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Modified plastic and preparation method thereof

A modified plastic technology, applied in the field of modified plastics and its preparation, can solve the problems of poor mechanical properties, limited application range, and low surface hardness of HDPE, and achieve good impact resistance and flexibility, long service life, and good impact effect

Inactive Publication Date: 2019-02-05
安徽苍旺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor mechanical properties of HDPE, easy to deform, easy to age, low surface hardness, easy to scratch, which limits its application range, it needs to be modified to improve its comprehensive mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A modified plastic made from the following raw materials in parts by weight: 70 parts of high-density polyethylene, 30 parts of superfine talcum powder, 2 parts of lubricant, 1.5 parts of mixed oil, 1 part of zinc stearate, and 0.5 parts of light stabilizer parts, 1.5 parts of antioxidant, 4 parts of polymer compatibilizer.

[0017] The preparation method of modified plastics, the steps are as follows:

[0018] 1) Add high-density polyethylene, antioxidant, and polymer compatibilizer into a mixer for mixing, control the rotation speed to 400 rpm, the mixing temperature to 70°C, and the mixing time to 10 minutes to obtain material A;

[0019] 2) Add ultra-fine talcum powder, lubricant, mixed oil, zinc stearate and light stabilizer to material A, continue mixing, control the speed at 400 rpm, and mix for 10 minutes to obtain material B;

[0020] 3) Transfer the material B to a twin-screw extruder, adjust the rotation speed to 500 rpm, and the temperature to 200° C., extr...

Embodiment 2

[0022] A modified plastic made from the following raw materials in parts by weight: 65 parts of high-density polyethylene, 28 parts of superfine talcum powder, 1.5 parts of lubricant, 1.5 parts of mixed oil, 1.5 parts of zinc stearate, and 0.5 parts of light stabilizer 1 part, 1 part of antioxidant KYJ1010, 4 parts of polymer compatibilizer.

[0023] The preparation method of modified plastics, the steps are as follows:

[0024] 1) Add high-density polyethylene, antioxidant, and polymer compatibilizer into a mixer for mixing, control the rotation speed to 400 rpm, the mixing temperature is 75°C, and the mixing time is 5 minutes to obtain material A;

[0025] 2) Add ultra-fine talcum powder, lubricant, mixed oil, zinc stearate and light stabilizer to material A, continue mixing, control the speed at 400 rpm, and mix for 15 minutes to obtain material B;

[0026] 3) Transfer the material B to a twin-screw extruder, adjust the rotating speed to 600 rpm, and the temperature to 190...

Embodiment 3

[0028] A modified plastic made from the following raw materials in parts by weight: 60 parts of high-density polyethylene, 35 parts of superfine talcum powder, 1 part of lubricant, 2 parts of mixed oil, 1 part of zinc stearate, and 1 part of light stabilizer 1 part, 1 part of antioxidant KYJ1010, 5 parts of polymer compatibilizer.

[0029] The preparation method of modified plastics, the steps are as follows:

[0030] 1) Add high-density polyethylene, antioxidants, and polymer compatibilizers into a mixer for mixing, control the rotation speed at 300 rpm, mix at a temperature of 60°C, and mix for 5 minutes to obtain material A;

[0031] 2) Add ultra-fine talcum powder, lubricant, mixed oil, zinc stearate and light stabilizer to material A, continue mixing, control the speed at 300 rpm, and mix for 10 minutes to obtain material B;

[0032] 3) Transfer the material B to a twin-screw extruder, adjust the rotation speed to 400 rpm, and the temperature to 170° C., extrude and gran...

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Abstract

The invention provides modified plastic and a preparation method thereof. The modified plastic is prepared from the following raw materials in parts by weight: 60-70 parts of high-density polyethylene, 25-35 parts of ultrafine talcum powder, 1-2 parts of a lubricant, 1-2 parts of an oil mixture, 1-2 parts of zinc stearate, 0.2-1 part of a light stabilizer, 1-2 parts of an antioxidant and 3-5 partsof a polymer compatilizer. The modified plastic prepared through the preparation method has the advantages of being good in corrosion resistance, rigidity and transparency and good in impact resistance and flexibility, and a container valve rod made of the modified plastic is good in rigidity and impact resistance, high in strength, better in acid and alkali resistance, stable in size, not liableto deform, more compact in coordination, free of gas leakage, safe, reliable, long in service life and good in application and popularization values.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to a modified plastic and a preparation method thereof. Background technique [0002] High-density polyethylene (HDPE) is a highly crystalline, non-polar thermoplastic resin, non-toxic, tasteless, and odorless white particles. HDPE has a melting point of 130°C, good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, good mechanical strength, dielectric properties, and environmental stress cracking resistance. However, due to the poor mechanical properties of HDPE, it is easy to deform, easy to age, low surface hardness, and easy to scratch, which limits its application range, and it needs to be modified to improve its comprehensive mechanical properties. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides a modified plastic and a preparation method thereof. [0004] To achieve the above o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L91/00C08K3/34C08K5/098C08K5/134
CPCC08L23/06C08L2201/10C08L2201/14C08L2207/062C08L91/00C08K3/34C08K5/098C08K5/1345
Inventor 李军李雪华
Owner 安徽苍旺新材料科技有限公司
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