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High-temperature resistant plastic bag and preparation method thereof
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A technology for plastic bags and high temperature resistance, which is applied in the field of plastic products and can solve the problems of poor high temperature resistance, melting and bonding, etc.
Inactive Publication Date: 2016-03-16
WUHU PINTONG PLASTIC TECH
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Abstract
Description
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Problems solved by technology
The plastic bags used in the existing market have poor high temperature resistance, and some harmful substances will be released in high temperature environments, especially when using them to load some items with high temperature, the plastic bags will melt and stick to the items
Method used
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preparation example Construction
[0012] The present invention provides a kind of preparation method of high temperature resistant plastic bag, wherein, described preparation method comprises:
[0014] (2) the masterbatch M is obtained plastic film through blown film process, carries out cutting film bag making afterwards, obtains described plastic bag, wherein,
[0015] Relative to 100 parts by weight of polyethylene, the content of propylene oxide is 50-75 parts by weight, the content of ethylene oxide is 45-65 parts by weight, and the content of diethanolamine is 15-35 parts by weight , the content of the foaming agent is 10-20 parts by weight, and the content of the catalyst is 1-8 parts by weight.
[0016] Through the synergistic effect of the above raw materials, the prepared plastic bag has strong high temperature resistance. At ...
Embodiment 1
[0022] After uniformly mixing polyethylene, propylene oxide, ethylene oxide, diethanolamine, calciumcarbonate, and dibutyltin dilaurate in a weight ratio of 100:55:50:20:12:3, extrusiongranulation , to obtain a master batch M; the master batch M is subjected to a film blowing process to obtain a plastic film, and then cut into a bag to obtain the plastic bag A1. In the above preparation method, the weight-average molecular weight of polyethylene is 30000. In the film blowing process, the speed of film blowing is 10 cm / min, and the temperature during film blowing is controlled at 80°C.
Embodiment 2
[0024] After uniformly mixing polyethylene, propylene oxide, ethylene oxide, diethanolamine, magnesiumcarbonate, and stannous octoate according to the weight ratio of 100:60:55:25:15:6, extruding and granulating to obtain the parent Granule M; the master batch M is blown to obtain a plastic film, and then cut into a bag to obtain the plastic bag A2. In the above preparation method, the weight-average molecular weight of polyethylene is 50,000. In the film blowing process, the film blowing speed is 15 cm / min, and the temperature during film blowing is controlled at 120° C.
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PUM
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Abstract
The invention discloses a high-temperature resistant plastic bag and a preparation method thereof. The preparation method comprises the following steps: mixing polyethylene, propylene epoxide, ethyleneoxide, diethanol amine, a foaming agent and a catalyst evenly, extruding and pelletizing the mixture to obtain master batches M; carrying out a film blowing procedure on the master batches M to obtain a plastic film; and carrying out film slitting and bag making to obtain the plastic bag, wherein the plastic bag is prepared from the following raw materials in parts by weight: 50-75 parts of propylene epoxide, 45-65 parts of ethyleneoxide, 15-35 parts of diethanol amine, 10-20 parts of the foaming agent and 1-8 parts of the catalyst in comparison with 100 parts by weight of polyethylene. The plastic bag prepared by the preparation method can tolerate a relatively high temperature, and does not release a harmful substance or generate a peculiar smell at high temperature.
Description
technical field [0001] The invention relates to plastic products, in particular to a high-temperature-resistant plastic bag and a preparation method thereof. Background technique [0002] Plastic bags are indispensable items in people's daily life. They are often used to hold other items. They are widely used because of their cheapness, light weight, large capacity, and easy storage. The plastic bags used in the existing market have poor high temperature resistance, and some harmful substances will be released under high temperature environment. Especially when some articles with higher temperature are loaded with them, the plastic bags will melt and stick to the articles. Contents of the invention [0003] The object of the present invention is to provide a high-temperature-resistant plastic bag and its preparation method. The plastic bag prepared by the preparation method can withstand relatively high temperature, and will not release harmful substances and produce pecul...
Claims
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Application Information
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