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Anti-ageing PVC (polyvinyl chloride) pelletizing formula

An anti-aging and antioxidant technology, applied in the chemical field, can solve the problems of poor other properties of PVC materials, chemical properties are not resistant to aging, and high production costs, and achieve the effects of improved anti-aging performance, high cost performance, and simple preparation process.

Inactive Publication Date: 2019-03-19
广东正品智慧科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PVC is a high molecular polymer with a wide range of applications, but its chemical properties are not resistant to aging, and under the existing background technology, when processing PVC materials, additional anti-aging agents need to be added to enhance its anti-aging However, the other properties of the PVC material processed under this condition are poor, and the production cost is high. Therefore, there is a need for a PVC material that can meet the anti-aging requirements during raw material production and also meet the application requirements in other properties, and is cost-effective. PVC raw material granules, so that it can be quickly applied in the production of PVC products without adding additional anti-aging agents, simplifying its production and processing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An anti-aging PVC, comprising the following components: 68 parts of PVC, 0.187 parts of stearic acid, 0.187 parts of calcium stearate, 1.18 parts of ACR, 5 parts of CPE, 17 parts of DOTP, 0.4 parts of antioxidant, 1.9 parts of surfactant, stable 3.2 parts of the agent.

[0018] The antioxidant is a mixture of antioxidant 1076 and antioxidant 264, with a mass ratio of 1:2.75.

[0019] The surfactant is fatty alcohol polyoxyethylene ether sodium sulfate.

[0020] Described stabilizer is PVC thermal stabilizer.

[0021] A granulation method of anti-aging PVC, comprising the steps of:

[0022] 1) Put PVC, ACR, stabilizer, and DOTP into the high mixer and knead for 4 minutes at a temperature of 65°C, then add stearic acid, calcium stearate, CPE, surfactants, and antioxidants and knead for 6 minutes. The temperature is 110°C, and a uniformly mixed material is obtained;

[0023] 2) Put the material obtained in step 1) into a granulator for granulation. The temperature of t...

Embodiment 2

[0025] An anti-aging PVC, comprising the following components: 78 parts of PVC, 0.22 parts of stearic acid, 0.22 parts of calcium stearate, 1.20 parts of ACR, 5.5 parts of CPE, 24 parts of DOTP, 0.5 parts of antioxidant, 2.2 parts of surfactant , 3.35 parts of stabilizer.

[0026] The antioxidant is a mixture of antioxidant 1010 and antioxidant 264, the mass ratio of which is 1:3.

[0027] The surfactant is sodium linear alkylbenzene sulfonate.

[0028] As a further embodiment of the present invention, the stabilizer is a PVC heat stabilizer.

[0029] A granulation method of anti-aging PVC, comprising the steps of:

[0030] 1) Put PVC, ACR, stabilizer, and DOTP into a high-speed mixer and knead for 5 minutes at a temperature of 65°C, then add stearic acid, calcium stearate, CPE, surfactants, and antioxidants and knead for 7 minutes. The temperature is 120°C to obtain a uniformly mixed material;

[0031] 2) Put the material obtained in step 1) into a granulator for granulat...

Embodiment 3

[0033] An anti-aging PVC, comprising the following components: 55 parts of PVC, 0.15 parts of stearic acid, 0.15 parts of calcium stearate, 1.15 parts of ACR, 4.8 parts of CPE, 15 parts of DOTP, 0.3 parts of antioxidant, and 1.8 parts of surfactant , 3.15 parts of stabilizer.

[0034] As a further embodiment of the present invention, the antioxidant is antioxidant 1010.

[0035] As a further embodiment of the present invention, the surfactant is sodium linear alkylbenzene sulfonate.

[0036] As a further embodiment of the present invention, the stabilizer is a PVC heat stabilizer.

[0037] A granulation method of anti-aging PVC, comprising the steps of:

[0038] 1) Put PVC, ACR, stabilizer, and DOTP into the high mixer and knead for 3 minutes at a temperature of 55°C, then add stearic acid, calcium stearate, CPE, surfactants, and antioxidants and knead for 7 minutes. The temperature is 110°C, and a uniformly mixed material is obtained;

[0039] 2) Put the material obtained...

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PUM

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Abstract

The invention discloses an anti-ageing PVC pelletizing formula and belongs to the technical field of chemical materials. The anti-ageing PVC pelletizing formula is composed of, by weight part, 40-85 parts of PVC, 0.1-0.25 part of stearic acid, 0.1-0.25 part of calcium stearate, 1-1.25 parts of ACR (acrylates), 4-6 parts of CPE (chlorinated polyethylene), 10-25 parts of DOTP (dioctyl terephthalate), 0.2-0.6 part of antioxidant, 1.5-2.5 parts of surfactant and 3-3.5 parts of stabilizer. The preparation method of the anti-ageing PVC pelletizing formula comprises blending the PVC, the ACR, the stabilizer and the DOTP inside a high-speed mixture for 3-5 minutes, then sequentially adding in the stearic acid, the calcium stearate, the CPE, the surfactant and the antioxidant for blending for 5-7 minutes to obtain a uniformly mixed material, and pelletizing the uniformly mixed material inside a pelletizing machine to obtain compact anti-ageing PVC pellets; cooling down the anti-ageing PVC pellets through a cooling pan to room temperature, and bagging and sealing the cooled anti-ageing PVC pellets. Without affecting other comprehensive properties such as fire resistance, impedance, strengthand plasticity, the anti-ageing PVC pelletizing formula is increased in anti-ageing performance, high in cost performance, simple in preparation and applicable to industrialized production.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to an anti-aging PVC granulation formula. Background technique [0002] PVC is a high molecular polymer with a wide range of applications, but its chemical properties are not resistant to aging, and under the existing background technology, when processing PVC materials, additional anti-aging agents need to be added to enhance its anti-aging However, the other properties of the PVC material processed under this condition are poor, and the production cost is high. Therefore, there is a need for a PVC material that can meet the anti-aging requirements during raw material production and also meet the application requirements in other properties, and is cost-effective. PVC raw material granules, so that it can be quickly applied in the production of PVC products without adding additional anti-aging agents, simplifying its production and processing process. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L33/04C08L23/28C08L71/02C08K5/00C08K5/09C08K5/098C08K5/13C08K5/134
CPCC08L27/06C08L2201/08C08L2205/035C08L33/04C08L23/286C08L71/02C08K5/00C08K5/09C08K5/098C08K5/13C08K5/1345
Inventor 陈建国
Owner 广东正品智慧科技股份有限公司
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