Sunshine-resistant and ageing-resistant modified plastic and preparation method thereof

A production method and anti-aging technology are applied in the field of plastic modification to achieve the effects of improving tensile strength and impact strength, high light transmittance, and improving service life and heat resistance.

Inactive Publication Date: 2015-06-24
WUHU ZHONGLI PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Our country has a vast territory and a complex climate. The use of plastic greenhouses for vegetable cultivation has played a special and important role in alleviating the contradiction between supply and demand of vegetables in the off-season. It has significant social benefits and huge economic benefits. Special plastic greenhouses for agricultural production and construction It is required that its light transmittance, heat preservation, tensile strength and aging resistance are superior to ordinary agricultural films. The existing technology cannot meet these requirements, and traditional plastics need to be modified to obtain modified plastics.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The sunlight-resistant and anti-aging modified plastic is characterized in that it is made of the following raw materials in parts by weight: polystyrene 38, polyvinyl chloride 62, nano-tin antimony oxide 5, nano-titanium dioxide 1, polyethylene Diol 200 2, aluminate 2, cadmium sulfate 0.3, polyoxyethylene castor oil 1.8, bromotriazine 0.1, lead stearate 0.6, absolute ethanol amount.

[0014] The preparation method comprises the following steps:

[0015] (1) Calcinate nano-tin antimony oxide and nano-titanium dioxide at 635-815°C for 30-50 minutes, cool them into a three-necked flask, add absolute ethanol and aluminate, stir evenly, heat and reflux for 4-5 hours, and centrifuge Separated, washed 2-3 times with absolute ethanol, and dried under vacuum at 80°C;

[0016] (2) Add polyethylene glycol 200 and lead stearate to the above products and stir to mix evenly to obtain a mixed powder;

[0017] (3) Add polystyrene and polyvinyl chloride to the high-speed mixing and d...

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Abstract

The invention discloses sunshine-resistant and ageing-resistant modified plastic, which is prepared from the following raw materials in parts by weight: 35-45 parts of polystyrene, 55-65 parts of polyvinyl chloride, 4.9-6.8 parts of nano antimony tin oxide, 1-2 parts of nanometer titanium dioxide, 2-4 parts of polyethylene glycol 200, 1-2 parts of aluminic acid ester, 0.2-0.4 part of cadmium sulfate, 1.1-2.3 parts of polyoxyethylated castor oil, 0.1-0.3 part of bromotriazine, 0.4-0.7 part of lead stearate and a proper amount of absolute ethyl alcohol. The method comprises the following steps: firstly, adding a nano material to a coupling agent, stirring, activating, grafting and mixing with polystyrene, polyvinyl chloride, bromotriazine, polyoxyethylated castor oil and the like evenly; and fusing, extruding and pelletizing through a twin-screw extruder. The sunshine resistance, the ageing-resistance, the tensile strength and the shock strength of the prepared plastic are significantly improved; the service life is certainly prolonged; and the heat resistance is also certainly improved.

Description

technical field [0001] The invention relates to the technical field of plastic modification, in particular to a sunlight-resistant and anti-aging modified plastic and a manufacturing method thereof. Background technique [0002] Our country has a vast territory and a complex climate. The use of plastic greenhouses for vegetable cultivation has played a special and important role in alleviating the contradiction between supply and demand of vegetables in the off-season. It has significant social benefits and huge economic benefits. Special plastic greenhouses for agricultural production and construction It is required that its light transmittance, heat preservation, tensile strength and aging resistance are superior to ordinary agricultural films. The existing technology cannot meet these requirements, and traditional plastics need to be modified to obtain modified plastics. Modified plastics refer to plastic products that are processed on the basis of general-purpose plastic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L25/06C08K13/06C08K9/00C08K9/04C08K3/22C08K3/30C08K5/3492C08K5/098
CPCC08K2003/2241C08L27/06C08K2201/011C08L2201/08C08L2203/16C08L2205/03
Inventor 项孝泓
Owner WUHU ZHONGLI PARTS
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