Novel rubber composition for automobile water pipe, preparation method and product thereof

A technology of rubber composition and rubber products, applied in the field of artificial rubber, which can solve the problems of appearance blooming, energy, economic benefit and production efficiency loss, and achieve the effects of low cost, good vulcanizate performance and stable shrinkage

Active Publication Date: 2021-04-27
NANJING ORIENTLEADER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, during the use of the product, there will often be frosting on the appearance, resulting in multiple returns requiring secondary treatment, causing a lot of losses in terms of energy, economic benefits, and production efficiency.

Method used

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  • Novel rubber composition for automobile water pipe, preparation method and product thereof
  • Novel rubber composition for automobile water pipe, preparation method and product thereof
  • Novel rubber composition for automobile water pipe, preparation method and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] The technical solutions of the present invention will be further described below in conjunction with specific examples.

[0037] Table 1 The raw material components and their proportions of the sulfur vulcanized EPDM composition of Examples 1-5

[0038] Raw material composition (unit: g) Example 1 Example 2 Example 3 Example 4 Example 5 First EPDM 20 30 40 70 70 Second EPDM 80 70 60 30 30 Zinc oxide 5 5 5 5 5 stearic acid 1 1 1 2 2 sulfur 0.5 0.5 0.5 1 0.5 Vulcanizing agent TETD 1 0 0 0 0 Accelerator TBzTD-70 1 1.5 1.5 1 1.5 DPTT 0 1 1 1 1 Accelerator CZ 1 1 1 1 1 DTDM 0 0 1.5 0 1.5 DTDC-80 1.5 1.5 0 0 0 Accelerator BZ 1 1.5 1.5 1.5 1.5 Auxiliary cross-linking agent TAIC 1 1 1 1 1 Antiaging agent RD 2 2 2 2 2 Antiaging agent FR 1 1 1 1 1 N330 carbon black 60 40 40 50 50 quick press carbon b...

Embodiment 3

[0050]The extrusion swell rate of Example 3 is 10.3%, while the extrusion swell rate of this type of rubber compound for water pipes is generally 17%-18%, which is about 40% lower than that of common rubber compounds;

[0051] The shrinkage tracking data of the extruded inner and outer diameters of Example 3 are as follows:

[0052] Table 3 The shrinkage data table of the sulfur vulcanized EPDM composition prepared in Example 3

[0053]

[0054] From attached Figure 1-2 As can be seen from the comparison, the products of the present invention are made with respect to common sizing materials:

[0055] Products made of ordinary rubber materials will bloom after 6 months of storage.

[0056] The rubber product of the present invention: there is no blooming phenomenon after being parked for 10 months.

[0057] As can be seen from the above examples, the rubber composition of the present invention is resistant to aging, 3# oil, coolant, low temperature, and ozone, and has th...

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PUM

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Abstract

The invention belongs to the technical field of artificial rubber, in particular to a new type of rubber composition for automobile water pipes, a preparation method and its products. The composition includes EPDM rubber: 100 parts, carbon black: 80-125 parts, Silicate: 0-60 parts, calcium carbonate: 0-60 parts, vulcanizing agent: 3-8 parts, plasticizer: 40-70 parts, anti-aging agent: 1-3 parts. Its advantages are that it has good stiffness, ensures excellent extrusion process, avoids the phenomenon of hose collapse caused in the extrusion process and tube cutting process, and improves the appearance and dimensional stability of the product; the rubber composition of the present invention not only It has excellent low temperature resistance, liquid resistance, aging resistance, stable shrinkage, low cost, and no frosting. It is very practical for meeting the technical requirements of water pipes and optimizing the production process of rubber hoses.

Description

technical field [0001] The invention belongs to the technical field of artificial rubber, and relates to a novel rubber composition for automobile water pipes, a preparation method and products thereof. Background technique [0002] At present, the water pipe products on the market often have insufficient stiffness and excessive shrinkage during the production process, which brings a lot of trouble to the production process and seriously affects the production efficiency and product qualification rate. Insufficient rigidity of the tube billet is easy to cause adhesion and collapse at the cutting place during the cutting process, and even delamination of the reinforcing layer and the rubber due to the friction between the cutting knife and the section of the tube billet during the cutting action; Swelling will generally occur when extruding the rubber compound. This mouth expansion is proportional to the extrusion shrinkage in the length direction. Controlling this property i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L91/06C08K13/02C08K3/04C08K3/34C08K3/26C08K3/06C08K5/39C08K5/47C08K5/40B29C35/02B29C35/04
CPCB29B7/002B29C35/02B29C35/045B29C35/049C08K2003/265C08K2201/011C08K2201/014C08L23/16C08L2201/08C08L2203/18C08L2205/025C08L2205/03C08L91/06C08K13/02C08K3/04C08K3/34C08K3/26C08K3/06C08K5/39C08K5/47C08K5/40
Inventor 鞠建宏宋亚平邹慧芳张晓太信晓庆郑兆杰马廷春
Owner NANJING ORIENTLEADER TECH CO LTD
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