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PVC (polyvinyl chloride) plastic building template

A construction formwork and polyvinyl chloride technology, which is applied in the direction of construction, building structure, formwork/formwork components, etc., can solve the problems of increasing labor costs, affecting the construction period, poor heat resistance, light resistance, etc., and can improve the surface finish , Improve flatness, prevent cell collapse

Inactive Publication Date: 2014-03-26
江阴匡时建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is that the conventional plastic building formwork, especially the foamed polyvinyl chloride plastic building formwork, has poor heat resistance and light resistance, and the plastic building formwork added with hollow glass beads needs to be troweled twice, affecting The construction period will increase the labor cost

Method used

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  • PVC (polyvinyl chloride) plastic building template
  • PVC (polyvinyl chloride) plastic building template

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0044] The present invention is a polyvinyl chloride plastic building formwork, and its raw material composition and mass parts in Examples 1-6 are shown in Table 1.

[0045] Table 1:

[0046]

[0047] Among embodiments 1-6, owing to adopting hollow glass microsphere and hollow ceramic micropowder to mix and use to fill PVC and make building formwork, pouring object surface is smooth and attractive in appearance, have surpassed the technical requirement of existing fair-faced concrete formwork, have eliminated concrete surface two Compared with the corresponding PVC building formwork filled with hollow glass micropowder without hollow ceramic micropowder filling, it can shorten the construction period by more than 30%.

Embodiment 2

[0048] In Example 2, anatase titanium dioxide was added to increase the whiteness of the building formwork, while improving the aging resistance and heat absorption of the building formwork; in Examples 3 to 6, PVC was made of recycled PVC and new PVC materials It is mixed as the main raw material, and rutile titanium dioxide is added to the raw material formula at the same time, and the resulting building formwork still has good whiteness. Compared with anatase titanium dioxide, rutile titanium dioxide can improve the ultraviolet light absorption and shielding performance of building templates, and improve the aging resistance of building templates.

Embodiment 4

[0049] The recycled PVC material in Example 4 and Example 6 is hard PVC recycled material, and the recycled PVC material in Example 5 is soft PVC recycled material. When using soft PVC reclaimed materials, the amount added should not exceed 20% of the total weight of PVC, otherwise it will affect the hardness of the finished product. If hard PVC reclaimed materials are used, the added amount can even reach about 85% of the total weight of PVC. , thus more effectively reducing the manufacturing cost of PVC building formwork.

[0050] In Examples 4 to 6, PP and / or PE plastic particles were also added as modified resins to overcome the disadvantage of poor PVC processing fluidity and reduce its brittle-ductile transition temperature to below -10°C, so that the building formwork can withstand Use in low temperature conditions in winter. The impact strength of the simply supported beam of the corresponding product reaches above 17.5KJ / m.

[0051] In Examples 3 to 6, the heavy cal...

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Abstract

The invention relates to a PVC (polyvinyl chloride) plastic building template which comprises raw materials as follows: PVC, foaming agents, foaming regulators, wetting agents, plasticizers, stabilizers, lubricating agents, anti-impact modifiers, processing auxiliaries, reinforced fiber, hollowed glass beads, hollowed ceramic micro powder, titanium dioxide, modified resin, filling agents and the like, wherein PVC can consist of a brand new PVC material and a PVC recovered material; and the modified resin can be at least one of PP (polypropylene) and PE (polyethylene) plastic particles. The hollowed ceramic micro powder with a small particle size and the hollowed glass beads with large particle sizes are mixed for use, the flatness of the surface of the building template is remarkably improved, the secondary plastering engineering is omitted, the demolding effect is good, the mounting is convenient, time and labor are saved, and the density of the building template is not remarkably increased; the heat absorptivity of the building template is reduced and the heat resistance of the building template is improved from the angle of color design; and even if the raw materials are doped with the PVC recovered material, a light-color building template even a white building template with less heat absorption can be manufactured.

Description

technical field [0001] The invention relates to the field of building construction templates, in particular to a polyvinyl chloride plastic building template. Background technique [0002] Building formwork is an important tool in the construction of concrete structures. In cast-in-place concrete structure engineering, formwork engineering generally accounts for 20%-30% of the cost of concrete structure engineering, 30%-40% of engineering labor costs, and about 50% of the construction period. Formwork technology directly affects the quality, cost and benefit of engineering construction, so it is an important content to promote the progress of my country's construction technology. [0003] Among the building formwork currently used in the market, wooden formwork, steel formwork and plastic formwork are common. Compared with the first two types, the market prospect of plastic building templates is very promising. Its advantages are: ① It can save a lot of wood; ② It has adva...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/06C08L23/12C08L71/08C08L97/02C08K13/06C08K9/00C08K7/14C08K3/26C08K3/34C08K3/36C08K7/22C08K7/28C08K3/22C08K5/098C08J9/10E04G9/05
Inventor 夏元良
Owner 江阴匡时建材有限公司
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