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PVC granules for refrigerator door seal and preparation method for PVC granules

A refrigerator door and seal technology, which is applied in the field of refrigerator door seal PVC pellets and its preparation, can solve the problems of easy breeding of bacteria, mildew and harmful microorganisms, threat to human health, and many contact times, etc., to avoid potential threats, good light resistance, The effect of improving safety

Inactive Publication Date: 2015-01-21
LUAN SOYEA ELECTRIC APPLIANCE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Refrigerators are often used to store food, with frequent daily contact, it is easy to breed harmful microorganisms such as bacteria and mold, which threaten human health
The commonly used chemical fungicides and fungicides also have potential hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A PVC granular material for refrigerator door seals is prepared from the following component raw materials in weight (kg):

[0020] PVC SG-5 15, PVC SG-3 25, cellulose acetate butyrate 1.5, polydimethylsiloxane 0.3, sodium petroleum sulfonate 0.3, sodium stearate 0.3, epoxy soybean oil 15, palm oil 1.5, Castor oil 1.5, propylene glycol alginate 0.15, pentaerythritol stearate 0.15, sorbitan monooleate 0.15, acetyl tributyl citrate 35, modification additive 3;

[0021] Among them, the modified auxiliary agent is made of the following weight (kg) of raw materials:

[0022] Mica powder 18, bamboo charcoal powder 12, medical stone powder 4, triethanolamine 1.5, tea polyphenols 0.8, carnosic acid 0.3, rosmarinic acid 0.15, silane coupling agent KH-550 1.5, ascorbyl palmitate 0.8;

[0023] The preparation method of modified auxiliary agent:

[0024] Mix mica powder, medical stone powder and bamboo charcoal powder, add triethanolamine, grind evenly, add appropriate amount of ...

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PUM

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Abstract

The invention discloses anti-bacterial and mildewproof PVC granules for a refrigerator door seal. The PVC granules are characterized by comprising the following raw materials in parts by weight: 10-20 parts of PVCSG-5, 20-30 parts of PVCSG-3, 1-2 parts of cellulose acetate butyrate, 0.2-0.4 part of polydimethylsiloxane, 0.2-0.4 part of petroleum sodium sulfonate, 0.2-0.4 part of sodium stearate, 10-20 parts of epoxidized soybean oil, 1-2 parts of palm oil, 1-2 parts of ricinus oil, 0.1-0.2 part of alginic acid propylene glycol ester, 0.1-0.2 part of pentaerythritol stearate, 0.1-0.2 part of sorbitol anhydride monooleate, 30-40 parts of acetyl tributyl citrate and 2-4 parts of performance additive. The PVC granules comprise natural extractives of tea polyphenol, rosmarinic acid, and the like, has anti-bacterial and mildewproof efficacy, is safe and environment-friendly, has favorable light fastness, low temperature resistance, age resistance, fire and flame retardancy and mechanical property, and is high in practicability.

Description

technical field [0001] The invention relates to the field of PVC materials, in particular to PVC pellets for refrigerator door seals and a preparation method thereof. Background technique [0002] The refrigerator door seal is a kind of refrigerator accessory used to seal between the refrigerator door and the box body. Its function is to ensure the freshness of the refrigerator and prolong the service life of the refrigerator. Refrigerators are often used to store food, and they are exposed to many times in daily life. They are prone to breed harmful microorganisms such as bacteria and mold, which threaten human health. The commonly used chemical fungicides and fungicides also have potential hazards. As a natural plant extract, tea polyphenols have broad-spectrum antibacterial properties, can be antibacterial, anti-mildew, anti-radiation, anti-oxidation, and eliminate odor. It is a safe and low-toxic natural active substance. Contents of the invention [0003] The purpos...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L1/14C08L83/04C08K13/06C08K9/06C08K3/34C08K3/04C08K5/42C08K5/098C08K5/1515C08K5/103C08K5/11C08K5/1545
CPCC08L27/06C08L2201/02C08L2201/08C08L2205/025C08L2205/035
Inventor 陈贤召吴卓林
Owner LUAN SOYEA ELECTRIC APPLIANCE MFG CO LTD
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