46 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.

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.

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.

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 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 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.

The invention discloses a regenerated polyolefin plastic composition as well as a preparation method and application thereof. The regenerated polyolefin plastic composition is prepared from the following components in parts by weight: 100 parts of regenerated polypropylene, 10-100 parts of regenerated polyethylene, 10-30 parts of glass fiber, 1-5 parts of 2-ethylhexyl diphenyl phosphate, 0.1-0.5 part of antioxidant 1010, 0.1-0.5 part of antioxidant 168 and 0.5-2 part of lubricant. The regenerated polyolefin composition solves the problems of poor toughness, low strength and poor stability of the waste polyolefin material, has excellent toughness and strength, changes wastes into valuables and saves a cost.

The invention discloses a method for preparing a foaming product by utilizing regenerated polyethylene, and relates to polyethylene waste solid recycling. Three kinds of regenerated polyethylene are used as raw materials, a cable material, a Tetra Pak packaging material, a film spraying material and thermal expansion microspheres are used as foaming agents, and three kinds of cross-linked foaming polyethylene products are prepared through peroxide cross-linking, physical foaming and compression molding. A synchronous thermal analyzer, a scanning electron microscope, a pendulum impact testing machine, an electronic universal testing machine and the like are used for characterizing and analyzing the thermal properties, the morphology, the impact resistance and the tensile property of the prepared cross-linked foamed polyethylene product. Wherein the comprehensive performance of the cross-linked foaming product based on the regenerated polyethylene lamination material is optimal, and the cross-linked foaming product is expected to be used for producing various types of water products such as buoys and buoyancy balls. The method has important significance in developing a polyethylene recycling channel, promoting cyclic utilization of plastic products and realizing sustainable development of resources.