Methacrylic resin composition and molded article thereof
A technology of methacrylic resin composition, which is applied in the field of methacrylic resin composition and its molded body, which can solve the problems of intolerance, abrasion, etc., and achieve the effect of high scratch resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0090] [Method for preparing methacrylic resin (A)]
[0091] The methacrylic resin (A) can be prepared by any method of bulk polymerization, solution polymerization, suspension polymerization, or emulsion polymerization. Among them, bulk polymerization, solution polymerization, and suspension polymerization are preferred, and suspension polymerization is more preferred.
[0092] As for the polymerization temperature, the most suitable polymerization temperature can be selected according to the polymerization method, and it is preferably 50°C or more and 100°C or less, more preferably 60°C or more and 90°C or less.
[0093] When preparing the methacrylic resin (A), a polymerization initiator can be used. The polymerization initiator is not particularly limited, but for radical polymerization, for example, di-tert-butyl peroxide, lauroyl peroxide, decanoyl peroxide, stearyl peroxide, benzene Formyl peroxide, tert-butyl peroxyneodecanoate, tert-butyl peroxypivalate, dilauroyl p...
Embodiment
[0201] Hereinafter, the present embodiment will be described in detail using examples, but the present embodiment is not limited to the examples described later.
[0202] [Raw materials used in Examples and Comparative Examples]
[0203] When preparing the methacrylic resin (A), the raw materials used are as follows.
[0204] ・Methyl methacrylate (MMA): manufactured by Asahi Kasei Chemicals (as a polymerization inhibitor, 2,4-dimethyl-6-tert-butylphenol (2,4-di-methyl-6- tert-butylphenol)2.5ppm)
[0205] ・Methyl acrylate (MA): manufactured by Mitsubishi Chemical Corporation (14 ppm of 4-methoxyphenol manufactured by Kawaguchi Chemical Industry was added as a polymerization inhibitor)
[0206] ・Ethyl acrylate (EA): manufactured by Mitsubishi Chemical
[0207] ·n-Phenylmaleamide (PMI): manufactured by Nippon Shokubai
[0208] ・n-cyclohexylmaleimide (CMI): manufactured by Nippon Shokubai
[0209] Styrene (St): manufactured by Asahi Kasei
[0210] ・n-octylmercaptan (n-octylm...
preparation example A1
[0258]
[0259] In a container equipped with a stirrer, ion-exchanged water: 2 kg, tricalcium phosphate: 65 g, calcium carbonate: 39 g, and sodium lauryl sulfate: 0.39 g were added to obtain a mixed liquid (a).
[0260] Next, in a 60L reactor, add ion-exchanged water: 26kg, heat up to 80°C, add mixed solution (a), methyl methacrylate: 21.2kg, methyl acrylate: 0.43kg, lauroyl peroxide: 27g and n-octylmercaptan: 62g.
[0261] Then, keep about 80°C for suspension polymerization, observe the exothermic peak, then raise the temperature to 92°C at a rate of 1°C / min, and perform aging for 60 minutes to substantially complete the polymerization reaction.
[0262] Next, cool to 50°C, add 20% by mass of sulfuric acid to dissolve the suspending agent, pass the polymerization reaction solution through a 1.68mm mesh sieve to remove aggregates, and wash, dehydrate and dry the obtained bead polymer to obtain a polymer microparticles.
[0263] The obtained polymer microparticles were melt...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| surface roughness | aaaaa | aaaaa |
| molecular weight distribution | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More