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From January to June, the cumulative total output of domestic plastic products was 26.704 million tons, an increase of 7.3 percentage points year-on-year. In June, the output of domestic plastic products was 5,267,700 tons, an increase of 14.18 percentage points year-on-year. The data shows that the growth rate of my country’s plastics industry has slowed

In recent years, the price of crude oil has fluctuated greatly, which has caused large fluctuations in the price of chemical products. Under the traditional free-to-market trade model, the chemical industry often has an embarrassing situation that “upstream companies sell low and downstream companies buy expensive”. With the compression of profits, price risk has threatened

In response to the problems in the use of food preservatives and people’s misconceptions about preservatives, the China Consumer Association solemnly reminded consumers in the second consumer warning in 2001: to have a correct understanding and rational view of preservatives in food, and to master common knowledge about food preservatives, so that they can make

Determination of molecular weight and polydispersity of macromolecular polymers by gel permeation chromatography (GPC) has been widely used in various industries due to its advantages of simple operation, economy and speed. For this method, when determining the sample to be tested, it is necessary to select a standard sample to make the standard curve. Therefore,

1. Antioxidant DLTP: White crystalline powder, melting point around 40 ℃, low toxicity, insoluble in water, soluble in benzene, carbon tetrachloride, and acetone. Used as an auxiliary antioxidant for polyethylene, polypropylene, ABS, and polyvinyl chloride resins, it can change the heat resistance and oxygen resistance of products. The general dosage is 0.05%~1.5% 2. Antioxidant 1076:

UV absorbers, as absorbers, are currently the most widely used type of light stabilizers in China. According to their structural design, they can be divided into the use of salicylic acid and its esters, benzophenones, benzotriazoles, and substitution for the production of triazines. The most widely studied industrial applications are benzophenones and benzotriazoles. Quenching agents