Door seal and preparation method thereof as well as refrigeration equipment

A technology for refrigeration equipment and door seals, which is applied in the field of door seals and their preparation, can solve the problems of lack of elasticity, corrosion of side panels and door bodies, cracking, etc., and achieve good low-temperature characteristics and increased wear resistance and deformation resistance Effect

Active Publication Date: 2013-05-08
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 seal of the refrigeration equipment is non-foaming, lacks the necessary elasticity, and the elasticity is easily affected by temperature changes
In addition, the door seal is easy to migrate, which often causes the door seal to stick to the side panel and the door body. The door seal will corrode the side panel and the door body, and even cause cracking in severe cases.

Method used

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  • Door seal and preparation method thereof as well as refrigeration equipment
  • Door seal and preparation method thereof as well as refrigeration equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 100 parts by weight of PVC (Qilu Petrochemical S1300), 40 parts by weight of polyester plasticizer (PPA-2500), 10 parts by weight of auxiliary plasticizer (ESO), 2 parts by weight of organotin, 15 parts by weight of light calcium, 15 parts by weight of heavy calcium parts by weight, 0.35 parts by weight of foaming agent (OBSH), and 8 parts by weight of antifungal agent. Main process: Foaming agent, plasticizer and organotin are firstly mixed and ground together according to the ratio, then the PVC resin powder is put into the high-mixer, and stirred at a low speed (400-600r / min, the same below), while stirring slowly Add plasticizer evenly, turn to high speed (800r ~ 1200r) after adding, when the temperature rises to about 100°C, turn to low speed, alternate between low and high speed, control the material temperature between 90°C and 110°C for about 15 minutes. Turn to low speed and add anti-fungal agent, finally add calcium powder, continue to stir for 3-5 minutes, ta...

Embodiment 2

[0056] 40 parts by weight of PVC resin powder (SGⅡ type), 8 parts by weight of powdered nitrile (P83), 25 parts by weight of TOTM, 5 parts by weight of ESO, 1.5 parts by weight of rare earth composite stabilizer, 18 parts by weight of calcium powder, 0.75 parts by weight of AC foaming agent , ZnSt1.25 parts by weight, antibacterial agent 0.5 parts by weight. According to conventional mixing, granulation, extrusion, welding and hanging, the required door seal can be obtained.

Embodiment 3

[0058] 35 parts by weight of PVC (SGⅢ), 15 parts by weight of EVA powder (EVA30 / 10+EVA30 / 30), 15 parts by weight of DOTP+10 parts by weight of TOTM+5 parts by weight of ESO, 2 parts by weight of Ca-Zn stabilizer, 15 parts by weight of calcium powder , 1.25 parts by weight of AC blowing agent, 0.75 parts by weight of antibacterial agent.

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Abstract

The invention discloses a door seal and a preparation method thereof as well as refrigeration equipment, wherein the door seal comprises the following components in parts by weight: 35-50 parts of PVC (polyvinyl chloride) resins, 5-15 parts of elastomer, 20-40 parts of plasticizer, 0-20 parts of inorganic filler, 1-3 parts of heat stabilizer, 0.5-2 parts of lubricating agent and 0.1-2 parts of foaming agent. The door seal disclosed by the invention has a micro-foaming structure, and has the advantages of better elasticity and tenacity, low mobility, less possibility of being adhered to side plates and a door body, low corrosivity for the side plates and the door body, and the like.

Description

technical field [0001] The invention relates to a door seal, a preparation method thereof, and a refrigeration device. Background technique [0002] In the prior art, the door seal of the refrigeration equipment is non-foamed, lacks the elasticity it should have, and the elasticity is easily affected by temperature changes. In addition, the door seal is easy to migrate, which often causes the door seal to stick to the side panel and the door body. The door seal will corrode the side panel and the door body, and even cause cracking in severe cases. [0003] Therefore, present door seal still needs to be improved. Contents of the invention [0004] The present invention aims to solve at least one of the technical problems existing in the prior art. [0005] Therefore, in one aspect of the present invention, the present invention provides a door seal. According to an embodiment of the present invention, the door seal includes: 35-50 parts by weight of PVC resin; 5-15 parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L9/02C08L23/08C08L67/00C08K13/02C08K3/26C08K11/00C08K3/34C08K5/12C08J9/10C08J3/22F25D23/08
Inventor 曹家汉任媛媛项灵芝贾丽唐涛
Owner HEFEI MIDEA REFRIGERATOR CO LTD
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