PVC sheet material utilizing novel polyester as plasticizer and preparation method therefor

A technology of plasticizer and PVC pipe, which is applied in the field of PVC sheet and its preparation, can solve the problems of low environmental friendliness, and achieve the effects of simple preparation method, convenient operation and good flame retardancy

Active Publication Date: 2016-09-07
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent 103804669B introduces a castor oil polyester plasticizer, and patent CN103408869A studies a kind of acetate plasticizer. Plastic, not very environmentally friendly

Method used

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  • PVC sheet material utilizing novel polyester as plasticizer and preparation method therefor
  • PVC sheet material utilizing novel polyester as plasticizer and preparation method therefor
  • PVC sheet material utilizing novel polyester as plasticizer and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of sodium hypophosphite itaconate: add itaconic acid and sodium hypophosphite in a four-neck flask according to the molar ratio of 1:1, control the temperature at 70°C-80°C, react for 4 hours, and carry out with water and ethanol (1mol:5mol) Purify and dry to obtain sodium itaconate hypophosphite. Add sodium itaconate hypophosphite, succinic acid, and 1,6-hexanediol into a four-necked flask, wherein the molar ratio of sodium itaconate hypophosphite, succinic acid, and 1,6-hexanediol is 0.1:0.9:1.05 The amount of catalyst titanium silicon molecular sieve added is 1.0% of the total mass of sodium itaconate hypophosphite, succinic acid and 1,6 hexanediol; mix the above raw materials, slowly raise the temperature to 175°C under the protection of nitrogen, and react for 3 hours , stop the reaction, cool to room temperature, that is, the new type Polyester plasticizer.

[0035] Put PVC, plasticizer and heat stabilizer into high-speed universal pulverizer and ca...

Embodiment 2

[0038]Add sodium itaconate hypophosphite, succinic acid, and 1,6-hexanediol into a four-necked flask, wherein the molar ratio of sodium itaconate hypophosphite, succinic acid, and 1,6-hexanediol is 0.1:0.9:1.2 The amount of catalyst titanium silicon molecular sieve added is 1.0% of the total mass of sodium itaconate hypophosphite, succinic acid and 1,6 hexanediol; mix the above raw materials, slowly raise the temperature to 175°C under the protection of nitrogen, and react for 3 hours , stop the reaction, cool to room temperature, that is, the new type Polyester plasticizer.

[0039] Put PVC, plasticizer and heat stabilizer into high-speed universal pulverizer and carry out blending, wherein PVC 100 parts, plasticizer 50 parts, heat stabilizer 8 parts. Heat the micro-screw extruder and micro-injection molding machine to 170°C, put the raw materials mixed with a high-speed universal pulverizer into the micro-screw extruder, the speed is 20r / min, the mixing time is 3min, and t...

Embodiment 3

[0042] Add sodium itaconate hypophosphite, succinic acid, and 1,6-hexanediol into a four-neck flask, wherein the molar ratio of sodium itaconate hypophosphite, succinic acid, and 1,6-hexanediol is 0.2:0.8:1.5 The amount of catalyst titanium silicon molecular sieve added is 1.0% of the total mass of sodium itaconate hypophosphite, succinic acid and 1,6 hexanediol; mix the above raw materials, slowly raise the temperature to 175°C under the protection of nitrogen, and react for 3 hours , stop the reaction, cool to room temperature, that is, the new type Polyester plasticizer.

[0043] Put PVC, plasticizer and heat stabilizer into high-speed universal pulverizer and carry out blending, wherein 100 parts of PVC, 45 parts of plasticizers, 6 parts of heat stabilizers. Heat the micro-screw extruder and micro-injection molding machine to 170°C, put the raw materials mixed with a high-speed universal pulverizer into the micro-screw extruder, the speed is 20r / min, the mixing time is 3...

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Abstract

The invention provides a PVC sheet material utilizing novel polyester as a plasticizer and a preparation method, and relates to a novel PVC material and a preparation method thereof. The PVC sheet material comprises the following components in parts by weight: 100 parts of PVC, 25-50 parts of plasticizer and 4-8 parts of heat stabilizer. The novel polyester is copolyester of succinic acid, itaconic sodium hypophosphite and 1,6-hexanediol, has a long-chain macromolecule structure, and has a large entanglement function with a PVC molecular chain, the solvent extraction resistance of the novel polyester is far better than that of other traditional plasticizer, and the molecular structure of the novel polyester further has a phosphate group, so that the novel polyester also has great flame resistance; and more importantly, the plasticizing efficiency of the novel polyester at low content is higher than that of DOP. The PVC sheet material is formed by extruding and injection molding at 170 DEG C through a mini screw extruder and a mini injection molding machine. According to the PVC sheet material utilizing the novel polyester as the plasticizer and the preparation method, products are nontoxic, migration-resisting and anti-aging, have excellent flame resistance and plasticizing performance, and have excellent application prospect; and the preparation method is simple, the operation is convenient, and practicability is strong.

Description

technical field [0001] The invention relates to the manufacture of PVC sheets, in particular to a PVC sheet using novel polyester as a plasticizer and a preparation method thereof. Background technique [0002] Polyvinyl chloride is an extremely important plastic product. Its annual output and consumption rank second only to polyethylene materials in the world. Together with polyethylene, polypropylene, polystyrene and ABS resins, they are collectively referred to as the five general-purpose plastics. resin. Its raw materials have a wide range of sources, low prices, and can be processed by molding, extrusion, injection molding, etc. It is widely used in the fields of automobile industry, construction industry, cables and packaging materials, etc., but the plasticity of PVC is poor, generally Need to add plasticizer to modify it. [0003] Plasticizers are a class of polymer additives, usually high-boiling and non-volatile liquids, or solids with low melting points. They ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/692C08L27/06C08L67/02
CPCC08G63/6926C08L27/06C08L2201/02C08L2201/08C08L2203/202C08L67/02
Inventor 高传慧张欣华韩释剑王静丁丽赵文鹏武玉民
Owner QINGDAO UNIV OF SCI & TECH
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