TW553993B - Polyethylene granular composition recycled from waste plastic bags or films - Google Patents

Abstract

A polyethylene (PE) granular composition recycled from waste plastic bags or films has properties of altered characteristics of plastic bags, enhanced properties of processability, tensile strength, compression resistance, anti-UV, anti-oxidation, etc., low combustion value, low smoke formation during burning, non-caking after incineration, fully powdered after ashing. The composition comprises: 50-80 wt% of a filler, 2-5 wt% of a lubricant, 1-3 wt% of a dispersant, 12-47 wt% of mixed PE pellets, in which the total amount of the filler, the lubricant, the dispersant and the mixed PE particles is 100 weight part. The filler is calcium carbonate with a particle size of 2 to 3 mu. The mixed PE particles comprise 50 to 70% of recycled PE pellets and 30 to 50% of new PE pellets. The molecular weight of the PE pellets is 2000 to 10000.

Description

553993 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description (丨), Field of Invention: The present invention is about the composition of a kind of petal material, the system is about the kind of use, which changes the characteristics of plastic bags. Increase processability, tensile resistance, compression resistance, anti-null, anti-oxidation and other characteristics, and low combustion value, low smoke during combustion, no agglomeration after incineration, and can be completely turned into powder after use. The composition which is recycled into polyethylene pellets is recovered. Background of the Invention: After use, plastic bags are generally treated by incineration, burial or stacking. 'Photodecomposition bags use light, oxygen, heat and other factors to allow Na bags to automatically oxidize and thermally decompose anti-filament flap bags. Or, such as the use of burial treatment at the age of unpacking. The aforementioned plastic bag treatment method has many problems that cannot be solved. The photodecomposition bag is buried as if decomposed, and the sister decomposition bag f is hugely buried. Therefore, how to effectively deal with plastic county is a problem that is rarely solved. Erjin 'Publication No. 256846 proposed a polyethylene blow mold composition suitable for incinerator destruction, which has a burn value, low carbon smoke, burning blocks and flammable impurities, but cannot be improved in some physical impurities. In order to improve the "blanket of the shirt", and the fine collection of the material is directly cricketized, and cannot be recycled to reduce the production of polyethylene polymers. Summary of the invention: The main purpose is to provide a plastic recycling force that can be recycled after use, such as physical properties, tensile strength, compression resistance, UV resistance, oxidation resistance, etc. Physical plastic bags or films can be recycled and reused to achieve the above purpose. to make

(Please read first, the precautions on the back before filling in too WC

553993 Employees of the Central Standards Bureau of the Ministry of Economic Affairs cooperate with Du Du to produce A7 B7. 5. Description of the invention (l) '♦ The composition of B plastic pellets' includes 50-80% by weight of filler, 2-5% by weight of lubrication Agent, 1-3% by weight dispersant, 12-47% by weight mixed polyethylene plastic granules, wherein the mixed polyethylene plastic granules are 50 ~ 70% recycled polyethylene plastic granules and 30 ~ 50% The proportion of the new polyethylene plastic granules is mixed, and the molecular weight of the plastic granules is between 2000 and 1000Q. The total weight of the four ingredients of the aforementioned filler, lubricant, dispersant and mixed polyethylene plastic granules is 100 parts. Carbonate with a particle size of 2 ~ 3 //. In the present invention, the recycled plastic bag or film is processed into plastic granules, and then mixed with new plastic granules through a plastic granule process to produce a finished plastic granule. It can reduce the new plastic granules by about 5G ~ 70%, which is the feature of this invention—. Finally, this finished product is sent to the factory to be made into a plastic bag or plastic film, which can change the characteristics of the plastic bag and increase physical properties such as processability, tensile strength, compression resistance, UV resistance, and oxidation resistance, which is also one of the characteristics. " One of the important features of the present invention is that the recycled plastic particles contain part of the additives, so it is not necessary for each additive such as oxidant, antioxidant, polar ionized polymer, etc. in the patent case No. 256846. All of them need to be properly compared to the new Na particle and the new Na particle, which can be solved, the hair, refining, grinding, dispersing, and miscibility with various glues. In addition, when the temperature of the job is low, the toxic products such as maids, dioxins, and dioxins are returned to the bag or the film is ashed, and it can be completely turned into a powder. You Guanjin Γ, for the features and technical contents of the present invention, please refer to the following detailed description, but the detailed description is for reference and explanation only, and Asia and Africa are used to limit the present invention in any way. Detailed description of the invention: 41 (Please read the notes on the back before filling in the wooden pages), 1Γ Paper size t ϋ ϋ X 297 mm) 553993 A7

Printed by the Consumers' Cooperative of the Ministry of Economic Affairs, Bureau of Labor and Economics The present invention firstly recycles plastic bags or films, and then cleans and dries so that the debris on the surface of the plastic bags can be cleaned up. Feed the plastic bag or film into the crusher for crushing, first coarse crushing, then fine crushing to make a small plastic sheet. Then, the plastic sheet is stirred and heated to melt it into a liquid state, and the melted liquid is sent to the extruder by a screw conveyor, and the extruder sends the melted resin (polymer (Ethylene dilute) Cool and cool down to form a linear shape. Finally, the linear resin is cut into granules by a pelletizer and sent to cooling water for cooling, followed by a dry refining treatment to dry and recover the granular resin. The recovered polyethylene particles include 60 75% Nanxiong, Du polyethylene and 25 ~ 40% linear low-density polyethylene. The recovered granular resin is mixed with the new granular resin in a proportion, preferably, # 50 ~ 70% of recycled resin pellets (polyethylene pellets) and 30 ~ 50% of new resin pellets (polyethylene pellets) are mixed into a mixed polyethylene plastic pellet. Mixed polyethylene plastic pellets, fillers, and developer 3. The system is divided into private chains and rhyme chains to make their present chains even. The above mixed weight ratio includes 12 to 47% by weight of a mixed polyethylene plastic, 50-80% by weight of a filler, 2 to 5% by weight of a lubricant, and 3% by weight of a dispersant, wherein the polyethylene is Plastic pellets have a molecular weight between 2000 and 1_0. Then enter the kneader to carry out the kneading step. When kneading and kneading in the chain mixer and the kneader, each chain and kneading is performed under the condition of 120-180 °, and after kneading for 30 minutes, it is pressed out and granulated, and filtered. , And then two-stage cooling step = granulation cold upset collection. In the present invention, the cleaned plastic bag or film can be directly put into the chain mixer and mixed with the new polyethylene particles. The steps are the same as before. In the above step, the filler may be 2 ~ 3 // size calcium carbonate (talc), marble, mica, gypsum or aluminum hydroxide. And the lubricant can be fatty acid 醯 X 297 mm) a 7-

(Please read the precautions on the back first and then fill in Jw «clothing, ι ^ τ · # · 553993 A7 、 description of the invention (+ amine or stearates. Preferably, the lubricant can be oil-fed amine grease) Acid or calcium stearate. * Hard = Nissei is a recycled plastic bag or film, so when it is made into polyethylene particles, it contains polar ionized polymers to help compensate for its processing and machinery, while recycling plastic Bags or films also have linear low-density polyethylene, which is good for manufacturing finished products. This product is printed by the consumer cooperatives of employees of the Ministry of Technology and Economy, China Standards Bureau, and recycled plastic bags or films. Low-density polyethylene is good for scraping. ^ It is good for the manufacture of finished products. The composition of this hair _ composition is much lower than that of the ';,' announcement. Patent No. 256846 has a lot of additives, and can improve: It can also reduce the properties of fillers that affect the stability, degree, and thermal properties. The plastic particle towels added in the present invention can be added separately as described in the Announcement No. 256846, and the additives such as Proportional mixing of oxidants, antioxidants, and recording materials Particles and new plastic granules? Can be solved ^ Better implementation examples: 1. Dispersion:, with sample 1 (%, of which the recovered sample accounts for 6% and the new sample _, the particle size is 3. 2M fine · 5M / Μ After extruding and cutting into a range of particles, send it to a blown bag extruder to extend 5 pieces == Lai ^ w degrees at ⑽.〇boots. Jianma 5 = 5f area 'to determine her number in a fluorescent level or through the system. 2. Moisture: i, t = 1 gg of f-type material placed on the crust, put it in the oven and add ^ ^ ⑸ small 0 ceremony, in a dry towel, cool for 20 minutes, and then fine / ash to find the heating The percentage of reduction is the moisture content k = m. Cm IIIII-! It — (Please read the precautions on the back before filling in the water page dance •-I--、 The paper size depends on the country ^ STCNS) A4 ^ 1T ^ 7mm) 553993 A7 ----_ B7 V. Description of the invention ": ~~ ---- ~ 埶 Take the ingredients 1 吆 into a platinum tongs pot, and then take it out at 450 ° C x 2 hours in a high temperature furnace and then take it out. , Cool for 30 minutes, and then weigh it to get the net weight of calcium carbonate 0

佥 End project _, Moisture content of the two components of waste plastics,% — = —? 〇 · 23/0. 24 Material ash content,% 15. 59/14. 83 Plastic flammable component,% 84.18 / 84. 93 Glue Bag elemental analysis carbon, 0 / 〇64.03 or thin hydrogen, 0 / 〇11.73 membrane oxygen, 0 / 〇8. 97 nitrogen,% 0.00 sulfur '% 0.06 gas,% 0.14 calorific value high calorific value (dry basis), 7,211 kcal / kg low calorific value (dry basis), 6,576 kcal / kg ----------------- * ---- ^ — order ------ (please first Read the notes on the back and fill in the page too.) The formula H (1 > H (h) -6 (w + 9H) (kcal / kg), H (1): low calorific value (dry basis) (kcal / kg); H (h): high calorific value (dry basis) (kcal / kg); w: moisture (%); H: Hydrogen content (%). Poison test items mg / L before combustion mg / L after combustion Announcement Standard Reliable Mercury and its compounds 0.025 0.0009 0.2 Dissolved (Total Mercury) This paper is about the same as the Chinese National Standard (CNS) A4 Specifications (2 [〇 > < 297 mm) 553993 A7 B7

V. Description of the invention (G-out program ship and its compounds (total lead) 0.119 ND (< 0.014) 5.0 Cadmium and its compounds (total cadmium) ND (< 0.010) ND (< 0.010) 1.0 Chromium and its compounds ( Total) 0.173 ND (< 0. 0098) 5.0 Hexavalent chromium compound ND (< 0. 0098) ND (< 0. 0093) 2.5 God and its compounds (total arsenic) ND (< 0. 030) ND (< 0. 030) 5.0 Copper and its compounds (total copper) 0.393 5.57 15 · 0 Zinc and its compounds (total zinc) 0.727 44.7 25.0 Please read on the back

Page if the Ministry of Economic Affairs wins the bid. The quasi-bureau ’s consumer cooperation printed plastic bag test results: Sample number Sample size (mm) Burning poisonous gas (ppm) HC1 HF S〇2 N〇x HCN CO Sample 1 75x75x0.28 1 0 0 4 0 100 Sample 2 75x75x0.26 1 0 0 2 0 100 Sample 3 75x75x0.28 1 0 0 2 0 100 Average 1 0 0 3 0 100 ABD-0031 Specification requirements: HCl < 150ppm HF < 100ppm S〇 2 < 100ppm N0x < 100ppm HCN < 150ppm CO < 3500ppin recycled plastic bag strength test results: The paper size of the paper is applicable to China National Standard (CNS) A4 now (210X 297mm)-8〆553993 Λ7 B7 Printed by the Consumers' Cooperative of the China Bureau of Economic Affairs of the Ministry of Economic Affairs ^ V. Description of the invention (7) Test item Test results Tensile strength 23 N / 25IHII1 Horizontal 21 N / 25mm Elongation 380% Vertical 490% Tear strength 734 gf crosswise 1019 gf heat seal strength 17 N / 25mm Recycled drawstring bag strength test results: Test item Test result Tensile strength 23 N / 25mm longitudinal 17 N / 25mm Elongation 430% longitudinal 520% tear strength In the direction of 532 gf, 789 gf, heat-sealing strength, 21 N / 25mm, it is known from the above results that the present invention is more resistant to i ml than the publication No. 256846 patent ----n ---- a. ≫ t »i I (Please read the notes on the back before filling in the page.) The size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (210 > < 297g) 553993 5. Description of the invention (A7 B7 Ministry of Economic Affairs) The staff of the Standards Bureau cooperated to make the printing tensile strength, elongation, tearing strength, heat sealing strength, etc. better. The burning cake of the present invention has low temperature and health, and does not produce toxic gases such as freshness. After ashing, it can be completely turned into powder. The invention uses low-cost, or even free, recycled plastic raw materials to make particles, and it is mixed with some high-performance dynamic tearing particles to reduce the cost. It can increase the workability, tensile, anti-wish, anti-W, and anti-oxidant physical properties, which is a major feature of the present invention. ^ The present invention can be added with different materials or without other materials according to different characteristics. Miscellaneous inspection is provided by incineration, which can be indicated on the flap bag, so it is not To add antioxidants. If f is to be used in conjunction with sunlight, an antioxidant must be added. And preferably, during incineration and landfilling, it is not necessary to add an oxidant, unless it is collected and matched with sunlight, it is necessary to add a chemical agent. The present invention mixes the petal particles and the new plastic in an appropriate ratio, which can solve the problem of additives, so it is not necessary to add each additive such as an oxidant, an antioxidant, and a polar ionization polymer as described in Announcement No. 256846 ^ ίίί: Both of the present invention have a reduction in chemical properties, and an improvement in the efficacy of the ingredients of the anti-oxidant warfare polymerization as compared with the patent case No. 256846. sa, "The composition and proportion of the present invention Chen Chengwu is different from that of Announcement No. 256846", which can reduce the new plastic _ 5G ~ ·, and it is also different. The present invention includes recycling plastic bags or films and new 2 The physical properties of the products made by "== mixed" are more than the physical characteristics of the conventional technology, and they are consistent with the requirements of the patent for invention.

, \ Q —Aw— (Please read the notes on the back before filling in the page) •-I-. ^ _Wl.

Claims (1)

533993 / 、、 Scope of patent application1. A plastic bag or film that is recycled and then made into polyethylene plastic pellets, including 50-80% by weight of filler, 2-5% by weight of lubricant, 1- 3% by weight of dispersant, 12-47% by weight of mixed polyethylene plastic granules. The total weight of the four components of the aforementioned filler, lubricant, dispersant and mixed polyethylene plastic granules is 100 parts, and the filler is 2 ~ 3 // size calcium carbonate, where the mixed polyethylene plastic granules are mixed at a ratio of 50 to 70% recycled polyethylene plastic granules and 30 to 50% new polyethylene plastic granules, and the polyethylene plastic granules are The molecular weight is between 2000 and 10,000. 2. The composition of polyethylene plastic granules recovered from plastic bags or films after use according to item 1 of the scope of the patent application, wherein the lubricant is oleylamine, erucamide, zinc stearate or hard Calcium fatty acid. 3. Recycling the plastic bag or film after use according to item 1 of the scope of the patent application to make a composition of polyethylene plastic pellets, which are kneaded in a kneader and kneaded at 120-180 C for 20-30 minutes , And then cut through the die to make the appropriate size of pellets. 4. Recycling the plastic bag or film after use according to item 1 of the scope of the patent application to form a polyethylene nanoparticle composition, wherein the polyethylene particles at this time include 60 to 75% of high-density polyethylene and 25 ~ 40% Linear Low-density Polyethmide 0 (Please read the precautions on the back before filling this page) Order --------- Line! Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs π This paper size applies to China National Standard (CNS) A4 (210 x 297 '^^)