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Polyvinyl chloride modified plastic and preparation method thereof

A polyvinyl chloride and modification technology, applied in the field of polyvinyl chloride modified plastic and its preparation, can solve the problems of poor aging resistance, poor flame retardancy, poor thermal stability of polyvinyl chloride, etc. Good thermal stability and excellent flame retardancy

Inactive Publication Date: 2015-08-26
殷培花
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its poor thermal stability, poor aging resistance, and poor flame retardancy, PVC generally cannot be used directly. It usually needs to be modified and mixed, and related additives, such as heat stabilizers, flame retardants, Anti-aging agent, etc., to improve its performance and application fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A polyvinyl chloride modified plastic, the composition of which is: 60% polyvinyl chloride, 12% nano filler, 9% bis(2-propylheptyl) phthalate, 6% ACR, Melamine cyanurate 8%, light stabilizer UV-531 2%, calcium zinc stabilizer 1.5%, calcium stearate 0.5%, triisostearyl isopropyl titanate 0.5%, antioxidant 1010 0.5%, all The polyvinyl chloride has an average degree of polymerization of 800-1200, a weight-average molecular weight of 50000-120000, a particle size of 100-300 mesh, and the nanometer filler is light calcium carbonate with a particle size of 1-100nm.

[0016] Preparation method: (1) Weigh each component according to the weight ratio; (2) Add nano-filler and isopropyl triisostearyl titanate into a high-speed mixer, stir at a speed of 1500-3000r / min, And after heating to 80 ℃ ~ 120 ℃, keep stirring for 20 ~ 50 minutes, then put the material into the low speed cooling mixer, stir at the speed of 50 ~ 80r / min, when the material is cooled to 60 ℃ ~ 80 ℃, then add ot...

Embodiment 2

[0018] A polyvinyl chloride modified plastic, its components are proportioned by mass percentage: 80% polyvinyl chloride, 5% nano filler, 5% dioctyl terephthalate, 3% ACR, 5% melamine cyanurate, Light stabilizer UV-531 0.8%, calcium zinc stabilizer 0.5%, calcium stearate 0.5%, triisostearyl isopropyl titanate 0.1%, antioxidant 1010 0.1%, the average of the polyvinyl chloride The degree of polymerization is 800-1200, the weight-average molecular weight is 50000-120000, the particle size is 100-300 mesh, and the nano filler is silicon dioxide with a particle size in the range of 20-80nm.

[0019] Preparation method: (1) Weigh each component according to the weight ratio; (2) Add nano-filler and isopropyl triisostearyl titanate into a high-speed mixer, stir at a speed of 1500-3000r / min, And after heating to 80 ℃ ~ 120 ℃, keep stirring for 20 ~ 50 minutes, then put the material into the low speed cooling mixer, stir at the speed of 50 ~ 80r / min, when the material is cooled to 60 ℃...

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PUM

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Abstract

The invention discloses a polyvinyl chloride modified plastic and a preparation method thereof. The polyvinyl chloride modified plastic comprises, by mass, 60-80% of polyvinyl chloride, 5-12% of a nanometer filler, 5-9% of a plasticizer, 3-6% of ACR, 5-8% of melamine cyanurate, 0.5-2% of a light stabilizer UV-531, 0.5-1.5% of a calcium and zinc stabilizer, 0.5-1% of calcium stearate, 0.1-0.5% of isopropyl titanium triisostearate and 0.1-0.5% of an antioxidant 1010, and the nanometer filler is light calcium carbonate with the particle size of 1-100nm or silica with the particle size of 20-80nm. The polyvinyl chloride modified plastic has the advantages of excellent mechanical performances, high strength, excellent fire retardation property, good processability, good heat stability, good ageing resistance, low cost, simple preparation process, and easy popularization and application.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polyvinyl chloride modified plastic and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is a thermoplastic resin polymerized by vinyl chloride under the action of an initiator, and is a homopolymer of vinyl chloride. Polyvinyl chloride is a white powder with an amorphous structure, a small degree of branching, a molecular weight generally in the range of 50,000 to 120,000, a large polydispersity, no fixed melting point, good mechanical properties and excellent dielectric properties. It is a general-purpose plastic with high electrical performance and low price. It has been widely used in building materials, light industry, agriculture and other fields. However, due to its poor thermal stability, poor aging resistance, and poor flame retardancy, PVC generally cannot be used directly. It usually needs to be modified and mixed, and r...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L33/04C08K13/02C08K5/3492C08K5/12C08K5/132C08K5/098C08K3/26
CPCC08L27/06C08K2201/003C08K2201/011C08L2201/02C08L2201/08
Inventor 不公告发明人
Owner 殷培花