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Modified quartzite resin as well as preparation method and application thereof

A quartz stone and resin technology, which is applied in the field of artificial quartz stone synthesis, can solve the problems of difficult to make beautiful appearance and soft color tone, long reaction period of preparation process, high temperature resistance and easy deformation, etc., and achieves good surface air dryness. , Short curing time, stiffness and hardness are not easy to deform

Pending Publication Date: 2021-02-12
湖北旺林新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing commonly used quartz stone formulas on the market mostly use ethylene glycol, diethylene glycol, propylene glycol and neopentyl glycol. The scope of the formula is relatively limited, and the quartz stone resin produced on the basis of this formula is widely prone to cracking and breaking at low temperatures. Not resistant to high temperature, easy to deform, incomplete curing, low shrinkage rate and difficult demoulding, etc.
[0003] Use propylene glycol and terephthalic acid to improve quartz stone resin. The color of quartz stone resin prepared by propylene glycol is light yellow. It is not easy to color when mixed with various pigments, and it is difficult to make a beautiful appearance and soft tone. At present, the price of propylene glycol in China is constantly increasing. rising costs
The quartzite resin prepared by neopentyl glycol has a lower heat distortion temperature and lower curing shrinkage rate, is not resistant to high temperature and is not easy to demould, the preparation process has a long reaction cycle, and wastes manpower and material resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0041] Embodiment 3 is the best embodiment of the present invention, and the present invention will be further described below in conjunction with the embodiment.

Embodiment 1

[0043] A modified quartz resin, comprising the following raw materials in parts by weight:

[0044] Phthalic anhydride 150kg, maleic anhydride 250kg, methylpropylene glycol 210kg, diethylene glycol 100kg, ethylene glycol 190kg, triphenyl phosphite 2kg, hydroquinone 200g, styrene 500kg, methylpropylene glycol accounted for the total feed 15% of the amount.

[0045] A preparation method of modified quartz stone resin, comprising the following steps:

[0046] 1) According to the order of feeding liquid materials first and then solid materials, add methyl propylene glycol, ethylene glycol, diethylene glycol, maleic anhydride, phthalic anhydride, triphenyl phosphite and Heat up hydroquinone to 160°C and keep it warm for 30 minutes; take a sample to measure its acid value as 67mgKOH / g, and when the temperature is lowered to 105°C, the cone-plate viscosity is 280cp.

[0047] 2) After vacuuming to 0.07MPa for 3.2h, the vacuum degree reaches 0.05-0.08MPa, the acid value of the sampli...

Embodiment 2

[0049] A modified quartz resin, comprising the following raw materials in parts by weight:

[0050] Phthalic anhydride 180kg, maleic anhydride 190kg, methylpropanediol 420kg, diethylene glycol 70kg, ethylene glycol 50kg, 2,5-di-tert-butylhydroquinone 2.5kg, methylhydroquinone 200g, diallyl phthalate 450kg, methyl propylene glycol accounted for 30% of the total charge.

[0051] In the preparation method of quartz stone, other conditions are the same as in Example 1, step 1) keep warm for 25 minutes, take a sample to detect the acid value is 70 mgKOH / g, and the cone-plate viscosity is 270cp when the temperature is lowered to 105°C.

[0052] Example 3

[0053] A modified quartz resin, comprising the following raw materials in parts by weight:

[0054] Phthalic anhydride 150kg, maleic anhydride 190kg, methylpropylene glycol 265kg, diethylene glycol 70kg, ethylene glycol 100kg, triphenyl phosphite 2kg, hydroquinone 200g, styrene 450kg, methylpropylene glycol accounted for the tot...

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PUM

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Abstract

The invention discloses modified quartzite resin as well as a preparation method and the application thereof, and belongs to the technical field of synthesis of artificial quartzite. According to thepresent invention, propylene glycol and terephthalic acid are adopted to improve quartzite resin, the quartzite resin prepared from propylene glycol has a light yellow color, is not easily colored when blended with various pigments, and has characteristics of beautiful appearance and soft tone, the propylene glycol price in China continuously rises at present, and the cost is continuously increased. The quartzite type resin prepared from neopentyl glycol has lower thermal deformation temperature and lower curing shrinkage rate, is not resistant to high temperature, is not easy to demould, is long in reaction period of the preparation process, and wastes manpower and material resources. According to the invention, propylene glycol and neopentyl glycol are completely replaced by a specific amount of methyl propylene glycol, so that the artificial quartz stone resin with color, mechanical properties and processability close to those of natural quartz stone is obtained, the processing period is remarkably shortened, and the production efficiency is improved.

Description

technical field [0001] A modified quartz stone resin and its preparation method and application belong to the technical field of artificial quartz stone synthesis. Background technique [0002] Quartz stone resin is widely used in sinks, dressing tables, bathtubs, furniture, countertops and craft decorations, and can also be used in artificial quartz stone plates, pattern plates, etc. With the improvement of the quality of life of human beings, the synthesis and development of quartz stone resin with better performance and better usability has become the focus of future research. However, the existing commonly used quartz stone formulas on the market mostly use ethylene glycol, diethylene glycol, propylene glycol and neopentyl glycol. The scope of the formula is relatively limited, and the quartz stone resin produced on the basis of this formula is widely prone to cracking and breaking at low temperatures. Not resistant to high temperature, easy to deform, incomplete curing...

Claims

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Application Information

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IPC IPC(8): C08F283/01C08F212/08C08F218/18C08G63/676
CPCC08F283/01C08G63/676C08F212/08C08F218/18
Inventor 张富林张敬柱杨国庆吴洪沛杨庚王雪竹
Owner 湖北旺林新材料科技有限公司
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