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Polymer section and preparation method thereof

A technology for polymers and profiles, applied in the field of profiles, achieves the effects of simple preparation process, high recyclability and cost reduction

Active Publication Date: 2012-04-18
河北泓之木环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above method can only be applied to waste agricultural film, greenhouse film, PVC scraps or PVC recycled materials, etc. It is not applicable to PU (polyurethane) materials or other PVC materials

Method used

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  • Polymer section and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In the present embodiment, the polymer profile is carried out according to the following steps:

[0020] ①Crush the recovered PU and PVC luggage leather waste into 3-8mm, and remove metal objects such as iron nails through magnetic separation to obtain the main material of the polymer profile; in the main material, the mass content of PU is > 0% and <100%;

[0021] ② Take 40 parts by weight of the main material of the polymer profile in step ①, then add 25 parts by weight of PVC resin, mix well in a strong mixer, then add 1.0 parts by weight of maleic anhydride, 1.0 parts by weight of EVA, stearin 1.5 parts by weight of acid and 1.5 parts by weight of liquid paraffin, continue to mix in an intensive mixer to obtain a uniform mixture;

[0022] ③Add the homogeneous mixture in step ② into the granulator, and granulate at 120°C to obtain granules of polymer profiles;

[0023] ④ Add the granules in step ③ into a twin-screw extruder, and extrude at 170°C to obtain a polymer...

Embodiment 2

[0031] ①Crush the recovered PU and PVC luggage leather waste into 4-8mm, and remove metal objects such as iron nails through magnetic separation to obtain the main material of the polymer profile; in the main material, the mass content of PU is > 0% and <100%;

[0032] ② Take 60 parts by weight of the main material of the polymer profile in step ①, then add 45 parts by weight of high-density polyethylene resin, mix well in a strong mixer, and then add 1.5 parts by weight of titanate and 2.0 parts by weight of EVA in sequence , 2.0 parts by weight of stearic acid and 2 parts by weight of liquid paraffin, continue to mix in a strong mixer to obtain a uniform mixture;

[0033] ③ Add the homogeneous mixture in step ② to a granulator, and granulate at 140°C to obtain granules of polymer profiles;

[0034] ④ Add the particles in step ③ to a twin-screw extruder, and extrude them at 180°C to obtain a polymer profile;

[0035] 5. Printing, embossing or pasting on the outer surface of...

Embodiment 3 Embodiment 5

[0037] The preparation steps are the same as in Example 2, and the parts by weight of each raw material are shown in Table 1.

[0038] The parts by weight of each raw material in the table 1 embodiment three-embodiment five

[0039]

[0040] Note: The PE resin mentioned in Table 1 is low density polyethylene resin, medium density polyethylene resin or high density polyethylene resin; the said PP is homopolymer polypropylene resin or copolymer polypropylene resin.

[0041] In summary, the present invention makes full use of the PU and PVC leather scraps produced in the production process of luggage manufacturing enterprises, not only solves the problem of environmental pollution, but also prepares polymer profiles that can be used in fields such as construction, packaging, transportation and decoration, It saves a lot of natural resources and is a green and environmentally friendly polymer profile.

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Abstract

The invention discloses a polymer section and a preparation method thereof. The polymer section is prepared by mixing the following raw materials in parts by weight: 40-85 parts of recovered PU (polyurethane) / PVC (polyvinyl chloride) bag leather waste granule, 10-55 parts of plastic resin, 1.0-1.5 parts of coupling agent, 1.2-2.0 parts of EVA (ethylene vinyl-acetate copolymer), 1.5-2.0 parts of stearic acid and 1.5-2.0 parts of lubricant. The preparation method of the polymer section comprises the following steps: pulverizing the recovered PU / PVC bag leather waste, adding the plastic resin, evenly mixing, sequentially adding the coupling agent, EVA, stearic acid and lubricant, evenly mixing, granulating and extruding. The polymer section disclosed by the invention not only has the advantages of favorable water resistance and strength of plastics, but also has the advantages of favorable processability, no toxicity and environmental protection of wood. The polymer section has natural tactile sensation of wood, can not be easily damaged by mold or termites, has the characteristics of high weatherability and high compression strength, and can be used in the fields of building materials, packaging, transportation, decoration and the like.

Description

technical field [0001] The invention relates to a profile, especially a polymer profile and a preparation method thereof. Background technique [0002] With the acceleration of my country's urbanization process, people's demand for various bags and PU and PVC leather products has increased, and at the same time, a large amount of industrial waste has been generated in the production areas of bags and PU and PVC leather products - PU and PVC leather corner waste . At present, these wastes can only be incinerated or stacked, and long-term stacking may spontaneously ignite, releasing a large amount of smoke and toxic gases, which has a bad impact on the environment and people's lives. [0003] The Chinese patent with the publication number 201010197081.0 discloses a method for processing plastic floor materials by using PVC waste. The method is as follows: firstly, the PVC waste is extruded and filtered through an extruder to remove impurities, and a plasticizer is added therei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L27/06C08L23/06C08L23/12C08L23/14C08L23/08C08K5/09B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 谷子林李兵
Owner 河北泓之木环保科技股份有限公司
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