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Heatproof bisphenol A type plastic packaging bag, and preparation method thereof
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A technology for packaging bags and plastics, applied in the field of packaging bags, can solve problems such as toxicity, poor thermal stability, human harm, etc., and achieve the effects of improving surface activity, thermal stability and mechanical properties.
Inactive Publication Date: 2019-01-22
安徽省天乐塑业有限公司
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There is also a film made of polyvinyl chloride, polyvinyl chloride itself is non-toxic, but the additives added according to the use of the film are often harmful substances to the human body and have certain toxicity
Therefore, this type of film and plastic bags made of this film are not suitable for holding food; at present, most plastic bags have poor heat resistance and stability, and are prone to release toxic substances when exposed to high temperatures. Therefore, how to improve the durability of plastic packaging bags Thermal temperature is the focus of current research
Method used
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Embodiment 1
[0016] A heat-resistant bisphenol A plastic packaging bag, which is made up of the following raw materials in parts by weight:
[0019] A preparation method for a heat-resistant bisphenol A type plastic packaging bag, comprising the following steps:
[0020] (1) Take microcrystalline paraffin, add it to toluene which is 4 times its weight, stir evenly, add bisphenol A, increase the temperature to 50°C, keep it warm and stir for 20 minutes, and obtain a toluene solution;
[0021] (2) Get tert-butyl p-diphenol, join in the dehydrated alcohol of its weight 3 times, stir evenly, add phosphorous acid, raise temperature to be 90 ℃, add silicon micropowder, insulate and stir for 2...
Embodiment 2
[0025] A heat-resistant bisphenol A plastic packaging bag, which is made up of the following raw materials in parts by weight:
[0027] Described heat-resistant stabilizer is zincstearate.
[0028] A preparation method for a heat-resistant bisphenol A type plastic packaging bag, comprising the following steps:
[0029] (1) Take microcrystalline paraffin, add it to toluene which is 7 times its weight, stir evenly, add bisphenol A, raise the temperature to 55° C., keep warm and stir for 30 minutes to obtain a toluene solution;
[0030] (2) Get tert-butyl p-diphenol, join in the dehydrated alcohol of its weight 5 times, stir evenly, add phosphorous acid, raise temperature to be 95 ℃, add silicon micropowder, insulate and stir for 3 hours, dist...
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Abstract
The invention discloses a heatproof bisphenol A type plastic packaging bag. The heatproof bisphenol A type plastic packaging bag is composed of, by weight, 3 to 4 parts of phosphorous acid, 120 to 150parts of high densitypolyethylene, 0.7 to 1 part of tert-butylhydroquinone, 1 to 2 parts of bisphenol A, 1 to 2 parts of a heat resistant stabilizing agent, 2 to 3 parts of glyceryl tristearate, 10to 17 parts of silicon micropowder, 4 to 6 parts of microcrystalline paraffin, and 0.8 to 1 part of lauryl dimethyl amine oxide. According to the preparation method, bisphenol A is adopted for processing of microcrystalline paraffin, and then phosphorous acid and ethanol are taken as raw materials for blending esterification, in esterification process, silicon micropowder is added, so that the surface activity of silicon micropowder is improved, and then blending with a toluene solution of the bisphenol A processed microcrystalline paraffin is carried out so as to obtain the bisphenol A modified filling material. The preparation method is capable of improving finished product heat stability and mechanical properties effectively.
Description
technical field [0001] The invention belongs to the field of packaging bags, and in particular relates to a heat-resistant bisphenol A plastic packaging bag and a preparation method thereof. Background technique [0002] Plastic packaging bag is a kind of packaging bag that uses plastic as raw material to produce various supplies in daily life. It is widely used in daily life and industrial production, but the convenience of this moment brings long-term harm. Commonly used plastic packaging bags are mostly made of polyethylene film, which is non-toxic, so it can be used to hold food. There is also a kind of film made of polyvinyl chloride, polyvinyl chloride itself is non-toxic, but the additives added according to the purposes of the film are often harmful substances to the human body and have certain toxicity. Therefore, this type of film and plastic bags made of this film are not suitable for holding food; at present, most plastic bags have poor heat resistance and stabi...
Claims
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Application Information
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