Hydrolysis-resistant stable PC resin and preparation method thereof

A hydrolysis-resistant, resin-based technology, applied in the polymer field, can solve problems such as poor hydrolysis resistance, achieve good water resistance and oil resistance, improve sliding and migration, excellent sliding properties and corrosion resistance

Inactive Publication Date: 2018-09-18
何凡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PC has poor hydrolysis resistance and cannot be used for products that are repeatedly subjected to high-pressure steam

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] A kind of preparation method of above-mentioned hydrolysis-resistant stable PC resin is characterized in that, comprises the following steps:

[0030] (1) Mix perfluorooctanoic acid potassium, high-sulfur pyrophyllite fine powder, and epoxy soybean oil in a high-speed mixer in proportion for 5-10 minutes;

[0031] (2) Weigh PC, polyether ether ketone, linear low density polyethylene, epoxy modified phenolic resin, calcium zinc stabilizer, antioxidant, lubricant according to the above formula, put into the mixer and stir for 1- 3 minutes to obtain mixed raw materials;

[0032] (3) Put the mixed raw material in step 2 and the mixing product in step 1 into a twin-screw extruder for reaction, and the material stays in the barrel for 1-2 minutes to obtain a reaction product. The twin-screw extruder The temperature of each zone is as follows: the temperature of the first zone is 240-250°C, the temperature of the second zone is 250-260°C, the temperature of the third zone is ...

Embodiment 1

[0035] A hydrolysis-resistant and stable PC resin, characterized in that, in parts by mass, it includes the following raw materials: 60-80 parts of PC, 20-30 parts of polyetheretherketone, 10-15 parts of linear low-density polyethylene, epoxy modified 10-15 parts of phenolic resin, 2-4 parts of potassium perfluorooctanoate, 4-8 parts of high-sulfur pyrophyllite fine powder, 2-4 parts of epoxy soybean oil, 2-4 parts of calcium zinc stabilizer, 0.5-1 part of antioxidant , lubricant 2-4 parts.

[0036] A kind of preparation method of above-mentioned hydrolysis-resistant stable PC resin is characterized in that, comprises the following steps:

[0037] (1) Mix perfluorooctanoic acid potassium, high-sulfur pyrophyllite fine powder, and epoxy soybean oil in a high-speed mixer in proportion for 5-10 minutes;

[0038] (2) Weigh PC, polyether ether ketone, linear low density polyethylene, epoxy modified phenolic resin, calcium zinc stabilizer, antioxidant, lubricant according to the ab...

Embodiment 2

[0042]A hydrolysis-resistant and stable PC resin, characterized in that, in parts by mass, it includes the following raw materials: 60-80 parts of PC, 20-30 parts of polyetheretherketone, 10-15 parts of linear low-density polyethylene, epoxy modified 10-15 parts of phenolic resin, 2-4 parts of potassium perfluorooctanoate, 4-8 parts of high-sulfur pyrophyllite fine powder, 2-4 parts of epoxy soybean oil, 2-4 parts of calcium zinc stabilizer, 0.5-1 part of antioxidant , lubricant 2-4 parts.

[0043] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a hydrolysis-resistant stable PC resin and a preparation method thereof. The hydrolysis-resistant stable PC resin comprises the following raw materials: PC, polyetheretherketone, linear low-density polyethylene, epoxy-modified phenolic resin, potassium perfluorooctanoate, high-sulfur pyrophyllite fine powder, epoxidized soybean oil, a calcium-zinc stabilizer, an antioxidantand a lubricant. The hydrolysis-resistant stable PC resin provided by the invention has the following advantage: through cooperation of the polyetheretherketone, the linear low-density polyethylene and the epoxy-modified phenolic resin in a certain proportion and addition of certain amounts of the potassium perfluorooctanoate, the high-sulfur pyrophyllite fine powder and the epoxidized soybean oil, hydrolysis resistance and mechanical properties of the hydrolysis-resistant stable PC resin are improved.

Description

technical field [0001] The invention belongs to the technical field of polymers, and in particular relates to a hydrolysis-resistant and stable PC resin and a preparation method thereof. Background technique [0002] PC is a linear carbonated polyester, and the carbonic acid groups in the molecule are alternately arranged with other groups. These groups can be aromatic, aliphatic, or both. Bisphenol A PC is the most important industrial product. [0003] PC is an almost colorless glassy amorphous polymer with good optical properties. PC high molecular weight resin has high toughness, the Izod notched impact strength is 600~900J / m, and the heat distortion temperature of the unfilled grade is about 130°C, which can be increased by 10°C after glass fiber reinforcement. The flexural modulus of PC can reach more than 2400MPa, and the resin can be processed into large rigid products. Below 100°C, the creep rate under load is very low. PC has poor hydrolysis resistance and cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L61/16C08L23/08C08L61/06C08L63/00C08L91/00C08K13/04C08K5/098C08K7/00C08K3/34
CPCC08L69/00C08L2201/08C08L2205/035C08L61/16C08L23/0815C08L61/06C08L63/00C08L91/00C08K13/04C08K5/098C08K7/00C08K3/34
Inventor 何凡
Owner 何凡
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