In-mould forming mould plate as well as preparation method and uses thereof

An in-mold forming and formwork technology, which is applied in the field preparation and construction of formwork/formwork components and building components, can solve the problems of inability to further improve mechanical strength and low cost, and achieve high construction efficiency, low cost, Lightweight effect

Inactive Publication Date: 2013-09-11
上海铂砾耐材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the injection molding method, the production efficiency is high, the cost is low, and the strength is better after reinforcement through the ribs. Although the product strength of this method is higher than that of ordinary plastic direct injection molding, the injection molding process of glass fiber reinforced plastics due to the product There is no skeleton in the middle for support, and the mechanical strength cannot be further improved

Method used

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  • In-mould forming mould plate as well as preparation method and uses thereof
  • In-mould forming mould plate as well as preparation method and uses thereof
  • In-mould forming mould plate as well as preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Injection molded formwork is used for pouring concrete in building construction projects. The working surface of the formwork is flat and the back is provided with reinforcing ribs.

[0057] The multi-layer glass fiber web of pre-impregnated polypropylene uses the multi-layer fiber web of surface pre-impregnated polypropylene produced by Liaoning Jieshijie New Material Co., Ltd., the thickness is 0.4mm, and the glass fiber content is 30% of the overall weight.

[0058] The preparation process is as follows, see Figure 1-3 The template forming process shown:

[0059] (1) Cut the multi-layer fiber web 2 with surface pre-impregnated polypropylene to the overall size of the template, and heat it in an oven for 10 minutes at a temperature of 75°C;

[0060] (2) The template mold includes a concave mold 1 and a convex mold 3. Put the heated multi-layer glass fiber mesh 2 pre-impregnated with polypropylene into the concave mold 1, and cling to the cavity 4 of the injection mo...

Embodiment 2

[0067] The working surface of the product in the injection mold is flat, there is no rib on the back, and the product is processed into a cuboid flat plate. Formwork is used to pour concrete in building construction works.

[0068] The multi-layer glass fiber mesh with surface pre-impregnated polypropylene uses the multi-layer glass fiber mesh with surface pre-impregnated polypropylene produced by Liaoning Jieshijie New Material Co., Ltd., the thickness is 0.2mm, and the glass fiber content is 50% of the overall weight.

[0069] (1) Cut the multi-layer glass fiber mesh with surface pre-impregnated polypropylene to the product size, and heat it in the oven for 20 minutes, and the oven temperature is 80°C;

[0070] (2) Put the heated multi-layer glass fiber mesh pre-impregnated with polypropylene into the mold cavity, close to the cavity of the injection mold, and the exhaust blocks are evenly distributed on the cavity, when the surface is pre-impregnated with polypropylene Whe...

Embodiment 3

[0076] The front of the product in the injection mold is arc-shaped, and the back has no reinforcing ribs. The formwork is used for pouring concrete in building construction projects.

[0077] The multi-layer glass fiber mesh with surface pre-impregnated polypropylene uses the multi-layer glass fiber mesh with surface pre-impregnated polypropylene produced by Liaoning Jieshijie New Material Co., Ltd., the thickness is 0.3mm, and the glass fiber content is 50% of the overall weight.

[0078] (1) Cut the multi-layer glass fiber mesh with surface pre-impregnated polypropylene to the product size, and heat it in an oven for 15 minutes at a temperature of 85°C;

[0079] (2) Put the heated multi-layer glass fiber mesh pre-impregnated with polypropylene into the mold cavity, close to the cavity of the injection mold, and the exhaust blocks are evenly distributed on the cavity, when the surface is pre-impregnated with polypropylene When the multi-layer glass fiber mesh sticks to the m...

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Abstract

The invention discloses an in-mould forming mould plate. The in-mould forming mould plate is prepared from the following components in parts by weight: 20-40 parts of multi-glass fiber mesh of presoaked polypropylene and 40-80 parts of glass fiber reinforced polypropylene material. The invention further discloses a preparation method and uses of the in-mould forming mould plate. With the adoption of a reinforced plastic mould plate of the multi-glass fiber mesh of presoaked polypropylene, in-mould injection moulding is performed so as to ensure that the glass fiber mesh is sufficiently wrapped by a polypropylene base body; compared with the existing plastic mould plate, the tensile strength, the hardness and the rigidity of the in-mould forming mould plate are high; and the in-mould forming mould plate is not easy to deform and damage during the casting process, and has the characteristic of being low in cost, light in weight, good in mechanical property and long in service life.

Description

technical field [0001] The invention relates to the technical field of building templates, in particular to an in-mold forming template and its preparation method and application. Background technique [0002] At present, most of the building formwork used in the construction process are wood formwork and steel formwork, but both are non-renewable resources. Wooden formwork is light in weight, wide in width, and has few seams, but its strength is relatively low, it is not waterproof, easy to mildew and rot, and it is rarely reused, consuming a lot of green resources, and it is troublesome to use a release agent when using the wood formwork . 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 in the later period. Therefore, wooden formwork and steel formwork have been ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/04C08K7/14B29C45/14E04G9/05
Inventor 韩可杰颜景峰廖周雄刘俐颜克军
Owner 上海铂砾耐材料科技有限公司
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