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Thermoplastic composite material for hollow building templates and manufacture method thereof and application thereof

A technology of composite materials and building templates, which is applied in building construction, on-site preparation of building components, construction, etc., can solve the problems of large plate extrusion and easy warping of products, and achieve light weight, long-term weather resistance, Guaranteed long-term application effect

Inactive Publication Date: 2013-06-19
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

The boards for construction are not involved. The extruded boards are easy to warp due to the addition of glass fibers. At the same time, because of the large extrusion volume of the extruded boards, there are special requirements for equipment and processes.

Method used

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  • Thermoplastic composite material for hollow building templates and manufacture method thereof and application thereof
  • Thermoplastic composite material for hollow building templates and manufacture method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0037] (1) Weigh the material according to the components and proportioning ratio provided in Table 1;

[0038] (2) Mix evenly in a high-speed mixer, put it in a high-speed mixer and mix for 3 minutes

[0039] (3) The composition is obtained after extrusion in a twin-screw extruder. The barrel temperature of the extruder is 180-230°C. The extrusion temperature of each stage is set at 200°C-205°C-210°C-215°C-215°C-215°C-225°C.

[0040] (4) Extruded hollow building formwork, through 9 processes of thermoplastic composite material melting, extrusion molding products, vacuum cooling and shaping, primary traction, heating stress relief, secondary traction, cutting, stacking, packaging, etc. requested product.

[0041] The material properties of the product are tested according to GB standards. The test results are shown in Table 2.

[0042] Components and proportioning of table 1 embodiment 1-4 (following examples are all by weight percentage)

[0043]

[0044] The perform...

Embodiment 5

[0047] (1) Weigh 20 copolymerized polypropylenes with a melt index of 2 to 5 g / 10min, 50 alkali-free long glass fibers, 10 inorganic filler wollastonite, 9.5 toughening agent nitrile rubber, and compatibilizer maleic anhydride in parts by weight Grafted polypropylene 10, 0.1 coupling agent KH550, 0.05 antioxidant 1010, 0.05 antioxidant 618, light stabilizer 3346 and light stabilizer 3853S mixed in a weight ratio of 3:4 light stabilizer 0.4;

[0048] (2) Mix evenly in a high-speed mixer, put into a high-speed mixer and mix for 5 minutes;

[0049] (3) The composition is obtained after extrusion in a twin-screw extruder. The barrel temperature of the extruder is 180-230°C. The extrusion temperature of each section is set at 200°C-205°C-210°C-215°C-215°C-215°C-225°C;

[0050] (4) Extruded hollow building formwork, through 9 processes of thermoplastic composite material melting, extrusion molding products, vacuum cooling and shaping, primary traction, heating stress relief, secon...

Embodiment 6

[0052] (1) Weigh 25 homopolypropylenes with a melt index of 2 to 5 g / 10min, 25 copolymerized polypropylenes with a melt index of 1 to 3 g / 10min, 30 alkali-free chopped glass fibers, 5 wollastonite inorganic fillers, and Toughener ethylene-acrylate copolymer 7, compatibilizer maleic anhydride grafted polypropylene 6.5, coupling agent 0.5, 0.2 antioxidant 1010, 0.3 antioxidant 168, light stabilizer 3346 and light stabilizer 3853S by weight 3:4 mixed light stabilizer 0.5;

[0053] (2) Mix evenly in a high-speed mixer, put into a high-speed mixer and mix for 5 minutes;

[0054] (3) The composition is obtained after extrusion in a twin-screw extruder. The barrel temperature of the extruder is 180-230°C. The extrusion temperature of each section is set at 200°C-205°C-210°C-215°C-215°C-215°C-225°C;

[0055] (4) Extruded hollow building formwork, through 9 processes of thermoplastic composite material melting, extrusion molding products, vacuum cooling and shaping, primary traction, ...

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Abstract

The invention relates to a thermoplastic composite material for hollow building templates and a manufacture method thereof and application thereof. By weight, 20-55 parts of polypropylene, 30-50 parts of glass fiber, 5-10 parts of inorganic filler, 5-10 parts of flexibilizer, 5-10 parts of compatilizer, 0.1-0.5 part of coupling agents, 0.1-0.3 part of antioxidant and 0.2-0.3 part of light stabilizing agents are mixed for 3-5 minutes in a high-speed mixer, and extruded from a double-screw extruder to form the thermoplastic composite material. The thermoplastic composite material is smelted, extrude-molded, vacuum-cooling-molded, primarily dragged, heated to eliminate stress, secondarily dragged and cut into the hollow building templates meeting requirements. Compared with the prior art, the thermoplastic composite material has the advantages of being high in strength, roughness and size stability, and the like.

Description

technical field [0001] The invention belongs to the technical field of macromolecules and relates to a building field, including high-strength and high-toughness thermoplastic composite materials used in civil buildings, bridge road buildings, railway buildings, industrial buildings, etc., and their application as building templates. Background technique [0002] Building formwork is an important tool for concrete structure engineering construction. In cast-in-place concrete structure engineering, formwork engineering generally accounts for 20% to 30% of the cost of concrete structure engineering, 30% to 40% of engineering labor, and 50% of construction period. about. 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] At present, the most widely used construction formwork is to use wood formwork and steel formwork. Because wood...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L51/06C08K13/04C08K7/14C08K5/544C08K3/34E04G9/05
Inventor 廖周雄颜景峰彭丽梅刘俐
Owner 上海铂砾耐材料科技有限公司
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