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Low-temperature-resistant PVC material for refrigerated container and preparation process thereof

A technology for PVC materials and refrigerated containers, which is applied in the field of low-temperature-resistant PVC materials for refrigerated containers and the field of preparation technology, can solve the problems of easy breakage, breakage and damage of accessories in the box, etc., and achieves easy preparation, strong impact resistance, and simple material formula. Effect

Inactive Publication Date: 2021-04-20
QINGDAO NANYANG POLI FILM IND
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  • Summary
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  • Description
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Problems solved by technology

[0002] Refrigerated containers are used to store and transport food that needs to be frozen. Therefore, the components in the container, especially the plastic parts, need to have high low temperature resistance, while the existing conventional low temperature resistant PVC materials are easily broken in low temperature environments. Especially during the handling process, the forklift enters the box and collides with the box body, causing the accessories in the box to break and damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0012] A kind of anti-low temperature PVC material for refrigerated containers of this embodiment, the raw materials and components used are as follows: 150 parts of PVC, 20 parts of calcium carbonate, 7 parts of CPE, 9 parts of dioctyl ester, 15 parts of MBS, and 1 part of toner.

[0013] The method for preparing low-temperature resistant PVC materials for refrigerated containers is to add PVC, calcium carbonate, CPE, dioctyl ester, MBS, and toner in proportion to the hopper, and screw the materials to the hot mixing pot. After all materials are loaded, mix them evenly, make the temperature of the mixed materials reach 125°C, and the hot mixing time reaches more than 25 minutes, then cool to 40°C for discharge, and naturally cool to room temperature to obtain low-temperature resistant PVC materials for use.

[0014] Before mixing, the temperature in the hot mixing pot should be controlled below 40 degrees.

[0015] The low temperature resistant PVC material does not break whe...

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Abstract

The present invention discloses a Low-temperature-resistant PVC material for refrigerated container and a preparation process thereof. The low-temperature-resistant PVC material is prepared from 150 parts of PVC, 20 parts of calcium carbonate, 7 parts of CPE, 9 parts of dioctyl phthalate, 15 parts of MBS and 1 part of toner, is simple in material formula and easy to prepare, and has the impact strength of 50kj / m<2> at 20 DEG C. The product prepared by the invention can reach 230KJ / m<2> according to required impact test standards; and it can be guaranteed that the product still has high impact resistance at the temperature of minus 40 DEG C.

Description

technical field [0001] The invention belongs to the technical field of low-temperature-resistant PVC materials for refrigerated containers, and particularly relates to a low-temperature-resistant PVC material for refrigerated containers and a preparation process. Background technique [0002] Refrigerated containers are used to store and transport foods that need to be frozen, so the components in the container, especially the plastic parts, need to have high low temperature resistance, and the existing conventional low temperature resistant PVC materials are extremely fragile in low temperature environments. Especially in the process of handling, the forklift enters the box and collides with the box, causing the parts in the box to break and break. SUMMARY OF THE INVENTION [0003] In order to overcome the above technical problems existing in the prior art, the purpose of the present invention is to provide a low temperature resistant PVC material and a preparation pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08L51/04C08K3/26
Inventor 于乃洲董月亮
Owner QINGDAO NANYANG POLI FILM IND
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