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High-fluidity hard PVC material for injection molding and preparation method thereof

A PVC material and high fluidity technology, applied in the field of polymer materials, can solve the problems of poor PVC fluidity and achieve the effect of improving surface gloss and high fluidity

Active Publication Date: 2021-03-26
山东鲁泰控股集团有限公司石墨烯高分子复合材料研发中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of poor PVC fluidity existing in the prior art, the present invention provides a kind of high fluidity rigid PVC material and preparation method thereof for injection molding, to solve the above-mentioned question

Method used

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  • High-fluidity hard PVC material for injection molding and preparation method thereof

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Embodiment 1

[0028] A high fluidity rigid PVC material for injection molding, comprising the following components in parts by weight: 100 parts of PVC resin powder; 3 parts of mercaptan methyl tin; 3 parts of epoxy soybean oil; 3 parts of acrylate copolymer; 4 parts of oxidized polyethylene; 1 part of titanium dioxide; 9 parts of nano-active calcium carbonate; 0.1 part of polyethylene wax; 1.1 parts of pentaerythritol stearate; 0.4 parts of oxidized polyethylene wax; 0.8 parts of polyol fatty acid ester; share. Wherein, the molecular weight of pentaerythritol stearate is 1200, and the molecular weight of polyhydric alcohol fatty acid ester is 600.

[0029] The preparation method is as follows:

[0030] (1) Add 100 parts of PVC resin powder and 3 parts of methyl tin mercaptide into a high-speed mixer, stir and heat up to above 60°C;

[0031] (2) Add 3 parts of epoxidized soybean oil, 0.4 parts of oxidized polyethylene wax, 0.8 parts of polyol fatty acid ester, and 0.3 parts of brightener ...

Embodiment 2

[0036] A high fluidity rigid PVC material for injection molding, comprising the following components in parts by weight: 100 parts of PVC resin powder; 3 parts of mercaptan methyl tin; 3 parts of epoxy soybean oil; 3 parts of acrylate copolymer; 3 parts of oxidized polyethylene; 1.5 parts of titanium dioxide; 8.5 parts of nano-active calcium carbonate; 0.1 parts of polyethylene wax; 1.0 parts of pentaerythritol stearate; 0.4 parts of oxidized polyethylene wax; share. Wherein, the molecular weight of pentaerythritol stearate is 1300, and the molecular weight of polyhydric alcohol fatty acid ester is 800.

[0037] The preparation method is as follows:

[0038] (1) Add 100 parts of PVC resin powder and 3 parts of methyl tin mercaptide into a high-speed mixer, stir and heat up to above 60°C;

[0039](2) Add 3 parts of epoxidized soybean oil, 0.4 parts of oxidized polyethylene wax, 1.2 parts of polyol fatty acid ester, and 0.3 parts of brightener into a high-speed mixer, mix for ...

Embodiment 3

[0044] A high fluidity rigid PVC material for injection molding, comprising the following components in parts by weight: 100 parts of PVC resin powder; 2.5 parts of mercaptan methyl tin; 1 part of epoxy soybean oil; 3 parts of acrylate copolymer; 3 parts of oxidized polyethylene; 1.5 parts of titanium dioxide; 4 parts of nano-active calcium carbonate; 0.1 part of polyethylene wax; 1.1 parts of pentaerythritol stearate; 0.4 parts of oxidized polyethylene wax; 1.2 parts of polyol fatty acid ester; share. Wherein, the molecular weight of pentaerythritol stearate is 1000, and the molecular weight of polyhydric alcohol fatty acid ester is 900.

[0045] The preparation method is as follows:

[0046] (1) Add 100 parts of PVC resin powder and 2.5 parts of methyl tin mercaptide into a high-speed mixer, stir and heat up to above 60°C;

[0047] (2) Add 1 part of epoxy soybean oil, 0.4 part of oxidized polyethylene wax, 1.2 parts of polyol fatty acid ester, and 0.3 part of brightener in...

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Abstract

The invention relates to a high-fluidity hard PVC material for injection molding and a preparation method thereof, and belongs to the technical field of high polymer materials. The material comprisesthe following components in parts by weight: 100 parts of PVC resin powder; 0.5-3 parts of a heat stabilizer; 1-3 parts of a plasticizer; 1-3 parts of a processing aid; 1-4 parts of a toughening agent; 4-10 parts of an inorganic filler; 0.1-2 parts of an external lubricant; 0.1-3 parts of an internal lubricant; 0.1-1 part of brightener. Through the synergistic effect of the low-melting-point and high-temperature-resistant outer lubricant, inner lubricant and plasticizer, the prepared PVC particles for injection molding have higher flowability, demolding property and thermal stability.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a high fluidity rigid PVC material for injection molding and a preparation method thereof. Background technique [0002] As one of the five major thermoplastics, PVC has been successfully used in the fields of light industry, construction industry, packaging industry, electrical and electronic components, and processing technology because of its non-conductivity, corrosion resistance, relatively cheap price, and mature raw material synthesis technology. Mainly including extrusion, injection molding, etc. At present, the melting index (190°C, 21.6Kg) of the more common raw materials for rigid PVC injection molding parts is generally around 13.0g / 10min, and is mainly used for the production of toys, floor mats, auto parts, pipe fittings, etc. Products, and injection molded parts with complex structure and heavy weight are relatively rare. This is because such...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/06C08L91/00C08L33/04C08L23/28C08K5/58C08K3/22C08K3/26C08K5/103C08K13/02
CPCC08L27/06C08K2201/011C08K2003/2241C08K2003/265C08L2205/035C08L2201/08C08L23/06C08L91/00C08L33/04C08L23/286C08K5/58C08K3/22C08K3/26C08K5/103C08K13/02
Inventor 唐计光汤保民高虎马洁从宪玲李奇
Owner 山东鲁泰控股集团有限公司石墨烯高分子复合材料研发中心