He first stunned the auction world by snapping up hugely expensive Chinese antiquities, but now taxi driver turned tycoon Liu Yiqian is targeting Western masterpieces, saying it is his "social responsibility" to show them to China's younger generation.

Liu has become China's highest profile art collector, hitting headlines with record-breaking buys and an irreverent approach.

His acquisitions have mainly been of Chinese heritage, most famously the tiny Ming Dynasty "Chicken Cup" for which he paid $36 million in 2014 at Sotheby's before drinking tea from it, causing a social media meltdown.

But in a departure from his Chinese collecting spree, last year Liu splashed out on Modigliani's "Nu Couche" or "Reclining Nude" for more than $170 million at Christie's, the second highest price ever paid at auction for a work of art.

Liu says he hopes the museum he founded in Shanghai, the Long Museum, where much of his collection is on display across two branches, will increasingly become a showcase for Western art as well as Chinese classics.

The Modigliani is due to go on show at the museum next year.

"The world is globalised...our collection is mainly Chinese traditional works of art, (but) we are going to expand into Western and Asian works. I hope in my life time I can collect more from both China and the West," he told AFP in an recent interview at Christie's regional headquarters in Hong Kong.

Liu said he felt a "social responsibility" to enable Chinese youngsters to experience Western masters.

"Other than Chinese traditional and contemporary works of art, younger generations in China have developed deeper recognition of Western works," he said, relaxing in an armchair and talking through a haze of cigarette smoke after cutting the ribbon on a preview ahead of Christie's spring sales in May.

"I hope top Western works of art can be exhibited in Shanghai or in our country. I think it's something someone has to do...it's cultural exchange."

- 'Being myself' -

With a personal wealth of $1.38 billion according to Forbes magazine, Liu is among the ranks of the new Chinese super-rich.

Having made his fortune in real estate and finance in the 1990s, he now runs a huge conglomerate across several industries from chemicals to investments.

Liu's auction buys have not been without controversy -- his $8.2 million purchase of an "ancient" scroll of nine Chinese characters was derided as a fake by a group of respected Chinese experts but he brushed off the scepticism.

He also remains unapologetic over drinking from the valuable porcelain "Chicken Cup", depicting a rooster and hen tending their chicks.

"I wasn't showing off," he told AFP, drinking this time from an ordinary tea cup.

"I was just being myself."

While he is eyeing Western works, Liu is also still snapping up Chinese pieces.

This month he bought a painting by Chinese master Zhang Daqian for $35.93 million at Sotheby's -- a new record for the artist at auction.

Liu has said before that his moves to buy up Chinese antiquities are part of a bid to bring heritage back to the mainland.

He paid a record $45 million in 2014 for a 15th-century Tibetan "thangka" tapestry at a Christie's auction.

Beijing has ruled Tibet since 1951, a year after invading, and considers the Himalayan region an integral part of its territory. The Tibetan government in exile and some scholars dispute China's historical claims.

"We should not be obsessed with how these things (Chinese antiquities) spread overseas," Liu told AFP.

"It doesn't matter where they are. The most important thing is for them to be preserved."