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Polyvinyl chloride plastic particle and preparation method thereof

A technology of plastic granules and polyvinyl chloride, which is applied in the field of polyvinyl chloride plastic granules and its preparation, can solve the problems of serious pollution of waste plastics, and no specific recycling method for waste plastics, so as to avoid pollution, save usage, and be practical strong effect

Inactive Publication Date: 2018-05-22
上海亚特塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no specific recycling method for some waste plastics, resulting in increasingly serious pollution of waste plastics, which needs to be improved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0032] The polyvinyl chloride plastic granules described in this embodiment are composed of the following components by weight: 85 parts of waste polyvinyl chloride, 25 parts of calcium powder, 3 parts of antioxidant, 3 parts of plasticizer, 3 parts of catalyst, and 15 parts of coloring agent , 35 parts of dyeing agent, 4 parts of color stabilizer.

[0033] The processing steps of the present embodiment are as follows:

[0034] 1. Select waste polyvinyl chloride, and use high-pressure gas to clean the surface four times;

[0035] 2. Use a pulverizer to pulverize and grind the cleaned waste polyvinyl chloride, and then sieve it;

[0036] 3. Mix the screened waste polyvinyl chloride with calcium powder, antioxidant, plasticizer and catalyst evenly, then send it into the box of the circulating granulator, and heat it through hot air circulation. The heating temperature is 150°C. Melting under the action of stirring shaft (speed 680 rpm);

[0037] 4. Send the mixed material in ...

Embodiment 3

[0043] The polyvinyl chloride plastic granules described in this embodiment are composed of the following components in parts by weight: 88 parts of waste polyvinyl chloride, 12 parts of calcium powder, 3 parts of antioxidant, 3 parts of plasticizer, 3 parts of catalyst, and 15 parts of coloring agent , 35 parts of dyeing agent, 5 parts of color stabilizer.

[0044] The processing steps of the present embodiment are as follows:

[0045] 1. Select waste polyvinyl chloride, and use high-pressure gas to clean the surface three times;

[0046] 2. Use a pulverizer to pulverize and grind the cleaned waste polyvinyl chloride, and then sieve it;

[0047] 3. Mix the screened waste polyvinyl chloride with calcium powder, antioxidant, plasticizer and catalyst evenly, then send it into the box of the circulating granulator, and heat it through hot air circulation. The heating temperature is 200°C. Melting under the action of stirring shaft (speed 600 rpm);

[0048] 4. Send the mixed ma...

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Abstract

The invention relates to a polyvinyl chloride plastic particle and a preparation method thereof, and relates to the technical field of polyvinyl chloride processing and preparation. The polyvinyl chloride plastic particle is prepared from the following ingredients in parts by weight: 80 to 90 parts of waste and old polyvinyl chloride, 10 to 30 parts of calcium powder, 1 to 5 parts of antioxidant,1 to 5 parts of plasticizer, 1 to 5 parts of catalyst, 10 to 20 parts of coloring agent, 20 to 40 parts of dyeing agent and 1 to 5 parts of color stabilizing agent. Waste and old plastics can be effectively recovered and reused; the environmental pollution is avoided; meanwhile, the consumption of dyeing agents can be reduced; the practicability is higher.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride processing and preparation, in particular to a polyvinyl chloride plastic granule and a preparation method thereof. Background technique [0002] Polyvinyl chloride is a monomer of vinyl chloride, which is polymerized by peroxides, azo compounds and other initiators; or under the action of light and heat according to the mechanism of free radical polymerization. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC is a white powder with an amorphous structure, the degree of branching is small, the relative density is about 1.4, the glass transition temperature is 77~90°C, it begins to decompose at about 170°C, and it has poor stability to light and heat. When exposed to sunlight, it will decompose to produce hydrogen chloride, and further autocatalyze the decomposition, causing discoloration and rapid decline in physical a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K3/26
CPCC08K3/26C08K13/02C08K2003/265C08L27/06
Inventor 黄振芝黄舒文何华陈静
Owner 上海亚特塑料制品有限公司
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