Elastomer environment-friendly material for refrigerator sealing strip and preparation method thereof
An environmentally friendly material and elastomer technology, which is applied in the field of elastomer environmental protection materials for refrigerator sealing strips and their preparation, can solve the problems of low welding strength, poor resilience, oil resistance, etc., and achieves reduction in shrinkage rate, cost reduction, and increase in oil resistance. sexual effect
Active Publication Date: 2020-11-24
南通大学技术转移中心有限公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in addition to the weaknesses of oil resistance, poor resilience, and low welding strength, oil-filled SEBS elastomer materials have always had the risk of mineral oil precipitation during long-term use.
Since this precipitation phenomenon is a slow process, it is often not easy to be valued by people, but as the product is used for a long time, a part of the mineral oil used to adjust the softness and plasticization of SEBS will slowly precipitate to The outer surface of the product, which becomes a problem that cannot be ignored
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1～8
[0043] Embodiments 1 to 8: A kind of elastomer environment-friendly material for refrigerator sealing strips, its components and parts by weight are as follows in Table 1:
[0044] Table 1:
[0045]
[0046]
[0047] Table 2, the components and parts by weight of Comparative Examples 1 to 7 are shown in Table 2 below; wherein, SEBS 6151 is a general grade SEBS produced by Taiwan Rubber Company, and its appearance is loose powder; the degree of polymerization of PVC powder is 2500, ATBC (Acetyl Tributyl Citrate) is one of the most commonly used non-phthalic plasticizers for PVC.
[0048] Table 2:
[0049]
[0050]
[0051] Preparation method of Comparative Examples 1-5: Comparative Examples 1-5 adopt the same preparation method as that of Examples.
[0052] The preparation method of comparative examples 6-7: first mix SEBS and paraffin oil at high speed through a mixer for 8-10 minutes, then add the fully oil-absorbed SEBS and other components into their respectiv...
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Abstract
The invention discloses an elastomer environment-friendly material for a refrigerator sealing strip and a preparation method of the elastomer environment-friendly material. The material is prepared from the following raw material in parts by weight: 60-100 parts of propenyl polyolefin elastomer POP, 1-3 parts of compatilizer, 10-30 parts of thermoplastic polyester elastomer TPEE, 5-12 parts of epoxy resin, 2-5 parts of nano-zinc oxide, 3-5 parts of silicon phosphate, 3 to 6 parts of titanium dioxide, 0.5 to 2 parts of chitosan, 1 to 3 parts of polysilsesquioxane, 0.2 to 1.0 part of antioxidant300 and 3 to 8 parts of talcum powder. The elastomer material for the refrigerator sealing strip has the beneficial effects that the elastomer material for the refrigerator sealing strip has the characteristics of softness, low temperature resistance, easiness in cleaning, dimensional stability, antibiosis, smooth surface, oil resistance and low cost, does not contain a plasticizer, can be recycled, is simple in processing technology and has higher environmental friendliness.
Description
technical field [0001] The invention relates to a preparation method of an elastomer environmental protection material, in particular to an elastomer environmental protection material for refrigerator sealing strips and a preparation method thereof. Background technique [0002] With the rapid development of the refrigerator industry, higher and higher requirements are put forward for the comprehensive performance of refrigerator sealing strips. As the first generation of cross-linked rubber refrigerator sealing strip material, it has gradually withdrawn from the stage of history. Instead, it is the second-generation PVC refrigerator sealing strip material and the third-generation thermoplastic elastomer refrigerator sealing strip material, which together occupy a major share of the market. [0003] Especially in the past ten years, due to its good low temperature resistance, easy oil filling and flexible hardness adjustment, as one of the important thermoplastic elastomer ...
Claims
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IPC IPC(8): C08L23/16C08L67/02C08L63/00C08L5/08C08L83/04C08L51/06C08K13/02C08K3/22C08K3/34
CPCC08L23/14C08K2003/2241C08K2003/2296C08K2201/011C08K2201/014C08K2201/005C08L2205/025C08L2205/035C08L67/025C08L63/00C08L5/08C08L83/04C08L51/06C08K13/02C08K3/22C08K3/34
Inventor 王立春孙青缪爱东
Owner 南通大学技术转移中心有限公司