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Preparation method of toughened PVC sectional material with high weather resistance

A technology with high weather resistance and weather resistance, applied in the field of composite materials, can solve problems such as poor affinity, defects, crystal cross-sections of unevenly dispersed materials, etc.

Inactive Publication Date: 2016-11-09
江苏丰实智能门窗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface of nano-calcium carbonate particles without surface modification treatment is hydrophilic and oleophobic, and has strong polarity. It generally has poor affinity with organic polymers, and it is easy to cause uneven dispersion in polymers, resulting in two Material crystal cross-section defects

Method used

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  • Preparation method of toughened PVC sectional material with high weather resistance
  • Preparation method of toughened PVC sectional material with high weather resistance
  • Preparation method of toughened PVC sectional material with high weather resistance

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preparation example Construction

[0031] The invention provides a method for preparing a high weather resistance toughened PVC profile, comprising the following steps:

[0032] (1) Adding materials: add wood powder to the hot mixing pot according to the mass ratio, and then add PVC resin, impact modifier, processing aid, stabilizer, filler, PE wax, fatty acid ester, calcium stearate, The rotation of the single screw starts to compact the material;

[0033] (2) Melting: The material is conveyed to the direction of the machine head, heated, and when the temperature of the mixed raw material reaches 120-190°C, the material is plasticized and further compacted;

[0034] (3) Melt delivery: through the screw, the fully plasticized molten material is extruded into the machine head at a constant pressure and temperature;

[0035] (4) Forming: Through the splitter plate and the die with a certain cross-sectional shape and size, it becomes a high-temperature continuum with a cross-section similar to the shape of the di...

Embodiment 1

[0098] The preparation process of high weather resistance toughened PVC profiles is as follows: (PVC polymerization degree is 1000; wood flour particle size is 45-600 μm)

[0099] (1) Feeding: add wood flour (moisture content of wood flour is 1%) to the hot mixing pot according to the mass ratio, and then add PVC resin, impact modifier, processing aid, stabilizer, filler, PE wax, fat Ester, calcium stearate, single-screw rotation, stirring at a speed of 1200 rpm to start compacting the material;

[0100] (2) Melting: The material is conveyed to the direction of the machine head and heated. When the temperature of the mixed raw material reaches 150°C, the material is plasticized for 15 minutes and further compacted;

[0101] (3) Melt delivery: through the screw, the fully plasticized molten material is extruded into the machine head at a constant pressure and temperature;

[0102] (4) Forming: through the splitter plate and the die with a certain cross-sectional shape and size...

Embodiment 2

[0112] The preparation process of high weather resistance toughened PVC profiles is as follows: (PVC polymerization degree is 1000; wood flour particle size is 45-600 μm)

[0113] (1) Feeding: add wood flour (moisture content of wood flour is 1%) to the hot mixing pot according to the mass ratio, and then add PVC resin, impact modifier, processing aid, stabilizer, filler, PE wax, fat Acetate, calcium stearate, single screw rotation, stirring at a speed of 1200 rpm, and the material starts to be compacted;

[0114] (2) Melting: The material is conveyed to the direction of the machine head and heated. When the temperature of the mixed raw material reaches 150°C, the material is plasticized for 15 minutes and further compacted;

[0115] (3) Melt delivery: through the screw, the fully plasticized molten material is extruded into the machine head at a constant pressure and temperature;

[0116] (4) Forming: Through the splitter plate and the die with a certain cross-sectional shap...

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Abstract

The invention provides a preparation method of a toughened PVC sectional material with high weather resistance. The preparation method comprises the following steps: (1) adding materials, namely adding wood powder into a heat mixing pot according to mass ratio, then respectively adding PVC resin, an impact resistance modifier, a processing auxiliary, a stabilizer, a filler, PE wax, fatty acid ester and calcium stearate, and starting to compact the material by rotating a single screw; (2) melting, namely conveying the material to the nose direction, heating, plasticizing the materials when temperature of mixed raw materials reaches 120-190 DEG C, and further compacting; (3) conveying melt, namely quantitatively extruding the completely plasticized molten material into a nose at constant pressure and constant temperature by virtue of a screw; and (4) moulding, namely by virtue of a flow dividing plate and a die with a certain cross section shape and size, cooling, setting, covering a film and cutting, packaging after passing inspection, and warehousing, wherein the filler is octabenzyl octasilsesquioxane modified acrylic acid nano calcium carbonate containing stearic acid and p-hydroxybenzoic acid.

Description

technical field [0001] The invention relates to the technical field of composite materials, and more specifically, the invention provides a method for preparing a high weather resistance toughened PVC profile. Background technique [0002] Polyvinyl chloride (polyvinyl Chloride referred to as PVC) is one of the most commonly used plastics. Because of its good mechanical strength, good chemical corrosion resistance, excellent electrical insulation and other advantages, it is widely used in various aspects such as agriculture and industry. The application and development of polyvinyl chloride products are early, the use range is wide, and there are many types of products, which occupy a large proportion of plastic products. At present, rigid polyvinyl chloride (PVC) is the most widely used in chemical building materials, especially the demand for pipes, plates and profiles is very large. PVC building materials can not only replace traditional steel, wood and other materials ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08L23/06C08L51/04C08K13/06C08K9/06C08K9/04C08K3/26C08K5/098B29C47/92B29C47/38B29C48/395B29C48/92
CPCC08L27/06B29C48/397B29C48/92B29C2948/9259C08K2201/003C08K2201/011C08L2205/025C08L2205/035C08L2205/16C08L97/02C08L23/06C08L51/04C08K13/06C08K9/06C08K9/04C08K2003/265C08K5/098
Inventor 卢建兵
Owner 江苏丰实智能门窗科技有限公司