Glue injecting formula of chlorinated polyethylene gas inlet rubber tube
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A technology of chlorinated polyethylene and rubber hoses, which is applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of insufficient temperature resistance, high price, poor oil resistance, etc., and achieve stable operation and meet the requirements of heat resistance Effect
Inactive Publication Date: 2009-09-02
TIANJIN PENGYI GRP CO LTD
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Abstract
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Problems solved by technology
EPDM has poor oil resistance, NBR / PVC has insufficient temperature resistance, and AEM and ECO are expensive
Method used
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Effect test
Embodiment 1
[0026] CM 100 copies,
[0027] N774 30 copies,
[0028] Silica fume B-66 90 parts,
[0029] DOP 20 servings,
[0030] Active magnesium oxide 5 parts,
[0031] Calcium stearate 2 parts,
[0032] FYLP—2 2.5 parts,
[0033] 1 part paraffin,
[0034] 1 copy of RD.
[0035] Resistance to various oils is as follows:
[0036] Resistance to No.1 (100℃×70h) volume change rate -4.91%
[0037] Resistance to No.3 (100℃×70h) volume change rate 44%
[0038] Resistance to 5W-40 (100℃×70h) volume change rate 0.92%.
Embodiment 2
[0040] CM 100 copies,
[0041] N774 50 copies,
[0042] Silica fume B-66 60 parts,
[0043] DOP 30 servings,
[0044] Active magnesium oxide 10 parts,
[0045] 4 parts calcium stearate,
[0046] FYLP—2 3.5 parts,
[0047] 2 parts paraffin,
[0048] RD 3 copies.
[0049] Resistance to various oils is as follows:
[0050] Resistance to No.1 (100℃×70h) volume change rate -4.61%
[0051] Resistance to No.3 (100℃×70h) volume change rate 41%
[0052] Resistance to 5W-40 (100℃×70h) volume change rate 1.46%.
Embodiment 3
[0054] CM 100 copies,
[0055] N774 40 copies,
[0056] Silica fume B-66 75 parts,
[0057] DOP 25 servings,
[0058] Active magnesium oxide 7.5 parts,
[0059] 3 parts calcium stearate,
[0060] FYLP - 2 3 servings,
[0061] 1.5 parts of paraffin,
[0062] 2 copies of RD.
[0063] Resistance to various oils is as follows:
[0064] Resistance to No.1 (100℃×70h) volume change rate -3.82%
[0065] Resistance to No.3 (100℃×70h) volume change rate 42.3%
[0066] Resistance to 5W-40 (100℃×70h) volume change rate 0.49%.
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Abstract
The invention relates to a rubber injecting formula of a chlorinated polyethylene gas inlet rubber tube comprising the following ingredients by weight: 100 portions of chlorinated polyethylene rubber, 30 to 50 portions of semi-reinforcing carbon black (N774), 60 to 90 portions of ganister sand (B-66), 20 to 30 portions of dioctyl-o-phthalate (DOP), 5 to 10 portions of magnesium oxide, 2.5 to 3.5 portions of FYLP-2, 1 to 2 portions of paraffin, 2 to 4 portions of calcium stearate, and 1 to 3 portions of 2,2,4-trimethyl-1,2-dihydro quinoline polymer (RD). The application of the chlorinated polyethylene gas inlet rubber tube prepared according to the formula to an automobile shows that the chlorinated polyethylene gas inlet rubber tube has optimal material property when being applied to an automobile, the tensile-strength of more than 13.0MPa, and the maximum elongation of more than 300 percent and the resistance to temperature of 130 DEG C for a long time when in use. Compared with a traditional formula, the formula greatly enhances the resistance to No.1and No.3 5w-40 engine oil and ensures the stable operation of CM rubber injecting technology, thereby better meeting the requirements of the gas inlet rubber tube of the automobile resisting heat and oil.
Description
technical field [0001] The invention relates to the technical field of rubber hoses, in particular to a glue injection formula for manufacturing automobile engine chlorinated polyethylene (CM) air intake hoses by means of a glue injection process. Background technique [0002] The intake system of the automobile engine is the artery of the engine. The intake system directly affects the performance, life and emission of the engine. The main function of the intake system is to provide clean, dry and sufficient air for the engine to ensure full combustion of fuel and protect the engine from The impact of unclean air, so as to achieve the purpose of high-efficiency combustion, low emission, and environmental protection. [0003] At present, EPDM and nitrile PVC blends are mostly used for intake pipe materials, and some models use ethylene propionate rubber (AEM) and epichlorohydrin rubber (ECO). If the connecting pipe is connected, there must be incompletely burned oil and gas ...
Claims
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Application Information
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