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Polyurethane Roller Making Machine /PU Roller Making Machine /CPU Roller Casting Machine /CPU Roller Making Machine /Polyurethane PU Roller Casting Machine

The same raw materials can be produced with different hardness by adjusting the A/B/C component ratio, and the raw materials need not be replaced in the hardness switching process.

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Product Introduction

We have competitive cost advantages and are able to provide good customer service, creating a good corporate image for us in the Zinc Borate 2335 200, Anhydrous Zinc Borate, PTMEG Based Casting Polyurethane Prepolymer industry. The company realizes mutual benefit between schools and enterprises by combining with various universities and realizes the improvement of technology and talents. We believe that only by maintaining a healthy talent introduction mechanism can we maintain the vitality and momentum of our company and achieve sustainable operation. In response to the complex and severe domestic and international economic situation, we carry forward the spirit of hard work and innovation.

Quazi MDI Three componment casting PU

1. Characteristics of MDI raw materials

The same raw materials can be produced with different hardness by adjusting the A/B/C component ratio, and the raw materials need not be replaced in the hardness switching process.Because MDI has excellent symmetry and two benzene rings in molecular structure, MDI products can endow products with better comprehensive physical properties. At the same time, because of chemical reaction factors, the product characteristics are also different from TDI.

(1) Higher resiliency

(2) Higher shrinkage rate

(3) Aging resistance and improved color stability

(4) Decreasd temperature resistance

2. MDI three-component feedstock belongs to semi-prepolymer, and the reaction rate of-0H is less than that of-NH2. In order to obtain better physical properties and production efficiency, catalyst is needed.

3. Environmental protection

The vapor pressure of MDI is much lower than that of TDI, and it has aromatic odor and little toxicity in the production process, so MDI is a new material that meets the needs of environmental protection.

4. Storage conditions of raw materials

Storage requirements	Raw materials	Time	Storage condition	Shelf life
	HJ33M-A	May 1-October 1 (spring and summer)	Below 30 ℃, keep away from light and dry, and it is recommended to store it in cold storage	6 months after receipt > 30 ℃ storage time < 1 month
	HJ33M-A	October 1-May 1 (autumn and winter)	Under 30 ℃, keep away from light and dry, without other special requirements	6 months after receipt of the goods
	HJ33M-B	Year-round	Store at room temperature, away from light and dry	2 years after receipt of goods
	HJ33M-C	Year-round	Store at room temperature, away from light and dry	2 years after receipt of goods
	Catalyst	Year-round	Store at room temperature, away from light and dry	2 years after receipt of goods

Specifications

Item	Standard	Unit	Hardness
Item	Standard	Unit	60A	65A	70A	75A	80A	85A	90A	95A
HJ33M-A	-	g	100	100	100	100	100	100	100	100
HJ33M-B	-	g	224	184	144	124	104	84	69	56
HJ33M-C	-	g	7.25	9.05	10.85	11.75	12.65	13.55	14.20	14.80
Catalyst	-	‰	1~3	1~3	1~3	1~3	1~3	1~3	1~3	1~3
HJ33M-A temperature	-	℃	45-50
HJ33M-B temperature	-	℃	65-75
HJ33M-C temperature	-	℃	35-40
Die temperature	-	℃	100-110
Post-maturing conditions	-	h/℃	(12-24)/100 according to product size
Gel time	-	mins	7~10	7~10	7~10	5~7	5~7	3~5	3~5	3~5
Demoulding time	-	mins	40	40	40	30	30	30	30	30
Tensile strength	GB/T528-2009	Mpa	35-37	36-38	36-38	38-40	38-43	42-47	43-48	47-52
100% modulus	GB/T528-2009	Mpa	1—2	2—3	2—3	2—4	3—5	5—7	6—8	8—10
300% modulus	GB/T528-2009	Mpa	2—4	5—8	7—9	9—12	11—14	13—16	14—17	17—20
Elongation at break	GB/T528-2009	%	551-654	532-637	522-625	522-623	481-582	432-535	422-525	425-527
Tear strength	GB/T529-2008	KN/m	36-44	42-54	52-63	61-73	71-82	81-92	92-104	104-120
Rebound	GB/T1681-2009	%	51-52	50-52	50-52	49-51	48-50	45-47	43-45	41-43
Density (25 ℃)	GB/T533-2008	g/cm2	1.21	1.21	1.22	1.22	1.22	1.23	1.24	1.24
DIN drum wear	GB/T9867-2008	mm3	≤40	≤40	≤38	≤38	≤38	≤38	≤35	≤35

Our self requirements for the production of Polyurethane Roller Making Machine /PU Roller Making Machine /CPU Roller Casting Machine /CPU Roller Making Machine /Polyurethane PU Roller Casting Machine should not only conform to the national environmental protection standards, but also surpass and even reach the international level. The company's precise internal organization structure, fine division of labor, and sincere cooperation have laid a scientific and effective management foundation for the development of the company. By virtue of our strong comprehensive strength and outstanding competitive advantages, we have maintained a rapid and steady development.

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