49 results about "Renewable Polyethylene" patented technology

This invention is a kind of regenerative environmental protecting type solid core wooden door and window. It is combined with frame structural section, sector structural section, middle frame structural section and sealing strips. The structural sections are solid core structural section. Their side faces are coated with plastic layer. The indoor face and outdoor face are coated with aluminum-coated layer through glue line. The main raw materials of the said solid core structural sections are regenerative polyolefine resin, plant fiber filler and auxiliary agent. The said regenerative polyolefine resin is the mixture of regenerative polypropylene and regenerative polyethylene. The plant fiber filler is wood fiber powder, hemp fiber powder, bamboo fiber powder, grass fiber powder, chaff powder or straw fiber powder. This invention decreases environmental pollution. It will not generate harmful gas when being heated. It also increases the anti-ultraviolet radiation, aging resistance and heat insulating performances.

An environment-protection, rat-proof and ant-proof optical cable comprises a cable core and a sheath layer of a three-layer structure, wherein a steel strip or steel wire layer (3), a regeneration polyethylene material protection layer (2) and a nylon protection layer (1) are sequentially arranged from inside to outside, and the regeneration polyethylene material protection layer (2) is tightly attached to the nylon protection layer (1). The invention further relates to the technology for producing the environment-protection, rat-proof and ant-proof optical cable. Nylon adopted in one of the heath layer so that the environment-protection, rat-proof and ant-proof optical cable is good in rigidity and toughness. In addition, the corresponding processing technology is provided, compensation is carried out aiming at self defects of nylon, and the produced optical cable can prevent rats and ants efficiently. Simultaneously, the optical cable is low in cost, and the technical problem existing in the prior art is solved.

A method for purifying reclaimed polyethylene, such as polyethylene reclaimed from post-consumer use or post-industrial use, is disclosed. The method involves obtaining the reclaimed polyethylene and contacting it at an elevated temperature and pressure with a fluid solvent to produce an extracted reclaimed polyethylene. The extracted reclaimed polyethylene is dissolved in a solvent at an elevated temperature and pressure to produce a polyethylene solution, which is purified at an elevated temperature and pressure by contacting the polyethylene solution with solid media to produce a purer polyethylene solution. A purer polyethylene is then separated from the purer polyethylene solution.

The invention discloses a high-viscosity asphalt modifier, a preparation method and a preparation method of modified asphalt, comprising the following components in mass fractions: 40-70 parts of thermoplastic styrene-butadiene rubber polymer, 15-45 parts of modified styrene-butadiene rubber 5-20 parts of recycled polyethylene, 10-45 parts of recycled ethylene-vinyl acetate copolymer, 0-5 parts of crosslinking agent and 0-5 parts of stabilizer. Through the specific ratio and processing technology of the present invention, the high-viscosity asphalt modifier obtained after compounding can improve the high and low temperature performance and aging resistance of the base asphalt, the preparation process is simple and economical, and it is further applied to the paving of drainage asphalt pavement It can prolong the service life of drainage asphalt pavement.

A method for purifying a reclaimed polyethylene is provided. The method involves obtaining reclaimed polyethylene, contacting it with a first fluid solvent to produce an extracted reclaimed polyethylene then dissolving the extracted reclaimed polyethylene in a solvent to produce a first solution comprising polyethylene and suspended contaminants. The first solution is settled to produce a second solution comprising polyethylene and remaining contaminants. The second solution is purified by contacting the second solution with solid media to produce a third solution comprising purer polyethylene. Finally, the purer polyethylene is separated from the third solution.

The invention discloses a special modified recycled polyethylene material for pipes and pipe fittings and a preparation method of the special modified recycled polyethylene material, so that the problems of higher new polyethylene consumption and higher production cost of an existing special modified polyethylene material for pipes and pipe fittings are solved. The special modified recycled polyethylene material mainly comprises, by weight, 5%-55% of polyethylene, 10%-70% of recycled polyethylene, 5%-20% of toughening agents, 5%-40% of talcum powder, 5%-40% of calcium carbonate, 1%-5% of impact modifiers, 0.1%-2% of dicumyl peroxide, 0.4%-2% of antioxidants 1010, 0.5%-3% of silane coupling agents, 0.5%-3% of polyethylene wax, 0.5%-3% of calcium stearate and 0.4%-4% of pigment. Waste polyethylene is recycled and reused effectively, and the special modified recycled polyethylene material for the pipes and the pipe fittings and the preparation method have the advantages of resource saving, environmental protection, cost reduction and the like.

An environment-protection, rat-proof and ant-proof optical cable comprises a cable core and a sheath layer of a three-layer structure, wherein a steel strip or steel wire layer (3), a regeneration polyethylene material protection layer (2) and a nylon protection layer (1) are sequentially arranged from inside to outside, and the regeneration polyethylene material protection layer (2) is tightly attached to the nylon protection layer (1). The invention further relates to the technology for producing the environment-protection, rat-proof and ant-proof optical cable. Nylon adopted in one of the heath layer so that the environment-protection, rat-proof and ant-proof optical cable is good in rigidity and toughness. In addition, the corresponding processing technology is provided, compensation is carried out aiming at self defects of nylon, and the produced optical cable can prevent rats and ants efficiently. Simultaneously, the optical cable is low in cost, and the technical problem existing in the prior art is solved.

The invention discloses environment-friendly water-permeable concrete for highway engineering. The environment-friendly water-permeable concrete is prepared from cement, palm ash, coarse aggregate, porous fine aggregate, fiber enhancer, micro silica powder and water. The invention also discloses a preparation method of the concrete. Compared with the prior art, the palm ash which is obtained afterpalm shells are burnt up, renewable polyethylene fibers and renewable polypropylene fibers are adopted as the raw materials for reinforcement of the concrete, waste is turned into treasure, the resources are utilized reasonably, and therefore the concrete has a significant meaning on environmental protection work. Additionally, the environment-friendly water-permeable concrete for highway engineering can improve the water-permeable performance remarkably when ensuring the pressure resistance and can also meet construction demands for highways.

A method for purifying a reclaimed polyethylene is disclosed. In one embodiment, the method involves obtaining reclaimed polyethylene, contacting the reclaimed polyethylene with a first fluid solvent to produce an extracted reclaimed polyethylene; then dissolving the extracted reclaimed polyethylene in a solvent to produce a first solution comprising polyethylene. The first solution is settled and then filtered. A purer polyethylene is separated from the resulting solution.

The invention discloses modified recycled polyethylene plastic for a plastic pipeline and a preparation method of the modified recycled polyethylene plastic. The modified recycled polyethylene plasticcomprises a plastic base material, a modified reinforcing and toughening additive and a processing aid, wherein the plastic base material comprises HDPE waste plastic, LDPE waste plastic, LLDPE wasteplastic and ethylene copolymer waste plastic; the modified reinforcing and toughening additive comprises a silane compound, maleic anhydride, a grafting initiator, a dehydration catalyst and an antioxidant; and the processing aid comprises a rigid filler, an internal lubricant and an external lubricant. The modified recycled PE plastic is prepared from the plastic base material, the modified reinforcing and toughening additive and the processing aid, and the obtained modified recycled PE plastic is high in impact strength and stable in performance.

The invention relates to the technical field of polypropylene materials, particularly to a recycled polypropylene material and a preparation method thereof. The recycled polypropylene material is prepared from the following components in parts by weight: 70 to 95 parts of regenerated polypropylene, 1 to 30 parts of regenerated polyethylene, 1 to 10 parts of a toughening agent, 0.1 to 1 part of anantioxidant and 0.1 to 2 parts of a lubricating agent. The invention provides a recycled polypropylene material, wherein regenerated polypropylene is used as base material, regenerated polyethylene isused as a toughening component, and a certain amount of a toughening agent, an antioxidant and a lubricant are compounded, so that environmental pollution caused by waste plastics is relieved, resource utilization is realized, petroleum resources are saved, the strength and toughness of the recycled polypropylene material are remarkably improved, and the toughening cost of the recycled polypropylene material is reduced.

The invention relates to the field of waste plastic regeneration technologies and pipe preparation methods, in particular to a modified regenerated polyethylene corrugated pipe material and a preparation method thereof. The modified regenerated polyethylene corrugated pipe material is at least prepared from the following preparation raw materials: 60 to 90 parts of a regenerated polyethylene material, 5 to 20 parts of a filler, 1 to 5 parts of a heat stabilizer, 1 to 5 parts of a flame retardant and 1 to 3 parts of other auxiliary agents. The corrugated pipe material prepared from a recycled polyethylene material of a plastic packaging barrel overcomes the problem of resource waste of the plastic packaging barrel, realizes resource utilization and decreases environmental pollution; and therecycled polyethylene material is used as a base material, and is compounded with a certain amount of the filler, the flame retardant, the heat stabilizer and other auxiliary agents to prepare the corrugated pipe material with excellent flame retardancy and mechanical properties, so the production cost of the corrugated pipe is greatly lowered.

The invention relates to the technical field of pipes. The invention relates to a corrosion-resistant PE water supply pipe and a preparation method thereof. The corrosion-resistant PE water supply pipe is prepared from the following raw materials in parts by weight: 60 to 80 parts of PE resin powder, 20 to 30 parts of a regenerated polyethylene material, 10 to 16 parts of organic silicon rubber, 5to 10 parts of a polyacrylamide / nano metal quantum dot composite material, 4 to 8 parts of modified nano graphene, 3 to 6 parts of organic montmorillonite, 2 to 4 parts of polylactic acid fibers, 1.5to 3.5 parts of an antioxidant, 1 to 3 parts of a silane coupling agent and 0.5 to 1 part of a lubricant. The PE water supply pipe has good corrosion resistance, can resist corrosion of various chemical media, especially acid, alkali, salt and oil, and is free of electrochemical corrosion, high in environmental adaptability, free of rotting and corrosion after being used for a long time, durable,simple in preparation method, easy to operate and good in market prospect.

Large volumes of recycled polyethylenes are available for reuse. It would be desirable to prepare films from recycled polyethylene, however, the technical demands for many types of films can make this very difficult. Provided herein are films, for example, stretch films; shrink films; films for vacuum packages and films for dunnage packaging, that may be prepared from a blend of recycled polyethylene with “virgin” polyethylene.

A method of making a foam using a renewable resource and a foam thereof is disclosed. The foam is made using green polyethylene polymers made from renewable sugarcane ethanol. The use of these polymers to make foam has the potential to reduce carbon dioxide gas emissions by more than half. The foam can be used in a variety of applications and can also be made with blends of renewable LDPE and non-renewable LDPE.

The invention provides improved tableware, comprised of plates, bowls and cups, which are formed from paperboard sheets comprised of rapidly renewable resources and are recyclable, biodegradable and compostable. The paperboard sheets are comprised of bamboo, bagasse or any combination or singularity thereof, and are coated with a polymer such as biopolyethylene, also known as renewable polyethylene, polyethylene (PE) or polylactide (PLA), and decorated with FDA approved inks and dyes, and are formed in such a manner that the resulting tableware is capable of containing a liquid without filtration or seepage upon the user.

The invention discloses a regenerated polyethylene material containing phosphogypsum. The regenerated polyethylene material comprises the following components in parts by mass: 50-70 parts of phosphogypsum; 25-45 parts of polyethylene recycled material; 10-30 parts of artemisia apiacea powder; 4-8 parts of stearic acid; 3-6 parts of methyl cellulose; 2-6 parts of epoxy resin; 0.1-0.3 part of industrial essence; 0.25-0.5 part of Chinese prickly ash; and 3-6 parts of orange peel. The preparation method comprises the following steps: calcining phosphogypsum to remove moisture, and grinding to 100-1300 meshes; screening the polyethylene recycled material, cleaning, spin-drying and pulling into pieces; mixing the phosphogypsum and the polyethylene recycled material, adding water and stirring; adding other raw materials, cutting into particles by a granulator, drawing and cooling by a drawing machine, and finally cutting into particles by the granulator according to requirements to obtain the regenerated polyethylene material containing phosphogypsum. The regenerated polyethylene material containing the phosphogypsumhas the advantages that the material has good strength and heat resistance, meets the technical requirements of regenerated polyethylene materials and is applicable to infrastructure preparation raw materials and has a wide market.

The invention relates to a high molecular material and a preparation method thereof, and discloses a crosslinking master batch which is controllable in crosslinking degree and is used for regenerated polyethylene and a preparation method thereof. According to the preparation method, polyethylene waste plastic is taken as a main raw material, CPE is taken as a carrier plastic, moderate crosslinking modification is adopted, and the crosslinking master batch which is controllable in crosslinking degree and is used for regenerated polyethylene is prepared. Optimization selection of modifiers is the characteristic of the preparation method. Coupling agents are added for modification, appropriate crosslinking is realized, tight coupling with polyethylene is realized, plastic material performance is improved, optimization on the crosslinking agents is carried out, synergistic interaction of the three crosslinking agents is realized, viscosity is reduced, mechanical properties are improved, and economic benefits and social benefits are excellent.

The invention relates to the field of waste plastic regeneration technologies and pipe preparation methods, in particular to a high-strength flame-retardant drainage pipe and a preparation method thereof. The high-strength flame-retardant drainage pipe is prepared from the following raw materials in parts by weight: 60 to 90 parts of regenerated polyethylene material, 5 to 20 parts of a filler, 1to 10 parts of metal powder, 1 to 10 parts of a flame retardant and 1 to 5 parts of other auxiliary agents. According to the high-strength flame-retardant drainage pipe, the polyethylene material regenerated from a waste plastic barrel is used as a base material, so the treatment strength of the waste plastic barrel is greatly improved, environmental pollution is reduced, resource utilization is realized, and production cost is reduced; meanwhile, a certain amount of other components such as the filler, the flame retardant, the metal powder and other auxiliaries are compounded, and the components are reasonably compounded to generate a synergistic interaction effect, so the drainage pipe has the characteristics of high strength and excellent flame retardant property.

The invention discloses a regenerated polyolefin plastic composition and its preparation method and application, which comprises 100 parts of regenerated polypropylene, 10-100 parts of regenerated polyethylene, 10-30 parts of glass fiber, 1~5 parts of phosphate ester, 0.1~0.5 parts of antioxidant 1010, 0.1~0.5 parts of antioxidant 168 and 0.5~2 parts of lubricant are prepared according to the parts by weight. The recycled polyolefin combination in the present invention The product solves the problems of poor toughness, low strength, and poor stability of waste polyolefin materials. The recycled polyolefin in the invention has excellent toughness and strength, and at the same time realizes turning waste into treasure and saving costs.

The invention discloses a recycled material for preparing an automobile bumper. The recycled material is prepared from the following raw materials in percentage by weight: 40-50% of recycled polypropylene, 0.1-1% of an elastomer, 0.1-3% of an inorganic mineral filler, 0.1-3% of diatomite, 0.1-3% of an antioxidant and 40-60% of recycled polyethylene. The recycled material has the characteristics ofbeing low in odor, impact-resistant and high in strength.

A polyethylene-polypropylene composition obtainable by blending a) 80 to 97 wt.-% of a blend (A) comprising A-1) polypropylene and A-2) polyethylene, wherein the weight ratio of polypropylene to polyethylene is from 3:7 to 7:3, and wherein blend (A) is a recycled material, which is recovered from a waste plastic material derived from post-consumer and / or industrial waste; and b) 3 to 20 wt.-% of a compatibilizer (B) being a C2C8 plastomer, having—a DSC melting point of below 75° C. (ISO11357);—an MFR2 (ISO1133, 2.16 kg load at 190° C.) of equal or below 1.5 g / 10 min; and—a density of equal or lower than 885 kg / m3 (ISO1183),wherein the ratio of MFR2 (blend (A) (ISO1133, 2.16 kg load at 230° C.) / MFR2(compatibilizer (B) (ISO1133, 2.16 kg load at 190 ° C.), is in the range 3.0 to 15; and c) 0 to 1.0 wt.-% of a stabilizer or mixture of stabilizers.

The invention discloses an antistatic shoe material and a preparation method thereof, comprising the following components in parts by weight: 50-70 parts of ethylene-vinyl acetate copolymer, 50-70 parts of recycled polyethylene, 4-6 parts of foaming agent, 0.1-1 part of crosslinking agent, 0.1-1 part of stearic acid, 0.1-1 part of zinc oxide, 10-15 parts of conductive carbon black, and 0.3-0.8 part of accelerator. Conductive carbon black itself is a semiconductor material with a low resistivity. The conductive carbon black is in the shoe material and plays a certain conductive role, so that the present invention has an antistatic effect.

The invention provides a packaging composite material layer, a packaging container and a manufacturing method of the packaging composite material layer, the packaging composite material layer is usedfor packaging liquid food, and the packaging composite material layer comprises an outer layer, a paper layer and a composite layer which are sequentially laminated, wherein the outer layer and the composite layer are made of renewable polyethylene extracted from tall oil and / or grease. According to the present invention, the packaging composite material layer is prepared from the renewable polyethylene extracted from the tall oil and / or the grease so as to effectively reduce the emission of the greenhouse gas, and the packaging composite material layer is prepared by using the renewable resource, land, water and air with high biodiversity value and high carbon reserve can be effectively protected, and sustainable development of environment, society and economy can be promoted in a globalsupply chain.

The invention relates to the technical field of high polymer materials, in particular to a printable rotational molding polyethylene composite material and a preparation method thereof. The regenerated polyethylene material at least comprises the following components in parts by weight: 80-120 parts of regenerated polyethylene, 10-50 parts of an auxiliary agent, 1-10 parts of a dispersing agent, 1-5 parts of an antioxidant, 2-15 parts of a filler and 1-10 parts of PE grafted maleic anhydride. According to the invention, the printable rotational molding polyethylene composite material is prepared from the regenerated polyethylene, the auxiliary agent, the dispersing agent, the antioxidant, the filler and the PE grafted maleic anhydride, so that the prepared composite material has excellentmechanical properties, high tensile strength and bending strength, good printability, excellent printing effect and low preparation cost.

A method for purifying a reclaimed polyethylene is provided. The method involves obtaining reclaimed polyethylene, contacting it with a first fluid solvent to produce an extracted reclaimed polyethylene then dissolving the extracted reclaimed polyethylene in a solvent to produce a first solution comprising polyethylene and suspended contaminants. The first solution is settled to produce a second solution comprising polyethylene and remaining contaminants. The second solution is purified by contacting the second solution with solid media to produce a third solution comprising purer polyethylene. Finally, the purer polyethylene is separated from the third solution.