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A kind of preparation method of low-voc polypropylene material
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A polypropylene material and polypropylene technology, applied in the field of polypropylene material preparation, can solve problems such as unreported applications, and achieve the effects of good anti-oxidation effect, good stability and improved applicability
Active Publication Date: 2022-04-05
四川省聚和高分子材料有限公司
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Its application on polypropylene crystal transformation has not been reported in the prior art
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preparation example Construction
[0049] The invention provides a kind of preparation method of low-VOC polypropylene material, comprises the following steps:
[0050] (1) Prepare raw materials:
[0051] 1000 parts of polypropylene; 20~50 parts of polyphenylene ether;
[0052] 10~50 parts of compatibilizer; 3~10 parts of lubricant;
[0053] 1~10 parts of antioxidant; 1~2 parts of auxiliary antioxidant;
[0054] 0.1~2 parts of nucleating agent; 0.5~1 part of stabilizer;
[0055] The nucleating agent is an aromatic amide β-crystal nucleating agent;
[0056] Stabilizer is sodium stearoyl lactylate;
[0057] (2) Preparation process:
[0058] The prepared raw materials are placed in a mixing container according to the proportion and mixed uniformly to obtain a compound, and then the compound is sent to an extruder for extrusion, cooling, pelletizing and drying to obtain a finished polypropylene product.
[0059] The compatibilizer of the present invention can be selected from one of polypropylene grafted glyc...
experiment example 1
[0079] No antioxidant was added in Experimental Example 1, other antioxidants in the prior art were added in Experimental Example 2 and Experimental Example 3, and Experimental Example 4 and Experimental Example 5 were antioxidants selected by the present invention.
[0080] After carrying out the experiment according to the standard, among the 5 groups of experimental examples, experimental example 1 has the most serious aging, followed by example 3 and example 2, and experimental example 4 and experimental example 5 have weaker aging phenomena. Aging phenomenon is based on color change, gloss change, degree of cracking, chalking, and peeling.
[0081] Experiment 2: The effect of different nucleating agents on the crystallization type of polypropylene materials
[0082] The purpose of the experiment: to verify the effect of different nucleating agents on the crystallization of polypropylene
[0083] Experimental method: Based on the basic raw material of the present inventio...
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Abstract
The invention discloses a preparation method of a low-VOC polypropylene material. The raw materials of the polypropylene material include 1000 parts of polypropylene; 20 to 50 parts of polyphenylene ether; 10 to 50 parts of a compatibilizer; and 3 to 10 parts of a lubricant. 1 to 10 parts of antioxidants; 1 to 2 parts of auxiliary antioxidants; 0.1 to 2 parts of nucleating agents; 0.5 to 1 parts of stabilizers; the raw materials are placed in a mixing container according to the proportions and mixed uniformly to obtain a mixture , and then the mixture is sent to an extruder for extrusion, cooling, pelletizing and drying to obtain a finished polypropylene product. The polypropylene material of the invention belongs to an alloy material, and polyphenylene ether is added to the base material to improve the applicability of the polypropylene alloy material. A better antioxidant effect was obtained.
Description
technical field [0001] The invention relates to the technical field of plastic material preparation, in particular to a preparation method of a low-volatility polypropylene material. Background technique [0002] Polypropylene is a polymer produced by the addition polymerization of propylene. It is a white waxy material with a transparent and light appearance. Density is 0.89~0.91g / cm3, flammable, melting point is 165°C, softens at around 155°C, use temperature range is -30~140°C. It can resist the corrosion of acid, alkali, salt solution and various organic solvents below 80 ° C, and can decompose under high temperature and oxidation. Polypropylene is widely used in the production of clothing, blankets and other fiber products, medical equipment, automobiles, bicycles, parts, pipelines, chemical containers, etc., and is also used in food and drug packaging. [0003] Polypropylene is a common monomer polymer, which is widely used in many fields due to its good properties....
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