above-mentioned pretreatment of starch, in general high-speed mixer, carry out, calcium carbonate is added in high-speed mixer, in the time of 80 ℃, add stearic acid, promotor No. 1, calcium oxide, high-speed mixing 15min;
(3) LDPE, the above-mentioned treated starch of handling well, modified calcium carbonate, promotor No. 2, ethylene/acrylic acid copolymer, photodegradation masterbatch, composite inorganic fire retardant, stearic acid are fully mixed in low speed mixer, mixing 8～15min in plasticator again, temperature is controlled at 120～130 ℃, treat that plasticizing in flakes, add whipping agent, be cooled to 80～100 ℃, mixing 12～20min, add again linking agent, at 80～100 ℃ of mixing 5～10min;
(4) above-mentioned sheet stock of plasticating is packed into mould, 160～180 ℃ of temperature, pressure 0.3～1.0Mpa, through 10～12min, cooling taking-up blank;
(5) blank is packed in foaming molding mold, under blowing temperature, heating 8～10min, makes its expanded foamed moulding, gets final product to obtain goods again;
Described promotor is made up of surface additive and polyacrylamide equivalent for No. 1, and surface additive is selected from any one in titanate coupling agent, boric acid ester coupler, phosphate coupling agent;
Described promotor is made up of following component and weight part thereof for No. 2: 2-dihydroxy benaophenonel photooxidant 60～80, plasticizer DOP 15～30, oxidic polyethylene 30～45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010606692.6A CN102532647B (en) | 2010-12-27 | 2010-12-27 | Photo-biological composite degradable polyethylene foam plastic and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010606692.6A CN102532647B (en) | 2010-12-27 | 2010-12-27 | Photo-biological composite degradable polyethylene foam plastic and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102532647A CN102532647A (en) | 2012-07-04 |
| CN102532647B true CN102532647B (en) | 2014-06-04 |
Family
ID=46340764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010606692.6A Active CN102532647B (en) | 2010-12-27 | 2010-12-27 | Photo-biological composite degradable polyethylene foam plastic and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102532647B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807700A (en) * | 2012-07-27 | 2012-12-05 | 苏州市兴吴工程塑胶有限公司 | Formula of foamed polyethylene plastic |
| CN103030875B (en) * | 2012-12-24 | 2014-10-29 | 常州大学 | Modified PP (polypropylene) foaming material and forming method thereof |
| CN103205047A (en) * | 2013-04-26 | 2013-07-17 | 中塑联新材料科技湖北有限公司 | High pressure polyethylene density regulator |
| CN103509207B (en) * | 2013-09-11 | 2016-01-06 | 淮北市蒋疃民和新型建材有限责任公司 | A kind of modified lime stone flour for rubber filling material |
| CN104693706B (en) * | 2013-12-04 | 2018-03-02 | 滁州格美特科技有限公司 | A kind of heat-resisting enhancing shock resistance modified polylactic acid material and preparation method thereof |
| CN104530533A (en) * | 2014-12-30 | 2015-04-22 | 桐城运城制版有限公司 | Preparation method of halogen-free flame retardant polyethylene foamed plastic |
| CN104610643B (en) * | 2015-03-10 | 2015-10-28 | 浙江鹏远新材料有限公司 | Flame-retardant crosslinking polyethylene porous plastics |
| CN105175647A (en) * | 2015-08-03 | 2015-12-23 | 苏州云舒新材料科技有限公司 | Polyethylene foam material and preparation method therefor |
| ES2811846T3 (en) | 2015-09-28 | 2021-03-15 | Henkel Ag & Co Kgaa | Thermally expandable compositions with urea derivatives |
| EP3147323B2 (en) * | 2015-09-28 | 2022-12-28 | Henkel AG & Co. KGaA | Thermally expandable compositions with polysaccharide |
| WO2017198786A1 (en) | 2016-05-19 | 2017-11-23 | Carbios | A process for degrading plastic products |
| CN107652508A (en) * | 2017-09-28 | 2018-02-02 | 句容市武杭传动机械制造有限公司 | A kind of Polyvinyl chloride soft foam plastic |
| CN107857922A (en) * | 2017-10-19 | 2018-03-30 | 合肥朗胜新材料有限公司 | A kind of degradable polyethylene plastics and preparation method thereof |
| CN108164789A (en) * | 2017-12-23 | 2018-06-15 | 安徽农业大学 | One kind is packed for expanded material |
| CN108276781A (en) * | 2017-12-30 | 2018-07-13 | 广东国立科技股份有限公司 | A kind of production technology of plastics capable of being fast degraded |
| CN108329563A (en) * | 2018-02-05 | 2018-07-27 | 高源� | Degradable polymeric packaging material and preparation method thereof under a kind of natural conditions |
| CN109280224A (en) * | 2018-08-16 | 2019-01-29 | 温州磐石机械设备维修咨询有限公司 | A kind of plastic master batch and preparation method thereof that degradation property is good |
| MX2022007496A (en) * | 2019-12-19 | 2022-07-01 | Carbios | Process for degrading plastic products. |
| CN111040255B (en) * | 2019-12-26 | 2021-09-28 | 深圳市虹彩新材料科技有限公司 | Bio-based polyethylene/starch blending modified blown film material and preparation method thereof |
| CN113583400A (en) * | 2021-08-27 | 2021-11-02 | 浙江新恒泰新材料有限公司 | Degradable foaming material and preparation method thereof |
| CN113583333A (en) * | 2021-09-06 | 2021-11-02 | 东莞兆阳兴业塑胶制品有限公司 | Preparation method of degradable foamed shoe material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988006609A1 (en) * | 1987-02-27 | 1988-09-07 | Amrotex Ag | Degradable synthetic compositions |
| CN1237596A (en) * | 1998-05-12 | 1999-12-08 | 北京降解塑料研究中心 | Composite degradable plastics mother material |
| CN1242390A (en) * | 1998-07-16 | 2000-01-26 | 吉林省金鹰实业有限责任公司 | PE raw material with photo degradable and biodegradable properties |
-
2010
- 2010-12-27 CN CN201010606692.6A patent/CN102532647B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988006609A1 (en) * | 1987-02-27 | 1988-09-07 | Amrotex Ag | Degradable synthetic compositions |
| CN1237596A (en) * | 1998-05-12 | 1999-12-08 | 北京降解塑料研究中心 | Composite degradable plastics mother material |
| CN1242390A (en) * | 1998-07-16 | 2000-01-26 | 吉林省金鹰实业有限责任公司 | PE raw material with photo degradable and biodegradable properties |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102532647A (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102532647B (en) | Photo-biological composite degradable polyethylene foam plastic and preparation method thereof | |
| CN102585465B (en) | Hollow microsphere reinforced polylactic acid (PLA)-based composite foaming material and preparation method thereof | |
| CN102924939B (en) | Waste tire rubber powder-filled plastic wood profile and preparation method thereof | |
| CN103289177A (en) | Environment-friendly degradation modified linear low density polyethylene foam material and preparation method thereof | |
| CN103102556A (en) | Bamboo-plastic composite material and preparation method and application thereof | |
| KR101365615B1 (en) | Polymer composition for oxo-biodegradable film with high strength in early age and method of manufacturing the same, oxo-biodegradable film thereby | |
| CN110591309B (en) | Biodegradable foamed plastic composite material and preparation method and application thereof | |
| CN106700362A (en) | Polyvinyl alcohol full-biodegradation film having water resistance and preparation method thereof | |
| CN103396675B (en) | Raw material treatment method for injection molding grade micro-foaming wood-plastic composite material | |
| CN106117704A (en) | A kind of high-performance environment-friendly dense plastic materials packaging bag and preparation method thereof | |
| CN106750998A (en) | A kind of novel flame-retardant PP foam material and preparation method thereof | |
| CN114591582A (en) | Photo-biodegradable plastic film and preparation method thereof | |
| CN105001548A (en) | PVC wood plastic profile | |
| CN112920571A (en) | Modified PLA (polylactic acid) and PHA (polyhydroxyalkanoate) blending material and preparation method thereof | |
| CN104910499A (en) | Environmentally digestible plastic preparation method taking calcium carbonate as filler | |
| CN106117814A (en) | A kind of automotive upholstery microporous foam PP composite material and preparation method thereof | |
| CN103724752A (en) | Novel environment-friendly mulching film | |
| CN102617969B (en) | Preparation method of thermoplastic konjac glucomannan/poly butylenes succinate blending material | |
| TWI410459B (en) | Heat - resistant lightweight environmental protection package and its composition | |
| CN111574815A (en) | PHA (polyhydroxyalkanoate) -modified PPC (polypropylene)/TPS (thermoplastic polystyrene) biodegradable resin and preparation method thereof | |
| CN109233126A (en) | A kind of flame-retardant expanded plate of polystyrene and preparation method | |
| CN113563703A (en) | Production process of degradable color master batch | |
| CN110577686A (en) | degradable packaging plate with antibacterial effect and preparation method thereof | |
| CN113372621A (en) | Degradable express bag material and preparation method and application thereof | |
| CN111548616A (en) | Biodegradable garbage bag and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Photo-biological composite degradable polyethylene foam plastic and preparation method thereof Effective date of registration: 20191202 Granted publication date: 20140604 Pledgee: Chuzhou economic and Technological Development Corporation Pledgor: Shanghai Jieshijie New Materials (Group) Co., Ltd. Registration number: Y2019980000815 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |