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Door seal and its preparation method, refrigeration equipment

A door seal and foaming agent technology, applied in the field of door seals and their preparation, can solve the problems of door seals and side panels, door body adhesion, poor migration resistance of door seals, corrosion of side panels and door bodies, etc., to achieve Good cold resistance, improved cold resistance, good elasticity and toughness

Active Publication Date: 2016-05-18
HEFEI MIDEA REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the door seals of refrigeration equipment have poor migration resistance, which often causes the door seals to stick to the side panels and the door body. The door seals will corrode the side panels and the door body, etc., and even cause cracking and other adverse effects in severe cases.

Method used

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  • Door seal and its preparation method, refrigeration equipment
  • Door seal and its preparation method, refrigeration equipment

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0048] PVC resin powder (Shanghai Chlor-Alkali SG-Ⅲ) 100 parts by weight, polyester plasticizer (PPA-2300) 30 parts by weight, auxiliary plasticizer 15 parts by weight (including 10 parts by weight of ESO and 5 parts by weight of DOA), 25 parts by weight of light calcium Parts, 3 parts by weight of Ca-Zn stabilizer, 2 to 3 parts by weight of pigment, and 1 to 2 parts by weight of antibacterial agent. 1~1.5 parts by weight of foaming agent, plasticizer and Ca-Zn stabilizer are mixed and ground together according to the ratio. Put the PVC resin powder into the high mixer, stir at low speed, and add the plasticizer slowly while stirring , After the addition, turn to high speed. When the temperature rises to about 100 degrees Celsius, turn to low speed and alternate low and high speeds to control the temperature of the material between 90 and 110 degrees Celsius for about 15 minutes. Turn to low speed and add others, and finally add calcium powder, continue to stir for 3 to 5 minut...

example 2

[0050] PVC resin powder (Formosa Plastics S-70) 100 parts by weight, powder nitrile (P83) 10 parts by weight, TOTM 35 parts by weight, ESO 10 parts by weight, DOS 5 parts by weight, organic tin 3 parts by weight, and light calcium 20 parts by weight, pigment 2 ~3 parts by weight, and 1-2 parts by weight of antibacterial agent. Production and processing according to the process of Example 1.

example 3

[0052] PVC resin powder (SGII) 45% by weight, TOTM 22% by weight + DOTP 10%, calcium powder 18% by weight, Ca-Zn stabilizer 1.5% by weight, pigment 1.5% by weight, antibacterial agent 0.3% to 1.0% by weight. According to the process of Example 1 production and processing.

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Abstract

The invention discloses a door sealing strip, a preparation method thereof and refrigeration equipment. The door sealing strip contains the following ingredients in parts by weight: 40-50 parts of PVC (Polyvinyl Chloride) resin, 25-35 parts of plasticizer, 3-10 parts of elastomer, 1.5-2.5 parts of heat stabilizer, 0-20 parts of inorganic filler, 1-2 parts of lubricant and 1-1.5 parts of foaming agent. The door sealing strip disclosed by the invention has the advantages of good elasticity and toughness, low mobility, difficulty in adhesion to a side plate, a door body and the like, no corrosiveness to the side plate, the door body and the like, and the like, and the service life of the door sealing strip is longer.

Description

Technical field [0001] The invention relates to a door seal, a preparation method thereof, and refrigeration equipment. Background technique [0002] In the prior art, the door seals of refrigeration equipment have poor migration resistance, which often causes the door seals to adhere to the side panels and door bodies. The door seals will corrode the side panels and the door body, and may even cause cracking and other adverse effects. [0003] Therefore, the current door seal still needs improvement. Summary of the invention [0004] The present invention aims to solve at least one of the technical problems existing in the prior art. [0005] For this reason, in one aspect of the present invention, the present invention proposes a door seal. According to an embodiment of the present invention, the door seal includes: 40-50 parts by weight of PVC resin; 25-35 parts by weight of plasticizer; 3-10 parts by weight of elastomer; 1.5-2.5 parts by weight of heat stabilizer; 0-20 parts by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08K13/02C08K3/26C08J9/10C09K3/10F25D23/02
Inventor 任媛媛曹家汉贾丽项灵芝
Owner HEFEI MIDEA REFRIGERATOR CO LTD