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PVC heat-insulating film and preparation process thereof

A preparation process and technology of thermal insulation film, applied in flexible covering, packaging/bundling items, packaging, etc., can solve the problems of short service life, poor thermal insulation effect, etc., achieve excellent thermal insulation, prevent caking, preparation simple craftsmanship

Inactive Publication Date: 2019-06-25
驰诺国际货运有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing refrigerant heat insulation film has a certain heat insulation effect, but its heat insulation effect is poor, and its service life is short, so it is necessary to improve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The PVC heat insulation film components include 40 parts by weight of PVC resin, 10 parts of chlorinated polyethylene, 3 parts of barium-zinc composite stabilizer, 4 parts of silicon micropowder, 4 parts of hexamethylene diisocyanate, 3 parts of silicon micropowder, 1 part of nano-titanium dioxide, 2 parts of flame retardant and 2 parts of waterproofing agent.

[0017] The preparation process of the present embodiment comprises the following steps:

[0018] A. Mix chlorinated polyethylene, barium-zinc composite stabilizer, silicon micropowder, hexamethylene diisocyanate, silicon micropowder, and nano-titanium dioxide, and then add it to the stirring tank for low-speed stirring. The stirring rate is 200 rpm and the stirring time is 20 minutes. , to obtain mixture A;

[0019] B. Add flame retardant, water repellent and PVC resin to mixture A, mix well and add to the kneader for kneading. The kneading temperature is 180°C and the kneading time is 12 minutes. After that, i...

Embodiment 2

[0022] The PVC heat insulation film components include 50 parts of PVC resin, 20 parts of chlorinated polyethylene, 9 parts of barium-zinc composite stabilizer, 10 parts of silicon micropowder, 10 parts of hexamethylene diisocyanate, 9 parts of silicon micropowder, 3 parts of nano titanium dioxide, 4 parts of flame retardant and 5 parts of waterproofing agent.

[0023] The preparation process of the present embodiment comprises the following steps:

[0024] A. Mix chlorinated polyethylene, barium-zinc composite stabilizer, silicon micropowder, hexamethylene diisocyanate, silicon micropowder, and nano-titanium dioxide, and then add it to the stirring tank for low-speed stirring. The stirring rate is 400 rpm and the stirring time is 40 minutes. , to obtain mixture A;

[0025] B. Add flame retardant, water repellant and PVC resin to mixture A, mix well and then add to the kneader for kneading, the kneading temperature is 220°C, kneading time is 22min, and then slowly cool to roo...

Embodiment 3

[0028] The PVC heat insulation film components include 42 parts of PVC resin, 12 parts of chlorinated polyethylene, 4 parts of barium-zinc composite stabilizer, 5 parts of silicon micropowder, 5 parts of hexamethylene diisocyanate, 4 parts of silicon micropowder, 1 part of nano-titanium dioxide, 2 parts of flame retardant and 3 parts of waterproofing agent.

[0029] The preparation process of the present embodiment comprises the following steps:

[0030] A. Mix chlorinated polyethylene, barium-zinc composite stabilizer, silicon micropowder, hexamethylene diisocyanate, silicon micropowder, and nano-titanium dioxide, and then add it to the stirring tank for low-speed stirring. The stirring rate is 250 rpm, and the stirring time is 25 minutes. , to obtain mixture A;

[0031] B. Add flame retardant, water repellent and PVC resin to mixture A, mix well and add to the kneader for kneading, the kneading temperature is 190°C, kneading time is 14min, and then slowly cool to room tempe...

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PUM

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Abstract

The invention discloses a PVC heat-insulating film and a preparation process thereof. The PVC heat-insulating film comprises the following components in parts by weight: 40-50 parts of PVC resin, 10-20 parts of chlorinated polyethylene, 3-9 parts of a barium-zinc composite stabilizer, 4-10 parts of silica powder, 4-10 parts of hexamethylene diisocyanate, 3-9 parts of silicon micropowder, 1-3 partsof nano titanium dioxide, 2-4 parts of a flame retardant and 2-5 parts of a waterproof agent, the preparation process is simple, and the prepared PVC heat-insulating film has excellent heat insulation property, waterproof and fireproof performance, can be used as pallet outer packaging wrapping films for a refrigerant canister, and can prevent the small tank from being exploded or refrigerant leakage caused by rising of temperature in the container transportation process.

Description

technical field [0001] The invention relates to the technical field of heat-insulating film preparation, in particular to a PVC heat-insulating film and a preparation process thereof. Background technique [0002] The main component of PVC is polyvinyl chloride, which is light yellow, translucent and shiny. Transparency is better than polyethylene and polypropylene, and worse than polystyrene. Depending on the amount of additives, it can be divided into soft and hard PVC. Soft products are soft and tough, and feel sticky. The hardness of hard products is higher than that of low-density polyethylene. And lower than polypropylene, there will be whitening at the inflection. Common products: plates, pipes, soles, toys, doors and windows, wire sheaths, stationery, etc. It is a polymer material that uses a chlorine atom to replace a hydrogen atom in polyethylene. [0003] The existing refrigerant heat insulation film has a certain heat insulation effect, but its heat insulation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08L23/06C08L23/12C08K13/02C08K3/36C08K3/22C08K3/04C08K3/38C08J5/18B65D65/38B65B11/00
Inventor 张春港
Owner 驰诺国际货运有限公司