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Formula for polyolefin foaming building template and technology

A polyolefin foaming and building formwork technology, applied in the field of polymer materials, can solve the problems of variable product foaming density, low strength, unevenness, etc., to avoid insufficient processing, reduce density, and uniform foaming Effect

Inactive Publication Date: 2019-05-14
ANHUI SENTAI WPC GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide the formula and process for polyolefin foamed building templates, which can better solve the problems of poor toughness, low strength, variable shape and uneven foaming density of polyolefin foamed materials. , can be widely used in construction and other fields

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  • Formula for polyolefin foaming building template and technology
  • Formula for polyolefin foaming building template and technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The formula and process for polyolefin foamed building formwork, the formula contains the following raw material components in parts by weight: 30 parts of polyethylene, 30 parts of polypropylene, 15 parts of sawdust, 15 parts of chaff, maleic anhydride grafted polyphenylene 1 part of ethylene, 1 part of azobisisobutyronitrile, 0.25 part of zinc oxide, 0.25 part of phosphite antioxidant, 0.75 part of zinc stearate;

[0041] Process method comprises the following steps in turn:

[0042] (1) Mixing: mix the raw materials polyethylene, polypropylene, sawdust, chaff, maleic anhydride grafted polystyrene, and phosphite antioxidants required for polyolefin foam building formwork according to the formula. After high-speed stirring by the mixer, heat is generated by friction, and it is discharged into cold mixing after reaching the set process temperature of 110°C, and discharged after reaching the set process temperature of 40°C;

[0043] (2) Granulation: Add the material obtai...

Embodiment 2

[0052] The formula and process for polyolefin foamed building formwork, the formula contains the following raw material components in parts by weight: 40 parts of polyethylene, 50 parts of ethylene-propylene copolymer, 60 parts of bran shells, 60 parts of peanut shells, maleic anhydride-benzene 20 parts of ethylene block copolymer, 15 parts of trinitrosomethylene triamine, 1 part of zinc carbonate, 1 part of hindered phenolic antioxidant, 5 parts of magnesium stearate;

[0053] Process method comprises the following steps in turn:

[0054] (1) Mixing materials: The raw materials polyethylene, ethylene-propylene copolymer, bran shell, peanut shell, maleic anhydride-styrene block copolymer, hindered phenolic antioxidant, etc. Formula mixing, high-speed stirring by the mixer, frictional heat generation, discharge into cold mixing after reaching the set process temperature of 125°C, and discharge after reaching the set process temperature of 45°C;

[0055] (2) Granulation: Add th...

Embodiment 3

[0064] The formula and process for polyolefin foamed building formwork, the formula contains the following raw material components in parts by weight: 80 parts of polypropylene, 60 parts of peanut shells, 10 parts of maleic anhydride grafted polystyrene, 6 parts of azobisisobutyronitrile part, 0.75 part of aluminum oxide, 0.5 part of phosphite antioxidant, 3 parts of magnesium stearate;

[0065] Process method comprises the following steps in turn:

[0066] (1) Mixing: Mix the raw materials polypropylene, peanut shells, maleic anhydride grafted polystyrene, and phosphite antioxidants required for polyolefin foam building templates according to the formula, and mix them at high speed with a mixer. Heat generated by friction, discharge into the cold mix after reaching the set process temperature of 115°C, and discharge after reaching the set process temperature of 43°C;

[0067] (2) Granulation: Add the material obtained in step (1) into the hopper of the granulator, and carry ...

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Abstract

The invention discloses a formula for a polyolefin foaming building template and a technology and relates to the technical field of high polymer materials. The technology comprises the steps of mixing, granulation, drying, stirring, extrusion, cooling, shaping and cutting. A side feed manner is adopted, so that the product performance of the polyolefin foaming building template is improved; the problems of poor toughness, low strength, high possibility of contraction deformation and nonuniform product foaming density of a polyolefin foaming material are solved; a prepared product can be widelyapplied the field of buildings and the like; a high infrared radiation foaming oven is adopted for foaming of an extruded plate; the product quality and production efficiency are improved; and the formula and the technology have good market prospects.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a formula and process for polyolefin foamed building templates. Background technique [0002] Polymer foam material refers to a microporous material based on polymer (plastic, rubber, elastomer or natural polymer material) with numerous bubbles inside, and can also be regarded as a composite material filled with gas. There are many kinds of polymer foam materials, such as polyolefin foam, polyvinyl chloride (PVC) foam, phenolic foam, epoxy resin foam and other thermoplastic and thermosetting foams, as well as nitrile rubber foam, thermoplastic elastomer foam and hair foam. Natural polymer foaming materials such as foaming starch and foaming plant fiber. Polyolefin foam building formwork is an energy-saving and green environmental protection product, and it is another new replacement product after wood formwork and bamboo-wood glued formwork. Polymer foam materials can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L97/02C08L51/00C08J9/10C08L99/00C08L23/16C08L53/00C08K5/524C08K5/098C08K5/13B29B7/00B29B13/06B29B9/00B29C48/07
Inventor 唐道远唐圣卫
Owner ANHUI SENTAI WPC GRP CO LTD
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