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Preparation method of polyvinyl chloride (PVC)-based material granule plasticized by non-benzene plasticizer for preparing hard or semi-hard products

A polyvinyl chloride and semi-rigid technology, which is used in the preparation of polyvinyl chloride material particles, can solve the problems of plasticizer toxicity, high volatility, and migration resistance, and achieve low volatility, performance resistance to migration, The effect of reducing product cost

Active Publication Date: 2013-04-24
山东万图高分子材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems that existing plasticizers have certain toxicity, intolerance to migration, high volatility, and peculiar smell, and provide a non-benzene-based plasticizer for preparing hard or semi-rigid products. Process for the preparation of plasticized polyvinyl chloride base particles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The preparation method of tripalmityl citrate used in the present invention is as follows:

[0016] (1) The preparation method of the composite catalyst: Weigh 10g of zinc acetate and 2g of antimony trioxide into a 50ml beaker respectively, perform electromagnetic stirring at room temperature, mix evenly, and set aside.

[0017] (2) Esterification reaction: add 0.2mol citric acid, 0.6mol palmityl alcohol, and 0.052mol cyclohexane to a 500ml four-necked bottle equipped with a temperature-controlled oil bath, agitator, water separator, and reflux condenser, and heat to Stir at 30°C. After the citric acid is completely dissolved and mixed evenly with palmityl alcohol, take a sample to measure the initial acid value A of the reaction solution. 0 , then add 0.19g of the composite catalyst prepared in step (1), heat to 100°C, and stir to generate reflux. When the water produced by the reaction begins to separate from the water separator, it is counted as the start time of th...

Embodiment 2

[0022] Non-benzene plasticizer plasticized PVC base material particles used to prepare rigid semi-rigid products (such as pharmaceutical packaging sheets or films), the basic formula is as follows: polyvinyl chloride resin (Yibin Tianyuan Co., Ltd., SG-3 type PVC, the same below) accounted for 100 parts, tripalmityl citrate (the same below) obtained in Example 1 accounted for 5 parts by weight, nontoxic stabilizer calcium-zinc composite stabilizer (Chuzhou City Hongyuan Spray Co., Ltd. company, HWG-301) accounted for 5 parts by weight, lubricant stearic acid (Chengdu Kelong Chemical Reagent Factory) accounted for 0.2 parts by weight. Add all raw materials into a high-speed mixer and mix well.

[0023] The non-toxic PVC base material granules are prepared by conical twin-screw extruder (Nanjing Grant Rubber and Plastic Equipment Co., Ltd., SJZ55 / 110), and the temperature control is as follows: feeding section: 155°C; plasticizing section: 175°C; metering Section: 170°C; Granul...

Embodiment 3

[0025] The basic formula of non-benzene-based plasticizer-plasticized PVC base particles used to prepare soft products (such as disposable infusion sets) is as follows: polyvinyl chloride resin accounts for 100 parts, tripalmityl citrate accounts for 50 parts, The non-toxic stabilizer epoxy soybean oil (Sinopec Jinling Petrochemical Company Technology Development Company) accounted for 0.8 parts, and the lubricant stearic acid (Chengdu Kelong Chemical Reagent Factory) accounted for 0.2 parts.

[0026] The non-toxic PVC base material granules are prepared by a conical twin-screw extruder, and the temperature is controlled as follows: feed section: 145°C; plasticizing section: 165°C; metering section: 165°C; granulator head: 165°C.

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Abstract

The invention relates to a preparation method of polyvinyl chloride (PVC)-based material particle plasticized by non-benzene plasticizer used for preparing horniness or half horniness products, aiming at solving the technical problems that the existing plasticizer has certain toxicity, is not transference-resistant and has odor. The PVC-based material comprises PVC and the non-benzene plasticizer, wherein the weight ratio between the PVC and the non-benzene plasticizer is 100: 5-200. The PVC-based material can be widely used for producing disposable plastic medical supplies, pharmaceutical package sheet, toys for children and artificial leather.

Description

technical field [0001] The invention relates to a polyvinyl chloride base material for producing disposable plastic medical supplies, pharmaceutical packaging films, children's toys and artificial leather and its preparation method, in particular to a non-rigid or semi-rigid product. The invention discloses a preparation method of polyvinyl chloride base material particles plasticized by a benzene plasticizer. Background technique [0002] Polyvinyl chloride (PVC), one of the most produced plastic products in the world, is inexpensive and widely used. According to different uses, PVC can be made into different types of hard and soft products by adding an appropriate amount of plasticizer. Rigid PVC sheets can be used as packaging materials for oral capsules and tablets. Soft PVC can be used as a raw material for the production of disposable medical supplies, soft children's toys and artificial leather. [0003] In the processing of PVC materials, plasticizers are the most...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/11C08L27/06B29C45/78B29C43/58
Inventor 周昌林王春娥雷景新闫建强
Owner 山东万图高分子材料股份有限公司
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