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A kind of polyvinyl chloride plastic composition

A technology of plastic composition and polyvinyl chloride, applied in the field of general polymer materials, can solve problems such as toxicity, and achieve the effects of lowering the melting point of resin, remarkable migration resistance, and not easy to decompose

Active Publication Date: 2017-07-21
殷若瑜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of plasticizer is toxic and has been banned by the US Consumer Product Safety Commission (CPSC) from being used in child care appliances and toy products, which makes the development of environmentally friendly and non-toxic new plastic plasticizers a hot spot in plasticizer research

Method used

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  • A kind of polyvinyl chloride plastic composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] With 100 parts of polyvinyl chloride, polychloropropyl carbonate (polycarbonate chain link molar content is 76.5%, molecular weight distribution is 2.3, number average molecular weight M n 7800g / mol) 10 parts, 100 parts of cyclic chloropropyl carbonate, 5 parts of dibutyltin dilaurate, and 3 parts of calcium stearate are mixed uniformly in a high-speed mixer to obtain a premix, and then the premix is ​​mixed with a single screw The polyvinyl chloride plastic composition was obtained by melt blending and extruding with an extruder, and the polyvinyl chloride plastic composition was pressed into a sheet by a flat vulcanizer for tensile and impact tests. The test results are shown in Table 1.

Embodiment 2

[0036] With 100 parts of polyvinyl chloride, polychloropropylene carbonate (polycarbonate chain link molar content is 58.1%, molecular weight distribution is 2.1, number average molecular weight M n 2900g / mol) 50 parts, 5 parts of nonylcyclopropyl carbonate, 5 parts of dibutyltin dilaurate, 2 parts of stearic acid, 3 parts of calcium stearate are mixed in high-speed blender and obtain premix, then The premix was melt blended and extruded with a single-screw extruder to obtain a polyvinyl chloride plastic composition, and the polyvinyl chloride plastic composition was pressed into a sheet by a flat vulcanizer for tensile and impact tests. The test results are shown in the table one.

Embodiment 3

[0038] With 100 parts of polyvinyl chloride, polypropylene carbonate (polycarbonate chain link molar content is 88.5%, molecular weight distribution is 2.0, number average molecular weight M n 30 parts of 5900g / mol), 30 parts of nonylcyclopropyl carbonate, 3 parts of dibutyltin dilaurate, and 3 parts of calcium stearate are mixed uniformly in a high-speed mixer to obtain a premix, and then the premix is ​​mixed with a single screw The polyvinyl chloride plastic composition was obtained by melt blending and extruding with an extruder, and the polyvinyl chloride plastic composition was pressed into a sheet by a flat vulcanizer for tensile and impact tests. The test results are shown in Table 1.

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Abstract

The invention relates to a high molecular material technology and aims at providing a polyvinyl chloride plastic composition which comprises the following ingredients in parts by weight: 100 parts of polyvinyl chloride resin, 1-150 parts of a plasticizer, 2-10 parts of a stabilizer, and 2-9 parts of a lubricant, wherein the plasticizer is at least one of polyether carbonate and cyclic carbonate, polyether carbonate is prepared by virtue of controlled polymerization of carbon dioxide and epoxide, and cyclic carbonate is prepared by virtue of coupled reaction of carbon dioxide and epoxide. The used plasticizer is free from toxic and harmful substances, safe and environmentally friendly, and can be used for soft polyvinyl chloride plastic products in the aspects of food package and medical appliances. The product is low possibility of decomposition, discoloration or performance change during a processing process, and has low temperature resistance; the use temperature interval of a final product can be regulated within a relatively large range; the polyvinyl chloride plastic composition is extensive in use, and can be used for extrusion, injection molding, die pressing, calendaring molding and the like so as to prepare various plastic products.

Description

technical field [0001] The invention belongs to the technical field of general polymer materials, and in particular relates to a polyvinyl chloride plastic composition using a non-toxic or low-toxic plasticizer. Background technique [0002] Polyvinyl chloride is one of the earliest industrially produced synthetic resins. Due to its excellent electrical insulation, flame retardancy, chemical corrosion resistance and good mechanical properties, it is widely used in the fields of industry, agriculture, transportation, packaging and power telecommunications. widely. It currently ranks second in global production, second only to polyethylene. [0003] Since polyvinyl chloride is a polar molecule, the interaction between molecular chains is relatively large, the melt viscosity is high at high temperature, the thermal stability is poor, and the brittleness is large at low temperature, so polyvinyl chloride without any processing aids is almost impossible to process. Plasticizers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L69/00C08K5/1565
CPCC08K5/098C08K5/1565C08K5/57C08L27/06C08L2201/02C08L2201/06C08L2201/08C08L69/00C08L91/00C08L91/06
Inventor 洪佳丽丁维军王浩仁闵玉勤黄伟
Owner 殷若瑜