A building formwork material

A technology of building formwork and glass fiber, which is applied in the field of new building formwork materials, can solve the problems of inconvenient construction and transportation, heavy weight, insufficient toughness, etc., achieve excellent mechanical properties and processing performance, facilitate transportation and construction, and reuse many times. Effect

Active Publication Date: 2016-01-20
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the steel formwork is strong and has many repetitions, it has high cost, heavy weight, narrow format, and many joints. It is inconvenient for construction and transportation, easy to rust, requires anti-corrosion treatment, and high maintenance costs; bamboo and wood formwork are light in weight and wide in format. , There are few seams, but its strength is relatively low, it is not waterproof, it is easy to mildew and rot, the number of repeated uses is small, and it consumes a lot of green resources
In order to solve these problems, there are also plastic formworks, which are light in weight, non-stick to concrete, and can be reused many times, but their disadvantages are poor rigidity and easy deformation; at the same time, the formwork assembled after direct injection molding also has insufficient toughness , the disadvantage of easy damage when working at heights
Patent CN1242462A discloses a reinforced foamed plastic formwork, which is a step forward in the previous plastic formwork technology, but the use of foaming agent has brought adverse effects on the production environment, and on the formwork obtained by extrusion and shaping, The lower wall is thicker and the specific gravity is larger

Method used

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  • A building formwork material
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 4

[0032] A preparation method of a novel building formwork material, comprising the following steps:

[0033] 50 parts by weight of polypropylene, 10 parts by weight of toughening agent EPDM, 45 parts by weight of E-glass fiber, 10 parts by weight of grafted maleic anhydride grafted polypropylene, 0.4 parts by weight of antioxidant DSTDP and lubrication 0.4 parts by weight of calcium stearate;

[0034] The polypropylene, toughening agent, graft, antioxidant and lubricant are weighed according to the proportion and then added to the high-speed mixer and mixed evenly. The mixed material is fed into the twin-screw extruder by a precisely metered feeder At the same time, glass fiber is added from the glass fiber inlet according to the above ratio, and is sheared and kneaded at high speed by twin-screw, extruded by machine head, drawn, air-cooled, pelletized, dried and packaged to obtain the new building formwork material .

Embodiment 5

[0036] A preparation method of a novel building formwork material, comprising the following steps:

[0037] 90 parts by weight of polyethylene, 1 part by weight of toughening agent ethylene-propylene copolymer, 5 parts by weight of C-glass fiber, 1 part by weight of grafted maleic anhydride grafted polyethylene, 1680.1 parts by weight of antioxidant and lubricant N.N 0.1 parts by weight of '-ethylene bis stearamide;

[0038] The polyethylene, toughener, graft, antioxidant and lubricant are weighed according to the proportion and then added to the high-speed mixer and mixed evenly. The mixed material is fed into the twin-screw extruder by a precisely metered feeder At the same time, glass fiber is added from the glass fiber inlet according to the above ratio, and is sheared and kneaded at high speed by twin-screw, extruded by machine head, drawn, air-cooled, pelletized, dried and packaged to obtain the new building formwork material .

Embodiment 6

[0040] A preparation method of a novel building formwork material, comprising the following steps:

[0041] 25 parts by weight of polypropylene, 50 parts by weight of polyethylene, 5 parts by weight of toughening agent ethylene-octene copolymer, 3 parts by weight of propylene-butene copolymer, 35 parts by weight of C-glass fiber, graft bismaleyl 7 parts by weight of imine, 10100.1 parts by weight of antioxidant, 1680.2 parts by weight of antioxidant and 0.2 parts by weight of lubricant calcium stearate, 0.15 parts by weight of N.N'-ethylene bis stearamide;

[0042] The polyolefin, toughener, graft, antioxidant and lubricant are weighed according to the proportion and then added to the high-speed mixer and mixed evenly. The mixed material is fed into the twin-screw extruder by a precisely metered feeder At the same time, glass fiber is added from the glass fiber inlet according to the above ratio, and is sheared and kneaded at high speed by twin-screw, extruded by machine head,...

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Abstract

The invention discloses a novel building template material, which comprises the following components in parts by weight: 50-90 parts of polyolefin, 1-10 parts of toughening agent, 5-45 parts of glass fiber, 1-10 parts of graft, 0.1-0.4 part of antioxidant and 0.1-0.4 part of lubricating agent. The glass fiber reinforced polyolefin material has favorable mechanical property and processability, can be manufactured into a plastic template through carrying out continuous extrusion molding by using an extruder and has multiple advantages of high strength and high tenacity under extremely thin wall thickness, low cost, light weight, good rigidity and tenacity balance, easy demolding, capability of recycling multiple times, changeable size, recyclability and the like. Compared with the template made of other materials, the novel building template material which has the same area as that of the template made of the other materials is thinner, lighter and convenient to transport and construct and has favorable application prospect.

Description

technical field [0001] The invention relates to the field of building construction templates, in particular to a novel building template material. Background technique [0002] The templates used in building construction are generally steel molds, wood molds, bamboo molds, and plastic molds. Although the steel formwork is strong and has many repetitions, it has high cost, heavy weight, narrow format, and many joints. It is inconvenient for construction and transportation, easy to rust, requires anti-corrosion treatment, and high maintenance costs; bamboo and wood formwork are light in weight and wide in format. , There are few seams, but its strength is relatively low, it is not waterproof, it is easy to mildew and rot, the number of repeated uses is small, and it consumes a lot of green resources. In order to solve these problems, there are also plastic formworks, which are light in weight, non-stick to concrete, and can be reused many times, but their disadvantages are po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/06C08L51/06C08L23/16C08L23/08C08L23/14C08K7/14C08K5/098
Inventor 杨桂生孙利明石允慧
Owner HEFEI GENIUS NEW MATERIALS
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